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趙雅娜， 劉艷輝， 趙世春
（西南交通大學土木工程學院，成都 610031）[摘要] 由于我國大型高鐵客站采用列車站房結構內(nèi)過站方式，過站設計時速高達200km/h以上，列車高速通過時如若發(fā)生站內(nèi)脫軌撞擊主體結構，可能引發(fā)站房結構連續(xù)倒塌甚至整體倒塌。結合高鐵客站結構特點，研究了撞擊損毀子結構重要性系數(shù)及分布特點，指出高架候車區(qū)的薄弱區(qū)域為結構邊角部位，并采用連續(xù)倒塌動力分析方法，研究了列車脫軌撞擊損毀站房薄弱區(qū)域時結構的動力效應，提出了站房抗列車沖擊的結構優(yōu)化布置原則。
[關鍵詞] 高速鐵路客站；列車脫軌；撞擊；倒塌
中圖分類號：TU312.3 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0242-04Reactions 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
