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端板型钢管混凝土半刚性组合节点拟动力试验

DOI: 10.13197/j.eeev.2014.04.57.wangjf.008, PP. 57-63

Keywords: 钢管混凝土,组合节点,端板连接,拟动力试验,抗震性能

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Abstract:

为了获悉地震作用下半刚性钢管混凝土组合节点的抗震性能和破坏形式,进行了2榀足尺钢管混凝土柱―组合梁单边螺栓端板连接组合节点拟动力试验。研究参数为端板类型。以Ispara地震波作为模拟地震拟动力试验的激励输入,对在地震作用下组合节点的荷载-位移关系滞回曲线、位移时程反应曲线、加速度时程反应曲线、动力放大系数、刚度和强度退化、耗能能力等进行了深入的分析,比较了平齐端板连接和外伸端板连接对组合节点抗震性能的影响。试验研究表明,端板型钢管混凝土半刚性组合节点具有良好的耗能能力和抗震性能,可以在多高层组合框架中推广和应用。

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