RESEARCH ON SHEAR PERFORMANCE OF STIFFENED STEEL SHEAR WALL WITH SLITS
Steel plate shear wall with vertical slits is a new type of earthquake-resisting wall element,which has the ductile and stable performance when the steel plate segments between the slits behave as a series of flexural links. Nevertheless,the slit wall is susceptive to out-of-plane elastic buckling,which decreases the wall strength,deformation capacity and energy dissipation capacity. This paper presents the research works on the shear performance of stiffened and nonstiffened steel shear wall with slits. In the stiffened slits wall system,the rigid plate and reinforced concrete plate are used to restrain outof-plane elastic buckling. A series of studies were carried out to examine the stiffness,strength,ductility and energy dissipation capacity of slits wall under monotonic and cyclic lateral load. The effect of panel stiffening on the out-of-plane buckling and stress patterns of steel plate with slits was examined. Large-deflection effect and out-of-plane initial imperfection were considered in the nonlinear finite element analysis. Both rigid plate and reinforced concrete plate can effectively restrain the out-of-plane buckling and reduce the diagonal tension field action of steel plate with slits. Good energy dissipation capacity was obtained for stiffened slits wall. When the reinforced concrete panel collaborated with steel plate to resist shear load at the very start,higher wall strength and initial stiffness were obtained at the cost of shear failure of concrete panel. Based on these research findings,suggestions are made for the design of stiffened steel shear wall with slits.
Out-of-plane stiffening Steel plate shear wall with slits Reinforced concrete plate Out-of-plane buckling Shear performance
Lin Chen Rui-Rong Zhao Yun Zhou
College of Civil Engineering,Guangzhou University,Guangzhou 510006,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
82-86
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）