铁道标准设计2017，Vol.61Issue(4)：140-146,7.DOI:10.13238/j.issn.1004-2954.2017.04.030
高速铁路接触网系统地震响应分析
Analysis of Seismic Response of High-speed Railway Catenary System
摘要
Abstract
A finite element model with four posts and three spans is constructed to study the seismic response characteristics of the high-speed railway catenary system.The seismic responses of the catenary mast and contact wire in the main shock direction subject to 27, 30 and 33kN contact wire tension are calculated respectively in the case of class Ⅳ third group site classification.The results are compared with that of the single column model.The results show that the initial bending moment of the catenary mast in the direction perpendicular to the line on the base surface increases with the increasing contact wire length, while the initial bending moment along the line and the initial torque at the bottom are not affected;the seismic responses of the catenary mast and contact wire in the main shock direction decrease with the increasing contact wire tension;the contact wire tension has great influence in case of the earthquake with low-frequency domination.The seismic response of the column-wire model is much greater than that of the single column model.It is suggested that the overall effect be considered in the seismic design of catenary system.关键词
接触网系统/地震响应/接触线张力/整体效应/高速铁路Key words
Catenary system/Seismic response/Contact wire tension/Overall effect/High-speed Railway分类
交通工程引用本文复制引用
张俊,谢强..高速铁路接触网系统地震响应分析[J].铁道标准设计,2017,61(4):140-146,7.基金项目
铁道部科技研究开发计划项目(J2011J006) （J2011J006）
中央高校基础研究资助项目(2011TJ11021) （2011TJ11021）
