| 多联大跨连续梁桥上无缝线路纵向附加力规律研究 |
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| 引用本文： | 唐乐.多联大跨连续梁桥上无缝线路纵向附加力规律研究[J].交通科技,2012(3):16-18. |
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| 作者姓名： | 唐乐 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司 武汉430063 |
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| 摘 要： | 高速铁路多联大跨连续梁日益增多,而该工况下桥上无缝线路设计经验较少,亟须该种工况下桥上无缝线路纵向附加力变化规律。文中建立了钢轨-扣件阻力-梁体-墩台一体化空间非线性有限元梁轨相互作用模型,并利用ANSYS分析软件进行求解,计算分析了不同扣件阻力及不同桥跨布置工况下桥上无缝线路纵向附加力,并总结出纵向附加力变化规律。
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| 关 键 词： | 多联大跨连续梁 桥上无缝线路 纵向力 |
Research for the Additional Longitudinal Force Rule of CWR on Multi-continuous Beams |
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| Tang Le.Research for the Additional Longitudinal Force Rule of CWR on Multi-continuous Beams[J].Transportation Science & Technology,2012(3):16-18. |
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| Authors: | Tang Le |
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| Institution: | Tang Le(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China) |
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| Abstract: | Multi-continuous beams are increasingly emerging in the high-speed railway,but the experience of CWR design on these situation is very less,it is necessary to study the rule of CWR additional longitudinal force.This paper established the "Rail-Fastener resistance-Beam-Pier" combination tridimensional model,and calculated by Ansys software.The influence to the additional longitudinal force for different fastener resistance and arrangement of continuous beam are analyzed.At last,the law of the longitudinal force is summarized. |
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| Keywords: | multi-continuous beams CWR longitudinal force |
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