地震作用下高速铁路列车—无砟轨道—桥梁系统动力响应及列车走行安全研究

Research on the Dynamic Response of High-Speed Railway Train-Ballastless Track-Bridge System and Train Running Safety under Earthquake

在总结和吸收既有研究成果的基础上，以铺设CRTSⅡ板式无砟轨道的高速铁路简支梁桥为工程背景，对地震作用下高速铁路列车一无砟轨道一桥梁的动力响应及列车走行安全性进行系统研究，提出地震时不同条件下高速列车在桥上安全运行限速的建议值。本文的主要研究内容如下。

In this paper, based on summing up and ab- sorbing the existing research, the high-speed rail- way simply supported girder bridge and CRTS Ⅱ slab ballastless track is taken as an example to ana- lyze the seismic response and running safety of the high-speed train ballastless track-bridge system subjected to earthquake. The suggested values of the safety running limit values of the high-speed train on bridge under earthquake action are presen- ted. The following research work is done in this paper.