隔震體 的英文怎麼說
中文拼音 [gézhèntǐ]
隔震體
英文
shock isolator-
So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys
本文利用對摩擦力和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震反應。同時,文中從研究單質點結構的滑動振動慣性力入手,進而對多質點結構體系滑動振動反應進行探討,分別給出了結構滑動隔震的自身穩定條件。最後,本文利用ansys對基礎固定和基礎滑移隔震兩種工況進行了動力模擬模擬分析,進一步證實了基礎滑移隔規律。The papers whose research object is the 7 - floor frame - structure with isolator - seismic layer, in which the isolator - seismic layer adopt some standard interlayer rubber isolator. by establish a 3 - dimension finite - element modal and use the a nalysis soft - ansys, we can make dynamic analysis on the structure. by analyses we can get some response characteristics of the structure sparked by the normal and rarely earthquake of 8 - degree fortify intensity, by the double - horizons seismic and by the vertical seismic
本論文設計了一7層的具有隔震層的框架結構並以此為研究對象,其中隔震層採用標準件的夾層橡膠隔震墊,通過建立三維有限元分析模型,運用大型有限元分析軟體? ansys對結構進行動力響應彈塑性時程分析,得出了結構在8度設防烈度下的常遇水平地震和罕遇水平地震激勵下的響應特性、在雙向水平地震波激勵下結構的響應特性和在豎向地震波激勵下結構的響應特性。Taking a five - story frame structure as an example, the influence of the piston area, piston stroke, accumulator volume and oil elastic modulus on the systems control effect and energy transition efficiency are discussed in detail
詳細討論了四個主要參數的變化對振動控制效果和換能效果的影響,這些參數包括隔震換能系統的活塞面積,活塞最大行程,蓄能器體積和油液彈勝模量等。A complex model method to analyse the random seism response to the vibration isolation of the base with a masony structure
砌體結構基礎隔震隨機地震響應分析的復模態法On the contents of two sides abovementined, this paper attempts to do some initial researches from three angles as follows : 1, the analyses of anti - seismic features on longitudinal direction of the aqueduct l ) the seismic longitudinal effects are small. the vibrant characters are decided from the structure integration and rigidness of piers and main arch - ring of the aqueduct, so the following measures should be taken in order to weaken and isolate seismic influence : properly broadening the section sizes and adopting the high class concrete, lowering the height and barycenter of building, setting hoop steel bars so as to increase the plasticity of the concrete which can absorb the seismic energy and prevent the damages due to stress centralization on the linkages and changing place
本文試圖就上述的這兩大方面的內容,從以下三個角度進行了初步研究: 1 、縱槽向抗震性能分析1 )湯峪河吊桿拱支承結構的縱槽向地震效應較小;吊桿式拱架結構動力特性取決于槽墩和主拱圈的剛度,以及結構的整體性,故適當加大構件截面尺寸或提高砼標號,盡量降低結構的建築高度和重心,在構件連接和變截面處增設梗脅,按照約束混凝土的要求來加強箍筋的配置,增加砼的延性,以克服地震時構件連接和變截面處的應力集中造成的坡壞,並吸收大量的地震能量,從而起到隔震,減震的效果。The plane - wave analytic solution of the coupled fluid - air - solid system and the fem model of air cushion isolations are applied to study the influence of air cushion on earthquake response of dams. the calculations show that air isolation will reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquakes. if the dam and reservoir is isolated by air cushions, it will decrease the hydrodynamic pressures by more than 90 % and the seismic stresses by 20 - 30 %
將本文首次提出的水體-氣體-結構系統的平面波作用理論解和三維有限元模型,應用於溪洛渡雙曲拱壩的抗震安全性和氣幕隔震可行性研究中,表明氣幕對高拱壩具有良好的隔震性能,可降低動水壓力90以上,壩體地震拱應力20 30 ,減震效果顯著,並使壩體的抗拉安全系數從0 . 93提高到3 . 58 。In this paper, the seismic reduction function of sand cushion under masonry structure foundation and some possible factors that may have effect on its seismic reduction function are tentatively discussed through theoretical computation and shaking table experiments. it provides some foundation for sand cushion ' s application in civil engineering
本文通過理論分析計算和室內砂箱振動臺地震模擬試驗,對砌體結構基礎下砂墊層的隔震性能及可能影響其減震性能的因素作了一些初步的探討,為今後砂墊層減震作用在工程上的應用提供了依據。Shaking table testing of shock insulation by soft soil - hinged pier system
鉸接樁體系隔震性能的振動臺試驗研究The deformation of the structure mainly focused on the isolated layers and the superstructure shift as a whole. the interlayer displacement of the isolation system is far low. the earthquake effect of the base - isolated structure is dicided on the horizontal stiffness and elastic and plastic capability of the isolated layer, the base shear, the interlayer shear, th ' e interlayer displacement of the isolation system is far lower than the result of the base - fixed system under the same condition of the superstructure
