哈尔滨阳明滩大桥全桥模型静载试验研究  

Study of Static Load Test for Overall Bridge Model of Yangmingtan Bridge in Harbin

作　　者：涂林威[1,2] 赵少杰[3] 

机构地区：[1]中铁大桥局集团桥科院有限公司,湖北武汉430034 [2]桥梁结构安全与健康湖北省重点实验室,湖北武汉430034 [3]湖南省交通规划勘察设计院,湖南长沙410008

出　　处：《世界桥梁》2014年第2期66-69,共4页World Bridges

摘　　要：哈尔滨阳明滩大桥为(46+108+248+108+46)m五跨双塔钢-混凝土组合梁自锚式悬索桥,为了解该桥整体静力特性,按照1∶50缩尺比例设计、制作该桥全桥模型,对模型进行各种组合作用下的模拟加载和有限元计算,将试验结果与计算结果进行对比。研究结果表明:静力荷载作用下,模型实测主缆线形、主梁挠度、塔顶纵向位移、吊索索力及应力均与计算值吻合较好,且均满足规范要求,说明该桥具有足够的刚度和安全储备。The Yangmingtan Bridge in Harbin is a two-tower steel-concrete composite girder self-anchored suspension bridge ,with five spans of （46 ＋ 108 ＋ 248 ＋ 108 ＋ 46） m .In order to ex-amine its global static performance ,an overall bridge model was fabricated in accordance with a 1 ∶ 50 scale .The model was used to simulate the load application and do finite element calculation under different load combinations ,and the data gained from the test were compared with the calcu-lated values .The results of the study indicated that the measured data of the main cable geomet -rical shape ,main girder deflection ,longitudinal displacement on the tower top ,hanger cable forces and stress all agreed well with the calculated values and met the code requirements as well ,proving that the bridge has adequate stiffness and safety margin .

关 键 词：自锚式悬索桥 组合梁 静力性能 变形 应力 模型试验 有限元法 

分 类 号：U448.25[建筑科学—桥梁与隧道工程] U446.1[交通运输工程—道路与铁道工程]