Bearing capacity and rigidity of short plastic-concrete-tubal vertical columns under transverse load

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Dolzhenko, A.V.^1 ; Naumov, A.E.^1 ; Shevchenko, A.E.^1

Belgorod State Technological University Named after V.G. Shoukhov, 46 Kostyukov St., Belgorod

308012, Russia^1

关键词: Cracking resistance;    Distribution parameters;    Equivalent stress;    Horizontal loads;    Horizontal stiffness;    Quantitative parameters;    Structural walls;    Vertical constructions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/4/042024/pdf
DOI  :  10.1088/1757-899X/327/4/042024

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The results of mathematical modeling in determining strain-stress distribution parameters of a short plastic-concrete-tubal vertical column under horizontal load as those in vertical constructions are described. Quantitative parameters of strain-stress distribution during vertical and horizontal loads and horizontal stiffness were determined by finite element modeling. The internal stress in the concrete column core was analyzed according to equivalent stress in Mohr theory of failure. It was determined that the bearing capacity of a short plastic-concrete-tubal vertical column is 25% higher in resistibility and 15% higher in rigidness than those of the caseless concrete columns equal in size. Cracks formation in the core of a short plastic-concrete-tubal vertical column happens under significantly bigger horizontal loads with less amount of concrete spent than that in caseless concrete columns. The significant increase of bearing capacity and cracking resistance of a short plastic-concrete-tubal vertical column under vertical and horizontal loads allows recommending them as highly effective and highly reliable structural wall elements in civil engineering.