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Civil Engineering/Wind Loads in Uganda

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Expert: - 3/31/2007


Question
Dear Mr. Arshad,
What is the Basic Wind Speed that one needs to consider for the design of Structures in Uganda.  You might be aware that the Indian Standard (IS) Code IS 875:1987, has divided India in to 6 Wind Zones and for each wind zone a Basic Wind Speed (Vb)is given.  The values range from 33 m / sec to 55 m / sec. They have given three coefficients  k1, k2 & k3 which depend on the Life of Structures, the shape of Structure and the category of Structure etc. Out of the above, k2 depends on the height above Ground.  As per the Code, we get the Design Wind Speed Vz by the formula Vz = Vb x k1 x k2 x k3 and the design wind pressure is calculated from the formula, pz = 0.6 Vz x Vz.  Where pz is the pressure in N / sqm and Vz is the Design Wind speed at the required height.  Please let me know, if a similar division of Uganda has been done in Uganda also and if so what are the values of Basic Wind Speeds at various places.
Hope my question is clear
Thanks in anticipation and sorry for the trouble
Yours sincerely
Dr.B.S. Srinivas
Consultant

Answer
Dear Dr. Srinivas,

I am afriad I am a bit out of touch with current procedures in Uganda as the last time I worked there was some 20 years ago. I know they used to use CP3 Chap V, but they may have progressed on. As for wind speed data, I would suggest you get in touch with the UIPE, and their website with contact details are as follows:

http://ugandaengineers.org/membership_apply.htm

I hope that helps!

Kind regards,

Arshad

Civil Engineering

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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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