震級頻度關系 的英文怎麼說

中文拼音 [zhènbīnguān]
震級頻度關系 英文
magnitude frequency relation
  • : Ⅰ動詞1 (震動) quake; shake; shock; vibrate 2 (情緒過分激動) be greatly excited; be deeply ast...
  • : Ⅰ名詞1 (等級) level; rank; grade 2 (年級) any of the yearly divisions of a school course; gra...
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ動詞1 (使開著的物體合攏) close; shut 2 (圈起來) shut in; lock up 3 (倒閉; 歇業) close down...
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  1. 754 horizontal - component digital broad - band records in western north america are processed. the acceleration response spectra are calculated and used as part of the database. the response spectrum values are estimated by the earthquake magnitude definition and are used as another part of the database

    將美國西部地區作為參考地區,對美國南加州地區的數字寬帶記錄進行了搜集與處理後作為觀測資料,共754條水平向記錄,與利用定義所估計的反應譜值一起,用統計回歸的方法建立美國西部長周期加速反應譜衰減
  2. In addition, effects of several factors such as local site conditions, focal mechanism, epicentral distance and seismic magnitude on these parameters are discussed, and several significative results and conclusions are obtained. in all records there are about 1 / 3 vertical ground motion ’ s peak acceleration bigger than 2 / 3 of the corresponding horizontal one, so the action of vertical ground motion should not to be underestimated. vertical design response spectrum equals that the horizontal design response spectra times 65 % is probably unsafe when period is short, and suggest adopting different coefficients when at different periods

    本文基於對大量歐洲強記錄的研究,分析了地動豎向與水平向分量在峰值加速、反應譜值、譜周期等參數方面的差異,以及這些參數與場地、源機制、中距的,得到了以下有意義的結果和結論:在本文分析的地記錄中大約1 / 3的記錄加速峰值比大於2 / 3 ,豎向地動分量的作用不可低估;在短周期,豎向地動影響數的最大值僅取為水平向地動影響數最大值的65 %是偏於不安全的,可以考慮按周期分段採用不同的折減數;我國現行抗規范中設計反應譜特徵周期的取值偏低,可能是偏於不安全的;豎向與水平向地動分量卓越周期的比值在0 . 7 - 0 . 9之間,豎向設計反應譜的特徵周期應有單獨規定。
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