有效板厚 的英文怎麼說
中文拼音 [yǒuxiàobǎnhòu]
有效板厚
英文
effective depth of slab-
Some effective measures were presented to solve bigger prestress loss of mid span in overlong frame and it is suggested that prestressed reinforcement with curve linetype should be adopted in slabs if possible
在次梁與板中為有效利用無粘結預應力筋,建議在板厚許可的情況下盡量採用曲線形預應力筋。Application of caving mining technology with bottom under condition of flat dipping mid - thick body and unstable rock caused the most of trench and bottom drift, located in abutment, to be destroyed and low recovery in south area, xishimen iron mine
摘要在緩傾斜中厚礦體底板巖性不穩固的條件下,採用有底柱崩落法,由於電耙道大多處于空區邊部應力集中的部位,致使塹溝及底部結構巷道破壞嚴重而使回收率極低,採用無底柱崩落卸壓則可有效解決上述難題。With an analysis of soil liquefaction potential for free field of nanjing metro line 1 under 7 degree earthquake, as well as for excavated field, in line with railway engineering anti - earthquake design specification, dynamic triaxial tests and theoretical analysis using efficient stress method, the author comes to the conclusion that, when metro plate is located at layer s and the layer is thick, liquefied area is at metro bottom plate ; in some local section liquefied area is at metro top plate, or arch sides at the top of metro in most places
摘要採用鐵路工程抗震設計規范、動三軸試驗及有效應力的理論分析相結合的方法,對南京地鐵南北線( 1號線)區間隧道開挖后其地基土在7度地震情況下的土層液化情況進行分析得出:當隧道底板坐落在5層且5層較厚時的液化區出現在隧道襯砌底板處;局部地段液化區出現在隧道頂部及拱腰;大部分地段的液化區出現在隧道頂板上方。With this kind of element, panel flutter analysis can be performed not only for thin plates but for the middle - thickness laminates
由於min3單元計及了壁板的橫向剪切效應,因此這種壁板顫振分析方法不僅可以針對薄板,而且可以針對具有中等厚度的復合材料層合板。The single phase electric motor, which is suitable for wide range of voltage, permits the efficiently cutting of slender fur strips, thicker skins and skins wide in width. the using conditions can be madebetter when the machine is used in the area of unstable voltage
:配用單相大功率電機,對于細毛條較厚皮板和大幅麵皮張都可以有效切割適用電壓范圍寬:對于電壓不穩定地區,可以改善使用條件In this paper, an optimization design cad system of detached foundation of transmitting electricity iron tower has been studied. the system uses an easy and efficient method named grid search to find out the minimum cost of an detached foundation. at the same time, the depth and width of foundation, the width of column, the thickness of foundation plan have been ascertained
本論文研究開發的輸電鐵塔獨立基礎優化設計cad系統,以最小費用為目標,採用簡單、有效、易於編程的有約束非線性規劃方法? ?網格搜索法,對輸電鐵塔獨立基礎進行優化設計,確定出基礎埋深、基柱寬度、底板寬度、底板厚度等合理截面尺寸,並開發出計算、出圖一體化的優化設計計算機輔助設計系統。The minimum reinforcement rate has little effect on reinforcement in columns. ( b ) when considering the bars in slab participate in beams against negative flexure, four or six times slab - thickness on each side of web can be defined as the effective flange width of slab by intermediate or rare earthquake actions
