約束收縮 的英文怎麼說

中文拼音 [yāoshùshōusuō]
約束收縮 英文
restrained contraction
  • 約 : 約動詞[口語] （用秤稱） weigh
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 縮 : 縮構詞成分。
  • 約束 : keep within bounds; restrain; bind; bound; boundage;tie; restraint; restriction; engagement; repr...
  • 收縮 : 1 （由大變小; 由長變短） contract; shrink 2 （緊縮） concentrate one s forces; draw back 3 take u...
  1. But this kind of constringency transform because of its inner part not even stress and all control functions exist with exterior, and make concrete produce to pull - stress and pull - strain

    而這種收縮變形又由於其內部應力不均和外部約束作用的存在，使混凝土產生過大的拉應力和拉應變。
  2. The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete

    研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。
  3. This paper analyzes the influence of sra on the shrinkage - cracking property of hpc by designing five check - up experiments including desiccation - shrinkage, autogeous shrinkage, flat - restraint, anti - chloride ion penetration and ultimate tensile strain

    摘要設計了乾燥收縮、自收縮、平板約束、抗氯離子滲透性以及極限拉應變等5種試驗方法來檢驗減縮劑對高性能混凝土收縮開裂性能的影響。
  4. The results of experiment on the relationship between tensile strength, shrinkage, self - desiccation shrinkage and flat restraint cracking show that sra ' s physical shrinkage - reducing effect and ea ' s chemical expansion effect greatly enhance the volume stability of concrete and reduce the probability of early - cracking

    對減縮劑與膨脹劑抗拉強度、干縮、自乾燥收縮及平板約束開裂的試驗結果表明： sra的物理減縮作用及膨脹劑的化學膨脹作用，大大提高了混凝土早期的體積穩定性，降低了早期開裂的概率。
  5. This thesis investigated and researched on non - loaded crack, especially those caused by thermal - shrink, and analyzed the thermal - shrink stress of beam, slab and continuous - wall, found that according data of civil and overseas offered thermal - shrink calculating formula without considering effect of factors, such as the cement quantity, using of aruhuesiru, aggregate size and quantity of sand, which made the result data smaller. in addition, there are not enough construct measure in code

    本文對非荷載裂縫，特別是溫度?收縮裂縫進行了調查研究，並對兩端或四周約束的梁、板和底部約束的地下連續墻進行了收縮應力分析，發現國內外有關文獻給出的收縮計算公式沒有考慮泵送商品混凝土的水泥用量、外加劑使用、骨料粒徑和砂用量等因素的影響，計算出的混凝土收縮量往往偏小；另外， 《規范》中針對溫度?收縮裂縫的構造措施不足。
  6. A robust model predictive control method is presented with an appropriately constructed robust contractive set as the terminal set of its optimization problem and with the cost function formulated from the gauge function of this set regarding state variable

    以魯棒可控收縮集作為預測控制在線優化問題的終端約束集，並用基於該集合的尺度函數構造成本函數，從而得到一種基於線性規劃的魯棒預測控制方法。
  7. Consequently, in order to optimizing the saving behavior and harmonizing the economy development, it is essential that ( 1 ) to perfect the price system of farm produce in order to improve the level of income of rural residents ; ( 2 ) to safeguard the right of land and social security to reduce the uncertain anticipation ; and ( 3 ) to reconstruct china ' s agricultural credit system to release the restriction of fluidity. the main innovation points in this thesis are as the following. the analysis framework of saving behavior of rural residents has been put up

    因此，為了改善中國農村居民儲蓄行為，加強宏觀經濟調控，必須完善農村市場價格調節機制，保證農村居民收入的穩定增長；為農村居民提供相應的社會保障制度，降低其對未來收入特別是支出方面的預期尤為重要；加強農村公共物品市場體系建設，縮小城鄉以及地區間的收入差距；政府應當重點考慮規范正規金融市場與強化農村正規信貸市場，解決農村居民的流動性約束問題；幫助農村居民確立合理的消費期望，培養農村居民把握消費的自主意識及合理進行消費決策的能力。
  8. Standard test method for restrained expansion of shrinkage - compensating concrete

    收縮補償混凝土的約束膨脹性的標準試驗方法
  9. To idiographic institution, the main causes of the debts forming are as follow : the finance rights and affair rights are digit in the process of the finance and tax system, the finance rights are up collecting, and the affairs rights are down moving, the finance gap formed in the process of the finance and tax system, the comparative economic shrink in the anaphase country reform, the finance ingathering became fewer : the political and the administration system reform is disjoint to the economic system reform, the village and town government financial action is lost echo obligation, the expenditure break through the budget, and so on, otherwise, the country financial system reform is lag, the invests are becoming bad for the country government intervention to economic field, the country government action is short of efficient criterion, cut down the centre transferring geld to the farmers and delay to carry out the legal payment ; the effective supervision to the loan is short of about national to the non - financial machine, and so on, so the debts form at last

