芜湖长江大桥整体模型(施工阶段)试验研究  

Test Study of Integral Model of Wuhu Changjiang River Bridge at Construction Stage

作　　者：王戒躁[1] 

机构地区：[1]铁道部大桥局桥科院,湖北武汉430034

出　　处：《桥梁建设》1999年第4期26-31,共6页Bridge Construction

摘　　要：通过芜湖长江大桥斜拉桥整体模型试验，研究了板桁组合结构斜拉桥施工阶段的动静力特性，分析了上弦杆与桥面板应力分布、板桁之间传力机理及板桁共同工作特点。分析结果表明：芜湖长江大桥桥面板轴向力主要由上弦杆剪力钉传递。By means of integral model testing of the cable stayed span of Wuhu Changjiang River Bridge, properties of static and dynamic load of the span composed of combined plate truss structures at construction stage are studied. Stress distributions on upper chords and deck plates, mechanism of load transferring between the plates and trusses and joint function of both of them are analyzed. The analytical results show that the axial force of the deck plates of Wuhu Changjiang River Bridge is mainly transferred from shearing bolts of the upper chords and problems of shearing lag thereof are not so obvious at construction stage.

关 键 词：斜拉桥 模型试验 应力 载荷 公铁路两用桥 

分 类 号：U448.121[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]