2026, Vol. 13, No. 2. - go to content...

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DOI: 10.15862/09SATS226 (https://doi.org/10.15862/09SATS226)

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Mikhailova O.V., Zolotov V.M., Kozak N.V., Syrkov A.V. Modern methods of strengthening of reinforced concrete superstructures of road bridges. Russian Journal of Transport Engineering. 2026; 13(2). Available at: https://t-s.today/PDF/09SATS226.pdf (in Russian). DOI: 10.15862/09SATS226

Modern methods of strengthening of reinforced concrete superstructures of road bridges

Mikhailova Olga Vadimovna
Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
E-mail: olya.mikhailovaaa@yandex.ru
ORCID: https://orcid.org/0009-0001-9773-5497

Zolotov Vyacheslav Mikhaylovich
Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
E-mail: slavazol@bk.ru
ORCID: https://orcid.org/0009-0006-9629-7268

Kozak Nikolai Viktorovich
Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
E-mail: kozak.spbgasu@gmail.com
ORCID: https://orcid.org/0000-0002-7707-4388
RSCI: https://elibrary.ru/author_profile.asp?id=1018546
ResearchGate: https://www.researchgate.net/profile/Nikolai-Kozak-2
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=57207108767

Syrkov Anton Vladimirovich
Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
E-mail: syrkov-anton@mail.ru
ORCID: https://orcid.org/0009-0005-3178-6805
ResearchGate: https://www.researchgate.net/profile/Anton-Syrkov

Abstract. Currently, a large number of bridges and overpasses made of reinforced concrete and prestressed reinforced concrete are in operation on public roads, whose consumer characteristics do not meet the requirements of current regulatory documentation due to their moral and physical deterioration. The key factor determining the safe operation of a bridge structure is its load capacity. For these reasons, strengthening the main load-bearing structures of bridge structures is an extremely urgent problem. Complete replacement of the main beams is not always rational due to the high cost of carrying out such major repairs, the complexity and cost of dismantling structures and the prolonged closure of the structure for traffic.

In this research paper, the authors consider the main modern methods of reinforcing reinforced concrete bridges and overpasses with main beams of T-shaped, I-beam, plate and box sections and the existing development trends in this area. An overview of domestic and foreign literature on the topic of strengthening existing road reinforced concrete bridge structures is given. In addition, the authors have compiled a classification of methods for strengthening superstructures of bridges and overpasses made of reinforced concrete and prestressed reinforced concrete, depending on the materials used, the technological features of major repairs to strengthen the reinforced concrete main beams of the superstructure, as well as the impact of the methods used on the integrity of the main load-bearing structures. The result of this work is a review and comparison of various existing approaches to reinforcing reinforced concrete road bridges, as well as their systematization, which makes it possible to simplify and expand the range of searching for the most effective reinforcement method suitable for the given conditions and task.

Keywords: reinforced concrete superstructure; reinforcement of superstructures; reinforced concrete girder; bridge reinforcement; reinforced concrete; bridge structures; repair

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