prestressed continuous beam 中文意思是什麼

prestressed continuous beam 解釋
預應力連續梁
  • prestressed : 安裝預應力
  • continuous : adj. 1. 連續的，繼續的，無間斷的。2. 【植物；植物學】無節的。adv. -ly
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  1. To study the flexural behavior, ultimate bearing state and laws of internal force redistribution of prestressed concrete continuous beams cast by different construction methods, the model tests for three pieces of the continuous beams were carride out, in which three kinds of the construction methods, such as those of lowering formwork supports at one time, transferring simply - supported structure into the continuous one and casting the beam by cantilever construction, were considered

    摘要為研究不同施工方法下預應力混凝土連續梁的彎曲性能、極限受力狀態及內力重分佈規律，進行了3根連續梁模型試驗，分別考慮一次落架、簡支變連續和懸臂施工3種施工方法。
  2. This paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it

    建立預應力混凝土連續梁橋預應力度的模糊優化問題，按-水平截集解法，將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后，只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想，並以一實例說明其理論應用
  3. Abstract : this paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it

    文摘:建立預應力混凝土連續梁橋預應力度的模糊優化問題，按-水平截集解法，將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后，只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想，並以一實例說明其理論應用
  4. In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, at the same time, the effecting parameter has collected. the paper build the ann model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn. according to them, ann is applied in the construction control of prestressed concrete continuous bridge

    本文以大橋成橋線形滿足設計要求和成橋內力控制在設計容許范圍內為目的，運用現代控制理論的思想，引用神經網路基本原理，詳細介紹bp神經網路的研究過程，從而建立預應力混凝土連續梁橋施工預拱度的神經網路模型，並詳細討論了模型的神經網路結點信息的提取，在工程實例的基礎上進行了數值計武漢理工大學碩士學位論文算，數值表明，將神經網路應用於預應力混凝土連續梁橋施工控制，獲得了滿意的結果，在預應力混凝土連續梁橋施工控制技術研究方面，具有方便有效、精度高的優點，具有良好的應用前景。
  5. The prestressed continuous beam - arch composite bridges are a special structural system where the horizontal thrust of the arch rib is absorbed by a prestressed tie at deck level. in some cases, this type of structure is preferable because it does n ' t have the large thrust at the spring hi traditional arch bridges and the somewhat large bending moment and shear force in traditional beam bridges. as a result, the performances of the prestressing reinforcement can be efficiently utilized

    它利用拱肋承擔壓力，系梁預應力束抵抗拱端推力，吊桿及縱橫橋面系結構承受橋面荷載，既克服了傳統拱橋巨大的拱端推力，又改善了連續梁橋較大的彎矩和剪力的受力狀況，最大限度地發揮了拱梁混凝土和預應力鋼筋各自的特點，經濟效益顯著。
  6. The paper, in the light of my bureau ' s construction experience and project practice in constructing large span prestressed continuous beam bridge ( continuous rigid frame ) in recent dozens of years, introduces a new thinking about the standardized design of cable - stayed hanging basket and the standardized construction technology of the continuous beam bridge ( continuous rigid frame ), gives the detailed account of a series of construction technique and achievements such as : the development and construction ways of large span continuous beam bridge, the standardized design thinking and operation of cable - stayed hanging basket, the standardized construction technology of the continuous beam bridge ( continuous rigid frame ) etc., meanwhile, it is attached with a whole set of detailed standardized design sample drawings of cable - stayed hanging basket

    本文根據我局十幾年來修建大跨度預應力連續梁（連續剛構）橋的施工經驗和工程實例，介紹了一種斜拉式掛籃標準化設計的新思路及連續梁（連續剛構）橋標準化施工工藝。詳細敘述了大跨度連續梁橋的發展、施工方法、斜拉式掛籃標準化設計思路及做法、連續梁（連續剛構）橋標準化施工工藝等一系列施工技術及成果，並附有全套詳細的斜拉式掛藍標準化設計定型圖。對同類型橋梁的施工及掛籃設計具有參考價值。
  7. Because of its advantages to resolve the lacking of stiffness of concrete beam, to nicely control the development of the cracks and deflection, and also because of its nice economy in use, prestressed concrete has been widely used in long span continuous frame

