短肢墙对型钢混凝土异型边节点抗震性能影响分析  

An impact analysis on seismic behavior of steel reinforced concrete abnormal exterior joint with effect of short-limb wall

作　　者：白国良[1] 李瑞文[1] 朱佳宁[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2014年第6期774-779,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(51178383);国家自然科学基金项目(51478381);教育部博士点基金项目(20136120110004;20106120120002)

摘　　要：以某大型型钢混凝土结构主厂房为原型,采用ABAQUS混凝土塑性损伤本构模型,研究配置不同方向的短肢墙对SRC异型边节点抗震性能的影响程度.数值分析表明:配置纵向短肢墙可以改善该类异型边节点延性与破坏机制,避免"柱铰型"破坏机制出现;配置横向短肢墙可以大幅度提高该类异型边节点承载力与刚度,并有效地降低了刚度退化率;配置双向短肢墙可以明显地增大该类异型边节点滞回面积,改善抗震性能.The paper presents the studies on different seismic behavior of steel reinforced concrete （SRC） abnormal exterior joint with short-limb wall at different directions, by concrete damaged plasticity model of ABAQUS, based on the steel reinforced concrete frame main power house. Numerical analysis indicates that the short-limb wall at longitudinal direction can improve the ductility and failure mechanism of the joint, avoiding the failure mechanism at column hinge. The short-limb wall at transverse direction can increase capacity and stiffness of the joint substantially, and decrease the degradation rate of stiffness. The short-limb wall can enlarge the area of hysteretic hoop and improve seismic behavior of the joint.

关 键 词：SRC异型边节点 抗震性能 混凝土塑性损伤模型 短肢墙 

分 类 号：TU398[建筑科学—结构工程] P315.92[天文地球—地震学]