This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
California State University Long Beach , Long Beach , United States
Current seismic building codes aim to protect life safety by allowing controlled damage to lateral-load-resisting systems. Although this approach prevents collapse, buildings may remain unusable and impose significant consequences on communities and infrastructure. Resilience-based seismic design seeks to reduce these impacts, yet challenges remain in its practical application. This study examines one such challenge—the selection and availability of appropriate component fragility functions—through assessment of a modern 30-story reinforced-concrete core-wall building. Two models subjected to identical seismic demands are compared: a FEMA P-58 model using the closest available fragilities and a Custom model using component-specific fragilities derived from representative experimental data. Damage predictions are propagated through the F-Rec framework to evaluate functionality and recovery. Results demonstrate that practical application of existing resilience-assessment frameworks depends critically on the availability of reliable and appropriate component fragility functions.
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