高强箍筋约束高强混凝土柱的抗轴压性能  

AXIAL COMPRESSION PERFORMANCE OF HIGH-STRENGTH CONCRETE COLUMNS CONFINED BY HIGH-STRENGTH STIRRUPS

作　　者：杨坤[1] 史庆轩[2] 赵均海[1] 郭亚妮[3] 

机构地区：[1]长安大学建筑工程学院,西安710061 [2]西安建筑科技大学土木工程学院,西安710055 [3]中石化宁波工程公司,浙江宁波315103

出　　处：《工业建筑》2013年第2期9-13,28,共6页Industrial Construction

基　　金：国家自然科学基金项目(51178380;50978215);中央高校基本科研业务费专项资金资助(CHD2010JC120)

摘　　要：为了研究高强箍筋约束高强混凝土柱的抗轴压性能,定量分析该类型柱的强度和变形提高程度,进行了31根高强箍筋约束高强混凝土方形截面柱的轴心受压试验。在试验的基础上,分析箍筋强度、箍筋间距和箍筋形式对其强度和变形性能的影响;结合国内外试验数据,通过回归分析提出高强箍筋约束高强混凝土峰值强度和极限应变的计算公式。The objective of this study is to study the axial compression performance,including strength and deformation behaviours of HSC columns confined by high-strength stirrups,and determine experimentally and analytically the magnitude of its strength enhancement.On the basis of a concentric loading test of 31 HSC columns confined by high-strength stirrups,the influences of the tie yield strength,tie spacing,and tie configuration on the characteristics of strength and ductility were evaluated;based on the test data at home and abroad,the formulas to determine peak strength and ultimate strain of high-strength concrete confined by high-strength stirrups were proposed by regression analysis.

关 键 词：高强箍筋 高强混凝土 约束混凝土 强度和变形 

分 类 号：TU375.3[建筑科学—结构工程]