双层斜拉桥车辆碰撞动力响应分析  

Double Cable-stayed Bridge Vehicle Collision Dynamic Analysis

作　　者：沈正峰 康斌锴 戈海玉 

机构地区：[1]皖西学院建筑与土木工程学院,安徽六安237012 [2]长安大学公路学院,陕西西安710064

出　　处：《皖西学院学报》2017年第5期141-143,共3页Journal of West Anhui University

基　　金：皖西学院校级项目(WXZR201624)

摘　　要：通过已有文献进行箱梁截面设计,并用Midas计算截面特性赋予Ansys单元,建立双层箱梁斜拉桥有限元模型。根据现有车-桥碰撞力计算方法,分别施加不同形式的车辆碰撞力,分析斜拉桥在不同荷载工况下的位移、速度、加速度特性,为此新型桥梁结构防撞设计提供参考。Through the existing literature for box girder section design, calculate the cross-section characteristics of the box girder by Midas and establish the finite element model of double-decked girder cable-stayed bridge by Ansys. According to the calculation method of existing vehicle-bridge collision force,applying different forms of vehicle collision force and analysis the displacement, velocity and acceleration characteristics of the cable-stayed bridge. It can provide the reference for this new type of bridgestructure anti-collision design.

关 键 词：双层斜拉桥 碰撞力 动力分析 阻尼比 位移 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]