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以木质OSB、重组竹、竹帘胶合板为SIP墙体的覆面材料,测试这三种材料覆面SIP墙体在单向及往复载荷作用下的抗剪性能。结果表明:往复载荷作用时的极限载荷、抗剪强度、峰值位移、极限位移比单向载荷作用时下降,但弹性阶段刚度有所提高。往复载荷作用时,在逐级加载过程中墙体刚度逐渐退化;三种材料覆面SIP墙体,抗剪强度分别为16.5k N·m~(-1)、18.4k N·m~(-1)、17.4k N·m~(-1),弹性阶段刚度依次为1476.4k N·m~(-1)、1140.7k N·m~(-1)、934.6k N·m~(-1),耗能分别为5595.4J·m~(-1)、5488.7J·m~(-1)、5450.2J·m~(~(-1));随加载次数及位移增大,墙体内部损伤累积,耗能能力减小。
The anti-shear performance of SIP wall covered with OSB, bamboo and bamboo plywood for SIP wall was tested under one-way and reciprocating loads. The results show that the ultimate load, the shear strength, the peak displacement and the ultimate displacement under the action of reciprocating load are lower than those under the unidirectional load, but the stiffness of the elastic phase is increased. The stiffness of the wall gradually degenerated during the progressive loading process under the reciprocating load. The shear strength of SIP wall covered with three materials was 16.5 kN · m -1, 18.4 kN · m -1 ) And 17.4 kN · m -1, respectively, and the stiffness of the elastic phase were 1476.4 kN · m -1, 1140.7 kN · m -1 and 934.6 kN · m -1, respectively, , The energy consumption was 5595.4J · m -1, 5488.7J · m -1 and 5450.2J · m -1 respectively. With the increase of loading times and displacement, the internal damage of the wall Accumulation, reduce energy consumption.