Aerodynamic Loads on Tall Buildings: Interactive Database
Publication: Journal of Structural Engineering
Volume 129, Issue 3
Abstract
Under the action of wind, tall buildings oscillate simultaneously in the alongwind, acrosswind, and torsional directions. While the alongwind loads have been successfully treated using quasi-steady and strip theories in terms of gust loading factors, the acrosswind and torsional loads cannot be treated in this manner, since these loads cannot be related in a straightforward manner to the fluctuations in the approach flow. Accordingly, most current codes and standards provide little guidance for the acrosswind and torsional response. To fill this gap, a preliminary, interactive database of aerodynamic loads is presented, which can be accessed by any user with Microsoft Explorer at the URL address http://www.nd.edu/∼nathaz/. The database is comprised of high-frequency base balance measurements on a host of isolated tall building models. Combined with the analysis procedure provided, the nondimensional aerodynamic loads can be used to compute the wind-induced response of tall buildings. The influence of key parameters, such as the side ratio, aspect ratio, and turbulence characteristics for rectangular sections, is also discussed. The database and analysis procedure are viable candidates for possible inclusion as a design guide in the next generation of codes and standards.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 129 • Issue 3 • March 2003
Pages: 394 - 404
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Apr 24, 2001
Accepted: Dec 11, 2001
Published online: Feb 14, 2003
Published in print: Mar 2003
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