當考慮板筋對梁端負彎矩承載力的提高作用時,可在設防烈度地震和罕遇地震作用下分別取每一梁側四倍、六倍板厚范圍作為板的有效寬度。Through analyzing the private economy of wujiang county, especially the current self - development, regional and industrial characteristics of private enterprises, this article put forward that the private industry of wujiang county has formed its industrial characteristics and economical situation of " one town one mark ", " five main economical parts " and etc. under the dual affection of " southern jiangsu province model " and " wenzhou model ", this situation was formed through activating collective stock assets effectively, making use of the rich industrial basis of wujiang county, catching the historical chances of the industrial development, relying on its advantages, developing its excellent enterprises and focusing on the traditional industry
本文從吳江民營經濟,特別是民營企業的發展現狀入手,從企業自身發展、區域特點和行業經濟特點三方面對吳江民營工業的發展現狀進行分析,提出了吳江民營工業今天的「一鎮一品」 、 「五大板塊」的行業特點和經濟局面,是在「蘇南模式」和「溫州模式」的雙重影響下,有效激活集體存量資產,利用吳江豐厚的產業基礎、人力資源以及活躍開放的經商理念等文化歷史因素,抓住產業發展的歷史機遇,依靠自身優勢,發展龍頭企業,重視傳統產業,拓展配套延伸而形成的。Effective distribution width concerning cantilever plate with linearly varying depth
關于變厚度懸臂板的有效分佈寬度This paper also draws a important conclusion : with tow elastic supports in the middle of 6 - point - supported - glass, we can effectively better the capacity of glass to bear loads, so as to thin the glass, which will be safe and economical
得到重要結論:對於6點支承玻璃,如果中間支承採用彈性支承,那麼可以非常有效地改善玻璃面板的受力情況,降低玻璃厚度,既安全又經濟。For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation
數值模擬採用fluent軟體,計算結果用excel進行處理,通過對大量數值工況進行數值模擬計算,結果表明:對于單側百葉風口,計算表明: 1 )對于公式p = ( ~ 2 ) 2 ,的理論計算值中定義為流體流經百葉風口內部時的速度,即有效速度,而工程上常使用流體的來流速度來計算,計算表明,的理論計算值與工程應用值的關系為( _ (理論) ) ( _ (工程) ) = 0 . 813 ; 2 )當來流速度一定時,擋板傾斜角度越小,壓力損失越小、出口速度越小;因此在要求進口風速比較小的場所,如播音室、圖書館等,宜採用擋板角度30的百葉風口;在要求進口風速比較大的場所,如電影院、辦公室等,百葉擋板的角度應選45 ; 3 )當來流速度一定時,百葉擋板的擋板寬度b與擋板間距h的比值b h越大,壓力損失越大,出口速度越小,計算表明,鑒于壓力損失、出口風速、板間形成渦流區的大小,百葉擋板的b h值取0 . 8到2 . 0之間, b h = 1 . 2為最佳值; 4 )當來流速度一定時,在計算的條件下,當百葉擋板寬度b = 40mm時,百葉擋板的阻力系數最小,考慮到渦流區等的影響,建議選用10mm b 50mm的百葉擋板;西安建築科技大學碩士學位論文5 )百葉擋板的厚度取為1 . sinln為好; 6 )百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板,利用其較好的導流作用,可得到更好的出流效果。The results indicate that the proposed method is effective in measuring the residual stress in thick pre - stretched aluminum alloy plates
結果表明,文中提出的方法能有效地解決厚板內部殘余應力測量的難題。By comparing the values of the traditional rolling force model and the prediction model by cmac with the measured ones, the precision of the prediction model by the fuzzy cmac is much better than that of the traditional rolling force model and is more suitable for online use of a multi - roll cold tandem mill controlled by computer, which also meets manufacturing requirement of the field and receives better control effect of the shape and thickness
通過對傳統軋制力模型計算值、小腦模型預報計算值與實測值進行對比分析可知,基於模糊小腦模型神經網路的多輥冷連軋機軋制力預報模型具有較高的計算精度,更適合於多輥軋機在線計算機過程式控制制的應用,滿足現場在線生產的要求,取得良好的板形板厚控制效果。A deep beam model with spring bearing is given, based on the analysis of middle frame of frame and shear wall structure ground floor, which is sensitivity to floor rigidity. comparing rigid assumption to elastic assumption, shear error of frame is worked out, which is index of floor rigidity. conclusions are drawn that floor rigidity is independent of earthquake intensity and the most effect factor to floor rigidity is floor length to width ratio
