In order to reduce the stiffness requirement of frame column,and to balance the functions of buckling-restrained steel plate shear wall as lateral force resistant component and energy dissipation component,in this paper,the buckling-restrained steel plate shear wall connected on both sides and the four corners is presented.Through the theoretical derivation and numerical simulation,this paper investigated the mechanical properties of the presented shear wall,present the theory of bearing capacity and the minimum stiffness expression,describe the stiffness and elongation of the buckling-restrained steel plate shear wall connected on both sides and the four corners,and study the shear force distribution law between steel frame and embedded steel plate.The results show that the buckling steel plate shear wall connected at both sides and the four corners reduces the minimum stiffness requirement of the frame column by 40%compared with the buckling steel plate shear wall connected at four sides;The embedded steel plate bears more than 80%of the shear force.When the plastic hinge is fully formed,the proportion of shear force borne by the embedded steel plate and the frame column tends to be balanced;the concrete covers can provide lateral constrain to improve the embedded steel plate shear capacity.The restraint effect of the concrete cover plate can effectively improve the shear bearing capacity of the embedded steel plate,until the thickness of concrete cover plate is 40 mm,the initial stiffness and embedded steel plate shear force no longer increases.Therefore,buckling-restrained steel plate shear walls connected on both sides and the four corners have good seismic performance and can be used as lateral force resistant components in high-rise buildings to resist horizontal loads.
关键词
四角两边连接/防屈曲钢板剪力墙/结构刚度/结构延性/剪力分配
Key words
connection to beams and partial colums/buckling-restrained steel plate walls/structural stiffness/structural ductility/shearing force distribution
维普
万方数据