混凝土基期齡 的英文怎麼說

中文拼音 [húnníngtǔjīqīlíng]
混凝土基期齡 英文
age of concrete
  • 混 : 混形容詞1. （渾濁） muddy; turbid2. （糊塗; 不明事理） foolish; stupid
  • 凝 : 動詞1. （凝結） congeal; curdle; coagulate 2. （注意力集中） fix
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 齡 : 名1. （歲數） age; years 2. （年限） length of time; duration 3. （某些生物體發育過程中不同的階段） instar
  • 混凝土 : concrete; beton; jetereting混凝土壩 concrete dam; 混凝土板 concrete slab; 混凝土標號 concrete gra...
  1. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  2. The concrete with the a 28 days compressive strength of c60 can be produced by using suitably pulverulent coal - fired ash, the higher the quantity of pulverlent coal - fired ash mixed in concrete with 10 % - 20 % is, the higher the strength of concrete is. then, we carry out the studies on the technics properties that reflect the comprehensive properties of concrete. we find that the separating and excreting water of the concrete can be avoided efficiently when the pulverulent coal - fired ash and superplasticizer are used suitably, the higher the quantity ration of coal - fired ash and super plasticizer are, the higher the caving degree of the concrete is

    在上述研究基礎上，對摻細化粉煤灰后混凝土的強度變化規律進行了分析研究，在適當配合比及高效減水劑的作用下，摻一定數量的磨細粉煤灰，在28天齡期可以配製出抗壓強度高於c60的粉煤狄高強混凝土；當磨細粉煤灰以10 - - 20不同的摻量分別摻入粉煤灰中時，粉煤灰高強混凝土的強度隨摻量的增大，各齡期強度均逐漸降低；在摻入8硅灰+ 10粉煤灰可使高強混凝土的各齡期強度都有很大增加，當單摻8粉煤灰時，混凝土的後期強度增加較快；粉煤灰混凝土必須加入高效減水劑遼十l彬技術人學碩十學位論文後j 」能達到高強的目的。
  3. When the amount of powder is same, the finer the powder, the less the ratio of linear contraction ; at the same hydration, different fines of particle results in the different linear contraction regulation. in initial hydration, the ratio grows with the fines ; the less fines the fewer ratios. after that linear contraction of hpc gradually gets to the balance

    高鈦礦渣的加入明顯降低混凝土的線收縮率，摻量相同時，礦渣細度的越細，高鈦渣混凝土線收縮率越小；相同齡期時，摻不同細度高鈦礦渣混凝土收縮28天內，高鈦礦渣混凝土收縮率與高鈦礦渣的細度幾乎成比例的增長，而後期收縮線比較平，說明後期的收縮基本達到平衡。
  4. Concrete elastic modulus and concrete creep and shrinkage variety at different time are reckoned in by using time increment analysis method and concrete creep and shrinkage secondary force is calculated by using effective elastic modulus. bridge stability analysis program is developed on the base of structure matrix displacement method, the program adopts visual basic language, has friendly interface and visual data input windows. the buckling safety factor of currently finished structure is given as result

    為計入混凝土彈性模量的變化及混凝土徐變收縮隨混凝土的齡期與外荷載加載時間不同而變化的影響，採用時間增量法對每個計算階段根據其階段內時步數進行循環，以計算時段內彈性應力、應變增量和徐變、收縮產生的應力應變增量，利用有效彈性模量法計算混凝土徐變收縮次內力，在此基礎上，結合結構矩陣位移法的基本理論編制開發了計入混凝土時效效應的高墩大跨徑橋梁穩定分析程序。
  5. Abstract : this paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses. all these methods are divided into two groups. the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods. then, as example, two prestressed concrete beams are calculated to compare the result of different methods. at last, some recommendations for the calculation of long - term stress losses are given to improve the present code of our country

    文摘:定性分析了國內外幾本主要規范、規程和建議中關于預應力長期損失的計算方法，將其分為兩類，推導了第一類方法的理論基礎? ?齡期調整的有效模量法，詳細分析了第一類計算方法中各系數的取值，並以兩根預應力混凝土梁為例對各方法的計算結果進行了定量分析，最後對我國預應力長期損失計算方法提出了改進建議。
  6. This thesis has made the contrast test of shrink and creep for plain concrete and concrete filled steel tubes on the basis of long term in - door test, obtains the principles of shrink - creep of concrete filled steel tube, simulates the test data, analyses and contrasts the coefficient of shrink and creep, thus offers reference for the calculation mode of creep, furthermore by introducing reasonable assuming at the same time, develops the calculation formula of equivalent elastic modulus at the same time, develops the calculation formula of equivalent elastic modulus, adopts common structure analyses procedure ansys to calculate the redistribution of section stress in the steel tube and concrete during operation

