| 南广高速铁路郁江大桥车桥耦合振动仿真分析 |
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| 引用本文： | 崔圣爱,单德山,祝兵.南广高速铁路郁江大桥车桥耦合振动仿真分析[J].西南交通大学学报,2011,46(3):385-390. |
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| 作者姓名： | 崔圣爱 单德山 祝兵 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目，中央高校基本科研业务费专项资金资助项目，西南交通大学青年教师科研起步项目 |
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| 摘 要： | 为探讨列车高速通过大跨度双塔钢桁斜拉桥时的耦合振动效应,为同类桥梁的设计提供参考,以南宁—广州高速铁路郁江大桥(大跨度钢桁斜拉桥)为研究对象,建立了车桥系统耦合振动仿真模型.采用有限元软件ANSYS建立斜拉桥的动力分析模型,计算其自振特性;采用多体系统动力学软件SIMPACK建立德国ICE3列车的空间动力学模型;采用SIMPACK与ANSYS相结合的联合仿真方法,计算不同运行速度时车桥系统的空间耦合振动响应.结果表明:当列车分别以250,270,290和300 km/h的速度通过该桥时,其运行安全性指标均满足规范要求;动车和拖车的Sperling舒适性指标均小于2.5;该桥梁的最大竖向挠跨比为1/1 843,最大横向挠跨比为1/83 000,最大竖向和横向加速度分别为0.386和0.107 m/s2,冲击系数最大值为1.200,表明该桥梁具有足够的刚度,振动状态良好.
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| 关 键 词： | 郁江大桥 大跨度钢桁斜拉桥 耦合振动 联合仿真 多体系统动力学 有限元法 |
Simulation of Vehicle-Bridge Coupling Vibration for Yujiang River Bridge on Nanning-Guangzhou High-Speed Railway |
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| CUI Shengai,SHAN Deshan,ZHU Bing.Simulation of Vehicle-Bridge Coupling Vibration for Yujiang River Bridge on Nanning-Guangzhou High-Speed Railway[J].Journal of Southwest Jiaotong University,2011,46(3):385-390. |
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| Authors: | CUI Shengai SHAN Deshan ZHU Bing |
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| Institution: | CUI Shengai,SHAN Deshan,ZHU Bing(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to research the coupled vibration effects when a train runs through a long-span twin tower steel truss cable-stayed bridge at a high speed to provide a reference for the design of the same type of bridges,a numerical simulation model for coupled vibration was set up by taking Yujiang River bridge,a long-span steel truss cable-stayed bridge,on Nanning-Guangzhou high-speed railway as a study object.A dynamic analysis model for the bridge was established with the finite element software ANSYS,and its ... |
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| Keywords: | Yujiang River bridge long-span steel truss cable-stayed bridge coupled vibration co-simulation multi-body system dynamics finite element method |
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