pressure fixing method 中文意思是什麼
pressure fixing method
解釋
壓力定影法-
The square pattern has been obtained for the first time in dielectric barrier ar / air discharge at atmospheric pressure by using the double water electrodes and its spatio - temporal dynamics is measured by optical method. the phase diagram of pattern types as a function of air concentration and applied voltage by fixing other parameters is given
本論文採用特殊設計的雙水電極介質阻擋放電實驗裝置，首次在氬氣與空氣的混合氣體中獲得了大氣壓常溫下的穩定正方網格斑圖，並對其進行了時空動力學測量。 -
Fabrication of the box beam is divided into such parts as reinforcement, formwork, concreting, prestressing, moving and storing of beam, pipe grouting under pressure, end sealing of the beam, water - proof layer on the bridge surface system, protective coating etc. the paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects, such technologies as : manufacturing and fixing of reinforcement, steel reinforcement fixing baseplate, web plate and top plate respectively and lifting the steel skeleton into form, requirements of design and manufacturing and way of utilization for dismantling - erection type formwork and hydraulic formwork, optimization of concrete ratio, concrete pouring process of two ends of beam in priority over the middle, in sequence of first baseplate followed by web plate and top plate at last, concrete pouring in inclined section and in horizontal layer, concrete vibration mainly by external vibrator in assistance with internal vibrator, methods and regulation for steam curing of concrete, dual controls over stress and strain to ensure quality of prestressing workmanship, construction method of effective beam moving by heavy - weight special moving facility, some regulations and key notes about construction of grouting under pressure, beam ends sealing, water - proof layer on the bridge surface system, protective coating
箱梁製造由鋼筋工程、模板工程、混凝土工程、預應力工程、移存梁工程、孔道壓漿工程、梁體封端工程、橋面防水層和保護層工程等施工環節組成。文中介紹的採用胎具製作和綁扎鋼筋，分底腹板和頂板分別綁扎並吊裝鋼筋骨架入模；拆裝式和液壓式兩種模板的設計、製作要求和使用方法；綜合考慮、優化混凝土配合比，混凝土灌注從兩端至中間、先底板、后腹板、再頂板的施工順序和斜向分段、腹板水平分層、附著式振搗為主、插入式搗固為輔的施工工藝，蒸汽養護的方法和規定；應力應變雙控制確保預應力施工質量的施工技術；採用重物移運器有效移梁的施工方法；壓漿、封端、橋面防水層和保護層施工的一些規定和注意事項等都是對箱梁製造行之有效的施工技術和施工方法，並可為以後類似施工作借鑒。 -
The force control of suspension bridge anchorage cable is the main contents which will be researched. according to the character of suspen - sion bridge anchorage, three questions is solved in this paper on the basis of the construction control experience of the highway bridge of yichang yanzhi river. firstly, an effective method of cable force control is presented in this paper, which has settled the puzzle of cable force accurate operate through fixing a pressure transducer at the behind of the hydraulic jack. secondly, an exactitude calculation model is founded in this paper. in addition the influence of boundary condition, sag, inclination, flexural rigidity and environment temperature to the cable vibration frequency which make the frequency method could be used to the measurement of cable force. in the end of this paper, a control system of anchorage cable force is developed on the basis of the above research. this system is very steady, credible, high precision and convenient. it is a new and credible method to be used to the force control of sus - pension bridge anchorage cable. in this paper, the conundrum of cable force control has been solved. the fruits are very useful to the development of inland suspension bridge
提出了一種有效可行的錨跨張力控制方法，即通過在油壓千斤頂后加壓力傳感器，並利用單片機技術進行數據採集，解決了懸索橋錨跨索股初張力精確控制的難題；建立了錨跨索股索力的精確計算模型，分析了索股的邊界條件、斜度、垂度、抗彎剛度及環境溫度對索股頻率的影響，解決了弦振法在大跨徑懸索橋索力測試中的應用問題；在上述研究成果的基礎上，研製出了錨跨張力控制系統，該系統具有穩定可靠，精度高，使用方便等特點，它的投入使用將為我國今後大跨徑懸索橋錨跨張力控制提供一種全新的、可靠的手段。
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