震動作用 的英文怎麼說
中文拼音 [zhèndòngzuòyòng]
震動作用
英文
shock effect-
The stiff floor structure has bigger displacement and smaller internal forces. under seismic forces, frame with eiastic fioor has bigger vibration period, and takes on complicated modes of vibration. due to the big vertical rotation, structure with elastic floor shows more prominently coupling vibration of bending rotating and twisting
如，彈性樓板的結構位移比剛性樓板結構的位移大，內力也是彈性樓板結構的大；在地震力作用下，考慮彈性樓板變形的空間框架振動周期比剛性樓板框架長，而且其振型表現得也比較復雜，由於豎向扭轉位移較大，彈性樓板結構表現出更明顯的彎扭耦聯振動。2. the finite element model of the structure was formed through reasonable simplification. and modal shapes were studied by using the famous program of ansys. 3. long span suspension arch bridges " responses to uniform excitation of earthquake were discussed. one dimension excitation and travalling - wive effect were introduced in this bridges with geometric nolinear being considered
因此，研究懸索拱橋的地震響應，了解大跨度懸索拱橋在強烈地震動作用下的動力行為，對於此種橋型的實際應用具有很大的指導意義。Based on newmark ' s step - by - step implicit integration method, the response analyses of a tunnel are performed by using viscous - spring artificial boundary under various earthquake accelerations and multiform conditions of surround rock. the seismic responses of the tunnel are calculated by changing parameters of surround rock within the tunnel some ranges. two kinds of shock absorption measures, which are setting shock layer and reinforcing surround rock are studied and shock absorption effects, applicable to cases and shock mechanism are analyze
4計算了不同地震動作用下不同的圍巖材料對隧道地震反應的影響，並通過改變隧道襯砌一定范圍內圍巖材料的參數，計算了隧道的地震反應，分析了在隧道施工中設置減震層和注漿加固一定范圍內圍巖這兩種方法的減震效果、適用條件及其減震機理。By means of adopting structure mechanics method, quasi - static approaches, response spectral of modal combination approach and time - history analysis approach, the responding problems of static - dynamic load of structure are solved
分別採用擬靜力方法、動力分析中的振型分解反應譜方法與時程分析方法進行計算，通過三種計算方法的對比分析進水塔結構在地震力作用下的動力響應。Analysis of vibration response data of nuclear reactor structure by blasting vibration
核島結構物在爆破震動作用下的振動響應數據分析For this case, this kind of damper seems not applicable because it does n ' t reduce the strain at the ankle of bushing but increases it under some conditions
而在含有速度脈沖近場地震動作用下，鉛合金減震器不但沒有降低瓷柱的應變，一些情況下還增加了瓷柱的應變。At present, structural identification in time domain excited by ground motion is an important research topic in civil engineering
地震動作用下的時域識別技術是結構識別領域的一個重要研究方向。Abstract : the wave equation, continuous equation for tower structure and the method of characteristic line, are derived in this paper, and variation of structure modulus of elasticity with strain and vibration frequency being considered, state of stress on the structure affected by earthquake wave is analyzed
文摘:推導了高聳結構（桿件）波傳播運動方程、連續方程和特徵線求解方法.並考慮結構彈性模量隨應變及振動頻率的變化，對地震波作用下結構的受力狀況進行了分析After the mechanical model and the dynamic differential equations of the buildings are set up and solved using the theory of structure dynamics, the base isolated system, the tmd system, and this up - low control system are discussed. the analysis results show that the stiffness and damp of the superstructure are variables that play important parts in the effects of earthquake response ' s decreasing. secondly, finite element models are established to analysis the mechanical performance of bawangfen subway platform with upper two buildings in beijing
藉助于ansys - v5 . 7有限元分析軟體，本文還對設置和未設置減震層的北京八王墳地鐵車輛段大平臺結構?上部住宅系統進行了有限元建模，並對這兩個系統的模態和三維地震動作用下的非線性地震反應進行了大量的計算分析，對比了對應於4條地震波的8度小震、中震和大震情況下減震體系和非減震體系的層間剪力和層間位移等反應。Earthquake and wind ), because of the damping matrixes of the two structures " motion equations are both non - classical, the dynamic equation ca n ' t be decoupled by the traditional real - mode analysis ( the mode - superposition method ). though, in this thesis the complex - mode analysis is used to solve the stationary and non - stationary random earthquake response of structures and their analytic expressions are got. on the basis of these expressions, the optimal parameters of the two structures " isolation & seismic decrease equipment are analyzed
