Numerical Simulation of Wind-induced Vibrating Responses of  Typical Composited Spatial Membrane Structures

Abstract

Abstract: The numerical simulations of the wind-induced responses of the spatial membrane structures with mountain-like shape were investigated. The windinduced responses of the structure such as displacement, velocity and acceleration were numerically evaluated by considering various coming wind velocity and open-/closed-type topping caps. The obtained results show that the maximum structural displacements caused by the wind are almost identical for both structural systems with open-type and closed-type topping caps. For the structure with closed-type topping cap, the maximum acceleration is greater than that of the one with open-type one, whereas its transient amplification coefficient of structural displacement is smaller. With the increased wind velocity that falls within a certain range, it is also found that the vertical displacements of the structure with open-type topping cap increase while its transient amplification coefficient changes little. The current investigation in brief will be helpful for the wind-resistance design of this kind of spatial membrane structure.

Key words: membrane structure, fluid-structure interaction, wind-induced responses, transient amplification coefficient of structural displacement

CHEN Ya-Nan, CHEN Yi-Ran, ZHOU Dai, SUN Ying-Hao, MA Jin. Numerical Simulation of Wind-induced Vibrating Responses of Typical Composited Spatial Membrane Structures [J]. Journal of Shanghai Jiaotong University, 2012, 46(10): 1587-1593.

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Numerical Simulation of Wind-induced Vibrating Responses of Typical Composited Spatial Membrane Structures

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