RIGIDITY AND STRENGTH ANALYSIS OF REINFORCED CONCRETE BEAMS BY VARYING ELASTICITY MODULUS
https://doi.org/10.31675/1607-1859-2018-20-4-86-93
Abstract
Relevance: The actual values of the elastic modulus used for manufacturing reinforced concrete products and concrete structures may differ significantly from those given in SNiP 63.13330. It is therefore interesting to estimate the rational value of the elasticity modulus of concrete for a particular design. Purpose: Calculation algorithm is proposed for normal stresses and deformations based on variation of the elasticity modulus of concrete by controlling prescribed and technological factors. Materials and methods: Ordinary concrete grades up to В120 grade with organic and mineral modifiers, reinforced concrete beams, modeling, numerical experiment, beam analysis by normal stresses and deformations. Results: The proposed beam analysis algorithm considers a possible change up to 2 times in the elasticity modulus of concrete. Conclusions: Calculations of the elasticity modulus ensure the beam rigidity, taking into account its reinforcement and cross-sectional parameters and strength for normal stresses at a concrete strength normalization corresponding to the elastic modulus, with regard to prescribed and technological factors.
About the Authors
D. R. Mailyan
Don State Technical University
Ukraine
DSc, Professor
Ukraine
DSc, Professor
G. V. Nesvetaev
Don State Technical University
Ukraine
DSc, Professor
Ukraine
DSc, Professor
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Review
For citations:
Mailyan D.R., Nesvetaev G.V. RIGIDITY AND STRENGTH ANALYSIS OF REINFORCED CONCRETE BEAMS BY VARYING ELASTICITY MODULUS. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2018;(4):86-93. (In Russ.) https://doi.org/10.31675/1607-1859-2018-20-4-86-93
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