| Summary: | 碩士 === 國立成功大學 === 建築學系碩博士班 === 98 === From the Chi-Chi earthquake and many severe seismic events abroad, we’ve learned that the public buildings played important roles in post-disaster rescues. For example, hospitals and school buildings provided medical treatment for the injuries and the emergent shelters for the local residents, respectively.
For hospital buildings, they could be seriously damaged but should never be collapsed under severe earthquakes; therefore, the structures of the hospital buildings usually did not lose their bearing capacity after earthquakes. However, the damage to the operational and functional components (OFCs) in the hospitals would lead to a more critical situation than did structural damages. Due to damaged OFCs in hospitals, not only the patients affected, but also the treatment for the emergency cases impeded. Thus, instead of only aiming at the structural safety of the hospitals, the seismic capacity of the OFCs should be seriously considered to maintain their post-earthquake emergent medical capability. For school buildings, this paper focuses only on investigating the OFCs which are needed in maintaining the basic function for young students in schools and providing the emergent shelters for the local residents after earthquakes. Hence, this study investigated the damaged OFCs in hospitals and in school buildings during the 921 Chi-Chi earthquake in 1999 and the 304 Jia-Sian earthquake in 2010, respectively. By using questionnaire, the damages to OFCs were surveyed and their repair cost probability curves were analyzed.
The damage levels of OFCs in the questionnaire were first classified into no, minor, moderate, and severe damages. Then the algorithms of the log normal distribution curve fitting were used to plot their corresponding repair cost probability curves. This concept was based on the fragility curve and using the PGA as the independent variable.
From the repair cost probability curves of OFCs, we can predict and evaluate the probability of repair cost of OFCs under a certain PGA either in the design or post- earthquakes stage. The building owners can therefore consider the seismic capacity of the OFCs, their seismic loss probability and the corresponding repair cost.
|
|---|
