南京大胜关长江大桥主桥钢梁南边跨合龙技术  

Closure Techniques for South Side Span Steel Girder of Main Bridge of Dashengguan Changjiang River Bridge in Nanjing

作　　者：骆双全[1] 于祥君[1] 

机构地区：[1]中铁大桥局集团第二工程有限公司,江苏南京210015

出　　处：《桥梁建设》2009年第3期9-11,84,共4页Bridge Construction

摘　　要：京沪高速铁路南京大胜关长江大桥主桥为2联(84+84)m连续钢桁梁+(108+192+336+336+192+108)m六跨连续钢桁拱桥。六跨连续钢桁拱桥分4个合龙点,先192 m边跨合龙,再中跨合龙。介绍该桥主桥南边跨合龙的特点、技术措施、合龙前的架设状态、合龙步骤。The main bridge of Nanjing Dashengguan Changjiang River Bridge on BeijingShanghai High-Speed Railway is composed of two units of （84 ＋ 84） m continuous steel truss girders and six spans of （108＋192＋336＋336＋192＋108） m continuous steel truss arches. The six-span steel truss arches are closed at four closure points, in which the 192-m side spans are closed first and the 336-m main spans are later. This paper presents the characteristics, technical measures, erection status before closure as well as the closure steps of the south side span steel girder of the bridge.

关 键 词：钢桥 桁架拱桥 桥梁架设 合龙 施工方法 

分 类 号：U448.224[建筑科学—桥梁与隧道工程] U445.46[交通运输工程—道路与铁道工程]