MODELING OF STRESS-STRAIN STATE OF THICK CONCRETE SLABS TAKING THE CREEP OF CONCRETE INTO ACCOUNT

• Main Authors: Batyr M. Yazyev, Anton S. Chepurnenko, Anzhelika V. Saibel
• Format: Article
• Language: English
• Published: Publishing House ASV 2017-12-01
• Series: International Journal for Computational Civil and Structural Engineering
• Subjects: reinforced concrete slabs, the theory of thick plates, creep, viscoelasticity, numerical methods
• Online Access: http://ijccse.iasv.ru/article/view/83

In the article the derivation of the resolving equations for calculation taking into account creep of thick reinforced concrete plates is given. We use the hypothesis of a parabolic law for the distribution of tangential stresses over the thickness of a plate. The problem was reduced to a system of two differential equations with respect to deflection and the function of shear. An example is given of a calculation of a plate hinged on the contour loaded with a uniformly distributed load using a viscoelastic model of hereditary aging of concrete. The solution was carried out using double trigonometric series in combination with the Euler method for determining creep strains.