| Subject | Date Asked |
|
| Large Opening in Flat Slab | 11/21/2009 |
Q: Is it possile to provide a cutting of 1200 mm dia in a flatslab for the purpose of spiral staircaase ...
A: You are not clear on whether this is in an existing slab or one that is being designed. In either ...
|
| core cutting test | 11/21/2009 |
Q: what is the criteria for core cutting test.? on how many days test result this is recommended .? ...
A: The strength gain after 28 days depends on several factors, including method and length of curing, ...
|
| core cutting test | 11/20/2009 |
Q: what is the criteria for core cutting test.? on how many days test result this is recommended .? ...
A: Yes, you can cut cores anytime after 7-14 days (so long as concrete is hard enough not to ...
|
| Temperature analysis in R.C.C. building | 11/17/2009 |
Q: this is Ravi Shankar, please tell me that what are the process of Temperature analysis in ETABS ...
A: If your building does not have very stiff columns or shear walls, then the temperature analysis may ...
|
| How to construct domes using etabs | 11/16/2009 |
Q: Mr.Arshad Khan I am an undergraduate student and I have a project that includes the design of a ...
A: The procedure is as I described in my answer above. In addition, you can visit the CSI website and ...
|
| Basement Walls, plinth beams | 11/15/2009 |
Q: I hope that you are fine and keeping good. My questions are 1) We provide beams at plinth level all ...
A: UBC makes the recommendation you have quoted as these members, when cracked, lead to higher ...
|
| Basement Walls, plinth beams | 11/14/2009 |
Q: I hope that you are fine and keeping good. My questions are 1) We provide beams at plinth level all ...
A: The effect of plinth beams on lateral stiffness/deflection depends a lot on the geometry (e.g. depth ...
|
| flat slab and flat plate | 11/14/2009 |
Q: 1-What are the methods and applications of the flat slab and flat plate in Bahrain? 2- What are the ...
A: Flat slabs in Bahrain are either plain RC or post-tensioned. The latter are more economical for ...
|
| Basement Walls, plinth beams | 11/14/2009 |
Q: I hope that you are fine and keeping good. My questions are 1) We provide beams at plinth level all ...
A: 1. If the plinth beams are contributing to lateral stiffness of the frames, then include them in the ...
|
| etabs wall design | 11/14/2009 |
Q: How I will get the reinforcement for a wall after the analysis and design?thanking you.
A: This procedure is a bit long to describe over this medium, but if you refer to the manuals provided ...
|
| Fireproofing of steel buildings | 11/13/2009 |
Q: can u plz guide me that in which cases we make our building fireproof with reference to steel ...
A: Fire ratings are determined in accordance with local authority regulations and so you need to refer ...
|
| Column Loading | 11/12/2009 |
Q: while doing analysing a G+1 villa,I do not need major moment or shear transfer to a particular ...
A: Changing the rebar distribution will make little difference. You can alter the load-paths by ...
|
| structural design | 11/11/2009 |
Q: is it possible to provide a column of size 150x700 in a G+1 villa ? thanking you,
A: Only if it is a very lightly loaded column (in fact this could be classified as an RC wall), and you ...
|
| Foundations in swamps | 11/10/2009 |
Q: What type of Foundation would you choose to erect a water tower that is being placed on concrete ...
A: A raft would be adviseable, as swamps can have soft ground, and the raft will spread the pressure ...
|
| Final Year project topics | 11/9/2009 |
Q: ..could u suggest me some latest structural engg project topics... i m more interested in some ...
A: This is such a wide subject- it could any of the following: 1. High strength concrete 2. ...
|
| In some portion of beam decreasing the effective Cover will effect the strength of beam? | 11/9/2009 |
Q: Here in our project some portion of roof inverted beam has to chipped off to fix the purlins(Inorder ...
A: If the portion of concrete you have chipped off is in the compression zone (e.g. mid-span of a ...
|
| Construction demolition | 11/8/2009 |
Q: arshad could you give me some advice and procedures about the method of demolition apart of ...
A: Without knowing the details it is difficult to advise, but basically for a hordy slab system that ...
|
| Final Year project in Kenya | 11/7/2009 |
Q: I am final a year Civil Engineering student in Kenya, and am not sure which project I should choose ...
A: Jambo Eick, This is not quite my area of expertise, but knowing the problems of urban cities in ...
|
| Etabs (Perimeter beam for flat plate) | 11/7/2009 |
Q: I am now modeling a 5 Storey car building (flat plate system with perimeter beam). I notice that the ...
A: Yes, what you assume is correct- if the slab is quite stiff in relation to the beam, then it will ...
|
| Supports under Raft(Etabs) | 11/7/2009 |
Q: I hope that you are fine and keeping good ! I was reading an etabs design manual of Atkins and it ...
A: If you have access to the Atkins Stroogle website, you will see the full arguments there for and ...
|
| civil engineer | 11/6/2009 |
Q: what are some advantages and disadvantages of a civil engineer?
A: I presume you enquire about a career in civil engineering? If so, the advantages are that you will ...
|
| stay plates | 11/5/2009 |
Q: plz explain what are stay plates and how their spacing is decided ? regards thanks in advance
A: These are stiffener plates either at the ends or along the lengths of I-beams, H-columns or ...
|
| ETABS questions | 11/5/2009 |
Q: I want a pdf file of reinforced concrete building by using ETABS,i don't clear it's tutorial.
A: Your query is not very clear to me. I presume you are looking for an input file (EDB file) for a RC ...
|
| ETABS Section Cuts | 11/4/2009 |
Q: I defined the section cut by providing (x,y) coordinates. how can I view the section cut? thanking ...
A: many of the questions you ask me about ETABS can be answered by simply going to the help menu, such ...
|
| structural design | 11/2/2009 |
Q: 1.I would like to clarify.while I'm doing modelling in etabs,I'm not providing any kind of freedom ...
A: 1. You can consider them fixed, but with property modifiers to simulate cracked sections for ...
|
| Assessing a new house | 11/2/2009 |
Q: Good day sir, Please how do i assess a new house for soundness of Civil, structural, electrical, ...
A: You really need to consult an estate agent/surveyor for a detailed list, but these websites should ...
|
| Relation between the thickness of a wall and its length | 11/2/2009 |
Q: If I consider a dam that is 10 meters in height then the pressure at the bottom of the dam will be ...
A: This depends on which type of dam wall you are designing- an arch dam or a gravity dam or a ...
|
| Anchoring in RCC | 10/31/2009 |
Q: I have to anchor a roof truss in an existing RCC Beam.. (this is an issue it self ) So the problem ...
A: There is no drawing attached, but in any case you should not just rely on an adhesive as that can ...
|
| Flat slab design of tall building | 10/30/2009 |
Q: Refer to the question and your answer at ...
A: Yes, your approach can work so long as you do not intend the slabs to be fully-fixed to the core ...
|
| cantilever slabs | 10/28/2009 |
Q: Can you please tell me about cantilever slab. Like what are it's adnavtages, where to provide ...
A: The main advantage is that you can have a column-free zone for movement and views below the slab. ...
|
| Horrizontal Stirrups for Beam Bracket | 10/28/2009 |
Q: I am working as a Quantity surveyor over here in Abu Dhabi. I am confused with Horizontal Stirrups ...
A: Horizontal stirrups are normally provided for brackets and corbels to resisit the tensile forces ...
|
| Point load on load bearing wall | 10/28/2009 |
Q: |I have a 9 M by 9 M hall with only external load bearing wall. To divide the slab inside I have ...
A: Yes, so long as the contact pressure does not exceed the capacity of the load-bearing blocks and ...
|
| structural design | 10/27/2009 |
Q: thanx so much for your presence sir.I would like to get clarified on following 1.upto howmany floors ...
A: 1. This depends on the slenderness and natutal frequency of the building as well as local codes. In ...
|
| structural eng | 10/15/2009 |
Q: Sir, In R.C building demolition/renovation how can one demolish groundfloor columns to create a ...
A: This is a complex and potentially dangerous proposition, as the only way you can do it safely is to ...
|
| Concrete tesing thesis | 10/11/2009 |
Q: My name is Ernst and I'm a final year Civil Engineering student, I just received my thesis topic ...
A: There is a lot of material available on the internet, if you google the subject (such as ...
|
| structural design | 10/10/2009 |
Q: Is it possible to rotate a column (eg.500x200) to 90 deg. in the above floor from its position in ...
A: This is a major change in size, as the only common area is 200X200, so I would say it will be ...
|
| solid slab shear | 10/9/2009 |
Q: why solid slab have no stirrups
A: This is mainly because shear in solid slabs is evenly distributed at the beam/wall supports and is ...
|
| Spring Stiffness & Subgrade Modulus | 10/8/2009 |
Q: how can I convert soil bearing cappacity to area springs ? thanking you....
A: This is dependant on the soil type and its level of compaction. You normally get subgrade modulus ...
|
| Expansion joints in structures | 10/8/2009 |
Q: when the length of structure(buildings) exceeds certain limit, then expansion joint is provided, ...
A: If the foundations are good and you do not have any problems with differential settlement, then you ...
|
| Expansion joints in Water retaining structures | 10/5/2009 |
Q: Sir, Do we need to insist expansion joints in walls or base slab for an RCC Ground water reservoir ...
A: If the design takes care of all stresses caused due to temperature variations, and if you take care ...
|
| rcc slab | 10/4/2009 |
Q: How should the slabs in multi-storey rcc frame structure( buildings of four to five storey) be ...
A: If it is possible to provide continuity rebar across two adjacent slab panels, then that is the ...
|
| striuups | 10/4/2009 |
Q: please explain me the difference of 4 legged,6 legged %26 8 legged stirrups with sketch must
A: You can have 4, and 6-leg stirrups, but these are normally in wider beams, otherwise there would be ...
|
| senior project dissertation topic | 10/3/2009 |
Q: this is last year in B.Sc Civil Engineering in Bahrain. I am looking for a nice topic for my senior ...
A: Yes, you have the correct approach. For case studies, you could use the Bahrain WTC (with the wind ...
|
| senior project dissertation topic | 10/3/2009 |
Q: this is last year in B.Sc Civil Engineering in Bahrain. I am looking for a nice topic for my senior ...
A: I would recommend that you go for subject 3 (Green Building Costs) as that is very topical at the ...
|
| Moment magnification factor from ETABS | 10/2/2009 |
Q: How can I get the value of moment magnification factor from ETABS? If I do P-delta analysis does it ...
A: Yes, ETABS does calculate magnification factors and includes these in the output. This applies ...
|
| etaabs | 10/1/2009 |
Q: While doing analysis in etaabs ,Is it better to consider analysis property modification factors for ...
A: Visit this website and scroll up to section 10.11.1 and you will see all the factors. ...
|
| etaabs | 9/30/2009 |
Q: While doing analysis in etaabs ,Is it better to consider analysis property modification factors for ...
A: This depends what you are analysing for- in simple terms, if it is for wind loading, you can use 1, ...
|
| Spacings of expansion joints in Gulf Region | 9/28/2009 |
Q: I was told that due to extreme variations in temperature in a day (night time and day time in 1 ...
A: As far as I know, there are only guidelines, not strict requirements. However, some local ...
|
| Spacings of expansion joints in Gulf Region | 9/28/2009 |
Q: I was told that due to extreme variations in temperature in a day (night time and day time in 1 ...
A: The daily range is around 15-20 deg C, and the maximum recommended spacing of joints is around 50m. ...
|
| Inclined RCC columns | 9/26/2009 |
Q: Due to architectural requirements I have requirement of providing an inclined column. can you please ...
A: You have asked me this question before and I answered it on 16th March as follows: The main ...
|
| core wall design | 9/26/2009 |
Q: What is the max.opening that can be provided in a corewall for the design of multistoried ...
A: This depends on the aspect ratio of the opening in relation to the core wall, but in any case you ...
|
| Retaining Wall Cracks | 9/25/2009 |
Q: sir i am doing project of building size 120.0mts*80.0mts .height of the slab is 4.50mt.the building ...
A: Based on the limited info you have given, this sounds like an under-design of the retaining ...
|
| interview | 9/24/2009 |
Q: Q: How much does a civil engineer get paid? Q: What is your job title? Q: Why did you decide to ...
A: My job title is Director of Structures. The starting salary for a graduate in UK would be around GBP ...
|
| Wind & Seismic Loading | 9/23/2009 |
Q: sir, Do we need to consider the earthquake load and wind load analysis for a G+6 building? how many ...
A: Wind loading should be considered for all buildings, as depending on location/exposure, even single ...
|
| high school interview project | 9/23/2009 |
Q: I need to interview a civil engineer for my high school class, because it might be a field of work ...
A: These are far too many questions for me to answer in detail, but I have been asked similar questions ...
|
| Cantilever / Supported Balcony Loads, Moments & Forces | 9/17/2009 |
Q: I am currently studying for a distance learning HND in construction and am having serious headaches ...
A: This is quite an involved question, but you can break it down into steps and do the following: 1. ...
|
| box culvert | 9/17/2009 |
Q: i am trying to analysis the twin box culvert that is subjected to wheel loads.I want to know how to ...
A: This is normally designed on basis of an influence line (moving loads, like for bridges), but you ...
|
| Building High-rise | 9/16/2009 |
Q: how we build a multi storied building
A: This is a complex subject but you will get some guidance from this website: ...
|
| scope in civil engg. | 9/16/2009 |
Q: i'm doing my b.tech civil engg. 1st sem. from tezpur univ.i am not sure about it's ...
A: Without knowing the local market, I would say that if you enjoy your subjects, then stick with the ...
|
| Concrete strength | 9/15/2009 |
Q: Salams, Is there any methods to increase the strength of the concrete after concrete is poured. ...
A: If it is freshly poured, then good curing methods can ensure that you get the best possible ...
|
| concrete | 9/10/2009 |
Q: Arshad Khan recently we have a serious problem in executing of pedestals which is creating bubbles ...
A: Yes, this can be a serious problem especially if the pedestals have rebar embebbed, which can ...
|
| Rebar Cranking | 9/10/2009 |
Q: "The starter bar location for column was out of alignment about 30 - 40mm, then cranking of rebar is ...
A: The slope is independant of diameter of bar, as it is the resultant horizontal component of ...
|
| moment | 9/9/2009 |
Q: i am trying to figure out what a moment from an engineering stand point is and can u plz give me 3 ...
A: A moment is the internal coupling force (or stress) created within a member due to external loading. ...
|
| Combined Footing | 9/9/2009 |
Q: I am designing a foundation made up of a four beams connected together. size of beams 6.85m x 0.85m ...
A: You need to obtain the modulus of sub-grade reaction and use this to form the spring-stiffnesses for ...
|
| about final year project | 9/1/2009 |
Q: I m a student of B.E.(civil) from latur and I need your help for my final year project topics ...
A: If you are seeking ideas for topics, then here are a few: 1. High strength concrete 2. Sustainable ...
|
| civil engineering | 9/1/2009 |
Q: Sir, please simply tell me the difference of Deep ruled pointing, Tuck pointing and Flush Pointing
A: I am not an expert in blockwork, but from what I can make out, these are terms for how one finishes ...
|
| footing | 8/31/2009 |
Q: I am designing a footing whick looks like an inverted L-shape. what is the way of designing such a ...
A: Assuming that the ground at the inside corner of the L remains intact and that the vertical drop of ...
|
| windmills | 8/31/2009 |
Q: I am trying to make a windmill. Please look at my sketch. Can you think of an answer to my two ...
A: This is not quite my area of expertise, but having looked at your sketch, the answers are: 1. Yes, ...
|
| stirrups shape | 8/31/2009 |
Q: i am working as a consultant engineer.we are following the stirrups (shear links)ends should bent ...
A: The 45 degree bend is a requirement for structural ductility detailing for seismic zones. As the old ...
|
| the effect of cantilever in dynamic analyzing | 7/18/2009 |
Q: in my project there is along cantilever so when i analyzed the model usin dynamic anlyzing i noticed ...
A: It seems that your cantilever is actually a slab varying in span. If the maximum span is 4m and the ...
|
| RCC footing | 7/7/2009 |
Q: i have to design isolated footings of columns which are 10mm apart from each other because of ...
A: In this case, you should not take the joint through the footing- in fact you can stop the movement ...
|
| structural design | 7/6/2009 |
Q: Could you advise a site that which describes the manual analysing and design of posttensioned slabs ...
A: Please study this book- it will answer 95% of the questions you have been asking me about RCC and ...
|
| diagonal reinforcement | 7/6/2009 |
Q: Could you please advice what is the importance of the diagonal reinforcement in the outside corners ...
A: This depends on the size of the opening in relation to the span of the slab and also on the location ...
|
| SAP2000 & ETABS | 7/5/2009 |
Q: Which types of structures preferable to do in SAAP rather than Etaabs.Can I analyse and design ...
