Due to many advantages, prefabricated buildings are the trend of future development. In order to study the mechanical properties of the steel structure beam-beam connection node, referring to related materials, this paper designs a bolted connection node between main and secondary steel beams. By changing the key parameters such as the thickness of the supporting plate and the diameter of the bolt, the finite element software ABAQUS is used to simulate the primary and secondary beam nodes. Based on the finite element results, the force mechanism, failure mode, flexural bearing capacity and rotational stiffness of the nodes are analyzed, and some parameter design suggestions are proposed: the thickness of the supporting plate should not be less than 8mm, and the bolt diameter should not be less than 20mm.

由于诸多优势，装配式建筑是未来发展的趋势。为研究钢结构梁-梁连接节点的力学性能，参考相关资料，设计了主、次钢梁之间的螺栓连接节点。通过改变支撑板厚度、螺栓直径等关键参数，利用有限元软件ABAQUS对主次梁节点进行仿真。在有限元结果的基础上，对节点的受力机理、失效模式、抗弯承载力和转动刚度进行了分析，提出了一些参数设计建议：支撑板的厚度不小于8mm，螺栓直径不应小于20mm。