混凝土單塊 的英文怎麼說
中文拼音 [húnníngtǔdānkuāi]
混凝土單塊
英文
concrete monolith-
Testing the frost resistance of facing bricks and clinker blocks ; freezing of single bricks on all sides
飾面磚和礦渣混凝土砌塊的抗凍試驗.單塊磚的所有面的The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter
本文首先從梁極限狀態下的變形入手，將塑性鉸區看作純彎段，將塑性鉸以外的區域看作剛體，按照體外預應力筋的形狀不同，分工程中最常見的三種體外結構形式，即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁，研究體外預應力筋變形和梁體的變形間的關系，推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式，並進一步求得梁的極限承載力。In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。Based on the experimental results, in concrete limitation stress sandwich first stage ' s ability and one - way and two - way precast slabs sandwich, results content code require - second class crack control. resistant crack calculation is appropriate. because post - tensioned prestressed advances plane ' s resistant crack. deformation and section strain measure accord with calculation results, this indicates 3d - gridding beams modulus is reasonable to precast slabs sandwich
本文通過對試驗數據的分析總結，認為：單塊夾層板第一受力階段的性能試驗及單向和雙向裝配整體式夾層板的性能試驗，滿足《混凝土結構規范》 （ gb50010 - 2002 ）中關于預應力樓板的二級裂縫控制等級的要求，抗裂設計得當；由於板縫無粘結預應力筋的存在提高了板的抗裂性。According to many years experience of dealing with client quality complains, the author introduced in brief its principle and content, and laid emphsis on the common quality complains of cement enterprise, such as concrete strength is lack, the concrete setting time is unnormal, the concrete slump constant is a little small and the loss is high, compatibility between cement and admixture is bad, cement color changes, concrete surface rise sand and cement agglomerate
作者結合自己多年處理顧客質量投訴的經驗，簡單介紹了處理顧客質量投訴的調查原則和內容；重點對水泥廠最常見的質量投訴內容包括混凝土強度不足，凝結時間異常；混凝土坍落度偏小，經時損失大；水泥與外加劑相容性不好；水泥顏色變化、混凝土地面起砂及水泥結塊等等投訴，分別進行了現象描述，原因分析和調查方法介紹。Characteristics of concrete sawing process, including chip morphology, sawing surface and sawing force were discussed through the experiments of diamond single grain drawing, single diamond segment sawing and diamond sawblade sawing
摘要通過金剛石單顆粒劃傷、金剛石單個節塊鋸切和金剛石鋸片鋸切系列試驗，對混凝土鋸切加工過程中的切屑形態和切削區表面形貌，以及切削力等基本特徵進行了詳細討論。In the paper, the load incremental method is adopted. by the way of reducing the elastic model of the destructive blocks in the elements, the finite element analysis model is revised and the repeated computing process does n ' t finish until the results are converged. the proposed method can simulate the entire process of concrete structures from crack to complete damage
分析中採用載荷增量法，對各級載荷下單元中破壞的材料分塊進行彈模折減處理，並重新生成單元剛度矩陣，經過多次迭代直至計算收斂，從而可以給出各類cfrp加固混凝土結構的載荷?變形全過程曲線，並預測其極限承載力。Railway applications - track - concrete sleepers and bearers - part 2 : prestressed monoblock sleepers
鐵路設施.軌道.混凝土枕軌和支撐架.第2部分:加預應力的單塊枕木Next was an experimental study on modification of stone ballast concrete small hollow block. the influence of polypropylene fiber, expansion agent and both of them on permeability - resistance and both moisture expansion and dry shrinkage of the block were systematically tested. the testing results and theoretical analysis slowed that they all can improve its properties, among which polypropylene fiber can most effectively restrain it ’ s moisture expansion and drying shrinkage ; however, the block doubly blended with polypropylene fiber and expansion agent will be likely to most beneficially improve crack - resistance of wall filled with the block
