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Wind pressure coefficients for Y shaped building

 
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abhishekpathade
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Joined: 05 Aug 2009
Posts: 23

PostPosted: Mon Apr 05, 2010 5:38 pm    Post subject: Wind pressure coefficients for Y shaped building Reply with quote

Dear all

i am working on the structural design of a 40 storied building, the shape of which is Y. Please can someone tell me where can i get the wind pressure coefficients for initial analysis. Else what is the procedure?


Regards

abhishek
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Dr. N. Subramanian
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Joined: 21 Feb 2008
Posts: 5302
Location: Gaithersburg, MD, U.S.A.

PostPosted: Tue Apr 06, 2010 2:52 pm    Post subject: Re: Wind pressure coefficients for Y shaped building Reply with quote

Hi Er Abhishek,

IS 875 -Part 3: 1987 pressure coeff. are applicable to Sq and rect. buildings only. For Y-shaped buildings the most economical way to obtain pressure is to conduct Wind tunnel tests(You may note that Bhurj Dubai building also had Y-shape and the wind on it was evaluated using wind tunnel tests- in fact the shape itself was streamlined based on the tests and to obtain minimum loads due to wind. See: http://www.structuremag.org/Archives/2006-11/F-Burj-Dubai-Tower-Irwin-etal-Nov_06.pdf).

Wind tunnel tests are conducted at SERC, IITR, IITK, and NAL, Bangalore. The cost of the tests may be offset by the actual design based on accurate wind loading.

However the following papers may be useful to you.
http://bbaa6.mecc.polimi.it/uploads/validati/eb01.pdf
http://nargeo.geo.uni.lodz.pl/~icuc5/text/O_18_1.pdf

You may also refer Cook N.J., the designer's guide to Wind loading of Building structures, Butterworth, 1985

Best wishes,
Subramanian
ASP wrote:
Dear all

i am working on the structural design of a 40 storied building, the shape of which is Y. Please can someone tell me where can i get the wind pressure coefficients for initial analysis. Else what is the procedure?


Regards

abhishek
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abhishekpathade
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Joined: 05 Aug 2009
Posts: 23

PostPosted: Tue Apr 06, 2010 3:09 pm    Post subject: thank you Reply with quote

Dear sir

Thank you so much for your suggestion. Looking forward for more interaction on the forum.

Warm Regards

Abhishek
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