Research On Lateral And Hysteretic Behaviors Of Two-side Connected Steel Plate Shear Walls

Four-side connected flat steel plate shear walls are prone to arise out-of-plane buckling.At the same time,the steel plate has a great in-plane and out-of-plane effect on frame columns,which is easy to cause frame columns to buckle under compression and bending.In order to avoid the defects of four-side connected flat steel plate shear walls,finite element analysis is carried out on the two-side connected flat steel plate shear walls and corrugated steel plate shear walls in this paper to ascertain the mechanical properties of two-side connected steel plate shear wall and give the design method of the shear wall.The results can lay a foundation for the application of two-side connected steel plate shear walls in engineering project.Firstly,based on the elastic buckling theory of flat steel plate and corrugated steel plate,the rules of selection of embedded flat steel plate and corrugated steel plate are put forward According to the rules of selection,the geometric parameters of flat steel plate and corrugated steel plate of the steel plate shear wall are given in the paper.Secondly,the elastic buckling analysis,pushover analysis and hysteretic analysis of steel plate shear wall are carried out in finite element software ABAQUS.The influence of embedded steel plates and stiffeners on the mechanical performance of two-side connected steel plate shear walls is studied.The results show that the buckling stability of steel plate shear walls can be significantly improved by stiffening on two sides of the plate;the stiffeners on both sides can restrict the buckling of flat steel plate and vertical corrugated plate on two sides,improving the lateral resistance of shear walls;the H-beam stiffeners on both sides increase the in-plane anchorage to the tensile field of embedded flat steel plate and ensure that the shear effect of embedded corrugated steel plate can be fully exerted,and further improve the lateral resistance and hysteretic performance of steel plate shear wallThirdly,the in-plane and out-of-plane effect of the embedded steel plate on the stiffeners on both sides of the shear wall are studied.The results show that the forces of flat steel plate on stiffeners come from the post-buckling tension field in plate,the forces of corrugated plate on stiffeners come from the shear effect,and the forces of transverse corrugated plate on stiffeners are uneven along the height of stiffeners on two sidesThen,the design formulas of stiffeners of the flat steel plate and vertical corrugated steel plate shear wall are given.Using the formulas,three flat steel plate shear walls and three vertical corrugated steel plate shear walls are designed,and the applicability of the design formulas is verified by finite element calculation.Comparing the lateral performance and hysteretic performance of four-side connected steel plate shear walls with the same steel consumption,the advantages of two-side connected steel plate shear walls are illustrated.Finally,the formula for calculating the lateral bearing capacity of stiffening flat steel plate and stiffening vertical corrugated steel plate is deduced.The accuracy of the formula is verified by finite element calculation.Based on the research in this paper,it is proven that the lateral stiffened two-side connected steel plate shear wall is an excellent lateral resistance member,and the design method of lateral stiffened two-side connected steel plate shear wall is correct and applicable.The flat steel plate shear walls and the vertical corrugated steel plate shear walls designed by this method have excellent lateral resistance performances and hysteretic performances.