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| Numerical Simulation of Wind-induced Vibrating Responses of Typical Composited Spatial Membrane Structures
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| CHEN Ya-Nan, CHEN Yi-Ran, ZHOU Dai, SUN Ying-Hao, MA Jin |
| (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract The numerical simulations of the wind-induced responses of the spatial membrane structures with mountain-like shape were investigated. The windinduced 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.
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Received: 16 January 2012
Published: 30 October 2012
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