試驗結果和理論分析表明，單摻聚丙烯纖維、單摻膨脹劑和雙摻聚丙烯纖維與膨脹劑均能改善混凝土空心砌塊的性能，其中，聚丙烯纖維更有利於限制單個砌塊的濕漲干縮，單摻聚丙烯纖維的空心砌塊濕脹干縮的波動性最小;雙摻聚丙烯纖維與膨脹劑對限制石渣砌塊濕脹干縮的效果不理想，但雙摻砌塊將更有利增強于砌塊填充墻的整體抗裂性。2. a back analysis method for multi - parameter identification of concrete is suggested ; it needs simple testing equipments only, costs little, and reduces the difficulty of test. 3
該方法所需設備簡單，消耗成本少，同時也簡化了試驗的難度，給出的混凝土試塊溫度場解析解使得該方法更加簡便。Technology of non - damage test for concrete intensity is extensively applied in project testing, as a precise and direct approach. accordingly, the test in this essay makes use of average concrete samples made up of commo - n raw material in boutou, and adopt comprehensive method of ultrasonic elasticity to test the concrete used within one year in boutou. through the regression analysis, we get the regression equation of anti - intensity of these two materials under the given conditions. according to the result, we establish the accurate curve line for comprehensive method of ultrasonic elasticity and provide practiced and non - damage testing approach and calculating method for concrete intensity test and reference for testing staff concerned
混凝土強度無損檢測技術作為一種簡便快捷準確的測強技術在工程檢測中得到了廣泛的應用，鑒於此，本次試驗通過採用包頭地區常見原材料製成的一定批量常見齡期的不同種類（指混凝土試塊中的粗骨料、混凝土強度等級不同）普通混凝土標準試塊，採用回彈?超聲綜合法對包頭地區齡期不超過一年的現場混凝土進行了大量的試驗，並利用回歸分析，給出兩種骨料混凝土在相應測強條件下的立方體抗壓強度回歸方程，根據實驗結果建立包頭地區精度較高的混凝土回彈?超聲綜合法基準測強曲線，為實際工程的混凝土現有強度評定提供簡單易行的無損測試方法和計算方法，供有關檢測人員參考使用。The seams divide the wall into several units and the hollow shear wall of r. c w ith vertical seams has small self - weight, small stiffness and good ductility. due to having air insulation, it has good energy saving capability. so this new type shear wall structure will be a kind of ductile structure with advanced seismic behavior
針對傳統剪力墻結構的弱點，本課題提出帶豎縫鋼筋混凝土空心剪力墻板結構，此種墻板在墻體上設有豎向縫隙，將整塊墻板分成若干墻肢單元，具有自重輕、剛度小、延性大的特點，由於墻板中間有空氣夾層，保溫、隔熱效果也較好，以此種墻板為主體的空心剪力墻結構體系是一種抗震性能優良的「延性剪力墻結構」 。Block wall is supposed as a uniform material and having same properties in every direction, and its relation of stress - strain adopts the model of zhejiang university structure lab. aided by ansys, eight types of walls under level load have been nonlinear analyzed and achieved the cracking, extreme load, cracks location and form respectively. the simulation results show great agreement with experiment results
將砌塊砌體材料做勻質、各向同性處理，採用浙江大學結構工程研究所推薦的砌塊砌體非線性本構關系，利用ansys中的混凝土單元solid65模擬砌塊砌體和鋼筋混凝材料，共對八種類型墻體進行了非線性有限元模擬分析，分別得出了各種墻體的初裂、破壞荷載、裂縫開展情況、應力、位移等結果，初裂、破壞荷載和實測值相差不大，模擬的初始裂縫位置、形式以及裂縫開展情況與實驗結果比較吻合。Dong ying zhu jin timbering limit responsibility corporation, which wasbuilt in 2000, is a professional company thant products aseries products of aerated concrete. it has fixed assets 120 million, aaa bank reliability, and italso acquired the acknowledgement or iso9001 ： 2000. now, autoclave aerated concrete masonry has been built for 140 thousand m3 / a, while autoclave coal ash brick for 2 hundred million / a, autoclave aerated concrete wallboard for 200 thousand m3 / a and new type wall materials for 600 thousand m3 / a, which get the domestic first place, and the new developed dry power building material products achieve the leading in domestic technology
