木造住宅用耐震補強技術の費用対効果に関する試算

概要

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This paper describes a case study of cost-effectiveness of seismic retrofit measurement for vulnerable wood houses. To examine the cost-effectiveness of seismic retrofit measurement, the life cycle costs for five houses having different seismic performance and being located on five different areas are compared. These seismic performances are defined from the results of full-scale shaking table tests including collapse tests and static loading test on the site, and time history analyses were conducted to compute damage cost. The field survey also was conducted to evaluate the relationship between damage and rehabilitation. As the result of analyses, there are quite big differences in seismic zone. For example in Shizuoka where is high probability of severe earthquake seismic performance assessment score of 1.5 is the most cost-effectiveness, but then in Tokyo seismic performance assessment score of 0.3 which means no reinforcement of vulnerable wood house is the most cost effectiveness in next 20 year. When calculating the effective cost in next 20 year all area, it is estimated half of the current amount.
社団法人日本建築学会の論文
2009-03-30