引震應力 的英文怎麼說
中文拼音 [yǐnzhènyīnglì]
引震應力
英文
earthquake-generating stress- 引 : Ⅰ動詞1 (牽引; 拉) draw; stretch 2 (引導) lead; guide 3 (離開) leave 4 (伸著) stretch 5 (...
- 震 : Ⅰ動詞1 (震動) quake; shake; shock; vibrate 2 (情緒過分激動) be greatly excited; be deeply ast...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
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7. horizontal earthquake acceleration is used in this paper for slope risk analysis ; the relationship between the safety factors under the earthquake effect and non - earthquake effect is obtained. the reliability index is expressed by the safety factor
7 、將地震力效應以水平地震加速度的形式引進土坡的可靠度風險分析中,探求動力作用下土坡的動力安全系數與相應條件下的靜力安全系數的關系,並以安全系數來表徵土坡的可靠度。The pilot fuel model has been given to calculate the distribution of the liquid fuel and time of fuel pre - combustion, at the same time, analyzing the important action to the combustion of the natural gas in the combustion chamber of engine, determining the best quantity of pilot fuel. the explosive combustion model has been established to compute the pressure of the cylinder during the combustion, determining the main influence factors. the emission model has been established to forecast the co, nox emission
理論方面,提出了基於化學反應的燃燒模型?多組分氣相反應系統的化學反應動力學模型,以此進行雙燃料發動機的熱力學?化學反應動力計算;引燃油燃燒模型,計算引燃油液滴的分佈規律和滯燃期,驗證引燃油在雙燃料發動機燃燒過程中的作用,揭示不同噴油規律對雙燃料發動機的影響,確定在不同負荷下的合理引燃油量;爆震模型,揭示爆震與工質能量釋放間的關系和影響爆震的各種運轉因素,確定合理的爆震依據,減小爆震傾向。It's important to ensure adequate stiffness to resist lateral forces induced by wind, or seismic or blast effects.
保證足夠剛度以抵抗風、地震或爆炸氣浪效應所引起的橫向力是很重要的。In lights of the calculation of stress field of water pressure, the stress caused by water is utterly small in contrast to earth stress field, so it cannot directly induce large reservoir
通過對水壓應力場的分析發現,水體靜載引起的應力場相對于大地應力場來說微不足道,它不可能直接誘發較大的水庫地震。Non linear static & dynamic finite element procedure is adopted for the true emulation of the four typical geologic profiles of the dam, and imitates to compute the each stage deformation and stress distribution from the dam fill to full water run and during the 7 degree seismic intensity, the article also imitates to compute the response to earthquake force, the excess vibration pore water pressure distribution and permanent deformation, predicting the occurrence possibility of the crac ^ plastic zone and earthquake liquefaction
採用非線性靜、動力有限元分析程序對圍壩的4個典型剖面進行了靜、動力模擬模擬,模擬計算了壩體自填築至蓄水運行和發生7地震各階段壩體及壩基的變形以及應力分佈,地震應力響應和地震引起的超靜振動孔隙水壓力分佈以及永久變形。判斷了壩體和壩基中出現裂縫、塑性區以及地震液化的可能性。This thesis will present a new simple method to calculate the seismic response of the framed structures. this method calculates the effect of the first and second modal vibration. the first modal shear force of every floor distributes according to the shape which is close to the first modal shape
本論文提出了一種新的計算框架結構地震作用效應的簡化方法,考慮前兩個振型的作用,對于第一振型的各層剪力,按照近似於基本振型的形狀分佈,第二振型各層剪力引用廖河山提出的方法計算,然後用將兩個振型的剪力「平方和開平方」的方法,計算得到各層剪力(總效應) 。Structural internal forces and deformation caused by seismic load are bigger than that caused by automotive load. seismic load controls the designing of large span and small " width - to - span " ratio of large span cfst arch bridge. the seismic resistance is bigger than that with considering combination of various directions, so seismic load combination of various directions should been taken into account during design of large span cfst arch bridge
地震荷載所引起的內力和變形均大於車輛荷載引起的內力變形,對大跨、寬跨比小的鋼管混凝土拱橋來說,應以地震荷載控制內力和變形設計,考慮多方向地震荷載的組合后,所得的地震力更大,說明在計算地震力時,應該考慮多方向地震荷載的組合。Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以隨機有限元理論為基礎,將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異,以及同時變異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構參數的變異對響應的均值變化影響都不大,主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異,質量的變異性影響稍小,阻尼的變異性影響不顯著.結構各參數的同時變異,對框剪結構地震響應的影響,僅比剛度單獨變異的影響稍大The concept of the equivalent mode and the modal participation coefficient is introduced when the regulation structures are studied. as to the vertical irregular structural systems, the inter - story capacity spectrum method is used and the strength reduction coefficient 77 is put forward when the capacity method is used to evaluate the performance of the torsional irregular structures
對于扭轉不規則結構體系,引入與結構偏心矩大小和結構平面整體尺寸有關的強度降低系數叮來考慮結構的扭轉效應,選取結構的基底剪力和邊軸線的最大反應位移為參數,應用能力譜方法進行抗震性能評估。This paper introduce simulink to simulation of structural nonlinear seismic responses innovative, working on regulation and dominance of simulation of structural dynamic response of simulink based on muti - storey shear - type model and member model, and set up basic block of structural dynamic response to pave the way for wide analysis of structural dynamic response, especially vibration control
