grade of concrete 中文意思是什麼

grade of concrete 解釋
混凝土牌號
  • grade : n 1 等級，級別；階段；程度，標準，水平。2 〈美國〉（中小學的）年級；某一年級的學生。3 〈pl 〉 〈...
  • of : OF ＝Old French 古法語。
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. The cyclo - hoop effect which steel tubular has exert to the concrete shows the character of heterogeneous in the arch rib section, the same to the axial direction. the paper verifies the change of the material poisson ration and the concrete grade will make the cyclo - hoop effect obvious alteration, the change of the cyclo - hoop effect and the stress redistribution of the section produced by the shrinking and creeping of the concrete and the expensive concrete on the section

    在鋼管混凝土拱肋斷面上，鋼管對內填混凝土的環箍效應具有非均勻性，在拱軸方向上環箍效應也呈現非均勻性。驗證了材料的橫向變形系數、混凝土標號等參數的變化將引起環箍效應的明顯改變；混凝土的收縮、徐變和膨脹混凝土的應用導致鋼管混凝土的環箍效應發生變化並使截面的應力發生重分佈；並總結了其變化的基本規律。
  2. According to the recorded full process fracture curve, the paper calculated and compared the fracture toughness ( kic ), the fracture energy ( gf ) and crack tip opening displacement ( ctod ) of the different strength grade boulder concrete and crushed stone concrete, it is found that the maximal load ( fmax ) and the fracture toughness ( kic ) of boulder concrete and crushed stone concrete increase when the strength of them increases, so does the fracture energy of boulder concrete, but the fracture energy of crushed stone concrete does n ' t obviously increase when it ' s strength increases. the crack tip opening displacement ( ctod ) of all specimens chang less when the strength of concrete increases, so it is concluded that the location of the axle in the ligament of the specimens is relatively stable

    根據記錄的全曲線，計算了不同強度等級的卵石混凝土、碎石混凝土的斷裂韌度k _ （ ic ） 、斷裂能g _ f以及裂縫的尖端開口位移ctod ，比較了不同強度等級卵石混凝土及碎石混凝土的斷裂韌度k _ （ ic ） 、斷裂能g _ f以及裂縫的尖端開口位移ctod的關系，發現卵石混凝土、碎石混凝土的荷載峰值fmax 、斷裂韌度k _ （ ic ）隨強度增加而增加，卵石混凝土的斷裂能g _ f隨強度增加而呈增加趨勢，碎石混凝土的斷裂能g _ f隨強度增加變化趨勢平直，增勢不明顯。
  3. According to the load behavior and defection degrees of existed reinforced concrete bridge, the calculating modeles for normal section strength and bearing capacity for reinforced concrete bridge are established by the elasticity analysis and nonlinear analysis of grade stiffness degeneration

    根據既有鋼筋混凝土橋梁的受力特點和損傷程度，採用兩種方法：即《規范》法分析理論和分級剛度退化非線性分析理論，分別建立了既有鋼筋混凝土橋梁正截面強度計算和承載能力評定的計算分析模型。
  4. 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。
  5. The fuzy criterion of concrete structure freeze proof and durability grade in cold area

    寒區混凝土建築物抗凍耐久性等級的模糊判據
  6. Abstract : because the water - binder ratio of both high strength concrete and high performance concrete are very low, it bring about the following consequences such as : 1, the grade of cement strength would be a negligible symbol 2, the effectiveness of mineral admixture would be considerably improved 3, the high cohesion of the mixture and concrete " s shrinkage and creep would be changed etc. all these consequences should be well deliberated by the construction circles

