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为研究装配式剪力墙齿槽式连接的受剪性能,进行了8片1/2缩尺剪跨比为0.54的齿槽式连接试件单调推覆加载试验。研究了装配式剪力墙齿槽式连接的破坏模式、开裂形态、荷载-位移曲线和承载力,分析了轴压比、暗柱设置、齿槽长度等因素对装配式剪力墙齿槽式连接受剪承载力的影响。结果表明:轴压比对齿槽式连接试件的开裂模式影响较大,轴压比较大的试件,裂缝开展以对角线方向的斜裂缝为主;轴压比较小的试件,裂缝开展以齿槽接合面裂缝为主;增加轴压比和设置暗柱提高了装配式剪力墙齿槽式连接的受剪承载力,齿槽长度对装配式剪力墙齿槽式连接受剪承载力影响较小。基于现有研究成果和试验结果,提出了装配式剪力墙齿槽式连接受剪承载力计算式,其计算结果与试验结果吻合较好。
In order to study the shear performance of the slotted connection of fabricated shear walls, the monotonous nappe loading test was carried out on eight 1/2-scale shear-span ratio of 0.54. The failure mode, cracking mode, load-displacement curve and bearing capacity of the slotted-type shear wall are studied. The effects of axial pressure ratio, dark column setting, Impact of shear bearing capacity. The results show that the axial compression ratio has a great influence on the cracking mode of the cogging connection specimen. The specimens with larger axial compression ratio are mainly diagonal cracks in the diagonal direction. The specimens with smaller axial compression ratio, Cracks in the cogged joints were mainly developed. Increasing the axial compression ratio and setting up the dark columns increased the shear capacity of the castellated shear walls. The length of the cogs on the shear wall of the assembled shear wall was sheared The effect of bearing capacity is small. Based on the existing research results and experimental results, the formulas for calculating the shear capacity of the slotted-in-steel shear wall are put forward. The calculated results are in good agreement with the experimental results.