moment magnitude 中文意思是什麼
moment magnitude
解釋
矩震級-
Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。 -
The result shows, the source parameters for example seismic moment, corner frequency and stress drop and so on is relative with magnitude, the evolvement characteristic of time and space of stress drop is a new measure for earthquake prediciton
分析表明，該地區的地震矩、拐角頻率與應力降等震源參數與震級有一定的相關性，應力降的時空演化特徵可以作為該地區今後地震趨勢預測的一種新手段。 -
The largest earthquake ever recorded on the moment magnitude scale measured 9. 5
曾經被記錄的用力矩震級描述的最大的地震是9 . 5級。 -
So, records from 15 earthquakes in the u. s. are checked in this paper. especially moment magnitude and fault - distance are added
對大部分地震記錄來說，尤其缺少便於統計應用的矩震級及斷層距等實用數據。 -
Although large earthquakes are customarily re ported on the richter scale, scientists prefer to de scribe earthquakes greater than 7. 0 on the moment magnitude scale
盡管大地震常以里氏震級來報道，但科學家喜歡用力矩量級來描述大於7 . 0級的地震。 -
An explanation of the magnitude of such a dipole moment must seal explicity with two contributing factors.
對這和偶極矩大小的解釋必須明確研究兩個有關的因素。 -
The pressure force on small particles fluctuates from moment to moment in magnitude and direction.
在小的粒子上的壓力，從一個時刻到另一個時刻，在大小和方向上都有起伏。 -
Based on the approach of turning some of the relevant extreme - value - type and logarithmic normal distribution variables into independent and normal random variables, the shear - slipping failure probability of a high arch dam is worked out to be of the order of magnitude of 10 ^ ( - 5 ) by means of second - order moment method
在將部分相關的極值型與對數正態分佈隨機變量轉換為獨立、正態隨機變量的基礎上，利用二階矩法計算得到某高拱壩的剪滑失效概率為10 ^ （ - 5 ）量級。
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