混凝土裂紋 的英文怎麼說
中文拼音 [húnníngtǔlièwén]
混凝土裂紋
英文
concrete cracks-
The research shows that the fractal theory can be used to describe quantificationally differentiate and anomalistic micro cracks of concrete that formed in injury evolution
研究表明，用分形理論方法可以定量描述和區分混凝土在損傷演化期間形成的極其不規則的微裂紋。Piezoresistivity of ecac may involve proximity effect, microcrack and the staggered arrangements of conductive pass - ways due to shear strength of aggregates
壓敏產生的原因是導電瀝青混凝土試件的壓縮鄰近效應、微裂紋和石料間的剪切力使部分導電通路錯位。Fractal effects on subcritical crack growth of concrete
混凝土亞臨界裂紋擴展的分形效應The compatibility and harmony among workability, mechanical grade and durability are optimized, with the ground of adjusting composition and dosage of fd - 1 ; after analyzing anti - freezing damage mechanism, it is concluded that temperature is main factor, which affects structure and property of concrete. after two processes of temperature - elevation of hydration heat and temperature - descent of cold - environment, there is original damage in concrete and its existence leads to temperature fields, as results in temperature damage on transition phase > aggregate and cement mortar of concrete
通過對負溫混凝土早期防凍分析研究認為，環境溫度對混凝土的結構形成及其性能的影響十分突出，水泥水化溫升和環境散熱降溫兩個過程導致混凝土結構內部產生不均勻溫度場，對過渡相、水泥砂漿以及骨料都能產生不同程度的溫度損傷，產生內部溫差應力裂紋，初始損傷也是不可避免的。But some problems with self - compacting concrete such as high slump loss and the difficulty of harmonizing the cohesiveness and the flowability should be solved. the theory of concrete mix design should also be perfected. in accordance with these problems, this thesis carry out such research works as follows to deal with them
然而，免振搗混凝土特別是高強超高強免振搗混凝土坍落度損失大，粘聚性和流動性難以統一以及易產生收縮裂紋的問題亟待解決；免振搗混凝土的配比設計理論也需要進一步地加以完善。Control of early crack on beam - and - slab construction with ready mixed concrete
商品混凝土梁板結構施工早期裂紋控制初探In the view o6f micro mechanics and fracture mechanics, the mechanism of crack generation of mass concrete is expatiated, thermal stress on the interface between aggregate and cement paste of concrete and crack forming and developing is analyzed and the disciplinarian crack developing with temperature is given
本文從微觀力學和斷裂力學的角度，探討了混凝土結構開裂機理，分析了溫變過程中混凝土骨料與水泥砂漿界面上的溫度應力以及界面裂紋的萌生和擴展，給出了裂縫隨溫度變化的擴展規律。When mass concrete forms, defects will produce such as some micro crack resulting from the different temperature between the surface and the inside. how this micro crack forms and develops is a very important subject hi materials
混凝土結構、尤其是大體積混凝土結構在澆築成形的過程中，由於受到內外溫度變化的影響從而使混凝土體內或表面形成細微裂隙等缺陷，研究細微裂縫（微裂紋）的形成與發展在混凝土材料學中是一項十分重要的課題。Crack control of pile cap mass concrete of sea - span bridge
跨海大橋大體積承臺混凝土裂紋控制Cause and prevention measures of fissure occurred on large volume concrete after moulds removed in high cold area
高寒地區大體積混凝土拆模后表面產生微裂紋的原因及防治措施Though great progress has been achieved on researches on the design theory, structural type, structure details and construction method of the composite bridge, there are still many problems, such as crack control of the concrete deck, influence of the connecting rigidity over the structural mechanical characteristics and mutual depende ncy between design and construction, need deeper researches for better solutions