A: Firstly, these software are called SAP2000 and ETABS and you get full details of their capabilities ...
|
| Actual detail of connections | 7/4/2009 |
Q: good day sir! I'm a new civil engineer, just want to ask the actual structural details of fixed, ...
A: If the rebar from column is bent over and has full anchorage into the beam, then that can be ...
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| structural design | 7/4/2009 |
Q: While designing underground water tanks,Is it preferable to do in SAAP as etaabs cannot do that ...
A: That is simple- depending on the number of wall elements for the height, just do manual calculations ...
|
| Punching | 7/2/2009 |
Q: I have 2 opening adjacent to a column in flat slab. Please advice how to check the Punching safety. ...
A: That depends on the width of the openings compared to the width of the column. If the latter is ...
|
| Pad Foundation design | 7/1/2009 |
Q: I am designing a pipe bridge across a river. I need to calculate the area of the footing for the Pad ...
A: The 1:600 slope is insignificant. Moments will be incurred orthogonal to the axis of the pipe, as I ...
|
| Design for Thermal Stressess | 7/1/2009 |
Q: Arshad, Thanks for your reply of my first query in this forum regarding braced & unbraced columns. ...
A: If there is no chance of bracing the column (or any part of the building), then you can cast on the ...
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| Pad Foundation design | 6/30/2009 |
Q: I am designing a pipe bridge across a river. I need to calculate the area of the footing for the Pad ...
A: Assuming that the pipe is straight, without any bends near the pad footings, then you do not need to ...
|
| 40' Tall Retaining Wall | 6/29/2009 |
Q: . This is an emergency.. can you please tell me how to design a 40' high cantilever retaining wall.. ...
A: Without knowing details of what you are retaining (properties of soil, ground water level, ...
|
| Braced & Unbraced Column in RCC Structure | 6/29/2009 |
Q: Mr. Arshad, Pleas see below my query: If a 400x400 RCC column is connected to 350x600 deep beams ...
A: 1. Yes, it can be considered braced against rotation, but not sway unless the whole building is ...
|
| Spring Stiffness & Subgrade Modulus | 6/28/2009 |
Q: what is the relation between spring stiffness and subgrade modulus?thanking you..
A: Assuming your units are the same, then subgrade modulus per m2 can be converted to spring stiffness ...
|
| Container Design | 6/27/2009 |
Q: I hope that you are fine. I have to design a container that has to be used as an office. but i dont ...
A: If you are talking about a standard shipping container, then that is strong enough to act as an ...
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| Vierendeel truss | 6/25/2009 |
Q: Regarding Vierendeel trusses, are the chords and braces typically constructed with the exact same ...
A: Not necessarily, but they may be due to ease of making the connections. The welds should be full ...
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| safe | 6/25/2009 |
Q: Thanx so much as my colleague already asked the question that I have sent before and I got ...
A: I can tell from your question that you do not understand the basic principles of flat slab analysis ...
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| Structural Beam | 6/24/2009 |
Q: ..My name is Zairul..how is the better way to joint the new concrete stump(using for membrane ...
A: As membrane structures have high tension forces, you have 2 options: 1. Use one or a pair of steel ...
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| SAFE Deflections | 6/23/2009 |
Q: Sir, In the elastic deformed shape got from safe after analysing a slab, the values are ( max.0.000 ...
A: This depends on the span and the amount of rebar that you have detailed. Deflection itself is not an ...
|
| slab failure | 6/23/2009 |
Q: What may be the causes for the failure of 2way rcc slab?, slab is fallen down and cracks are also ...
A: This could be due to several reasons or combination of reasons, such as: 1. Insufficient thickness ...
|
| RCC slab & beam depths | 6/22/2009 |
Q: what should be the thickness of a slab beam of a one floor house.
A: You have not given enough details to advise properly, but as a rule of thumb, any simply-supported ...
|
| SAFE Analysis | 6/22/2009 |
Q: while doing slab design in safe,which kind of analyzing that I should choose normal,normal cracked ...
A: In most cases normal is fine. Cracked is used where you have long spans/shallow slabs and deflection ...
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| RCC Column/Beam Joint Rebar Detailing | 6/22/2009 |
Q: In RCC space frameS, the Beam-Column joint at the discontinuous end; if we provide hooks using the ...
A: Based on the detailing in the picture, the joint will not be fully-fixed, nor a full hinge- it will ...
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| Geotechnical | 6/19/2009 |
Q: Sir, I am a graduate in Civil Engineering and working as a design Consultant in Power industry.Now ...
A: The decision really depends on what interests you more- statics and analysis (and seeing actaul ...
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| expasion joint | 6/18/2009 |
Q: is any expansion joint or construction joint required in a RCC flat slab, span about 62m X 100m for ...
A: Yes, you should have at least on expansion joint to break the 100m into 50m. If no expansion joint ...
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| RCC beam load Capacity | 6/18/2009 |
Q: Sir, there are 2 Coloums of size 9" by 12" which are 17 ft apart and there is a RCC Beam of size 9" ...
A: I order to determine that, you need to know the class of concrete and the amount of main and shear ...
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| Precast and Pretensioned slabs | 6/17/2009 |
Q: Could you advise me the principle for the precaste slab? Is it same as the pretensioned slab? what ...
A: Precast slabs mean that they are made in factories or on site in relatively small sections that can ...
|
| General SBC in Tanzania regions | 6/17/2009 |
Q: What is the General Soil Bearing Capacity in Tanzania regions
A: That depends on location, as it can vary from 100 kN/m2 to 400 kN/m2 in soils, and even up to ...
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| About Stirrups | 6/16/2009 |
Q: Sir I am working as a quantity surveyor in Muscat.Now I have one doubt about stirrups. When I am ...
A: You can have 4-leg and 6-leg stirrups, but these are normally in wider beams, otherwise there would ...
|
| ETABS Energy Work Diagrams | 6/16/2009 |
Q: Could you give me an idea regarding relative work/volume diagram from etaabs model?what is this ...
A: This is not normally to do with stability but with deflection control and is a way of look at the ...
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| cranking of rebars | 6/16/2009 |
Q: What is the tolerance for rebar cranking if my starter bars for columns or RC wall are found out of ...
A: This depends partly on how stressed the compression rebar is during service- the higher the stress ...
|
| etaabs | 6/15/2009 |
Q: while supporting a beam on a cantilever portion whether we need to release the end joint of the beam ...
A: This depends on the relative sizes and spans and loading on both the cantilever and the secondary ...
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| Atterberg Limits and Foundation Design | 6/14/2009 |
Q: Do Atterberg limits have any impact on foundation design? If so, what are the parameters to be ...
A: Yes, they do, particularly for pile design. Please see the website below for a detailed explanation: ...
|
| Civil Engineer | 6/14/2009 |
Q: Sir a 120 year old stone building have a problem of dampness.dampness is raising 8ft on wall.what is ...
A: The most probably reason for dampness is either that the original damp-proof course (DPC) has ...
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| Extension to exsisting structure | 6/14/2009 |
Q: I have a G+1 building 10years old with an open terrace they want to extend and use the terrace.Hence ...
A: You have not given enough info to advise properly, but basically you need to assess if the ...
|
| need ur advise regarding civil engineering | 6/13/2009 |
Q: Respected sir my name is zeeshan saeed i have done my civil engineering in 2005 from pakistan then ...
A: I would suggest that either you go for a refresher course at your local University, or else look for ...
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| Foundation Depth | 6/13/2009 |
Q: in filled areas where the soil is viberated and 600mm compacted highly what will be the depth of ...
A: This depends on the bearing capacity compared with applied pressure, but generally you need to be ...
|
| Prestressed Concrete | 6/13/2009 |
Q: 1.How we can design a post tensioned slab .what are the criteria in design to be followed? 2.is it ...
A: Post-tensioning is simply to apply pre-stress after casting & curing concrete, and prestressed ...
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| Concrete flat plate | 6/12/2009 |
Q: Given: A flat plate slab of 25 cm thick ,fc 30 mpa span ,clear span 690 cm ,both direction,supported ...
A: This depends on the number and location of columns- if it is just one column at the centre and the ...
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| safe | 6/8/2009 |
Q: while designing slab in safe (exporting from etaabs) while seing the punching shear its always ...
A: Without seeing the model it is difficult for me to advise, but if you are concerned about any ...
|
| designing a beamm | 6/6/2009 |
Q: how to design a beam abd how we know if the beam is the most critical beam
A: You work out the loading on the beam and then from that the internal forces (bending moments, shear, ...
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| structural design | 6/6/2009 |
Q: 1.In safe while designing raft slab Is any provision for entering soil bearing capacity rather than ...
A: 1. No, because the capacity has no relationship to soil stiffness as far as SAFE is concerned. 2. ...
|
| Class 40 concrete | 6/4/2009 |
Q: what is the ratio and strength of class 40 concrete. Also which are the areas or under what ...
A: This depends on the type of aggregate and cement and additives, but the following website will give ...
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| HELICAL STAIR CASE | 6/3/2009 |
Q: i have a helical stair case with 176^ total angle subtended by the helix the internal diameter of ...
A: Just design the section of stair that is in contact with the first floor slab as a wide beam, with ...
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| Design of Pile Cap as Pier Cap | 6/3/2009 |
Q: we are in the process of designing a at the grade bridge over a water body. In this case we are ...
A: I cannot do actual designs for you but just give advice. I would say that in principle there is no ...
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| doubts regarding plinth beams | 6/3/2009 |
Q: Mr. Arshad khan Asslamalaikum I am constructing a house in India and construction is going on I am ...
A: In principe plinth (or tie) beams between pads are only required if: 1. You expect differential ...
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| Beam design | 5/13/2009 |
Q: Please, I want to know whether the position of the slab affects the effective depth. i.e. is the ...
A: The effective depth of a beam is increased if the slab is in the compression side of the beam, when ...
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| RC Cantilevers | 5/13/2009 |
Q: 1.what is the max span of a cantilever beam that can be designed?is any limitation regarding this ...
A: 1. You can design any span, so long as you take care of long term deflections- so the span/depth ...
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| RCC design | 5/13/2009 |
Q: i wants to know building design ,RCC structur design like foundation base, columns, slab etc. with ...
A: This is a complex subject which you will need to learn by instruction or self-study. These sites ...
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| Column Structure & design | 5/12/2009 |
Q: From what depth should I start my columns for a three storey building.L=40" B=12" H=34" in Surat ...
A: Water depth is not a major criteria, but the ground conditions is what determines depth- so, without ...
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| Flat Slab | 5/12/2009 |
Q: Due to restricted hieght, I am asked to Design a Flat slab System. I have never designed it ...
A: This is complicated if you do not have a regular grid of supports and the only way is to use a 3-D ...
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| Column Structure & design | 5/11/2009 |
Q: From what depth should I start my columns for a three storey building.L=40" B=12" H=34" in Surat ...
A: I presume your dimensions are in feet and not inches (")? Anway, the depth of foundation is ...
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| civil engineering | 5/10/2009 |
Q: which type of foundation should be preferred in ordinary houses?
A: That depends on the ground conditions. If the ground is weak or likely to result in uneven ...
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| honeycombs in concrete | 5/8/2009 |
Q: we are doing post tensioning for a slab.After concreting the slab we realise there are honeycombs at ...
A: You can repair this by ensuring all loose aggregate is removed and then using a bonding agent such ...
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| designe bridge of pipe rack | 5/6/2009 |
Q: I have problem that seems you can help me to solve . I want to design bridges for pipe rack.But i do ...
A: I am not sure I understand your question too well, but for wind loading on an open lattice structure ...
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| cracks in concrete | 5/6/2009 |
Q: Can you advise me ,for the remedial measures if cracks are seen in RCC structures and the bars are ...
A: What you need to do is remove the concrete cover and expose the corroded rebar. Remove all loose ...
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| deflection results in staadpro | 5/6/2009 |
Q: do i have to check global or local deflection for the members. please help! ANSWER: Hi Anees, ...
A: In your case, the overall deflection of the slabs is a critical servicibility criterion (for example ...
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| deflection results in staadpro | 5/6/2009 |
Q: do i have to check global or local deflection for the members. please help!
A: This depends on the nature of the structure and what you are trying to check. For example, for a ...
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| raft footing | 5/2/2009 |
Q: my question is that what parameter are used to design the thickness of the raft footing and what is ...
A: A raft foundation is designed like an upside-down flat slab, with the upwards subgrade reactions ...
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| clear-span load capacity | 4/30/2009 |
Q: Mr. Khan, I am the owner of an older home which has had several upgrades performed over the years. I ...
A: What you are proposing is feasible, but you will really need a local structural engineer to study ...
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| splices in rolled steel sections | 4/30/2009 |
Q: i have a steel H beam around 600mm deep spanning more than 12m, which is the normally available ...
A: There are two common ways of splicing: 1. Welding, using full penetration butt welds. 2. Bolting- ...
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| Combined foundation | 4/27/2009 |
Q: I am trying to design a combined footing (slab and 2 plinths). how do I find the centre of gravity ...
A: Yes, that is a simple case of using first principles by taking moments about the edge of the base ...
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| Structural Steel Connections | 4/25/2009 |
Q: I want to know the detailing we do for steel to steel connection in Steel Buildings and sheds, and ...
A: Visit these sites and you will have a lot of useful links/images: ...
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| Combined foundation | 4/24/2009 |
Q: I am trying to design a combined footing (slab and 2 plinths). how do I find the centre of gravity ...
A: I don't know if you got the signs right- are you saying that 400kN is downwards and 200 kN is ...
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| Tutorial on foundation design | 4/23/2009 |
Q: I am looking for tutorial lessons regarding foundation design. I was not able to practice for a long ...
A: It is admirable that you wish to learn the basics rather than blindly use software. I regret to say, ...
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| Project | 4/22/2009 |
Q: Name a few projects you've worked on and what role did you play in the project?
A: These are some of the projects: 1. Textile Mill in Tanzania- lead structural engineer 2. Water ...
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| Cylinder and Cube Strengths | 4/14/2009 |
Q: what is the relation between test results are obtained from cylindrical specimen & rect angular ...
A: You need to be careful as to which codes the concrete is referring to. If it is to the old codes, ...
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| Cylinder and Cube Strengths | 4/13/2009 |
Q: what is the relation between test results are obtained from cylindrical specimen & rect angular ...
A: Generally a cylinder test strength is between 5% and 25% less than a cube test strength for a given ...
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| Notional Loads | 4/13/2009 |
Q: in AISC05 ASD and LRFD, when adding the notional loads to the structure, the code states to add the ...
A: This is not a code I am familiar with, but from what I can make out, notional loads need to be ...
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| etaabs | 4/12/2009 |
Q: Can we do eccentric connection between column and beam in etaabs? thanx so much.
A: The answers to many of the questions you are asking me on ETABS are readily available in the help ...
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| Modelling Base Fixity Conditions | 4/12/2009 |
Q: which would be the better way of assumption for the support conditon while modelling either pinned ...
A: This depends on a few variables- whether it is high-rise (in this case either is fine as it makes ...
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| etaabs | 4/11/2009 |
Q: while doing auto mesh in slab in etaabs I'm getting a warning like 'check ...
A: Ravi, It is diffucult to comment without seeing the model. I suggest you send it to support at CSI ...
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| structural details | 4/11/2009 |
Q: i need to construct a building 25 feet wide, 45 feet long & 15 feet clear height inside, no columns ...
A: You have not given me enough info to advise you- for example, will the building be in RC or steel, ...
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| Rebar Sizes Etabs | 4/9/2009 |
Q: . I hope that you are keeping welll. My question is that we can define/edit rebar sizes in etabs.. ...
A: This is from the ETABS help menu: Reinforcement Bar Sizes Form: Reinforcing Bar Sizes Define the ...
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| etaabs | 4/8/2009 |
Q: thanx so much for your valuable support always.In Etaabs 1.whether we need 2 add ground floor slab ...
A: 1. If the ground slabs are ground-bearing, rather than suspended, then there is no need to model ...
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| Rebar Sizes Etabs | 4/8/2009 |
Q: . I hope that you are keeping welll. My question is that we can define/edit rebar sizes in etabs.. ...
A: This feature is there because ETABS may not allocate the best size/distribution of rebar that is ...
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| Rcc Design | 4/7/2009 |
Q: Salam I am M. Zeesha From Pakistan DAE Civil Quantity Surveyor "What is the logic of Extra Bars at ...
A: This is because the bending moment diagram is such that you will have maximum tension at the bottom ...
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| window cleaning equipment of roof slabs | 4/7/2009 |
Q: precast people refused to design slabs to accommodate for the window cleaning equipment load ...
A: In this case you need to design the slab to carry patch loads (under footprint of the pad), and you ...
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| Openings in RC beams | 4/6/2009 |
Q: i have 1000 mm x 300 mm beam (10 meter long) in first floor in 35 story building. This is well ...
A: This depends on whether you have any concentrated loads- if it is mainly UDL, then the safest place ...
