震動固結 的英文怎麼說
中文拼音 [zhèndònggùjiē]
震動固結
英文
consolidation by vibration-
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。Considering special form of the boiler frame, the reconstruction and enforcement method, in addition dynamic analysis are given by particular steps : establishment of the model of boiler steel frame, determination of earthquake loads and distribution form, and anti - side force system for the frame to model and analyze, involving loads on the frame and above it, earthquake loads, damping, sway control installation, hanging bar and plate beam
考慮鍋爐構架鋼結構的特殊形式，研究並提出了電站鍋爐鋼結構改造加固研究方法，及動力分析的具體步驟：建立了鍋爐鋼結構動力分析模型、地震荷載分析方法、建立了鍋爐鋼結構布置型式、及整個鍋爐鋼構架抗側力體系模擬分析方法。具體包括：鋼構架本體及構架上荷載、地震載荷與阻尼系數確定、制晃裝置確定、吊桿與大板梁簡化。Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled
（ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。The study of consolidation of layered saturated soils under variable loading is an important issue to geotechnical engineering. it is also of great value to the development of the elastodynamics and is very helpful to the analysis and design of foundations subjected to dynamic loads, such as vibrating machines and seismic waves. some aspects about this problem are studied in this dissertation
變荷載下成層地基的固結問題一直是巖土工程界不論在理論方面還是實際方面的重要課題，它不僅對于彈性動力學的發展有著重要的學術價值，而且對機器基礎及地震荷載作用下基礎的分析和設計具有重要的指導意義。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。The researches of dynamic behavior and liquefaction potential of saturated sands have been further. however, more and more macroscopic liquefaction phenomena and experimental investigations show that different depositional environments lead to different structure of soils, while the influence of structure property of soils on liquefaction resistance is no less than that of density and consolidation stress and so on. ancient alluvial flat deposits, namely recently deposited soils, are easier liquefaction during earthquake
對於一般飽和砂土的動力特性和液化勢的研究已比較深入，然而，愈益增多的宏觀現象和試驗研究表明，由於土的沉積環境不同而導致土的結構性的差異，而土的結構性對抗液化能力的影響並不亞於密度、固結壓力等因素，古河漫灘堆積物即新近沉積土在地震當中更容易液化。In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress
本文結合實際工程，對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗，確定了該壩粉煤灰的靜動力學指標；然後根據比奧（ biot ）固結有效應力原理，採用鄧肯（ duncan ）非線性應力應變模型，對該灰壩的二維靜力應力和變形狀態進行了分析；最後利用本文提出的地震超靜孔壓指數函數模型，採用等價粘彈性動力有限元方法，對該灰壩在地震作用下的動力穩定性進行了分析評述。When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other
得到了以下結論： 1 ）樁的相互作用因子隨頻率呈周期性變化，在振動頻率比較低的情況下，樁的橫向相互作用因子也較低，當頻率趨近於零時，相互作用因子也趨近於零； 2 ）樁的相互作用因子的幅值隨瑞利波入射角度的變化而變化，在= 0情況下幅值最大，且隨入射角度的增加，波動的周期明顯縮短； 3 ）樁的相互作用因子的幅值隨著樁與樁間距的增加而減小，至s d = 15時，樁的相互作用因子基本趨近於0 ； 4 ）在頻率比較低時，相互作用因子幅值隨樁土相對剛度比的增加而顯著增加； 5 ）樁頂固接可以有效地降低群樁的橫向地震響應幅值，由瑞利波產生的群樁效應可以忽略不計； 6 ）群樁中不同樁位的樁的橫向地震響應是不同的，每根樁所在的樁位對其橫向地震響應有很大的影響；刀樁數的增加並不能減小樁的橫向動力響應。Special kneading machine, firm structure, durable ; double motors, strong power ; bit vibration, stable ; also can knead litter powder ; easy operation, easy clean ; good quality, conform to the safe test
專業用打面機，結構堅固，耐用；雙馬達，馬力大；震動小，穩定性大；攪拌效果佳，且可以攪拌小容量麵粉；操作安全，容易清洗；高品質，符合安全測試。Based on the shaking table test of 1 / 4 scale two - bay rc frame modes strengthened with and without cfrp ( carbon fiber - reinforced plastic ), damaged and destroyed model strengthened with cfrp, the vibration properties and seismic response and destroying position of rc frame model with cfrp are analyzed
摘要通過對兩個縮尺比為1 / 4的兩層單跨鋼筋混凝土框架結構模型的加固、未加固及其震壞后再加固的3次振動臺對比試驗，探討了其動力特性、地震反應和損傷破壞情況。And a post - liquefaction test method has been put forward, in which the cyclic loading and the static loading courses are both controlled by stress mode. this method reflects the in - situ conditions well and truly, and a lot of tests have been done using this method. in these tests the effects of confining pressure, relative density, liquefaction severity etc. have been thoroughly investigated
