RENOVATION PROGRAM OF WEAK WATER SUPPLY PIPELINE CONSIDERING LIFE-SAVING LIFELINE OF HOSPITALS

Abstract

The present paper proposes a seismic risk management method for water supply pipelines to hospitals by cost-benefit analysis. The renovation program of water pipeline has a purpose to improve the pipeline itself and serviceability of hospitals. The proposed method can evaluate the fragility of building and lifeline facilities inside hospitals, and can account seismic risk for emergency supply to hospitals as well as that for water outage in surrounding areas. Also the method was applied to water supply systems distributing water to important hospitals, and it showed to be able to evaluate quantitative risk and validity of the method to chose vulnerable pipe segment in priority.