铁路大跨径连续刚构桥0#块与双薄壁墩托架法同步浇筑施工技术  

Construction Technology of Synchronous Pouring of 0#Block and Double Thin-wall Pier Bracket Method for Railway Long-span Continuous Rigid Frame Bridge

作　　者：张德明 Deming Zhang(Tengda Construction Group Co.,Ltd.Shanghai Branch,Shanghai,201204,China)

机构地区：[1]腾达建设集团股份有限公司上海分公司,中国·上海201204

出　　处：《工程设计与施工》2024年第9期22-25,共4页Engineering Design and Construction

摘　　要：论文以南汇支线(两港市域铁路)上海东支线双线特大桥项目为依托,探讨铁路大跨径连续刚构采用新型嵌入式牛腿托架应用在0#块与双薄壁墩同步浇筑的施工技术研究。介绍了0#块托架法的施工工艺及技术要求,根据0#块的长度、宽度、混凝土施工容重,利用空间有限元软件Midas/Civil计算托架的整体受力情况,并对新型嵌入式牛腿托架的设计及构造特点、0#块与双薄壁墩同步浇筑施工工艺流程做了简要的介绍,对0#块与双薄壁墩托架法同步浇筑的同类工程顺利施工具有参考意义。The paper is based on the double track super large bridge project of Nanhui Branch Line(Two Port City Railway)and Shanghai East Branch Line,and explores the construction technology research of using a new embedded cow leg bracket for the synchronous pouring of 0#block and double thin-walled pier in the large-span continuous rigid frame of the railway.This paper introduces the construction process and technical requirements of the 0#block bracket method.Based on the length,width,and concrete construction density of the 0 # block, the overall stress situation of the bracket is calculated using the spatial finite element software Midas/Civil.The design and construction characteristics of the new embedded cow leg bracket,as well as the synchronous pouring construction process of the 0#block and double thin-walled pier bracket method,are briefly introduced.This has reference significance for the smooth construction of similar projects using the synchronous pouring of the 0 # block and double thin-walled pier bracket method.

关 键 词：0#块施工 托架 新型嵌入式 大跨径 连续刚构 同步浇筑 

分 类 号：U44[建筑科学—桥梁与隧道工程]