跨越大沉降差后浇带钢屋架施工关键技术

Key Construction Technology of the Steel Truss Across the Large Post Cast Trip

高层建筑往往与底层裙房连在一起,裙房主要采用混凝土主体与钢屋架相结合的结构形式。为减少裙房和高层建筑不均匀沉降对结构的破坏,通常采取设置后浇带的措施。结合工程实例,浅谈跨越后浇带钢屋架的施工技术与方法,在保证钢屋架受力合理的同时,有效的减少了不均匀沉降对钢屋架施工的影响。

High-rise buildings are often linked to the underlying podium together,podium subject mainly adopts concrete combined with steel roof truss structure. In order to reduce the podium and the destruction of the differential settlement of the high-rise building structure,setting post-cast strip is a common approach. Combined with practical engineering,this paper discusses the construction technology and method of steel roof truss across ingpost-cast strip,which effectively reducing the uneven settlement of the influence of the steel roof construction,in guarantee reasonable steel roof truss stress at the same time.