橡膠墊隔震結構在水平地震作用下的反應以「整體運動」為主,結構位移主要發生在隔震層,上部結構的層間位移很小。隔震結構的地震反應主要決定於隔震層的剛度和彈塑性性能。其中,隔震結構的基底剪力,上部結構的層間剪力在多遇地震下,比不隔震時均有所降低。Then a simplified computational modal of damping isolation systems is established for a platform structure, and the relationships between the parameters of isolation layer and structural damping ratio, including their vibration - suppressed effect on the whole structure and the relative displacement of isolation layer are studied, and the simulation analysis under several representative load case of random wave force and earthquake affairs is performed. under random wave force, using complex mode theories, non - classically damp problems considering the interaction between the structure and wave, lying in deepwater, are studied. and the resolution solution of structural response are achieved. the results of calculating and analysing show that adding damping isolation to a jacket is an effective way to reduce vibration for offshore platforms
針對某一典型平臺結構,建立了海洋平臺結構阻尼隔振體系簡化計算模型,進行了波浪荷載工況和地震工況的數值模擬,研究了隔振參數與結構阻尼比的關系以及它們對結構整體和隔振層層間相對位移的控制效果,運用復模態理論研究了位於較深水位的固定式導管架海洋平臺在隨機波浪力作用下考慮結構與波浪相互作用時運動方程中非經典阻尼的解耦問題,獲得了結構響應的解析解。And simulation analyses were carried out to examine the influence of the parameters of the controlled structures and the controllers on the control effectiveness of the system. the simulation results show that the different control laws ca n bring on the different control effectiveness
在隔震體系中,第一振型控制律和主振型控制律所產生的減振效果是相同的,因為隔震體系的第一振型就是主振型。And zhou xiyuan et al. the serial isolation system consisting of laminated rubber bearing and r / c column and the combined bearing consisting of an up small one and down larger one are introduced and their calculation formulas of static stability is derived. with the latter calculation formula, the static stability formula of the serial system considering p - a effect of r / c column can be acquired
回顧了kelly等人和周錫元等人對橡膠支座的穩定性研究,然後介紹了周錫元等人對疊層橡膠支座和r / c柱的串聯體系以及用兩個不同截面的疊層橡膠支座組成組合橡膠支座的隔震體系提出的實用靜力穩定分析公式,由後者的計算公式,可進一步求得考慮r / c柱p -效應的串聯體系靜力穩定公式。Abstract : at first, the shaking table test of a gravity pier model was done. the comparison between the test data and the theoretical analysis results of the model showed that they are identical to each other. the dynamic model of a whole bridge with gravity piers and lead - rubber bearings was set up. the positive role of lead - rubber bearings on lowering the seismic responses of railway bridge and the seismic character of gravity piers were analysed. some earthquake resistance measures of railway bridge with gravity piers were put forward
文摘:首先進行了重力式橋墩模型振動臺模擬地震試驗,試驗與理論分析結果基本一致;然後建立了採用鉛芯橡膠支座的重力式橋墩橋梁全橋體系動力分析模型,計算分析了鉛芯橡膠支座對橋梁的減、隔震作用及重力式橋墩的抗震性能,提出了重力式橋墩橋梁的抗震措施。Isolated structure system changes the energy dissipation mechanism of traditional anti - seismic structure, i. e. the earthquake energy is absorbed and dissipated by energy dissipative device set in a isolation layer rather than by the structure and structure elements. this excellent energy dissipation characteristic can not be realized by traditional anti - seismic structure
隔震結構體系改變了傳統抗震結構體系的耗能原理,即通過隔震層的耗能裝置、而不是結構和結構構件來吸收並消耗地震能量,這種優越的耗能特性是傳統抗震結構體系所不能夠實現的。The analysis methods of visc used in earthquake response of base isolation system is discussed, and the key technical method of the visc used in earthquake analysis was probed
本文論述了隔震體系地震反應的可視化系統組成,探索了將visc技術應用於結構地震分析的有效途徑和關鍵技術方法。According to the characteristics of the series - base - isolation structure, the calculation formulas for the equivalent damp and equivalent stiffness of the structure were given, and the desirable equivalent damp could be obtained by rational design of multi - level yield shear stress of composite bearings
根據串聯基礎隔震結構的特點,給出了該種隔震體系的等效阻尼、等效剛度的計算公式;將串聯隔震支座設定為多個屈服剪力水平,得到了較好的等效阻尼。The mechanical properties of the air cushion are studied theoretically. the fem air isolation model based on the state equation of ideal gas is used to study the effects of air isolation. the calculation results suggest that air isolation can reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquake
應用在平面波作用下液體-氣體-固體動力系統的理論,分析了大壩隔震氣幕的力學性態;應用基於理想氣體狀態方程的氣幕隔震的壓力有限元模型,對模型氣幕的隔震效果進行了研究。A new pattern of structures, combined isolation structure, was presented, and its vibration and control equations were derived
摘要提出了一種新的結構體系組合隔震結構體系,並推導了振動及控制方程。Analysis results indicate that base isolation technology has obviously seismic isolating effect, and decreases maximum response of structure sharply when earthquake occurs, and isolates seismic energy effectively
結果表明:隔震體系具有明顯的減震效果,它大大降低了地震作用下結構的峰值反應,有效地消耗了地震能量。The lrb isolation is not only safe and liable, but also easy to analysis. the deformation of the structure mainly focused on the isolation layer and the superstructure shift as a whole
理論計算的結果表明,隔震體系安全可靠,計算簡便;隔震結構在水平地震作用下的位移反應以「整體平動」為主,結構的變形集中在隔震層。分享友人