    本文在長期的室內試驗的基礎上對素混凝土和鋼管混凝土做了收縮和徐變的對比試驗，得出鋼管混凝土的收縮徐變規律，對試驗數據進行了擬合，對鋼管混凝土的收縮和徐變系數進行了分析和比較，從而為鋼管混凝土的徐變計算模式提供參考，同時通過引入合理的假定，並結合由「齡期調整有效模量法」導出的混凝土徐變本構關系，推導出了鋼管核心混凝土考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用通用結構分析程序ansys對成橋后鋼管和混凝土應力重分佈進行了計算。
  7. This paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses. all these methods are divided into two groups. the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods. then, as example, two prestressed concrete beams are calculated to compare the result of different methods. at last, some recommendations for the calculation of long - term stress losses are given to improve the present code of our country

    定性分析了國內外幾本主要規范、規程和建議中關于預應力長期損失的計算方法，將其分為兩類，推導了第一類方法的理論基礎? ?齡期調整的有效模量法，詳細分析了第一類計算方法中各系數的取值，並以兩根預應力混凝土梁為例對各方法的計算結果進行了定量分析，最後對我國預應力長期損失計算方法提出了改進建議。
  8. 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。
  9. It proof that this device is more direct to validate. based on the time effect theory of creep and combined the test and the actual construction circumstance, the paper may be helpful to construction for it is analyzed and simulated by fem

    本文將在徐變時效分析理論的基礎上，結合實際施工情況，通過對不同齡期的混凝土徐變特性的試驗，利用有限元軟體進行節段的模擬分析，對施工起到良好的指導作用。
  10. Based on the theoretical model, influence of slenderness ratio, the changing frp ratio, strength of the frp composites and the concrete as well as load eccentricity ratio on the bearing capacity of the members after sustained load is discussed. finally, simplified calculating method of the reduction factor for the bearing capacity of circular frp - confined concrete beam - columns with long - term effects considered is suggested. the achievements in this paper may be referred for practical engineering

    在系統分析長細比、截面含frp率、 frp抗拉強度、混凝土強度、加荷齡期和荷載偏心率等因素對長期荷載作用下frp約束混凝土構件承載力的影響規律的基礎上，給出考慮長期荷載作用影響時frp約束混凝土構件承載力折減系數的簡化計算公式，可為工程實踐提供參考。
  11. The influence of mineral materials such as fly ash, blast furnace slag and silica fume on expansion performance of the common concrete and compensating - shrinkage concrete was researched

    在此基礎上，研究了高強混凝土在不同齡期的收縮規律，發現高強混凝土的收縮特性與普通混凝土存在顯著不同。
  12. 2. based on the adhesive fracture test results of new and old concrete with the three point bending test method, the main influence factors of the adhesive fracture toughness are analyzed by means of the square - residual method. the multi - factor formula of adhesive fracture toughness is put forward, which will give the reference to the repairing and strengthening of concrete structures

    在新老混凝土粘結斷裂試驗的基礎上，對影響新老混凝土粘結斷裂性能的主要因素進行了顯著性分析，各因素對粘結斷裂韌度影響的顯著性大小依次為界面粗糙度、界面劑類型、粘結齡期、混凝土強度、混凝土粗骨料最大粒徑等；並給出了新老混凝土粘結斷裂韌度的多因素計算公式，可為工程設計和加固維修提供參考。
  13. 2. the research results indicate that the physical mechanical properties of hbc concrete such as compressive strength, flexural strength, splitting tensile strength, elasticity modulus and etc. is equivalent to that of opc concrete at age of 28d and remarkably surpasses opc concrete at 90d though its early age strength ( 3d, 7d ) is relatively lower. moreover, the relation of w / c ratio of hbc with compressive strength as well as strength at 7d with 28d ( c50 - c80 ) has been established and the effect of the dosage and type of fly ash on compressive strength of hbc has also been studied

    研究了高貝利特水泥高性能混凝土的抗壓、抗折、劈拉、彈性模量等一系列物理力學性能，結果表明，和opc混凝土相比， hbc混凝土早期（ 3d 、 7d ）抗壓強度、抗折強度、劈拉強度、彈性模量較低，但隨著齡期的增加， hbc混凝土28d諸項強度基本與之持平， 90d則全面超過opc混凝土；探討了高貝利特水泥高性能混凝土水膠比與28d抗壓強度的關系以及c50 c80強度范圍內高貝利特水泥高性能混凝土7d強度與28d強度的關系；此外，對粉煤灰摻量及品種對高貝利特水泥高性能混凝土抗壓強度的影響也進行了研究。
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