    預應力技術由於能解決大跨度結構中混凝土梁的剛度問題，很好的控制結構的裂縫和撓度，具有良好的經濟性能，因而廣泛地應用於大跨度連續框架結構中。
  8. For example, the large friction loss of prestressed tendons, complex anchorage bearing joint, the problem of cracks in large area structure, axial compress of long span continuous beam under prestress. all those hinder its use in long span structure. until now days, the cognition about the behavior of such structure under loads is not enough for the realm of prestressed concrete of all the world

    但是，預應力技術應用於大跨連續框架結構，在設計和施工中還存在一些缺點和不足，例如預應力筋的摩擦損失過大，節點錨固區設計和構造復雜、大面積結構的裂縫控制問題、大跨框架梁在預應力作用下的軸向縮短等，這些都是困擾大跨預應力混凝土框架結構應用的突出問題，特別是目前對于預應力混凝土超靜定結構的受力性能，國內外預應力界的認識尚不夠全面。
  9. At present, crack phenomenon always appears in long span prestressed concrete continuous beam bridges used, the reason of which is that the structure prestressed loss is estimated lower

    目前，在部分已建成運營的大跨度預應力混凝土連續梁橋的不同部位出現了不同程度的開裂現象，多數是由於施工時對結構預應力損失估計不足所造成的。
  10. In recent years prestressed concrete continuous beam bridge is applied widely with strong rivalrousness

    預應力混凝土連續梁橋以其強大的競爭力，近年來得到迅猛發展。
  11. Its main span, which is 60m long, is made up of prestressed concrete continuous beam. the fourth pier, one of the main piers, adopts the compound foundation constituted with double - siding steel cofferdam and drilled shafts which stands on the deep - water and slopping river bed where geological condition is very complex, so the cofferdam has the trend of slippage

    渝懷鐵路第20標段阿蓬江大橋全長343 . 06m ，主跨為60m的預應力混凝土連續梁， 4 #墩是其一個主墩，基礎採用雙壁鋼圍堰與鉆孔樁相結合的復合基礎。
  12. Throw the research we can get the performance of the joint of the unbond precast and pretressed continuous beam and how the moment redistributes. we got the conclusion that compare the monolithic prestressed continuous beam, the unbond precast and pretressed continuous beam has short amplitude modulation capacity

    得到預制預應力連續梁接縫處的受力性能，內力重分佈的表現形式，並認為在極限荷載下預制預應力連續梁的調幅能力低於整澆式連續梁等特性。
  13. In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, genetic algorithms is applied in the construction control of prestressed concrete continuous rigid frame " bridge. it is successful for used in caidian bridge in wuhan. on the bridge construction control technique, attempted a new method

    本文以大橋成橋線形滿足設計要求和成橋內力控制在設計容許范圍內為目的，運用現代控制理論的思想，將遺傳演算法應用於預應力混凝土連續剛構橋施工控制，獲得了滿意的結果，在預應力混凝土連續剛構橋施工控制技術研究方面，進行了一種新的嘗試。
  14. Firstly, the paper sums up program foundation of the auto design system for the structure of prestressed composite slab, in which object - oriented programming and multi - language programming are discussed emphatically. secondly, the paper illustrates program design of the auto design system in preprocess section, analyses calculation section and postprocess section respectively, in which the function design of the intellectualized collocation, the continuous beam model, the check of the precast slab, auto generation of the calculations and shop drawings is described weightily. finally, the practical design methods and process of the structure system of prestressed composite slab are expatiated by representative example

    在綜述了預應力樓蓋體系以及計算機輔助設計的相關內容，分析了國內外研究現狀，研究了疊合樓蓋的受力機理、抗彎抗剪性能以及經濟指標后，文中首先概括了預應力疊合樓蓋體系自動設計系統的編程基礎，其中重點討論了面向對象程序設計和混合語言編程技術；然後分前期處理、分析計算、後期處理三部分，詳細說明了預應力疊合樓蓋體系自動設計系統的程序設計，其中突出描述了程序所特有的智能布置、連續梁模型、預制板校核、生成計算書及施工圖等功能的設計；最後用實例講述了預應力疊合樓蓋體系的實際設計方法及步驟。
  15. Linetype control of composed beam of prestressed concrete continuous rigid frame and continuous box - beam

