ABSTRACT
The topic addressed in this paper is the search for a quick method of evaluating the seismic behaviour of masonry buildings that can be easily extended to portions of historical buildings. The proposed method is the extension to the probabilistic field of the evaluation of safety factors already present in the literature. The method applied to the proposed case study shows how the fragility curves describing the variation of the safety factors with the variation of the expected accelerations could be a useful support tool in the planning of safeguard interventions and how they are able to show, in probabilistic terms, the possible impact of seismic improvement interventions on the expected structural response.
