都市直下地震を想定した入力地震動の考え方と地域防災計画への指針 : 震源パラメータの不確定性がもたらす地震動入力及び被害評価への影響

概要

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Near field earthquakes bring catastrophic disasters in large urbanized cities. Local governments must prepare the regional mitigation plans on the basis of seismic hazard and risk estimation in order to proted the building environment and the population. In case of Sapporo City, that is our research target, it is difficult to specify the source parameters of near field earthquakes affected the populated area. It is necessary to investigate the influence of indefinite parameters upon the risk assessment. In this paper, we enforce an importance of the plural estimation of seismic damages by probable earthquakes occurring near the urban area. Paying attention to the difficulties of taking measures against all of the cases on estimated damages, we give an example of the rule of making decision about the priority of mitigation plans from the point of view of earthquake engineering and political science.
社団法人日本建築学会の論文
2000-04-30