双剪统一强度理论下钢管混凝土承载力的理论分析及试验研究  

Experimental and theoretical investigation of load capacities of concrete filled steel tube based on the twin shear unified strength theory(TSUST)

作　　者：马淑芳[1] 赵均海[1] 魏雪英[1] 

机构地区：[1]长安大学建筑工程学院,陕西西安710061

出　　处：《西安建筑科技大学学报（自然科学版）》2007年第2期206-212,共7页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：教育部博士点基金资助项目(20040710001);陕西省自然科学基金资助项目(2005E204)

摘　　要：制作了25个钢管混凝土试件,进行了钢管混凝土试件的轴心受压和偏心受压试验,得出了其荷载变形曲线及极限荷载,以双剪统一强度理论为基础,推导出钢管混凝土核心混凝土抗压强度的计算公式,并进行了钢管混凝土承载力的理论计算,所得理论结果与试验结果基本一致,说明双剪统一强度理论对于钢管混凝土的理论计算有非常好的适用性,为钢管混凝土的分析计算提供了一定的理论依据.An experimental investigation into the behavior of concrete filled steel tube columns using twenty five specimens has been conducted, nine under uniaxial loading and sixteen under eeeentrical loading. This paper presents the details and results of the tests. The load displacement curves and the ultimate loads of the specimens were obtained from the test. Analytical study was also performed in this paper. The compressive strength of the concrete was predicted based on the TSUST. The load capacity of the column was evaluated. The column strengths obtained from the theoretical analysis were compared with the experimental results and good agreements can be observed.

关 键 词：钢管混凝土 试验研究 双剪统一强度理论 承载力 

分 类 号：TU398[建筑科学—结构工程]