变高箱梁上跨多股既有铁路支承体系施工方法研究  

Research on the Construction Method of the Supporting System of Variable-height Box Girder across Multi-strand Existing Railway

作　　者：侯亚红 HOU Ya-hong(The 4th Engineering Co.,Ltd.of China Railway 25th Bureau Group,Liuzhou 545007,China)

机构地区：[1]中铁二十五局集团第四工程有限公司,柳州545007

出　　处：《价值工程》2021年第7期133-135,共3页Value Engineering

摘　　要：结合柳州东外环柳东段上跨湘桂铁路单箱四室变高结构预应力砼连续箱梁施工实例,本文详细阐述了采用螺旋钢管立柱贝雷梁支架结合碗扣式满堂支架做为承重体系的设计、结构承载验算及支承体系施工关键技术。Combined with the construction example of a single box four-chamber prestressed concrete continuous box girder with a variable height structure on the Liudong section of Liuzhou east outer ring across Xianggui Railway,this article describes in detail the design of the bearing system,the structural bearing check calculation and the key technology of the supporting system construction using the spiral steel pipe column Bailey beam bracket combined with the bowl-shaped full-floor bracket as the load-bearing system.

关 键 词：螺旋钢管 贝雷梁 碗扣式满堂支架 变高结构 承载验算 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]