Empirical fragility curves for Italian URM buildings

摘要: This paper illustrates the derivation of an empirical fragility model for residential unreinforced masonry (URM) buildings, calibrated on Italian post-earthquake damage data and compatible with key features national seismic risk platform. Seismic vulnerability is described by functions three classes, then refined based building height. To this aim, a clustering strategy implemented to merge predefined typologies into similarity observed fragility. On other side, specific procedure built up determine composition exposed URM stock, starting from census data. The empirically-derived was platform used, together models, assessing in Italy. results presented paper, consisting typological curves can be also exploited estimating both expected sites similar hazard inventory.