Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering,China University of Mining&Technology,Xuzhou 221116,China;
Key Laboratory of Building Fire Protection Engineering and Technology of MPS,Tianjin 300381,China;
Shanghai Beststeel Steel Structure Building System Co.,Shanghai 200949,China;
cold⁃formed steel structures; stud⁃to⁃sheathing screw connections; double⁃shear experiments; elevated temperature; load⁃displacement model;