赵雅娜，  刘艳辉，  赵世春
   （西南交通大学土木工程学院，成都 610031）

[摘要] 由于我国大型高铁客站采用列车站房结构内过站方式，过站设计时速高达200km/h以上，列车高速通过时如若发生站内脱轨撞击主体结构，可能引发站房结构连续倒塌甚至整体倒塌。结合高铁客站结构特点，研究了撞击损毁子结构重要性系数及分布特点，指出高架候车区的薄弱区域为结构边角部位，并采用连续倒塌动力分析方法，研究了列车脱轨撞击损毁站房薄弱区域时结构的动力效应，提出了站房抗列车冲击的结构优化布置原则。
[关键词] 高速铁路客站；列车脱轨；撞击；倒塌
中图分类号：TU312.3    文献标识码：A    文章编号：1002-848X(2012) Sl-0242-04

Reactions of railway-station under the impact of derailed high-speed train
Zhao Yana, Liu Yanhui, Zhao Shichun
(  College of Civil Engineering, Southwest Jiaotong Uruversity, Chengdu 610031, China)

Abstract: As inter-station passing is used in most of newly built high-speed railway station of China, and the design though speed is about 250km/h, so if derailment happens and high-speed train hits the main structure, progressive or even completely collapse will occur. The investigation was performed to analyze the structure characteristics of the station, research the importance coefficient of damage sub-structure and its distribution. Then dynanuc-progressive-collapse method was adopted to analyze the dynanuc effect. The results show that the weak area is the comer parts of the structure, and failure time of the damaged sub-structure elements affect the dynamic effect of the structure.
Keywords: lugh-speed railway-station; derailed lugh-speed train; impact; collapse