pre-displacement 中文意思是什麼
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Through the calculating example results and the comparisons with other calculating theories, it is proved that the calculating formulas of the combined geometry curve theory is valid, practical and accurate. it can be used in the calculation of line shape at the preliminary design, and can meet the engineering need. ( 3 ) this thesis researches systemically on the calculating theory of the suspension bridge ’ s cable system, including calculating design line shape and internal force, erection line shape of cable and pre - displacement of saddle without loads, the fixed position for erecting cable and amendatory method of cable ’ s unstressed length
通過算例驗證了混合線形理論公式的實用性和正確性，並且與其它計算理論的結果比較，證明公式有足夠的精度，可用做初步設計中主纜線形的計算，能夠滿足工程的需要; （ 3 ）對自錨式懸索橋主纜系統計算理論進行了系統研究，包括成橋線形和內力計算、空纜線形和內力計算、鞍座預偏量計算、索夾安裝位置計算和索鞍處主纜無應力長度修正方法。 -
Secondly, calculation theory of construction for suspension bridge is presented under the ideal condition of dead load design. linetype change stiffness of cable and slip stiffness of supporting points are deduced based on segmental catenary theory. then numerical analysis method through sgkz2000 software are introduced in detail about calculating design linetype for suspension bridge, unstressed length of cable, erection linetype of cable and pre - displacement of saddle without loads, erection linetype of wire strands, the fixed position for erecting cable band and linetype of lifting stiffening girders
其次，根據懸索橋恆載設計理想狀態建立了懸索橋施工計算原理；以分段懸鏈線索理論為基礎，推導了懸索的線形變化剛度和懸索支點的滑移剛度；介紹了懸索橋成橋設計線形計算、吊索無應力長度計算、空纜線形與預偏量計算、絲股架設線形計算、索夾安裝位置計算和加勁梁吊裝線形計算的具體方法、數值演算法及軟體sgkz2000的計算模塊的實現。 -
This paper also presents the methods of controlling unstressed length of cable, pre - displacement of saddle, anchor span tension, erection of wire strands, the fixed position for erecting cable band and cable length. determination and control approach of displacement of saddles during cable erection are also introduced. at the same time, the change course of linetype during construction period for suspension bridge is analyzed
再次，介紹了懸索橋的施工控制內容與方法，利用軟體sgkz2000對多座懸索橋進行了施工計算，提出本文關于懸索橋的主纜無應力長度控制、索鞍預偏量控制、錨跨張力控制、絲股架設控制、索夾安裝位置與吊索長度控制的方法；介紹了吊梁階段鞍座頂推量的確定與控制方法，分析了施工階段懸索橋的線形變化過程。 -
These measures included the slope horizontal displacement monitor, the supporting structure swag monitor, the subsidence monitor, the pre - stress of anchor monitor, the ribbed beam steel stress monitor. we monitored the whole process and got feedback information in time, so the trend and development of slope " s displa
在施工過程中，我們採取了邊坡穩定性安全監測措施，主要包括邊坡水平位移觀測及支護結構撓度觀測;沉降觀測;以及錨桿應力監測;助梁鋼筋應力監測等。進行全過程的檢測並及時反饋信息，隨時掌握邊坡的位移趨勢與發展。 -
The influences of the pre - stress on the working characteristic of the actuator are analyzed by the measurement of displacement. a numerical current source with alternative working mode and current range is manufactured to provide program - set steady current for the drive coil
單晶材料消除了晶界對疇壁移動的影響，具有很好的低場下的位移輸出能力，這為微位移致動器的研製奠定了很好的基礎。 -
Then the noise is removed by means of the variance that is estimated directly from the median of the noise. finally, an auto - detection is made for the motion displacement from the difference image undergone the above pre - processings
本文給出的方法以散射圖去除光照影響和靜止背景，用噪聲的中位數直接估計其方差，從而去除噪聲，檢測出由運動引起的變動，最後自動檢測運動距離。 -
A predigested car model and a reasonable bridge model were presented after the bridge structures and the colliding characters were analyzed. the stress and the displacement of the concrete, bar, pre - stress bar changing with time were presented. the stress of the whole bridge at the time of the contact and the deformation of the whole bridge at the end of the contact are obtained
採用美國ansys公司的有限元軟體ansys ls - dyna對碰撞過程進行數值模擬分析，得到了撞擊點附近混凝土、普通鋼筋以及預應力鋼筋的應力及位移隨時間的變化規律，同時得到了全橋在碰撞后瞬間的應力分佈規律和碰撞結束前全橋的變形規律。 -
The emphasis is given on the studying of the horizontal displacement on the retaining structure consist of piles and anchors, which is a frequent type of retaining structure. it is founded that the rigidity of anchors and magnitude of pre - stress are the main factors which influence the deformation of retaining structures. the optimal design method on pile - anchor systems is presented
樁錨支護是一種常見的基坑支護模式，本文以樁錨支護結構水平位移為重點，對支護結構剛度、支撐剛度與預應力、支護樁入土深度等對樁頂水平位移的影響進行了分析，指出在樁錨支護體系中，錨桿支撐剛度及預應力對基坑變形的影響最為明顯，並通過工程實例加以驗證。 -