目前，基礎隔震結構、 「加層減震」 （ tmd減震）結構正逐步應用於工程實際，由於這兩種結構在動力荷載（如地震、風）作用下動力方程中的阻尼矩陣為非經典情形，傳統的實模態分析方法（振型分解法）不能使動力方程解耦，因此本文運用復模態分析方法求得了結構在平穩和非平穩隨機地震激勵下結構隨機地震響應的解析表達式，在此基礎上進行了基礎隔震和tmd減震裝置參數的優化分析。Study on safety vibration velocity caused by blasting for fresh placing foundation concrete
爆破震動作用下新澆基礎混凝土的安全震動速度研究After t hat, a further p roblem i s s tudied o n d amping effect of lead a lloy dampers under ground motions with significant long period contents and ground motions with velocity - pulse
從鉛合金的減震效果來講，在長周期成分豐富的地震動作用下，鉛合金減震器的減震效果不如預期的效果好。Afterward, element internal forces and node displacements under the el - centro are studied by time - history method, the conclusion was obtained that the pre - stressed ribbed dome structure has a good dynamic performance, but at the same time, it ' s been pointed out that the pre - stress is necessary to structure, without it, the structure may be destroyed
然後，通過對結構在el - centro地震波作用下內力和位移時程曲線的分析，發現該加肋預應力穹頂結構具有良好的動力性能；但同時指出在索中沒有施加預應力的情況下，結構將容易遭到動力破壞。This paper gives the suffering strength analysis of computelr simulating building initiative comtrol by earthquake waves effecting and analyzes some problems, this can give building reaction, destroy character and limit holding
本人用計算機模擬來模擬建築物在主動控制下受到地震波作用下的受力分析，從而來分析一些問題，這可以看到建築物在幾種地震波作用下的反應，其破壞特徵和極限載力。Modal combination method for earthquake - resistant design of structures to multiple seismic excitations
結構在多維地震動作用下抗震計算組合方法Secondly, analysis of effect of improvement and different improvement schemes on characteristics of self - vibration, ground motion and ground seismic resistant of foundation is made. furthermore, characteristics of self - vibration and seismic reaction of different natural ground and improved ground with the same improvement schemes and characteristics of seismic reaction of the same natural and improved ground under different seismic wave are also analyzed
採用所建立的動力有限元模型，分析比較了加固以及不同加固方案對地基自振特性、地面運動特性和地基自身抗震性能的影響；採用同一種加固方案但地基土層條件不同的地基加固前後自振特性及地震響應的差異以及同一復合地基在不同地震波作用下加固前後的地震響應的變化。During dynamic analysis of framework, according to mechanical performance of reinforced concrete frame structure under seismic force, the element of beam and column can be simplify into 5 pole element whose stiffness is variable. then damage model of 5 pole elements with variable rigidity can be established if the damage parameters based on elastic transformative energy are generalized into pole elements
針對地震力作用下鋼筋混凝土框架結構樑柱的受力特性，對框架進行動力分析時將樑柱構件簡化為五段變剛度桿單元，將基於彈性變形能的損傷指標推廣到桿件，建立了該五段變剛度桿單元的損傷模型。With a simplified homogeneous dam body - basement model, during the ground pulse motion, the dams " dynamic responses are analyzed separately with established program and decoupled solution in which explicit finite - element movation solution is combined with multi - transmitting formula
本文利用簡化均質壩體?壩基體系模型，用已有程序及波動顯式有限元結合多次透射公式的解耦演算法計算了在脈沖地震動作用下該壩體模型的動力反應。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。Several important conclusions are gained by the analysis of push - over method and quasi - static reversal load pattern to a reinforced concrete structure : under the two earthquakes, the responses of structure are more serious than the responses under single earthquake, by the conclusion, it is not rationality that structure ' s earthquake damage prediction under single earthquake ; the main - after earthquake action is different from fore - main earthquake action under the same earthquake magnitude combination ; the push - over analysis to the structure is convenient and utility, it also reflects the response and performance of structure under the earthquake, so the method ' s development future is wide. based on the research of the former scholars, some means of structure resisting earthquake are introduced in the last part of this thesis, and the result of earthquake damage prediction for the planning area of quanzhou city is given
通過對一鋼筋混凝土結構進行push - over分析與擬靜力循環往復加載分析，得到了一些重要結論：在兩次地震動作用下，結構物的反應比僅考慮一次地震動作用時的反應要嚴重的多，從而說明傳統上僅僅考慮一次地震動作用的建築物震害預測是不合理的：即使在同震級組合的兩次地震作用下，前震主震型、主震餘震型地震對結構物產生的破壞作用也是不盡相同的；對結構物進行靜力彈塑性分析的方法（ push - over方法）簡便實用，並能較準確地反映大震下結構的一般性能和反應，再一次的證明了該方法具有廣闊的發展前景；根據前人的研究成果，在本文的最後，簡單的介紹了一些結構物抵禦多次地震破壞作用的方法，並給出了泉州市規劃區內鋼筋混凝土框架結構群體震害預測的結果。分享友人