Influence of Redistribution of Moments on the Load-Bearing Capacity of Bending Reinforced Concrete Elements in Case of Damage to the Pressured Reinforcement due to Corrosion
https://doi.org/10.22227/2949-1622.2025.4.5-17
Abstract
One of the main goals in building construction is to design future reinforced concrete structures that are resistant to unexpected loads. In other words, the structure must be designed to operate reliably and safely. Two key reliability assessment criteria are the ductility of the structure and the “cracking before failure” principle. Known cases of corrosion damage to prestressed concrete are considered. It is proposed to determine the residual load-bearing capacity and safety factor of the cross-section of a prestressed concrete beam using the area of residual prestressed reinforcement due to corrosion damage. Two cases of moment redistribution are considered: from span to support, when the loss occurs in the span, and from support to span, when the loss occurs at the support. To ensure the strength of reinforced concrete beams for statically determinate and indeterminate systems, it is proposed to determine the minimum reinforcement based on their ability to plastically rotate upon loss of prestressed reinforcement.
About the Author
A. G. Tamrazyan
Moscow State University of Civil Engineering (National Research University) (MGSU)
Россия
Россия
Ashot G. Tamrazyan, Corresponding Member of RAACS, Doctor of Technical Sciences, Professor, Head of Department of Reinforced Concrete and Masonry Structures
26 Yaroslavskoe shosse, Moscow, 129337
Scopus: 55975413900, ResearcherID: T-1253-2017
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Review
For citations:
Tamrazyan A.G. Influence of Redistribution of Moments on the Load-Bearing Capacity of Bending Reinforced Concrete Elements in Case of Damage to the Pressured Reinforcement due to Corrosion. Reinforced concrete structures. 2025;12(4):5-17. (In Russ.) https://doi.org/10.22227/2949-1622.2025.4.5-17
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