掲載雑誌（和）： 日本地震工学シンポジウム講演集 Vol： 6巻 年： 1982年 頁： 2089-2096頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Charles Scawthorn, Osamu Aketa タイトル（英）： OPTIMUM SEISMIC DESIGN OF JAPANESE LOW-RISE BUILDINGS 抄録（英）：
Utilizing past research findings on Japanese low-rise building seismic performance functions, this paper presents the results of studies of optimized and satisficed seismic design levels for low rise buildings for three soil classes, using as a ease study area Osaka, Japan. Optimum design level is determined by total cost minimization which, however, is a poor determinant due to the "flatness" of the total cost curve (a well-known phenomenon). Thus, the concept of 'satisficing' was utilized. Specifically, for this study, the total cost curve tangent vas reduced to a specified fraction of its initial value - a satisficing criteron which vas quite useful and which could have wide application. The resulting optimum and/or satisficed design levels are seen to depend on soil class and assumptions resarding secondary loss levels and discount rate. For Osaka, if all low-rise buildings were thus satisficed, the resulting per annum savings in damagg would amount to about 52％ (I.e., present expected 52％ damage of ■ x ■ reduced to ■ 77 x ■ ) with total cost savings of about 2.5％. The design levels, both existing and optimum, in Japan are among the highest in the world, so that these results are useful information in the determination of optimum and/or satisficing design levels for other regions. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集