(西安建筑科技大学，西安 710055)

［摘要］针对低、多层钢框架中常用的外伸端板螺栓连接节点的受力性能，在以往的试验数据和数值仿真分析的基础上进行了深入研究，提出了采用极限模态控制法的三参数M-θ曲线方程，计算结果与试验结果吻合较好，可依据此方程，在知道连接节点的几何参数和材料性能的情况下计算出节点的M-θ曲线，为工程设计实践提供依据。

［关键词］钢框架；端板连接；曲线；极限弯矩

Analysis on M-θcurve model control parameter of extended end plate connection

Lu Xiaosong, Gu Qiang,Chen Xiangrong

(Xi′an University of Architecture and Technology, Xi′an 710055, China)

Abstract:The capacity of the extended end plate connection  usually used in the low or multi-story steel frameworks is studied. The present study is based on the previous experimental and numerical results, and the 3-paramter ultimate model of M-θrelationship is provided. The calculation result of the model is good fit to the date of the test. In this model,the M-θcurve of connection can be got with the parameter of material character and geometry size, and  can be reference for the engineering practice.

Keywords:steel frame; end plate connection; M-θcurve; ultimate-moment