中文摘要：

以某体育馆复杂空间管桁架的圆钢管相贯节点为背景，应用有限元程序对相贯节点在特定受力情况下的节点承载力进行了分析，提出了一种较为可行的节点承载力的判定准则和有限元计算方法，以作为对现行钢结构规范的相贯节点计算方法的数值计算补充；并对有限元分析过程和其中碰到的问题进行了较为具体的阐述，供相关研究和设计人员参考。

英文摘要：

In this article the bearing capacity of complex spatial steel tubular joints of some gymnasium is analyzed by the finite element method on the specified condition of fixed force. A feasible judgment rule and computing method of finite element are put forward and supplied to the “Code for design of steel structures” about the bearing capacity of steel tubular joints. The analysis process of finite element and some questions in the process have been mentioned in detail. Through the analysis, solutions can provide some reference for correlative researchers and designers.