    預應力混凝土連續剛構和連續箱梁組合梁線型控制
  16. Based on such characteristics and the researches of the country and outside, this paper mainly studies at the automatic distribution of prestressing cables of prestressed concrete beam bridge and the automatic working drawing of the steel bundles. in this paper, based on the study of the group of the project, it sets up a fuzzy optimum math - model of the prestressed degree for prestressing cables disposition of prestressed concrete continuous beam bridges. and in the drawing of the steel bundles, the set up of the " prestressing cable model " makes its course convenient

    本文針對現有的橋梁cad系統的不足，從工程實際應用的角度出發，初步構想了預應力混凝土梁橋cad系統的框架，並主要在其自動配束以及預應力鋼束布置圖的自動繪制方面作了一定的分析與研究：在配束方面，根據其設計的特點及存在預應力束調配過程煩瑣的現象，引入數學方法，基於模糊集合和預應力度的概念，初步探討了連續梁橋預應力鋼束自動配置的機理；在鋼束圖的繪制上，根據對鋼束特點的分析，提出了「鋼束模型」的概念，對預應力束進行描述，並給出了控制「鋼束模型」以及鋼束布置的參數，據此，作者採用fortran語言編寫了鋼束布置圖的繪製程序，實現了鋼束布置圖的自動繪制。
  17. At first, the soft of bridge structure, gqjs, is used to calculate the structure of prestressed concrete continuous beam bridge and the deformation and stress of the concrete box beam are given out ; then by measuring and analyzing the datum of the stress in the prestressed steel rope and the stress of section in the concrete box beam, this article presents two ways to identify the reasonable friction deviation factor k between longitudinal prestressed tendons and the wall of duct ( indirectly and directly ), and discover the regular pattern of prestressed friction loss

    首先運用橋梁結構分析專用軟體gqjs對預應力混凝土連續梁橋進行結構計算，得到了各施工工況下混凝土箱梁的撓度和截面應力；然後給出了識別引起結構預應力損失的孔道偏差系數k的兩種方法（間接法和直接法） 。通過對測得的預應力索沿程應力和混凝土箱梁截面應力數據的分析處理，得到了合理的預應力孔道摩擦偏差系數及預應力摩阻損失規律。
  18. In this thesis, the primary principles and construction technology of twice pre - stressed composite structure are introduced based on the experimental study on a two - span twice - prestressed continuous beam

    並通過一根兩跨二次預應力連續梁的製作，介紹二次預應力組合結構的基本原理和施工工藝等。
  19. By way of these tendons, precest beams and columns can be assembled conveniently, and the joints and frame are monolithic and continuous. consequently, compared with common reinforced concrete frams, this kind of frame systems possess higher reliability and solved the problems in the process of assembling prestressed concrete frames. also it forms the framework of subassemblage and prestressed concrete frames, and explores a new way for industrial production of prestressed structures. by analyzing this system, a series of conclusion are provided, incluing modulation of bending moment produced by vertical loads within beam end, secondary internal forces produced by pretress force, shear resistance of the end of beams, the influence of lateral restrains. theresearch results of this paper are proved to be practical. some advices are also brought forward on the design process

    后張預應力筋既可作為施工階段拼裝手段，又可在使用階段承受梁端彎矩，構成整體受力節點和連續受力框架，克服了裝配式節點受力可靠性差的缺陷，解決了預應力混凝土框架難以裝配的問題，形成預制預應力混凝土裝配整體式框架，開辟了預應力結構工業化生產的新途徑。本文針對預壓裝配式預應力混凝土框架，從豎向荷載作用下的梁端彎矩調幅、施加預應力在框架中產生的次內力、梁端抗剪承載力、考慮側限的無側移框架的承載力分析四個方面對該種裝配式結構體系的性能做了詳細的研究。
  20. The precast and pretressed continuous beam is differente from the monolithic prestressed continuous beam in capability. so there shoule be difference in performance on load. because of little research in this field, i designed and tested three beams which is two - span continuous beams

    由於裝配式預應力混凝土連續梁與通常的整澆式預應力混凝土連續梁的性能有較大的區別，其受力性能也應有所不同，但目前在國內外對此類結構形式還缺乏較為系統的研究。
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