Within the scope of capacity assessment of corroded structures, Model Code 2020 provides a model for the evaluation of shear resistance of corroded reinforced concrete (RC) members. The verification of these provisions is carried out here against a database selected from laboratory tests on slender beams with shear failure. The corrosion in the tests includes both localized and generalized attacks. Most tests used accelerated corrosion; the model results are also compared to those obtained for the very few natural corrosion tests available. The formulation is discussed and the application shown. The results show a varying performance, depending on the corrosion attack. The causes of these results are discussed. The application of the model for in situ conditions is discussed. Conclusions are drawn on the applications and needed future research.
Shear resistance of corroded reinforced concrete beams in Model Code 2020
D. Coronelli
2025-01-01
Abstract
Within the scope of capacity assessment of corroded structures, Model Code 2020 provides a model for the evaluation of shear resistance of corroded reinforced concrete (RC) members. The verification of these provisions is carried out here against a database selected from laboratory tests on slender beams with shear failure. The corrosion in the tests includes both localized and generalized attacks. Most tests used accelerated corrosion; the model results are also compared to those obtained for the very few natural corrosion tests available. The formulation is discussed and the application shown. The results show a varying performance, depending on the corrosion attack. The causes of these results are discussed. The application of the model for in situ conditions is discussed. Conclusions are drawn on the applications and needed future research.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
