止裂溫度 的英文怎麼說
中文拼音 [zhǐlièwēndù]
止裂溫度
英文
crack arrest temperature-
In the dam foundation restraint area, mgo can be mixed into concrete to prevent dam longitudinal crack. research on autogenous volume change of rcc mixed with mgo, and research on thermal stress compensation of darn foundation prove that rcc mixed with mgo plays a role in dam crack control
在材料措施方面，深入研究高碾壓混凝土壩基礎約束區採用外摻mgo措施，利用其微膨脹性能補償壩體降溫過程中產生的溫度應力，以防止大壩縱向裂縫的發生。The proper interpass temperature is required to prevent cold and hot cracking as well as the proper selection of welding filler material, to produce the proper creep resistance and toughness
需要適當的程間溫度和正確選擇填充金屬材料來防止冷熱裂縫，產生適當的蠕變阻力和韌性。Positive electrode and negative electrode that execute spanning crack prevention are simulated as the source point and merged point, so the temperature field owing to the concentration of current around the crack tip is educed at the moment when the current is switch on
將實施跨越止裂時的正、負電極比擬為電流場中的源和匯，從而導出了在瞬間電流作用下，裂紋尖端附近區域因繞流而形成的溫度場。Therefore well controlling of difference in temperature and temperature strain are important measures on concrete cracking control
因此，控制好內外溫差和溫度變形是防止大體積混凝土出現裂縫的重要方法。This dissertation mainly has a research on the control of temperature stress and temperature strain in super thick mass concrete planceer of high - rise building. because the cracks of super thick mass concrete planceer of high - rise building is mainly caused by temperature stress and temperature strain, we have an emphasis research at the change of the temperature stress of super thick mass concrete planceer, study the construction technique how to prevent mass concrete planceer from appearing the crack ' s, and provide a viable fulfillment experience
本文以高層建築超厚底板大體積和混凝土結構施工中的溫度應力和溫度變形控制為研究對象，針對高層建築超厚底板產生裂縫的主要原因是溫度應力和溫度變形這一特點，重點研究底板大體積混凝土溫度應力產生和變化的機理，探討防止底板大體積混凝土出現裂縫的施工技術，提供切實可行的實踐經驗。The technique of dam construction by weakly expansive concrete added with magnesia ( wecam ) is a new technique developed in china, in which appropriate light - burnt magnesia is added to dam concrete when produced to generate a special delayed expansive stress to compensate shrinking stress due to decrease of temperature so as to prevent concrete cracks. it not only is in favor of simplifing the method of temperature control and an effective solution to the crack problem of concrete dam, but also simplify the technology of dam construction and bring down the project cost, further more, speed greatly up the construction of concrete dam
外摻氧化鎂微膨脹混凝土築壩技術是指在生產大壩混凝土時，摻入適量的輕燒氧化鎂，利用其特有的延遲膨脹補償混凝土壩的溫度應力，以防止混凝土壩產生的裂縫，這不僅有利於簡化溫控措施，有效地解決混凝土壩的開裂問題；而且簡化了施工工藝，降低了工程造價，大大了加快施工進展。The next this text is based on the appearance theories, according to the characteristics that the temperature dispersion of super thick mass concrete planceer of high - rise building primarily is an even difference in temperature and an even constringency, suppose the level shears are line with the displacement, adopting a big physical volume concrete of planceer in flexibility foundation for plank computing model, from theoretically deducing the difference in temperature of mass concrete contracting should basic formula of dint, and analysis the crack rule and the influence factor of mass concrete temperature contract, and bringing up the theory calculation method about temperature stress of mass concrete and the biggest whole method that sprinkle the length, at the same time according to basic formula of the temperature stress of mass concrete and the concrete construction experience, bringing five technique measures to prevent the temperature crack of mass concrete
其次本文以唯象理論為基礎，根據高層建築超厚底板大體積混凝土承受的溫差主要是均勻溫差和均勻收縮的特點，闡述了大體積混凝土溫度應力理論計算的簡化方法和最大整澆長度的計算方法，同時根據大體積混凝土溫度收縮應力基本公式和大體積混凝土結構施工經驗，提出了防止大體積混凝土溫度裂縫的五項技術措施。最後本文以廈門郵電大廈3 . 5m超厚底板施工為實例，從大體積混凝土溫度應力計算、混凝土保溫材料厚度計算、混凝土配合比的確定，鋼筋工程、模板工程、混凝土的泵送和澆築以及大體積混凝土內部溫度的監測和後期養護等方面進行了理論應用。The heat transfer and the restriction circumstance are simulated. the temper ature - time curve and the stress - time curve are obtained. because the later joint - filled slots are restrained strongly, in which the thermal stress is great, especially in the corner, in spite of a little temperature rise, some measures should be taken to prevent them from producing cracks
