Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads

Three-layer concrete slabs are considered where each layer is formed of its concrete grade. These slabs are widely used in the construction industry, particularly in the construction of agricultural buildings and structures; thus, calculating these slabs under the external loads and forces caused by...

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Main Authors: Nemirovskii Yuri, Tikhonov Sergey
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02011.pdf
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author Nemirovskii Yuri
Tikhonov Sergey
author_facet Nemirovskii Yuri
Tikhonov Sergey
author_sort Nemirovskii Yuri
collection DOAJ
description Three-layer concrete slabs are considered where each layer is formed of its concrete grade. These slabs are widely used in the construction industry, particularly in the construction of agricultural buildings and structures; thus, calculating these slabs under the external loads and forces caused by their weight is an important and relevant task. It is assumed that the concretes are non-linearly formed, and the ratios between stresses and strains are taken as the third-order polynomials with different coefficients for the different grades of concrete. The slabs are supposed to be sufficiently thin, and the Kirchhoff-Lyav hypotheses are valid. The equations of the Genka-Ilyushin deformation theory are used as the equations for the state of phase materials of the considered hybrid slabs. The complete systems of resolving equations are obtained, the equations are solved by the Bubnov-Galerkin method, and the resulting systems of algebraic equations are solved numerically in the Maple mathematical package. The graphs of the slabs' deflection and the deformation values at each point of the slab are obtained. The significant difference is shown in the maximum deflections and deformations with and without considering the slab's weight.
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spelling doaj.art-7062370e9d554afb9416deef11ea10aa2023-01-31T09:54:02ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013650201110.1051/e3sconf/202336502011e3sconf_conmechydro2023_02011Deformation of multilayered physically nonlinear concrete slabs by quasi-static loadsNemirovskii Yuri0Tikhonov Sergey1Khristianovich institute of theoretical and applied mechanics SB RASChuvash state university named after I.N. UlyanovThree-layer concrete slabs are considered where each layer is formed of its concrete grade. These slabs are widely used in the construction industry, particularly in the construction of agricultural buildings and structures; thus, calculating these slabs under the external loads and forces caused by their weight is an important and relevant task. It is assumed that the concretes are non-linearly formed, and the ratios between stresses and strains are taken as the third-order polynomials with different coefficients for the different grades of concrete. The slabs are supposed to be sufficiently thin, and the Kirchhoff-Lyav hypotheses are valid. The equations of the Genka-Ilyushin deformation theory are used as the equations for the state of phase materials of the considered hybrid slabs. The complete systems of resolving equations are obtained, the equations are solved by the Bubnov-Galerkin method, and the resulting systems of algebraic equations are solved numerically in the Maple mathematical package. The graphs of the slabs' deflection and the deformation values at each point of the slab are obtained. The significant difference is shown in the maximum deflections and deformations with and without considering the slab's weight.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02011.pdf
spellingShingle Nemirovskii Yuri
Tikhonov Sergey
Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
E3S Web of Conferences
title Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
title_full Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
title_fullStr Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
title_full_unstemmed Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
title_short Deformation of multilayered physically nonlinear concrete slabs by quasi-static loads
title_sort deformation of multilayered physically nonlinear concrete slabs by quasi static loads
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02011.pdf
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