对圆钢管销铰连接中端板的力学性能进行了研究。建立了端板的简化力学模型,对端板的受力机理进行了探讨。建立了便于使用的端板承载力计算公式,根据建立的100个有限单元参数模型的线弹性计算结果,给出了计算公式中各系数的计算表格,给出了表格的使用方法和算例。最后对计算表格的有效性进行了评价,并得出一些对此类节点设计有参考价值的结论。 The mechanical properties of the mid-end plate of the steel pipe pin-hinge connection were studied. A simplified mechanical model of the end plate is established, and the mechanism of the end plate force is discussed. Based on the linear elasticity calculation results of the 100 finite element model established, a calculation table of each coefficient in the calculation formula is given, and the usage and examples of the table are given. Finally, the effectiveness of the calculation form is evaluated, and some conclusions about the design of such nodes are obtained.