王元清, 乔学良, 贾连光, 张天雄, 蒋庆林. 单调加载下不锈钢结构梁柱栓焊混用节点承载性能分析[J]. 工程力学, 2019, 36(S1): 59-65. DOI: 10.6052/j.issn.1000-4750.2018.07.S008
引用本文: 王元清, 乔学良, 贾连光, 张天雄, 蒋庆林. 单调加载下不锈钢结构梁柱栓焊混用节点承载性能分析[J]. 工程力学, 2019, 36(S1): 59-65. DOI: 10.6052/j.issn.1000-4750.2018.07.S008
WANG Yuan-qing, QIAO Xue-liang, JIA Lian-guang, ZHANG Tian-xiong, JIANG Qing-lin. EXPERIMENTAL RESEARCH AND FEM ANALYSIS ON BEHAVIOR OF BEAM-COLUMN CONNECTIONS MADE OF STAINLESS-STEEL[J]. Engineering Mechanics, 2019, 36(S1): 59-65. DOI: 10.6052/j.issn.1000-4750.2018.07.S008
Citation: WANG Yuan-qing, QIAO Xue-liang, JIA Lian-guang, ZHANG Tian-xiong, JIANG Qing-lin. EXPERIMENTAL RESEARCH AND FEM ANALYSIS ON BEHAVIOR OF BEAM-COLUMN CONNECTIONS MADE OF STAINLESS-STEEL[J]. Engineering Mechanics, 2019, 36(S1): 59-65. DOI: 10.6052/j.issn.1000-4750.2018.07.S008

单调加载下不锈钢结构梁柱栓焊混用节点承载性能分析

EXPERIMENTAL RESEARCH AND FEM ANALYSIS ON BEHAVIOR OF BEAM-COLUMN CONNECTIONS MADE OF STAINLESS-STEEL

  • 摘要: 为了进一步探索研究国内S31608不锈钢材梁柱栓焊混用节点的承载性能及变形能力,该文采用有限元软件ABAQUS建立了6个非线性有限元模型,根据S31608不锈钢材及A4-80螺栓材料本构关系,采用高效精确的有限元模型对不锈钢材梁柱节点在单调加载下的受力性能进行模拟,分析了节点试件梁翼缘板沿梁长方向、焊接孔末端梁宽度方向和剪切板根部的应力分布状况。选取其中一个不锈钢结构梁柱栓焊节点在单调荷载作用下进行了试验验证,试验节点试件螺栓选用不锈钢A4-80螺栓,剪切板与腹板之间连接采用承压型连接开孔受力。试验和模拟结果显示梁柱栓焊节点最大承载力分别为251.6 kN和246.1 kN,最大位移分别为197.9 mm和196.1 mm,模拟结果与试验结果吻合度是较好的,而且模拟结果偏安全,可以在后期的参数分析中用此模型进行分析。试验结果也证明了之前循环试验结果的准确性。

     

    Abstract: In order to study further the resistance and rotation capacity of beam-column connections made of stain-steel S31608, this paper presents the experimental results of connection details under monotonic loading. stainless-steel bolts A4-80 and bearing connection instead of friction type connection are adopted for beam-column connections to improve connection form. An efficient and accuracy FEM model is proposed for numerical simulation under monotonic loading based on the material stress-strain relationship of stain-steel structure and bole A4-80. The connection strength and stress concentration at the end of the weld access hole and the root and the longitudinal direction of the wing plate of a connection are analyzed and compared between the connections. The comparison between FEA results and experimental data shows that the maximum bearing capacity is 251.6 kN and 246.3 kN, and that the maximum displacement is 197.9mm and 196.1mm respectively. Thusly, the nonlinear FEA method is satisfactory in simulating the behavior of bolt connections under monotonic loading and utilizable for later parameter analysis appropriately.

     

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