沪通长江大桥总体设计  

Overall Design of Hutong Changjiang River Bridge

作　　者：高宗余[1] 梅新咏[1] 徐伟[1] 张燕飞[1] 

机构地区：[1]中铁大桥勘测设计院集团有限公司,湖北武汉430056

出　　处：《桥梁建设》2015年第6期1-6,共6页Bridge Construction

基　　金：中国铁路总公司科技研究开发计划项目(2013G001-A-2;2014G004-B)~~

摘　　要：沪通长江大桥位于长江下游,通行4线铁路和6车道高速公路。桥位处江面宽约5.8km,大桥需要跨越南侧的长江主航道、北侧的专用航道和中间的横港沙(浅洲)。主航道桥采用主跨1 092m的钢桁梁斜拉桥;专用航道桥采用主跨336m的钢桁拱桥;跨南、北岸大堤及横港沙区段采用跨度112m的简支钢桁梁桥。主航道桥6个桥墩采用沉井基础,其余各墩均采用钻孔桩基础;主梁使用新研发的Q500qE高强度桥梁钢;斜拉索采用极限强度2 000MPa的平行钢丝斜拉索。The Hutong Changjiang River Bridge is located in the lower reaches of the Changjiang River and is designed to carry 4-track railways and 6-lane expressways.The river at the bridge site is about 5.8km wide and the bridge that is now being built is required to cross the main ship channel in the south of the river,the special ship channel in the north and the Henggang Islet（a shallow islet）in the middle.The main ship channel bridge is designed as a steel truss girder cable-stayed bridge with a main span of 1 092 m,the special ship channel bridge is as a steel truss arch bridge with a main span of 336 mand the bridges to cross the river dykes on the south and north banks and the section of the Henggang Islet are as the 112-m span simply-supported steel truss girder bridges.With the exception that the foundations for the 6piers of the main ship channel bridge are the open caissons,the foundations for the rest of all other piers are the bored piles.For the main girder and stay cables of the main ship channel bridge,the newly developed Q500 qE high-strength bridge steel and the parallel steel wires of 2 000 MPa ultimate strength are respectively employed.

关 键 词：公路铁路两用桥 斜拉桥 钢桁拱桥 钢桁梁桥 沉井基础 高强度钢材 高强度钢丝拉索 桥梁设计 

分 类 号：U442.5[建筑科学—桥梁与隧道工程] U448.121[交通运输工程—道路与铁道工程]