关键词: 工程结构, 钢结构, 半刚性, 端板连接, 弯矩转角, 滞回模型

Abstract: Facing the complexity and application difficulty of momentrotation (Mφ) hysteretic model in the dynamic time history analysis on the endplateconnected multistory antiseismic steel frame, domestic and overseas Mφ hysteretic models about endplate connection were summarized, and suggestions on the standard details of semirigid endplate connections used in the multistory antiseismic steel frame were proposed to ensure the joint strength and ductility. For such endplate connections, a 4parameter kinematic hardening Mφ hysteretic model was proposed, and the corresponding detailed calculation method was given. The calculation results were compared with those obtained by relevant cyclic loading test results, and the validity of this proposed model was verified.

Key words: engineering structure, steel structure, semirigid, endplate connection, momentrotation, hysteretic model