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Experimental behavior and analytical modeling of corroded steel rebars under compression
https://orcid.org/0000-0002-4030-3052
https://orcid.org/0000-0003-0895-0804
Highlights Experimental tests on corroded steel bars under compression. Influence of corrosion and slenderness ratio of the buckling behavior. Development of simplified analytical models for the pre-peak and post-peak behavior. The results show the influence of both the phenomena of the structural response.
Abstract The durability of reinforced concrete structures can be sharply reduced by the corrosion of the steel rebars. This phenomenon is of great concern, since it is one of main cause of degradation in RC structures, almost in non-exceptional conditions. Furthermore, the corrosion effects can influence the seismic behavior, leading to dangerous strain localizations and variations of strength distribution and rotation capacity. This problem is amplified if, due to the corrosion of the reinforcement, longitudinal and/or transversal, the buckling of the steel bars takes place. Main aim of the paper is the evaluation of the influence of the corrosion on the compressive and buckling behavior of corroded steel reinforcement bars. At the scope, a comprehensive experimental survey has been planned and performed, for different values of steel bar length-to-diameter ratios and different amount of corrosion. Furthermore, based on the obtained outcomes, a simplified analytical model is developed for the definition of the constitutive relationships of corroded bars under compression.
Experimental behavior and analytical modeling of corroded steel rebars under compression
https://orcid.org/0000-0002-4030-3052
https://orcid.org/0000-0003-0895-0804
Highlights Experimental tests on corroded steel bars under compression. Influence of corrosion and slenderness ratio of the buckling behavior. Development of simplified analytical models for the pre-peak and post-peak behavior. The results show the influence of both the phenomena of the structural response.
Abstract The durability of reinforced concrete structures can be sharply reduced by the corrosion of the steel rebars. This phenomenon is of great concern, since it is one of main cause of degradation in RC structures, almost in non-exceptional conditions. Furthermore, the corrosion effects can influence the seismic behavior, leading to dangerous strain localizations and variations of strength distribution and rotation capacity. This problem is amplified if, due to the corrosion of the reinforcement, longitudinal and/or transversal, the buckling of the steel bars takes place. Main aim of the paper is the evaluation of the influence of the corrosion on the compressive and buckling behavior of corroded steel reinforcement bars. At the scope, a comprehensive experimental survey has been planned and performed, for different values of steel bar length-to-diameter ratios and different amount of corrosion. Furthermore, based on the obtained outcomes, a simplified analytical model is developed for the definition of the constitutive relationships of corroded bars under compression.
Experimental behavior and analytical modeling of corroded steel rebars under compression
https://orcid.org/0000-0002-4030-3052
https://orcid.org/0000-0003-0895-0804
Highlights Experimental tests on corroded steel bars under compression. Influence of corrosion and slenderness ratio of the buckling behavior. Development of simplified analytical models for the pre-peak and post-peak behavior. The results show the influence of both the phenomena of the structural response.
Abstract The durability of reinforced concrete structures can be sharply reduced by the corrosion of the steel rebars. This phenomenon is of great concern, since it is one of main cause of degradation in RC structures, almost in non-exceptional conditions. Furthermore, the corrosion effects can influence the seismic behavior, leading to dangerous strain localizations and variations of strength distribution and rotation capacity. This problem is amplified if, due to the corrosion of the reinforcement, longitudinal and/or transversal, the buckling of the steel bars takes place. Main aim of the paper is the evaluation of the influence of the corrosion on the compressive and buckling behavior of corroded steel reinforcement bars. At the scope, a comprehensive experimental survey has been planned and performed, for different values of steel bar length-to-diameter ratios and different amount of corrosion. Furthermore, based on the obtained outcomes, a simplified analytical model is developed for the definition of the constitutive relationships of corroded bars under compression.
Experimental behavior and analytical modeling of corroded steel rebars under compression
Imperatore, Stefania (author) / Rinaldi, Zila (author)
Construction and Building Materials ; 226 ; 126-138
2019-07-14
13 pages
Article (Journal)
Electronic Resource
English
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