Assessment of post-earthquake damages on Italian school building portfolios over the last 50 years

The Italian peninsula has been subjected to several destructive earthquakes over the last 50 years which denoted the high vulnerability of the existing building stock. In this context, the analysis of post-earthquake damages is of paramount importance for manifold reasons, such as the management of the emergency phase for establishing the usability of buildings and the identification of the main sources of vulnerability for future risk mitigation plans. Since about 50 years, the post-earthquake usability of buildings is assessed through simplified forms filled by experts and practitioners during extensive in-situ inspections. The data collected during the post-earthquake inspections have been recently catalogued in the Observed Damage Database (DA.D.O), which is a freely available platform for the scientific community. Starting from the data available in the DA.D.O platform, the damage reported by Italian school buildings have been analyzed in order to elaborate a proper school buildings database. The results of this statistical investigation are used for identifying the main sources of vulnerability characterizing the Italian school buildings and assuming a key role for the empirical calibration of reliable procedures of large-scale seismic risk assessment, mapping and reduction