Abstract
An approach to evaluate the structural reliability taking into account the degradation of the structural capacity due to corrosion of reinforced concrete buildings at the end of a time interval is proposed. The structural reliability is expressed in terms of the confidence factor, within a Demand and Capacity Factor Design format (DCFD). A new closed-form mathematical expression that considers the non-linear structural capacity degradation due to corrosion by means of a second degree polynomial function is developed. The confidence factors are obtained under the assumption that the structural capacity degradation due to corrosion follows a linear and non-linear function over a time interval. The structural reliability is obtained for a three-story reinforced concrete building subjected to two sets of real seismic ground motions recorded in Acapulco Bay Mexico. Both, aleatory and epistemic uncertainties are taken into account into the analysis. A maximum difference of 3.5% between both functions after 83 years from the construction of the building was found.
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Tolentino, D., Carrillo-Bueno, C.A. Evaluation of Structural Reliability for Reinforced Concrete Buildings Considering the Effect of Corrosion. KSCE J Civ Eng 22, 1344–1353 (2018). https://doi.org/10.1007/s12205-017-1650-2
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DOI: https://doi.org/10.1007/s12205-017-1650-2