基于ANSYS的钢桁架桥汽车撞击分析  

Automobile Impact Analysis of Steel Truss Bridge Based on ANSYS

作　　者：唐杨 Tang Yang(College of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074 China)

机构地区：[1]重庆交通大学,重庆400074

出　　处：《石家庄铁路职业技术学院学报》2020年第1期55-59,共5页Journal of Shijiazhuang Institute of Railway Technology

摘　　要：以某钢桁架桥为工程背景,建立ANSYS有限元分析模型,按照《公路桥涵设计通用规范》(JTG D60-2015)分别施加横桥向撞击力和顺桥向撞击力,研究钢桁架桥在汽车撞击荷载作用下的受力行为和稳定性。研究表明:横桥向撞击作用下结构的变形和应力均大于顺桥向的结构变形和应力,横桥向撞击作用下结构的稳定性比顺桥向撞击作用下结构的稳定性差。Taking a steel truss bridge as the engineering background, the ANSYS finite element analysis model was established. According to the "General Code for Design of Highway Bridges and Culverts"(JTG D60-2015), longitudinal impact load and transverse impact load were applied respectively to study forced behavior and stability of the steel truss bridge. The research shows that the deformation and stress of the structure under the action of the transverse impact load are larger than those of the longitudinal impact load. The stability of the structure under the action of the transverse impact load is worse than that under the action of the longitudinal impact load.

关 键 词：公路桥梁 钢桁架桥 汽车撞击 特征值分析 

分 类 号：U446[建筑科学—桥梁与隧道工程]