芜湖桥板桁组合结构的研究  

Study on the concrete slab-steel truss composite structures for Wuhu Yangtze River Bridge

作　　者：叶梅新[1] 江锋[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《铁道学报》2001年第5期65-69,共5页Journal of the China Railway Society

基　　金：铁道部科技发展计划项目 (96G35- N)

摘　　要：芜湖桥为双层 (上层公路 )双线铁路桥。全桥范围用栓钉将上层公路桥面板与主桁上弦杆和纵、横梁连成整体 ,共同受力 ,这种结构称为板桁组合结构。与常用的 T型截面组合梁相比 ,板桁组合结构有许多特点 ,现有规范满足不了设计要求 ,所以做了大量的试验研究 ,专门为其制定了设计规范 ,并已应用于该桥的设计与施工。该桥已于 2 0 0 0年 9月底竣工通车 ,运营状况优良。Wuhu Yangtze River Bridge (WYRB) has two layers. The top layer is roadway, while the bottom layer is double track railway. The concrete slabs of the top layer are connected by studs to the top chords of the steel trusses, longitudinal and lateral steel beams throughout the main bridge, which is called the slab truss composite structures. Compared with T type composite beams, the slab truss composite structure of WYRB has many specialities. The current design codes in the world are not available to solve many of the problems of the slab truss composite structures of WYRB. Many experiments and research works have been done, and a special design code for the slab truss composite structures of WYRB has been written and used in the design and construction of WYRB. This bridge was completed in September 2000, and it is now in good service condition. This paper introduces the specialities and some of the research results.

关 键 词：芜湖长江大桥 板桁组合结构 双层双线铁路桥 

分 类 号：U448.13[建筑科学—桥梁与隧道工程] U448.216[交通运输工程—道路与铁道工程]