無載荷特性 的英文怎麼說

中文拼音 [wúzǎihétèxìng]
無載荷特性 英文
no-load characteristics
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 荷 : 荷名詞（蓮） lotus
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared

    本文在已有研究成果的基礎上進一步開展了以下幾方面的研究： （ 1 ）在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上，提出了廣義雙層地基模型的概念，並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中； （ 2 ）根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式，編制了程序，調試通過並驗證了其正確性； （ 3 ）通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降，矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算，探討了雙層地基中的附加應力與沉降特性； （ 4 ）應用本文的層狀地基體系理論對一個工程實例進行了計算分析，並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析，結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。
  2. The low - cyclic reversed loading tests of two unbonded partially prestressed concrete frames with different ppr have been carried out. the aseismic behaviors are analyzed and compared, with emphases on failure mechanism, hysteretic property, displacement ductility, energy - dissipation capacity as well as stiffness degeneration, etc. the results show, when designed rationally, the unbonded partially prestressed concrete frames can form beam hinge energy - dissipation machine and total destroy mechanism

    通過兩榀不同預應力度的無粘結部分預應力混凝土扁梁框架結構的低周反復荷載試驗，分析研究了無粘結部分預應力混凝土扁梁框架結構的破壞形態、滯回特性、位移延性、耗能能力、承載力及剛度退化等抗震性能。
  3. The main contents include inherent vibration feature, stability characters, effect of geometry non - linearity and the tower obliquity, impact of system different temperature and local different temperature etc. the result in the article will provide the design references for the project of no back - stays & inclined pylon cable - stayed bridge

    本文的主要工作有:介紹無背索斜塔斜拉橋的自振特性，全橋模型在荷載下的穩定性特徵，結構幾何非線性的影響，斜塔傾角對結構的影響，體系溫差和局部溫差對結構的影響等。
  4. Standard test method for compressive properties of polymer matrix composite materials with unsupported gage section by shear loading

    剪切荷載法測定帶無支撐標準截面的聚合母體復合材料抗壓特性的標準試驗方法
  5. This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization

    半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。
  6. The results of the studies show that, when fine medium belt, proper load and velocity are selected, the transmission performance of gear with meshed medium belt is superior to invloute gear ' s ; furthermore, it can be lubricated with water, and it ' s effects are almost fine to the lubricant effects with oil. so we can realize a " green lubrication " type of gear transmission

    試驗結果表明：選擇適當的介質帶材料和一定的載荷速度條件，帶式嚙合介質齒輪的傳動性能優于漸開線齒輪，並可用水進行潤滑，幾乎達到在油潤滑條件下的效果，實現一種節能、無污染的綠色潤滑齒輪傳動；相對于漸開線齒輪，帶式嚙合介質齒輪具有顯著的減振降噪作用，動態特性優越。
  7. In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.

    在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。
  8. As for dam ' s dynamic properties in condition of elastic foundation, author uses mapping infinite element, which can reflect displacement ' s property of diminishing in semi - infinite materials. through exchanging data between three analytic software - matlab, ansys, fortran, dynamic properties of dam is computed in condition of elastic foundation. and then the dynamic displacement curve is obtained under the load of earthquake with the method of newmark - b

    對于彈性地基情況下壩體的動力特性，作者採用了能夠反映半無限域介質中位移衰減特性的映射無限元，通過matlab 、 ansys 、 fortran三種計算軟體之間數據交換得出了彈性地基下壩體的動力特性，並通過自編newmark -法程序計算了壩體在地震荷載作用下動位移響應。
  9. Compression dispersion - type anchor can be mainly classified into two categories, one of which is that, plastic coated strands in different length are respectively passed through their own bearing bodies and pre - bent as their midpoints to be t he shape of " u ", then forming several totally unbonded strand loops, i. e. unit anchor tendon. as the research object in this paper, study is performed on the anchor holding capacity, load - displacement behavior, displacement of the fixed anchor length, strain and bond stress distribution, and the removability of anchor tendon, furthermore, with the aid of analytical solution, the distribution of the bond stress is calculated and analyzed, based on the results of test and analytical solutions, design method is provided in this paper

