大跨度钢桁架安装施工技术  

CONSTRUCTION TECHNIQUE FOR WIDE-SPAN STEEL TRUSS INSTALLATION

作　　者：罗岗[1] 王恒[1] 刘京城[1] 钟涛 张羽[1] LUO Gang;WANG Heng;LIU Jing-cheng;ZHONG Tao;ZHANG Yu(Beijing Urban Construction Group Co.,Ltd.,100084,Beijing,China)

机构地区：[1]北京城建集团有限责任公司,北京100084

出　　处：《建筑技术》2022年第7期809-811,共3页Architecture Technology

摘　　要：二一工程大跨度钢桁架数量多、分布广,通过采用临时格构式支撑,屋面桁架支撑顶部设置横梁,桁架分段通过定位模板与支撑顶部横梁连接,吊装单元之间的嵌补杆采用高空散拼方式进行安装,实现对大跨度钢桁架精确安装,为类似项目钢结构施工提供参考。The 21 project has a large number of and widely distributed wide-span steel trusses.Accurate installation of wide-span steel truss was realized through application of temporary lattice support, setting beam on the roof truss support top, using positioning formwork to connect divided truss with support top beam and aerial assembly of compensation rod among units. It provided references for similar steel structure construction projects.

关 键 词：屋面桁架 大跨度钢桁架 分段吊装 临时格构式支撑 钢结构卸载 

分 类 号：TU74[建筑科学—建筑技术科学]