    但從根本講，還是制度的原因，是國家通過制度的安排來對利益進行重新分配，導致鄉鎮政府財政收入短缺，產生債務需求，最終形成債務。從具體的制度上看，主要有:財稅體制改革中的財權與事權的錯位，財權向上集中、事權不斷下移;農村稅費改革產生財政缺口;農村改革後期出現的經濟相對萎縮，財政收入減少;政治制度和行政管理制度改革與經濟改革脫節，鄉鎮政府財政行為失去應有的約束，導致開支突破預算等等，產生債務需求。另外，農村金融體制改革的滯后;鄉鎮政府對經濟領域的高度介入，出現經濟投資虧損;政府行為缺乏有效規范，截留老百姓的轉移支付款項、拖延履行法定支付義務;國家對非金融機構借貸行為缺乏有效監管等等，產生債務供給。
  10. In inertial confinement fusion, a variety of fluid instabilities can destroy the symmetry and integrity of the capsule, and even fail the ignition. the understanding of the growth of perturbations is of extreme important for achieving the ignition and high gain

    在慣性約束聚變內爆過程中存在各種流體不穩定性，它們能夠破壞靶丸的對稱性和完整性，使得點火失敗，因此深入地理解收縮內爆過程中流體不穩定性的發展規律，對于實現點火與高增益聚變是至關重要的。
  11. The original emm is adjusted. the new emm not only retains the simple expression, but also has a satisfied precision for calculating the restraining stress of the scc walls. the shrinkage compensation coefficient y is proposed for quantitatively estimating the effectiveness of die expansion at early age compensating the shrinkage at later stage

    基於以上認識，修正了原有的等效模量法，將總約束應力表示為早期膨脹和後期收縮兩個單調變形過程引起的分項應力之和，在保留其簡單形式的同時，使之在容許誤差下，適用於補償收縮混凝土墻的約束應力計算。
  12. For the walls poured by ordinary concrete, the emm and ttm obtain the same qualitative conclusion, despite of some discrepancies in the specific value. but for the walls poured by the scc, the restraining stress calculated by the emm is remarkably smaller than that by the ttm. in other words, the emm results shows that the shrinkage compensation technology can take place the measures of setting dilatation joints, while the ttm results indicates that, though the restraining stress is decreased, the decreased amplitude is inadequate

    對計算結果的比較和分析表明，對普通混凝土墻，結果的具體數值有差異，但反映的定性規律相同；對補償收縮混凝土墻，結果差異巨大，等效模量法認為補償收縮技術可實現無縫設計，而時程方法在承認補償收縮技術可減小約束應力的同時，認為應力減幅還不足以實現無縫設計。
  13. This paper studies the theoretical disadvantages of the effective modulus method ( emm ) for calculating the restraining stress of the walls restrained by basement, especially those adopting the shrinkage compensation concrete ( scc ). to avoid these disadvantages, a new time - tracing method ( tim ) is proposed, and base on its analysis results, the effectiveness of the scc for the cracking control of the walls is revisited

    本文研究了在計算基礎墻（尤其是補償收縮混凝土澆築的基礎墻）的約束應力時，等效模量法存在的理論缺陷，提出了更為完善的時程方法，並基於時程方法的計算結果，對補償收縮混凝土在基礎墻中的控裂效能進行了重新評價。
  14. According to the design theory of the cable - stayed bridge and to the feature of the cantilever construction the authors propose a construction control method called optimum completion state method ( ocsm ) for rc cable - stayed bridges in the proposed method, the optimum completion state is regarded as the final target of the construction control, and the optimum construction state at each construction stage is taken as the technical route the key of the method is to properly choose or adjust the cable forces the objectives function of optimization is to minimize the elevation error of the girder under the constraint condition that the internal forces ( bending moments ) of the girder are bounded the optimization variables are the cable forces on the basis of the above principles, a optimum model for a construction step is established and cable force adjustments can be found for each construction step in this model, the creep and shrinkage effects of concrete have been considered a bridge example is given which shows that the final state of the bridge is very close to the design aim and that this method is much better than the so - called double - control method the example is a good illustration of the soundness and practical value of the proposed method

    根據現代斜拉橋結構設計理論和懸臂施工方法的特點，提出了以最佳成橋狀態作為施工控制的最終目標，以實施最佳施工階段為技術路線，以索力調整為核心內容的斜拉橋施工控制理論，簡稱為最佳成橋狀態法；以斜拉橋主梁標高誤差最小為目標函數，以主梁內力（彎矩）為約束條件，以索力為優化變量，建立了最佳施工階段的索力調整計算模型；推導了考慮徐變收縮效應的索力調整計算公式；用最佳成橋狀態法對一實橋工程進行了施工控制全過程計算研究，得到的成橋狀態與設計目標相當接近，優于該橋以「雙控」為控制目標的實測結果，有力地證明了本文方法的正確性及其工程實際價值
  15. The problem is then fed to a nonlinear programming routine to solve for all parameters. the flight dynamics model with yawing motion of uh - 60a is given, scale factors of state variables and control variables are applied based on the consideration of algorithm convergence. then, the optimization of trajectories is expressed as optimal control problem with a performance index constrained by helicopter performance limits, faa regulation and so on

