型钢组合三角架在高空悬挑混凝土结构中的应用

Application of Steel Composite Triangle Frame in the Construction of High Altitude Suspended Concrete Structures

针对高层及超高层建筑屋顶混凝土超大悬挑结构施工难题,以传统悬挑工字钢施工技术为基础,提出型钢组合三角架施工技术,分析其原理、特点,从现场针对性、技术先进性、工期合理性、成本经济性、安全保障性、绿色引领性六个方面对型钢组合三角架施工技术进行总结。

In view of the difficulties in the construction of super large overhanging concrete structures on the roofs of high-rise buildings,based on traditional cantilever I-beam construction technology,propose construction tech⁃nology for section steel composite triangular frame,discuss its principles and characteristics.Analyze and sum⁃marize the construction technology of section steel composite tripod from technical progressiveness,duration rationality,cost economy,safety assurance and green guidance.