Prediction of Nonlinear Flexural Behavior of Continuous RC Beams Pre-Damaged by Corrosion
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Description
Numerical simulation models capable of predicting the nonlinear flexural behavior of continuous reinforced concrete (RC) beams with corroded reinforcement were developed. Laboratory tests were conducted to validate predictions of the numerical models. A parametric study was carried out to examine the effect of varying the location and severity of corrosion on the nonlinear flexural behavior of continuous RC beams. The load capacity of continuous RC beams decreased linearly with an increase in the severity of corrosion, regardless of its location. The corrosion of reinforcement in the sagging region was, however, more detrimental to the load capacity than hogging corrosion. The rate of the strength reduction for the beam models with sagging corrosion was approximately 70% higher than that of the models with hogging corrosion. The beam models with sagging and hogging corrosion concurrently exhibited the poorest performance. The rate of the strength reduction of the beam models with corrosion in both sagging and hogging regions was approximately 2.7 times that of the models with hogging corrosion only. The moment redistribution ratio at the ultimate load for the beam models with sagging corrosion only ranged from 2–22%. The beam models with corrosion in the hogging region only exhibited the highest moment redistribution ratio of 22–50% at the ultimate load. The beam models with sagging and hogging corrosion simultaneously exhibited a constant moment redistribution ratio of 18% at the ultimate load.
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ID Code: | 241757 | ||
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Item Type: | Contribution to Journal (Journal Article) | ||
Refereed: | Yes | ||
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Additional Information: | Funding: This project is funded by the United Arab Emirates University (UAEU) (grant number 12N004). | ||
Measurements or Duration: | 17 pages | ||
DOI: | 10.3390/buildings13061398 | ||
ISSN: | 2075-5309 | ||
Pure ID: | 140306659 | ||
Divisions: | Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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Copyright Owner: | 2023 The Authors | ||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
Deposited On: | 20 Jul 2023 02:52 | ||
Last Modified: | 19 Apr 2024 08:41 |
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