立转开启式桥梁钢桥面铺装层力学响应分析  

Mechanical Response of Steel Bridge Pavement on Bascule Bridge

作　　者：于立群[1] 郭洪宗[1] 隋洪瑞[1] 刘腾爱[2] 钱振东[2] 刘云[2] 

机构地区：[1]天津海河下游开发有限公司,天津300450 [2]东南大学智能运输系统研究中心,南京210096

出　　处：《交通科技》2009年第1期9-12,共4页Transportation Science & Technology

摘　　要：结合天津海响螺湾开启桥,采用三维有限元分析方法建立了车辆荷载作用下开启桥正交异性钢桥面铺装体系的仿真模型,分析了不含纵隔板和含纵隔板两种情况下的铺装层力学响应。建立了1/4含铺装层的开启桥整桥模型,分析了整个动态开启过程。分析结果表明,以不同力学响应为铺装层力学控制指标时,采用的仿真模型也不同;开启角度最大时,铺装层最大剪应力达到最大值,比刚开启时增加了50%。The simulation model of steel deck pavement of the Tianjin Xiangluo Bay Bascule Bridge under vehicle load is established by using finite element method according to the structural characteristics of the bridge. The mechanical response of pavement system with or without longitudinal partition was analyzed. Besides, the 1/4 whole bridge simulation model was established, and the dynamical opening process was analyzed. This research results show that the simulation model should be chosen based on mechanical control index. The maximum shear stress of pavement when opening angle is 85° increases by 50% compared to the shear stress when the opening angle is 10°.

关 键 词：立转开启式桥梁 正交异性钢桥面板 有限元 力学分析 

分 类 号：U443.33[建筑科学—桥梁与隧道工程] U416.217[交通运输工程—道路与铁道工程]