方钢管、高强箍筋双重约束下混凝土柱强度取值研究  

STUDY ON VALUE OF CONCRETE STRENGTH CONFINED BY BOTH THE SQUARE STEEL TUBULAR AND HIGH-STRENGTH STIRRUPS

作　　者：张海[1] 王龙[1] 王玉良[1] 郝晓飞[1] 

机构地区：[1]天津城建大学土木工程学院,天津300384

出　　处：《建筑技术》2014年第12期1091-1093,共3页Architecture Technology

基　　金：天津市应用基础与前沿技术研究计划(12JCQNJC05300);天津市中青年骨干创新人才培养计划(02130202)

摘　　要：为深入探究双重约束下混凝土柱的受力性能,分析钢管和高强箍筋单独约束下混凝土正截面受力机理,在此基础上研究方钢管、高强箍筋双重约束混凝土的受压性能,利用叠加原理和数据线性拟合方法提出双重约束混凝土柱正截面抗压强度取值计算公式。通过试验验证,采用该方法计算结果与试验值较接近。In order to delve into the behavior of concrete column under the double constraints force performance ,analysis of the mechanical behavior of concrete confined alone by the square steel tubular and high-strength stirrups, then study on the value of the concrete mechanical performance confined by both the square steel tubular and high-strength stirrups. According to the principle of superposition and linear data fitting method, come up with the simple formula of the concrete flexure strength confined by the double restraints. Through experimental verification, it shows that the calculation results are close to the test value.

关 键 词：方钢管混凝土柱 双重约束 正截面强度 叠加原理 

分 类 号：TU398[建筑科学—结构工程]