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中文摘要：
地震中钢框架的破坏大量表现为梁柱连接节点的破坏。其破坏形式和破坏性质与节点细部构造密切相关，梁柱连接节点不同腹板切角构造形式（又称作工艺孔）是主要影响因素之一．借助有限元技术，对梁柱栓焊混合连接节点中不同腹板切角构造形式进行研究，揭示不同切角形式切角部位应力集中程度及应力分布规律，又通过对4种不同腹板切角构造形式节点的滞回性能分析，综合得出圆弧Ⅱ形切角及扇形切角为较理想的切角形式．
英文摘要：
The majority of damage of the steel frame in earthquake takes the form of destruction of beam- column joints and the failure mode and failure properties are closely related to the details of joint structure, among them the web corner cutting forms （also known as technological hole） of the beam-column joints is one of the main influencing factors. With the help of the finite element technique, different web corner cutting forms of the Beam-column bolt-weld mixed connection joints were studied, revealing the degree of stress concentration and stress distribution for different web corner cutting forms. In addition, by means of analyzing hysteretie performance of four different web corner cutting forms of the joints, it was compre- hensively obtained that type- Ⅱ are corner cutting and seetorial corner cutting were the ideal cutting forms.
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