武广高速铁路周边建筑物环境振动特性分析

摘要

为了研究高速铁路运营诱发沿线地面以及建筑物二次振动响应特性,通过对武广高速铁路金沙洲路段周边环境与建筑物二次振动进行现场测试与分析,并基于ABAQUS大型非线性有限元分析软件,引入无限元动力分析边界条件,构建列车-轨道-地基-建筑物三维动力有限元模型,对高速铁路环境振动特性进行数值模拟研究,获得了高速铁路周边地面以及邻近建筑物的二次振动响应特性.其研究成果对完善高速铁路环境振动影响评价以及控制方法具有一定的参考价值.%Characteristics of the secondary vibration responses of the ground and the buildings induced by the high-speed railway operation are studied. The field test and analysis of the environment vibration of Jinshazhou section of Wuhan-Guangzhou high speed railway track are carried out. Based on the nonlinear finite element analysis software of ABAQUS and introducing the dynamic boundary conditions of infinite element, a train-track-foundation-building coupled 3D dynamic finite element model is established. And the environment vibration characteristics of the high speed railway are simulated numerically. The secondary vibration response characteristics of the surrounding ground and adjacent buildings are obtained. Results of the research have some reference values for the assessment and control of environmental vibration of high speed tracks.