钢管混凝土(单圆管)约束扭转试验研究  

Experimental study on restricted torsion for concrete filled steel tube(single circular)

作　　者：陈宝春[1] 李晓辉[1] 

机构地区：[1]福州大学土木工程学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2008年第5期735-739,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省重大科技资助项目(2003F007)

摘　　要：进行了钢管混凝土构件的约束扭转试验以及空钢管和素混凝土构件的抗扭对比试验.试验结果表明,在钢管混凝土构件的约束扭转受力过程中,钢管与核心混凝土能够协调变形,表现出良好的约束效应和弹塑性形变规律.钢管混凝土的约束抗扭承载力大于相应尺寸的空钢管和素混凝土抗扭承载力的代数和,为计算其约束抗扭承载力提供了依据.The experimentation study for restricted CFST members under torsional loads was carried. Through contrasted analysis among CYST in restricted torsional condition, hollow steel tube and plain concrete, the torsional mechanism of them was studied. The test results show that the steel tube and the core concrete could deform properties. From the experiment harmoniously. It takes on good results, the restricted torsional restricted effection and elastoplastic carrying capacity of CFST is greatly more than the algebraic sum of the hollow steel tube and plain concrete. The foundation of restricted torsional carrying captivity calculation was provided.

关 键 词：钢管混凝土 约束效应 抗扭刚度 扭转机理 抗扭承载力 

分 类 号：TU398[建筑科学—结构工程]