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钢框架柱外传力式节点试验与有限元分析

Building Structure(2013)

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Abstract
基于2个新型柱外传力式节点和2个传统节点的试验结果,采用大型有限元软件ANSYS对节点在单调荷载作用下的受力性能进行有限元分析,研究了两类节点的极限荷载、应力分布、应力发展规律、破坏形态。有限元计算得到的荷载-位移曲线和局部破坏形态与试验结果吻合较好。研究结果表明,增设传力板使得节点应力得到改善,从而避免梁根部应力发展导致梁柱连接处焊缝过早地发生脆性破坏,而且增设传力板使得节点承载力得到提高。
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Key words
finite element analysis,joint,experiment,forces transferring outside columns,transfer plate
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