MODELING OF THE STRESS-STRAIN STATE OF PRESTRESSED REINFORCED CONCRETE ELEMENTS REINFORCED WITH COMPOSITE MATERIAL
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Abstract
The results of applying a deformation and block models to determine the parameters of the stress-strain state and calculate the strength of prestressed bent reinforced concrete elements reinforced in a stretched zone with carbon fiber plates glued to the outer surface of concrete and glued into pre-made vertical grooves are presented. When calculating the parameters of the stress-strain state of reinforced elements, the distribution of relative deformations and stresses in the cross section of the element before reinforcement is taken into account, including the effect of the compression force transmitted to the concrete by the prestressed main reinforcement. The distribution of relative deformations and stresses in the cross section of the prototypes at the main stages corresponding to different loading stages is given. The verification of the proposed methodology for calculating the strength of prestressed bent reinforced concrete elements reinforced with composite material has been carried out.
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References
Kholmyanskii, M.M. (1997). Beton i zhelezobeton. Deformativnost' i prochnost'. Moscow: Stroiizdat. (In Russ.).
Lazovskii, D.N. (1998). Usilenie zhelezobetonnykh konstruktsii ekspluatiruemykh stroitel'nykh sooruzhenii. Novopolotsk: Polots. gos. un-t. (In Russ.).
Shcherbo, A.G. & Lazovskii, A.D. (2008). Usilenie izgibaemykh stal'nykh i stalebetonnykh stroitel'nykh konstruktsii kompozitsionnymi materialami. Vestn. Polots. gos. un-ta. Ser. F, Str-vo. Prikladnye nauki, (12), 70–80. (In Russ.).
Lazovskii, D.N., Leonovich, S.N., Glukhov, D.O., Lazovskii, E.D. (2023). Modelirovanie napryazhenno-deformirovannogo sostoyaniya izgibaemykh zhelezobetonnykh elementov, usilennykh v rastyanutoi zone vneshnim armirovaniem kompozitnymi materialami pod nagruzkoi [Modeling of the stress-strain state of bending reinforced concrete elements reinforced in a tensioned zone by external reinforcement with composite materials under load]. Vestn. Brestskogo gos. tekhn. un-ta [Vestnik of Brest State Technical University], 2(131), 9–19. (In Russ., abstr. in Engl.). DOI: 10.36773/1818-1112-2023-131-2-9-19.