Hierarchical spatial distribution of seismic risk of Italian RC buildings stock

Abstract

Due to both the huge amount of strategic and residential buildings that require interventions and limited economic availability, the definition of mitigation strategies based on retrofit priority intervention are a fundamental step. Interventions priority ranking based on concept of seismic risk should be defined. They should be able to address the economic resources by the areas more seismic risky to less ones. In this work, an effective hierarchical spatial distribution of seismic risk of Italian RC buildings stock has been defined based on a spatial georeferencing of Italian seismic hazard, vulnerability, building types exposure, and the employment of Analytical Hierarchical Method. Moreover, a novel and reliable definition of seismic risk index has been employed in building type characterization.