crack width 中文意思是什麼
crack width
解釋
裂縫寬度-
Test and analysis results indicate that some little polypropylene fiber in cement concrete can not only reinforce the load _ carrying capacity and rigidity, but also control the crack width and strengthen the ductibility of beams
對比分析結果表明，適量聚丙烯纖維的摻入能夠提高梁的承載能力和剛度，並能限制裂縫寬度，增加梁的延性。 -
The deliberation of calculating concrete crack width for steel lined reinforced concrete penstock
鋼襯鋼筋混凝土壓力管道混凝土裂縫寬度計算問題的商榷 -
Calculating crack width of penstocks with inner steel liner and reinforced concrete due to its internal pressure
內壓作用下鋼襯鋼筋混凝土壓力管道裂縫寬度計算公式 -
3. the mid - span deflection of slight corrosion specimens is smaller than that of non - corrosion specimens on the static loads and the fatigue loads ; the maximum crack width of slight corrosion specimens is larger than that of non - corrosion specimens ; fatigue life of slight corrosion specimens is shorter than that of non - corrosion specimens ; the corrosion of re - bars is a sensitive factor to fatigue life
（ 3 ）輕微銹蝕試件梁的跨中撓度在靜載和循環荷載下比未銹蝕梁小;輕微銹蝕試件梁的最大裂縫寬度比未銹蝕試件梁的最大裂縫寬度大;輕微銹蝕試件梁的疲勞壽命比未銹蝕試件梁的疲勞壽命降低，鋼筋銹蝕是疲勞壽命的敏感因素。 -
In addition, water gradients, crack width, permeability time, specimen ' s kinds can also influence the self - sealing degree
水力梯度、裂縫寬度、滲流時間、試件品種均對自愈程度有比較大的影響。 -
The influence of stress ratio on maximum crack width of specimens is obvious, and the larger the stress ratio is, the longer the fatigue life is, it can influence the mechanical property of specimens directly
應力比對試件梁的最大裂縫寬度影響顯著，應力比越大，疲勞壽命越長，直接影響試件梁在疲勞荷載作用下的性能。 -
Specimens ’ cracking load under dead - load, fatigue failure characteristic, fatigue life, deflection of span - centre, fatigue flexural rigidity, maximal crack width, development of cracks and strain of concrete and steel bars have been investigated. the influence of fatigue cycle characteristic, ratio of reinforcement, kinds of aggregate and concrete compressive strength on the specimens ’ fatigue behavior has been also investigated
對試件的靜載下開裂荷載、疲勞破壞特徵、疲勞壽命、疲勞荷載作用下的跨中撓度、截面疲勞抗彎剛度、裂縫開展情況及最大裂縫寬度、鋼筋及混凝土在循環荷載作用下應變等內容進行了研究，分析了疲勞循環特徵值、縱筋配筋率、骨料種類、混凝土抗壓強度等因素對試件疲勞性能的影響。 -
The formulas on crack width of rc beams and src beams are analyzed at home and abroad too. the calculation formulas on the maximum crack width of src beam under short time load are suggested. the calculation result tallies that of tests well
分析比較了國內外鋼筋混凝土梁和勁性鋼筋混凝土梁裂縫計算公式，提出了勁性鋼筋混凝土梁在短期荷載作用下的最大裂縫寬度計算公式，其計算值與試驗值吻合較好。 -
Those include the load carrying capacity of the specimens in the limit state, the cracking load of the specimens, the crack width of the specimens and the deflection of the specimens
論文從四個方面進行研究：輕骨料混凝土板的正截面承載力，抗裂度，正常使用極限狀態下的裂縫寬度和撓度計算。 -
Therefore, the scientific scholarsboth at home and abroad have been carried series of research work since the 1960s, with some defects still remaining unresolved. the objects of this research are : ( 1 ) to analyze the course of the crack, itsappearing and development, and discuss the major factors influencing the behavior ofthe negative moment region in continuous composite beam. ( 2 ) to establish the modeand formulas of the crack width by the theoretical analysis
本文研究的主要目的是通過對組合梁負彎矩區裂縫的出現、發展的過程分析，討論影響鋼-混凝土連續組合梁負彎矩區受力性能的主要因素，建立了組合梁負彎矩區裂縫計算模式和裂縫寬度的計算公式，並初步探討了連續組合梁合理截面形式。 -
( 3 ) to discuss thereasonable section shape of the continuous composite beam. the works of this paperare as follows : ( 1 ) contrast the cracking course of the concrete beam and the composite beam, atthe point of the bending state of the beams, put forward the crack width mode : bending curvature 、 crack height 、 the distance between crack
據此，本文的主要研究成果如下: （ 1 ）通過分析、對比普通混凝土梁和組合梁負彎矩區裂縫出現、發展過程，以構件受彎狀態為出發點，提出了以彎曲曲率、裂縫高度、裂縫間距為主要參數的裂縫寬度計算模式。 -
So, changing the material property of slrcp to decrease the crack width or to avoid the crack to happen is a good method. this method can keep the advantage of slrcp, and at the same time avoid its disadvantage. so, two new slrcp. is presented : steel lined steel fiber reinforced concrete penstock ( slsfrcp ), steel lined steel fiber self - stress reinforced concrete penstock ( slsfsrcp )
基於此思路，提出了兩種改性鋼襯鋼筋混凝土壓力管道：即鋼襯鋼筋鋼纖維混凝土壓力管道、鋼材鋼筋鋼纖維自應力混凝土壓力管道，並進行了以下開創性的研究： l以三峽電站壓力管道為原型，按相似比1 ： 10製作完成了常規鋼襯鋼筋混凝土壓力管道、改性鋼材鋼筋混凝土壓力管道模型。 -
