Design Wind Loads Including Torsion for Rectangular Buildings with Horizontal Aspect Ratio of 1.6
Publication: Journal of Structural Engineering
Volume 140, Issue 4
Abstract
Limited information is available regarding wind-induced torsional loads on buildings. This paper presents results of tests carried out in a boundary-layer wind tunnel using building models with the same plan dimensions (aspect ratio of 1.6) and located in a simulated open terrain exposure for different wind directions. Synchronized wind pressure measurements allowed estimating instantaneous base-shear forces and torsional moments on the tested rigid building models. Results were normalized and presented in terms of shear and torsional coefficients for two load cases, namely: maximum torsion and corresponding shear, and maximum shear and corresponding torsion. Comparison of the wind-tunnel test results with current torsion- and shear-related provisions in the American standard demonstrates good agreement for low-rise buildings but differences for medium-rise buildings.
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References
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Information
Published In
Journal of Structural Engineering
Volume 140 • Issue 4 • April 2014
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Nov 19, 2012
Accepted: Oct 21, 2013
Published online: Dec 13, 2013
Published in print: Apr 1, 2014
Discussion open until: May 13, 2014
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