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Expert: - 6/25/2009


Question
Dear Sir,
Thanx so much as my colleague already asked the question that I have sent before and I got information from him.thanking you....
Sir,can we use the same reinforcement that getting in safe for the flat slab for the solid slab also?
when I am having a rectangular area 6m x 5m..the reinforcement for the flat slab will be same as a simple solid slab?which one is more economical? thanx so much ...

Answer
Hi Ravi,

I can tell from your question that you do not understand the basic principles of flat slab analysis and design, so please study the relevent textbooks.

Flat slab design relies on column and middle strips, for which the rebar detailing is very different from that of a normal slab which is spanning from beams or from walls. So, the answer to your question is no.

Generally, normal slabs are more economical in terms of materials when compared with flat slabs, but slower to construct, but you cannot design a single bay of slab as a flat slab.

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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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