【作者】 朱翔； 杜永峰； 陆新征； 叶列平；

【Author】 Zhu Xiang;Du Yong-feng;Lu Xin-zheng;Ye Lie-ping;Institute of Earthquake Protection and Disaster Mitigation,Lanzhou University of Technology;Department of Civil Engineering,Tsinghua University;

【机构】 兰州理工大学防震减灾研究所； 清华大学土木工程系；

【摘要】 我国高速铁路的快速发展使中心城市建设了许多大型铁路站房结构。一旦列车脱轨撞击站房结构而导致的严重连续倒塌,将会引起重大人员伤亡和经济损失。而国内外相关研究几乎还是空白。本文采用非线性有限元软件,建立列车、地面和站房结构的精细有限元模型,通过模拟列车脱轨后撞击站房结构,分析了脱轨列车撞击站房柱的破坏状况以及站房结构发生连续倒塌全过程。研究结果表明:脱轨列车正面撞击大型铁路站房结构将会造成站房柱发生破坏,从而导致站房结构发生连续倒塌。更多还原

【Abstract】 In China,a lot of large railway stations have been built in many central cities because the construction of high-speed railway has developed rapidly.If a train derailments accident occurs and impact railway station,it will lead to the progressive collapse of the large railway station.It will cause a lot of casualties and financial loss.But the corresponding research is still very limited at home and abroad.In the paper,the refined finite element models of the train,the ground and railway station is built up with nonlinear finite element software.The whole process of derailed train impact railway station is simulated in order to analyze railway station columns’ failure condition and the progressive collapse process of the railway station after derailed train impact railway station.The simulation results show that the derailed train impact railway station will destroy three columns and cause the progressive collapse of the railway station.更多还原