大跨度空间桁架与网架组合结构分步累积液压提升施工技术

Large span space truss and grid structure step by step accumulation of hydraulic lifting construction technology

珠海航展中心配套服务设施提升工程(一期)钢结构工程为空间桁架与网架组合结构,桁架的截面高度10.3m,网架与桁架连接处网架的截面高度为3.9m,高差较大;建筑结构高度为27.7m,项目处在珠海机场附近,限高29.8m,通过采用大跨度空间桁架与网架组合结构分步累积液压提升施工技术,解决了上述难题。

Zhuhai Airshow Center Supporting Service Facilities Upgrading Project(phase I) Steel structure project is space truss and grid structure combination structure. The cross section height of the truss is 10.3 meters. The cross section height of the grid at the connection between the grid and the truss is 3.9 meters. The height difference is large. the structural height of the building is 27.7 meters. The project is located near Zhuhai Airport. The height limit is 29.8 meters.By adopting the construction technology of multi-step accumulative hydraulic lifting of large-span space truss and grid frame, the above problems are solved.