戸建て免震住宅の地震リスクアナリシスに基づく性能評価

概要

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Seismic resistant performance of ordinary non-isolated two-story wooden houses and the corresponding isolated houses are evaluated based on a seismic risk analysis. First, numerical models of houses with several different seismic design grades considering nonstructural elements are set up. The structural characteristics of these houses are evaluated based on static experiments as well as using a shaking table test. Second, time history response analysis is carried out to evaluate response characteristics and seismic resistance capacity subjected to different intensities, followed by a study of relationships between the maximum response values and a peak ground velocity (PGV), and their seismic fragility curves are calculated. Third, the seismic annual expected losses are calculated using event tree modeling and. Finally, the each performance of the base isolated and the non-isolated house is evaluated based on Life Circle Cost study.
2008-03-25