Corrosion phenomena affect the structural response of existing reinforced concrete (RC) structures because reduce the strength and ductility of steel and surrounding concrete thus altering the collapse mechanism of the overall RC structure. This contribution addresses the cyclic behavior prediction of corroded RC columns through a fiber hinge model. Experimental cyclic tests of corroded RC columns from the literature are numerically simulated by adopting appropriate stress-strain laws for cover concrete, uneffective/effective concrete, and corroded steel rebars at the fiber level. The proposed model, here validated for single corroded RC columns, lends itself to implementation for analysis of more general RC corroded structures.
Cyclic behavior prediction of corroded reinforced concrete columns through a fiber hinge model
De Domenico D.
;Messina D.;Recupero A.
2021-01-01
Abstract
Corrosion phenomena affect the structural response of existing reinforced concrete (RC) structures because reduce the strength and ductility of steel and surrounding concrete thus altering the collapse mechanism of the overall RC structure. This contribution addresses the cyclic behavior prediction of corroded RC columns through a fiber hinge model. Experimental cyclic tests of corroded RC columns from the literature are numerically simulated by adopting appropriate stress-strain laws for cover concrete, uneffective/effective concrete, and corroded steel rebars at the fiber level. The proposed model, here validated for single corroded RC columns, lends itself to implementation for analysis of more general RC corroded structures.Pubblicazioni consigliate
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