本文開創性地將simulink引入結構非線性地震反應模擬中,以層間剪切模型和平面桿系模型為對象,努力探討simulink用於結構動力模擬的規律並發掘其優勢,編制結構動力模擬的基礎性模塊,為逐步實現更廣泛的結構動力分析尤其是結構的振動控制奠定基礎。Non - uniformity of the amplifying effect and dimension of the slope are pointed out through analysis of the distribution of the stress and sonic speed in the slope. forms of slope lost stability resulted from blasting vibration are analyzed and appraising rules of slope stability are summarized by a great deal instances on coasts. based on general discussion about calculation methods of the slope stability under the effect of blasting vibration, the synthetical method, a new one, is put forward, analyzed through a sample by and pointed out which is one of most valid methods
利用波動理論,得出延期時間為nt / m時減震效果最好;在分析邊坡巖體內部應力、質點速度等分佈規律的基礎上,指出邊坡震動放大效應的不均勻性和邊坡尺寸效應;結合大量滑坡實例,分析了爆破震動引起邊坡失穩破壞的幾種形式,總結出邊坡穩定性評價準則;基於對邊坡穩定性計算方法的綜合分析,提出了一種綜合分析方法,通過算例計算分析,證明該法計算精確度高、功能全面,是邊坡動力穩定性分析的有效方法之一。From above analysis, the thesis gets conclusions as following : ( 1 ) the frequencies of multi - tower building are so dense and the coupling in each mode is so evident that the cqc method instead of srss should be used to calculate the seismic action effect ; ( 2 ) torsion effects is distinct between the modes of asymmetry multi - tower structure and it is necessary to take translation - torsion coupling into account ; ( 3 ) the effect of the enlarged base rigid on the seismic properties is very big, the rigid ratio of the enlarged base to towers in asymmetry multi - tower structure should be designed in a proper range ; ( 4 ) the distribution of plane rigid is asymmetry because of the asymmetry layout of towers. the torsion effects of structure not only result in large torsion internal force in vertical element resisting lateral displacement, but also make large influences on the stress of transfer plate and near floors, thus it is necessary to strengthen those floors
通過上述分析,得出以下主要結論:多塔樓結構存在頻率密集現象,各振型間耦聯效應明顯,地震作用計算應採用cqc組合原則而不能簡單地採用srss組合原則;非對稱多塔結構的振型中,扭轉作用明顯,平扭耦聯效應值得考慮;裙樓剛度對整體結構的抗震性能影響很大,非對稱多塔結構宜控制裙樓與塔樓剛度比在適宜的范圍;非對稱多塔易導致平面剛度分佈不均勻,結構扭轉效應不僅在豎向抗側構件中引起較大的扭轉內力,對轉換層樓板應力有較大的影響,且延續至相鄰樓層,對相應樓層均應採取相應的加強措施。This discovery lends credence to the controversial idea of forcefully injecting water or steam into faults at the base of an unstable flank to trigger the stress - relieving earthquakes needed to let it down slowly
這項發現無疑為一個爭議性的構想打了一劑強心針:在不穩固邊坡底部的斷層,強行注入水或蒸氣,目的是引發地震、釋放應力,以緩慢降低邊坡坡度。Prior records had shown much slower motion along the offshore fault there, so it was unclear that stress could ever build up enough to result in such a violent tremor
以往的記錄顯示,沿著那條近海斷層,雖常發生速度較慢的地層活動,但引發這場海嘯的應力是如何累積到足以導致猛烈震動,原因不得而知。To determine if the dam base been liquefied through contrasting the shear stress which caused sand and gravel layer liquefied measured from indoor dynamic triaxial teat with calculated shear stress caused by earthquake in different depth of sand and gravel layer. and according to result of comparison to direct the design scheme of dam base
根據室內系統的動三軸試驗測定的砂礫石層液化所需的剪應力與計算的砂礫石層中不同深度處由地震引起的剪應力相對比,從而最終判定壩基是否液化,並根據該結論指導了壩基設計處理方案。The seismic response is analyzed with total stress method ; and it ' s found that the positions of the most dangerous slide surfaces are fairly stable though the precision for searching is very high. the idea of newmark method is induced to calculate permanent deformation on circular sliding surfaces. the precision is increased and the complexity of searching is lessened
本文採用總應力法分析了填埋場在地震作用下的動力響應,通過計算發現,在滑弧搜索的精度相當高的情況下,最危險滑弧的位置仍然比較固定;在這一發現的基礎上,引入newmark地震永久變形的思想,並將其運用於圓形滑動面從而提高了該方法的精度並減少了試算的繁復性。Strains in the earth ' s crest seem to pile up, mail the rock formations break with cracks into new positions, often causing large natural earthquakes
地殼的應力似乎在積累著。直到巖層產生裂縫移位為止,這往往全引起大的自然地震。Analysis of a great many data shows that some strong earthquake will arouse seismogenic zone loading and bring the increase of stress, accelerate accumulation of nonlinear strain of medium. it will make the earthquake source rupture of high stress status in unsteadiness in advance, which resulting the proceeding earthquake occur in advance
表明:某次強震活動可以引起某些孕震區的加載,介質非線性應變積累加速,使處于高應力狀態的震源失穩提前進入不穩定狀態,后續強震提前發生,即強震之間存在著時間、空間上的關聯性。We suspected that stress transferred beyond the end of each rupture triggered the successive earthquake, including izmit ' s
我們推論,應力轉移的范圍會超越每次斷層破裂的末端,引發下一次地震,伊茲米特市的地震正是一例。Earth quakes can result from stresses in the earth ' s crust
地殼內的應力可能引起地震。分享友人