Seismic Performances of Narrow Flange Special-shaped Column-Corrugated Steel Plate Shear Wall System
To solve the problems of convex beams,convex columns,and insufficient lateral stiffness in steel structure residential buildings,a new type of narrow flange special-shaped column-corrugated steel plate shear wall system was proposed.Comparing with the traditional H-shaped steel column-flat steel plate shear wall system,arrangement of em-bedded corrugated steel plates was determined.ABAQUS software was used to create a finite element model of the pro-posed system to analyze seismic performances of the proposed system and explore effects of external frame section shapes and layouts,corrugated steel plate thickness,and shear-span ratios on lateral bearing capacity,energy dissipation capa-bility,and plastic deformation capacity of the proposed system.The results show that the proposed system has large later-al bearing capacity as well as strong energy dissipation and plastic deformation capabilities.Its ultimate lateral bearing capacity is 1.73 times of the design value,indicating a certain safety margin.The horizontally arranged corrugated steel plates can effectively reduce loads on frame beams and columns.The use of cross-shaped special-shaped columns enhances plastic deformation capacity of the proposed system.It is advisable to place eccentric columns of the special-shaped columns in the proposed system along inner face of the shear wall,use embedded corrugated steel plates with thickness of 3 mm to 5 mm,and maintain shear-span ratio of around 1.25.
NETL
NSTL
万方数据
