prestressed tendon 中文意思是什麼
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The author redesigned the common concrete beams and carried out a comparative analysis to the existing beams according to the specification for design of reinforced concrete and prestressed concrete highway bridges and culverts ( jtj023 - 85 ), the specification for design of reinforced concrete and prestressed concrete highway bridges and culverts ( informal version for advices ) and relevant rules of its matching stipulations, light aggregate concrete bridge technology stipulations ( ( informal version for advices ) and on the basis of prestressed concrete theory. the thesis emphasized on the research of the variation of the concrete, prestressing tendon quantities, their spans, beams " height and their rigidity of both the designed beams and the existing beams, and obtained the quantitative results from above research
採用hslc置換梁體中的普通混凝土，並運用預應力混凝土理論，依據《公路鋼筋混凝土及預應力混凝土橋涵設計規范》 （ jtj023 - 85 ） ， 《公路鋼筋混凝土及預應力混凝土橋涵設計規范》 （徵求意見稿）和與之配套編制的《輕骨料混凝土橋梁技術規程》 （徵求意見稿）的有關規定，對上述普通混凝土梁進行了重新設計並與既有梁進行了對比分析，得出了設計梁與既有梁在混凝土及預應力筋用量、跨度、梁高以及剛度等方面的變化情況，得到了定量結果。 -
On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer, the principle of prestressed iendon layout for three - span prestressed concrete deck arch bridge is illustrated
摘要在分析預應力布置位置對三跨上承式拱橋內力和拱腳推力影響的基礎上，闡明了該類橋型預應力筋的布置原則。 -
Relaxation of prestressed tendon
預應筋鬆弛31 -
Cfrp tendon is a new composite material manufactured by special technology, it has many advantages such as high - strength, low - density, better corrosion - resistant and so on, so it can potentially replace steel tendons in normal concrete structures and prestressed concrete str uctures, particularly in areas where corrosion is a problem
碳纖維塑料筋是採用特殊工藝製造的新型復合材料，它具有強度高，密度小，耐腐蝕等優點，能夠取代普通混凝土結構和預應力混凝上結構中的普通鋼筋和預應力鋼筋，尤其是在鋼筋銹蝕問題嚴重的地區。 -
This thesis aims to analyze how to select and assign prestressed tendon, how to design anchorage bearing joint, how to control the crack, how to calculate the axial prestressed force and the third moment and how to design the edge column of top layer. on the base of the research in and out our country and construction of the prestressed structure, some helpful conclusion and suggestion are presented, which is suggestive for the design and construction of long span continuous prestressed concrete frame
本文將綜合設計與施工兩個方面，對預應力筋的選用、布置，錨固區的設計及構造處理，裂縫問題，側向約束對梁軸向預壓應力及柱中第三彎矩的影響，頂層大跨邊柱設計等幾個問題進行系統的分析研究，並在國內外研究和大量工程實踐的基礎上，提出了一些建議和預防措施，對此類工程設計和施工有一定的參考價值。 -
This paper mainly describes the constructions of the formwork which is used in the monorail transit system in chongqing, and indicates that during the track girders ' fabrication, it is very important to pay attention to steel fabrication, orientation of conduct for tendon passing, the mixing, molding and maintaining of the concrete and the stretching of the prestressed tendon
介紹了重慶市單軌交通系統中的預應力混凝土軌道梁模板的構造，並闡述了在軌道梁製作過程中應重點做好鋼筋製作、預應力管道定位、混凝土拌制、成型、養護及預應力筋張拉等工序的工作。 -
In this paper, the best reinforcement scheme, which was found by nerve network and genetic algorithm from serval reinforcement schemes, was applied to strengthen a prestressed concrete continuous rigid fame bridge with many quanlity faults, such as excess fall deflection of the main span deck > serious web slop crack existing between main pier abutment and one fourth span, and very poor mud jacking quanlity in the prestressing tendon tubs
本文針對某預應力混凝土連續剛構橋所存在的實際問題：如主橋橋面下撓度過大；主墩和四分之一跨徑處均存在較嚴重的腹板斜裂縫；預應力管道壓漿質量較差等。提出了幾種加固方案，並用神經網路和遺傳演算法進一步優化出了較佳的加固方案，進行了加固前後效果對比分析。 -
Strength classes grades of prestressed tendon
預應力筋強度等級30 -
Combined with that the influence of the prestressed tendon layout on mechanics characteristic of three - span prestressed concrete deck arch bridge is taken into account in these methods, and demand of internal force and displacement in design is satisfied by using upward and downward eccentric layout of prestressed tendon
這些設計法針對該類橋型的特點，利用在拱頂梁中分別布置一定數量的上下偏心的預應力筋來優化結構的內力和滿足各部分的位移限制要求。 -
Abstract : in this paper, six partially prestressed concrete special type slab bridge models with unbonded tendons are introduced. from the experimental results, the equation that calculates the unbonded tendon stress increment is obtained. the computed results show a good agreement with the tested results
文摘:介紹了6塊無粘結部分預應力混凝土異形板橋的靜載試驗，建立了部分預應力混凝土異形板橋中無粘結筋應力計算公式，並將所建立經驗公式的計算值與試驗值進行了比較。
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