Article

Received 17.01.2025

Revised 25.05.2025

Accepted 24.06.2025

Retrieved from Iss. 117, P. 2, 2025

Pages 31 -40

Aksonov, S., & Minyukova, A. (2025). RESEARCH OF THE TECHNICAL CONDITION OF REINFORCED CONCRETE SPAN STRUCTURES OF ROAD BRIDGES IN UKRAINE. Automobile Roads and Road Construction, (117.2), 31-40. https://doi.org/10.33744/0365-8171-2025-117.2-031-040

RESEARCH OF THE TECHNICAL CONDITION OF REINFORCED CONCRETE SPAN STRUCTURES OF ROAD BRIDGES IN UKRAINE

Sergii Aksonov Anna Minyukova

The article is dedicated to analyzing the technical condition of reinforced concrete superstructures of road bridges in Ukraine, identifying key degradation factors, and substantiating the necessity of strengthening measures to improve their durability and reliability. The study highlights the growing problem of aging bridge infrastructure, focusing on corrosion, fatigue damage, and material wear as primary causes of structural deterioration. Particular attention is given to the consequences of exceeding the design service life and the associated risks for traffic safety. To conduct a comprehensive analysis of the current state of reinforced concrete superstructures of road bridges in Ukraine, determine the main degradation factors, and justify the necessity of strengthening superstructure elements to enhance their durability and reliability. The research is based on the analysis of statistical data on bridge conditions, case studies of structural failures, and theoretical modeling of degradation processes. Particular emphasis is placed on the impact of corrosion on reinforcement, fatigue-induced cracks, and load-bearing capacity reduction. Advanced diagnostic techniques, including non-destructive testing and computational simulations, are considered to assess structural integrity accurately. The study establishes that a significant proportion of reinforced concrete superstructures requires urgent strengthening due to critical loss of load-bearing capacity. It is revealed that many bridges, built in the mid-20th century, no longer meet modern operational and safety requirements. The findings indicate that fatigue damage and stress accumulation in structural elements are not sufficiently studied, necessitating further research into failure mechanisms. The analysis suggests that implementing innovative reinforcement techniques, such as external adaptive tensioning, could significantly extend the service life of aging bridge structures. Addressing the problem of aging reinforced concrete superstructures is crucial for ensuring road safety and prolonging the operational lifespan of bridges. The study underscores the importance of timely strengthening interventions, considering modern material technologies and advanced structural monitoring methods. Further research into fatigue properties and degradation mechanisms will provide valuable insights for developing effective rehabilitation strategies

Reinforced concrete superstructures, structural durability, fatigue damage, service life, technical condition
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https://doi.org/10.33744/0365-8171-2025-117.2-031-040