掲載雑誌(和): 土木学会論文集 I 巻: -巻 号: 368/I-5号 頁: 373-382頁 年: 1986年 月: 4月 著者(和): 沢田勉,永江正広,平尾潔 タイトル(和): 位相差分による地震動継続時間の定義とその統計解析 抄録(和):
フーリエ位相の差分を用いて地震動継続時間を定義し, 従来より用いられている継続時間との比較から, 定義した継続時間の特徴を明らかにするとともに, これら継続時間の回帰分析を行い, 地盤条件やデータセットの違いが解析結果に及ぼす影響を検討した. その結果, 本研究で定義した継続時間の指標が地盤条件の影響をほとんど受けないことがわかった. キーワード(和): 地震動,統計解析,位相,差分法,回帰分析,基礎地盤,Fourier解析 掲載雑誌(英): JOURNAL OF STRUCTURAL MECHANICS AND EARTHQUAKE ENGINEERING 著者(英): タイトル(英): A DEFINITION FOR DURATION OF EARTHQUAKE GROUND MOTION BY PHASE DIFFERENCE AND ITS STATISTICAL ANALYSIS 抄録(英):
In this study, a duration of earthquake ground motion was defined by thestandard deviation of relative frequency distribution of Fourier phase differences. It was examined from comparison of the motions on surface ground with ones on base rock how the duration was influenced by soil condition. Then, the regression analysis was carried out to investigate the dependence of the duration to magnitude, epicentral distance and difference of datasets. It was concluded that present duration was not influenced by soil condition so much and the duration of motion on surface ground was equivalent to that of base rock. The difference of datasets had a large influence to the results of regression analysis for the duration, so the attention should be paid when a statistical analysis was carriedout. キーワード(英): - 記事区分 投稿論文 区分     論文集