中文摘要：

偏心支撑钢框架结构体系在水平荷载作用下只要求耗能梁段发生屈服，而梁柱等其他构件不允许出现屈服。文章在对试验模型进行有限元分析中发现，在水平荷载作用下支撑下节点板件也出现了屈服现象；为了减小此部位应力及使此模型满足抗震要求，对支撑的节点进行了设计，设计后模型在水平荷载作用下支撑节点应力明显减小，满足了抗震要求。研究结果表明了偏心支撑钢框架支撑节点设计的必要性，对偏心支撑钢框架结构体系的研究和应用有一定的参考意义。

英文摘要：

The link beams of eccentrically braced steel frames can yield under the action of horizontal loading unlike beam, column and other members. In this paper, the nonlinear finite element analysis for the test model of eccentrically braced frame was performed, and the results showed that the lower nodes of the bracing could also yield simultaneously under the action of horizontal loading. In order to reduce the stress of the lower nodes and make this model meet seismic requirements, the bracing nodes were improved. After the bracing nodes were changed, the stress of the bracing nodes obviously decreased and the frame could also meet the seismic requirements under the action of horizontal load- ing. So it is necessary to design the bracing nodes of the eccentrically braced steel frames and the de- sign and analysis of the bracing nodes can offer a reference for the research and application of eccentri- cally braced steel frames.