掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 8-1巻 年： 1990年 頁： 511-516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 THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Lin LU, Fumio YAMAZAKI, Tsuneo KATAYAMA タイトル（英）： SOIL AMPLIFICATION BASED ON THE CHIBA ARRAY DATABASE 抄録（英）：
The amplification characteristics of earthquake ground motion were investigated based on the Chiba array database. Firstly, the amplification ratios of the peak ground acceleration were calculated for 27 events. The amplification ratios for two horizontal components were rather similar with amplification mostly occurring at a level of a few meters below ground surface. The frequency response and coherence functions were calculated for each event using the smoothing technique. The ensemble frequency response and coherence functions were also obtained and they were compared with those for each event. A one-dimensional earthquake response analyses was also conducted. Both the frequency response functions and acceleration time histories obtained through the analyses corresponded to the records. The effects of smoothing the frequency response and coherence functions were also examined around the natural frequencies of the system. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集