大跨度连续梁拱异位支架拼装纵向滑移竖向提升快速施工工艺研究  

Study on the Construction Technology of Longitudinal Slippage and Vertical Lift of Large Span Continuous Beam and Arch Heterotopic Support Assembly

作　　者：吴鹏 WU Peng(North Jiangsu Railway Engineering Construction Headquarters,Xuzhou 221000,China)

机构地区：[1]苏北铁路工程建设指挥部

出　　处：《工程建设与设计》2019年第23期223-226,共4页Construction & Design for Engineering

摘　　要：以某铁路工程跨通榆河110m+228m+110m连续梁-拱式桥钢管拱施工工艺研究为例,综合原位支架拼装、异位支架拼装、纵向滑移、竖向提升等工艺开展施工方案研究,通过工序交叉、多工作面平行施工实现快速施工,总结出成套可操作的大跨度连续梁拱快速施工工艺,具有工期短、危险存续期短、工期保证系数大等优点,适用于工期卡控的连续梁拱结构,可为类似大跨度连续梁拱部施工提供借鉴。Taking a railway engineering across Tongyu river(110+228+110)m as an example,the continuous beam-arch bridge of steel tube arch construction technology is used in this project,paper studies the construction scheme for considering the integrated bracket assembled in situ,ectopic sliding bracket assembled,longitudinal and vertical lift etc.,through the cross construction and multi-face construction to realize the rapid construction,then summarizes the rapid and operational construction technology for the complete set of large span continuous beam arch,this technology has the advantages as short construction period,short duration of danger coefficient,big time limit guarantee coefficient,is suitable for the construction control of continuous beam structure,can be used for reference for similar large span continuous beam arch construction.

关 键 词：大跨度连续梁拱 异位支架拼装 纵向滑移 竖向提升 

分 类 号：U445.463[建筑科学—桥梁与隧道工程] U448.215[交通运输工程—道路与铁道工程]