用有限元软件ANSYS对内加强环式钢管混凝土柱一钢梁节点的刚性进行研究。分析结果表明,在所有的影响因素中,对节点刚度影响最大的是梁的截面高度,而梁腹板的厚度对节点刚度几乎没有影响。最后建立节点的M-θ曲线表达式,以供设计应用。
this paper makes research on the stiffness of CFT column and steel beam joint with inner stiffening ring by using finite element analysis(FEA) program ANSYS. Analysis result indicates that the most important factor influencing the stiffness of the joint is the height of cross-section of beam while the thickness of the web plate hardly has any influence on the stiffness. The M-θmodel of the CFT joint given by this paper can be used in practical design.