重型钢桁架悬空挂载条件下网架整体提升施工技术  

Construction Technology of Integral Lifting of Space Truss Under Condition of Heavy Steel Truss Hanging in Air

作　　者：张围 曹巍[1] 梁思龙[1] 刘彪 ZHANG Wei;CAO Wei;LIANG Silong;LIU Biao(China Construction Eighth Engineering Division Co.,Ltd.South China Branch,Guangzhou,Guangdong 510663,China)

机构地区：[1]中国建筑第八工程局有限公司华南分公司,广东广州510663

出　　处：《施工技术（中英文）》2022年第11期92-96,共5页Construction Technology

摘　　要：为解决屋面网架与钢桁架施工存在先后互相制约的矛盾,创新性提出网架挂载重型钢桁架多次悬空拼装整体提升技术。将网架按垂直投影所在不同楼地面标高进行分块,钢桁架进行相应分段后在地面拼装。通过解决网架提升中精确控制悬空姿态,实现分块网架从低到高提升,挂载对应分段的钢桁架,并且分块网架在高处合龙,实现最终整体提升,避免大量支撑脚手架搭设,缩短工期,获得较大经济效益。In order to solve the contradiction between the construction of roof grid and steel truss,the integral lifting technology of multiple suspension assembly of heavy steel truss mounted on grid is proposed for the first time.The grid is divided into blocks according to the ground elevation of different buildings where the vertical projection is located,and the steel truss is assembled on the ground after corresponding segmentation.By accurately controlling the suspended altitude in the grid lifting,the block grid is lifted from low to high,with the corresponding steel truss mounted.By closing the block grid at high,the overall lifting process is completed.In this way,it avoids a large number of supporting scaffolding and shortens the construction period,thus obtaining greater economic benefits.

关 键 词：网架 钢桁架 拼装 挂载 整体提升 

分 类 号：TU74[建筑科学—建筑技术科学]