Analysis Of Hysteretic Behavior Of Corrugated Steel Plate Shear Wall With Slits

The corrugated steel plate shear wall is developed by optimizing the flat steel plate shear wall system,which has been significantly improved in aspects of lateral stiffness,energy dissipation capacity and bearing capacity.In recent years,in improving the form of structural failure modes,improving energy dissipation capacity,enhancing the ductility and other aspects of good performance of the steel plate shear wall with slits system have gradually become the focus of academic attention.The research is carried out around the corrugated steel plate shear wall with slits,which is based on the systematic analysis of its advantages and disadvantages.In order to explore the optimization scheme,the hysteresis performance is simulated and explored by ABAQUS finite element software in this article.The main research content of the article is as follows:(1)This paper establishes a full shell unit model calculation through finite element software,comparing the results of the existing shrink-scale corrugated steel plate shear wall test,which cover the hysteresis curve,skeleton curve,strength and rigidity degradation and destruction mechanism,and so on.The experimental results of the two have a high degree of fit,which means that the modeling method chosen by the institute is feasible.(2)Through comparative analysis of different opening slit methods(full-size no slit,one,four,seven layers slits)corrugated steel plate shear wall anti-shear performance and hysteretic performance to determine the best way to open slits in wall.The finite element analysis results show that the opening of slits on the corrugated plate has some effect on the bearing capacity and anti-side rigidity of the structure,but the opening slits can make the failure mode of the structure change from overall instability to shear yield,which can effectively improve the ductility of the structure.At the same time,the study found that the number of slits layers were positively correlated with the energy dissipation capacity,ductility coefficient and rigidity degradation ability of the structure.(3)This article systematically analyzes the effect of parameters such as ratio of axial compression stress to strength,height-thickness ratio of steel plate,slits depth-width ratio and column area on the hysteretic performance of the wall.Furthermore,the wall hysteresis curve,skeleton curve,energy dissipation capacity,ductility performance,bearing capacity and rigidity degradation when the above parameters change were analyzed systematically.(4)The finite element analysis results show that the hysteresis performance of the corrugated steel plate shear wall with slits structure has no relation with its ratio of axial compression stress to strength.The height-thickness ratio of steel plate and the structure of initial rigid,energy dissipation capacity and bearing capacity are negatively correlated.(5)When the opening slits rate is consistent,the increase of the slits depth-width ratio will cause the bearing capacity,lateral stiffness of structure to varying degrees of decline.When the opening slits rate is consistent with slits depth-width ratio,the energy dissipation capacity,lateral stiffness,bearing capacity and ductility of structure have a certain rise with the increase of column area.The research results of this acticle lay a theoretical foundation for its wide-area popularization and application.