| CFD方法的大跨度桥梁抖振荷载 |
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| 引用本文： | 刘婷婷,张文首.CFD方法的大跨度桥梁抖振荷载[J].土木与环境工程学报,2011,33(6):59-63. |
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| 作者姓名： | 刘婷婷 张文首 |
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| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室,辽宁大连,116024 |
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| 摘 要： | 采用计算流体力学（Computational Fluid Dynamic,CFD）方法替代传统的桥梁节段模型风洞试验,改进了大跨度桥梁抖振力计算方法。在香港青马大桥精细有限元模型基础上,模拟周围风场对主梁桥板压力分布,计算节点抖振力,求解局部应力响应,为桥梁抖振疲劳分析和结构健康监测打下了基础。
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| 关 键 词： | 大跨度桥梁 计算流体力学 抖振 局部应力 |
Load Analysis of Butteting Bridges by CFD |
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| LIU Ting ting and ZHANG Wen shou.Load Analysis of Butteting Bridges by CFD[J].Journal of Civil and Environmental Engineering,2011,33(6):59-63. |
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| Authors: | LIU Ting ting and ZHANG Wen shou |
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| Affiliation: | (State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology,Dalian 116024,Liaoming,P.R.China) |
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| Abstract: | An improved computational method for buffeting forces of long span bridges,which substitutes the traditional wind tunnel test with the bridge segment model for CFD method,is proposed.In the case study of Tsing Ma Bridge,the pressure distribution induced by the wind field of the bridge decks was simulated.The nodal buffeting forces were computed and the local stress responses were obtained according to the CFD simulation and the refined finite element model.Preparation for buffeting induced fatigue analysis of bridges and structural health monitoring are provided. |
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| Keywords: | long span bridge computational fluid dynamic buffeting local stress |
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