社会的に要求される耐震安全性レベルの確率論的評価 : ユーザーの要望をふまえた性能設計の構築に向けて

書誌事項

タイトル別名
  • PROBABILISTIC EVALUATION OF TARGET EARTHQUAKE-RESISTANT LEVEL DERIVED FROM REQUIREMENTS OF USERS : For better indication of performance reflecting user's needs
  • シャカイテキ ニ ヨウキュウ サレル タイシン アンゼンセイ レベル ノ カクリツロンテキ ヒョウカ ユーザー ノ ヨウボウ オ フマエタ セイノウ セッケイ ノ コウチク ニ ムケテ

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説明

Many methods have been developed to evaluate the earthquake-resistant performance of buildings, however, we have no adequate method to communicate with users directly on target earthquake-resistant level in layman's language. In future designers will need to communicate more with users regarding target levels of building performance. This is because structural safety performance is particularly important, and many users will require a performance indication and guarantee of their own house. Therefore, the target earthquake-resistant level must be clarified quantitatively as soon as possible, based on user's needs. However, professional designers have never had a clear grasp of users' requirement as an indication of safety level. This paper tries to evaluate probabilistically a desirable target earthquake-resistant level from user questionnaires using a structural reliability theory. Many users do not have an exact understanding of current earthquake-resistant levels in Japan when the safety index is expressed by seismic intensity. They do not clearly understand their responsibility for the result of their choice of safety levels. Nevertheless, we should have a grasp of users' requirement quantitatively for future. The results of this study show how users' requirement levels can be indicated as a reliability index.

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