Estrategias para la inspección óptima de estructuras de hormigón armado sujetas a corrosión

Abstract

Much of the reinforced concrete structures were built in the first half of the 20th century, so their service life is currently at a critical stage from a maintenance perspective. One of the mechanisms more frequent and costly degradation in this type of infrastructure is associated with reinforcement corrosion induced by the phenomenon of carbonation. In this context, the objective of this article was the formulation of a Decision-making model for optimal inspection planning. The inspection times were optimized considering the uncertainty inherent in the degradation process and a trade-off between the costs of inspection and serviceability of the structure. An efficiency analysis has been developed through two approaches: Stochastic Frontier Analysis and Multidirectional Envelope Analysis. This analysis provides an assessment that reduces the number of inspection techniques required and the time interval between inspections to provide not only an optimal solution, but also a more efficient one. Thus, the result of this research It comprises a numerical model to obtain the most adequate inspection times during the useful life of the structure.