方钢管混凝土柱-钢梁节点的设计
esign of concrete-filled square tubular column and steel beams joint with internal diaphragms
本文根据试验和理论研究结果，对用于高层建筑的带内隔板的方钢管混凝土柱-钢梁刚性节点的受力特征进行了分析研究，结合《矩形钢管混凝土结构技术规程》(CECS159:2004)的设计规定，给出了梁-柱连接处梁截面的抗弯、剪计算公式及建议。对节点核心区的抗剪，通过受力机理的分析，建立了钢“框架-剪力墙”加混凝土“斜压短柱” 受力体系及其屈服机制，根据塑性极限分析，给出了节点核心区抗剪承载力计算的迭加公式，并与《规程》公式和非线性有限元近似模拟分析结果进行了比较。本文提出的节点核心区抗剪承载力计算公式，能够反映出轴压比的影响，理论相对比较完善，力学概念明确、简单，其计算结果安全合理，可供实际工程设计参考。
ccording to the results of theory and experimental researches in this paper, the load–carrying behavior of beam-column joints with internal diaphragms for high-rise structure are analyzed. The load-carrying capacity formulations for end section of beam to at the column-beam connections are proposed by means of design provisions in the Technical Specification for Structures with Concrete-filled Rectangular Steel Tube Members (CECS159:2004). Based on the analysis of mechanism for joint region, the “frame-wall” and “aslope compression concrete stub column” mechanical models and yielding patterns of core zone of the joints are set up. The shear load-carrying formulation for joint core zone is also given in terms of plastic ultimate analysis. And then, the comparisons between the formulas given in this paper and that of Chinese Design Code(CECS159:2004) and nonlinear FEM as well are presented. Comparison shows that the formulas for determination of shear capacity of core zone at joints pre
周天华、何保康、卢林枫、聂少锋
工程设计、工程测绘
方钢管混凝土柱梁柱节点节点设计节点核心区
concrete-filled steel square tubular columnbeam-column jointdesign of jointcore zone of the joint
周天华,何保康,卢林枫,聂少锋.方钢管混凝土柱-钢梁节点的设计[EB/OL].(2005-07-06)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200507-49.点此复制
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