| 城轨桥梁更换支座对桥上无缝线路的影响 |
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| 引用本文： | 闫子权,谷爱军.城轨桥梁更换支座对桥上无缝线路的影响[J].都市快轨交通,2008,21(5):48--52. |
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| 作者姓名： | 闫子权 谷爱军 |
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| 作者单位： | 北京交通大学,北京,100044 |
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| 摘 要： | 针对目前城市轨道桥梁支座损坏严重、需要更换的问题，从桥梁顶起状态下的钢轨温度力、伸缩附加力、桥梁支座顶起附加力、扣件受力等方面，对桥上无缝线路做了具体计算；分析不同工况下更换支座对桥上无缝线路轨道结构及部件的影响，并根据计算结果提出施工建议。
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| 关 键 词： | 城市轨道 高架桥支座 桥上无缝线路 有限元分析 |
| 修稿时间： | 2013/12/6 0:00:00 |
Effects of Replacing the Bearings of Urban Railway Viaduct on Continuous Welded Rail |
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| Yan Ziquan,Gu Aijun.Effects of Replacing the Bearings of Urban Railway Viaduct on Continuous Welded Rail[J].Urban Rapid Rail Transit,2008,21(5):48--52. |
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| Authors: | Yan Ziquan Gu Aijun |
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| Abstract: | Considering the demand of replacing the damaged bearings of urban railway viaducts,the authors performed a detailed analysis on the rail temperature forces,the additional shrinkage forces,the additional forces in continuous welded rails and fastenings caused by replacing and uplifting viaduct bearings.Different working conditions have been taken into account.Some suggestions are given according to the computation results. |
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| Keywords: | urban railway viaduct bearings continuous welded rail on viaduct finite element analysis |
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