Bonding of corrosion-damaged reinforced concrete elements in case of fire impact
https://doi.org/10.33979/2073-7416-2025-117-1-40-47
Abstract
This paper examines the bond strength between reinforcement and concrete in reinforced concrete structures under combined effects of corrosion and high temperatures. The analysis employs analytical models and regulatory data to evaluate changes in the strength characteristics of reinforcement and concrete under elevated temperatures and corrosion damage. Thermal and corrosion effects influencing bond strength reduction, material strength degradation, and internal stresses due to differences in thermal expansion coefficients of steel and concrete were taken into account. Results indicate that under high temperatures and significant corrosion levels, bond strength between reinforcement and concrete decreases considerably. The presented models and calculation dependencies allow for a preliminary assessment of the reliability and fire resistance of reinforced concrete structures under corrosion conditions.
About the Authors
A. G. Tamrazyan
Federal State Budgetary Educational Institution of Higher Education "National Research Moscow State University of Civil Engineering" (NRU MGSU)
Russian Federation
Russian Federation
Tamrazyan Ashot Georgievich, Doctor in tech. sc., Prof, Head of the Department of Reinforced Concrete and Masonry Structures
Moscow
D. S. Baryak
Federal State Budgetary Educational Institution of Higher Education "National Research Moscow State University of Civil Engineering" (NRU MGSU)
Russian Federation
Russian Federation
Baryak Dmitry Sergeevich, Postgraduate student of the Department of Reinforced Concrete and Masonry Structures
Moscow
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Review
For citations:
Tamrazyan A.G., Baryak D.S. Bonding of corrosion-damaged reinforced concrete elements in case of fire impact. Building and Reconstruction. 2025;1(1):40-47. (In Russ.) https://doi.org/10.33979/2073-7416-2025-117-1-40-47
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