50. 1997年鹿児島県北西部地震を経験した建物の耐震性能(VII. 性能設計と許容リスク,第VIIセッション,第7回(平成9年度)地域安全学会研究発表会)

概要

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The seismic risk of structural damages of built environment is a key factor to assess the seismic risk of physical damages of urban cities. To assess this seismic risk, it is proposed to evaluate accurately the seismic performance of built environment and to establish a methodology to assess the seismic risk against predicted earthquakes in a more rational way. This study aims to obtain basic data for these problems. To evaluate the seismic performance of built environment in an urban city; it is proposed to reveal probabilistic distribution of seismic capacities by investigating a lot of built environment To establish a methodology to assess the seismic risk, it is effective to assess seismic capacities of built environment as a sample, which experienced damaging earthquakes and to compare the results with real damage ranks. In this study, both damaged and nondamaged buildings, which experienced the 1997 Northwestern Kagoshima-ken Earthquakes, near-field earthquakes generated in this spring, are used for the analyses.