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工程力学  2014 

高轴压比双层钢板-高强混凝土组合剪力墙抗震性能试验研究

DOI: 10.6052/j.issn.1000-4750.2013.06.0536, PP. 218-224

Keywords: 双层钢板-高强混凝土组合剪力墙,拟静力试验,滞回性能,变形能力,耗能能力

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Abstract:

为研究高轴压比下双层钢板-高强混凝土组合剪力墙的抗震性能,对4个剪跨比为2.5的试件进行了拟静力加载试验。通过改变约束拉杆和加劲肋的间距,研究其在往复水平荷载作用下的破坏机理、滞回性能、变形能力以及耗能能力。试验结果表明,这种剪力墙的破坏形态为墙底部截面钢板被压曲、核心混凝土被压碎的弯曲型破坏;试件的滞回曲线饱满,没有明显的捏缩现象;位移延性系数在3.11~4.37,等效粘滞阻尼比在0.158~0.291,延性系数和耗能指标均满足结构抗震设计要求。在轴压比相同条件下,设置加劲肋试件的抗震性能优于设置约束拉杆的试件,随着约束拉杆和加劲肋间距的减小,试件的变形能力增加,表现出较好的耗能能力。

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