中文摘要：

为研究不同构造对钢框架端板连接半刚性节点受力性能的影响，采用通用有限元软件ABAQUS建立非线性有限元模型，对单元选取，螺栓受力行为、材料本构以及接触模型等方面进行详细说明；结合国内外已有的钢框架端板连接半刚性节点拟静力试验，对比分析有限元分析和试验结果，深入探讨了钢框架端板连接半刚性节点的受力性能。试验和有限元分析结果均表明：有限元方法可以有效预测各种构造类型钢框架粱柱端板连接节点的承载能力、滞回性能、极限变形状态以及破坏模式等；平齐式端板连接的特性更接近于铰接节点，承载力和刚度降低近50％，并且滞回曲线出现严重劣化；而外伸端板采用加劲肋后，能够起到很好的耗能元件的作用，可以使得节点获得良好受力性能。研究成果为钢框架端板连接半刚性节点设计与施工提供参考。

英文摘要：

In order to study the effect of various tectonics on the behavior of steel frame end-plate connections, non-linear finite element model is established using ABAQUS, with detailed description about how to choose elements types, bolts force behavior, the material stress-strain relationship and contact model. Non-linear finite element model is proved correct and applicable compared with existed steel frame-composite connections quasi-static tests home and abroad. With the comparison between finite element analysis and tests results, the behavior of end-plate connections is further discussed. The results show that： the finite element analysis method can effectively predict the capacity behavior, hysteresis properties, ultimate deformation and damage modes of steel frame end-plate connections with various tectonics; the characteristics of flush-type end-plate connections are closer to hinge ones, bearing capacity and stiffness are reduced by nearly 50% and the hysteresis curve has a serious deterioration; reasonable stiffening ribs of extended end-plate are good energy-consuming components which can make for good mechanical properties of the connections. These research results provide a reference for design and construction.