| 城轨U梁与箱梁桥上无缝线路受力及桥梁固有振动特性分析 |
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| 引用本文： | 闫子权,任兵杰,梁青槐.城轨U梁与箱梁桥上无缝线路受力及桥梁固有振动特性分析[J].兰州铁道学院学报,2011,30(1). |
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| 作者姓名： | 闫子权 任兵杰 梁青槐 |
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| 作者单位： | 闫子权,梁青槐,YAN Zi-quan,LIANG Qing-huai(北京交通大学,土木建筑工程学院,北京,100044);任兵杰,REN Bing-jie(北京城建设计研究总院,北京,100037) |
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| 摘 要： | 针对城市轨道交通中新型U梁及传统型式箱梁两种不同型式桥梁,分别从线路纵向阻力及桥墩水平刚度等方面,对桥上无缝线路钢轨受力、桥墩受力、桥梁挠度及两种桥梁固有振动特性等方面进行对比研究.研究结果表明:与箱形梁相比,U型梁的钢轨挠曲力较小,而桥墩受力较大.U型梁固有振动频率比箱型梁小,且U型梁的2阶横向振动出现较早.该结果为城市轨道交通设计提供理论参考依据.
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| 关 键 词： | 城市轨道 U型梁 箱型梁 无缝线路 固有振动特性 |
Analysis of the Forces of CWR on Bridge and Natural Vibration Characteristic of U-beam Bridge and Box-girder Bridge of Urban Railway |
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| YAN Zi-quan,REN Bing-jie,LIANG Qing-huai.Analysis of the Forces of CWR on Bridge and Natural Vibration Characteristic of U-beam Bridge and Box-girder Bridge of Urban Railway[J].Journal of Lanzhou Railway University,2011,30(1). |
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| Authors: | YAN Zi-quan REN Bing-jie LIANG Qing-huai |
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| Institution: | YAN Zi-quan1,REN Bing-jie2,LIANG Qing-huai1(1.School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China,2.Beijing Urban Engineering Design & Research Institute CO.,LTD.,Beijing 100037,China) |
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| Abstract: | |
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| Keywords: | urban railway U-beam bridge box-girder bridge CWR natural vibration characteristic |
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