post tensioned 中文意思是什麼
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Construction of post - tensioned pre - stressed box girders for hengdaozi flyover on dandong - benxi express highway
本高速公路橫道子立交橋工程后張預應力砼連續箱梁施工 -
Suggestion to post - tensioned bounded pre - stressing construction in small - radius camber arch bridges
小半徑彎梁橋中后張有粘結預應力施工問題芻議 -
A great amount of post tensioned pre - stressing concrete single box beam for double track ( as called the box beam hereinafter ) has been used on the line. it is of infeasibility in adoption of the traditional practice of pre - fabrication in precast factory and erection of the box beam with the track laying machine for that this type of beam is characterized by new structure, complicated workmanship, large volume and difficulty in transportation. therefore, the key and hardest problem to tackle is that what processing should be adopted to precast the box beam on site and that what kind of machinery should be used to transport and erect the box beam
由於該型梁具有結構新、工藝復雜、體積大、運輸困難，將常規鐵路的橋梁廠製造橋梁、經過鐵路運梁到工地、邊鋪邊架進行橋梁製造與架設的傳統施工模式應用到該線是行不通的，必須在現場預制橋梁、並採用專門的運架梁設備進行橋梁架設，因此箱梁的製造、架設施工成為該線施工技術攻關的重點和難點。 -
Based on the experimental results, in concrete limitation stress sandwich first stage ' s ability and one - way and two - way precast slabs sandwich, results content code require - second class crack control. resistant crack calculation is appropriate. because post - tensioned prestressed advances plane ' s resistant crack. deformation and section strain measure accord with calculation results, this indicates 3d - gridding beams modulus is reasonable to precast slabs sandwich
本文通過對試驗數據的分析總結，認為：單塊夾層板第一受力階段的性能試驗及單向和雙向裝配整體式夾層板的性能試驗，滿足《混凝土結構規范》 （ gb50010 - 2002 ）中關于預應力樓板的二級裂縫控制等級的要求，抗裂設計得當；由於板縫無粘結預應力筋的存在提高了板的抗裂性。 -
Based on rizhao port bulk grain wharf construction, this paper presents a simple, practical and efficient construction technique of post - tensioned pre - stressing concrete beam and beam - slab
摘要以日照港散糧碼頭施工為例，介紹一項簡單、實用、高效的后張預應力梁及梁板的施工工藝。 -
Prestressing of post - tensioned prestressed concrete box girder
后張法預應力砼箱梁的預制施工 -
Engineering of prestressed concrete water tanks, and post - tensioned concrete water tanks. includes a virtual tank tour
-生產水處理反滲透海水淡化脫鹽除菌超濾等設備。 -
Post - tensioned pre - cast concrete simple - supported girder for railway bridge pro - stress
預應力混凝土鐵路橋簡支梁靜載彎曲試驗方法及評定標準 -
Based on the experimental study of two presstressed frames, it analyses the question of redistribution of internal force and analyses influence of moment modulation of prestressed frames. therefore, it draws some conclusion as follow : 1 ) post - tensioned prestressed frames can be practiced on moment modulation. but how to operate decides on practical situation in design
本文通過對兩榀近於足尺的后張有粘結預應力框架在跨間豎向荷載作用下的試驗研究，探討了預應力框架內力重分佈問題，從塑性內力重分佈入手分析了次彎矩對框架彎矩調幅的影響以及影響內力重分佈的其他主要因素，得到一些概念性的認識和結論： （ 1 ）對后張有粘結預應力框架可進行適當調幅。 -
Post - tensioned prestressing concrete beam
后張法預應力混凝土梁 -
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 -
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。 -
Especially the bridge engineering has to be concerned with high, new and difficult technologies. new technologies firstly adopted are post - tensioned prestressed concrete simply - supported box girder, assembly two - way prestressed concrete simply - supported t - girder, reinforced concrete continuous rigid frame, and steel - concrete composite continuous girder. all these have formed a series of new bridge structures taking prestressed concrete simply - supported box girder as main feature
由於秦沈客運專線的特殊技術要求，在鐵路建設史上首次採用了后張法預應力混凝土箱形簡支梁、裝配式雙向預應力混凝土t形簡支梁、鋼筋混凝土剛構連續梁、鋼與混凝土結合連續梁等橋跨結構，形成了以預應力簡支箱梁橋跨結構為主要特徵的一系列橋梁新結構。 -
In the last part, we researched the bending strength of post - tensioned and cohesionless cfrp tendon concrete beams. in this part we summarized the performance of bearing, deflection and crack of the beams. at the same time, we introduced the research about the anchorage device and the prestressing loss
另外，在試驗分析的基礎上，我們運用有限元分析軟體ansys對碳纖維塑料筋普通混凝土梁在三分點豎向荷載作用下的受力狀況進行了模擬，得出了詳細的計算結果。 -
Measurement of tension and anti - side bend of 40m i post - tensioned prestressed beam
后張法預應力工型梁張拉及抗側彎措施 -
A historical analysis in theory is carried on studying redistribution of internal force in the bonded post - tensioned partially prestressed concrete framesin this paper
本文編制了變剛度分析程序，重點研究了后張有粘結部分預應力混凝土框架的塑性內力重分佈的規律。 -
At first, this thesis analyzes the main causes in theory, which have effects on the redistribution of internal force and modulation of moment for the bonded post - tensioned partially prestressed concrete frame ( for short prestressed frame ), including the relative height of compressive zone of section ( ), secondary moment and types of load applying. then, this thesis analyzes the test of prestressed frame. then, a method, called curvature - force method, for nonlinear analysis of prestressed frame is put forward
本文首先從理論上分析了影響后張有粘結部分預應力混凝土框架（簡稱為預應力框架）內力重分佈和彎矩調幅的主要因素，即相對受壓區高度、次彎矩和加載方式等，並初步分析了兩榀只加豎向荷載和兩榀既加豎向荷載又加水平荷載的單層單跨預應力框架靜力加載的試驗。 -
The current approaches including code methods to calculate stress losses due to anchorage set exist several shortcoming, such as unsuitable to different profiles of tendons or very complicated to compute due to sectional analysis. based on classical theory of friction when tendons are stretched in post - tensioned concrete members, the unified method to calculate the stress losses in tendons due to anchorage set while considering the affection of reverse friction has been established, these formulae are suitable to be used in computer ; also approximate formulae are produced which are suitable to manual computation, they are easy to be applied in research or design
針對目前預應力鋼筋錨固時鋼筋回縮引起的預應力損失計算方法中存在的問題，建立了考慮反摩阻影響的后張法預應力混凝土橋梁錨固損失的統一計算式，適用於任意形狀的預應力鋼筋和單、雙端張拉的情形；給出了適于機算的理論公式和適于手算的近似計算式，可方便地應用於研究和工程實踐。 -
The prestressed concrete with unbonded tendons has developed in china for recent ten years. this improves normal post - tensioned prestressed concrete construction method and simplifies construction technique
無粘結預應力混凝土技術在我國是近十年來發展起來的，它改進了通常的后張預應力施工方法，簡化了后張預應力施工工藝。
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