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工程力学  2015 

具有自复位功能装配式框架节点抗震性能的影响因素分析

DOI: 10.6052/j.issn.1000-4750.2014.05.S017, PP. 72-77

Keywords: 自复位,预制混凝土,框架节点,有限元分析,抗震性能

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Abstract:

具有自复位功能的装配式框架节点采取一种“干式”拼接方法,通过预应力筋提供自复位能力。为了探明具有自复位功能框架节点抗震性能的影响主要因素,该文运用有限元软件ABAQUS分别以节点预应力筋的张拉应力、预应力筋的数量、节点配筋率等为参数进行了单调加载和低周往复荷载下计算分析。分析结果表明预应力筋数量对自复位预制框架节点抗震性能影响大,张拉应力在一定范围内有明显影响,普通钢筋的配筋率影响较小。研究成果对装配式框架的推广应用有一定指导意义。

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