| 初始条件对高速铁路车桥耦合动力响应的影响 |
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| 引用本文： | 姚永红,苏木标,秦爱红,陈明长.初始条件对高速铁路车桥耦合动力响应的影响[J].国防交通工程与技术,2007,5(1):42-45. |
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| 作者姓名： | 姚永红 苏木标 秦爱红 陈明长 |
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| 作者单位： | 石家庄铁道学院大型结构研究所,河北,石家庄,050043;石家庄铁道学院土木工程分院,河北,石家庄,050043 |
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| 摘 要： | 列车驶入桥梁时,必然带有一定的初始条件,此值对计算车桥耦合振动中桥梁的动力响应有较大的影响。针对这一问题,通过在路基上运行不同的长度区间,以不同的行车速度、不同的车辆类型,对高速铁路车桥耦合振动的初始条件加以分析。可知当行车速度相同时,取不同的行车区间,竖向位移几乎不受影响,横向位移与所选取的运行区间有关。桥梁跨中横向位移还与选取的车型有关。
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| 关 键 词： | 车辆 桥梁 耦合振动 初始条件 |
| 文章编号： | 1672-3953（2007）01-0042-04 |
| 修稿时间： | 2006-09-04 |
The Effects of Initial Conditions on High-speed Railway Vehicle-Bridge Coupling Dynamic Response |
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| YAO Yong-hong,SU Mu-biao,QIN Ai-hong,CHEN Ming-zhang.The Effects of Initial Conditions on High-speed Railway Vehicle-Bridge Coupling Dynamic Response[J].Traffic Engineering and Technology for National Defence,2007,5(1):42-45. |
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| Authors: | YAO Yong-hong SU Mu-biao QIN Ai-hong CHEN Ming-zhang |
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| Institution: | 1. Structural Health Monitoring and Control Institute, Shijiazhuang Railway Institute, Shijiazhuang 050043,China ; 2. School of Civil Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043,China |
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| Abstract: | A train will bring certain initial conditions when going to a bridge, which has great effects on calculating the dynamic response of a bridge in vehicle-bridge coupling vibration. Aiming at solving this problem, by adopting different wheeling lengths in formation, different velocities, and different types of vehicle, this paper analyses the initial conditions of the high-speed railway vehicle-bridge coupling vibration. It is found that the vertical displacement of the bridge doesn't change, while the lateral displacement of the bridge is related to the wheeling length in formation when adopting the same velocity and different wheeling length in formation. Also, the lateral displacement of the bridge is related to the types of vehicle. |
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| Keywords: | vehicle bridge coupling vibration initial condition |
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