Publications

Steel corrosion in reinforced concrete structures can lead to severe deterioration damage under static and seismic loads. In practice, it is essential to mitigate failure risk by quantifying the extent of damage and simulating the structural response of damaged structures. However, numerical modeling of the dynamic behavior of corroded structure is challenging due to high nonlinearity of the problem and its multidisciplinary nature. In addition, corrosion damage exhibits various sources of uncertainty that impede accurate deterministic modeling of the dynamic response of RC structures. Therefore, this study presents a simplified framework, to simulate the non-linear response of corroded structures under seismic excitation, in a statistical setting. The presented scheme employs set of state-of-art experiments and numerical investigations of corrosion effect and response to capture the generic non-linear response. The presented scheme is utilized to conduct reliability analysis for corroded structures under earthquake loads by incorporating different sources of uncertainties associated with the used mathematical models and model parameters. The power of the suggested probabilistic scheme is illustrated on two simulated structures, where two different statistical properties are considered; the initial statistical parameters and a real-time monitored statistic for the rate of corrosion.