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工程力学  2013 

高轴压比、低剪跨比双钢板-混凝土组合剪力墙拟静力试验研究

DOI: 1000-4750(2013)06-0060-07, PP. 60-66

Keywords: 双钢板-混凝土组合剪力墙,高轴压比,低剪跨比,拟静力试验,抗震性能,双钢板-混凝土组合剪力墙,高轴压比,低剪跨比,拟静力试验,抗震性能

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Abstract:

双钢板-混凝土组合剪力墙可减小墙体厚度、提高承载力和延性,为研究双钢板-混凝土组合剪力墙高轴压比下的抗震性能,完成了5个剪跨比为1.0的双钢板-混凝土组合剪力墙试件的拟静力试验,研究了剪力墙在低周往复荷载作用下的受力性能和破坏模式等,分析了轴压比、距厚比等因素对抗震性能的影响。试验结果表明:低剪跨比试件发生弯剪破坏;墙体钢板在平均位移角1/83时发生局部屈曲,初始屈曲形态受距厚比影响显著;试件峰值荷载、位移延性系数、刚度等受轴压比、距厚比的影响较小;试件平均极限位移角达1/72、平均有效破坏位移角达1/52,具有良好的变形能力;距厚比增大,试件滞回性能稳定性降低;试件耗能随变形增大而迅速增长,抗震性能良好。建议低剪跨比双钢板-混凝土组合剪力墙轴压比限值取0.7。

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