内置钢板组合剪力墙剪切性能研究

RESEARCH ON THE SHEAR PERFORMANCE OF EMBEDDED STEEL PLATE COMPOSITE SHEAR WALLS

为研究带栓钉的内置钢板组合剪力墙抗剪性能及承载力变化规律,文中开展了4个带栓钉的内置钢板组合剪力墙抗剪试验,并通过ABAQUS有限元软件研究了不同约束边缘构件和不同型钢含钢率对剪力墙剪切性能的影响。研究结果表明:随着高宽比的减小,组合剪力墙由弯曲变形转向剪切变形转变,抗侧刚度和荷载值都有明显提高,但延性随之降低。随着边缘构件约束的增强,剪力墙各阶段的刚度和承载力提高很大,其变形能力也会相应提高。随着约束边缘构件含钢率的增加,剪力墙的极限承载力和变形能力也逐渐增强。

This paper studiesthe shear performance and the variation patterns of bearing capacity of composite shear walls with embedded steel plates and shear studs.Additionally,the impact of different boundary restraint members and varying steel content in steel sections on the shear performance of the shear walls is investigated using ABAQUS finite element software.The research results indicate that as the aspect ratio decreases,the composite shear walls transition from flexural deformation to shear deformation,resulting in a noticeable increase in lateral stiffness and load-carrying capacity but a decrease in ductility.With the strengthening of boundary edge element constraints,the stiffness and load-carrying capacity of the shear walls significantly increase at each stage with a corresponding im⁃provement in deformation capacity.Furthermore,an increase in the steel content rate of the boundary edge elements gradually enhances the ultimate load-carrying capacity and deformation capacity of the shear walls.