超宽波浪形鱼腹式现浇桥梁支撑体系研究  

Research on the Support System of Ultra Wide Wave Shaped Fish Belly Cast-in-place Bridge

作　　者：王志刚[1] WANG Zhi-gang(China Railway First Bureau Group Co.,Ltd.,Xi'an 710054,China)

机构地区：[1]中铁一局集团有限公司,西安710054

出　　处：《价值工程》2023年第28期97-99,共3页Value Engineering

基　　金：中国中铁股份有限公司2016年度科技开发计划(2016-引导-69);中铁一局集团有限公司2017年度技术研发项目(2017A-014)。

摘　　要：为加快邻近地铁车站结构条件下多幅四箱室闭合型超宽鱼腹式箱梁施工,基于成都博览城福州路桥现浇支架基础多台阶且同断面支架高度差异大的工程应用实例,详细介绍了碗扣支架与组合支架构建的支撑体系,对多种交通综合体中超宽异形鱼腹式横梁支架搭建技术提出了创新型施工方案,对箱梁施工过程的裂缝控制也起到了关键作用。In order to accelerate the construction of multiple four-box closed ultra-wide fish-belly box girders near metro stations,the support system of bowl buckle bracket and combined bracket is introduced in detail based on the engineering application example of the cast-in-place bracket foundation of Fuzhou Road Bridge in Chengdu Expo City with multiple steps and large height difference of the bracket in the same section.An innovative construction scheme is proposed for the construction technology of super wide shaped fish-belly beam support in a variety of traffic complex,and it also plays a key role in the crack control of box girder construction.

关 键 词：超宽 鱼腹式现浇箱梁 组合支架 支撑体系 

分 类 号：U445.57[建筑科学—桥梁与隧道工程]