A way to avoiding crack or reducing crack width of concrete or reducing distortion of member is using prestressed concrete. the writer tried to make full use of the merit of the prestressed concrete and designed prestressed concrete mandril to control crack of structure. the prestressed concrete mandril, which was firstly applied high pressure on a small concrete bar, and then was made in concrete, so it would act as reinforced bar and resist load. in this thesis the writer designed 24 mmnbers and had experimental study of them, reached the conclusion that the effect of resisting crack of the prestressed concrete mandril was good when the load was not large, it can enhance the capacity of resisting crack and reduce the crack distance and crack width, but when the loads was large, the effect of resisting crack was not good, when we used the prestressed concrete mandril and reinforced bar together in member, the effect of resisting crack was very good. the writer analysed the adherence mechanism and wreck mechanism of the prestressed concrete mandril in anxial tension members, and according to the character of the prestressed concrete mandril, the writer constructed the bond model of it. then the writer introduced the analysis theory of crack including the bond - slip theory, the non - slip theory, the synthesis theory and mathematics stat method. the different theory had different theory base, they considered that the primary affection of crack width was different. in this test, the crack distance and crack width of members which placed reinforced bar were match to the compute value of the code gb 50010 - 2002 very well. to the members which
本文共進行了24根試件的試驗研究，得出了預應力混凝土芯棒能較大地提高構件抗裂承載力，在荷載小於預應力混凝土芯棒的開裂荷載時有較好的抗裂效果，能較大地減小裂縫間距和裂縫寬度，但是當荷載較大預應力混凝土芯棒開裂時預應力混凝土芯棒的抗裂效果不是很好，若將普通鋼筋和預應力混凝土芯棒一起使用時則有很好的抗裂效果。本文分析了預應力混凝土芯棒在軸拉試件中的粘結機理和破壞機理，根據預應力混凝土芯棒本身的特點，提出了預應力混凝土芯棒與后澆混凝土之間的粘結模型。然後本文詳細介紹了經典的裂縫分析理論粘結滑移理論、無滑移理論、綜合理論和數理統計方法，各理論有著各自不同的理論基礎，認為影響裂縫寬度的主要影響因素也各不相同。 -
Predicting the crack width of partly prestressing concrete square - section beam by bp neural network
網路預測部分預應力矩形截面梁的裂縫寬度 -
Abstract : simplifying the formula in code for concrete structure design ( gbj10 - 89 ), we obtaine the appoximate formula of crack width, that is used to the beam of rectangular section in design
文摘:對《混凝土結構設計規范》 （ gbj10 - 89 ）中的裂縫寬度計算公式進行化簡，得出矩形截面梁裂縫寬度實用計算公式，供工程設計時使用。 -
Viscosified acid has been shown to provide wider crack width and improved acid retardation over that from thin fluid when used in carbonate acidizing
巳被增稠的酸顯視出較寬的裂縫和更好的酸阻滯性能，這就比稀酸液用於碳酸（鹽）的酸化效果更好。 -
The above fruits may be of important theoretical significance and of practical value for reasonably using the results of model test of reinforced concrete structures to forecast and judge the character of crack development of prototype structures and for founding more reasonable calculating formula of crack width henceforth
上述研究成果有益於合理利用鋼筋混凝土結構模型試驗的結果預測和評判原型結構的裂縫開展情況，及建立更為合理的裂縫寬度計算公式。 -
( 2 ) base on the crack width mode, separately establish formula of the bendingcurvature 、 crack height 、 the distance between crack, and compost the formula of thecrack width. and put the experiment data of others literature into the formula, thecalculated result also show good agreement with the experiment data
（ 2 ）在上述模式的基礎上，分別建立使用荷載下曲率計算、裂縫高度取值及裂縫間距計算的公式，由此形成最終裂縫寬度計算公式，該公式概念清楚、計算簡單，並引用其他文獻的試驗數據代入公式，計算結果與試驗數據吻合較好。 -
? rack occurs during the construction period of slrcp in lijiaxian hydropower station, which generate the study of slrcp construction period ; ? ccording to the survey of slrcp which runs for years, the crack width exceed the design width. so, the crack control is focused
李家峽壩後背管在施工期就出現裂縫，由此引出鋼襯鋼筋混凝土壓力管道施工期性能研究問題；根據對運行多年的鋼襯鋼筋混凝土壓力管道實地勘察，發現管道的裂縫寬度均超過當初設計裂縫寬度，由此引出裂縫控制問題。 -
The calculation results show that the value of crack width obtained from the new and old hydraulic design specification is different, especially, the member with thicker concrete protective layer, and that the value obtained from industrical and civil building design specification is larger than that from hydraulic design specification, so its design result is safe than hydraulic design
實例表明新、舊規范的裂縫寬度值計算差異較大，特別是混凝土保護層厚度較大時，同時工民建規范計算公式的計算值較水工規范計算公式的值大，故偏於安全。
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