| 轨道交通U型梁桥下部结构纵向水平线刚度合理值研究 |
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| 引用本文： | 马坤全,陈宇,潘湘文. 轨道交通U型梁桥下部结构纵向水平线刚度合理值研究[J]. 城市轨道交通研究, 2010, 13(1): 36-40 |
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| 作者姓名： | 马坤全 陈宇 潘湘文 |
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| 作者单位： | 同济大学土木工程学院,200092,上海;同济大学土木工程学院,200092,上海;同济大学土木工程学院,200092,上海 |
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| 摘 要： | 针对轨道交通U型梁桥的具体结构形式,建立了桥上无缝线路梁轨相互作用空间非线性有限元计算模型。分析了轨道交通U型梁桥的无缝线路纵向附加力,并对轨道交通U型梁桥下部结构纵向水平线刚度合理值进行探讨。研究结果表明,我国《地铁设计规范》及《京沪高速铁路设计暂行规定》等规定的桥墩墩顶最小纵向水平线刚度值应用于轨道交通高架桥设计明显偏大,可适当放宽。
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| 关 键 词： | 城市轨道交通 U型梁桥 无缝线路 梁轨相互作用 纵向附加力 纵向水平线刚度 |
Reasonable Infrastructure Longitudinal Stiffness of Rail Transit Viaduct with U-shape Girder |
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| Ma Kunquan,Chen Yu,Pan Xiangwen. Reasonable Infrastructure Longitudinal Stiffness of Rail Transit Viaduct with U-shape Girder[J]. Urban Mass Transit, 2010, 13(1): 36-40 |
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| Authors: | Ma Kunquan Chen Yu Pan Xiangwen |
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| Affiliation: | Ma Kunquan,Chen Yu,Pan Xiangwen Department of Bridge Engineering,Tongji University,200092,Shanghai,China |
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| Abstract: | A dimensional nonlinear finite element mechanics model for calculating the additional longitudinal force transmission between continuous welded rails and CWR viaduct is established,according to the practical structure of viaduct with U-shape girder in urban mass transit.The additional longitudinal force of a typical CWR viaduct with U-shape girder is calculated,the reasonable infrastructure longitudinal stiffness of this viaduct is discussed.The result of the research shows that the minimum infrastructure l... |
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| Keywords: | urban mass transit viaduct with U-shape girder continuous welded rails girder-rail interaction additional longitudinal force longitudinal stiffness |
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