ABSTRACT
Past literature on resilience evaluation remains predominantly deterministic, with only few studies considering uncertainties associated with seismic resilience. The present study provides a framework to evaluate the seismic resilience of non-seismically designed bridges, considering uncertainties related to corrosion deterioration, functionality loss, and recovery time. A detailed experimentally validated three-dimensional finite element model of the bridge is developed by considering nonlinear behavior and corrosion deterioration effects. Nonlinear time history analyses are conducted using a suite of region-specific ground motions to develop seismic fragility curves. The results obtained from the fragility analysis are used to estimate functionality and resilience. A comprehensive uncertainty analysis is conducted using random sampling and Monte Carlo simulation techniques to determine the variation in seismic resilience. Corrosion deterioration and increasing intensity measures lead to increased uncertainty in resilience. The research findings highlight the importance of considering the different sources of uncertainty in seismic resilience assessment of deteriorating bridges.