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| Stepped foundation | 4/6/2009 |
Q: we have a steep road that in top and the bottom of it are single footing,what is your opinion for ...
A: You have not given me enough information, but in principle such a foundation should be done in a ...
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| Steel Structures | 4/6/2009 |
Q: 1.Can you please tell me why we use Stiffner plates apart from the apparent meaning how can I decide ...
A: 1. This website has all the info you need: http://euler9.tripod.com/bolt-database/22.html 2. ...
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| Column Lateral Ties Design | 4/6/2009 |
Q: Arshad, Actually i m working on the industrial project, so i always come acroos big columns. So i ...
A: You cannot cut corners in this regards, as the ties are not there for shear, but mainly as restaints ...
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| Diaphragm shear transfer in concrete slabs | 4/5/2009 |
Q: Once again, thank you so much for your reply (May 20, 2008). However, I would like to add to my ...
A: Firstly the shear that the diaphragm resists is the difference between the storey shear that the ...
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| Cutting reinforcement by flame | 4/4/2009 |
Q: Could you please advice which part in B.S stats that Cutting reinforcement by flam is not acceptable ...
A: Ho Wow, I do not think there is a BS restriction, but visit this site and you see lots of debate on ...
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| Steel Structures | 4/4/2009 |
Q: 1.Can you please tell me why we use Stiffner plates apart from the apparent meaning how can I decide ...
A: 1. It's mainly to get good bond for both top and bottom rebar and to prevent cracks. For inclined ...
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| Steel Structures | 4/4/2009 |
Q: 1.Can you please tell me why we use Stiffner plates apart from the apparent meaning how can I decide ...
A: 1. These are usually needed to distribute the loading more evenly or to prevent local buckling of a ...
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| Civil Engineering questions | 4/2/2009 |
Q: my name is Alex Gonzalez, i'm a sophomore at California High School. We are having to do a career ...
A: Answer: Hi Alex, My job title is Director of Structures. The starting salary for a graduate in UK ...
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| ground slab capacity | 3/31/2009 |
Q: On existing 20cm ground floor slab with y8@20c/c steel mesh a 90 ton machine 3.5x5.0m base ...
A: If the ground is very well compacted so that it does not settle with a pressure of 50 kN/m2, then ...
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| window cleaning equipment of roof slabs | 3/31/2009 |
Q: precast people refused to design slabs to accommodate for the window cleaning equipment load ...
A: You need to treat this like a moving load for bridge design- presumably the wheels will be running ...
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| Construction enginnering | 3/30/2009 |
Q: what is a basic job that someone that is a constuctional engineer does. Like do they get designs ...
A: Yes, that is what a structural engineer does- i.e. work with architects to design the most efficient ...
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| Project topics | 3/30/2009 |
Q: Please kindly assist me with some project topics relating to Qality control of civil engineering ...
A: Here are some suggestions: 1. Setting out accuracy (line and level)for say roads and bridges 2. ...
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| Silo Foundation | 3/28/2009 |
Q: I want suitable foundation type for 5 silos of diameter 25m which are constructing in one line. Soil ...
A: This would be considered a structural slab on grade, and the design needs to take account of the ...
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| Silo Foundation | 3/28/2009 |
Q: I want suitable foundation type for 5 silos of diameter 25m which are constructing in one line. Soil ...
A: That's a good point, but this really depends on what the safe bearing capacity of the soil is and ...
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| i want to set a designing consultancy | 3/25/2009 |
Q: Sir I am civil engineer master degree graduate. I have command in my subject but no experience . ...
A: I am sorry but I have no experience or knowledge of requiremnets for setting up a consultancy in AP ...
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| Energy Work Diagram | 3/24/2009 |
Q: Can you explain the use of Energy work diagram in etabs Thank you
A: These basically tell you how hard each member is working (utilisation ratio), so that you can ...
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| Isolated eccentric footing | 3/23/2009 |
Q: How to design a isolated footing where the column exactly comes on the boundary(no offset). Should ...
A: Yes, this is a common problem and you need to design it as an eccentrically loaded pad footing, ...
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| Boundary Wall Joints | 3/19/2009 |
Q: I have a boundary wall composed of reinforced concrete column with ground beams and foundation,the ...
A: Your question is not very clear, as it could be read in two ways: 1. If you want to know how often ...
|
| job and spring constant value | 3/17/2009 |
Q: SIR I AM CIVIL ENGINEER.IHV PROB. TO UNDERSTAND SPRING CONSTANT VALUE OF BOTTOM SLAB OF BOX ...
A: 1. For modulus of subgrade reaction (spring constant), refer to my answer in website below: ...
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| Concept of Unit width Design | 3/17/2009 |
Q: we have multiple cell reinforced concrete box section(tunnel) containing a huge fill of varying ...
A: One way to check this would be to take the loadings for 2 different unit widths, say 4 or 5m apart ...
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| Inclined Columns | 3/16/2009 |
Q: I have generally designed columns which are vertical in RCC Buildings..Now I got a Traditional ...
A: The main secondary effect of having inclined columns is that they introduce a horizontal component ...
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| Column Design - Etabs | 3/12/2009 |
Q: If we design column using etabs it shows overstressed while at the same time if we cross checked ...
A: In that case, the only reason I can imagine for the different results is that maybe you got the ...
|
| mezzanine reinforcement | 3/11/2009 |
Q: Khan, I am designing a wooden slab mezzanine which is 4.4m in length and 2.3m wide and to be used ...
A: This is a bit difficult to visualise, but if you are spanning the timber decking (not slab) in the ...
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| Overhead Steel Water Tank | 3/11/2009 |
Q: I need to determine the minimum allowable wall thickness for the shell and end covers of a ...
A: I regret that I do not carry out actual designs, for liability reasons-I just give advice. The best ...
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| Seismic joint & .... | 3/8/2009 |
Q: Many thanks for your reply 1. In my previous question, I should better say seismic joint, instead of ...
A: 1. Noted 2. This depends on where your main shear/core walls are. You should try and put joints at ...
|
| expansion joint | 3/7/2009 |
Q: we are designing g+15 storey structure, the length of the structure is 119m, so expansion joints ...
A: Firstly, the 40-50m normal joint spacing can be increased to 75m and even 100m, if a proper thermal ...
|
| Final year project topics | 2/26/2009 |
Q: I'm a final year student in Structural engineering. I'm interested in doing my project in ...
A: This is such a wide subject- it could be on concrete mix design or durability or strength gain, or ...
|
| Civil Engineering | 2/25/2009 |
Q: Sir. Briefly answers my few questions. (Emergency, I need to reply to my boss today. Thanks so ...
A: Basically the laps should be about rebar diameter x 40, but these can increase if the bars are ...
|
| Existing ground slab capacity | 2/23/2009 |
Q: There is a existing Ground slab, 150 mm tk. rfd with 8mm@150mm c/c bars(single mat).Now i want to ...
A: Without knowing the ground conditions, it is difficult to advise you. However, based on my ...
|
| Civil | 2/22/2009 |
Q: I am QC inspector. I want to prepare a presentation. I need some tips for that. Can you please tell ...
A: Briefly, here are my answers: 1. This can cause cracking due to shrinkage and also "surface ...
|
| Pilecap Design | 2/21/2009 |
Q: What are the things that I should look into to design a pilecap for 14 no of piles, how do I take ...
A: Try this site for a spreadsheet: http://www.structural-engineering.fsnet.co.uk/cid.htm and also ...
|
| STAAD foundations | 2/20/2009 |
Q: I'm design a four-storey structure with staad. I want to know if it is possible for staad to ...
A: I have not used STAAD for a while, but the last version did not have this facility. The only way was ...
|
| Pilecap Design | 2/20/2009 |
Q: What are the things that I should look into to design a pilecap for 14 no of piles, how do I take ...
A: That is similar to designing a piled raft, which is quite complex to analyse- you will need to do a ...
|
| Expansion joint in tall building | 2/19/2009 |
Q: I design a 30 stories building & because of the Codes we should put expansion joint in every 50 ...
A: Firstly, the 50m can be increased to 75m and even 100m, if a proper thermal analysis is done and the ...
|
| Slab vibration | 2/18/2009 |
Q: The following is a real case that occurred on a particular residential building site. A slab 6.0m by ...
A: The short answer is that the assessment was flawed, as in order to limit deflection/vibration ...
|
| Swing Bridge with electric trolley car access | 2/16/2009 |
Q: My ancestors were from Libau, Latvia. Around the turn of the century a Swing Bridge was used that ...
A: Not knowing the details, these are the possibilities: 1. The overhead cables were high enough to ...
|
| water proofing under raft in gulf | 2/15/2009 |
Q: Please provide detail water proofing procedure and also explain raft reinforcement details for high ...
A: There are many systems available in the Gulf, such as Sika or Servicised or Fosroc- you should ...
|
| resizing overhead RC tank | 2/14/2009 |
Q: I am from central Myanmar. We have an overhead RC tank in our islamic school, from which we ...
A: You have 2 options: 1. If there is enough pressure in the mains supply, then build another tank ...
|
| resizing overhead RC tank | 2/14/2009 |
Q: I am from central Myanmar. We have an overhead RC tank in our islamic school, from which we ...
A: Without having details of the RC tank (wall thicknesses, rebar, etc) and about the ...
|
| BOX CULVERT DESIGN | 2/12/2009 |
Q: How can I deign a box culvert with one cell, two cells or three cell? How to calculate the different ...
A: Please check out these sites as they will give you all the info you need: ...
|
| Subgarde Reaction in safe | 2/12/2009 |
Q: I want to know that If there is a relationship between modulus of subgrade reaction and bearing ...
A: I am afraid it is not as simple as that, becuase you need to take into account the load-settlement ...
|
| Wind Loads Uganda | 2/10/2009 |
Q: Arshad Khan My name is Andrea Viteri and I am currently working on a project with Engineers without ...
A: This really depends on location within Uganda, but in anycase I do not have the info to hand. In ...
|
| Questions about your Career | 2/9/2009 |
Q: Khan my name is Simon and i am conducting on research project on civil engineering. i am writing to ...
A: My job title is Director of Structures. The starting salary for a graduate in UK would be around GBP ...
|
| Questions about structural engineering | 2/8/2009 |
Q: I'm doing a research project in school about Civil and Structural engineering and was hoping you ...
A: My job title is Director of Structures. The starting salary for a graduate in UK would be around GBP ...
|
| Civil Engineering | 2/8/2009 |
Q: Sir can you please tell me how can one calculate the loads on a beam when its dimensions and area of ...
A: Your sizes of bars are nor clear and I presume the beam is 72 inches long, but is it 9 inches wide ...
|
| florring | 2/2/2009 |
Q: Which type of florring will cost cheaper. I want to renovate an old building which is almost 40 year ...
A: This is difficult to assess as it depends on the local market in terms of materials costs, etc. As a ...
|
| Questions regarding ETABS | 1/7/2009 |
Q: I want to ask the following questions regarding ETABS. What property shall I assign to Slab Objects ...
A: Membranes have only in-plane stiffness (so can be used to simulate diaphragms), plates have ...
|
| Structural Design | 1/5/2009 |
Q: I would like to know what is the formula for calculating Lap length and Anchorage as per the BS ...
A: Lap lengths depend on a lot of variables, such as bundling, distance from edges, whether they are in ...
|
| Civil Engineering | 1/3/2009 |
Q: How can we extend the existing foundation? or in other words How can we connect the existing ...
A: The best way to do this is to hack back the side of the existing foundation to about 50mm beyond the ...
|
| foundation | 1/2/2009 |
Q: I have a foundation of an existing 4x10 meters with isolated footing and reinforced concrete grade ...
A: If you are connecting the foundations, then it would be better to also connect the rest of the ...
|
| building construction | 12/29/2008 |
Q: what is the defference between a pad and raft foundation
A: The main difference is in proportions and how many applied loading points there are. A pad is ...
|
| Foundation Design | 12/28/2008 |
Q: I am doing my 1st year B.Sc Architectural Engineering, and for my geo-technical assignment, using an ...
A: The following websites give you step-by-step procedure for designing a strip footing: ...
|
| Main rebar of column cutted | 12/23/2008 |
Q: the main bar for the column of 4th floor (last floor) cutted by MEP people, please give me the ...
A: Nadeem, My earlier answer still applies- you need to do a stress check to see if the cut rebar is ...
|
| basement waterproofing | 12/23/2008 |
Q: One basement 10 meters beneath the ground level is being done. The raft thickness is .75 meters . ...
A: This problem has arisen possibly because proper de-watering system was not installed? Also, I would ...
|
| Main rebar of column cutted | 12/23/2008 |
Q: the main bar for the column of 4th floor (last floor) cutted by MEP people, please give me the ...
A: You have not given me enough info to advise properly, but if the bar is critical to the structural ...
|
| lift well design | 12/21/2008 |
Q: I am student of final year construction technology. I am designing a lift well 1.8 m x 2.1 m. I want ...
A: In simple terms, work out the total vertical loading (W)on the total liftshaft (from beams/slabs ...
|
| Volunteer civil engineering wok | 12/20/2008 |
Q: I have just finished with my B.E civil engineering and now I wish to gain experience. I have a full ...
A: That is very pro-active of you and commendable. Much as I would like to be your mentor, my current ...
|
| RCC | 12/19/2008 |
Q: Asalam-o-Alaikum, I want to know the possible solution for the following : A remarkable gap has been ...
A: You have not given sufficient information for me to form an opinion and isn any case such cases ...
|
| GROUND BEAMS & GRADE SLABS | 12/19/2008 |
Q: how to design a beam ans a slab resting on the ground or back filled soil? Do i have to make a staad ...
A: Ahmed, This is complex soil-structure interaction problem and depends on the stiffness of the ...
|
| final year project | 12/17/2008 |
Q: How do I design a low rise building e.g two or three floors, using materials such as reinforced ...
A: This is a very complex and involved question to answer over this medium. However, the following ...
|
| Pile Cap Design | 12/15/2008 |
Q: I just want to know, which code provides most economical pilecap design, Is it preferable to use any ...
A: You are correct that the pile cap needs to be stiff enough to uniformly transmit the load, which is ...
|
| e-tabs output check for multistorey residential building | 12/15/2008 |
Q: after running the e-tabs model including all factors like, type of soil, zone factors, ca & cv. i ...
A: The aspects you ask about depend on the shape and aspect ratio of the building and also location, so ...
|
| e-tabs output check for multistorey residential building | 12/14/2008 |
Q: after running the e-tabs model including all factors like, type of soil, zone factors, ca & cv. i ...
A: The checks you should do are: 1. Check the last run log file for any errors, then correct those. 2. ...
|
| flat slab | 12/12/2008 |
Q: 1. if a flat slab system is analyzed three dimensionally on software-etabs then to calculate ...
A: There are several references to ductile detailing, such as the ones below: ...
|
| flat slab | 12/11/2008 |
Q: 1. if a flat slab system is analyzed three dimensionally on software-etabs then to calculate ...
A: Yes, you need to add the stresses from both axial as well as unbalanced bending, which could also be ...
|
| Deflection of flexural members | 12/10/2008 |
Q: Do I Have to check Deflection of Beams with service loads or ultimate loads. Staad uses the ...
A: Most codes stipulate a total deflection limitation of span/250 for service loads only (DL+LL)and ...
|
| use of differential eqns in civil engineering | 12/8/2008 |
Q: I researched about application of differential equations in civil engineering but i can not find ...
A: This is not my area of expertise, but the following websites have some answers for you: ...
|
| RC analysis & design | 12/5/2008 |
Q: I have 3 questions to ask, i will be grateful if you could answer the questions. 1.Staad gives ...
A: 1. Yes, follow the convention that is given in the help menu of STAAD. 2. In most cases that is ...
|
| RC analysis & design | 12/5/2008 |
Q: I have 3 questions to ask, i will be grateful if you could answer the questions. 1.Staad gives ...
A: Here are your answers: 1. Yes, consider both Mx and My 2. Yes you need to ensure they have good ...
|
| concrete technology | 12/4/2008 |
Q: what are expected value/percentage strength of concrete cube test at 7,21 and 28 days for design ...
A: These percentages can vary a lot depending on the mix design and type of cement used, but on ...
|
| MAT FOUNDATION MODEL | 12/2/2008 |
Q: I have few more questions to ask, i will really appreciate, if you could help me with your ...
A: If the 3-7 value is very localised (small area), then you can ignore it. Also make sure you are ...
|
| how to design a RCC footing | 12/2/2008 |
Q: what is the procedure to design a RCC footing in a building.
A: Basically you need to work out the total vertical (gravity) loading and the total lateral (wind or ...
|
| MAT FOUNDATION MODEL | 12/1/2008 |
Q: I have few more questions to ask, i will really appreciate, if you could help me with your ...
A: 1. From the support reactions, you can determine whether the soil bearing capacity has/has not been ...
|
| asking questions | 11/29/2008 |
Q: what is the role of civil engineering in any society?and speculate on the future of civil ...
