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基于1/2比例生态复合墙体框格单元的试验,给出了不同因素的框格单元承载力与破坏模式的对比分析,提出框格单元的合理破坏模式,对不同相对刚度与强度的框格单元建立非线性数值扩展分析模型,进而对基于合理破坏模式的框格单元相对刚度与相对强度进行分析。试验研究与数值分析结果表明:各种不同框格单元的破坏模式也不相同,框格单元的合理破坏模式为砌块角部压碎破坏,为保证框格单元发生砌块角部压碎破坏,框格单元相对刚度的合理取值范围为2.14≤λh≤3.47,相对强度的合理取值应满足4.66≤n c≤8.04。
Based on the experiment of siding cells with half proportion of ecological composite wall, the contrastive analysis of the bearing capacity and breaking mode of sash cells with different factors is given, and the reasonable failure mode of sash cells is proposed. For frames with different relative stiffness and strength, Nonlinear numerical expansion analysis model is established for the cell, and then the relative stiffness and relative intensity of the cell based on the reasonable failure mode are analyzed. Experimental results and numerical analysis show that the failure modes of the various sash cells are different, and the reasonable failure mode of the sash cells is the crushing failure at the corners of the block. In order to ensure the crushing of the block corners at the sash, , The reasonable range of the relative stiffness of the sash cell is 2.14≤λh≤3.47, and the reasonable value of the relative intensity should satisfy 4.66≤nc≤8.04.