平行弦桁架与贝雷梁组合支架在大跨度现浇箱梁中的研究与应用  

Research of the Parallel Chord Truss and the Bailey Beam Combined Bracket in the Large-span Cast-in-situ Box Girder and Its Application

作　　者：魏勇刚 

机构地区：[1]中铁建大桥工程局集团第三工程有限公司,辽宁沈阳110043

出　　处：《铁道建筑技术》2016年第3期95-98,共4页Railway Construction Technology

摘　　要：随着我国道路桥梁建设的蓬勃发展,不断出现高墩、大跨桥梁结构类型以及复杂多变的地质条件,根据不同的地质条件和施工环境,采用结构简单、支架体系安全、基础处理费用小、经济成本节省、施工安拆方便的支架体系,是当前桥梁施工建设研究的重点。结合南昌市绕城高速公路南环高架桥支架现浇箱梁施工,重点介绍一种新型支架体系,平行弦桁架与贝雷梁组合支架,在大跨度现浇箱梁中施工应用。With the booming development of road and bridge construction in China, the construction of high pier, largespan bridge structure and complex geological conditions are constantly appeared. Based on the different geological conditions and construction environment, the application of simple structure, support safety, less investment in foundation treat- ment, economic cost saving, safe and easy operation, is the key point of research in current bridge construction. Combined with the construction of cast-in-situ box girder in Nanchang South Ring Expressway, this article mainly introduces an application of a new type support system （parallel chord truss and Bailey beam combined support） in the construction of largespan cast-in-situ box girder.

关 键 词：平行弦桁架 贝雷梁 组合支架 大跨度现浇箱梁 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]