地铁引起建筑结构振动及室内辐射噪声的数值分析  

Numerical Analysis of Structural Vibration and Radiated Noise Induced by Subway

作　　者：肖永武 汪洁[2,3] 唐和生[3] 赵伟屹[3,4] 

机构地区：[1]中铁电气化局京沪高铁维管公司,北京100039 [2]上海南汇汇集建设投资有限公司,上海201300 [3]同济大学结构工程与防灾研究所,上海200092 [4]中冶焦耐工程技术有限公司,大连116085

出　　处：《结构工程师》2014年第6期77-84,共8页Structural Engineers

摘　　要：针对地铁沿线建筑物室内振动与二次辐射噪声问题,采用数值方法建立了建筑物有限元模型与建筑物室内声学边界元模型,研究建筑物振动与二次辐射噪声规律;同时,结合工程实测数据,对数值模拟结果进行比较研究;采用间接边界元法分析了室内二次辐射噪声响应及其空间分布特性,并与实测点声压进行比较。On the purpose of studying on ground-borne vibration and noise in buildings induced by under-ground railways, the FEM and BEM models were used to simulate structural vibration and noise in a building respectively in this paper. Using the ground in-situ measurement accelerations as inputs, a 3-D finite element model of a structure was established. Vibrations of the floor and the wall were simulated and the results were compared with the experimental data. An acoustic BEM model with the vibration response on the structure sur-face as boundary conditions was established. The ground-borne noise in a building was simulated and results were also compared with the experimental data.

关 键 词：地铁振动 二次辐射噪声 有限元 边界元 

分 类 号：TU311.3[建筑科学—结构工程] TU112.3