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工程力学  2013 

矩形截面框架柱斜向受剪承载力计算模型

DOI: 10.6052/j.issn.1000-4750.2011.06.0345, PP. 242-247

Keywords: 结构工程,钢筋混凝土框架柱,试验研究,空间桁架-拱模型,斜向受剪承载力

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Abstract:

为避免矩形截面框架柱在斜向水平地震作用下发生脆性破坏,通过试验研究14根框架柱在斜向水平荷载作用下的受力性能和破坏机理。以桁架-拱模型为基础建立计算矩形截面框架柱斜向受剪承载力的空间桁架-拱模型,该模型主要考虑了框架柱截面面积、混凝土和箍筋材料强度、配箍率、轴压力以及混凝土强度折减系数对其斜向受剪承载力的影响。最后,利用该文以及其他试验共计30根矩形截面框架柱的斜向受剪承载力试验结果对此空间桁架-拱模型的可行性和适用性进行了验证,试验结果与计算值的对比表明利用该模型可以安全计算矩形截面框架柱斜向受剪承载力。

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