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CLC number: TU318; TU393.3; TU311.3

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Received: 2008-06-09

Revision Accepted: 2008-08-31

Crosschecked: 2008-12-29

Cited: 2

Clicked: 3332

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.3 P.337~344

10.1631/jzus.A0820430


3D wind-induced response analysis of a cable-membrane structure


Author(s):  Jun-jie LUO, Da-jian HAN

Affiliation(s):  State Key Laboratory of Subtropical Architecture Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China

Corresponding email(s):   axljj@163.com, ardjhan@scut.edu.cn

Key Words:  Cable-membrane structures, Time-history analysis, Coherence, Gust response factor


Jun-jie LUO, Da-jian HAN. 3D wind-induced response analysis of a cable-membrane structure[J]. Journal of Zhejiang University Science A, 2009, 10(3): 337~344.

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author="Jun-jie LUO, Da-jian HAN",
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T1 - 3D wind-induced response analysis of a cable-membrane structure
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Abstract: 
Wind loading is a dominant factor for design of a cable-membrane structure. Three orthogonal turbulent components, including the longitudinal, lateral and vertical wind velocities, should be taken into account for the wind loads. In this study, a stochastic 3D coupling wind field model is derived by the spectral representation theory. The coherence functions of the three orthogonal turbulent components are considered in this model. Then the model is applied to generate the three correlated wind turbulent components. After that, formulae are proposed to transform the velocities into wind loads, and to introduce the modified wind pressure force. Finally, a wind-induced time-history response analysis is conducted for a 3D cable-membrane structure. Analytical results indicate that responses induced by the proposed wind load model are 10%~25% larger than those by the conventional uncorrelated model, and that the responses are not quite influenced by the modified wind pressure force. Therefore, we concluded that, in the time-history response analysis, the coherences of the three orthogonal turbulent components are necessary for a 3D cable-membrane structure, but the modified wind pressure force can be ignored.

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