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題 名 | 符合設計震譜人工地震之製作 |
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作 者 | 陳泓文; | 書刊名 | 四海學報 |
卷 期 | 9 1994.12[民83.12] |
頁 次 | 頁33-43 |
分類號 | 440.15 |
關鍵詞 | 人工地震; 設計震譜; 包絡線; 震譜分離; Artifical earthquake; Design spectum; Envelope curve; Spectrum separation; |
語 文 | 中文(Chinese) |
中文摘要 | 本文之目的在建立一個符合設計震譜之人工地震,以作為結構物進行動力分析時所需之地表加速度歷時,其方法乃利用模擬強震儀所產生之初始地震歷時,並依過去發生之地震歷時包絡線與設計震譜,來修正其加速度反應譜,使其與設計震譜一致,所得之地震歷時,即為符合設計震譜之人工地震。 本文之主要貢獻如下:(1)利用基本結構動力學理論,以模擬強震儀產生人工地震歷時,製作原理簡單,易於瞭解。(2)以地震歷時包絡線取代地震歷時記錄,勿需經帶通濾波系統及基準線修正。避免原始地震記錄因人為濾波而有所失真。(3)對盆地構造區域以震譜分離方式,來反映其設計震譜特性與地動參數特性,使建立之人工地震更趨合理。 |
英文摘要 | This paper presents a procedure for generation of spectrum compatible artifical earthquakes as the ground motion time histories for use in structural seismic analysis. The spe'ctnim compatible artifical earthquakes are modified and compared the initial response spectra,which are generated by the simulative accelerometer,with the desired design spectra and earthquake time history envelope curves. There are several advantages for such procedure: 1)The theorem of the artifical time history generated by the accelerometer is clear and well-understood.(2)The procedure avoids the error by using the envelope curve instead of the time history which need be modofied by the band pass filter and the base-hue correction.(3)For basin area,the artifical earthquakes generated by this procedure are more reasonable by using spectrum separation to reflect the design spectrum and time-severity characteristics. |
本系統中英文摘要資訊取自各篇刊載內容。