A: This sounds like a homework/essay question, which really you should do your own research for. ...
|
| Help Please | 11/28/2008 |
Q: I am very much interested in this course though i feel i am weak in drawing but i can visualise ...
A: If you can visualise structures in 3-D, then you can always develop your drawing skills. It is ...
|
| seismic basics | 11/27/2008 |
Q: i need help in seismic design... Our instructor refuses to teach us seismic analysis...and we don't ...
A: If you have an analysis package, then model the building in 3-D, apply a horzontal displacement in ...
|
| Rcc Slab | 11/26/2008 |
Q: How we can calculate the load on a slab dead load and live load in a house
A: You can work out the dead load by knowing the density and size of the structural members and ...
|
| foundation design | 11/26/2008 |
Q: I am a student civil engineer from Kenya. am made to design a piled raft foundation for 4 no. LP Gas ...
A: Jambo, Timothy, If I have interpreted your figures correctly, each tank will weigh around 70,000 ...
|
| How reinforcement to be provided in WALLS | 11/25/2008 |
Q: Can the derived reinforcement be provided 50% on each face i.e on the earth side and opposite side ...
A: This depends on whether the wall is carrying mainly vertical loads (like columns), in which case you ...
|
| Result Analysis | 11/25/2008 |
Q: please tell me how to analyze the results of the concrete cube crushing test? what is the level of ...
A: Usually this is based on statistical data and the standard deviation and current margin as ...
|
| Regarding Machine Foundations | 11/25/2008 |
Q: Salam How to do the dynamic analysis of foundation on which different types of machines operating ...
A: This is quite complex, so it may be better to separate out the bases if possible. I am not an expert ...
|
| RCC Beams | 11/24/2008 |
Q: Sir, Could you please give instructions or idea for designing an economic section of beam spanning ...
A: In oredr to design such a beam you need to estimate the total imposed loading and then analyse it ...
|
| 3d modelling using staad | 11/24/2008 |
Q: I would be very thankful to you, if you could answer my question. When we make a 3d model of a RC ...
A: If you have full continuity rebar (top and bottom) in your beam/column junction, then this can be ...
|
| Honey combing in Structural Members | 11/22/2008 |
Q: Can you please direct me the remidial measures available for honey combing and the effects of honey ...
A: If the honeycombing is in tensile zone (e.g. midspan of beams/slabs), then the main danger is ...
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| Ribbed slab | 11/21/2008 |
Q: Sir can you pls direct me on how the rib slab fuction.. Also how about the two way rib slabs ?? ...
A: This works like a series of parallel beams (usually at 750 or 900mm centres, connected with a thin ...
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| Raft foundation help | 11/21/2008 |
Q: I have a multistorey uilding for which I want to provide a raft type footing.the problem is if I ...
A: What you mean is a cellular raft and you will find some info on that in the following website: ...
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| civil engg | 11/17/2008 |
Q: Sir, please let me know the approximate total load (DL+LL) for a typical common 2-storey family ...
A: This will vary between 14-18 kN/m2 per floor for habitable spaces and about 12-14 kN/m2 for the ...
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| Regarding plinth beams | 11/16/2008 |
Q: I would be thankful to you, if you answer this few questions. 1. what is the maximum distance for ...
A: If what you mean by a plinth beam is a down-standing beam, then this is a more economical solution ...
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| Reinforce Concrete Thickness-Please Help | 11/14/2008 |
Q: I have a problem in which I know the forces on a suspended reinforced concrete slab and the width ...
A: The fonmulae are quite complex, so you will need to refer to guides such as BS 8110, or visit the ...
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| Structural design | 11/13/2008 |
Q: Is there any special procedure for calculation of shear stress in prestressed members(beams/slabs) ...
A: Flat slabs will impose less moments to columns than beams/slab systems when considering lateral ...
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| Reinforce Concrete Thickness-Please Help | 11/12/2008 |
Q: I have a problem in which I know the forces on a suspended reinforced concrete slab and the width ...
A: Yes, there are formulae for this, which you can see in the following website: ...
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| Structural design | 11/11/2008 |
Q: Is there any special procedure for calculation of shear stress in prestressed members(beams/slabs) ...
A: In principle there is no difference from normal RC design as the maximum permissible shear stress in ...
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| Dome Analysis | 11/11/2008 |
Q: I am trying to make a finite element model of a Dome on Etabs. I understand that Etabs do not accept ...
A: Yes there is a very simple way. Draw the curvature of the dome in elevation by a series of straight ...
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| RIBBED FLOOR CONSTRUCTION | 11/11/2008 |
Q: I NEED A DETAIL WRITE UP ON RIBBED FLOOR CONSTRUCTION WITH PICTURES AND REFERENCES.THANK YOU SIR
A: This is a very efficient form of slab construction which is alos called a Pan Joist system in the ...
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| raft foundation | 11/10/2008 |
Q: How would u construct a raft foundationin in soft clay for a large structure(5 storey)? What are the ...
A: The advantages of a raft foundation are that it distributes the loading from a building relatively ...
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| Regarding expansion joints | 11/9/2008 |
Q: I would be thankful to you, if you answer this few questions. 1. what is the maximum distance for ...
A: 1. For retaining wall at edge of property, you can make it work by incresing the base width (length) ...
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| Final Year Project | 11/8/2008 |
Q: I'll be starting my final year (undergraduate level) in civil engineering from Pakistan. I am ...
A: Good to hear that you are doing your final year. Here are my answers: 1. Yes, if you can find a ...
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| Regarding expansion joints | 11/8/2008 |
Q: I would be thankful to you, if you answer this few questions. 1. what is the maximum distance for ...
A: The distance for expansion joints is mainly determined by temperature changes and less so by seismic ...
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| design of strip foundations | 11/3/2008 |
Q: l am an undergraduate student in civil engineering. Al am currently on industrial training , l have ...
A: Ia m afraid that this still does not give me sufficient info, but based on my previous answer you ...
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| Notes On RCC Designs | 10/31/2008 |
Q: I am a fresh graduate in Civil Engineering. I am looking for some advice from experts. In this ...
A: Try the following website as it has a lot of useful advice/gudelines: For RC buildings, the first ...
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| design of stri foundations | 10/29/2008 |
Q: l am an undergraduate student in civil engineering. Al am currently on industrial training , l have ...
A: Without knowing the plan dimenisons, it is difficult to confirm figures, but on average a building ...
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| Costruction Engineer | 10/1/2008 |
Q: I'm a senior in high school that is doing a paper on construction engineering. If possible, I would ...
A: Well, it's a very exciting and fullfilling career, but not as highly-paid as other professions such ...
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| vertical hilty | 10/1/2008 |
Q: i had designed the shear wall ,but by mistake at site they have casted the shear wall with some ...
A: Depending on whether the bars are subjected to tension or compression, there will be different ...
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| material science | 9/30/2008 |
Q: Is the stress value indicates the capacity of the object? how shear force originates in structural ...
A: Stress is force divided by area- for example, if there is a beam member 2cm wide by 3cm deep, so the ...
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| sizing structural materials of a deck | 9/29/2008 |
Q: In order to use rainwater collected from my roof for household and garden purposes, I need to store ...
A: Due to liability reasons, I cannot perform a design for you but merely give advice. I would imagine ...
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| Structural engineering | 9/29/2008 |
Q: Sir, How the shear wall is useful for multistoried RCC buildings is it compulsory to provide that ...
A: That depends on the aspect ration of the building (height to minimum horizontal dimension) and also ...
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| SAFE | 9/27/2008 |
Q: Is there anyway I can receive foundation design examples which I can open in SAFE8? I dont get right ...
A: Yes, within SAFE there are several examples that you can review. Also, if you have any problems with ...
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| rubble packing | 9/20/2008 |
Q: what is the advantage of using dry rubble packing as a foundation will the building fall down if the ...
A: Rubble packing is normally used under ground bearing slabs and sometimes under foundations as well, ...
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| MS in civil Engineering | 9/19/2008 |
Q: i am in my final year now n i plan to do ms either in Construction management or structural ...
A: Manthan, Currently there are very good job opportunities in both fields so I would suggest you go ...
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| Civil Engineering questions | 9/16/2008 |
Q: my name is Joe Bittner and i am a student a Pius XI High School. We have to do a paper on a field of ...
A: Hi Cory, My job title is Director of Structures. The starting salary for a graduate in UK would be ...
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| Interview | 9/15/2008 |
Q: my name is Cory Briggs. I was recently assigned to write a paper on a career that I am interested ...
A: My job title is Director of Structures. The starting salary in UK would be around GBP 25,000 per ...
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| bending moment | 9/12/2008 |
Q: I am studying in second year Diploma civil engineering I wanted to know how to calculate bending ...
A: This is very basic structural analysis which you will need to read a book to understand. In brief,a ...
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| Steel deck + concrete diaphragm | 9/12/2008 |
Q: i'm from italy but i have to design with american codes. I have to design a diaphragm with corrugate ...
A: I think this is to do with the shear capacity of the lugs that are welded through the decking on to ...
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| Concrete specifications | 9/12/2008 |
Q: In gulf states when we said Grade 25 or Grade 35 concrete what does it mean? What will be the ratio ...
A: Grade 25 means the crushing cube strength of the concrete at 28 days is 25 N/mm2. Ditto for 35, 40, ...
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| Construction Methods | 7/29/2008 |
Q: How to design a slab of the following:Y=4000mm,X=8000mm using reinforcement of Y12-250c/c-B1-01.What ...
A: This sounds like a slab of width 4m and length 8m, with rebar of 12mm diameter (Y means high-yield ...
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| Inclined columns | 7/29/2008 |
Q: I WANT TO KNOW HOW TO DESIGN INCLINED COLUMNS
A: They can be designed as vertical columns but taking care to design for the additional moments due to ...
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| E TABS | 7/28/2008 |
Q: What are the Pros and Cons of using E TABS to design a CONCRETE STRUCTURE ?
A: This is a very general question and really depends on the type, size and complexity of the ...
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| Compaction and compaction eqpment | 7/27/2008 |
Q: hello sir what is compaction and various compaction masonry in civil engineering?
A: Compaction requires different machinery for different materials- e.g. for concrete you need a ...
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| bidges | 7/21/2008 |
Q: Archad, what makes Cable-stayed bridges safer than suspension bridges in case of hurricanes and ...
A: I have not really thought of this before but I reckon it is because in a suspension brigde there are ...
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| cracks in structures | 7/20/2008 |
Q: I am a quality control engineer and I notice we keep getting a lot of cracks in our box culverts and ...
A: This could be due to several reasons, such as very thick or very thin concrete cover to rebar, outer ...
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| Demolition of Existing Slab. | 7/19/2008 |
Q: I need to demolish a part of a 6" concrete pitch roof slab due to addition of a room on the terrace, ...
A: You have not given me sufficielt details to enable me to advise you properly. However, assuming that ...
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| timber use in bridge | 7/18/2008 |
Q: Arshad, i have a college assignment looking at an extreme scenario where an 80 m bridge over a ...
A: You have not given me enough info to advise properly, but for an 80m free span bridge, you will ...
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| civil engineering | 7/16/2008 |
Q: Archad, what's the way to be an excellent civil engineer comparing with the recent world life which ...
A: That is a good question. The way to assess engineering excellence is to design and build structures ...
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| fc and fcu | 7/15/2008 |
Q: What's the difference between f'c and fcu? How do I convert f'c to fcu? Thanks ANSWER: Hi Ben, ...
A: On reflection, fc could mean cylinder crushing strength (usually in USA) and fcu could be a cube ...
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| Diaphram action of metal deck slab | 7/14/2008 |
Q: In continuation to your reply to Adam for the above subject i would like to add further question for ...
A: 1. No, usually the gravity loading rebar is different from the diaphragm rebar, although the two can ...
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| Civil Engineering | 7/12/2008 |
Q: What are the career opportunities do I have As an civil engineer with MBA (Specialization in ...
A: Ashish, That depends on what stage of your career you are at. If it is at the beginning, you little ...
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| grade slab for mobile racks | 7/12/2008 |
Q: how we can design the grade for mobile racks of heavy load for industrial building, it would be ...
A: This would be considered a structural slab on grade, and the design needs to take account of the ...
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| Flat slab design | 7/10/2008 |
Q: Respected sir, I, vijay, am doing my masters in structural engineering at IIT Kanpur, India. ...
A: The most critical aspects of designing flat slabs are: 1. Punching shear around columns 2. ...
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| how to start for a job after a long break | 7/7/2008 |
Q: i am 2004 pass out.i got married when i was in my final semester.my husband worked at Hindalco ...
A: Four years is not too long, so long as you have been keeping in touch with engineering. There are ...
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| Column Reinforcement | 7/7/2008 |
Q: Reinforcement bar of column at 1st floor cutted by mistake,beam and screed over hollow core slab ...
A: The ebst solution for this si to expose about 100mm of the column bars and connect them to starter ...
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| culvert | 7/7/2008 |
Q: I am trying to design a 2 span bridge that has the shape of a box culvert as per american code ACI ...
A: It's dificult to send/do designs via this medium, but you can either take guidance from the famous ...
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| Masonry Reinforcement | 7/6/2008 |
Q: Good Day, Sir! I'm a new Engineer (from the Philippines) here in Bahrain. I just want to ask, what ...
A: In that case you need to have a base plate at the bottom of the steel column and anchor that into ...
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| Masonry Reinforcement | 7/6/2008 |
Q: Good Day, Sir! I'm a new Engineer (from the Philippines) here in Bahrain. I just want to ask, what ...
A: Neil, As Bahrain is not a seismic zone, there are no specific requirements for masonry rebar, ...
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| Civil Engineering or Archictural | 7/1/2008 |
Q: I am MansoorKhalid sending you this email from Peshawar Pakistan. I had finished my first year ...
A: From what you are saying, you should go for a course in civil engineering and then you can later ...
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| load bearing capacity of slab | 7/1/2008 |
Q: salam, sir i have asked a question already about load bearing capacity of a slab. my question was, ...
A: This is a bit difficuolt to assess accurately, but based on the info you have given I would say that ...
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| Structural Engineering. | 6/30/2008 |
Q: I would like to know is it possible for me to connect steel joist to an existing RCC beam,if so what ...
A: Yes, you can do that by using a flange/base plate at the end of the steel member and using drilled ...
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| chemistry in civil eng. | 6/29/2008 |
Q: Archad, well why does a civil engineer study courses connected in chemistry? well don't worry about ...
A: Chemistry is useful for civil engineering because it helps to understand the materials and how to ...
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| slab load bearing capacity | 6/29/2008 |
Q: we have a floor thickness 3 inches of concrete(1:2:4) with .25 inch diameter steel reinforcement @ ...
A: This is a bit difficuolt to assess accurately, but based on the info you have given I would say that ...
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| Eccentric Footing Analysis | 6/27/2008 |
Q: Sir, I am a Structual Engg. student. My project is going on this topic. i want to know the analysis ...
A: By adding in the triangular element all you will do is help in reducing punching shear- your ...
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| rods in bridges | 6/26/2008 |
Q: Archad, when a bridge is made over a river, the bridge stands over an arc made of specific elements, ...
A: I am sorry, but your question is still not clear- what do you mean by rod? Do you mean a beam or are ...
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| rods in bridges | 6/25/2008 |
Q: Archad, when a bridge is made over a river, the bridge stands over an arc made of specific elements, ...
A: I do not quite understand your question, but in principle so long as the arch bridge has good ...
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| column load support | 6/25/2008 |
Q: hai arshad khan,can u brief me how much load can support by column (300X300X1000MM ht).tq
A: The formula for this (assuming axial load only) is 0.35*Fcu*300*300+0.87*fy*As, where fcu is cube ...
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| RCC LIFT SHAFT, Circular Stairs | 6/24/2008 |
Q: I have completed my civil engineering and now got a job as a structural designer. I would like to ...
A: You have too many questions, most of which you should ask your mentor at work to help you with. ...
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| beam-column connection | 6/24/2008 |
Q: Please let me know the connection details of RCC beam to inclined column details, as the bars for ...
A: In this case, it is best to take the column bars to the top face of the beam and bend them along the ...
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| deflected bondeck slab | 6/14/2008 |
Q: GHi Mr Arshad A bondek floor slab has deflected excessively due to the absence of propping during ...
A: As this is a proprietory product, you should really seek advice from the manufacturers. However, in ...
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| rods in the buildings | 6/14/2008 |
Q: every buildings has rods, these rods represent the normal reaction of the ground against the weight ...
A: If you are talking about reinforced concrete buildings (not steel buildings), then yes there so so ...
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| pile cap | 6/14/2008 |
Q: I work in a consultancy firm in kolkata, india. My question is that is it possible to cast a two ...
A: This is difficult to say without knowing the piles capacity for lateral bending and the column loads ...
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| Timber Design | 6/12/2008 |
Q: I'd like to know which standards are used in timber design, preferably for timber that's available ...