    壓力分散型錨索主要有兩種結構型式，本文是以將不同長度的無粘結鋼絞線分別繞過不同的承載體彎曲成「 u 」形而組成各個單元錨索體這種型式為研究對象，對其承載力、荷載位移特性、錨固段位移特徵、應變與粘結應力分佈特徵以及錨索體的可回收性能展開研究，並藉助于理論分析研究其粘結應力分佈狀態，然後在此基礎上提出了壓力分散型錨索的設計計算方法。
  10. These good - sized structures will happen distortions in different degree when they under diversified loads and external envitronments. however, these distortions are very faintness in early time, and they have the characteristics as big range and long distance, too ulterior to be measured, real - time, distributed et. al

    這些大型建築物在各種荷載和外部環境作用下會發生不同程度的變形，但由於這些變形在早期很微弱，具有范圍大、距離長;監測部位隱蔽，不便於量測，或者根本無法量測;實時性;分散式等特點，致使傳統監測手段難以勝任。
  11. Secondly, considering the complexity of the analysis of inclined - loading pile, nonlinear finite element method is adopted to calculate the internal force and displacement of pile group under inclined loads, with the concept of equivalent width presented to simplify 3d problems into 2d problems. and a program is developed as well, which is able to consider the continuity, elastic - plasticity and layered characteristic of soil around the pile shaft. besides, the interactions among pile, base slab and soil are considered in this program and contact surface element is used to simulate slipping and crazing between pile and soil, or between base slab and soil under loads. then, the non - tension analysis is proposed, to reflect the low - tensile property of soil and concrete

    在此基礎上，針對傾斜荷載下群樁基礎分析中的復雜性，提出採用非線性有限元對傾斜荷載下群樁的內力及位移進行分析，應用樁的等效寬度概念將空間問題簡化為平面問題考慮，並開發出能考慮樁周土介質連續性、彈塑性、分層性等因素的傾斜荷載下群樁內力及位移分析的計算機程序，並在程序中考慮了樁、土、承臺的相互作用，提出了採用接觸面單元來考慮荷載作用下樁與土體及承臺與土體間的滑移、開裂；並在此基礎上，提出了傾斜荷載下群樁基礎的「無拉力」分析方法，可有效地反映土體及混凝土材料的低抗拉特性。
  12. Considering the behaviors of unbonded prestressed concrete beams and steel reinforced concrete columns, a kind of nonconforming beam - column element was constructed and the analysis precision was improved. loading and reloading paths were introduced into the constitutive relationship of concrete. it is helpful to the analysis program to trace the full - range mechanical behavior of structures including the descending part and the hysterisis characteristic under cyclic loading

    考慮無粘結預應力混凝土梁、型鋼混凝土柱等結構構件的受力特點，構造非協調樑柱單元，提高了分析精度；混凝土的本構關系中，引入卸載路徑和再加載路徑，使得分析程序可以追蹤包括下降段在內的結構全過程力學行為，以及反復荷載下結構的滯回特性。
  13. Seamless steel tubes for pressure purposes - technical delivery conditions - part 1 : non - alloy steel tubes with specified room temperature properties

    壓力載荷用無縫鋼管.交貨技術條件.第1部分:有規定室溫特性的非合金鋼管
  14. The major research of this paper is that : 1, it is analyze the displacement response of the elastic - foundation beam by the static loads and the moving loads, the dynamic response of winkler beam, analyze the influence of the sleeper in the dynamic response of the rail system. and compare the result with the experiment formulation. it is concluded that the continuous model only fit for the lower moving velocity of loads

    本文主要進行了以下幾方面的研究： 1 、首先對靜力荷載作用下彈性地基梁的位移反應、文克爾梁模型的動力響應，及枕木在軌道系統動力響應中的作用進行了分析，並與傳統採用的經驗公式進行對比，以此分析了連續性模型只適用於荷載移動速度較低的情況下，在速度較高的情況下，特別是接近臨界速度時，連續性模型是無效的。
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