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Currently, most types of bridges on highways are reinforced concrete structures made with both conventional and prestressed reinforcement. Reinforced concrete bridges are affected by many negative factors that lead to degradation of material properties and loss of bearing capacity of superstructures. This requires rebuilding or strengthening bridges. Strengthening is a tool to extend the life cycle of building structures such as bridges. Existing studies focused on strengthening issues are aimed at maximizing this period, which is why the proposed solutions are long in time and difficult in terms of labor intensity. The purpose of this article is to propose and justify rapid methods for strengthening reinforced concrete bridges and overpasses as the most massive types of bridges. As a result, two main types of strengthening are proposed: rolling profile elements and bracing systems. And one and the second type are calculated justified, which is given in the article. In addition, the main schemes developed by the author are given. It has been determined that the proposed methods are very effective, and can be used in emergency situations or other cases that require minimizing the work time while increasing the load-bearing capacity.

  • Web Address
  • DOI
  • Date of creation in the UzSCI system 22-04-2024
  • Read count 38
  • Date of publication 30-09-2023
  • Main LanguageIngliz
  • Pages14-26
English

Currently, most types of bridges on highways are reinforced concrete structures made with both conventional and prestressed reinforcement. Reinforced concrete bridges are affected by many negative factors that lead to degradation of material properties and loss of bearing capacity of superstructures. This requires rebuilding or strengthening bridges. Strengthening is a tool to extend the life cycle of building structures such as bridges. Existing studies focused on strengthening issues are aimed at maximizing this period, which is why the proposed solutions are long in time and difficult in terms of labor intensity. The purpose of this article is to propose and justify rapid methods for strengthening reinforced concrete bridges and overpasses as the most massive types of bridges. As a result, two main types of strengthening are proposed: rolling profile elements and bracing systems. And one and the second type are calculated justified, which is given in the article. In addition, the main schemes developed by the author are given. It has been determined that the proposed methods are very effective, and can be used in emergency situations or other cases that require minimizing the work time while increasing the load-bearing capacity.

№ Author name position Name of organisation
1 Andrei B.. PhD, associate professor St. Petersburg Polytechnic University of Peter the Great
№ Name of reference
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