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Civil Engineering/ETABS vertical load on shear wall

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Expert: - 2/9/2011


Question
In etabs could is possible to define a vertical load on shear wall and should we model a under ground tank in etabs of safe?

Answer
Hi Rahman,

1. Yes, if you want to apply a point load. make sure it is at a node (i.e. mesh the wall so, that there is a node/joint under the point load. If you want to apply a line load, then model a dummy beam (say same width as wall, and with depth equal to width), on top of the wall, and then apply the line load (uniform or trapazoidal)to that beam. If you want to apply a UDL surface load on the wall (e.g. finishes, etc) , you can do that by directly applying in -Z direction, using shell/area loads.

2. The tank should be modelled in ETABS, and then the slabs can be exported to SAFE if you want to do detailed slab analysis. Ideally the tanks should be modelled in SAP or STAAD.Pro or similar, as ETABS is more suited to buildings.  

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Arshad Khan

Expertise

I can answer any questions to do with civil and structural engineering consultancy and construction industry in East Africa and the Middle East, and specifically with the analysis and design of reinforced concrete structures. My particular expertise is in the aseismic design and optimisation of tall buildings.

Experience

Employment history: 36 years in Construction and consultancy in the UK, Kenya, Tanzania, Uganda, Ethiopia, Eritrea, South Africa, Somalia, Zambia, Austria, Bahrain, Kuwait, Doha and the U.A.E.

Organizations
.Fellow of Institution of Structural Engineers (UK) .Fellow of Institution of Civil Engineers(UK) .Member of the Institution of Engineers, Kenya .Registered Engineer, ERB, Kenya .Member of the Architectural Association of Kenya (Engineers Chapter) .Chartered Engineer (UK)

Publications
•1984: International Conference on the Art and Practice of Structural Design, London •1994: 3rd Int. Kerensky Conference in Structural Engineering, Singapore •2008: International Conference on High-Rise Towers, Abu Dhabi

Education/Credentials
BSc, 1st Class Hons, in Building Engineering, University of Bath, UK MSc in Concrete Structures and Technology, University of London. Diploma of Imperial College, UK.

Awards and Honors
•Science Congress Special Award (for 2-seater Hovercraft - 1968) •Institution of Civil Engineers Award for outstanding performance at Bath University (1975) •Concrete Society Postgraduate study Bursary Award (1976) •Consular Representative for British High Commission, Nairobi. (1995 to 1998) •Examiner for Institution of Civil Engineers Professional Interviews, Nairobi. (1997 to 1998) •Branch Representative in Vienna for PI assessment for Inst. of Struct. Engrs. (1999 to date)

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