Loss Analysis of Medical Functionality Due to Hospital's Earthquake-Induced Damages

Abstract eng:
In recent years the concept of Performance-based design and assessment requires the performance targets being expressed in a more direct way so that users can understand the seismic risk easily. For a hospital, medical functionality (MF) is the most concerned performance target after an earthquake. This study focuses on the loss analysis of MF due to damages of nonstructural components (NSCs). First, damage levels of MF are defined into four levels from the viewpoint of casualty triage. Then, the impacts on loss of medical functionality by damages of NSCs are investigated based on a questionnaire survey on the 2004 Mid Niigata prefecture earthquake, Japan. Furthermore, a supplementary questionnaire survey is conducted to assess the influence of clutter by using the AHP method, which is a conventional method for analyzing decision- making problems. The results of loss analysis in this study can be connected to seismic fragilities of critical NSCs, so that given a seismic intensity, such as PGA, the performance of post-earthquake medical functionality can be provided to hospitals and concerned authorities.

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