建筑结构学报2012，Vol.33Issue(6)：103-109,7.
钢筋混凝土方形柱延性性能及轴压比限值研究
Research on limiting value of axial compression ratio and ductility behavior of RC square column
许贻懂 1王启文 1陈云霞2
作者信息
- 1. 深圳市建筑设计研究总院有限公司,广东深圳518031
- 2. 天津大学建筑工程学院,天津300072
- 折叠
摘要
Abstract
According to the principle of biaxially eccentric loading for RC column and nonlinear analysis,ductility of 16 539 square columns＇ section were calculated and analyzed,including many relevant factors including direction angle of action of bending moment,axial force ratio and scheme of lateral reinforcement etc.The dominating factors of ductility of square columns were obtained in terms of axial compression ratio and arrangement of hoop reinforcement.Ductility behavior of square columns were summarized.The following conclusions are drawn.With increased axial compression ratio,ductility of square column is down.When the volumetric ratio of reinforcement for the stirrups or hoops is same,columns＇ ductility with arrangement of lesser diameter stirrup and space between hoops is more than bigger diameter stirrup and space between hoops.On the other hand,only considering longitudinal bar of brace length at the same time,improving the volumetric ratio of reinforcement of the stirrups or hoops with different diameter stirrup and space between hoops will effectively improve columns＇ ductility.On the base of regression analysis for the ductility of square columns＇,the limiting value of axial compression ratio of square column is obtained in relation with characteristic value of providing stirrup or hoop.关键词
钢筋混凝土方形柱/数值分析/延性性能/轴压比限值/配箍特征值Key words
RC square column/numerical analysis/ductility behavior/limiting value of axial compression ratio/characteristic value of providing stirrup or hoop分类
建筑与水利引用本文复制引用
许贻懂,王启文,陈云霞..钢筋混凝土方形柱延性性能及轴压比限值研究[J].建筑结构学报,2012,33(6):103-109,7.
