曲线刚构桥上无缝线路附加纵向力研究  

Study on the Additional Longitudinal Forces of the Continuously-welded Rails on the Curvilinear Frame Bridge

作　　者：李保友[1] 唐进锋[1] 宁明哲[1] 张建[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《安徽建筑》2006年第6期110-111,共2页Anhui Architecture

摘　　要：建立以轨道、桥梁、支座、墩台和基础为整体结构的附加纵向力计算有限元模型;依据“对号入座”法则编制了计算曲线刚构桥上无缝线路的程序;计算了南昆线上板其二号大桥附加伸缩力、挠曲力和断轨力;计算结果准确,体现桥上无缝线路梁轨相互作用原理。The finite element model is established to calculate the additional longitudinal forces of the integrated system consisting of the track, beams, abutments, piers and foundation; the program to calculate CWR on the curvilinear frame bridge is plngrammed according to the rule ＂set-in-right-position＂; the additional expansion force, bending fowe and rail-breaking strength of the No.2 Banqi Bridge along Railway Nanning-Kunming are calculated. The calculation results proved to accurate and embodied the interaction principle of the beam and the CWR on bridge.

关 键 词：桥上无缝线路 附加纵向力 刚构桥 有限元 

分 类 号：U441[建筑科学—桥梁与隧道工程]