東營市築金新型建材有限責任公司始建於2000年，是專業生產加氣混凝土系列產品的新型建材企業，固定資產1 . 2億元， aaa級銀行資信， iso9001 : 2000國際標準質量管理體系認證單位.目前，已建成蒸壓加氣混凝土砌塊14萬立方米/年，蒸壓粉煤灰磚2億塊/年和蒸壓加氣混凝土墻板20萬立方米/年，年產新型墻材達到60萬立方米，居全國同行業首位，新開發的乾粉建材系列產品達到國內技術領先水平Secondly, according to the theory of impact echo method examining flaws, the road surface and the bridge surface are aimed as study targets, four concrete plates are made with differently deep surface - opening cracks. using the experimental system of impact echo method made by sansalone etc., this paper measures the stress waves velocity conveying in concrete plates by using one transducer or two transducers, and measures the depth of surface - opening cracks in concrete plates by using two transducers, and then the important data are attained
接著，根據沖擊反射法檢測結構物缺陷的原理，以路面和橋面的開口裂紋為研究對象，製作了帶有不同深度開口裂紋的混凝土板塊，使用sansalone等人開發的沖擊反射法實驗系統，用單傳感器和雙傳感器分別對混凝土板塊內應力波傳播的速度和不同深度的開口裂紋進行了測量，得到了重要的實驗數據。Precast concrete products - precast concrete garages - requirements for reinforced garages monolithic or consisting of single sections with room dimensions
預制混凝土產品.預制混凝土車庫.房屋尺寸大小的整體式或連續單塊式加筋車庫的要求Precast concrete products - precast concrete garages - part 1 : requirements for reinforced garages monolithic or consisting of single sections with room dimensions
預制混凝土產品.預制混凝土車庫.第1部分:房屋尺寸大小的整體式或連續單塊式加筋車庫的要求The influence of polypropylene fiber, expansion agent and both of them on moisture expansion and dry shrinkage of the filled wall were systematically tested. the testing results and theoretical analysis slowed that polypropylene fiber was the most beneficial to restrain it ’ s moisture expansion and drying shrinkage, however, the block doubly blended with polypropylene fiber and expansion agent can most beneficially improve crack - resistance of wall filled with the stone ballast block, at the
試驗結果和理論分析證明上述試驗結果及理論分析，即單摻聚丙烯纖維、單摻膨脹劑和雙摻聚丙烯纖維與膨脹劑均能限制混凝土空心砌塊的濕漲干縮，其中，聚丙烯纖維的限制效果最好;但是，膨脹劑的補償收縮與聚丙烯纖維的限縮聯合作用使得雙摻砌塊更有利於增強混凝土空心砌塊填充墻的整體抗裂性能。At last, base on the windows2000 operation system, the soft wrap of impact echo examining system is explored by using the language matlab6. 1. the soft can achieve some function, including calculating the velocity of p _ wave in concrete plates by using one transducer or two transducers, amounting the depth of surface - opening cracks in concrete plates by using two transducers and measuring the depth of highway
最後，基於windows2000操作平臺，用matlab6 . 1語言編制了沖擊反射法測量系統的軟體包。此測量系統能具有用單傳感器測量波速、用雙傳感器測量波速、用雙傳感器測量混凝土板塊開口裂紋的深度和測量公路路面的厚度等功能。整個系統具有友好的人機界面，操作簡單，計算快捷，結果的顯示直觀。We analyes post - tensioned prestressing properties and comparing with practiced results. we analyse one - way precast slab sandwich negative moment section resistant crack properties and two - way precast slabs sandwich under plane resistant crack at unprestressed section and second - prestressing propties. we compare canceling bonded reinforcement with laying on bonded reinforcement resistant crack properties and deformation. auxiliary lab include : concrete resistant pollution intensity. concrete resistant compressing intensity and elastic modulus, compare with results of code. analyse sandwich ' s strain and long - time stress, strain and introduce a new method through theory calculating long - time stress and strain
配套的試驗研究有：混凝土的抗拉強度和彈性模量試驗及混凝土的抗壓強度和彈性模量試驗，混凝土的極限抗拉強度和極限拉伸應變試驗，並與《混凝土結構規范》 （ gb50010 - 2002 ） ，結果進行了對比；單塊夾層板放張階段的彈性應力、應變分析和長期應力、應變分析，並詳細介紹了按混凝土徐變理論進行長期應力、應變分析的方法。分享友人