列车荷载图式对桥上无缝线路纵向力的影响分析  

Effects Analysis of Train Load Diagrams on the Longitudinal Force of CWR on Bridge

作　　者：朱彬[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《铁道建筑技术》2017年第12期20-23,48,共5页Railway Construction Technology

摘　　要：桥上无缝线路纵向力计算分析是桥梁和轨道专业的重要工作内容,本文以新发布的《铁路列车荷载图式》为背景,针对新发布的荷载图式与以往中-活载的差异,结合轨道和桥梁的实际设计参数,深入计算分析不同荷载图式的无缝线路纵向力,并将新荷载图式与中-活载的计算结果进行对比,掌握不同荷载图式对无缝线路纵向力的影响规律。研究成果为采用新的荷载图式进行无缝线路纵向力计算、桥梁和轨道设计检算提供支持。In the fields of bridge and track,it is important to analyze the longitudinal force of CWR on bridge. This study is based on the train load diagrams that is newly published,according to the difference between the new train load diagrams and the old load,and the actual design parameters of the track and bridge,this study intensively calculates and analyzes the longitudinal force of CWR with different train load diagrams,after comparing the calculated results of the new train load diagrams with the old load,it gains the influencing rule of the longitudinal force of CWR under different train load diagrams.The study results could provide the support for the calculation of the longitudinal force of CWR and the designs and checks of the bridge and track with the new railway train load diagrams.

关 键 词：列车荷载图式 无缝线路 挠曲力 制动力 

分 类 号：U213.9[交通运输工程—道路与铁道工程]