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prestressed reinforcement是什麼意思,prestressed reinforcement的意思翻譯、用法、同義詞、例句

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常用詞典

  • 預應力鋼筋

  • 例句

  • The third is that the tension of prestressed reinforcement should adopt the repeat tension construction method.

    預應力筋張拉宜采取初拉及複拉的施工方法。

  • The effect of grouting of the ducts in the prestressed concrete structures is directly related to the corrosion of the prestressed reinforcement bars.

    預應力混凝土結構中的孔道壓漿效果,直接關系到預應力筋的防腐問題。

  • In recent years, round steel bar, deformed steel bar and helical rib steel wire for prestressed concrete are new kinds of high strength prestressed reinforcement.

    螺旋肋鋼絲、異形鋼棒和光圓鋼棒是近年開發的高強鋼絲新品種。

  • In the case of a given shape of structure cross-section, the optimum total of prestressed reinforcement and the optimum ratio of the prestressed and non-prestressed reinforcement can be o…

    在給定截面形式下,求解滿足結構性能約束和構造約束條件的預應力筋最優用量以及預應力筋與非預應力筋的最優比值。

  • The paper introduces the calculation methods of extension of prestressed reinforcement combining with project instance.

    本文結合工程實例,介紹預應力鋼筋張拉時理論伸長值的計算方法。

  • This paper provides guiding suggestions for the arrangement of the prestressed reinforcement and the construction of the concrete platform.

    為混凝土平台中預應力鋼筋的布置和施工提出了指導意見。

  • The present method provides a new way for the distributed stress measure of large structures, especially the prestressed reinforcement in prestressed concrete structures.

    該傳感測試方法為大型結構特别是預應力混凝土結構中預應力筋的應力分布測試提供了新的解決思路。

  • This article firstly formulate theory of loss of circumferential prestressed reinforcement.

    本文闡述了環向預應力筋損失理論;

  • The development of transport system facilitates the adoption of prestressed reinforcement concrete bridge piers.

    我國交通系統的完善促進了預應力混凝土橋墩在橋梁建設中的應用。

  • Secondly, I have researched the influence of prestressed reinforcement on the torsion of curved girder bridges.

    其次,研究了預應力混凝土曲線梁橋中預應力鋼束對曲線梁橋扭矩的影響。

  • It is concluded that calculation results of longitudinal temperature strain are limited by the accuracy of numerical simulation of longitudinal prestressed reinforcement.

    并得到縱向預應力鋼筋的準确模拟對結構縱向應變計算精度影響較大的結論。

  • The sensing system provides a new exploration into the quasi-distributed stress monitoring of prestressed reinforcement.

    此傳感系統的研究為預應力筋應力狀态的準分布測試探索了一條新的解決途徑。

  • 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 …

    在次梁與闆中為有效利用無粘結預應力筋,建議在闆厚許可的情況下盡量采用曲線形預應力筋。

  • The prestressed reinforcement fixed end anchorage of the utility model can satisfy a requirement that concrete column or wall is constructed precede beam or plate.

    本實用新型預應力筋固定端錨具可滿足混凝土柱或牆先于梁或闆施工的要求。

  • The number and layout of the prestressed reinforcement are calculated using the equivalent load method according to the normal use limited state of the transferring thick plate.

    利用SAP93軟件,根據某高層結構預應力混凝土轉換厚闆的正常使用極限狀态,用等效荷載法确定了預應力鋼筋的數量和布置方式;

  • In the case of a given shape of structure cross-section, the optimum total of prestressed reinforcement and the optimum ratio of the prestressed …

    在給定截面形式下,求解滿足結構性能約束和構造約束條件的預應力筋最優用量以及預應力筋與非預應力筋的最優比值。

  • Prestressed reinforcement effect can offset the tank circumferential wall stress play a role.

    預應力筋效應能對儲罐外牆起到抵消環向應力的作用。

  • The experimental results show that the ductility of the beams decreases gradually with the increasing of non prestressed and prestressed reinforcement index in the strained zone;

    試驗結果表明,隨着受拉區非預應力筋配筋率和預應力筋配筋率的增大,梁的延性逐漸減小;

  • The propagation rule of maximum crack widths of P. P. C members and the stress growth law of prestressed reinforcement and ordinary steel reinforcement are obtained.

    得到了預應力筋和普通鋼筋的應力增長規律,預應力混凝土構件最大裂縫寬度擴展規律;

  • In the case of a given shape of structure cross-section, the optimum total of prestressed reinforcement and the optimum ratio o…

    在給定截面形式下,求解滿足結構性能約束和構造約束條件的預應力筋最優用量以及預應力筋與非預應力筋的最優比值。

  • Drainage measures and prestressed anchor reinforcement are used by considering the slope structure, rainfall, earthquakes and cost factors comprehensively.

