论文部分内容阅读
N型圆钢管相贯节点是钢管结构中常用的节点形式。为了研究不同几何参数对N型圆钢管相贯节点滞回性能的影响,针对不同的几何参数,支、主管直径比β,主管厚径比γ,两支管间隙比,两支管间的夹角,建立模型进行有限元分析,得到几何参数取不同值时,节点在低周反复荷载作用下的滞回曲线、骨架曲线。通过有限元结果的对比与分析,得到不同几何参数对N型圆钢管相贯节点滞回性能的影响。
N-type tubular intersecting joints are commonly used in the steel structure of the node form. In order to study the influence of different geometrical parameters on the hysteretic behavior of tubular joints with N-type circular tubes, according to different geometric parameters, branch-to-branch diameter ratio β, director thickness-diameter ratio γ, clearance ratio of two branches, angle between two branches, The model was established for finite element analysis, and the hysteresis curve and the skeleton curve of the joint under low cyclic loading were obtained when the geometric parameters were taken as different values. Through the comparison and analysis of the finite element results, the influence of different geometric parameters on the hysteretic behavior of tubular N-joints was obtained.