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进行了2块双面无板带交叉扁钢拉条支撑的冷弯型钢骨架墙体足尺试件(宽2.4m,高3m)抗剪试验。利用提出的墙体抗侧移刚度简化计算模型推导了墙体抗侧移刚度理论计算公式,并结合试验数据和有限元分析结果,得到墙体抗侧移刚度实用计算公式,公式计算结果与试验、有限元分析结果吻合较好;通过对墙体在水平力作用下的各种可能破坏模式的研究,提出了相应的墙体最大抗剪承载力计算模型,并结合试验和有限元结果,得到了墙体最大抗剪承载力实用计算公式,公式计算结果同试验、有限元分析结果比较一致。
Two full-width specimens (width 2.4m, height 3m) of cold-formed steel frame supported by two double-sided cross-slabs with cross slats are tested. Based on the simplified calculation model of wall lateral stiffness, the theoretical calculation formula of wall lateral stiffness is deduced. Based on the experimental data and finite element analysis results, the practical calculation formula of wall lateral stiffness is obtained, and the calculation results and tests , The results of the finite element analysis agree well with each other. Based on the study of various possible failure modes of the wall under the horizontal force, the corresponding calculation model of the maximum shear capacity of the wall is proposed. Combining the experimental results and the finite element results, The practical formula of the maximum shear capacity of the wall is calculated. The calculation results of the formula are consistent with those of the test and the finite element analysis.