摘要
春兰集团综合办公楼标高66.450m以上悬空箱形结构9m×23m。施工时将悬空楼面满堂不落地钢管脚手架搭设在工具式贝雷架框梁上,框梁搁置在下层楼面和型钢三角撑架上,为提高承载力和控制挠度,在三角撑架上施加预应力,并在悬空楼面纵向主梁中配置施工用无粘结预应力筋,以平衡其上剪力墙自重,减小支撑荷载。采用该法支撑搭设方便,施工速度快,脚手架钢管用量少,挠度易控制,承载力高,安全性好。
The flying box structure of complex office building of Chunlan group is9m×23m with elevation over66.450m.The flying floor full steel tube scaffoldings are lapped on the tool Belfast truss frame beam in construction.The frame beam is placed on the subfloor and section steel triangle braced frame.In order to in-crease bearing capacity and control deflection,prestress has been imposed on the triangle braced frame.The non-binding prestress bar are used in the flying floor prestress longitudinal girder to balance the own weight of the above shear wall and reduce the load of brace.By applying this method it can be achieved that fast speed of construction,less consumed of steel pipes of scaffolding,easy control of deflection,high bearing capac-ity and security.
出处
《建筑技术》
北大核心
2003年第8期576-578,共3页
Architecture Technology
关键词
贝雷架
悬空箱形楼面
型钢撑架
预应力
Belfast truss
flying box floor
section steel braced frame
prestress
