Computationally efficient fastener-based spring element models of sheathed cold-formed steel framed shear wall
YAO Xing-you1,2, GUO Yan-li2, KANG Yi-tao2, TAN Zheng2
1. School of Aerospace Engineering and Applied Mechanics, Tongji University, 200092, Shanghai, China; 2.Jiangxi Provincia Engineering Research Center of the Special Reinforcement and Safety Monitoring Technology in Hydraulic & Civil Engineering, Nanchang Institute of Technology, 330099, Nanchang, China
Abstract：
The computational model of sheathed cold-formed steel framed shear walls is developed based on non-linear，radially-symmetric spring element for screw connection between sheathing board and cold-formed steel framing using SAP2000 program. The screw is assigned the two independent pivot material spring element. The sheathing material is modeled as a separate rigid body. The cold-formed steel frame is modeled by three dimension beam and column elements. The model approach focuses on reasonably non-linear spring element between cold-formed frame and sheathing material modeling cold-formed steel frame shear wall. The verification is conducted using the hysteretic test of shear wall. The research results shows that the computational model of sheathed cold-formed steel framed shear walls based on non-linear，radially-symmetric spring element for screw connections using SAP2000 can be used for detail analysis for cold-formed steel shear wall and the analyses results can be as the base on simplified seismic design method of shear wall.
YAO Xing-you1,2,GUO Yan-li2 et al. Computationally efficient fastener-based spring element models of sheathed cold-formed steel framed shear wall[J]. Architecture Technology, 2017, 48(5): 556-.
