預力鋼線 的英文怎麼說
中文拼音 [yùlìgāngxiàn]
預力鋼線
英文
colo piano wire-
The results indicate that the ratio of span to rise, the ratio of reinforcement and the stretching controlling stress are the three primary influencing factors to the failure pattern of the slab. in addition, the relationships between the ratio of deflection to span and the ratio of span to rise and the stretching controlling stress submit to linear curves, the relationship between the ratio of deflection to span and the ratio of reinforcement submits to a quadratic parabola curve
運用數值分析程序計算了175組不同跨高比、配筋率、張拉控制應力的中強（ 1270mpa ）螺旋肋鋼絲預應力空心板，結果表明跨高比、配筋率、張拉控制應力是影響空心板破壞形態的主要因素，且構件撓跨比與跨高比和張拉控制應力呈線性關系，與配筋率呈二次拋物線關系。The prime works are as follows : strain and stress distribution of section was analyzed. the effect of prestress degree. on cracking moment was explored. the relation of the unbonded prestress increment to effective reinforcement index and corresponding bonded prestress increment were studied. the formulae had been established
其次，設計了三根活性粉末混凝土無粘結預應力疊合梁，兩點對稱集中加載、一次受力，得到了它們的截面應變分佈、撓度與變形、無粘結預應力鋼絞線的預應力增量、裂縫的發展與分佈以及極限荷載。Hot rolled wire rods for prestressed steel wires and wire ropes
預應力鋼絲及鋼絞線用熱軋盤條Spring steel wire, hose wire, galvanized steel wire, galvanized steel strand, tempered type bead wire, cold drawing bead wire, tyre bead wire, frestressed concrete p. c. wire and so on
彈簧鋼絲膠管鋼絲輪胎鋼絲鍍鋅鋼絲鍍鋅鋼絞線回火胎圈鋼絲冷拉胎圈鋼絲輕載輪胎圈鋼絲預應力鋼絲及鋼絞線等。Steel products - prestressing steels - part 3 : strand
鋼製品.預應力鋼.第3部分:鋼絞線Series of ym prestressing strand anchorage and coupler for highway bridge
公路橋梁預應力鋼鉸線用ym錨具連接器規格系列Test method and inspect rules of prestressing strand anchorage and coupler for highway bridge
公路橋梁預應力鋼鉸線用ym錨具連接器試驗方法及檢驗規則The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable
本文的主要工作是：對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結，指出當前預應力鋼結構工程實踐中存在的主要問題；闡述了預應力鋼結構的受力機理，並指出預應力鋼結構的適用范圍和特點；在考慮結構應力和變位約束的條件下，建立預應力鋼結構優化設計模型；提出多次預應力鋼結構優化設計方法和步驟，採用線性規劃和滿約束準則相結合的優化方法，可優化設計出施加的每一級預應力的大小，並得到結構各部分的優化截面；對多次預應力最佳的施加次數作了分析，並建議以2 3次為宜；為驗證文中理論和方法，分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計，經濟效益明顯；對水平平行弦鋼桁架的幾種施加預應力的方案進行比較，對于局部布索，預應力只對下弦起到卸載作用，對上弦和腹桿基本不起作用；而整體布索預應力除對下弦卸載外，對索折點以外部分腹桿也起到卸載作用，經濟效益好於局部布索。In this paper, the three level fortification criterion, two stage design method and the elastic response spectrum theory are adopted, and the program of nba ( the program of nonlinear - aseismic analysis for beam bridge ) is used to calculate. through gathering, analyzing and calculating a lot of bridge design materials, this paper induces a simple way to calculate the relative displacement of the beam and the pier, and then according to the current design method, it concludes a better design principle of the supporting length of the beams. at the same time the dynamics is adopted to put forward the design method of the carrying capacity and the lengthen of prestress wire ( steel bar ) falling - off prevention structures of highway bridges
本論文採用三水準設防、兩階段設計方法、彈性反應譜計算理論，運用橋梁結構非線性地震響應分析程序nba （ theprogramofnonlinear ? aseismicanalysisforbeambridge ）進行計算；通過收集大量的實橋設計資料，經分析計算，歸納總結出計算上下部結構相對位移的簡便計算方法；並綜合國內外的經驗值，提出梁的支承長度se的設計原則；同時運用動力學突加荷載的原理，推導分析了預應力鋼絞線式（鋼棒連接式）落梁防止裝置設計承載力的計算方法和設計伸長量s _ f的取值；最後本文通過實橋計算，說明了落梁防止系統設計的方法。Secondly, the basic principle on optimal design of structure is presented. based on the characteristics of aqueduct - stayed optimal design, cable optimization, aqueduct body selection optimization and aqueduct body vertical section optimization are included. the prestresses of cable - stayed, the dimension of aqueduct and the number of reinforcing steel bar are chosen as the design variables
