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工程力学  2014 

OpenSEES中混凝土框架结构节点模型关键问题的研究与验证

DOI: 10.6052/j.issn.1000-4750.2012.04.0262, PP. 116-121

Keywords: 梁柱节点单元,低周反复荷载,滞回环,剪切板,钢筋滑移,纤维模型

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Abstract:

为了研究钢筋混凝土框架节点的数值模拟方法,该文采用有限元软件OpenSEES中的梁柱节点单元对节点进行数值模拟分析。主要研究如何模拟节点核心区混凝土非线性抗剪性能和核心区梁柱纵筋锚固滑移性能两个因素对节点反应的影响,并应用该模型模拟低周反复荷载下的1个边节点和5个中节点的试验模型。结果对比显示该模型能够比较准确的模拟钢筋混凝土节点的非线性反应。

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