Finite Element Parameter Analysis Of Seismic Behavior Of Corrugated Steel Plate Shear Walls With Openings

Corrugated steel plate shear wall is an innovative steel plate shear wall system,which uses corrugated steel plate instead of the traditional flat inboard.The initial stiffness and bearing capacity of this steel plate shear wall can be better than that of the traditional steel plate shear wall system.In order to meet the needs of openings such as doors and windows,the corrugated steel shear walls need to be opened in construction.In this paper,the buckling modes of corrugated steel plate shear walls with high,square,rectangular and different positions square openings were studied under eigenvalue buckling analysis by ABAQUS.Meanwhile,the influence of the orifice,the amplitude of shear wall and the direction of corrugation on the buckling mode were studied.Finally,it was compared with the corresponding perforated flat steel plate shear wall.Then,through nonlinear nappe analysis,the influence of the opening form,wave amplitude and the direction of corrugated arrangement on the lateral resistance of the bottom fixed corrugated steel plate shear wall with door or window opening was studied.The results showed that the bearing capacity of vertical corrugated steel plate wall with a wave amplitude of 30 mm / 60 mm / 75 mm after opening was higher than that of flat steel wall with corresponding opening,and the deformation of vertical corrugated steel plate with opening was smaller than that of the plain plate with the corresponding opening.For the perforated transverse corrugated steel plate wall,the overall bearing capacity of the SPSW with 15 mm wave amplitude was the highest.With the increase of the amplitude,the yield area of the steal plate was less and less,and the utilization ratio of the material was decreased.And as to the vertical corrugated SPSW,with the increase of wave amplitude,the buckling of the plate was no longer occurring in the maximum bearing capacity with the out-of-plane deformation becoming smaller,and the proportion of the inner plate sharing the overall bearing capacity was also increased.The ultimate bearing capacity of vertical corrugated SPSW with opening was higher than that of transverse corrugated SPSW with the same wave amplitude,and the larger the amplitude,the more obvious the trend was.Finally,the anti-lateral performance of corrugated SPSW with high opening,square,rectangular and different positions was analyzed.When opening the high hole,the bearing capacity of the vertical corrugated SPSW was higher than that of the transverse corrugated SPSW with the same wave amplitude,and the yield area of the vertical corrugated inboard was larger with the material more fully utilized.When the same opening,the influence of different location on the bearing capacity of the SPSW was relatively small.It was good to fix the edge of the hole when the vertical corrugated SPSW opened the larger hole.When the rectangular hole was opened in the vertical corrugated SPSW,the width change of the hole was greater than the change of the height on the bearing capacity.The overall bearing capacity was larger when the long side of the hole was placed vertically.When the width of the hole was large,the material could not yield due to the lack of constraint on the upper and lower edge of the hole.In the actual engineering,we could consider increasing the constraint of the opening edge.When the transverse corrugated SPSW opened a square or rectangular opening,the orientation of the opening had no obvious effect on the bearing capacity of the transverse corrugated SPSW.The opening position of the SPSW varied with the amplitude of the wave when the maximum bearing capacity of the SPSW was obtained with the square hole opened at different positions.