    文摘:高強混凝土和高性能混凝土因其水膠比都很低，給配製與施工帶來如下現象：水泥標號的「標志」作用淡化，礦物摻合料的作用顯著改善，拌合物的高粘聚性、混凝土的收縮和徐變性能的變化等，這些現象都值得施工人員注意。
  7. Based on the principles of designs of self - compacting and light aggregate concrete mix, sclc of lc30 - lc50 was developed by using absolute volume method. the main factors affecting the workability of sclc were studied by adopting the modified l - 800 fluidity instrument. the results indicate that the key techniques insuring good workability of sclc are about 30 % first - grade fly ash, about 50 % volume sand ratio, 2 % ~ 6 % dosages of silicon fume and compounded superplasticicizers with viscous ingredient

    採用改進l - 800流動儀，研究了影響lc40自密實輕骨料高性能混凝土工作性的主要因素，結果表明：粉煤灰摻量保持30左右，硅灰摻量為2 6 ，體積砂率為50左右和摻加具有粘塑組分的復合高效減水劑是保證sclc拌合物具有較好工作性的關鍵。
  8. Concrete reinforcing steels. weldable ribbed bars and coils of grade fee500. fabric made of these reinforcements

    混凝土用鋼筋.等級為fee500的可焊竹節鋼筋和蛇形管.由這些鋼筋製成的鋼筋網
  9. Application of scour and abrasion resisting high grade concrete mixed with silica powder and retarded water - reducing agent in zipingpu hydropower station

    緩凝高效減水劑配製高標號抗沖耐磨混凝土在紫坪鋪電站中的應用
  10. Due to high quantity and grade of cement, early shrinkage of super high strength & high performance concrete is larger than that of ordinary concrete

    超高強混凝土由於採用高水泥用量和高標號水泥，其早期收縮明顯大於普通混凝土。
  11. In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects

    通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。
  12. This paper presents design principle and method of asphalt concrete pavement typical construction and cement concrete pavement typical construction, formulates typical construction drawing of two type pavement and workouts pavement typical construction computer aided design, by summarizing and absorbing research production of home and abroad, considering different natural conditions, grade of road and traffic volume in ningxia, and collecting a mass of engineering datum, calculating and checking

    本文通過總結與吸收近年來國內外路面典型結構的研究成果，考慮寧夏地區不同的自然條件、道路等級和行車荷載條件，在大量計算、驗算的基礎上，提出適用於寧夏公路的瀝青混凝土路面典型結構和水泥混凝土路面典型結構的設計原則和方法，具體擬定了兩種類型路面的典型結構圖，並編制了公路路面典型結構計算機輔助設計程序。
  13. The quality of the anti - slide surfaces of highways is directly related to the grade of asphalf - concrete and the content of asphalt

    摘要公路抗滑表層的質量與瀝青混凝土集料的級配、用量有直接關系。
  14. In this thesis, the experimental research of the behavior of high strength concrete axial compression columns and eccentric compression columns under non - uniform temperature field are conducted. from the experimental analysis, the variational regularity of ultimate load capacity and deformation of high strength concrete compression - flexure members under non - uniform temperature field is obtained. the influences of different factors including temperature, stirrup contents, strength grade of concrete, pre - loading level, eccentricity and different loading - temperature paths to refractory capability of members are investigated

    文中還對高強混凝土軸心受壓柱和偏心受壓柱在不均勻溫度場下的力學性能進行了試驗研究，通過試驗分析了高強混凝土壓彎構件極限承載力和變形在不均勻溫度場下的變化規律，考察了不同升溫溫度、箍筋用量、混凝土強度等級、預加荷載水平、荷載偏心以及荷載?溫度途徑等對構件耐火性能的影響，通過試驗量測，得到了構件的截面溫度場。
  15. A good model of the full - grade aggregate concrete with high aggregate content is precondition to successfully execute concrete meso - mechanical simulation, so that the main work in the dissertation is focused on the following study concerning the random aggregate model of dam fully - graded concrete : ( 1 ) based on the topology of spherical aggregates, an algorithm of the random convex polyhedron aggregate model was presented considering the actual aggregate content, grading, and aggregate shape, and corresponding fortran program was developed to generate random convex polyhedron aggregate