利用有限元前處理軟體vizicad建立了「 t 」形后澆帶模型，模擬了后澆帶的「熱環境」和「約束環境」 ，計算得到了后澆帶的應力和溫度發展曲線，發現雖然後澆帶的溫升不大，但受到的約束較大，因此產生較大的溫度應力，特別是在其拐角處，應採取措施防止裂縫的出現。It has been found out that using a prestressed concrete flat slab floor can decrease the thickness of the floor slab, improve forced property and service functions of the structure, and so as to save materials, reduce cost and prevent the cracks of shrinkage and temperature
採用預應力混凝土無梁樓蓋可以降低樓板厚度，改善結構的受力性能和使用功能，而且能節約材料，降低造價，防止收縮和溫度裂縫的產生。Tunnel vault and the surface of the side wall, play a firing prevention and heat insulation protecting roles, prevent the armored concrete reducing its intensity when the temperature rapidly heating up because of fire, avoid the tunnel from exploding and protect effectively the lining reinforcing steel bar not to lose supporting capacity so as to avoid the tunnel collapsing
隧道防火塗料塗噴在隧道內的拱頂和側壁的表面，起防火隔熱保護作用，防止隧道內鋼筋混凝土在火災中迅速升溫而降低強度，避免混凝土炸裂、有效保護襯內鋼筋不會失去支撐能力而避免隧道垮塌。Here aiming at temperature and traffic load factors, have a systemic study about strcture ' s stress distribution. plan is to make use of ansys to calculate pavement structure ' s distortion with full grade gravelly interlayer carefully through changing each layer ' s thickness and module. next, analysize stress among bottom of surface asphalt layer and top of semi - rigitidy base. lastly. make a conclusion : how to distrube stress and strain about the structure after adding gravelly interlayer
方法是採用ansys對加設級配碎石基層半剛路面結構進行多種參數模擬計算，通過改變結構材料厚度、模量等觀察基層和面層應力變化，研究碎石基層怎樣調整結構應力而防止了溫度和行車荷載產生的過大拉應力，避免基層產生內部裂縫。Crack arrest temperature
止裂溫度In these years, with the increase of the number of high - rise building in cities, temperature cracks of basement wall draw more and more public attentions. how to solve this problem has become a difficult nut in the engineering practice and needs urgent solutions to meet engineering demands
近年來，隨著高層建築的興建，地下室側墻溫度裂縫這一問題越來越引起各方面的重視，如何防止高層建築地下室側墻開裂是工程界急需解決的難題。The theoretical result of temperature field in current - carrying plate is solved using the methods of complex function at spanning crack prevention
摘要用復變函數方法給出了導電薄板在跨越止裂時溫度場的理論解。This behavior will be helpful to decrease temperature gradient and to lessen surface thermal stress of concrete structure so as to prevent cracking of a structure
上述特性將有助於減小混凝土內部溫度梯度，對于防止水工混凝土結構表面裂縫起到良好的作用。Through project practice and many examinations, it is proved again that the temperature stress calculate formula provided in the text is fit for the fact, it is proved again that five technique measures to prevent the temperature crack of mass concrete provided in the text is useful
經過工程實踐表明，大體積混凝土溫度收縮應力計算公式是符合實際的，本文闡述的防止大體積混凝土溫度裂縫的五項技術措施是行之有效的。Based on the predecessor ' s research, we focus on the concrete of large volume at basement inside high building. firstly, we have developed a software called 3d - efp, which have good practice in temperature predicting, secondly, we have aslo managed to get a whole set of scientific & advanced technology to monitor the temperature inside the concrete
其次，在大體積砼水化熱溫度實時監測方面，我們經過多年的摸索與改進，研究出一整套科學的方法和先進的自動化技術，極大地促進了這類工程的「信息化施工」 ，通過預測與實測的緊密配合，採取一系列有效的措施盡可能控制砼溫度的變化，來達到防止溫度裂縫產生的目的。Abstract : combining engineering practices, the main reason for concrete crack during the construction in winter of the mass concrete with box foundation floor is analyzed, the key is temperature difference between insides and outsides. some measures to prevent concrete crack from occuring is put forward. these measures feasibilities by means of temperature difference computation, concrete tension stress checking computation, temperature recordings are validated
文摘:結合工程實際分析了箱形基礎底板大體積砼在冬期施工階段產生溫度裂縫的主要原因，提出了砼冬期施工的關鍵是防止產生溫度裂縫，對防止砼產生裂縫的主要措施進行了探討，並通過砼體內外溫度差的計算，砼抗拉強度驗算和測溫記錄驗證了這些措施的可行性分享友人