SEISMIC RISK ASSESSMENT OF LIFELINE CONSIDERING HOSPITAL FUNCTIONS

Under destructive earthquakes, a medical sector should play a crucial role for taking care of injured people. Hospital building should also maintain their function. By the way, since a hospital has a system like a city, composing of buildings and many lifeline systems, seismic reliability of the hospital is not determined only by building but by lifeline facilities including inside and outside the hospital. Present paper proposes a seismic risk assessment method for hospital lifeline as a part of the Seismic Risk Management method. The assessment method is to evaluate availability of hospital systems, considering damage probability of building and lifeline facilities, and the loss related to pipeline damage. The proposed method is applied to ten hospitals in Osaka, and its applicability is discussed.