以樓板按剛、彈性計算的框架柱的剪力誤差值作為衡量樓板剛性的指標,通過對模型進行理論分析證明以往一些只能通過歸納總結得出而沒有理論支持的結論:樓板的剛性同地震烈度無關;通過對影響樓板剛性的各個因素進行分析比較,得出樓板的長寬比是影響樓板剛性的主要因素,而增加樓板的厚度並不是增加樓板剛性的有效途徑。This article analyzes the difference of theories calculating the effective width between chinese code and north american codes. the author finds the results based on the technical code for design of cold - formed thin - wall steel structure is lower than that of north american codes, especially for flat plate with relatively larger width - thickness ratio whose thickness is thinner than 2mm, the difference is more obvious
本文分析了國內外關于冷彎型鋼屈曲后強度的有效寬度計算理論,通過理論分析和計算對比發現,按我國《冷彎薄壁型鋼結構技術規范》計算的板件有效寬厚比值較北美規范低,特別是對于厚度小於2mm的大寬厚比板件,其差異更明顯。At the same time, a comparison with united states lrfd code, european ec4 code and china gjb rules has progressed. for guiding engineering practice, the paper arranges different thick steel pipe and different strength concrete and draws a conclusion of the best combination. for the subject of house, the paper studies the form of this kind of special combination beam named flat beam for big space
本文根據冷彎薄壁方鋼管混凝土柱的特點,探討了方鋼管各板件全截面有效的條件,同時對研究鋼管混凝土較為詳盡的美國lrfd規范、歐洲ec4規范和我國gjb規程做了對比分析;為指導工程實踐,文章對不同壁厚的鋼管和不同強度的混凝土進行了搭配,進行了性價比的比較;結合多層住宅這樣一個研究對象,為獲得大空間,本文探討了扁梁這種特殊的組合梁形式。According to the result of the field observation, the design by load equivalent simplification and plotting out representative local models following spatial strut - and - tie theory are obviously practical, recommendations for design on the basis of the result are put forward, including skipping rafts processing straight transmittal function so as to induce thickness of the plank and use of reinforced steel
實測結果表明,樁筏基礎按空間桁架理論通過荷載等效簡化並劃分成有代表性局部模型的設計方法是可行的,據此,提出了扣除直接傳遞的荷載設計筏板以減少板厚和配筋等相應的設計建議。The effectivity of the approximation of rayleigh wave in semi - infinite media to the plane mode in the stator transducer of saw motor with finite thickness ( much bigger than the wavelength of the saw ) is evaluated first time by us
首次探討了用瑞利波近似表面彈性波馬達定子換能器(厚度遠大於表面彈性波波長)平板振動模式的有效性。Which often produces some unexpected problems, such as prolonging time limit of project, increasing engineering quantities and cost, etc. through test on the site, dynamic value analysis, finite element unit method, the paper researchs construction technology of in - situ pile, transfer theory, thickness of supporting layer of head slab and depth of pile in karst area, provides some important conclusions, directs effectively the design and construction of this kind of projects
但因溶洞的分佈規律性差,現有勘探手段難於事先查明它的準確位置及大小,因而常常給施工帶來意想不到的問題:工期延長、工程量增加及工程費用增加等。本文通過現場試驗、理論計算和有限單元分析,對巖溶地區鉆孔灌注樁的施工工藝、荷載傳遞機理、持力層頂板厚度及嵌巖深度等方面進行了較為系統的研究,得出了一些重要結論,有效地指導了該類工程的設計和施工。The formation dynamic mechanisms is very complicated. the uplifting and thickening of crust are the result of various causes. but the main reason is the plate subduction which is the basic cause to have the gravitation, thermo - dome and stretching force become useage
青藏高原處于復雜的動力體制中,陸殼增厚和隆升是各種因素共同制約的結果,但板塊俯沖機制是主導的,是使其它力源,如重力、熱動力和張力等成為有效驅動力機制的基本因素。分享友人