A. Aiello, M. Pecce, Sarno Luigi Di
Seismic vulnerability assessment is of paramount importance for existing critical structures, e. g. health care centers and hospital buildings. Numerous surveys carried out in the aftermath of recent earthquakes have shown that the performance of hospitals is not impaired by the structural damage; functional breakdowns are instead major threats. Nonstructural components in buildings are rarely designed with the same care or with the same degree of scrutiny used for structural elements. In the present paper a checking/recording document is proposed, including the vulnerability of nonstructural elements and medical equipment; the overall seismic vulnerability is then estimated by a vulnerability index referred to both the functional and structural parts of the buildings. The simplified methodology, developed on the basis of studies carried out by Pan American Health Organization (PAHO) and World Health Organization (WHO), finally provides a safety index as function of all the parameters that characterize the seismic risk: vulnerability, hazard and exposition.