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趙雅娜， 劉艷輝， 趙世春
（西南交通大學(xué)土木工程學(xué)院，成都 610031）[摘要] 由于我國大型高鐵客站采用列車站房結(jié)構(gòu)內(nèi)過站方式，過站設(shè)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(jié)構(gòu)，可能引發(fā)站房結(jié)構(gòu)連續(xù)倒塌甚至整體倒塌。結(jié)合高鐵客站結(jié)構(gòu)特點，研究了撞擊損毀子結(jié)構(gòu)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(jié)構(gòu)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(jié)構(gòu)的動力效應(yīng)，提出了站房抗列車沖擊的結(jié)構(gòu)優(yōu)化布置原則。
[關(guān)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
