Seismic Performance Analysis Of Corrugated Steel Plate Shear Wall Connected At Both Sides

With the rapid development of urbanization and economy,the development of high-rise and super high-rise buildings requires higher and higher requirements on the design of structural lateral resistance.Shear wall is one of the main components to resist lateral force.Compared with flat steel plate shear wall,corrugated steel plate shear wall has superior shear performance.It can provide larger out of plane stiffness through bending,thus improving the buckling capacity,lateral stiffness and energy dissipation capacity of the wall.At present,there are not many researches on corrugated steel plate shear walls,and corrugated steel plates can reduce the requirements for the edge restraint members when the two sides are connected.So this paper will study the corrugated steel plate shear walls connected on both sides.This paper mainly uses ABAQUS as a finite element analysis software,the test results of corrugated steel plate shear wall in the literature are verified.The simulation results are in good agreement with the test structure in the literature,so as to verify the correctness of the numerical simulation method,and further to the influence of the width height ratio,height thickness ratio,wavelength and the placement direction of corrugated plates on the elastic buckling load,buckling mode and bearing capacity.The main research results And contents are summarized as follows:(1)Under the reciprocating loading,the initial stiffness of flat steel plate,vertical corrugated plate and horizontal corrugated plate is relatively close,but the hysteresis area of vertical corrugated steel plate shear wall is more full,its energy consumption capacity is better,its out of plane deformation is smaller than the other two kinds of steel plates,and the degradation of the bearing capacity of vertical corrugated steel plate is more gentle,so the vertical corrugated steel plate is more suitable for the mode of vertical corrugated steel plate shear wall Shear wall as a connection between two sides.(2)Through the study of the multi parameters of the corrugated steel plate shear wall connected on both sides,it can be concluded that the structural stiffness and bearing capacity of the two sides of the corrugated steel plate shear wall have a greater impact on the height thickness ratio and the height width ratio of the embedded steel plate,and have a smaller impact on the wavelength of the embedded steel plate.When the height thickness ratio of the corrugated steel plate is smaller and the height width ratio is larger,the bearing capacity andenergy consumption of the two sides of the corrugated steel plate shear wall are connected When the wave length of the corrugated plate increases,the bearing capacity and energy dissipation capacity of the corrugated plate shear wall connected on both sides will decrease slightly.(3)The changes in the structural rigidity and bearing capacity of the stiffened corrugated steel plate shear wall on both sides are mainly affected by the height-to-thickness ratio of the embedded corrugated steel plate.,The greater the overall rigidity of the structure,the better the energy dissipation capacity.As the height-to-thickness ratio of the corrugated plate decreases,the corrugated inner panel is prone to out-of-plane deformation,and the middle area of the steel plate is prone to twist.(4)When the height-to-thickness ratio of the corrugated inner panel is fixed,the change of the stiffener's height-to-thickness ratio has little effect on the overall performance of the structure,but it can limit the deformation of the corrugated inner panel to a limited extent.The smaller the in-plane deformation of the plate occurs,but as the thickness of the corrugated inner panel increases,the greater the thickness of the stiffened plate,the less likely out-of-plane deformation will occur.(5)When the stiffener plate width is changed,the size of the plate width has little effect on the initial stiffness and bearing capacity of the structure in the early stage of load loading;in the later period of loading,the shear wall with a plate width greater than 150 mm shows better To a certain extent,the bearing capacity and stiffness can improve the problem of stiffness degradation in the later stage of the structure.