圆锥形变截面钢管柱内置虹吸雨水管施工技术

Construction Technology of the Siphon Rainwater Pipe Built in the Variable Cross-section Steel Pipe Column

武汉天河机场T3航站楼工程将屋面排水系统的虹吸雨水管内置于钢管柱,钢管柱作为航站楼主体结构屋盖支撑柱,根据造型需要设计为圆锥形倾斜形式。通过对钢管柱及虹吸雨水管的安装进行力学性能分析及施工工艺研究,确定内置虹吸雨水管的设计思路及施工工序,确保了施工安全及施工质量。

In the T3 terminal building of Wuhan Tianhe Airport, the siphon rainwater pipe of the roof drainage system is placed in steel pipe concrete column. The steel pipe concrete column is used as the roof supporting column of the main structure of the terminal building, and is designed as a conical inclined form according to the modeling requirements. Through the analysis of mechanical properties and construction technology during the construction period of the installation of the variable cross-section steel pipe concrete column and the siphon rainwater pipe, the hoisting force analysis of the variable cross-section steel pipe column and the design idea and construction procedure of the concrete column built with siphon pipe are determined to ensure the construction safety and quality.