天津响螺湾开启桥开启过程桥面铺装动态响应分析  

Mechanical Response of Steel Bridge Pavement on the Tianjin Xiangluo Bay Bascule Bridge

作　　者：于立群[1] 郭洪宗[1] 隋洪瑞[1] 刘腾爱[2] 刘云[2] 钱振东[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,江苏南京210096

出　　处：《公路工程》2009年第2期65-68,共4页Highway Engineering

摘　　要：针对天津响螺湾立转开启式桥梁的结构特点,采用三维有限元分析方法建立了含铺装层的1/4整桥仿真模型,分析了整个动态开启过程;还分析了车载作用下不含纵隔板和含纵隔板的铺装层力学响应。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 1/4 whole bridge simulation model of steel deck pavement of the Tianjin Xiangluo Bay Bascule Bridge is established by using finite element method according to the structural characteristics of the bridge. The dynamical opening process of pavement system is analyzed when the girder is opening. Besides, the simulation model of steel deck pavement of the Tianjin Xiangluo Bay Bascule Bridge un- der vehicle load is established. The mechanical response of pavement system with or without longitudinal partition 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°. This study can provide guidance and reference for the design and implementation of the pavement on opening bridge.

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]