A: I do not know about Uganda, but in Kenya the Ministry of Works has a local code that follows the ...
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| design slab | 6/7/2008 |
Q: how to design a slab ,rcc members.i want pursue my career as strucural engineer,so please guide me
A: This is quite a complex subject, so you will need to study some books, but basically you design as ...
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| skyscrapers | 6/5/2008 |
Q: welcome to your returning. well I spend many days waiting you :D well every skyscraper must have ...
A: I am not sure I quite understand your question, but basically hihsie buildings are designed to ...
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| Span & PSF rating for 6" concrete on deck form and I-beams | 5/22/2008 |
Q: I need to know the maximum span 22 gauge 1.5C conform deck steel can handle with a 6" total depth ...
A: I am not familiar with Conform decking (must be a US product), but you need to consult their ...
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| conection B/w column & Slab | 5/21/2008 |
Q: I want to know how we do connection b/w column reinforcement and Slab reinforcement.
A: Normally this connection is via beams that span into columns, but if you are asking about flat ...
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| Relevant to steel | 5/20/2008 |
Q: I want u to tell me the difference between Hot rolled and cold twisted Steel bars, what is ...
A: Hot rolled mild steel has lower rebar yield strength (250 N/mm2) while cold twisted HY rbar has 460 ...
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| Diaphragm shear transfer in concrete slabs | 5/20/2008 |
Q: I have a question regarding diaphragm shear in concrete slabs. I would like to ask you how this ...
A: The principles for diapgram forces in RC slab are the same for what you describe for steel beams ...
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| RE: CONNECTION BETWEEN R.C STUMP AND HARD WOOD COLUMN. | 5/19/2008 |
Q: HAI ARSHAD KHAN I WANT TO ASK U ABOUT CONNECTION BETWEEN R.C STUMP (300mmx300mmx1000MM(h))AND WOOD ...
A: The best way to do this connection is to design a steel cap at the bottom end of the wood column ...
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| building science | 5/18/2008 |
Q: what procedures must be followed when calculate a beams bending moment ,UDL and where in the ...
A: For UDL, the bending moment is a simply-supported beam is WL2/8 where W is the total applied +self ...
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| concentrated loads on an elevated slab | 5/17/2008 |
Q: I have an elevated slab supported by open web steel joists on 18" centers. I need to install two ...
A: Without knowing the spacing of the 6 feet it is difficult to give proper advice, but as a guide the ...
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| cracks in footing | 5/10/2008 |
Q: I have observe some cracks not too much deep in footing near the dowels of column reinforcement. I ...
A: You have not given me enough details to make a proper assessment but if they are minor surface ...
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| post tension slab | 5/6/2008 |
Q: i need to check for opening in post tesion slab.slab in 7.5*7.5 m. opening size is about 1m*.6m this ...
A: Although you are designing columns as pinned, in reality they will attract moments from the slab due ...
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| Concrete slabe on grade | 5/5/2008 |
Q: Existing 5" concrete slab with no. 4 bars at 24" o/c located at med depth. What point load can it ...
A: This is very difficult to assess as it depends on the quality and compaction of the sub-grade and ...
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| structural engg | 5/5/2008 |
Q: i am constructed steel bridge over a small nalla & span of bridge is 50 feet & one side rcc paradi & ...
A: I am sorry to say that you have not given me enough information and in any case I do not offer a ...
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| SILO | 5/4/2008 |
Q: i want to design metal silo foundation, silo is 32m dia & 23 m height & its grain capacity is 8000 ...
A: If the RC wall is also subjected to grain pressure then you can design it in hoop stress, with the ...
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| SILO | 5/4/2008 |
Q: i want to design metal silo foundation, silo is 32m dia & 23 m height & its grain capacity is 8000 ...
A: Much as I would like to help you, I cannot picture what you mean about the shear wall and stiffners. ...
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| what is honey combing | 5/3/2008 |
Q: sir what is exactly this honey combing,and where it will occur generally,and even what is ...
A: Honey combing is what happens when concrete is not compacted properly and voids form between the ...
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| assignment | 5/2/2008 |
Q: the role of civil engineer in the construction company
A: I have been asked similar questions before, so if you do not mind I will cut-and-paste the Q & A: ...
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| rcc beam | 4/25/2008 |
Q: at one of our existing single storey car wash building, a contractor has cut concrete from the top ...
A: This is a bit difficult to say for sure, without looking at the drawings and loading, but in general ...
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| Rubble packing | 4/12/2008 |
Q: why is rubble packing done in foundation of footings?does it increase the load bearing capacity of ...
A: This is used to basically even out any soft-spots or localised depressions caused by the ...
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| Design of Lift Well | 3/30/2008 |
Q: I want to design a lift well in a three storey hospital building. Size of the well is (7ft. x 7ft.) ...
A: This is a very difficult question to answer, as a lot depends on what else is spanning on to the ...
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| STAAD analysis | 3/29/2008 |
Q: WE are in our final year B.Tech Civil... We are doing a project i.e Analysis and Design of 3 storey ...
A: Syed, when you do sub-frame anaysis, the total column loads have to be added separately by hand or ...
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| STAAD analysis | 3/21/2008 |
Q: WE are in our final year B.Tech Civil... We are doing a project i.e Analysis and Design of 3 storey ...
A: This is difficult to explain over this forum- I suggest you refer to a textbook on structural ...
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| STAAD analysis | 3/21/2008 |
Q: WE are in our final year B.Tech Civil... We are doing a project i.e Analysis and Design of 3 storey ...
A: Syed, Yes, footing needs to be designed for bending moment, whether on not it is on rock- if column ...
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| STAAD analysis | 3/20/2008 |
Q: WE are in our final year B.Tech Civil... We are doing a project i.e Analysis and Design of 3 storey ...
A: This is a difficult subject to mentor over this forum, but here are some answers: 1. Loading is ...
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| etabs beam modeling | 3/14/2008 |
Q: can etabs model beams spanning from one story to another ie. inclined beams? why is it the line type ...
A: Yes, ETABS can do inclined beams and it is just a default description that anything inclined is ...
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| excavations | 2/28/2008 |
Q: I am interviewing with a company that does large scale land reclaimations and excavations. What ...
A: I am not an expert on this, but basically you should be confident in your responses and do not try ...
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| Concrete classes | 2/14/2008 |
Q: Please explain to me the various ratios of concrete.there is class 15 class 20 class 25 and class 30 ...
A: Yes, you can usually get classes from 10 N/mm2 in increments of 5 to anything upto 100 N/mm2 or ...
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| Using steel plate to spread concentrated loadod | 2/13/2008 |
Q: Arshad, An r.c.slab of an exhibition hall is designed with an imposed live load of 10 kN/m2. A ...
A: Yes, that should do the trick, assuming that the base plate is stiff enought to spread the laoding ...
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| RCC designing | 2/2/2008 |
Q: what is the bending moment
A: This is very basic- it is the moment caused in a beam (or column or wall), due to external loading ...
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| flat slab | 2/1/2008 |
Q: I am Deepthi a structural engineer, I wanted to know if a flat slab can be analysed using STAAD. If ...
A: STAAD is not very good for flat slab design, but you can get approximate results by meshing the ...
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| Bearing shear wall system | 2/1/2008 |
Q: I am designing a 12 story concrete building with shear walls, the frame system is bearing wall ...
A: Depending on the detailing, the beams can be fixed or pinned or partially relaesed and ETABS will do ...
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| Raft foundations | 1/20/2008 |
Q: Khan, I would like to know how to calculate the thickness of the raft I require for a single storey ...
A: The best way for this is as follows: 1. Work out the total load down, and divide by the area of the ...
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| Mix Design | 1/19/2008 |
Q: Please let me know the actual mix design with one problem practiced in site
A: This is quite a complex issue, as mix design depends on the class of concrete, the aggrrgate type ...
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| Civil Engineering | 1/17/2008 |
Q: This question is like a test question. You have three houses in a row, above the three houses their ...
A: This is a mind-bender puzzle rather than civil engineering and is difficult for me to answer without ...
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| Maximum Distance Between Concrete Steel Post | 1/6/2008 |
Q: What is the Maximum Distance Between Concrete Steel Post and what size of reenforced steel bar ...
A: Your question is confusing- are you talking about concrete posts or steel posts? In any case, I ...
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| Concrete bridges | 12/26/2007 |
Q: Mr. khan can you tell me about the different kinds of concrete bridge?
A: There are many types of concrete bridges, starting from a simple reinforced beam-and-slab for short ...
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| civil engineering concrete technology | 12/22/2007 |
Q: please tell me sir, what is 63, 53, 33 grade cements?why is indicated?
A: This is related to the compressive strength at 28 days age, in Mpa, and is a function of how finely ...
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| Design small column & slab | 12/16/2007 |
Q: My qualification is Technical Diploma in Civil Am working as Auto CAD Designer I am interested to ...
A: This is a very general question, so I will reply as follows: 1. Decide on the best material to use ...
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| Existing Beam- Block Roof to support SIL = 5 Kn/m2 | 12/10/2007 |
Q: Respected Dear Arshad Khan, i was searching some solution and luckily found your contact through ...
A: Much as I would like to help you, I cannot do such assignments over this website- firstly because ...
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| virendeel truss | 12/9/2007 |
Q: I am an Iranian student.I really need some guidance for my design project. I want to use Virendeel ...
A: Basically you work out the total bending moment and shear, assuming that it is a solid beam, then ...
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| Vierendeel Truss | 12/9/2007 |
Q: I wonder if you could provide me with detailed method of analysis of a vierendeel Truss (No ...
A: Basically you work out the total bending moment and shear, assuming that it is a solid beam, then ...
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| Seeking further explanations to your answer to Jarkas | 12/8/2007 |
Q: Arshad, with regard to the answer you gave to Mr. Jarkas concerning R C Industrial Facilities Design ...
A: Sorry for this late reply- I was travelling. I cannot remember the question/answer you refer to, ...
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| bridges | 12/7/2007 |
Q: I know that this may not be your "expertise." However, if I could, I would love to still get your ...
A: Sorry for this late reply- I was travelling. Your idea of using a warren truss is good- just make ...
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| Building Design | 12/1/2007 |
Q: salam brother, I am a civil engineer practicing in site. I need to build a house, but i have not ...
A: This is a very general question, so I will reply as follows: 1. Decide on the best material to use ...
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| Design of slab with opening | 12/1/2007 |
Q: I want to design a solid slab of size 2m * 2m, with an opening of size 0.6m* 0.6m , at the corner of ...
A: Assuming that this slab is supported along all 4 sides, then I would design the slab as two strips ...
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| ETABS Period/Rigid Diaphragm | 11/30/2007 |
Q: I built a model of a 5 story building with slabs at each level, 2 elevator shafts and a continuous ...
A: You are right, in that the period should be 0.5-1.0 second. I acn only suggest 2 possible problems: ...
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| Structural Mechanics | 11/30/2007 |
Q: The distance between the support is 440mm and between left support and cut position is 300mm. Thw ...
A: This sounds like a homework question and I would not be doing you a favour by giving you the answer. ...
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| Civil engineering | 11/25/2007 |
Q: Respected Mr.Khan,In the case of Ribbed slab with hidden beams & column as supporting structure, ...
A: If by hidden beams you mean flush beams, then you can still take full frame action and moment ...
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| boundary element of shear wall in etabs | 11/23/2007 |
Q: In ACI 318-99 (also in 2002 and 2005 codes), necessity of boundary elements in concrete shear walls ...
A: I am not sure why, but have you tried: Go to the Options > Preferences > Concrete Frame Design ...
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| Bridge Engineer | 11/17/2007 |
Q: Mr. Expert i have designed an isolated footing for a circular bridge pier (3 m diameter) resting on ...
A: For a 3m dia pier, a 12.5 m base seems excessive. For it to engage uniform pressure, it will need to ...
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| Silo Foundation | 11/16/2007 |
Q: Is 1 kg / sq.cm. a very safe soil loading capacity as a thumb rule when the area has many warehouses ...
A: Well, it the diameter is only 3m, then you may only need a strip footing of 1.0m wide, depending on ...
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| Silo Foundation | 11/10/2007 |
Q: Is 1 kg / sq.cm. a very safe soil loading capacity as a thumb rule when the area has many warehouses ...
A: This very much depends on the ground conditions, as in some cases to limit settlement you may have ...
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| concentrated load on flat slab | 11/9/2007 |
Q: Can a suspended flat slab designed with a udl of 20 kN/m2 take concentrated loads of 500 kN placed ...
A: Definitely not, as that would exceed the safe load by a factor of around 25!! If you meant 5 kN ...
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| carbon steel tank.. | 10/29/2007 |
Q: The total weight of the upper tank is 220 Tonnes. Once it is lifted and placed on the base i need to ...
A: Faisal, This is not easy to do without looking at the drawings, etc. Just use basic principles- ...
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| carbon steel tank.. | 10/29/2007 |
Q: The total weight of the upper tank is 220 Tonnes. Once it is lifted and placed on the base i need to ...
A: If the tank is so heavy, then all the clamps are doing is to hold the tank from sliding ...
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| RC Wall Effective Height | 10/29/2007 |
Q: Assume a house has a single story 20 foot high by 16 foot wide RC wall (within a moment frame), and ...
A: If the mid-height beam is 16 inches in horizontal dimension, to work against the wind loading, then ...
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| Faculty Project: Metallic construction over concrete ones. | 10/28/2007 |
Q: I am a Civil Engineering student, and I have to make a small presentation of a Metallic structure ...
A: A simple example of where a steel structure is better than concrete is for long-span trusses or ...
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| scholl project 6 grade | 10/20/2007 |
Q: i need exemples how i use math in civil engeneering career foe my school project. thank you
A: Here are some examples: 1. You can work out the weight of materials, such as a wall sitting on a ...
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| math in engineering | 10/20/2007 |
Q: please give me three examples where the applicaion of mathematics is used as a tool in solving ...
A: Well, you can use maths to: 1. Calculate the weight of materials on to structures like bridges. 2. ...
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| from sri lanka | 10/19/2007 |
Q: please tell slabs types? i want to method statement for single storey building. step by step. ...
A: The different slab types are: solid RC two-way spanning, solid RC one-way spanning, ribbed slabs, ...
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| foundation design | 10/19/2007 |
Q: I am a graduate engineer and have been tasked with designing the foundations for a two-storey ...
A: Yes, you should take th effects of wind laoding into account- basically you can take additional ...
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| HELP!!!- Bridges Research | 10/18/2007 |
Q: Tell me what to find out when doing a research paper on bridges for a science fair project?
A: I would suggest you look at following aspscts: 1. Diferent materials used- e.g. steel, timber, ...
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| Beam design | 10/16/2007 |
Q: I am a student of architecture. can you give me the steps and formula to design a simple rectangular ...
A: Basically you divide teh span by 15 to 20 (depending on the loading- the greater the loading, use ...
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| Help required | 10/16/2007 |
Q: I am santosh structural engineering student I wanted your help to know certain things. I wanted to ...
A: Go to the Research engineers website which has a lot of data on STAAD. You can visit the RCC website ...
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| on rcc beam | 10/15/2007 |
Q: in singly reinforced beams bars are placing in two layer with the help of spacial bar,but ...
A: The reason that the spacer bars are not taken into account is becuase they are not continuous in the ...
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| hollow concrete block | 10/5/2007 |
Q: how do we ascertain design load of a building made with hollow block concrete?what is the density of ...
A: You get the density either from the manufacturer's brochure or by weighing the units. The design ...
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| I need these quick questions answered! by tomorrow | 10/5/2007 |
Q: Hey Arshad. I'm Brent Gehring and I go to Severna Park High School. I need these questions answered ...
A: Well, it's a very exciting and fullfilling career, but not as highly-paid as other professions such ...
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| concrete design | 9/27/2007 |
Q: sir, How to repair/strengthen a isolated footing laid with M15 grade concrete instead of M20 grade ...
A: You can roughen up the top and side surfaces, drill and grout in some T10 dowels at say 300mm ...
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| pile cap design | 9/26/2007 |
Q: i am working in consultant office in Dubai , i want to ask for the design of the following element : ...
A: You need to refer to BS 8110 and BS 8004 for design guidelines. Also check out this website: ...
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| abt. axis | 9/26/2007 |
Q: sir, could you kindly explain to me the difference between stong axis,weak axis,major axis,minor ...
A: Both sets of termionology mean the same. The major axis refers to the deeper section of a beam or ...
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| Etabs results | 9/17/2007 |
Q: why (in ETABS 9.0) the sum of moments arises in the bases of shear walls do not equal the total ...
A: This depends on how the piers atre defined- basically the moment will be a summation of the node ...
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| roof slab reinforment details- | 9/15/2007 |
Q: Mr Khan - Pl. give yr opinion for the following: 1st floor roof: 1) Room size: 11.5ft x 22ft -2 ...
