高速列车—轨道—桥梁动态相互作用原理及模型  

MECHANISM AND MODEL OF HIGH-SPEED TRAIN-TRACK-BRIDGE DYNAMIC INTERACTION

作　　者：翟婉明[1] 蔡成标[1] 王开云[1] 

机构地区：[1]西南交通大学,四川成都610031

出　　处：《土木工程学报》2005年第11期132-137,共6页China Civil Engineering Journal

基　　金：国家自然科学基金项目(50178061);教育部创新团队计划资助项目(IRT0452);铁道部科技研究开发计划项目(2001G040)

摘　　要：分析了高速列车通过桥梁过程中机车车辆与轨道结构及桥梁之间的动态相互作用机制;在此基础上建立了高速列车—轨道—桥梁动态相互作用模型;以秦沈客运专线高速行车试验为基础对模型进行了验证分析,结果表明:模型计算结果与现场实测结果具有较好的一致性,由此说明在高速列车/桥梁振动分析中充分考虑轨道结构参振并引入精确的动态轮轨作用关系,可以更好地模拟高速列车过桥动态行为。The dynamic train-track-bridge interactive mechanism is analyzed when a train passes over a bridge with high speed. A high-speed train-track-bridge interaction model is developed and then verified by the high-speed running experiment carried out on the Qinhuangdao--Shenyang passenger transport line. It is shown that the calculated results agree well with the measured results. In order to simulate the dynamic behavior of high-speed trains passing over bridges more realistically, it is necessary to incorporate the track model and the detailed wheel/rail dynamic interaction model into the high-speed train-bridge vibrating model.

关 键 词：高速列车 桥梁 动态相互作用 振动 模型 

分 类 号：U441.7[建筑科学—桥梁与隧道工程]