不等肢异形柱截面曲率延性分析  

Analysis of Curvature Ductility Ratio for the Cross-section of R.C Inequiaxial Special-shaped Columns

作　　者：张新培[1] 陈伟[1] 张翼[1] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2006年第4期44-48,共5页Journal of Sichuan University (Engineering Science Edition)

摘　　要：采用非线性全过程数值分析方法,计算了钢筋混凝土不等肢T形、L形和十字形柱截面模型在多种工况下的截面曲率延性比。以此为基础,对影响不等肢T形、L形、十字形异形柱截面曲率延性的主要因素作了统计分析,建立了轴压比、纵筋配筋率、体积配箍率、纵筋等级和砼等级等因素与不等肢异形柱截面曲率延性的关系,为不等肢异形柱抗震性能评估提供了依据。The cross-section curvature ductility ratio for R. C inequiaxial T-shaped , L-shaped and cross-shaped columns is calculated by numerical method. On the basis of calculation results, the influence of design parametrs（axial compression ratio, content of longitudinal reinforcement, content of stirrup, grade of concrete strength and grade of longitudinal reinforcement） on the cross-section curvature ductility ratio is analyzed. The relationships between cross-section curvature ductility ratio versus the parameters are presented. It＇s helpful for the evaluation of aseismatic performance on R. C inequiaxial T-shaped , L-shaped and cross-shaped columns.

关 键 词：非线性分析 不等肢异形柱 曲率延性比 

分 类 号：TU375.3[建筑科学—结构工程]