刘海卿，  孔德利，  王锦力
   （辽宁工程技术大学建筑工程学院，阜新 123000）

[摘要] 通过研究不同截面形式异形柱梁柱节点，并引入135⁰L形异形柱梁柱节点进行抗震性能数值模拟对比分析，研究了不同截面形式异形柱梁柱节点的滞回曲线、延性系数、极限荷载及骨架曲线等因素对抗震性能的影响。结果表明：异形柱梁柱节点的延性、耗能能力与柱截面形式有关；双向荷载情况下，异形柱梁柱节点的屈服荷载、极限荷载及破坏荷载均较单向荷载情况下小；135⁰L形异形柱梁柱节点的位移延性系数较小，耗能能力弱于其他截面形式节点，在结构设计中应适当加强配筋。
[关键词] 异形柱；节点；反复荷载；不同截面；抗震性能
中图分类号：TU375.3    文献标识码：A    文章编号：1002-848X(2012) Sl-0776-04

Seismic behavior analysis of different section special-shaped columns joints
Liu Haiqing, Kong Deli, Wang Jinli
( College of Civil Engineering and Architecture, Liaoning Technical University, Fuxin 123000,China)

Abstract: By studying the beam-columns joints of special-shaped columns with different section forms, and introducing the beam-columns joints of L form with 135⁰ special-shaped column, the influence of hysteresis curve, ductility factor, ultimate load and skeleton curve on the aseismic ability of the beam-column joints of special-shaped columns with different section was researched. The results indicate that the ductility and ability of energy dissipation of the beam-column joints of special-shaped columns are related to the section form of columns. The yield load, ultimate load and failure load of the beam-column joint of special-shaped columns in two-way load condition are smaller than that in one way load condition. The displacement ductility coefficient and ability of energy dissipation of beam column joint of L form with 135⁰ special-shaped column are smaller than that of columns with other section forms. So the appropriate reinforcement should be strengthened during the structural design process.
Keywords: special-shaped columns; joint; repeated loading; different section; seisnuc performance