芜湖长江大桥设计与关键技术研究  

Design of Wuhu Changjiang Bridge and Research on its Key Technical Problems

作　　者：林国雄[1] 方秦汉[1] 秦顺全[1] 屈匡时[1] 

机构地区：[1]铁道部大桥局

出　　处：《桥梁建设》1998年第4期1-8,共8页Bridge Construction

摘　　要：芜湖长江大桥是国内首次采用板桁结构建造的一座公、铁两用桥梁。铁路桥全长为１０５２１ｍ，公路桥全长为５６８１ｍ。正桥主航道采用主跨３１２ｍ、低塔、斜拉索加劲的连续钢桁梁结构，主桁为Ｎ型桁架，公路路面采用预制混凝土桥面板。副航道为主跨１４４ｍ的连续钢桁梁，主桁为无竖杆三角形桁架。本桥设计中采用了一系列新材料、新结构和新工艺。针对本桥设计和荷载、刚度、焊接及板桁结构等关键技术问题的研究论证作了简要介绍。The Wuhu Changjiang Bridge is a railway highway combined bridge in which plate truss structure is first adopted in China.Total length of railway bridge is 10 521 m and that of highway bridge is 5 681 m.The main channel of bridge proper is a cable stayed bridge of low tower,stiffening continuous steel truss beam structure which main span is 312 m and the main truss is a N type truss.The highway surface is a precast concrete bridge deck.Auxiliary channel is a continuous steel truss beam with 144 m main span,the main truss is a triangle truss without vertical post.In design of this bridge,a series of new materials,new structures and new technology were adopted.The design and research of key technical problems such as load,rigidity,welding and plate truss structure about this bridge are briefly introduced.

关 键 词：钢梁 斜拉桥 桥梁设计 载荷分析 刚度 焊接 

分 类 号：U442.54[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]