earthquake motion 中文意思是什麼

earthquake motion 解釋
地震動
  • earthquake : n. 1. 地震。2. 大變動，動亂。
  • motion : n 1 運動 動 移動（opp rest）。2 （天體的）運行；（車、船等的）動搖；（機器的）開動 運轉；【機械工...
  1. This scale, commonly known as the richter scale measures the ground motion caused by an earthquake

    這個震級，一般稱為里氏震級，可測量地震引起的地面運動。
  2. Wave motion analysis of earthquake action on the toe of retaining walls

    擋土墻墻趾地震作用的波動分析
  3. In this paper, two key strategies in earthquake risk assessment and risk management for urban areas are studied. one is ground motion based vulnerability evaluation method for buildings which needs to be solved urgently in earthquake risk assessment in china. the other one is financial instruments, such as insurance, reinsurance and catastrophe bonds ( cat bonds in brief ), combined with engineering earthquake risk evaluation which must be faced in earthquake risk management after china entered wto

    本文集中研究了地震風險評估和風險管理中的兩個重要問題，一個是當前地震風險評估中急需解決的，基於地震動參數的房屋建築易損性評估方法；另一個是我國加入wto以後地震風險管理必然會面臨的，與工程地震風險評估密切結合的地震保險、再保險和巨災債券等金融手段。
  4. It shows that hard layers barely affect the ground motion and can thus be neglected in general. the soft layers, on the other hand, can influence the ground motion greatly, i. e., seismic response will decreases when the period less than 0. 1s and it increases when period greater than 0. 3s, but it will not change significantly for the long period over 3s. therefore the whole effect of the soft layers on earthquake ground motion in fact depends on the characteristic frequencies input

    研究結果表明，硬夾層的影響很小，一般情況下，可以不予以考慮；軟夾層有較顯著的影響，其影響主要表現為：對周期小於0 . 1s的高頻段反應減小，對周期大於0 . 3s的較長周期段反應增大，而對周期長達3s及以上周期段反應幾乎無影響，因此，軟夾層對場地地震反應影響的總體作用是增大還是減小反應，取決于計算基底輸入地震動的頻譜特性。
  5. Manla rockfill dam is located at strong motion earthquake area with 8 degree

    滿拉堆石壩地處八度地震區。
  6. Hada mountain embankment dam is located at strong motion earthquake area with 7 degree. it is a sand - fill dam with clay core, stability of the dam under earthquake and the preventive of foundation liquescence is very important for the dam design

    哈達山土壩是位於七度地震區，坐落在厚覆蓋層上的粘土心墻砂殼壩，壩體的抗震穩定、基礎的抗震液化是本工程的技術關鍵問題。
  7. The records we used are mainly from three parts : strong ground motion data before 1992 ' s ; data from scec ( south california earthquake catalog ) ; nsmp ( national strong motion project ). after we developed the attenuation laws, we analysis the attenuation characteristics for the pga and sa with different damping ratio. here we mainly concentrate on the effect of the distance and the magnitude

    在回歸出中小地震的衰減關系后，本文對峰值加速度（水平向與垂向） 、加速度反應譜（阻尼比分別為0 . 005 、 0 . 02 、 0 . 05 、 0 . 1 、 0 . 2 ）的衰減特性進行了分析，影響因素主要考慮了震級與距離這兩個方面。
  8. The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends, which is obviously a paradox. if the points " velocity is not zeroized, soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis. the new method ' s rationality is analyzed

    以往人工合成的地震波在地震結束時即地震加速度恆為零時速度不為零，這與合成地震動是「模擬輸入點從靜止到運動再到靜止的運動過程」這一要求不一致，同時導致時域內多點輸入分析時差動力過大以至算出的損傷值過大，於是本文提出了簡易的地震動速度歸零化方法並分析了其合理性。
  9. We attempted to advance the certainty method based on the background value of earthquake ground motion ' s parameters, combined the probability seismic risk analysis and certainty seismic risk analysis to study the characteristics of earthquake ground motion ' s parameters in jianghuai region which is medium - strong earthquakes ' transition region, and protracted the calculating background values of earthquake ground motion ' s parameters to plane equivalence value maps and solid equivalence value maps

    摘要嘗試性地提出了基於地震動參數背景值的確定性方法，將概率性地震危險性分析和確定性地震危險性分析相結合，對江淮地區這一中強震過渡區的地震動參數特徵進行了研究，並把地震動參數背景值的計算結果繪製成平面等值線圖和立體等高線圖。
  10. Paper study the demolish process of high buildings with the nonlinear dynamic program of three - dimension. with the increase of earthquake motion, the f100r that takes the greatest distortion is changed

    在開發運用三維非線性程序canny的基礎上，對高層結構進行彈塑性動力響應分析，研究了高層建築的破壞過程。
  11. In terms of study on earthquake data and neotectonics motion in heilongjiang riverside and its neighboring region since 1900, the earthquake which was written by yang xiheng at the qing dynasty might exist

    摘要根據對黑龍江河谷地區本世紀以來地震資料的分析和新構造運動的研究，基本認定詩人所描述的地震是存在的。
  12. Methods of seismic response analysis for long - span bridges under multi - support excitations of random earthquake ground motion