A: I do not do designs over this medium, so you should get a qualified engineer to do so for you. ...
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| What should be the size of columns for 2000square feet slab | 9/14/2007 |
Q: I am going to construct 2000 Square feet slab with total 26 columns.So what should be the ...
A: This is very difficult to answer as you have not indicated the imposed load on the slab, not the ...
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| soil bearing capacity? | 9/14/2007 |
Q: how to find the bearing capasity of the soil? can u give me the design prcedure.......step by step.
A: For this, depending on the size of the project, you need to do detailed soils investigations that ...
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| depth of foundation | 9/13/2007 |
Q: how can we decide ,depth for foundation as a civil engg. in the site one more question sir...its a ...
A: Normally the bottom of a foundation is set at a minimum depth of around 0.6m to 0.8m, where the ...
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| Questions | 9/12/2007 |
Q: 1. Do you like your job? 2. What kind of projects do you work on? 3. Does your job require working ...
A: These are far too many questions, but: Well, it's a very exciting and fullfilling career, but not ...
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| tuff stone masonry | 9/11/2007 |
Q: I'm wondering what the compressive strength of tuff stone is. I know this is used a lot in ...
A: That depends on the quality of the stone, but anwhere between 2 and 5 N/mm2 would be a crushing ...
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| Civil Engineering Info. Needed | 9/10/2007 |
Q: my name is Elizabeth and I attend River Hill High School in Maryland. I am researching civil ...
A: Well, it's a very exciting and fullfilling career, but not as highly-paid as other professions such ...
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| civil | 9/8/2007 |
Q: I have a house, where there is a peculiar problem of water ingress during monsoon seasons from ...
A: Raju, Looks like you do not have a damp-prrof course. You can either break out the slab and install ...
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| Mezzanine Support Columns | 9/8/2007 |
Q: Mr. Khan, I am planning to build a 1000 sqft wood framed mezzanine in our warehouse we have ...
A: This is a bit difficult to answer without knowing the foundation conditons. If the slab can take 500 ...
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| High school essay questions | 9/7/2007 |
Q: 1. Do you have any high school courses to recommend before going to college for engineering? ...
A: These are far too many questions for me, but: Well, it's a very exciting and fullfilling career, ...
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| civil | 9/5/2007 |
Q: Why putting reinforcement for slab, why do we put steel in both directions. ANSWER: Hi Raju, This ...
A: This is difficult for me to answer without further details and in any case I do not do full designs ...
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| civil | 9/1/2007 |
Q: Why putting reinforcement for slab, why do we put steel in both directions.
A: This is for 2 reasons: 1. To prevent shrinkage cracks in the cross-direction. 2. When you load a ...
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| ribbed(hollow block) slab | 8/31/2007 |
Q: we are constructing a cast in situ ribbed (hollow block)slab in ethiopia for an occupation of a ...
A: Again, without knowing the actual ribe tension rebar and the deflection criteria, it is difficult to ...
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| raft design | 8/29/2007 |
Q: I would like to you to help me solve the following problem. The soil safe bearing capacity of a ...
A: I am sorry but I cannot offer full design services over this medium. As a guide, use 1 m thick raft ...
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| english | 8/24/2007 |
Q: Sir I am HAPPY TO SEE YOUR ANSWER why horizontal cracks in top floor building. & how to repair I am ...
A: This is probably caused by: 1. Shrinkage cracks in blockwork 2. Lack of movement compatibility ...
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| Honey Combing In Concrete | 8/23/2007 |
Q: We have got honey comb in the concrete of grade M40 used for column member(size of column- 800x800). ...
A: Honeycombing to a depth of 25mm is not very serious so you can simply grout this up and the column ...
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| interview. | 8/21/2007 |
Q: HEY!!! my name is Brittany Feeback I am 16&&Go to Trigg county High school. I would like to be a ...
A: Hey, Brittany!!!! Well, it's a very exciting and fullfilling career, but not as highly-paid as ...
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| concrete slab strength | 8/21/2007 |
Q: I am building a concrete slab that will cross a creek in my backyard, the creek has a 10' gap and ...
A: This is not an easy question to answer as you have not given full details- i.e. weight of tractor, ...
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| corbonation | 8/12/2007 |
Q: please let me know the reasons of carbonation in Reinforced Cement Concrete ANSWER: Hi Bhupinder, ...
A: The main source of carbonation is exposure to the atmosphere and then with the additional presence ...
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| corbonation | 8/11/2007 |
Q: please let me know the reasons of carbonation in Reinforced Cement Concrete
A: Carbonation in concrete is the slow process of carbon dioxide penetrating the concrete cover of RC ...
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| criteria for tempeareture analysis of slab in rcc building | 8/10/2007 |
Q: pls provide some guidline & references to decide whether temp anylisis of slab is require or not in ...
A: If basement is subjected to daily temperature variations then you will need movement joints- these ...
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| Flat slab analysis using SAFE8 | 8/8/2007 |
Q: i am currently analysing flat slab of a 20 storey tower using safe, input of which is imported from ...
A: For a tall building, you should select the third option, as that will take loads due to gravity ...
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| criteria for tempeareture analysis of slab in rcc building | 8/7/2007 |
Q: pls provide some guidline & references to decide whether temp anylisis of slab is require or not in ...
A: The 45-50m can be avoided if the structure is below ground (basements), otherwise you need to do a ...
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| design of slab | 8/6/2007 |
Q: Room size is 3.00 x 7.04 & outer size is 3.46 x 7.50 M. Hence what will be the thickness of slab & ...
A: I cannot design the slab for you over this medium- in any case that depends on the applied loading. ...
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| PIPERACK DESIGN | 8/5/2007 |
Q: I am civil engineer,but i have no idea about design of piperacks,i was asked to design piperack,will ...
A: Pipe rack design is basically supports (usually with structural steelwork) for supporting pipework ...
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| type of supports | 6/18/2007 |
Q: Sir,Differentiate types of Supports and give examples of each support that when it is used
A: Santosh, This sounds like a homework question? Anyway: 1. Simply supported- when a beam or slab ...
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| RCC slab | 6/16/2007 |
Q: What is the difference between simply supported slab & Continuous slab?For example ,I will design ...
A: Yes, you are correct- the slab can be designed as continous over the central supporting beam or ...
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| rcc design | 6/11/2007 |
Q: i have a slab of thickness 150mm and clear span of slab is 3.8 m m-25 mix we want put two load at ...
A: I do not do designs over this forum due to liability reasons, but you can work out the bending ...
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| Foundations | 6/7/2007 |
Q: What is the main difference between strip foundation and raft foundation? Do strip foundations ...
A: A matt foundation is the same as a raft- different name only. A raft works by bending along both ...
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| civil engineering | 6/3/2007 |
Q: How the alignment is done for the columns above a floor,to check whether it is ...
A: The timing for de-shuttering depends on the concrete strength, the spans and the curing, but ...
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| Foundation for lift well for G 2 building | 6/2/2007 |
Q: I am a structural engineer in Eritrea. i am designing recently a 2.1x2.1m lift well for G+2 concrete ...
A: For this, just consider the total vertical load down the wall per metre run and design a strip ...
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| steel bracket dimension | 6/2/2007 |
Q: i wanted to know:1) how we arrive at the dimensions of a steel bracket ,say,which is supporting a ...
A: The sizing is dependant on the shear capacity of the vertical section to resist the bolts reaction ...
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| Four and a half inches RCC slab | 6/2/2007 |
Q: I want to have a 4.5 inches RCC slab (Roof), area 8 feet by 22 feet supported by 10 feet high, walls ...
A: You have not indicated roof loading, but assuming it is minimal, this should be OK with proper rebar ...
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| civil engineering | 5/30/2007 |
Q: How the alignment is done for the columns above a floor,to check whether it is ...
A: For verticality you can use a simple pmumb-bob, or a theodolite. For horizontal location you can use ...
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| U/G pipes | 5/28/2007 |
Q: Sir, How to calculate pipe thickness of underground pipes? is there any formula given any where? I ...
A: Visit the following websites that will guide you: ...
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| civil/piping | 5/26/2007 |
Q: Sir, I am a piping engineer and wants to give piping loads to civil dept. for designing a piperack ...
A: Just work out the self weight and weight of contents per metre run and the racking can be designed ...
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| raft foundation | 5/24/2007 |
Q: I am shridhar kadam student of VJTI. I Want detail infor mation about RAFT FOUNDATION.So plese send ...
A: Your question is not quite detailed enough for me to respond properly, but if you are asking about ...
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| Charterd ENGG exam UK | 5/20/2007 |
Q: i m shafaat srcutural engg with 13 years exp working in Dubai i got offer from London Uk and i m ...
A: In order to become a Chartered Engineer via the ICE or IStructE, you need to have a good degree and ...
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| engineering | 5/20/2007 |
Q: How many seismic zone we know give me detail information
A: There are several seismic zones in accordance with UBC 97- starting with zone 0, 1, 2A, 2B, 3, 4, 5, ...
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| stress | 5/11/2007 |
Q: i heard a term " cylinder stress" can you tell me about this?
A: Possibly this is the same as what I know as hoop stress, which is the force/divided by cross ...
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| raft foundation design | 5/4/2007 |
Q: Arshad I am an undergraduate student studying civil engineering in the UK.I have a task I'd like ...
A: This is a problem of soil-structure interaction, whereby the strength/thickness of the slab is ...
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| tech | 5/4/2007 |
Q: i find it really hard to connect the theory of over reinforced concrete to the practical situation. ...
A: So long as you follow the code requirements for slice lengths (especially for bundled bars), then ...
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| tech | 5/4/2007 |
Q: i find it really hard to connect the theory of over reinforced concrete to the practical situation. ...
A: Early striking is mainly for re-use of shutters and follow-on trades. There is no problem with ...
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| tech | 5/4/2007 |
Q: i find it really hard to connect the theory of over reinforced concrete to the practical situation. ...
A: It's not just for corrosion protection, but also for bond and fire protection- hence we need more ...
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| tech | 5/3/2007 |
Q: i find it really hard to connect the theory of over reinforced concrete to the practical situation. ...
A: Yes, if you over-reinforce say the bottom of a simply supported beam, and then keep increasing the ...
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| splicing | 5/3/2007 |
Q: a continuous column does not have the starter bars at the right position for the next level(but ...
A: ..., For circular columns you do not need cranks- just lay the rebar adjacent to the starters. You ...
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| rings on columns /stirrups on beams | 5/3/2007 |
Q: 1. for columns , which is better - to provide rings horizontally or spirally? 2. for beams , i ...
A: Basically, shear cracks in beams are at 45-60 degrees angle to horizontal, so an inclined bar will ...
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| rings on columns /stirrups on beams | 5/2/2007 |
Q: 1. for columns , which is better - to provide rings horizontally or spirally? 2. for beams , i ...
A: .., 1. Rings horizontally are better for control of spacing and location of main rebar. 2. They ...
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| Mehtod Statement | 4/27/2007 |
Q: How would you calculate the area of a pad foundation to loaded column, where the total internal load ...
A: This is easy- just divide the total vertical load (730 kN) with the allowable bearing pressure, so ...
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| Temperature effects on Tall Buildings | 4/25/2007 |
Q: Could I analyze a tall building in United Arab of Emirates for Temperature Effects using ETABS ...
A: Answers: 1. For final state, take interiors as 20 degC and exterior 30-50 deg C depending on amount ...
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| Temperature effects on Tall Buildings | 4/24/2007 |
Q: Could I analyze a tall building in United Arab of Emirates for Temperature Effects using ETABS ...
A: 1. Yes. 2. Yes, and les to interior members, so you will get differential elongation. 3. You will ...
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| Temperature effects on Tall Buildings | 4/23/2007 |
Q: Could I analyze a tall building in United Arab of Emirates for Temperature Effects using ETABS ...
A: Yes you can, but you need to know the cladding/insulation details and how hot the exterior can get- ...
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| strip foundation design | 4/23/2007 |
Q: How would you calculate the minimum width and depth required for a tradtional strip foundation for a ...
A: That's simple- divide 45 by 80 and you have the minimum width of the strip, i.e. 565mm. However, I ...
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| Calculations | 4/20/2007 |
Q: What is the full calculations for a petrol station using a suitable foundation with an internal and ...
A: I am sorry but I cannot do sketches over this forum. For the column foundations, you need to know ...
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| Project Engineer | 4/19/2007 |
Q: Please help me with answers to the following: What is Project engineering all about 1.what are the ...
A: A project engineer's main duties are to understand the client's requirements (brief) and to ensure ...
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| Quotations | 4/18/2007 |
Q: What does zack mean in a quation sheet? There are different areas of building, including one long ...
A: Well, that's a new one for me too. I suggest you seek clarification fom the client. Maybe it is a ...
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| d.o.s | 4/13/2007 |
Q: why the circular tank of large capacity are most economical than other shape...????
A: That is because steel is very efficient in tension (rather than bending), so by using a circular ...
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| wind load | 4/12/2007 |
Q: I have tank of 5 ton dead load and 400 barrel water capacity, ares where wind load 0.87 kpa, ...
A: This is a bit difficult to explain over this forum, but basically you apply the pressure along one ...
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| honeycombing in concrete | 4/12/2007 |
Q: Kindly let me know the acceptance criteria on subject matter. Regds PNM
A: This depends on the location and extent. Usually, most honeycombing, if it is just within 10-30mm of ...
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| ETABS | 4/11/2007 |
Q: i´m a new user of the program etabs. MyIs it possible to make the shear design based on provided ...
A: I am new to ETABS as well, but I believe it does take main rebar into account for shear design. I ...
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| mat foundation | 4/11/2007 |
Q: the whole consideration for design mat foundation for tall building ANSWER: Dear Farhana, Your ...
A: I am sorry, but I cannot carry out full designs over this forum- I just answer specific questions ...
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| mat foundation | 4/10/2007 |
Q: the whole consideration for design mat foundation for tall building
A: Your question is not quite detailed enough for me to respond properly, but if you are asking about ...
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| Wind Loads in Uganda | 3/31/2007 |
Q: Arshad, What is the Basic Wind Speed that one needs to consider for the design of Structures in ...
A: Srinivas, I am afriad I am a bit out of touch with current procedures in Uganda as the last time I ...
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| Eccentric Load at Foundation | 3/18/2007 |
Q: Mr. Khan- I need to do an eccentric load check on a residential foundation at a point load. The ...
A: I normally do not design over this forum, but if the figures you have quoted are correct then it's a ...
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| Three-hinged beam | 3/7/2007 |
Q: I have an assignment that it is "three-hinged beam" with a point load (say 50 kips right at the ...
A: First you have to ask what the boundary conditions are- i.e. teh columns at either end. Are they ...
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| Tempeture effect | 2/7/2007 |
Q: What temperature effect may be at any building due to high temperature & coldness.
A: Basically this will mean that the external surface will be expanding or contracting at a different ...
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| pad foundation calculations | 2/1/2007 |
Q: How would you calculate the plan area of a pad foundation to anaxial loaded column, where the total ...
A: That is simple- just divide 195 by 205 and the answer is the pad area in m2. However, this assumes ...
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| Math | 1/12/2007 |
Q: What is a mathmatical equation relating to math that someone in the field would understand if I were ...
A: I am not sure what you are asking, but one maths formula would be area of a circle= pie x r x r. Or ...
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| ETABS | 1/2/2007 |
Q: Wish you & your Dear Ones a Happy & Prosperous New Year 2007. I would like to know the following: - ...
A: 1. For hollow core slabs, to simulate one-way loading on to beams, you should use "planks". 2. This ...
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| parameters of class 25 concrete | 12/30/2006 |
Q: I did a cube crushing test and the 28 days results gave me 22.2N/mm2. I would like to know if my ...
A: Based on just one test, yours has failed. Normally lots of tests are done on the same mix of ...
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| School assignment | 12/28/2006 |
Q: My name is Michael. I am a student at Brooklyn Technical High School in New York. My assignment ...
A: Due to the nature of this service, we do not give out personal email details, nor are we suppossed ...
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| ETABS | 12/24/2006 |
Q: - Can I know difference of rigid & semi-rigid diaphragm in ETABS. - I couldn’t find any option for ...
A: Sorry, I was travelling hence delay in replying: 1. Rigid diaphragm allows no in-plane deformation, ...
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| ETABS | 12/20/2006 |
Q: I am a new user using ETABS Nonlinear v9.0.9 version for design of RCC buildings. I would like to ...
A: I am fairly new to ETABS too, but I can answer as follows: 1. Suggest you use semi-rigid diaphragm, ...
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| footing design | 12/11/2006 |
Q: Sir, I am analyising a piperack str. in which two piperacks are meeting at the junction say piperack ...
A: This is difficult to answer without looking at the plans and knowing the foundation conditions. ...
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| Foundations | 12/3/2006 |
Q: what foundation would be most suitable for a factory which is to be erected on the site of a ...
