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工程力学  2015 

型钢再生混凝土框架-空心砌块墙抗侧刚度试验研究

, PP. 73-81

Keywords: 型钢再生混凝土,低周反复荷载,填充墙,水平承载力,抗侧刚度

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Abstract:

为研究型钢再生混凝土结构(SRRC)的抗侧力性能,进行了3榀不同填充程度的型钢再生混凝土框架-再生混凝土空心砌块墙体混合结构的低周反复荷载试验。通过测试试件在侧向力作用下的受力过程和破坏形态,研究型钢再生混凝土框架结构的受力机理和抗震性能,获得了再生混凝土空心砌块墙体对框架的承载力和抗侧刚度的影响;分析结构在不同受力阶段的承载力和刚度变化情况,以及结构在同级循环荷载作用下的刚度退化规律。结果表明:型钢再生混凝土框架-再生混凝土空心砌块填充墙结构具有较高的承载力和抗侧刚度,全高填充墙对型钢再生混凝土框架抗侧刚度的影响较大,结构初始刚度大,而刚度衰减快,半高填充墙在结构受力初期可提高结构承载力和刚度,而在受力后期具有与空框架相似的退化规律。

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