| 过往车辆对人行天桥产生的追风效应原理及影响分析 |
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| 引用本文： | 赵锐,张毅刚.过往车辆对人行天桥产生的追风效应原理及影响分析[J].新疆大学学报(理工版),2014(1):116-122. |
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| 作者姓名： | 赵锐 张毅刚 |
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| 作者单位： | [1]新疆大学建筑工程学院,新疆乌鲁木齐830049 [2]北京工业大学空间结构研究中心,北京100124 [3]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124 |
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| 基金项目： | 北京工业大学城市与工程安全减灾省部共建教育部重点实验室资助项目. |
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| 摘 要： | 从流体力学的观点出发，建立车、桥及流场的二维网格模型，利用FLUENT软件对人行天桥受到过往车辆产生的气流影响进行受力分析及流场速度矢量分析，得出追风效应的产生原理，并总结了使人行天桥钢箱梁产生振动的直接原因。在此基础上，分析了不同车速、车型产生的追风效应对人行天桥的影响。
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| 关 键 词： | 过往车辆 人行天桥 追风效应 流场分析 标准K-ε湍流模型 |
Theory and Influence Analysis of the Aerodynamic Effect Produced Passing Vehicles on Footbridge |
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| ZHAO Rui,ZHANG Yi-gang.Theory and Influence Analysis of the Aerodynamic Effect Produced Passing Vehicles on Footbridge[J].Journal of Xinjiang University(Science & Engineering),2014(1):116-122. |
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| Authors: | ZHAO Rui ZHANG Yi-gang |
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| Institution: | 1. School of Civil Engineering, Xinjiang University, Urumqi Xinjiang 830049, China; 2. Space Structures Research Center, Beijing University of Technology, Beijing 100124, China; 3. Key Lab of Urban Security and Disaster Engineering, MOE, Beijing University of Technology, Beijing 100124, China) |
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| Abstract: | From the viewpoint of the fluid mechanics, establishing a two dimensional mesh model of vehicle and footbridge and flow field, air current influence produced by passing vehicles on footbridge has pressure and flow velocity vector analysis with FLUENT software, works out generation principle of aerodynamic effect, and summarizes the direct cause of vibration on the steel box girder of footbridge. On this basis, it analyzes the influences that the speed and the type of vehicles produce the aerodynamic effect on footbridge. It provides reliable basis for the further response analysis that passing vehicles produced vibration on footbridge girder through airflow movement. |
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| Keywords: | Passing vehicles Footbridge Aerodynamic effect Flow field analysis Standard K-εturbulence model |
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