肋式管 的英文怎麼說
中文拼音 [lèishìguǎn]
肋式管
英文
ribbed pipe-
Standard specification for composite ribbed steel pipe, precoated and polyethylene lined for gravity flow sanitary sewers, storm sewers, and other special applications
預塗覆和聚乙烯復合肋式鋼管標準規范The test results another is made of four welded equal - leg angles with show that the ribs ( lips ) cohere with concrete very well before the specimens are damaged, and the damage modes are mainly of shear forms
結果表明:薄壁鋼管混凝土短柱以剪切破壞模式為主;肋與混凝土在試件破壞之前,均能保持良好粘結。The software ansys6. 0 is used to analysis the stability of the state after construction of tongwamen bridge, linear method is used in analyzing the finite element model of the bridge, the coeffient of stability of different state after construction is given. on the basis, the effect of different factors such as the arrangement of lateral brace, the sloping angle of arch ribs, the stiffness of bridge deck system, the effect of non - orientedly conservative loadings of the hanger and tie bar etc is discussed. the different coefficients of stability of changing these factors are given, so the factors that are vital to the lateral stability of x - type arches are found, and the rationality of the methods taken to enhance the lateral stability of tongwamen bridge is evaluated
本文應用有限元分析商業軟體ansys6 . 0 ,採用線彈性方法,通過對該橋的空間有限元模型進行穩定性分析,得出其成橋運營階段各種工況下的穩定安全系數。在此基礎上,本文還通過有限元模型分析,就拱的矢跨比、吊桿(立柱)的非保向力效應、橋面系的剛度、橫撐布置形式、拱肋側傾角等因素對該橋整體穩定性的影響展開探討與研究。文中給出了各因素變化情況下的穩定安全系數,指出了對鋼管混凝土提籃拱橫向穩定性有顯著影響的因素及其合理變化范圍,並對銅瓦門大橋提高橫向穩定性的措施的經濟合理性進行了分析。Tube and fin radiator
肋片管式散熱器The methods of modificatory lattice cross - section and equivalent circular cfst cross - section for calculating the maximum load of dumbbell cfst columns with eccentric loading were presented in this paper. the ultimate strength of 14 specimens were calculated by the two methods were close to experimental results. finally, the two methods were used to calculate the ultimate strength of arch bridge of zhengzhou yellow river highway
對現有鋼管混凝土啞鈴形構件極限承載力的計算方法進行了分析,在此基礎上,提出了計算鋼管混凝土啞鈴形構件的偏壓極限承載力的修正的格構式截面法和等效截面法,兩種演算法的計算結果與試驗值均吻合較好,最後用這兩種演算法計算了鄭州黃河公路二橋拱肋的極限承載力。Modify above model along with altering structural form or the constitution of the bridge, such as different standard, steel ratio, steel pipe diameter, concrete module, brace allocation, the length of concrete of the main ribs, suspending pole mode and cable local vibrations, calculate the variety of dynamic character, analyze this factors which will affect. 2
對斜拉拱橋自振特性進行參數分析,分別考慮了不同規范、含鋼率、拱肋鋼管直徑、混凝土彈性模量、橫撐布置、拱肋段混凝土長度、吊桿形式對自振特性的影響,最後考慮了斜拉索局部振動對自振特性的影響。It is a top load bridge with a clear span of 288m, which is maximum one of the same structural system in asia. the main arch rib uses 8 steel tube of 920mm joined by web members and transverse truss to form a space truss. the soldier piles on the arch are made of bent frame to make the shape both artistic and novel
梅溪河大橋為一凈跨達288米的上承式鋼管混凝土拱橋,是目前亞洲同類橋型中跨度最大的橋梁,其主拱肋採用8根920mm的鋼管,通過腹桿及平聯形成鋼管混凝土空間桁架,拱上立柱亦採用鋼管混凝土排架,造型新穎美觀。The effects of various structure parameters and fins arrangement of the three dimensional extended surface on heat transfer performance in the 3 - d ift have not been studied systematically
特別是在三維內肋管肋形結構尺寸,肋排列形式等影響管內對流換熱特性因素的系統研究工作還有待于進一步的完善。3 - d ift have three fin arrangements : staggered arrangement fins, in - line arrangement fins and spiral arrangement fins. the former experimental study regressed the experimental data of all three fin arrangements and obtained the heat transfer criterion equation of 3 - d ift, while the paper sets apart the three mixed fin arrangements and applies othorgonal testing method to the 3 - d ift with staggered arrangement fins which is wide used in the engineering
