| 城市轨道交通U型梁动力性能研究与实验验证 |
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| 引用本文： | 王彬力,蒲黔辉,白光亮.城市轨道交通U型梁动力性能研究与实验验证[J].地震工程与工程振动,2011,31(6):174-180. |
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| 作者姓名： | 王彬力 蒲黔辉 白光亮 |
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| 作者单位： | 1. 西南交通大学土木工程学院,四川成都,610031
2. 西南交通大学土木工程学院,四川成都610031;招商局重庆交通科研设计院有限公司,桥梁工程结构动力学国家重点实验室,重庆400067 |
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| 基金项目： | 抗震工程技术四川省重点实验室(西南交通大学)开放基金项目 |
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| 摘 要： | 为探讨城市轨道交通U型梁车桥系统的动力响应,采用线性化轮轨模型建立了31个自由度的轮轨式车辆动力学模型.模型考虑了新型算法的横竖向轨道不平顺,以重庆市轨道交通一号线工程中梁山以西高架区间所采用标准跨径为30m的单线小U结构为对象,采用自编程序对机车车辆过桥时的车桥耦合振动进行了分析,并通过计算与实测结果的对比分析对所建...
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| 关 键 词： | 城市轨道交通 U型梁 车桥耦合振动 轨道不平顺 |
Dynamic analysis and experimental verification of U-girder for urban rail transit |
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| WANG Binli,PU Qianhui,BAI Guangliang.Dynamic analysis and experimental verification of U-girder for urban rail transit[J].Earthquake Engineering and Engineering Vibration,2011,31(6):174-180. |
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| Authors: | WANG Binli PU Qianhui BAI Guangliang |
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| Institution: | 1,2(1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China; 2.State Key Laboratory of Bridge Structural Dynamics,Key Laboratory of Bridge Earthquake Resistance Technology,Chongqing 400067,China) |
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| Abstract: | This paper purposes exploring dynamic response of U-girder in vehicle-bridge system for urban rail transit.In order to study the dynamic response,a rail vehicle dynamic model with 31 DOFs(degrees of freedom) is established by employing linear rail model.A new algorithm of horizontal and vertical rail irregularity is taken into account in this model.A standard span of 30 m single line U-shaped structure,which is in the elevated section of Chongqing City Metro Line Project in the west of Liang hill,is taken as the study object.The analysis of coupling vibration in vehicle-bridge system is calculated by using a self-compiled program and compared with field test results to show the correctness of the established dynamic model and the self-compiled program. |
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| Keywords: | urban rail transit U-girder vehicle-bridge coupling vibration rail irregularity |
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