空、实心钢管混凝土构件抗扭抗剪性能的研究Ⅱ:强度的理论研究  

Torsion and Shear Behavior Study of Hollow and Solid Concrete Filled Steel Tubular (CFST) Members Ⅱ:Theoretical Research on Strength

作　　者：谢先义[1] 查晓雄[1] 

机构地区：[1]哈尔滨工业大学深圳研究生院,广东深圳518055

出　　处：《建筑钢结构进展》2012年第3期8-11,共4页Progress in Steel Building Structures

摘　　要：目前,钢管混凝土结构被大量应用和推广,但其剪切及扭转性能的研究都是从有限元分析或者试验出发,得出了回归公式或者经验公式,缺少纯理论上的指导。对钢管混凝土的抗扭承载力进行了理论研究,得到了抗扭承载力的理论计算公式;然后根据钢管混凝土"统一理论"的思想,得到了抗剪极限强度以及抗剪承载力的理论计算公式;最后与若干试验数据以及已有的研究成果进行了对比,证明了理论计算公式的可行性。Currently,the concrete filled steel tube （CFST） structures have been widely used, but the calculation of shear and torsion capacity is starting from FEA or testing,then getting regression formulas or empirical formulas. In this paper, firstly the torsion resistance of CFST is studied by theory,then the formulas of shear strength and shear resistance are obtained based on ＂unified theory＂. At last, the proposed method is verified by experimental data and existing research results, which shows the feasibility of this theoretical formula.

关 键 词：钢管混凝土 抗剪强度 抗扭承载力 理论公式 

分 类 号：TU398[建筑科学—结构工程]