水平地震動 的英文怎麼說
中文拼音 [shuǐpíngdezhèndòng]
水平地震動
英文
horizontal earthquake ground motion-
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。Wave motion theories for analysis of horizontal seismic responses of structures
用波動理論分析結構的水平地震反應So the topic for farther discussion will be developed on the ground of soil - foundation - structure interactions, and em phasizes particularly on the investigation for dynamic effects on interaction of pile - supported structures subjected to lateral seismic load at layered - soil media. it will provide engineering application with practical and concise computational method, but also provides the aseismatic design for pile - supported structures with proper theory foundations and schemes to some extent on condition that definite codes are absent at present. the full article is divided into six chapters, as follows : 1
本論文工作將圍繞地基-基礎-上部結構共同作用這一課題作進一步探討,側重於水平地震作用下層狀地基土中的樁基-建築物的動力相互作用的研究,為實踐應用提供了適合於工程目的的、比較簡捷的實用計算方法,亦擬為沒有明確規范指導的樁(土)基礎-結構抗震設計提供一定的理論依據和設計建議。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 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。The results show that minor and major earthquakes calculated from moderate earthquake have not consisted probability and the ratios of bedrock peak accelerations under different exceeding probabilities are closely correlative with earthquake environments
結果表明,由中震地震動參數換算得到的小震、大震地震動參數不具備一致概率水平,不同概率水準下基巖峰值加速度的比值與地震環境密切相關。According to the need of design code for anti - seismic of engineering constructure, the bedrock peak acceleration rate and response spectrum of exceeding probability of 63 %, 10 % and 2 % are given respectively and seismic motion parameters are also calculated, which will provide the evidences for anti - seismic design of this electric power equipment station
按工程建築物抗震設計規范要求,分別給出了50年63 % 、 10 %和2 %超越概率水平的基巖峰值加速度及反應譜,計算出地震動參數,為該電力設備站建設提供了抗震設計依據。First of all, it determines the scope in which earthquake might be genetated, the potential seismic sources areas and the upper limit of the earthquake magnitude through the analysis, research and evaluation of the area seismic geological condition of the workzone. secondly, according tothe research of the seismic activity, it also determines the seismic activity coefficients for per potential seismic sources areas, and the delay relation of seismic intensity and seismic accelaration, and then three different seismic intenstities and dynamic strength of bedroch under different probability are given. through the analysis and caculation of earthquake hazard with the analytic approach of probability
首先,對工作區的區域地震地質環境進行了分析、研究、評價,確定了萊蕪市可能發生地震的范圍、潛在震源及其震級上限等。其次,根據對地震活動性的認識,確定了各潛在震源區的地震活動性參數及萊蕪市地震烈度和地震加速度衰減關系,在此基礎上用概率分析法對萊蕪市地震危險性進行了分析計算,得到了萊蕪市在三種不同概率水平下的地震烈度和基巖地震動強度。The elephant foot bulging deformation of rigid walls of liquid - storage tanks under horizontal and vertical seismic ground motions is analyzed by using the finite element model involving fluid sloshing and tank bottom uplift with ansys
摘要基於ansys軟體建立了考慮液體晃動和罐底提離立式儲液罐有限元模型,分別進行了水平地震和豎向地震作用下罐壁「象足」變形分析。In addition, effects of several factors such as local site conditions, focal mechanism, epicentral distance and seismic magnitude on these parameters are discussed, and several significative results and conclusions are obtained. in all records there are about 1 / 3 vertical ground motion ’ s peak acceleration bigger than 2 / 3 of the corresponding horizontal one, so the action of vertical ground motion should not to be underestimated. vertical design response spectrum equals that the horizontal design response spectra times 65 % is probably unsafe when period is short, and suggest adopting different coefficients when at different periods
本文基於對大量歐洲強震記錄的研究,分析了地震動豎向與水平向分量在峰值加速度、反應譜值、頻譜周期等參數方面的差異,以及這些參數與場地、震源機制、震級和震中距的關系,得到了以下有意義的結果和結論:在本文分析的地震記錄中大約1 / 3的記錄加速度峰值比大於2 / 3 ,豎向地震動分量的作用不可低估;在短周期,豎向地震動影響系數的最大值僅取為水平向地震動影響系數最大值的65 %是偏於不安全的,可以考慮按周期分段採用不同的折減系數;我國現行抗震規范中設計反應譜特徵周期的取值偏低,可能是偏於不安全的;豎向與水平向地震動分量卓越周期的比值在0 . 7 - 0 . 9之間,豎向設計反應譜的特徵周期應有單獨規定。4 ) the dynamic interaction factors of pile groups under horizontal earthquake actions and dynamic forces considering axial loads are first derived in this field, and the affection degree of the factors by the axial loads are investigated
