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为研究边柱埋入式钢柱脚节点U型钢筋的设置对节点受力性能的影响,掌握节点的破坏机理,进行了ABAQUS单调加载非线性有限元分析,根据分析结果,得到柱脚节点的应力变化过程、弯矩-转角曲线等。并得到边柱埋入式钢柱脚节点的破坏机理,建议现行规范JGJ 99—98《高层建筑钢结构设计规程》对边柱埋入式柱脚增加设置U型钢筋的相关条文。
In order to study the influence of the U-shaped steel bars embedded in the columns and columns of the side columns on the mechanical behaviors of the joints and the failure mechanism of the joints, the ABAQUS monotonic loading nonlinear finite element analysis is carried out. According to the analysis results, Stress change process, bending moment - corner curve and so on. And the failure mechanism of the embedded steel column and leg joints of the side columns is obtained. It is suggested that the relevant provisions of the existing code JGJ 99-98 “Design Code for Steel Structure of Tall Buildings” be added to the U-shaped steel bars for the embedded columns with side columns.