掲載雑誌（和）： 日本地震工学シンポジウム講演集 Vol： 5巻 年： 1978年 頁： 33-40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）： F. K. Chang, E. L. Krinitzsky タイトル（英）： EFFECTS OF MAGNITUDE, DISTANCE, AND SITE CONDITIONS ON DURATION OF STRONG EARTHQUAKE MOTIONS 抄録（英）：
The observed spread in the frequency content of strong-motion accelerograms does not vary greatly with duration, magnitude, and site geological conditions though there is a predominance of low frequencies (<2 Hz) at alluvial sites. Maximum bracketed durations (>0.05 g) appear to be greater in soil sites than in rock sites by a factor of at least 2 to 1. A decrease in bracketed duration with distance from source is very pronounced for soil sites in the near field. Resonance can greatly increase the duration of shaking, particularly in soft alluvium. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集