主要工作內容如下：參與研製了振動扭剪全自動多功能三軸儀，並利用其獨特試驗功能設計了一套飽水砂土液化后特性的試驗方法，試驗過程中模擬地震作用的動加載過程及模擬大變形發生的靜加載過程均採用應力控制的方式進行，試驗方法跟現場條件更為接近並用該試驗方法對相對密實度、固結壓力、液化度等對液化后變形特性的影響進行了研究。This paper introduces the development and present situation of vibration absorb technology in the world ; generally analysis the rubber - bearing ( rb ) and lrb " s operative mechanism, function and the calculation of parameter ; advance the concept of standardization to lrb ; on the basis of generally analyzing the connected factor such as the site category, the diameter of lead bar, the height of bearing, the designing carrying capacity, the span of bridge, the inherent period and the displacement of rb, determine the parameter, the absorbing vibration target, the method and the process of standardization to lrb ; then according to the two - step rule of resisting and defending earthquake, and combining with the response spectrum theory in the seismic vibration of bridge, make a lot of calculation and analysis of vibration absorb design to the real bridge collected and combined by finite element program ; at last, gives the result of standardization through diagram and explains to its usage
本論文介紹了國內外減震技術的發展和現狀；綜合分析了普通板式橡膠支座和鉛銷橡膠支座的工作機理、性能及參數的計算；提出了鉛銷橡膠支座標準化的概念；在綜合分析場地土、鉛銷直徑、支座高度、設計承載力、橋梁跨徑、固有周期以及支座變位等影響因素的基礎上，確定了鉛銷橡膠支座標準化的參數、減震目標、方法和過程；並根據抗震設防兩階段原則，結合橋梁地震振動理論的反應譜法，運用有限元程序對收集和組合的實橋進行了大量減震設計的計算和分析；最後以圖表的形式給出了鉛銷橡膠支座標準化的結果，並說明了其使用方法。The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance
論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。Meanwhile through analyzing the characteristic of the frequency spectrum of real seismic load, the influence of sismic load ' s feature period on dynamic response result of the grotto rock 15 revealed
並通過對地震荷載的頻譜特性分析，揭示了地震荷載的特徵周期對錨索加固石窟圍巖的動力響應結果的影響。On the basis of the wide investigation of the achievement home and abroad about the friction energy dissipation frame, this dissertation has completed a whole research process - from time - history response analysis of the structure with friction energy dissipation, to the theoretical research on the frame with friction energy dissipation, up to application of friction energy dissipation in structural seismic
本文在廣泛調研國內外對摩擦耗能框架結構的研究成果基礎上，從摩擦耗能框架動力時程分析的研究出發，逐步深入開展對摩擦耗能框架結構的理論研究，進而探討摩擦耗能減震技術在結構抗震加固中應用的設計方法。Then a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring. basing on rotation and displacement equation, we obtain the element stiffness matrixes with semi - rigid connections where the effects of material nonlinear, hysteresis behavior and shear forces in the connection deformations have been considered in and at the same time we modify the fixed - end forces. finally, a program for calculating the elastic - plastic earthquake seismic of semi - rigid connected steel frame structure by step and step integration of wilson -
本文在介紹和分析半剛性連接彎矩與轉角連接關系模型的基礎上，用帶有轉動剛度的彈簧表徵半剛性連接，推導出半剛性連接的剛度矩陣，並對桿件固端力進行修正，同時在考慮剪切變形、材料彈塑性、及構件的動力滯回性能的基礎上，編制了結構彈塑性地震動力時程分析有限元計算程序。Hence, inherent characteristics of slts, together with diversification regulations of inherent characteristics using different model boundary conditions, are studied employing space beam series fea. taking foundation on analysis, dynamic analysis of slts under earthquake load is done and structure response can be available
因而以空間梁元有限元法對網架的固有特性進行計算分析，同時考慮各種邊界條件對于結構固有特性的影響，以此為基礎進行動力分析，考察網架在地震作用下的結構響應。In order to overcome the drawback of classical fixed boundary models, a finite element model of structure - foundation system has been suggested in this paper for the earthquake response analysis of frame structures, such as beams and columns, are described with plane - stress 4 - node quadrilateral parametric element, and foundations with plane - strain 4 - node quadrilateral parametric element
為了正確處理結構?地基動力相互作用，改善以往固定邊界模型將地震能量全部陷入結構計算模型的不合理狀況，以框架結構為例提出了建築結構地震反應分析的有限元模型及透射邊界，模型中採用四結點平面應力等參單元模擬上部框架結構的樑柱構件。Further researches aimed to the study of the effect of treatment and the analyses of the designing method are essential desired o promote the level of application. based on the analyzing the method of designing the dynamic compaction in the world and studying the force mechanism of dynamic compaction
本文在綜合分析和歸納目前國內外強夯技術和強夯方法的基礎上，通過深入分析土的動力固結特性和震動波壓密理論，對強夯加固地基的作用機理進行了深入的探討，提出了強夯加固軟弱地基的一些新觀點。Based on the assessment of seismic risk of surrounding rocks, three sections are selected to perform fem calculating using ground acceleration history of different engineering properties as input. through study of the displacement and stress fields of grotto surrounding rocks under ground motion of different pga, frequency spectrum and duration, the influence of structure of grottoes and neighboring grottoes on dynamic damage and stability of country rock is discussed
通過對不同地震動峰值加速度（ pga ） 、不同頻譜、不同持時作用下，錨索加固洞窟圍巖的位移場和應力場特徵的研究，探討了不同地震動作用下，洞窟的結構及洞窟之間的組合關系對圍巖動態損傷及穩定性的影響。分享友人