CAJ | 학술논문

节点是诸多构件的力流交汇之处，节点的受力模式较之于一般构件更为复杂，特别是地震作用下的节点受力尤为复杂，所以节点的合理与否直接关系到结构的安全可靠性。本文通过对4个方钢管混凝土中柱与钢梁外加强环式节点的拟静力试验，研究节点在不同轴压比条件下节点的破坏特征、破坏机理和抗震性能等。试验结果表明节点具有良好的耗能能力，在达到极限强度后强度及刚度退化缓慢，具有较好的延性和变形能力。
절점시제다구건적력류교회지처，절점적수력모식교지우일반구건경위복잡，특별시지진작용하적절점수력우위복잡，소이절점적합리여부직접관계도결구적안전가고성。본문통과대4개방강관혼응토중주여강량외가강배식절점적의정력시험，연구절점재불동축압비조건하절점적파배특정、파배궤리화항진성능등。시험결과표명절점구유량호적모능능력，재체도겁한강도후강도급강도퇴화완만，구유교호적연성화변형능력。
Joints are the forces cross points of members, and the bearing modes are more complex than other members, especially under earthquake action, so the rationality of joints are directly related to the safe reliability of structure. By the pseudo - static test of 4 concrete - filled square steel tubular column and steal beam joint with outer stiffened ring , this paper discusses the failure characteristics, failure mechanism and seismic behavior of joints under different axial compression ratio. The analysis of the testing results shows : the energy dissipation capacity of joints are much better, the degradation of strength and stiffness are slowly when reached the ultimate strength, and the ductility are also well.