Development of parametric seismic fragility curves for historical churches

Abstract For both spiritual and cultural reasons, churches are an essential part of the historical heritage several countries worldwide, including Europe, Americas Australasia. The extreme damage that occurred during 2016–2017 Central Italy seismic swarm highlighted once again noteworthy vulnerability unreinforced masonry churches, which exhibited collapses caused uncountable losses to Italian artistic heritage. performance 158 affected buildings was analyzed in aftermath main shocks. failure modes activated by earthquakes were identified making reference local mechanisms currently considered for post-seismic assessment churches. structural investigated buildings, related 21 rather than overall global response, explained resorting empirical statistical procedures taking into account ground motion intensity details can worsen or improve performance. Finally, parametric fragility curves derived selecting those mostly influence means likelihood-ratio test. Developed models be used future territorial-scale scenario risk analyses.