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Wind and Structures Volume 10, Number 4, July 2007 , pages 383-398 DOI: https://doi.org/10.12989/was.2007.10.4.383 |
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Wind-induced response of structurally coupled twin tall buildings |
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Juntack Lim and Bogusz Bienkiewicz
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| Abstract | ||
| The paper describes a study of the effects of structural coupling on the wind-induced response of twin tall buildings connected by a skybridge. Development of a dual high-frequency force balance used in wind tunnel investigation and background information on the methodology employed in analysis are presented. Comparisons of the wind-induced building response (rooftop acceleration) of structurally coupled and uncoupled twin buildings are provided and the influence of structural coupling is assessed. It is found that the adverse aerodynamic interference effects caused by close proximity of the buildings can be significantly reduced by the coupling. Neglecting of such interactions may lead to excessively conservative estimates of the wind-induced response of the buildings. The presented findings suggest that structural coupling should be included in wind-resistant design of twin tall buildings. | ||
| Key Words | ||
| wind-induced response; twin tall buildings; structural coupling; skybridge; dual high-frequency force balance; wind tunnel testing. | ||
| Address | ||
| Wind Engineering and Fluids Laboratory, Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523-1320, USA | ||