五峰山长江大桥钢梁架设与线形控制技术  

Steel Girder Erection and Alignment Control Technology of Wufengshan Yangtze River Bridge

作　　者：冯广胜[1] FENG Guangsheng(China Railway Major Bridge Engineering Group Co Ltd,Wuhan Hubei 430050,China)

机构地区：[1]中铁大桥局集团有限公司,湖北武汉430050

出　　处：《中国铁路》2021年第9期139-146,共8页China Railway

基　　金：中国铁路总公司科技研究开发计划项目(2017G006-A)。

摘　　要：新建连镇高铁镇江五峰山长江大桥主桥是我国境内第1座公铁两用悬索桥,主跨跨度为1092 m,上部结构采用钢桁梁五跨连续结构,采用2节间大节段钢梁整体制造与吊装的方案施工,铁路道砟和公路桥面铺装层等二恒也较大。针对该桥不同于常规悬索桥的技术特点,研究其上部结构施工中的大节段钢梁架设与线形控制关键技术,得出适合本桥的五步法钢梁架设施工技术和对钢梁线形控制有重大影响的主缆、吊索、钢桁梁相关技术参数的提取、分析与纠偏方法。研究成果在实桥建造中得到了成功应用,可在类似工程项目中推广应用。The main bridge of Zhenjiang Wufengshan Yangtze River Bridge on the newly-built Lianyungang-Zhenjiang High-speed Railway is the first highway-railway suspension bridge in China,with a main span of 1092 m.The superstructure is of a five-span continuous structure of steel truss girder,which is constructed with the overall manufacturing and hoisting scheme of two-panel large-segment steel girder.The secondary dead loads of railway ballast and highway bridge deck pavement are also larger.According to the technical characteristics of the bridge,which are different from those of conventional suspension bridges,this paper studies the key technologies for erection and alignment control of large-segment steel girder in superstructure construction,and concludes the five-step steel girder erection technology suitable for the bridge,as well as the extraction,analysis and correction methods for related technical parameters of main cable,suspension cable and steel truss girder which have great influence on the alignment control of steel girder.These research results have been successfully applied in the construction of real bridges,and can be popularized and applied in similar engineering projects.

关 键 词：五峰山长江大桥 千米级 公铁两用大桥 悬索桥 钢梁架设 线形控制 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]