悬挑钢连廊整体提升及卸载技术  

Overall Lifting and Unloading Technology of the Cantilevered Steel Corridor

作　　者：李超良 张献忠 刘玉贵 蓝波 LI Chao-liang;ZHANG Xian-zhong;LIU Yu-gui;LAN Bo(Suzhou SND Group Co.Ltd.,Suzhou 215000,China)

机构地区：[1]苏州苏高新集团有限公司,江苏苏州215000

出　　处：《工程建设与设计》2024年第11期127-130,共4页Construction & Design for Engineering

摘　　要：某工程钢连廊有两跨独立悬挑钢桁架,不同于以往先分后合的高空散拼施工法,该工程提出“地面整体拼装、高空卸载分离”的施工技术,即先进行地面整体拼装,后进行整体提升,最后进行高空卸载分离,有一定的独特性。论文详细阐述了钢连廊整体提升设备选择,吊点的设置及加固,起吊过程的控制,桁架卸载分离及变形监测等;过程中借助Midas软件对起吊过程钢连廊的结构强度进行数值模拟分析,提出了相应的加固措施,为施工现场变形监测提供了相应的参考。The steel corridor of a project has two independent cantilevered steel truss.Which is different from the previous high-altitude scattered splicing method.This project puts forward the construction technology of“ground integral assembly and high-altitude unloading separation”,that is,the ground integral assembly is carried out first,then the whole lifting is carried out,and finally the high-altitude unloading separation is carried out,which has certain uniqueness.This paper expounds the overall lifting equipment selection,the setting and reinforcement of lifting points,the control of lifting process,and the truss unloading separation deformation monitoring.With the help of MIDAS software,the structural strength of the steel corridor is simulated and analyzed,and the corresponding reinforcement measures are proposed,which can provide corresponding reference for the deformation monitoring of the construction site.

关 键 词：悬挑钢连廊 先合后分 整体提升 有限元分析 

分 类 号：TU758.11[建筑科学—建筑技术科学]