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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Farid R. Shakirzyanov, Candidate of physical and mathematical sciences, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Almaz R. Shakirov, graduate student, Kazan State University of Architecture and Civil Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Alfred M. Suleymanov, Doctor of Technical Sciences, Professor, Kazan State University of Architecture and Civil Engineering, corr.-m. Academy of Sciences of the Republic of Tatarstan, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleInvestigation of a numerical model of the stress-strain state of a reinforced concrete beam strengthened with carbon fiber
Abstract.When reinforcing reinforced concrete structures with an external reinforcement system made of carbon fiber, epoxy adhesives are mainly used. The component of these systems that is most susceptible to the effects of operational factors is precisely the epoxy adhesive. To study the durability of structures reinforced with NEA, it is necessary to study the stress-strain state of the contact layer. The purpose of this work is to study a numerical model of the stress-strain state of a reinforced concrete beam reinforced with carbon fiber. Research objectives: development of a finite element model, reinforced concrete beam reinforced with carbon fiber; calculation and analysis of the results. Results. According to the results of calculations, it can be seen that concrete deformations and carbon fiber deformations are very different. Deformations on concrete are significantly greater than deformations on carbon fiber. This development of deformations indicates a displacement in the zone of the contact layer between concrete and carbon fiber. Conclusions. Finite element modeling of a reinforced concrete beam reinforced with an external reinforcement system has been carried out. As a result of the selection of various models, it was possible to develop the most suitable computational model with good convergence of the results with experimental data.
Keywords.external reinforcement, numerical calculation, reinforcement, carbon fiber, epoxy adhesive
For citations:Shakirov A. R., Shakirzyanov F. R., Suleymanov A. M. Investigation of a numerical model of the stress-strain state of a reinforced concrete beam strengthened with carbon fiber // News KSUAE, 2023, № 4(66), p.43-52, DOI: 10.52409/20731523_2023_4_43, EDN: DKATJJ


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