    針對全級配大壩混凝土的實際骨料含量和骨料形態，本文做了以下主要工作: （ 1 ）在一種高效率生成的隨機球骨料模型的基礎上，形成隨機凸多面體骨料模型，同時研究了細觀單元屬性判別方法，編制了對含有凸多面體骨料的細觀區域進行結構性有限元網格剖分程序。本文給出的三維隨機骨料模型演算法不但考慮了混凝土的骨料的實際級配和含量，而且計及了骨料的實際形態。
  16. After the evaluation of the three parameters in the proposed creep model, which is based on the large numbers of experimental measurements of concrete creep, the influential regularities of concrete filled steel tube columns under long - term loading are investigated. by dispersing time, the method of tangent modulus is adopted to study the relation of creep strain and load time. in the end, this paper took cft specimens with representative geometry and sectional dimensions as examples and adopted the proposed method as an approach to investigate the influencing regularities of many factors, which include the ratio of long - term load to strength, the slenderness ratio, the eccentricity ratio, and the intensity grade of concrete, on cft structures

    在對鋼管混凝土構件長期荷載效應的分析中，本文基於三維粘彈性理論，採用三參數粘彈性模型，提出了核心混凝土徐變的三維有限元分析理論，在總結過去大量關于混凝土徐變試驗實測結果的基礎上擬合了模型中的三個參數，並成功將其應用於鋼管混凝土徐變的三維分析計算中，得到徐變與持荷時間的關系，以典型截面形式的圓鋼管混凝土軸壓、偏壓構件為例，對軸壓比、長細比、含鋼率、偏心率以及核心混凝土等級分別進行了大量的參數分析和實驗對比研究，結果表明二者符合較好。
  17. The elas tic modulus, ascending segment of stress - strain relation of normal concrete, two kinds of concrete containing respectively grade fly ash and grade fly ash from huaneng fuzhou power plant is tested. the analysis results show that the relation between elast ic modulus and axes compressive strength of fly ash concrete is the same as normal concrete

    本文試驗研究了普通混凝土、不同品質粉煤灰混凝土的彈性模量、應力應變上升段及其他力學性能。結果表明：粉煤灰混凝土與普通混凝土的彈性模量隨軸心抗壓強度的變化是一致的；強度達到一定的等級后，相近強度等級的粉煤灰混凝土和普通混凝土，前者的彈性模量超過後者的彈性模量。
  18. Hrb400 steel bar, which is called new grade steel bar, has been defined the leading steel bar using in building structures by code for design of concrete structures ( gbj 5002 - 2002 ). it has been used widely in these years

    Hrb400級鋼筋自2002年被新頒布的《混凝土結構設計規范》 （ gb50010 - 2002 ） （文中簡稱規范）作為鋼筋混凝土結構的主導鋼筋以來，已被廣泛地應用在建築工程中。
  19. Performance of high - grade asphalt concrete of anti - slide surfaces in highways

    高等級公路抗滑表層瀝青混凝土的性能研究
  20. The main works of this dissertation are as follows : 1 ) the most recent durability research of reinforcement corrosion is generalized. 2 ) each calculation method of member assessment item ( including concrete cover cracking because of corrosion, concrete cover cracking limitation, chloride - ion eroding, deformation and bearing capacity ) is introduced. then the grade of corroding reinforcement concrete member is given

    本文主要做了以下幾個方面的工作： 1 ）總結了鋼筋銹蝕的耐久性研究現狀； 2 ）介紹了構件各個評定項目（混凝土保護層銹脹開裂、保護層銹脹裂縫限值、氯離子侵蝕、變形與承載力）的計算方法，劃分了銹蝕構件耐久性評定的層次和等級，初步建立了考慮多種因素的銹蝕鋼筋混凝土構件耐久性評定方法。
分享友人
分享到 Line

分享到臉書