A PROCEDURE FOR THE PROBABILISTIC ASSESSMENT OF MASONRY STRUCTURES UNDER TSUNAMI

Abstract

Assessment of Tsunami vulnerability of coastal buildings has gained high interest in the last years for the areas characterized by a high Tsunami hazard. A probabilistic representation of vulnerability is performed by fragility curves, fundamental tools to define possible strategies for risk mitigation. Different prediction approaches can be used for obtaining analytical fragility curves. In this paper, a prediction proposal to be used for masonry structures typical of the Mediterranean coasts based on simplified structural analyses and damage indexes is presented. Different damage states are considered and inundation depth is assumed as input intensity measure. The uncertainties in the demand by the definition of the probability distribution of the inundation scenarios are considered. Further, the uncertainties in the structural capacity are included. Monte Carlo simulations are performed for the scope of this work.