铁道标准设计Issue(3)：78-81,4.DOI:10.13238/j.issn.1004-2954.2016.03.017
（48+80+48）m连续梁桥与轨道系统地震响应规律研究
Research on Seismic Response of (48+80+48) m Continuous Girder Bridge and Track System
摘要
Abstract
To investigate seismic response rule of high-speed rail continuous girder bridge and track system, this paper uses nonlinear spring to stimulate longitudinal impedance of railway line to build a stimulation model for (48+80+48)m continuous girder bridge and track system, and analyzes the rule of longitudinal force distribution on the jointless track under the effects of temperature, live load and braking. On this basis, further study is conducted on the response characteristics of dynamic system under the influence of seismic action. The research results show that the relative displacement between beam and rail and the rail stress gain their maximums respectively near the abutment under the effects of temperature, live load and braking, and the frequency spectrum of earthquake has a bigger impact on dynamic responses of beam-rail system.关键词
高速铁路/连续梁桥/线路纵向阻力/梁轨相互作用/地震响应Key words
Rapid transit railway/Continuous beam bridge/Line longitudinal resistance/Interaction between beam and rail/Seismic response分类
交通工程引用本文复制引用
黄兴..（48+80+48）m连续梁桥与轨道系统地震响应规律研究[J].铁道标准设计,2016,(3):78-81,4.基金项目
中国铁路总公司科技研究开发计划课题(2014G001-D) （2014G001-D）
