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

[摘要] 通过对6个135⁰L形截面异形柱边节点进行抗震性能数值模拟研究，分析在低周反复荷载作用下梁截面尺寸、梁配筋、轴压比、核心区体积配箍率及混凝土强度等因素对其抗震性能的影响。结果表明：在高轴压比作用下，虽然对节点的极限承载力有一定的提高，但是其延性和耗能能力较低轴压时弱；在其他条件不变的情况下，提高混凝土强度对节点的延性及耗能能力有所改善；适当加强节点核心区的体积配箍率对节点的抗震性能有所提高。
[关键词] 135⁰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-0783-03

Seismic behavior study of 135⁰ L form reinforced concrete column side joints
Wang Jinli, Liu Haiqing, Kong Deli
( College of Architecture Engineering, Liaoning Technical University, Fuxin 123000, China)

Abstract: Through numerical simulation analysis of the six 135⁰L-shaped section of special-shaped columns side nodes aseismic performance, the influence of beam section size, beam reinforcement, the axial compression ratio, core with volume concrete strength stirru Pratio and other factors on the seismic performance under low reversed cyclic loading were analyzed. The results showed that under the action of the high axial compressive ratio, although the ultimate bearing capacity of node was improved, but its ductility and energy dissipation capacity was lower. In other conditions under the condition of invariable, improving the concrete strength could improve the ductility and energy dissipation capacity. Strengthening the volume of the shear appropriate to node of the stirrup ratio could improve the seismic performance.
Keywords: 135⁰special-shaped columns; joint; repeated loading; different section; seisnuc performance