目前钢管结构已广泛应用于超高压、特高压变电构架中,而构架吊装中吊点及钢丝绳径的选择一般凭施工经验进行确定。以山东密州变电站500 kV钢管构架吊装为例,通过理论计算阐述了构架吊装过程中钢梁和A字柱的吊点的最佳受力位置及钢丝绳径的选择,为构架吊装提供理论依据。 At present, the structure of steel pipe has been widely used in EHV and UHV substation structures, while the choice of lifting point and wire rope diameter of the structure is generally determined by the construction experience. Taking the 500 kV steel tube truss hoisting at Mizhou substation in Shandong as an example, the optimal stress location and wire rope diameter selection of steel girder and A-pillar lifting points in the course of hoisting are expatiated through theoretical calculation, which provides a theoretical basis for hoisting the truss.