无推力式钢桁系杆拱桥动力特性及列车走行性分析  

Dynamical Characteristics of Arch Bridge Without Thrust and Analysis of the Train Running Safety

作　　者：冯祁[1] 曾敏[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《中国西部科技》2009年第29期14-15,30,共3页Science and Technology of West China

摘　　要：通过建立客车与无推力式钢桁系杆拱桥的车桥耦合动力分析模型,并根据势能驻值原理及形成结构矩阵的"对号入座法则",导出了系统的空间振动矩阵方程。本文分析了无推力式钢桁系杆拱桥的车桥动力响应特点,并进行了列车走行安全性与乘客舒适性分析。Through building vehicle-bridge coupling dynamic analysis model between train and arch bridge without thrust, and based on the variational principle of the stationary potential energy and the ＂set-in-right position＂ rule of forming structural matrices, the space vibration equations in matrix form of the system are derived. The properties of vehicle-bridge vibration responses of the arch bridge without thrust are analyzed and the train running safety and passenger riding comfort are studied.

关 键 词：无推力式钢桁系杆拱桥 车桥耦合振动 走行安全性 动力特性 

分 类 号：U238[交通运输工程—道路与铁道工程] U448.225[建筑科学—桥梁与隧道工程]