    綜合考慮邊坡岩體結構特征、降雨和地震以及工程費用方面的因素,推薦采用排水和邊坡預應力錨索加固措施。

  • This dissertation mainly stu***s flexural behavior of concrete beams prestressed with AFRP reinforcement, and the anchorage system of FRP reinforcing bars is stu***d too.

    本文主要進行FRP筋材的預應力錨固體系和預應力AFRP筋混凝土梁的受彎性能研究。

  • There is another experimental study and theoretical analysis on flexural behavior of concrete beams prestressed with FRP reinforcement in this dissertation's.

    同時本文針對非預應力FRP筋混凝土存在較大裂縫和撓度的特性進行了預應力FRP筋混凝土梁的抗彎性能的試驗研究和理論分析。

  • In recent years, the mixed reinforcement partially prestressed concrete (P. P. C) has been widely used in the engineering structure, especially in great size structures.

    近年來,混合配筋部分預應力混凝土在工程結構中已經普遍使用,特别是在大尺寸的結構當中。

  • 同義詞

  • |deformed bars;預應力鋼筋

  • 專業解析

    預應力鋼筋(Prestressed Reinforcement)是土木工程中一種關鍵的建築材料與技術,主要用于增強混凝土結構的性能。其核心原理是在混凝土澆築前或硬化後,預先對高強度鋼筋或鋼束施加拉力,使混凝土在承受使用荷載前就産生壓應力,從而顯著提升構件的抗裂性、剛度和承載能力。

    詳細解釋:

    1. 預應力(Prestressed)的含義:

      • 指在混凝土結構承受外部荷載(如自重、活荷載)之前,通過張拉高強度鋼材(鋼筋、鋼絲或鋼絞線),人為地在混凝土内部引入可控的壓應力。
      • 這種預先施加的壓應力,可以部分或全部抵消外部荷載在混凝土中産生的拉應力。由于混凝土抗拉強度低而易開裂,預壓應力的存在能有效延緩或防止裂縫的出現和發展。
    2. 鋼筋(Reinforcement)的作用:

      • 在此語境下,特指用于施加預應力的高強度鋼材,而非普通鋼筋混凝土中的鋼筋。常見形式包括:
        • 預應力鋼絲(Prestressing Wire): 單根高強度鋼絲。
        • 預應力鋼絞線(Prestressing Strand): 由多根鋼絲撚制而成,強度高、粘結性好,應用最廣泛。
        • 預應力鋼筋(Prestressing Bar): 高強度合金鋼制成的粗鋼筋。
      • 這些鋼材的抗拉強度遠高于普通鋼筋(通常可達普通鋼筋的3-4倍),是傳遞和儲存預應力的關鍵載體。
    3. 技術原理與優勢:

      • 抗裂性提升: 預壓應力抵消了荷載産生的拉應力,使混凝土構件在更大荷載下才可能開裂,甚至實現“無裂縫”設計,提高結構耐久性和防水性(如儲罐、水管)。
      • 剛度增加: 預應力使構件在使用荷載下變形(撓度)更小,結構更“硬挺”。
      • 承載力提高: 更有效地利用高強度鋼材和混凝土的強度潛力,可設計出更薄、跨度更大的構件(如大跨度橋梁、屋架),節省材料,減輕自重。
      • 疲勞性能改善: 應力變化幅度減小,有利于承受反複荷載的結構(如吊車梁、鐵路橋梁)。
    4. 施工方法:

      • 先張法(Pretensioning): 鋼筋先在台座上張拉至預定應力,然後澆築混凝土;待混凝土達到一定強度後,放松鋼筋,鋼筋回縮通過粘結力将預應力傳遞給混凝土。常用于工廠化生産梁、闆等标準化構件。
      • 後張法(Post-tensioning): 先澆築留有孔道的混凝土構件,待其達到強度後,将鋼筋穿入孔道進行張拉并錨固在構件端部,最後向孔道内壓漿保護鋼筋。適用于現場澆築的大跨度結構、曲線配筋等複雜情況。

    權威參考來源:

    網絡擴展資料

    prestressed reinforcement 是土木工程中的專業術語,結合“預應力”和“鋼筋/加固材料”的概念,具體解釋如下:

    1.詞義分解

    2.整體含義

    prestressed reinforcement 指通過預先施加拉應力來增強結構性能的鋼筋或加固材料。其核心目的是提升結構的承載能力、減少裂縫和變形。

    3.技術應用

    4.實際場景

    常見于橋梁、高層建築等,如:

    5.相關公式(示例)

    預應力混凝土的應力計算可簡化為: $$ sigma{total} = sigma{pre} + sigma{load} $$ 其中,$sigma{pre}$為預應力,$sigma_{load}$為荷載應力。

    如需更深入的技術細節,可參考工程規範或專業文獻。

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