三主桁梁桥车桥耦合振动分析  

Vehicle-Bridge Coupled Vibration Analysis for a Three-Principal-Trusses Arch-Bridge

作　　者：邓子铭[1] 郭向荣[1] 唐俊峰[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《噪声与振动控制》2010年第6期9-12,共4页Noise and Vibration Control

摘　　要：相比传统的两片主桁的截面形式,采用三片主桁截面形式的桥梁力学性能和空间稳定性更好。根据列车桥梁时变系统的分析理论,分别建立列车和桥梁动力分析的有限元模型,采用计算机模拟的方法,研究列车以不同车速通过三主桁拱桥时车桥耦合系统的空间振动响应。所得结果可供设计参考。Three-principal-trusses bridge has better mechanical properties and spatial stability than the traditional two-principal-trusses bridge.According to the time dependent theory of train-bridge system,the finite element models for the dynamic analysis of train and bridge are established respectively.By computer simulation,the spatial vibration responses of the coupled system,when trains run through the three-principal-trusses arch-bridge at different speeds,are studied.The results provide a reference for design.

关 键 词：振动与波 三主桁 拱桥 列车 

分 类 号：U441.3[建筑科学—桥梁与隧道工程] O241.82[交通运输工程—道路与铁道工程]