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| Equivalent Static Wind Loads on LargeSpan Arched Structures |
| MA Ning1,WANG Xun1,HONG Ronghua1,ZHOU Dai1,2,LI Fangfei1,MA Jin1 |
| (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University,
Shanghai 200240, China; 2. Collaborative Innovation Center for Advanced Ship and DeepSea
Exploration， Shanghai 200240, China) |
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Abstract Abstract： Based on computational fluid dynamics (CFD) and the finite element dynamic timehistory analysis method, the timehistory speed of fluctuating wind was simulated by using the numerical method which was used as inlet boundary condition of numerical wind tunnel. Then, nonsteadystate analysis on a largespan arched structure was made by using the FLUENT software to get the timehistory wind loads. Meanwhile, the windinduced vibration response was analyzed using the ANSYS software. After that, equivalent static wind loads (ESWL) based on timehistory response were obtained and the definition of multiobjective ESWL combination factors was proposed. Finally, the multiobjective ESWL of the open largespan arched structure were obtained with their accuracy verified. The study shows that the static response values under ESWL and extreme response values in dynamic analysis are in good agreement.
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Received: 30 March 2015
Published: 28 March 2016
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