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Abstract
This research aims to establish a new methodology for defining building functionality and resilience under successive damage-retrofit processes during recovery. Resilience is the ability of systems to rebound after severe disasters. It mainly depends on the performance of the building under the different mainshock and aftershock scenarios, the recovery process, and recovery time. Considering different scenarios of mainshock and aftershock (time of occurrence, intensity, etc.) and the parameters that affect the recovery process, calculating seismic resilience has many uncertainties. The methodology is proposed using the performance-based earthquake engineering approach (PBEE) and probabilistic methods to consider the uncertainties. The main objective of the proposed methodology is to provide a practical approach to evaluating the impact of aftershocks on the performance of damaged buildings that are partially restored after a mainshock occurrence. A probabilistic recovery model is proposed to compute the recovery path. Two case studies are performed to illustrate the applicability of the methodology. Reinforced concrete buildings with 3 and 6 stories are considered, while their functionality and seismic resilience are calculated under an assumed mainshock-aftershock scenario. The findings of this work may be used to estimate the resilience of damaged buildings to have resilient communities and buildings.