Corrosion impact analysis: a numerical model for reinforced concrete structures using the Finite Element Method based on Position

Resumo

Reinforced concrete (RC) structures face environmental challenges like carbonation and chloride ingress, leading to decreased stiffness, serviceability, and security. A key issue is accurately simulating structural responses to environmental effects and their impacts. This article addresses this by proposing a numerical model based on the Finite Element Method with Positions (FEMP), employing frame elements to forecast post-corrosion structural behavior. Subsequently, a probabilistic study is conducted using Monte Carlo simulations to predict failure probabilities amidst changing environmental conditions. The study reveals corrosion's significant impact on structural stiffness and a high probability of failure within 50 years. These findings underscore the necessity of constructing structures with future climate change challenges in mind.