Empirical fragility curves from damage data on RC buildings after the 2009 L’Aquila earthquake

摘要: The study analyses the data related to a database of 7597 private Reinforced Concrete buildings located in city and province L’Aquila surveyed after 2009 earthquake. Survey were collected by Italian Department Civil Protection during post-earthquake usability inspections including information on building characteristics, level extent damage structural non-structural components. For each building, Peak Ground Acceleration demand has been determined according available from ShakeMap event georeferenced location. analysis highlights key role played components—namely, infills partitions. Damage Grades European Macroseismic Scale EMS-98 have derived single Two classes defined order investigate influence number storeys observed damage. Probability Matrices for assumed bins Acceleration, trends are analyzed. Different methodologies estimating fragility functions illustrated, discussed applied database, leading derivation EMS-98-based curves classes. Finally, proposed compared with main empirical RC literature studies.