[2014] Maintenance and Repair Scheme for Corroded Stiffened Steel Box Girder Bridges based on Ultimate Strength Reliability and Risk Assessments > Selected Papers

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[2014] Maintenance and Repair Scheme for Corroded Stiffened Steel Box …

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Maintenance and Repair Scheme for Corroded Stiffened Steel Box Girder Bridges based on Ultimate Strength Reliability and Risk Assessments

Author(s): Yasser SHARIFI, Jeom Kee PAIK

Abstract: 
The aims of this study are to investigate the effect of corrosion on the load-carrying capacity of stiffened steel box girder bridges and to formulate a repair schedule using reliability-based approaches for such bridges as they age. A credible scenario for a corroded steel box section is estimated. Corrosion rates and their probabilistic characterization are calculated based on the available data. A probabilistic model of ultimate box girder strength is established based on an analytical formula that considers corrosion-related time-dependent strength degradation. The results generated with this model may be useful in the development
of an optimized and accurate maintenance and repair schedule for existing steel box girder bridges.

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