Introduction. The article considers the fundamental problem of ensuring the durability of highway bridges under aggressive chloride action. The operational reliability of transport structures is largely determined by the condition of reinforced concrete structures exposed to de-icing agents and cyclic wetting.
Problem Statement. Chloride-induced corrosion of reinforcement is one of the most dangerous degradation factors, leading to a loss of load-bearing capacity and premature failure of bridges. The existing regulatory framework of Ukraine only partially accounts for these processes, necessitating harmonization with international standards.
Objective. Analysis of the causes of deterioration of the technical condition of bridge structures with typical span structures and identification of key factors of operational degradation.
Materials and Methods. The analysis uses the results of instrumental and visual inspections of bridges on public roads in different regions of Ukraine, the AESUM database, and state standards and regulatory documents in force in Ukraine.
Results. The results obtained were analyzed, characteristic defects were recorded, and recommendations were provided to ensure the effective and safe operation of structures.
Conclusions. The results obtained allow us to consider the degradation of VTP-21 span structures as a single operational process and to determine priority measures for the maintenance of bridge structures.
