Bolt end plate connection is one of the most widely used connection methods in steel structures. It is mainly used for beam-column connection and beam-to-beam splicing in a steel frame and a light steel portal steel frame. The connection strength of the bolt end plates of the steel structure under earthquake action reflects the seismic resistance of the steel structure. The analysis method for the bolt end plate connection strength of steel structures under earthquake action is proposed. The finite element model and the model for the bolt end plate strength of the steel structure under earthquake action are established. Under the one-way static load and cyclic load, the connection strength of the bolt end plate connection joints is simulated and analyzed. The analysis results show that under the action of earthquake, the thickness of the bolt end plate has little influence on the contact area, but it has a great influence on the contact stress. Under the action of earthquake, when the column web and the beam are yielded at the same time, the envelope is the fullest, the energy dissipation coefficient is also the largest, and the seismic performance is the best. The analytical results of the tested methods are in good agreement with the actual values, and the correlation coefficient is always greater than 0.99.

螺栓端板连接是钢结构中应用最广泛的连接方式之一。主要用于钢框架和轻钢门式钢框架中的梁柱连接和梁梁拼接。钢结构螺栓端板在地震作用下的连接强度反映了钢结构的抗震能力。提出了地震作用下钢结构螺栓端板连接强度的分析方法。建立了地震作用下钢结构螺栓端板强度有限元模型和模型。在单向静载荷和循环载荷作用下，对螺栓端板连接节点的连接强度进行了模拟分析。分析结果表明，在地震作用下，螺栓端板的厚度对接触面积影响不大，但对接触应力影响很大。在地震作用下，柱腹板和梁同时屈服时，围护结构最饱满，耗能系数也最大，抗震性能最好。所测方法的分析结果与实际值吻合较好，相关系数始终大于0.99。