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工程力学  2015 

基于改进Bouc-Wen模型的RC梁-柱节点抗震性能研究

DOI: 10.6052/j.issn.1000-4750.2014.05.S015

Keywords: Bouc-Wen模型,RC梁-柱节点,捏缩效应,OpenSees,抗震性能

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Abstract:

在传统的Bouc-Wen材料模型中引入捏缩函数,提出了一种可以考虑材料捏缩行为的改进Bouc-Wen材料模型。将该模型引入到OpenSees软件平台中,基于Joint2D节点单元,对钢筋混凝土(RC)梁-柱节点的抗震性能进行了研究。通过对两个钢筋混凝土梁-柱中节点的往复加载试验结果进行数值模拟,验证了该文提出的改进Bouc-Wen模型的合理性。进一步对RC框架梁-柱节点抗震性能的影响因素进行了研究,结果表明:截面高宽比和剪跨比对节点的剪切强度和延性影响显著。

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