對組合結構橋梁的設計理論、結構形式和構造細節、施工方法等方面的研究已經取得了很大進展，但仍然存在許多問題需要深入研究和完善，例如：混凝土板裂紋控制、接合剛度對結構受力性能的影響、設計與施工的依存性等。This paper, applying the electro - deposition technology, analyzes and studies the crack - blunting method of cfrc by finite element simulation ( fes ) and experiment
本文利用電沉積技術對碳纖維增強混凝土的裂紋尖端實施鈍化，從有限元模擬和實驗兩個方面分析研究了混凝土裂紋的止裂方法。Consequently time and cost can be saved greatly. ( 3 ) design method for controlling cracks in the negative moment zone of the continuous composite girder the crack mechanism of the concrete deck in the negative moment zone of the coniinuous composite girder, the relationship between the crack and the int
分析認為，採用中間支點升降法與調整混凝土板施工順序相結合的施工方法，不僅可以避免負彎矩區混凝土裂紋，還可以合理調整鋼梁和混凝土板的內力，並使端支點與中間支點反力更均勻，使組合梁橋的結構更加經濟合理。Nondestructive testing is a very important and difficult research lesson about the defect of concrete structures. this paper mainly measures the stress waves conveying in concrete structures and the depth of surface - opening cracks in concrete plates by using impact echo method after carefully reading a lot of articles about the state and the abroad of concrete nondestructive in the field and incorporating the special conditions on the laboratory
混凝土結構物的缺陷的無損檢測是一個非常重要而又非常困難的研究課題，本論文在大量參閱了國內外關于混凝土結構物無損檢測的研究資料后，結合本實驗室的具體條件，應用沖擊反射法集中對應力波在混凝土板塊內傳播速度和混凝土結構物內部開口裂紋深度的測量等一系列問題展開了研究。Then a model on electromagnetic emission relying on the extent of cracks is put forward. using this model, the amplitude of electrical field and magnetic field, the largest frequency are estimated
研究表明，混凝土隨裂紋的擴展產生幅值逐漸增加的電發射脈沖；混凝土隨材料組成不同在開裂時產生不同形式的電發射脈沖。Simulative investigation of fatigue crack growth at steel - concrete interface
鋼筋混凝土界面疲勞裂紋擴展模擬研究Fatigue crack propagation in partially high percentage fiber reinforced concrete
局部高密度鋼纖維混凝土疲勞裂紋擴展實驗研究A fractal description of crack propagation in high percentage fiber reinforced concrete under fatigue loading
高密度鋼纖維混凝土疲勞裂紋擴展的分形描述The proposed model - beam - particle model is validated to simulate some routine tests of concrete which including uniaxial compressive test and uniaxial tensile test to prove that the numerical model can effectively to describe the complete failure process caused by the initiation, propagation and coalescence of cracks. the influence of the meso - mechanical properties to the macroscopic failure behavior is discussed in this paper. the proposed model is employed to simulate the dynamic failure process of concrete under impact loading, and analyse the failure behavior of concrete with different impacting velocity
本文建立了混凝土的梁-顆粒數值模型，並利用該模型進行了混凝土在單軸壓縮和拉伸載荷作用下，混凝土從微裂紋的萌生、擴展、貫通直到宏觀裂紋產生導致破壞的全過程的數值模擬，探討了混凝土材料細觀結構對其宏觀力學行為的影響；利用該數值模型，模擬了鋼彈以一定的初始速率垂直侵徹混凝土圓板的動態過程，對計算結果進行了動畫顯示，並分析了不同鋼彈初始速率對混凝土圓板破壞形式的影響。( 2 ) the properties of gfrp reinforced polymer concrete beams and prestressed polymer concrete beams are tested by four point bending experiments, the result show : gfrp rods can be satisfied the stiffness request ; it ' s very necessary and effective to use prestressed beam to minish the defection, enhance the crazed load and reduce the width of the cracks
（ 2 ）通過對gfrp筋增強樹脂混凝土普通梁和預應力梁進行四點彎曲實驗，表明：利用玻璃鋼筋作為增強筋在強度方面是可以滿足要求的；對玻璃鋼筋施加預應力來減小撓度，提高混凝土的開裂強度，以及縮小裂紋寬度是非常必要也是很有效的。分享友人