【摘要】 针对钢框架结构中梁柱节点在震害中的脆断破坏,利用有限元计算程序ANSYS对梁柱腹板连接试件模型进行循环加载计算,通过对试件滞回特性、节点域应力分布详细研究后得出,节点域有较好的延性和耗能能力,并揭示了节点发生脆断的原因缘于焊缝处剪应力集中,为该种连接钢框架的设计及理论分析提供了依据.更多还原

【Abstract】 In view of the brittle fracture of beam-column connection in steel frame structure in earthquakes,a beam-column web connection is designed to be anayzed by FEM under circular loading.The hysteresis performance and stress distribution of connection and panel zone calculated systematically by FEM show that,panel zone has good ductility and energy dissipation,the brittle fracture of the connection starts at the stress concentrated zone in butt weld.A reference basis is provided for construction design and theoretical analysis of such connection frames.更多还原