Techno Press
Techno Press

Wind and Structures   Volume 19, Number 5, November 2014, pages 565-583
DOI: http://dx.doi.org/10.12989/was.2014.19.5.565
 
Analysis of three dimensional equivalent static wind loads of symmetric high-rise buildings based on wind tunnel tests
Shuguo Liang, Lianghao Zou, Dahai Wang and Guoqing Huang

 
Abstract     [Full Text]
    Using synchronous surface pressures from the wind tunnel test, the three dimensional wind load models of high-rise buildings are established. Furthermore, the internal force responses of symmetric high-rise buildings in along-wind, across-wind and torsional directions are evaluated based on mode acceleration method, which expresses the restoring force as the summation of quasi-static force and inertia force components. Accordingly the calculation methods of equivalent static wind loads, in which the contributions of the higher modes can be considered, of symmetric high-rise buildings in along-wind, across-wind and torsional directions are deduced based on internal forces equivalence. Finally the equivalent static wind loads of an actual symmetric high-rise building are obtained by this method, and compared with the along-wind equivalent static wind loads obtained by China National Standard.
 
Key Words
    high-rise building; equivalent static wind load; mode acceleration method; internal force responses
 
Address
Shuguo Liang and Lianghao Zou: School of Civil and Building Engineering, Wuhan University, 8 South Donghu Road, Wuhan, China
Dahai Wang: School of Civil Engineering and Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, China
Guoqing Huang: School of Civil Engineering, Southwest Jiaotong University, 111 Beiyiduan, Erhuanlu, Chengdu, China
 

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