桥上无缝道岔受力与变形的有限元分析  

Finite Element Analysis of Jointless Turnout on Bridge

作　　者：刘衍峰[1] 高亮[1] 冯雅薇[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《北京交通大学学报》2006年第1期66-70,共5页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

摘　　要：随着高速铁路和城市轨道交通系统的发展,将会出现无缝道岔铺设在桥梁上的情况,桥上无缝道岔成为发展跨区间无缝线路的又一关键技术.本文采用有限元分析的方法,建立桥上无缝道岔的模型,计算桥上无缝道岔的受力和变形,并分析了桥梁结构对无缝道岔的影响.研究结果对桥上无缝道岔的设计及养护维修有一定的指导意义.With the development of high speed railway anct urban rail transit system,turnout being built on bridge are inevitable, Continuous welded turnout on bridge is a key technique for developing continuous welded railway across sections, The model of jointless turnout on bridge is built up by using the finite element method, the forces and displacement of jointless turnout are computed, and the influences on jointless turnout of bridge structure are analyzed. The results can be used to guide the design and the maintenance of jointless turnout on bridge.

关 键 词：桥梁 无缝道岔 有限元 

分 类 号：U213.6[交通运输工程—道路与铁道工程]