1. Department of Civil Engineering, Tianjin University, Tianjin 300072, China 2. Key Laboratory of Coastal Civil Engineering Structure and Safety Ministry of Education, Tianjin University, Tianjin 300072, China 3. Zhejiang & Jinggong Steel Structure(Group) Co., Ltd, Shaoxing 312030, China
Beijing Daxing International Airport is ranked as one of the Top Seven Wonders of the New World by the Guardian. The airport uses drum-shaped welded hollow spherical joints in the steel roof structure. This study measured the tensile and compressive strengths of a full-scale model of the drum-shaped welded hollow spherical joints and analyzed the joint failure mechanism. A finite element model was then used to study the effects of the drum position, stiffening rib arrangement, drum size, wall thickness, and sphere diameter on the ultimate bearing capacity of the joints after verification of the model against test data. Design methods and calculational formulas were developed based on the full-scale test data and the finite element analyses to predict the axial tension and axial compression loadbearing capacities of drum-shaped welded hollow spherical joints.
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2020, Vol. 60 
),王小盾1,2,高昊天1,王留成3,朱邵宁3
