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(西安建筑科技大學(xué)，西安 710055)

［摘要］針對(duì)低、多層鋼框架中常用的外伸端板螺栓連接節(jié)點(diǎn)的受力性能，在以往的試驗(yàn)數(shù)據(jù)和數(shù)值仿真分析的基礎(chǔ)上進(jìn)行了深入研究，提出了采用極限模態(tài)控制法的三參數(shù)M-θ曲線方程，計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合較好，可依據(jù)此方程，在知道連接節(jié)點(diǎn)的幾何參數(shù)和材料性能的情況下計(jì)算出節(jié)點(diǎn)的M-θ曲線，為工程設(shè)計(jì)實(shí)踐提供依據(jù)。

［關(guān)鍵詞］鋼框架；端板連接；曲線；極限彎矩

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