EFFECT ON MECHANICAL CHARACTERISTICS OF BALLASTLESS TRACK CAUSED BY BRIDGE DEFORMATION IN HIGH SPEED RAILWAY

机译：高速铁路桥梁变形对无B轨道力学特性的影响

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Application of ballastless track in high speed railway is in initial step of our country, especially ballastless track laid on bridge. Great effect on mechanical characteristics of ballastless track can be caused by bridge deformation. Based on establishment of the finite model of ballastless track on bridge, calculation and analysis are carried out on effect of mechanical characteristics of ballastless track caused by settlement of pier, rotation of beam and deflection of beam. Suggestions are proposed for the design of ballastless track on bridge. Such conclusions can be obtained: within the specified limited value, effect on mechanical characteristics of ballastless track caused by differential settlement of pier is greater than the effect on rotation of beam. The bending moment calculated from finite element model is probably greater than that from simplified calculation method. As a result, the simplified calculation method is not always a way of high reliability.

机译：无of轨道在高速铁路中的应用尚处于起步阶段，特别是铺设在桥梁上的无ball轨道。桥梁变形可能会对无ball轨道的机械特性产生巨大影响。在建立桥梁无ball轨道有限元模型的基础上，对桥墩沉降，梁的旋转和梁的挠度引起的无ball轨道的力学特性的影响进行了计算和分析。提出了桥梁无ball轨道设计的建议。可以得出这样的结论：在规定的极限值内，桥墩的差异沉降对无ball轨道的机械特性的影响大于对梁的旋转的影响。通过有限元模型计算出的弯矩可能大于通过简化计算方法得到的弯矩。结果，简化的计算方法并不总是高可靠性的方法。

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来源
《第一届现代铁路创新与可持续发展国际会议（The First International Symposium on Innovation amp; Sustainability of Modern Railway）》|2008年|178-182|共5页
会议地点 Nanchang(CN);Nanchang(CN)
作者
Ren Ruitang; Gao Liang; Chen Peng; Hao Jianfang;
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作者单位

School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China;

School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China;

School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China;

School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
high speed railway; ballastless track; bridge; deformation; FEM;

机译：高速铁路；无ball轨道；桥梁；变形；有限元;

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EFFECT ON MECHANICAL CHARACTERISTICS OF BALLASTLESS TRACK CAUSED BY BRIDGE DEFORMATION IN HIGH SPEED RAILWAY

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