A: This is difficult to answer as it all depends on how well the limestone has been compacted, how long ...
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| Condensation | 11/20/2006 |
Q: I am trying to calculate whether condensation could occur within a composite roofing structure. The ...
A: I am sorry, but I am not an expert on this subject. I hope you can get help elsewhere. What I can ...
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| Civil engineers | 11/17/2006 |
Q: What type of people enter the field and what values do civil engineers have?
A: Well, it's a very exciting and fullfilling career, but not as highly-paid as other professions such ...
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| RCC beam slab | 11/12/2006 |
Q: I am a student of architecture. Can you please tel me if i can have a room of 24m by 15m with no ...
A: Yes, you can but you will need downstand beams of about 1.2m depth spanning 15m from the columns at ...
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| 7" slab strength | 11/11/2006 |
Q: I am on the 3rd floor of a converted industrial loft building. I am building a concrete block ...
A: My only comment is that you need a competent structural engineer to study the design drawings of the ...
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| Civil Engineering (Retrofitting) | 11/11/2006 |
Q: There is tank made of stone masonary and platered all inside and the tank is now damged in EQ and ...
A: I presume this is a circular tank and that the main structure is not damaged or badly cracked? If ...
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| Civil engineering job | 11/2/2006 |
Q: There is a perception amomg many people that jobs in civil engg are really tough compared to other ...
A: No, that is not the case- you can have a very high powered and office based job with an excellent ...
|
| Maintenance | 10/28/2006 |
Q: I have often been confused about maintenance, as it relates to Civil Engineers. How can Civil ...
A: Basically, it relates to regular inspections and remedial work on items that have sufferred from ...
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| Wind Load | 10/28/2006 |
Q: How Dynamic Effect of Wind Load taken in to consideration in Tall Buildings ?
A: For tall buildings, there are approximate formulae to calculate the dynamic loading, but generally ...
|
| Engineering | 10/26/2006 |
Q: Hello, my name is John O'Donnell and I want to become an engineer. My brother is an engineer and it ...
A: I am asked this question quite often, so if you do not mind, I will cut and paste a Q&A below, which ...
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| pipe design | 10/25/2006 |
Q: i have figured out that headloss is 40m now giving me the slope, ...
A: I am not an expert on this, but looking at the formula, if V is the velocity then you can get that ...
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| Pad Foundation | 10/22/2006 |
Q: But these web sites are just showing solved examples. Whereas i want to know that how the formula is ...
A: The formulae are given in the link I sent you and are based on the basic principles of physics- i.e. ...
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| Pad Foundation | 10/21/2006 |
Q: A quick question. If Pad foundation comes under eccentric loading P. Pad having dimension D and B. ...
A: You will find the answer/formula at the following website: ...
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| statistics on its contribution | 10/18/2006 |
Q: I would like to know if civil engineers save more lives than doctors or is my statement true? If its ...
A: In abstract terms, yes Civil engineers do save many more lives than doctors, as if they did not ...
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| ultra high performance fibre reinforced concrete | 10/18/2006 |
Q: could you please explain ultra high performance fibre reinforced concrete, it's make up, properties, ...
A: I am sorry but I do not have personal experience of using this material. However, the following ...
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| good career choice? | 10/17/2006 |
Q: Please, please, please help me. I've applied to do Civil Engineering at University, but I'm ...
A: Yes, you can make good money, but probably later in your career. It is not as well paying as ...
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| footing design | 10/16/2006 |
Q: I have a problem of designing a column at the boundary of the site and footing design to be done for ...
A: It is difficult to explain that through this medium, but if you put some key words in google, you ...
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| Salaries in RSA and Angola | 10/13/2006 |
Q: I have a masters in Civil Engieering construction management from the university of texas austin and ...
A: You have not mentioned how many years experience you have as salaries and openings depend on that. ...
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| Raft foundations | 10/9/2006 |
Q: Is good practice put the piles under de colummns in a pile-raft foundation?
A: There is no reason not to put piles right under the columns- basically the layout and spacing of ...
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| Example of math/work | 10/5/2006 |
Q: Hey I'm thinking about going into Civil Engineering. What I do know is that it's one of the easier ...
A: The maths can get very complex if you do it long-hand, but these days there are tools such as ...
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| The role of civil engineers | 10/4/2006 |
Q: I'm a student who study in civil & structural engineering course in Malaysia.I want to ask that what ...
A: In a nutshell, the role is in designing projects which are safe, economical, durable and functional, ...
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| Point Load in One Way Slab | 10/4/2006 |
Q: I search a theorical approach to design a point load in a one way slab. Suppose I got a one way ...
A: The rule of thumb for this is that you use a width of slab equal to one fifth of the span, so in ...
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| math | 9/29/2006 |
Q: what is the specific job of a civil engineering?
A: I am a bit confused- are you asking about math or civil engineering? Anyway, just to confirm that ...
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| Construction-future | 9/28/2006 |
Q: I am doing a project on the possible future wonders of the world..and i just cant remember the name ...
A: There are several such projects proposed. Here are a few links: ...
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| Construction /Civil Engineering Terms | 9/24/2006 |
Q: I always have problems in identifying the materials, equipments or terminology of construction or ...
A: Try this website- it has a wealth of info and links: http://www.guideme.com/CivilEngineering.htm A ...
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| Thermal Expansion of a Pipe | 9/21/2006 |
Q: What's the formula for the increase in the outside diameter of a pipe when it heats up? And what's ...
A: John, This not my area of expertise, but I would imagine that the formula would be: Coeff of ...
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| Slab Strength | 9/20/2006 |
Q: I have a oil tank which I would like to place on a slab of concrete. The concrete is an average of ...
A: As a direct pressure on the concrete, it should be OK (you have not mentioned grade of concrete or ...
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| Pad Foundation | 9/11/2006 |
Q: I am in the process of calculating the foundation size for a second floor extionsion, supported by 2 ...
A: Basically you will need to work out the total weight of the pier and the floor/walls/live load that ...
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| example of design calculation of rc structure | 9/9/2006 |
Q: I am going to indergo my profesional exam. I need some hand design calculation examples for me to do ...
A: I cannot send you examples through this forum, but if you go to the following website and click on ...
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| Raft foundation+forklift movement | 9/6/2006 |
Q: I have this situation: a. 3 story building with raft foundation of 60cm depth. b. forklift ...
A: I do not design structures over this forum, but I will answer your questions as far as the info you ...
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| Strengthen the concrete | 8/21/2006 |
Q: how can i strengthen the concrete with 1200psi to 3000 psi?
A: This depends- if it is already cast, solid, there is nothing you can do, but the concrete will gain ...
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| Pad foundations | 6/12/2006 |
Q: I have a steel column which is to carry a load of 25Te, is a pad foundation the right foundation to ...
A: This is not easy to answer as it depends on many factors- e.g. is the column braced in all ...
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| Modelling structures | 5/19/2006 |
Q: I wish to know how we go about modeling a civil engineering structure. Specifically bridges. I'm ...
A: This is a complicated subject that I cannot go into over this medium. I suggest you buy some ...
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| foundation decision | 5/14/2006 |
Q: I need help with deciding if it is a good idea to use a concrete pad foundation or the traditional ...
A: Foundations are very difficult to advise upon remotely as there are too many variables and potential ...
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| Mohrs theorm | 5/9/2006 |
Q: Sir, Plz tell me how to understand mohr's theorem for structural analysis and if possible for ...
A: The definition for structural analysis is as follows: Used for determining slope and deflection of ...
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| Vierendeel Truss | 5/1/2006 |
Q: I have a question about Vierendeel Truss (no diagonals) that I have to solve it by hand (because of ...
A: That is easy! Just work out your overall bending moment and shear force diagram between the 2 main ...
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| Professional Fee | 4/14/2006 |
Q: I'm just new as a civil engineer in CA and would want to know the professional fee on designing a ...
A: I am sorry but I have no idea of how much fee is charged in CA, but as a guideline, I would apply ...
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| tower cranes | 3/24/2006 |
Q: I would like to request more information to the answer you gave on 6/20/2005 regarding tower cranes. ...
A: What you would do is to dismantle the smaller crane into small enough componenest to enable ...
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| Force vectors | 3/12/2006 |
Q: How do you calculate the horizonal vector of force in a case where a conical object with weight 'w' ...
A: From first principles, and ignoring friction, and assuming that the material of the cone is quite ...
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| eccentric footing | 2/22/2006 |
Q: First I realy appreciate your help to whome realy need to go on with one's feild without any ...
A: Yes, you have to design it as required by the geometry, for example for a boundary wall this is a ...
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| Suspension bridges | 2/16/2006 |
Q: I'm doing a science fair project at school, on "how can a suspension bridge hold so much weight ...
A: The main reason is that suspension bridges work on the principle of tension in a cable, which is ...
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| Stiffness Calculation | 1/30/2006 |
Q: I have been trying to find out about stiffness calculation. This can be stiffness of vertical steel ...
A: Go to this website and download the pdf document- it has all the answers. ...
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| civil engineering safety and equipment | 1/26/2006 |
Q: can you tell me what safety precautions civil engineers use and what type of special equipment they ...
A: If you mean what they use when out on site, the the answer is as follows: 1. A pair of safety shoes ...
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| Engineering | 12/29/2005 |
Q: What special skills would you need to suceed in engineering?
A: Well, you ahve not mentioned which type of engineering (civil, structural, mechanical, electrical, ...
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| Plate thickness calculation for a Wall Plate | 12/2/2005 |
Q: I have been trying to find out the best way to calculate plate thickness of an embeded wall plate ...
A: Your principle seems OK, but I do not know what a nelson stud is, nor it's diameter. Have you taken ...
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| "Floor" Finite Element Analysis Program | 11/20/2005 |
Q: First of all, I would like to thank you for answering my earlier question. This time, I would like ...
A: I think you are referring to the ADAPT-Floor software, which is a very good one for PT flat slabs. ...
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| Stress Distribution formula when e>L/6 | 11/13/2005 |
Q: My question is regarding stress distribution formula due to eccentric loading (say on a retaining ...
A: The formula you quoted needs slight correction: When e<L/6, sigma (max. soil pressure)=P/A * (1 + ...
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| Channel strength | 10/16/2005 |
Q: This may sound trivial, but it is important to me. Which of the following is strongest? 1. 1" ...
A: This is not a trivial question, but a good one! The answer to your question is as you say- the 1" ...
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| Aerodynamics | 9/15/2005 |
Q: I am a M.Tech. student. I wanted information about aerodynamics, how is it related to civil ...
A: Aerodynamics is relevant to civil engineering mainly to do with the effects of wind on buildings, ...
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| Translucent concrete | 8/30/2005 |
Q: hmmm..it's possible I am incorrect about the direction in which the fiber optics are laid, and each ...
A: I am not an expert in sound proofing, but I guess something like a car silencer would work- lots of ...
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| Translucent concrete | 8/25/2005 |
Q: ------------------------- My understanding from a recent Science News is that the concrete is poured ...
A: What you describe would probably only be translucent along the longitudinal axis, but using ...
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| Translucent concrete | 8/23/2005 |
Q: I am really excited by the recent invention of translucent concrete. Can you tell me if anything ...
A: As you said, this is a fairly recent invention and not much has been published about it. All I know ...
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| rammer construction | 8/4/2005 |
Q: STATEMENT OF PROMBLEM Q1)What exactly is the 2.5kg rammer used to solve. PURPOSE OF ...
A: I am really sorry to say I do not know what a 2.5 kg rammer is, unless it is for compacting cubes? ...
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| Tower cranes | 6/20/2005 |
Q: I saw your earlier response about how the tower cranes are supported, but my question is how are ...
A: The crane within a building is usually mounted on the walls of the lift shaft and it is jacked up as ...
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| tuning combs | 5/25/2005 |
Q: but another question...isn't the musical instrument thingy called a tuning fork [with 2 prongs]? ...
A: Yes, you are absolutely right- the musical ones are forks. Visit the following website to get some ...
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| tuning combs | 5/24/2005 |
Q: I recently acquired a set of tuning combs. They look old, are metal [brass?] and came in a brass ...
A: As far as I know, these are used more in mechanical engineering (where vibration and frequency of ...
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| construction crane counterweighting | 4/20/2005 |
Q: Construction cranes seem to all have a big "box" hanging from their back ends-- is this the ...
A: Well you are quite right- such cranes would topple over if they did not have travelling ...
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| construction crane counterweighting | 4/20/2005 |
Q: Construction cranes seem to all have a big "box" hanging from their back ends-- is this the ...
A: Yes, that is the counterweight and it is calibrated to balance the median of the max and minimum ...
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| Concrete Shear Loading | 4/15/2005 |
Q: I have a 4 inch concrete slab sticking out of the side of my house over a window. What is the ...
A: This question cannot be answered by any engineer unless he knows the amount and placement of main ...
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| Creativity and Civil Engineering | 4/3/2005 |
Q: How are you? My friend is trying to apply for an internship, and he has to write a short paper ...
A: This is such an open-ended question, it is difficult to answer through this medium. Maybe he can ...
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| Working in Africa | 4/3/2005 |
Q: I have been offered to work in Mozambique. They offered me 7000€/month plus 180 US$/month. I have 4 ...
A: I have no experience in Mozambique and I do not know the cost of living there, nor the terms and ...
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| Estimating | 3/22/2005 |
Q: Given a working drawing of abuilding, what procedures or guidelines should one follow in order to ...
A: Basically you have to measure the materials of permanent construction (e.g. concrete, rebar, ...
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| R.C.C Design | 3/9/2005 |
Q: I would like to know a detailed procedure (Calculation with formulas & abravations) for a R.C.C ...
A: This is too long a subject to describe through this medium. The basics of design are to: 1. ...
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| roadworks | 2/28/2005 |
Q: ------------------------- Followup To Answer - You're welcome! Ok, well i guess im right, on all ...
A: 1. Past track record, experience, reputation and references. 2. Meeting tight deadlines and accuracy ...
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| roadworks | 2/28/2005 |
Q: ------------------------- Followup To Answer - Hi Mbenic, It's not my area of expertise but I ...
A: Yes, you have the basics correct. Of course, before the earthworks one has to do the setting out in ...
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| bridge and army | 2/19/2005 |
Q: is this true that army never marches on a bridge because this can cause resonance and bridge can ...
A: Yes, this is very true. You amy have head of the Millenniem Bridge in London which on the first day ...
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| Load weight question: Deck | 2/13/2005 |
Q: We built a new deck onto our house one year ago with the intention of adding a hot tub in one ...
A: I had replied earlier, but seems it did not get to you. I regret I cannot design over this forum ...
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| reinforcement | 2/11/2005 |
Q: 1.how calculate the vertical overlaps in colum for 2nd floor 2.how calculate the "L" bent in column ...
A: These are difficult questions to answer through this medium. I suggest you study a book of basics in ...
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| About modelling RC | 2/4/2005 |
Q: I hope that you can help me with this! I am designing a small rural clinic as part of a project and ...
A: This is difficult to explain properly through this medium, but in general all software work like ...
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| Bridges | 1/27/2005 |
Q: I am building a bridge for a physics class and was wondering what the strongest type of bridge would ...
A: You have a very interesting project. The different types of bridges are suited for different spans. ...
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| bracing value of masonry walls | 1/16/2005 |
Q: I live in a small country town in Australia. I did a materials engineering degree at university but ...
A: Design of blockwork is not an exact science, especially when you are assessing strength not ...
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| an eggcatcher | 1/14/2005 |
Q: in my physics class we have to do an experiment of designing a egg catcher. This egg catcher can ...
A: I guess the best way to do this is to design a channel with has a cross-section of a semi-circle ...
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| ground settling | 1/14/2005 |
Q: I have a question in regards to ground settling. Our parking lot is settling in a certain area ...
A: It is very difficult to give advice about ground problems without physically inspecting it. However, ...
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| bracing value of masonry walls | 1/13/2005 |
Q: I live in a small country town in Australia. I did a materials engineering degree at university but ...
A: I am not sure what you mean by bracing value, but if it is about lateral bracing of a building by ...
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| Civil Engineering Question | 1/8/2005 |
Q: I am Stephanie, a first year university student (not enrolled in engineering though). I came across ...
A: Yes, you have the calculation correct, except that you have to have consistent units, so first ...
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| Civil Engineering Question | 1/7/2005 |
Q: I am Stephanie, a first year university student (not enrolled in engineering though). I came across ...
A: This one is easy as pie! The deflection formula for a simply supported beam with pin supports is: ...
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| Damage detection | 1/6/2005 |
Q: Hope u to be fine out there. Do u have any experience in research for the damage detection of ...
A: No I do not have direct exeperience of this but I did a quick search for you. Try the following web ...
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| Bridge construction | 12/31/2004 |
Q: I am doing a science fair project on civil engineering. The project is about which bridge can hold ...
A: You have a very interesting project. The different types of bridges are suited for different spans. ...
