Strength of Short Concrete Filled Steel Tube columns of Annular Cross Section

International Multi-Conference on Industrial Engineering and Modern technologies

Krishan, A.L.^1 ; Rimshin, V.I.^2 ; Troshkina, E.A.^3

Department of Building Design and Constructions, Nosov Magnitogorsk State Technical University, Uritsky, 11, Magnitogorsk

455000, Russia^1

Russian Academy of Architecture and Construction Sciences, Institute of Urban Development, Moscow

107031, Russia^2

Department of Construction Engineering, Nosov Magnitogorsk State Technical University, Uritsky, 11, Magnitogorsk

455000, Russia^3

关键词: Calculation procedure;    Complex stress state;    Concrete core;    Concrete filled steel tube columns;    Concrete types;    Non-uniform distribution;    Reinforcement bar;    Steel shells;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/463/2/022062/pdf
DOI  :  10.1088/1757-899X/463/2/022062

来源: IOP

【 摘 要 】

The procedure for calculating the strength of short centrally compressed concrete filled steel tube columns of annular cross-section is presented in the paper. The procedure takes into account the complex stress state of the concrete core and the steel shell as well as the nonuniform distribution of transversal stresses across the cross-section of the calculated element. When there are reinforcement bars in the concrete, the stress in these bars must be calculated taking into account the increased deformability of concrete. The proposed calculation procedure is applicable to structures made of different concrete types and steel grades.