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Earthquake Resistant Proof Structure
Earthquake Resistant P  
QUESTION: Dear Arshad

http://en.wikipedia.org/wiki/Earthquake
http://en.wikipedia.org/wiki/Earthquake_resistant_structures‎
http://www.agiweb.org/education/aapg/invest/invest13.html
http://en.wikipedia.org/wiki/Seismology
http://en.wikipedia.org/wiki/Seismometer
http://www.iris.edu/hq/files/publications/brochures_onepagers/doc/OnePager7.pdf
http://www.youtube.com/watch?v=URC7zHeypWw‎
http://www.youtube.com/watch?v=-N_Q6Q-3o7M‎
http://www.youtube.com/watch?v=9X-js9gXSME
http://www.youtube.com/watch?v=tq9_UAcKq3M‎
http://www.bbc.co.uk/news/world-asia-pacific-15033972‎
http://www.buffalo.edu/news/10380‎
http://www.strongtie.com/about/research/capstone.html
http://www.sciencedaily.com/videos/2007/0112-earthquake_test_building_better_hom
http://www.nkanzai.co.jp/en/building/best/diagnosis2.html
http://www.geo.mtu.edu/UPSeis/waves.html‎
http://www.reidsteel.com/information/earthquake_resistant_building.htm
http://www.iris.edu/hq/files/programs/education_and_outreach/retm/tm_100112_hait

Is it possible to build 100 % Earthquake resistant proof buildings and structures ?.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Hi Prashant,

Depending on class/category, buildings in seismic zones are designed for different levels of damage depending on intensity of the earthquake- with low levels, no damage, with moderate level perhaps some cracking in internal partitions, glazing, etc, for severe level possibly non-elastic deformation of beams, which may require repairs or re-build, but the main aim is to prevent overall collapse and loss of life.

---------- FOLLOW-UP ----------

QUESTION: Dear Arshad

Thank you.

Is it possible to renovate/redevelop already built structures viz buildings,
bridges etc for earthquake resistant proofing ?.

i.e. Structures which are more than 3 years old.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Hi Prashant,

Yes, it is quite possible to repair and strengthen any structures (of whatever age) by either adding on extra material, or replacing damaged material.

Just Google using words "retro-fitting, concrete repairs, strengthening, Sika Wrap, Carbon Fibre repairs" and you will find lots of examples.

---------- FOLLOW-UP ----------

QUESTION: Dear Arshad

Thank you.

Are Quality certifications awarded by Civil consulting cos for
Earthquake resistant proofing to Builders ?.

i.e. Quality certification indicating "This Structure
is certified for withstanding earthquake of magnitude 7 by
XYZ Civil Consulting co".

The above is just a example from my end.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
Hi Prashant,

No, normally the engineer will submit a Basis of Design document to the client listing all the design criteria to be used for the design (including loading, materials, codes, etc)and once accepted he will ensure that the design and construction is done accordingly- this includes meeting the local codes requirements for seismic design.

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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: 40 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 •2013: IEK International Conference, Kisumu, Kenya

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 2010)

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