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| Tunneling | 12/20/2004 |
Q: This may not be your specific subject but your profile seemed the closest I could find. It occurred ...
A: The main reason for this is to prevent a form of visual hypnosis in drivers if they drive for long ...
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| basic information | 9/10/2004 |
Q: Can u tell me what is the "Principle of virtual work" , "Castigliano's theorem" and "Unit ...
A: It's been a VERY long time since I was taught these theorems, so the best way for you to learn them ...
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| Straw structures? | 9/9/2004 |
Q: I recently had to build a drinking straw structure in order that it might support the wieght of a ...
A: I would say that you should build a tower of say 3"x 3" square on plan, with 4 no. 8" long columns ...
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| notional load to building | 9/8/2004 |
Q: According to BS code BS8110(similar to other codes), there is a requirement that the building must ...
A: Here are the answers: 1. Yes, apply it at basement and ground floor levels too. 2. Yes, the ...
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| Why are canals in Central... | 6/13/2004 |
Q: Why are canals in Central AZ designed with an unenclosed top?
A: I am not sure where AZ is (Azerbaijan?), but usually any canals that are open-top are usually ...
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| building design | 6/5/2004 |
Q: respected sir, How can I be expert in the design of buildings. what books I should study.
A: This is a difficult question to answer. Basically you need to do a course in structural engineering ...
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| can forecast earthquake's... | 5/31/2004 |
Q: can forecast earthquake's time and its place?
A: The science of predicting earthquakes is not very good for the long-range, although instruments can ...
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| H-Beam cantilever | 5/30/2004 |
Q: When I had my manufactured home installed I had the beams upgraded to a 10" H-Beam so that I did not ...
A: Unfortunately, I need more info about the section size before I can work out the load carrying ...
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| your advise to new graduate.... | 5/29/2004 |
Q: MR.Arshad Khan ... I'm really thankful to the great job you are doing to civils and my quesition is ...
A: I would suggest you try and get some site experience before you go too far into a design office ...
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| how to improve the great wall of china | 5/27/2004 |
Q: Let say you is a porfessional engineer and now you was in the ancient time at china. now you want to ...
A: This is an interesting question, but I would like to know what you mean by "improve" the wall. For ...
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| Plinth Walls | 5/26/2004 |
Q: Thanx for ur reply but do u have any picture (diagram) which can clarify this concept cos i am not ...
A: Sorry I cannot send a picture, but basically, if you assume that the top of foundation is say 1.0 m ...
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| Plinth Walls | 5/25/2004 |
Q: Can U plz tell me that what all are the plinth walls and what are thier functions also do u have ...
A: Plinth walls are short walls that are usually integral with the foundations (usually strip footings) ...
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| civil engineering | 5/20/2004 |
Q: What is a perch and what is it used for? What is "breaking chain"? Gunter's chain is how many ...
A: 1. As far as I know, a perch is a fish and can be used as a pet or as food! 2. A gunter's chain is ...
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| structural engineering | 5/16/2004 |
Q: Whrere on the internet can i find information about equivalent frame method of analysis of concrete ...
A: If you mean the force method, then check this site: ...
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| structural engineering | 5/13/2004 |
Q: Where on the internet and in books can i find some literature to study about transfer of moments ...
A: Yes, if you goo to Google and type "Moment Distribution", you will find lots of info. Here is one ...
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| hello | 5/13/2004 |
Q: hey, im chris robles, and i go to oakmont high school. we are doing a carrer project right now, and ...
A: I am often asked such questions, so if you do not mind, i will cut and past a Q&A session which may ...
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| Raft Foundations | 5/11/2004 |
Q: Could you please explain how a raft foundation can be progressively stiffened, as the need arises ...
A: I am not sure whether I have understood you correctly, but if a raft has say more loading in the ...
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| Hydraulic cosiderations | 5/10/2004 |
Q: My query is can u plz tell me what all are the hydraulic considerations while designing a bridge. ...
A: The main considerations are of course hydraulic loading during flood conditions, as well as debris ...
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| lifting heavy weight | 5/6/2004 |
Q: How much weight can a helecopter lift and factors must a pilot consider when lifting larger ...
A: This is not really my expertise, but I did some research for you and it appaers that a Sikorsky ...
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| earthquake on an burried structure | 4/20/2004 |
Q: I am Adel and I am working on a project in which we have a reinforced concrete box structure which ...
A: You are correct in principle, but it also depends on what type of soil is backfilled and what the ...
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| p-delta analysis | 4/8/2004 |
Q: I have a question about p-delta analysis which etabs does . Etabs does this analysis only on frame ...
A: I do not used ETABS, but if it is similar to STAAD, then what I would do is enclose the (shear wall ...
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| Rcc eccentric footing design (isolated) | 4/8/2004 |
Q: My question is how to design a spread footing which is located just near the boundry of the plot, ...
A: Yes, this is a common problem and you need to design it as an eccentrically loaded pad footing, ...
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| Weight Distrubution | 4/1/2004 |
Q: I am wondering whether a scale actually measures the entire weight of an object. For example if I ...
A: I regret to inform you that always weight down (action) equals wheel or axel loading (reaction)- ...
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| Civil Engineering Software | 3/30/2004 |
Q: I'm a Civil Engineering student from India and have a keen interest in computers as well. What ...
A: The most useful software is Excel or other spreadsheet, and after that an analysis package like ...
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| Culverts and Bridge | 3/26/2004 |
Q: I just dont get ur sentence "and as it does not have a floor, it is called a bridge." do bridges ...
A: . . Hi Adeel, If you consider a box culvert for say a river to pass through under a road, then the ...
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| Culverts and Bridge | 3/25/2004 |
Q: Can u plz tell me that what is the difference between a culvert and bridge, cos somebody told me ...
A: Actually, both your advisors are correct. A culvert usually is either circular or rectangular in ...
|
| Building volumes | 3/24/2004 |
Q: What is the interior volume of the Super Dome in New Orleans or any other very large enclosed ...
A: . . Hi Mel, I don't know about the super dome, but the Millennium Dome in London has a volume of ...
|
| Application of differential equatios in ... | 3/22/2004 |
Q: I research about application of differential equations in civil engineering.But i can not find ...
A: . . Hi Behroz, I have checked out a few websites for you and the following gives numerous examples ...
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| Safety culture | 3/19/2004 |
Q: how to improve safety culture and does ISO guarntee that and why ?
A: . . Hi Sam, This is a wide ranging subject, and difficult to do justice to through this medium. ...
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| I AM A CLASS 12 STUDENT LIVING... | 3/19/2004 |
Q: I AM A CLASS 12 STUDENT LIVING IN INDIA(CALCUTTA). I HAVE A CRAZE IN DESIGNING SKETCHES OF ...
A: . . Hi Alokjuneja, Well, if you also like and are good at maths and physics, then would recommned ...
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| Flexibility Method | 3/18/2004 |
Q: Can you please provide a solution to the following problem: A propped cantilever beam with a span ...
A: . . Hi Paul, Although I can work out the answers for you, it would be far better if you understood ...
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| Partition wall | 3/14/2004 |
Q: Thanx for your early response. The problem i want to solve out is that i want to construct a 4 1/2 ...
A: . . Hi Adeel, I still do not know the quality of the existing floor or soil below, but assuming ...
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| Partition wall | 3/13/2004 |
Q: I just want to inquire that is it necessary to have the foundation of 4 1/2 inch brick wall also can ...
A: . . Hi Adeel, Hi, This is a very difficult question to answer without knowing the design and ...
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| doubt clearance ... | 3/6/2004 |
Q: respected sir, could you state in detail by giving "points" :- 1)the functions ...
A: The main difference between lintels and arches is that the former is straight and horizontal while ...
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| Civil Related | 3/5/2004 |
Q: Can you just clearly explain, How is particle board and plywood prepared ? ...
A: Particle (or chip) board is fine thin fingers of wood which are wetted, and compressed with glue to ...
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| Doubts ... | 3/5/2004 |
Q: Define the following terms :- 1)Architrave 2)Venetian Blind 3)Sash 4)FanLight plz do ...
A: This is really more to do with Architecture, but here are your answers: 1.The moulding around a ...
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| Foundation Proposals | 3/4/2004 |
Q: what would the best way for constructing mass filled pad foundations. I relaise there is the ...
A: . . . Hi Martin, Thanks for further info, but this is still not enough for me to give you specific ...
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| Foundation Proposals | 3/3/2004 |
Q: what would the best way for constructing mass filled pad foundations. I relaise there is the ...
A: It is difficult to give you a method statement without knowing full geotechnical details, etc. ...
|
| student advice (mumbai university) | 3/3/2004 |
Q: i dont know if u can help me but anyway here it goes i am a sem 8 construction engg student in shah ...
A: . . . Hi Nitin, I am really sorry to say that I have no idea what sem 7 and 8 mean in the Indian ...
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| engineering | 2/26/2004 |
Q: espected sir, I WILL BE COMPLETING MY CIVIL ENGINEERING THIS YEAR. WHAT TO DO NEXT? STRUCTURAL ...
A: This is a difficult question for me to answer as I do not know enough of your personal ...
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| Seismic | 2/19/2004 |
Q: Client Project states "seismic" shall be Class 2b with acceleration factor of 0.2g; and, ...
A: From what I can make out, both references to 0.2 g are the same thing. Zone 2b is a ...
|
| Engineering | 2/12/2004 |
Q: Im sorry to bother you, but are u familiar with aerospace engineering, if not could you please ...
A: I am sorry to say that this is not my field of expertise, nor do I have any contacts. However, if ...
|
| stresses & strains | 11/5/2003 |
Q: I'm a 3rd year student of civil engineering here in Canada, I have sort of a stupid question, I am ...
A: Not such a dumb question, really! Shear strength is what the member can take/resist, by it's ...
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| What is a civil engineer? | 10/28/2003 |
Q: Khan, I've heard great things about civil engineering, and I am now thinking about taking it as my ...
A: Well, it's a very exciting and fullfilling career, but not as highly-paid as other professions such ...
|
| Bridges | 10/11/2003 |
Q: I am making a portfolio on an excursion we had at school. It was about bridges. There are some ...
A: Hi Well, I am sorry but I had only heard of no.1 and 2- perhaps because I live in Europe and ...
|
| Newtonian Fluids | 9/26/2003 |
Q: Arshad Khan, Thank you for taking time to answer a very basic question. In the most basic terms you ...
A: I am sorry but this is not within my expertise- it is in the oil exploration field. I ahd to do some ...
|
| Disasters and Construction | 9/2/2003 |
Q: Can buildings be constructed to withstand earthquakes, floods, bombs, and other natural & human ...
A: Yes, to a limited extent one can design against all these disasters, but it is a question of how ...
|
| concrete bridge repair | 6/7/2003 |
Q: there is 35 year bridge has a lot of defects during carbonation and overload. should i replace the ...
A: > > Hi Maha, This is very difficult to advise on without inspecting the structure myself. However, ...
|
| Civil engineering | 5/5/2003 |
Q: 1)Whart services are required in a medium rise building & how are provisions made for there ...
A: I have already answered 1, 2 and 4 as below, and now answer 3. Although I cannot give you detailed ...
|
| For my English Career Project. | 4/28/2003 |
Q: 1. What do you like most about your job? 2. How did you become interested in your career? 3. Briefly ...
A: Let me forward you the Q&A below which may answer many of your questions. This was in answer to ...
|
| Civil Eng. | 4/18/2003 |
Q: I'm a college student who is checking ot the different fields of engineering. I was courious as to ...
A: Let me forward you the Q&A below which may answer many of your questions. This was in answer to ...
|
| Reasons | 4/16/2003 |
Q: Why do you do your job?
A: That's a question I have not been asked before!! I do it because I love to be creative and find ...
|
| I'm currently studying civil... | 3/28/2003 |
Q: I'm currently studying civil engineering and I'm trying to decide in which field to specialize. If ...
A: Let me forward you the Q&A below which may answer many of your questions. This was in answer to ...
|
| Help! | 3/25/2003 |
Q: my name is Margarita Cruz I'm a student at the University of Puerto Rico, and for my geography ...
A: I am not an expert on canals, but from what I know, canalisation is man-made profiling of the river ...
|
| rcc design | 12/9/2002 |
Q: my question is that what is the criteria to establish the positions of columns if we were provided ...
A: Sorry for this late reply- I was travelling. 1. There is no limit to the space between columns, but ...
|
| shapes of materials | 11/25/2002 |
Q: I did some experiments with folding paper and found that paper shaped into a cylinder with a ...
A: Yes, your experiments are correct in principal, but the results can vary depending on the relative ...
|
| Job Question | 11/20/2002 |
Q: What is it like to be an engineer (do you like it? (for school career assignment))?
A: I have had similar questions before, so if you do not mind I will cut & paste a Q&A section which ...
|
| Mechanical testing of wood | 11/20/2002 |
Q: and we recently had a wood lab where we tested wood for different strengths (tensile, cleavage, ...
A: I am not an expert on timber design, but from first principles I would say that the reason the wood ...
|
| earth quack | 9/15/2002 |
Q: for designing gruond water tank or reservoir with 6 m high R.C ,sould i consider the earthquack ...
A: If you are in a high-risk seismic zone, then yes, reservoirs should be designed against earthquakes. ...
|
| Pattern developing | 9/11/2002 |
Q: Hope you can help me, I am a plastic tech, basically welding plastic. Recently I was asked to ...
A: I am sorry to say that this is not within my expertise, nor do I know where to refer you to. ...
|
| Geotechnia | 8/22/2002 |
Q: Im a first semester Civil Engineering student in Mexico. I was just looking for some general, broad ...
A: Geotechnical engineering is the application of soil mechanics to practical problems, such as slope ...
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| Design | 8/12/2002 |
Q: I have a 14 year old son who is very interested in building structures---especially bridges, ...
A: There are several CAD software on the market, but I have not tried out the simple/basic ones. ...
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| architecture | 7/25/2002 |
Q: what would be the height of the interior of a three story building with a central fourth story ...
A: Normally, the height of an office building would be 3-3.5 m per floor. However, for public assembly ...
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| Load bearing | 5/27/2002 |
Q: this may be a long shot but I wonder if you can help. I'm trying to find out if there's a ...
A: Yes, you can either get a proper in-situ plate bearing test carried out by a suitable laboratory, or ...
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| concrete | 9/25/2001 |
Q: please explain the term carbonation in reference to reinforced concrete.
A: Hi Carbonation is the affect of carbon dioxide in air neutralizing the alkalis in concrete over a ...
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| Concrete | 9/23/2001 |
Q: What is the difference as percent cost between a reinforced concrete slab and a normal coc. slab. ...
A: Firstly I am not sure what a "coc" slab is. If this is just a concrete slab, or any other type of ...
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| Pad foundations | 6/21/2001 |
Q: What is the method of constructing an isolated reinforced concrete pad foundation?
A: This appears to be a trick question, perhaps? If not, the answer is quite simple. You dig a hole in ...
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| civil engineering | 5/18/2001 |
Q: How many days do you work?Do I work with people or machines?What did you begin as?Then what where ...
A: The answers are in BOLD below: How many days do you work? AVERAGE 5-6 A WEEK, 42 WEEKS A YEAR. Do I ...
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| Wall Edge Footing | 4/24/2001 |
Q: I have an edge wall footing(L shape) for a reinforced concrete wall. The wall is 6m in height above ...
A: The only way this can be designed is to have a fairly long and thick base, so that it's centroid ...
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| CONSTRUCTION CRANES | 4/5/2001 |
Q: HOW ARE CONSTUCTION CRANES LIFTED TO THE TOP OF BUILDINGS UNDER CONSRTUCTION? ARE THE ANCHORED TO ...
A: Most cranes for multistorey buildings are so-called self-climbing tower cranes. They are always ...
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| General | 3/29/2001 |
Q: Khan, Hello again and hope you're doing great. This time I don't have a specific question, it's a ...
A: Your question is very difficult to answer as there are so many variables. Basically, whether one ...
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| Follow-Up | 3/20/2001 |
Q: Khan, Hello, I asked a Question regarding one-way shear transfer of wheel load on a solid slab, but ...
A: Jarkas, I believe I have already answered your question yesterday by giving you the principles. ...
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| Follow-Up | 3/20/2001 |
Q: Khan, Hello, and thank you for your prompt response regarding our previous questions. I would like ...
A: Jarkas, Your question is incomplete, but from what I can make out, here is the answer: If the ...
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| Analysis | 3/18/2001 |
Q: Khan, Good Day. I have two questions for you. 1. Suppose you have a non-linear simply supported ...
A: Jarkas, Your second question is incomplete. Here is the answer to your first: If the two supports ...
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| Reinforced Concrete Industrial Facilities Design load. | 3/10/2001 |
Q: Khan, Good Day, I have two questions for you in the above mentioned subject. We have an industrial ...
A: Jarkas, You have asked several questions, all of which are inter-related. If I have my units ...
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