    隨機地震動場多點激勵下大跨度橋梁地震反應分析方法
  13. The work of this dissertation is mainly as follows : 1. systemically introduce and evaluate the advance of studies on damage models of reinforced concrete on material, member and structure level ; 2. by inputing earthquake wave for member model, analyse dissipating energy process and development process of structure damage and discuss relation between structure damage and pga, time of earthquake motion

    本文的主要內容如下： 1 ）系統地總結當前鋼筋混凝土損傷理論在基於材料、構件和結構層次的研究進展及其評價； 2 ）通過桿系模型對結構輸入實際地震動，分析結構在地震作用下能量耗散過程以及結構損傷的發展過程，並討論結構損傷和地震動三要素（主要是加速度和持時）的關系。
  14. The obtained results indicate that compared with the clay layer, the liquefied sand layer takes a decreasing effects on the short period component of the surface ground motion and the effects increase with increasing of the thickness 、 depth and width of the liquefied sand layer ; the liquefied sand layer takes a increasing effects on the long period component of the surface ground motion but the effect is not obviously ; to the input earthquake wave, the demarcation point of strengthens and weaken is about 0. 6s

    主要結論為:和同樣的粘土層相比，液化層的存在對地表上地震動的短周期分量主要起減弱作用，且減震效果隨著液化層埋深、厚度的增加而變強;對長周期分量主要起加強作用，但是效果不太明顯;對所輸入的地震波來說加強減弱的分界點所對應周期為0 . 6s左右。
  15. So the result is more accurate than old methods. the result of structural energy response based on wavelet provides a practicable method for structure design and design energy dissipation system in structure, this chapter ' s analysis and contrast tell us littlewood - paley wavelet is not suitable for analyzing energy of earthquake ground motion and structural energy response. on the purpose of calculating energy, meyer wavelet must be modified so that its frequency integral is a constant, the result of energy by modified meyer wavelet and harmonic wavelet is practicable, only the later is bigger but in the same energy level

    通過三種小波基（ littlewood ? paley小波、 meyer小波、諧波小波）下的地震地面運動能量分析以及結構地震能量反應分析說明：直接通過加速度記錄可以求得地震動能量，由於小波系數中同時含有時域和頻域的能量，由此得出的能量比以往的方法更準確；在此基礎上求得了結構的能量反應時程，為結構設計及結構中設計耗能體系提供了具體的方法；通過這一章對比分析得出， littlewood ? paley小波不適合於作地震動能量分析和結構能量反應分析。
  16. For the purpose of wavelet ' s basic concept and wavelet transform fundamental principle, four wavelets : littlewood - paley wavelet, meyer wavelet, harmonic wavelet and odd exponent wavelet are used to analyze structural response under earthquake ; experimental investigation has been carried out for two - stories frame model ; this paper also analyzes earthquake ground motion energy and structural energy response based on wavelet ; this paper proposes dynamic reliability analysis for structure seismic response based on wavelet

    針對小波的基本概念、小波變換的基本原理，本文提出了用四種小波： littlewood ? paley小波， meyer小波，諧波小波，單邊指數小波來進行結構地震反應分析、並對二層框架模型進行振動臺試驗研究、也進行了在小波基下的地震地面運動能量分析和結構地震能量反應、以及結構地震反應在小波基下的動力可靠性分析。
  17. To guarantee the stability of the frame in strong earthquake motion, and on the basis of analysis on the concept of “ capacity design ” in the above three countries seismic design provisions, it is advised that the moment amplification coefficients at the bottom sections of columns for the frame structures in some seismic intensity be increased to reduce the possibility of the frame column yielding. taking the above three countries seismic codes as reference, it is recommended that it be added details of seismic design by using diagonal shear reinforcement to safeguard beams against sliding shear failure, when the positive - negative shear forces are reverse and the ratio is high

    為了保證在大震作用下框架結構的穩定性，借鑒國外規范「柱-梁承載力級差系數」的思想，本文提出了對部分抗震等級的框架結構的柱端抗彎能力增強系數應予以提高，以降低框架柱屈服的可能性;參照國外有關規范的發展，本文建議對于正、負剪力反向且比值較大的框架梁宜增加交叉斜筋，以防止沿垂直裂縫發生嚴重的剪切錯動。
  18. Besides, the method and control principle for testing substructures in a single - story frame system under loading due to eccentric lateral responses of superstructure to earthquake motion is presented. several validated simulation tests have been conducted successfully. additionally, the method and control principle for testing substructures in a

    另外，通過分析單層框架單向偏心的地震扭轉反應，提出了考慮扭轉影響的結構遠程協同擬動力試驗方法，同時編制相應的程序進行了驗證性的結構遠程模擬試驗。
  19. Some essential problems and the developing trend in the observation of strong earthquake motion for hydroelectric engineering are put forward

    最後展望了強震監測工作在我國水電工程領域的發展趨勢。
  20. Zoning map of earthquake motion in panxi area

    攀西地區地震動參數區劃圖的編制
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