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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  

Liang, Shuguo (School of Civil and Building Engineering, Wuhan University)
Zou, Lianghao (School of Civil and Building Engineering, Wuhan University)
Wang, Dahai (School of Civil Engineering and Architecture, Wuhan University of Technology)
Huang, Guoqing (School of Civil Engineering, Southwest Jiaotong University)
Publication Information
Wind and Structures / v.19, no.5, 2014 , pp. 565-583 More about this Journal
Abstract
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.
Keywords
high-rise building; equivalent static wind load; mode acceleration method; internal force responses;
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