原有的研究是將三種肋排列形式三維內肋管的實驗數據混雜在一起進行回歸得到三維內肋管的換熱準則式,而本文則將原有研究中混雜不清的肋排列的三種形式區分開來,並對其中在工程中應用最廣泛的肋叉排三維內肋管進行了詳細的正交試驗研究。The cfst x - type arches improve the lateral stability by sloping the arc ribs, so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span. tongwamen bridge is a half - through cfst arch bridge, its span is 238m, and the width of its roadway is 10m, so the truss ribs in - plane is sloped into x - shapc to improve its lateral stability. as the cfst x - type arches with longest span all over the country presently, the design of tongwamen bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span
鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型,在寬跨比較小的鋼管混凝土拱橋設計中應用較多。浙江銅瓦門大橋是一座中承式鋼管混凝土無鉸拱橋,跨徑238m ,橋寬10m ,拱肋為平面桁架形式,所以採用了x型拱肋以提高其橫向穩定性。作為國內目前跨徑最大的鋼管混凝土提籃拱橋,該橋的建成對我國今後長大跨徑小寬跨比鋼管混凝土拱橋採用提籃拱具有借鑒意義。Through analysis, the theoretical solution of the condensation heat transfer coefficient of horizontal tubes with annular fins is obtained. the theoretical results are compared with the experimental ones
本文通過理論推導,獲得了水平環肋管外冷凝表面傳熱系數的理論計算公式,然後把理論值與實驗值進行了比較。The paper puts great emphasis on studying the mechanical performance and the carrying capacity of concrete - filled steel tubular ( cfst ), verifies the cyclo - hoop effect which steel tubular has exert to the concrete in cfst through the tridimensional finite element analysis of the entity of the arch rib, and proves that the cyclo - hoop effect is utilized to increase the axial compression cfst member carrying capacity
本文著重研究了鋼管混凝土結構的力學性能及承載能力,通過對拱肋實體所作的三維有限元分析,驗證了鋼管混凝土拱橋中鋼管對混凝土的環箍效應,證明了由於環箍效應的存在,使內填式鋼管混凝土軸壓承載力大大提高。The experimental correlations for the forced convection - condensation heat transfer of flue gas in the heat exchanger are obtained by the experimental study result
根據實驗研究結果擬合出了肋片管式冷凝換熱器煙氣強迫對流凝結換熱的實驗關聯式。The application of the first technology can resolve the problem that the fin - root is easy to corrode, effectively reduce the contact heat resistance between the fin - root and the tube, and enhance the heat transfer performance of the heat exchanger
採用先鍍后脹再鍍加工工藝,不僅解決了肋片管式冷凝換熱器肋基處易腐蝕問題,而且明顯降低了肋基處肋片與肋管的接觸熱阻,增強了換熱器的換熱性能。Applying amorphous ni - cu - p composite electroless plating as anticorrosion plating, the heat transfer performance of the fin - tube condensing heat exchanger processed by the plating - expanding - plating technology and the expanding - plating technology is experimentally studied
摘要以非晶態鎳銅磷復合化學鍍層作為防腐鍍層,對採用先鍍后脹再鍍和先脹后鍍2種加工二藝的肋片管式冷凝換熱器進行了換熱性能實驗研究。Yesanhe bridge is a half - through cfst arch bridges, the design of yesanhe bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span
野三河大橋是一座非對稱中承式鋼管混凝土無鉸拱橋,拱肋為平面桁架形式,所以採用了x型拱肋以提高其橫向穩定性。There are two different constitution forms for the square tubes with ribs in the test specimens, one consists of two welded channels with stiffening lips ( channel tubes ), stiffening lips ( angle tubes )
根據無肋、單向設置斜肋和雙向設置斜肋3種截面形式、 2種截面尺寸的18個薄壁鋼管混凝土軸壓短柱試驗結果,比較和分析了各試件的試驗現象、破壞模式及荷載位移曲線等。In this paper, the working fluid is air. experimental study of the nine different structure parameters of 3 - d ift with staggered arrangement fins in the reynolds number range of 250 to 30000 is performed to investigate the characteristics of heat transfer and flow friction behavior. analyses and reduces the experimental data by the least square method, obtains the nusselt and fanning friction fitting criterion equations
本文以空氣為工質,在re 250 30000范圍內對九根具有不同肋形結構尺寸的肋叉排三維內肋管的換熱及流動特性進行了研究,並運用最小二乘法分析和處理實驗數據,獲得努謝爾特數,范寧摩擦系數與雷諾數,肋幾何參數的準則方程式。Ultimate load - carrying capacity of steel - tube truss rib arch bridge
空鋼管桁肋式拱橋主拱部分極限承載力分析Based on the above deduction, the numerical solution of the condensation heat transfer coefficient outside horizontal tubes with annular fins is obtained
在此基礎上,推導出水平環肋管在數值解法下的管外冷凝表面傳熱系數理論值的計算公式。分享友人