Time-dependent prediction of the bending moment capacity of a corroding prestressed concrete bridge girder subjected to chloride ingress
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Détails bibliographiques
| Auteur(s): |
Karel Van Den Hende
(Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE)
Xander Detremmerie (Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE) Wouter Botte (Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE) Stijn Matthys (Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE) Bart De Pauw (Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE) Robby Caspeele (Department of Structural Engineering and Building Materials, Ghent University, Ghent, BE) Geert Lombaert (Civil Engineering Department, KU Leuven, Leuven, BE) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: The Essence of Structural Engineering for Society, Ghent, Belgium, 27-29 August 2025 | ||||
| Publié dans: | IABSE Congress Ghent 2025 | ||||
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| Page(s): | 2811-2817 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| DOI: | 10.2749/ghent.2025.2811 | ||||
| Abstrait: |
A large amount of existing concrete bridges has reached or soon will reach the end of their intended lifetime, requiring decisions regarding a possible lifetime extension. Based on a detailed calculation of the structural capacity, the time-dependent safety of the structure can be assessed, which can be used as performance indicator in the decision-making. This work shows a detailed methodology which combines the prediction of chloride ingress and consecutive corrosion propagation to predict the corrosion level over time with a structural assessment of the corroding structure. The methodology is applied to a real case study of a corroding prestressed concrete bride girder. It is shown that the critical section for bending failure changes due to the corrosion process and is not necessarily located at midspan. |
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| License: | Cette oeuvre ne peut être utilisée sans la permission de l'auteur ou détenteur des droits. |
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