    首先，建立帶偏航運動的直升機點質量模型，然後對狀態變量和控制變量進行無量綱處理，因為狀態變量和控制變量量值相差較大，這使得優化演算法收斂效果變差，所以需要選擇適當的縮放因子，最後把直升機單臺發動機停車后的飛行軌跡表示成一個最優控制問題，即在考慮直升機性能限制和far規范后，指定一個優化性能指標，選擇合適的路徑約束，然後再解最優控制問題。
  16. After 1989, the increase of demand slowed down and facing the complexion of low degree of industrial concentration of product market and financial strain of medi um and small - sized enterprises caused by the circulating trap of " credit squeeze - - - bad loan ", the advantageous enterprises " " wallow in money ", specifically, those listed companies that could finance from the stock market, began to take predatory pricing strategy in succession and tried to enlarge market share and obtain high return by squeezing medium and small - sized enterprises out of the market after 1998, the vicious circle of deflation and " credit grudging " of banks in product and credit markets, overcapacity, the difficulty of retreating of loss - incurring enterprises in some industries from the market for institutional reasons and over - competition in some industries, led to the incessant decrease of enterprises " global income, persistent increase of rate of debts and constant rise of ratio of bad assets of banks, which further intensified the vicious circle of deflation and " credit grudging " of banks

    如在改革開放初期，在產品市場需求旺盛和信貸市場預算軟約束的情況下，各類企業的最優決策就是採用高負債、高擴張的「負債的有限責任效應」策略來搶占市場並獲得高回報； 1989年以後，需求增速開始放緩，面臨產品市場產業集中度較低和信貸市場「信貸緊縮-不良貸款」循環陷阱導致的中小企業資金緊張的局面， 「錢袋鼓鼓」的優勢企業（尤其是那些可以通過股票市場融通資金的上市公司）紛紛採用掠奪性定價策略，試圖通過把中小企業擠出市場來擴大市場份額並獲得高收益； 1998年以後，產品市場和信貸市場形成了通貨緊縮和銀行「惜貸」惡性循環的狀況。產品市場上部分行業生產能力嚴重過剩，且由於體制等原因導致虧損企業無法退出，因此這些行業中出現了過度競爭的現象，企業總體收益的不斷下滑、負債率不斷提高以及銀行不良資產率的持續上升，又進一步加強了通貨緊縮和銀行「惜貸」的惡性循環。
  17. On one hand, the stress in mass concrete is caused because of the difference between internal temperature and external one. on the other hand, with the concrete solidifying, the tensile stress will appear due to concrete ' s shrinkage restrained by base rock

    大體積混凝土一方面由於內外溫差而產生應力，另一方面，由於混凝土的凝固，收縮變形受到約束，混凝土會產生拉應力，一旦溫差引起的應力和收縮變形引起的應力超過同齡期混凝土的極限抗拉強度，混凝土就會產生裂縫。
  18. Shrinkage deformation is a driving force to stress generation and cracking in early concrete, whereas the occurrence of cracking depends on the restraint condition

    摘要收縮變形是混凝土早期開裂的驅動力，然而是否會發生開裂還與約束條件密切相關。
  19. All concrete structures are exposed to volume changes caused by hydration reactions in the early age. if the volume changes are restrained, stresses is generated which will cause cracking when it overcomes the tensile strength. as the mechanical properties of early age concrete vary with time, especially the creep degree depends on the time elapsed and the time at loading, to calculate the stress of concrete structure is a complex nonlinear problem. the finite element method ( fem ) can take account of the evolution of the stiffness properties, the development of thermal strain, creep, shrinkage and so on. in this paper, a general approach for numerically simulating this type of behaviour is presented firstly. then, how to solve this problem is introduced by the general finite element software ansys using the initial stress method. finally, a detailed description of an example calculation that demonstrates the potential of the numerical simulation strategy follows

    早期混凝土由於水化反應都會產生體積變化.如果體積變形受到約束就會產生應力，一旦超過混凝土的抗拉強度就會產生裂縫.由於早期混凝土的力學性能是隨時間變化的，特別是徐變，它不僅與加載時間有關而且同時隨齡期而變化，因此計算早期混凝土結構應力是較為復雜的問題.有限單元法不僅可以考慮混凝土剛度的變化，而且可以考慮溫度、徐變、收縮等因素.本文利用初應力法對通用有限元軟體ansys進行了二次開發，通過工程實例計算了高層建築地下室側墻早期混凝土應力的變化過程，並提出了相應的抗裂措施
  20. Based on that, the reason for producing cracks and the calculation must be analyzed. especially the dissertation expounds the contract cracks in out restriction

    基於此，首先分析了裂縫產生的原因及裂縫控制計算，特別是對外約束產生的收縮裂縫進行了詳細分析。
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