This software is composed of three modules : the pre - processing, analysis and calculation and post - processing. in the pre - processing, it includes automatic generation of structural meshes, adding contraints and loads and so on ; in the analysis and calculation, the wave - front is used to calculate and establish data files related ; in the post - processing, strong and visual function of vc + + is utilized to display structural deformation graph, contours as well as color cloud pictures. in this last processing, deformation graphs are divided into two types - boundary deformation graph and entire deformation graph in order to show deformation condition entirely ; contour graph comprises isodisplacement graph and isostress graph ; color cloud picture comprises cloud picture of displacement and that of stress, whose drawing principle is isoparametric mapping method
該軟體由三個模塊組成，即前處理、分析計算和后處理。在前處理模塊中，主要包括結構網格的自動剖分、施加約束以及載荷等；在分析計算模塊中，採用波前法計算並形成有關數據文件；在後處理模塊中，利用vc + +強大的可視化功能自動整理計算成果並顯示結構變形圖、等值線圖和彩色雲圖。其中，變形圖分為兩種?外框變形圖和整體網格變形圖，以便能綜合顯示變形情況。 -
When applying genetic algorithm for optimal design of pre - stressed steel structure, ways of penalty coefficient is adopted for resolving stress and displacement restrains in this paper
在應用遺傳演算法進行預應力鋼結構的優化設計時，本文對于預應力鋼結構的應力和位移約束的處理是採用了罰系數的方法。 -
This system provides pulse signal and direction signal to step motor driver by computer ’ s controlling step motor control card, and makes motor and guage ’ s pointer rotate. computer gets the micro displacement measured by grating measuring system via rs232 serial port, and acquires guage ’ s image by high precison ccd camera, then processes the guage ’ s image by software, including pre - processing, graying, binarization, thinning and hough transform, so as to recognize the position of guage ’ s pointer, finally calculates all kinds of precision on basis of algorithm established by national detecting rules of gauges
本系統通過計算機控制步進電機控制卡來給出步進電機驅動器需要的脈沖信號和方向信號，進而帶動電機驅動儀表指針轉動，計算機通過串口實時採集光柵測量系統的微位移信號，並且通過高精度ccd攝像機實時獲取表盤圖像數據，同時通過計算機軟體實現表盤圖像處理，包括預處理、灰度化、二值化、細化和hough變換等，最終快速識別出表盤指針的位置，並根據國家表類檢定規程所制定的演算法檢定出指針式儀表的各種精度。 -
Furthermore, the pressure of soil can be exerted on anchor boards, so the stressed anchor can balance the pressure of soi1 through the anchoring. before the trench displaces, the anchoring pressure begins to work through the exertion of pre - stress. meanwhile, the stress pressure of anchor changes and is adjusted through shot concrete and its stressed steel. so the whole supporting system, which is similar with the pile - anchor supporting system, is finally formed, and it can limit the displacement of trenches
錨桿的錨固力在基坑出現位移前，通過雨應力的施加即得以發揮作用，錨桿的受應生變化並通過噴射硅及其中的受力筋得以調整，從而形成一個與樁一錨結構近似的整體支護系統，起到限制基坑位移的作用。 -
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。 -
However, the pre - stressed anchor cables on the upper part of the piles make the whole stabilizing system like freely supported beams or some other h yperstatic structures. with the number of restraints increasing, it makes much easier to control the displacement of the piles and to reduce the bending moments and shearing forces along the piles to a certain extent
增加預應力錨索后，整個結構體系接近簡支梁或其它超靜定結構，隨著約束的增加樁身的位移控制變得容易許多，同時樁身內力值也在一定程度上減少較多。 -
Corrosion of metals and alloys - stress corrosion testing - preparation and use of pre - cracked specimens for tests under rising load or rising displacement
金屬和合金的腐蝕.應力腐蝕試驗.在加大荷載或加大位移條件下試驗用預裂樣品的制備和使用 -
Corrosion of metals and alloys - stress corrosion testing - preparation and use of pre - cracked specimens for tests under constant load or constant displacement
金屬和合金的腐蝕.應力腐蝕試驗.恆定負荷或恆定位移條件下試驗用預破裂試樣的制備和使用 -
It performs a large amount of physical simulation experiment using the multi - function displacement equipment which is imported from american temco company and summarizes the effecting rule of the injected alternating slug size on the displacement efficiency during the alternating injection of gas and liquid. it uses orthogonal method to study the set and type of pre - slug and post - slug and their effect on the displacement efficiency of foam flooding and optimizes the main and sub - slug size so as to decrease the cost while keeping a high displacement efficiency
通過從美國temco公司引進的多功能驅替設備，所做的大量的物理模擬試驗，總結出了氣液交替注入時，注入交替段塞的大小對驅油效率的影響規律，利用正交設計法研究了前後段塞的設置與否及種類對泡沫復合驅驅油效率的影響程度，還對主次段塞的大小進行優化，在保證較高的驅油效率的前提下降低成本。
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