4 )首次推導了考慮軸向力時水平地震作用下和樁頭動力作用下群樁動力相互作用因子,分析了軸向力對動力相互作用因子的影響程度。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方法,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ,以及「構件內力」 。結果表明:在等面積原則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減小,地震反應力略有增加,框架柱軸壓比最大增幅小於8 % ,結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時,結構有利於抗震;水平地震作用力與整體坐標夾角為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小,構件內力增大適中,是一種抗震性能優越的結構體系:在抗震設防烈度較高地區( 8度)和抗震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算,兩種方法所得結果基本一致。The mechanic character, destroying pattern, the ductile and dissipation energy capacity of this composite structure under the earthquake have been clarified. the stiffness degradation, natural frequency, damping ratio of this structural system with the development of intensity of earthquake have also been investigated. with consideration of the top displacement, drift of story and micro - strain of longitude steel bars, the equivalent shell wall method has been presented in order to simplify the design of such type structure
通過試驗,掌握了該結構體系在水平地震荷載作用下的受力特點、變形與耗能性能、結構的破壞形態等力學指標:得到了結構在不同地震烈度條件下的剛度變化、自振頻率、阻尼比等動力特性;綜合結構的頂點位移、層間轉角以及鋼筋的微應變,提出了適合於該結構體系簡化設計的「等效剪力墻法」 。In this thesis, the internal force and transfiguration of the double reticulated dome under different load combination are studied ; the linear and nonlinear analysis are separately performed ; compare the difference between space girder element and space truss element ; at last analyze the dynamical response under seismic action. the horizontal seismic response of double layer oblate lattice shell is analyzed by using step - by - step integration procedure. the effect of some parameters such as exterior load, different support conditions and damping ratio on the dynamic internal forces and dynamic properties is studied
本文旨在研究雙層球狀網殼結構在各種載荷組合下的內力和變形,分別進行了線性和非線性靜力分析;進行了空間梁單元和空間桿單元兩種計算模型的比較;最後進行了在地震荷載作用下的動力反應分析,動力分析中用子空間迭代法得出了這類空間結構的動力特性,用時程法中的振型疊加法分析了結構在水平地震作用下的動態響應規律。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。The pseudo - dynamic test of 1 / 3 - scale model six - story building assembled with hollow shear wall with seams. the internal forces, the deformation and the failure mechansm of the building under earthquake are studied. the rules of frequency, damping and response spectrum are studied. the characters of earthquake response such as structure displacement, interstory drift, action of earthquake, the amplificatory coefficient of acceleration and the rule of strain are discussed. at last, this paper presented the design method of this structure based on the aseismic style and put forward the construction
進行了帶縫空心剪力墻結構六層樓房的1 3模型的擬動力試驗,研究了結構在水平地震作用下的受力特點、變形特徵、破壞形態等力學性能;得到了結構在不同受力階段的頻率、阻尼、反應譜等動力特性變化規律;討論了結構各樓層的水平位移、層間位移、地震力、加速度放大系數及構件應力分佈規律等結構地震反應特徵;指出了結構的抗震類型、薄弱層及薄弱部位;提出了多層帶縫空心剪力墻結構的第一階段設計方法和相應構造措施。Total 18 simulated acceleration time histories for intensity 6, 7, 8 and 9 are adopted as inputs, 6 typical retaining walls heights and 2 bridge abutments with difference are selected as the structural models of soil - structure system, the seismic responses of the system and the horizontal variation of the maximum response accelerations at different height levels are analyzed by means of a wave propagation finite element program
選用針對地震烈度6 、 7 、 8 、 9合成的總共18條地震動時程,選取具有代表性的6個不同高度的擋土墻以及2個不同高度的橋臺模型,利用波動有限元法既有程序分析地震反應,研究水平地震加速度沿高度的分佈規律。The earthquake responses of the asymmetric - plan structure are researched and the main factors that influencing the structure ' s response are established. the influences of the earthquake type and the earthquake input in two directions are also researched. the effectiveness of regulation for the irregular rc frames in the code for the seismic design ( gb50011 - 2001 ) is discussed using the flexibility - based fiber - models beam - column elements in the 3d nonlinear analysis program
本文結合國家自然科學基金資助項目「結構非線性地震扭轉作用和扭轉效應的研究」 (項目批準號: 59978055 ) ,對平面不規則結構的地震反應規律進行了深入研究,明確了影響平面不規則結構地震反應的主要結構參數,研究了不同地震動類型和雙向水平地震輸入對結構扭作用和扭轉效應的影響;採用基於有限元柔度法的纖維模型樑柱單元,建立鋼筋混凝土框架結構三維非彈性地震反應動力分析程序,對依據我國建築抗震設計規范( gb50011 - 2001 )設計的不規則結構進行地震反應模擬分析,討論了現行設計方法的有效性。In this modal pushover analysis, the seismic demand due to individual using the inertia force distribution for each mode. combining these modal demands due to the first two or three terms of the expansion provides an estimate of the total seismic demand on inelastic systems
根據結構動力學原理,提出了首先按各振型的水平地震力進行推覆分析,然後將各振型的推覆分析結果進行組合,得到總地震作用效應。( 3 ) by the means of response spectrum analysis, conducts horizontal seismic analysis to the model. compares the force and displacement of the model under different belted outrigger plans
( 3 )採用振型分解反應譜法對結構進行水平地震動的動力分析,比較和總結了不同加強層設置方案下,結構的位移、內力的地震響應。分享友人