Post-earthquake seismic residual capacity and economic loss assessment of reinforced concrete buildings

This research work investigates the residual capacity of earthquake-damaged buildings, aiming to support their safety evaluation and loss assessment in practical application. A case-study reinforced concrete building is analysed, evaluating pre-and post-earthquake collapse risk and economic loss considering different damage levels. Specifically, a pushover-based methodology is adopted to assess the seismic performance of the damaged building, based on the use of capacity reduction factors for damaged structural members. Results highlight that both higher seismic risk and economic losses can be expected when cumulative damage is considered. This output could support decisions on the post-earthquake repair/retrofit/demolition.