根據斜拉式渡槽優化設計的特點，本文將槽身優化分為索力優化、槽身橫斷面優化以及槽身縱斷面優化三個方面進行優化設計，確定斜拉索預應力、槽身斷面尺寸、槽身橫向及縱向預應力鋼鉸線配筋數量等槽身設計的主要變量。Combined with the full scale models tested in - situ of prestressed concrete penstock with double circle unbonded strands and single circle bonded strands of xiaolangdi multipurpose dam project of yellow river, the advantages and disadvantages of two different prestressed systems are analyzed, the concrete stress distributions of the prestressed concrete penstock are induced and summarized during the whole tensioning strands stage. the consistence among the test results, the theory calculating and the three dimensional finite element analysis is proved. therefore, the theoretical method of prestressed concrete penstock is feasible
結合黃河小浪底水利樞紐工程在施工現場進行的採用雙層雙圈環形無粘結預應力鋼絞線和單圈有粘結預應力鋼絞線對排沙洞襯砌混凝土施加預應力的1 ： 1模型試驗，對比分析了兩種后張預應力施工體系的優劣，歸納總結了預應力筋束張拉過程中預應力混凝土壓力管道結構管壁混凝土的內力分佈規律，驗證了模型試驗實測數據、理論計算和三維有限元分析結果的一致性，確定了預應力混凝土壓力管道理論計算方法的可行性。This paper contains following parts : the first section : based on the product technics, designed the hardware structure and the software. the anti - jamming technique also be discussed
主要內容如下：一、首先根據低鬆弛預應力鋼絲穩定化處理生產線的工藝要求，設計了控制系統的硬體、軟體，並且就系統的抗干擾措施進行了討論。Because of the former anchorage systems designed according to matching 1860mpa strength strands in the beginning of 90 ", they can not be suitable any more for the super strength strands with 2000mpa. therefore, some accidents occurred such as strands sliding and broken when tensioning. in addition, the advantages of the new materials as their high mechanics performance are not be used completely as the prestressing structures was designed as per the 1860mpa strands, which will result in the waste of materials, in view of the above - mentioned facts, by means of analyzing the development of anchorage systems home and abroad, in connection with the characteristics of the super strength strands ( 2000mpa ), this topic made a research on hvm15 anchorages by theoretical calculation and finite element analysis, and also on the manufacturing process and test
隨著預應力技術的發展和冶金工業冶煉技術的不斷進步，預應力鋼絞線的強度不斷提高，由原來1470mpa提高到1860mpa ， 90年代末期已出現了2000mpa超高強鋼絞線，而原來的是在90年代初期按抗拉強度為1860mpa的鋼絞線標準設計的，因此，原有的錨具已不能適應現有超高強度2000mpa的鋼絞線強度要求，在工程中出現了斷絲滑移現象，同時，在使用和設計時仍按1860mpa鋼絞線的指標進行設計應用，沒能充分發揮材料的力學性能，造成材料浪費。The former model of staged loading and staged optimization is improved, in which the value range of pre - stress restrict in restrict equation. it provides the theoretical base for the loading time of multi - pre - stress and the value of pre - stress. and examples analyzed with linear programming and full - constrained methods prove the convergence effect well
論文在單次預應力鋼結構的優化模型的基礎上，建立了多次預應力鋼結構的優化模型，將原有的分級加載，分級優化的模型加以改進，在優化模型中將約束方程中的預拉力約束的取值范圍擴大，使得多次預應力的施加次數、施加預拉力的數值大小的確定有了理論根據，並利用線性規劃和滿約束結合的方法進行求解，通過算例分析，收斂效果較好。Nonlinear analysis method on the mechanical behavior of preflex composite beams was established with the nonlinear stress - strain curves of materials
摘要採用材料非線性本構關系研究預彎組合梁的受力行為，建立預彎組合梁從預彎鋼梁加荷到結構破壞的非線性全過程分析方法。Computation of stretching extension of post - tensioned prestressed strand
后張法預應力鋼絞線張拉伸長值的計算Unbonded prestressing steel strand
無粘結預應力鋼絞線Standard specification for filled epoxy - coated seven - wire prestressing steel strand
填充式環氧樹脂塗層的7股預應力鋼絞線標準規范Accurate calculation and application of extension value for post - tensioned prestressing steel strand
后張法預應力鋼絞線伸長值精確計算及工程應用In this paper, combined with an engineering example, the calculation procedure and theoretical foundation for the theoretic elongation of post - tensioned steel strand of parabola - shape has been given
結合一工程實例，闡述了預應力鋼絞線理論伸長值的計算過程及理論依據。分享友人