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型钢混凝土边框内藏开洞钢板组合剪力墙抗震性能

Keywords: 型钢混凝土边框,内藏钢板,组合剪力墙,抗震性能,承载力计算

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Abstract:

为研究型钢混凝土边框-开洞钢板-混凝土组合剪力墙的抗震性能,进行了5个不同设计参数、不同构造措施剪力墙试件抗震性能比较试验研究.各试件的剪跨比均为1.5,采用低周反复荷载加载.基于试验,对比分析了各试件的承载力、刚度、延性、滞回耗能和破坏特征等.研究表明:与普通钢筋混凝土剪力墙相比,型钢混凝土边框内藏钢板组合剪力墙承载力高、延性好、刚度退化慢、耗能能力强;适当的内藏钢板厚度可改善型钢混凝土边框内藏钢板剪力墙的抗震性能;内藏钢板厚度相同时,设拉结钢筋试件的抗震性能优于焊接栓钉的试件.基于试验提出了型钢混凝土边框内藏钢板剪力墙的承载力计算模型,计算结果与实测值接近.

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