Analysis of Wind-induced Vibration Effects of a Funnel-shaped Open Membrane Structure

Abstract

Abstract:

By using the harmony superposition method (HSM), the wind velocity time history was simulated and converted to wind load time series. Applying the wind load time series to funnel-shaped open membrane structure(FOMS), the structural wind-induced vibration response and the wind-induced dynamic magnification factor were numerically investigated. The results revealed that the wind-induced nodal displacement, the velocity and acceleration responses of FOMS were stable, and the statistics for the wind-induced nodal displacement time history followed the Gaussian distribution. Furthermore, the windinduced dynamic magnification factor related to different parts of the structure varied significantly and the windinduced dynamic magnification factor on the windward part of structural system was greater than that on the leeward part.

Key words: membrane structure, wind velocity time series simulation, windinduced dynamic magnification factor

CLC Number:

ZHOU Dai,QIAN Kun,MA Jun,HAN Zhaolong,HONG Ronghua,JI Qing. Analysis of Wind-induced Vibration Effects of a Funnel-shaped Open Membrane Structure[J]. Journal of Shanghai Jiaotong University, 2013, 47(06): 862-866.

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