钢屋盖大位移容差滑移施工技术研究与应用

Study and Application on Asynchronously Pushing Construction for Sliding Steel Roof Structure

笔者用有限单元法对大跨度钢屋盖滑移施工顶推位移的不同步性进行了理论研究,提出了大位移容差滑移施工技术,并对其应用进行了简要的介绍。研究发现,滑移施工时各顶推点普遍允许作用有量值不同的顶推位移,只要各顶推点的不同步位移容差在某一限值范围内,就不会造成结构的破坏,没有必要严格控制滑移施工时各顶推点的位移同步性。与同步滑移施工技术相比,大位移容差滑移施工技术能够降低施工难度,加快施工进度,节约生产成本。

This paper investigates asynchronously pushing, displacement of sliding steel roof structure. By comparison and analysis of results of the computer simulation of construction process, an acceptable difference of displacement construction technology for sliding steel roof structure is provided. It is not necessary to control the synchronization for sliding construction. Construction practice demonstrates the technology can reduce construction difficulty, accelerate construction schedule and save cost.