橋式鋼環 的英文怎麼說
中文拼音 [qiáoshìgānghuán]
橋式鋼環
英文
steel bridge ring-
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。Fuzzy identification prediction for environmental corrosion behaviors of 16mnq bridge steel
橋梁鋼環境腐蝕行為模糊模式識別預測It ' s the first time clearly and systematically to present the concepts of restraint influence coefficient of steel to strain increment, to curvature increment and to deflection increment due to creep which are different each other. theoretical formulae are established, and approximate formulae are also obtained while considering the characteristics of common - used concrete and ambient condition of real bridges in china. so, an approximate restraint influence coefficient method to analyze the effect due to creep and shrinkage in pc bridges is put forward, and the equations to estimate second - force due to creep considering influence of steel in system - transferred continuous pc bridges is also established
本文首次清晰而系統地提出了鋼筋對徐變的不同效應（徐變應變、徐變曲率、徐變上拱）約束影響系數的概念，建立了相應的計算式；結合我國普遍採用的混凝土的徐變特性和橋梁的構造特點及工作中南大學博士學位論文摘要環境特徵，給出了具有較高計算精度的實用計算式;在此基礎上，建立了橋梁徐變效應近似分析的鋼筋約束影響系數法，並推導出了考慮鋼筋影響的超靜定梁徐變次內力的近似計算式，可方便地應用於橋梁研究和設計中。The paper puts great emphasis on studying the mechanical performance and the carrying capacity of concrete - filled steel tubular ( cfst ), verifies the cyclo - hoop effect which steel tubular has exert to the concrete in cfst through the tridimensional finite element analysis of the entity of the arch rib, and proves that the cyclo - hoop effect is utilized to increase the axial compression cfst member carrying capacity
本文著重研究了鋼管混凝土結構的力學性能及承載能力，通過對拱肋實體所作的三維有限元分析，驗證了鋼管混凝土拱橋中鋼管對混凝土的環箍效應，證明了由於環箍效應的存在，使內填式鋼管混凝土軸壓承載力大大提高。This paper discusses the applicable ranges of current welding long rail techniques under various construction circumstances of urban rail transit project, and holds that the engineering scheme of the welded - rail site, the viaduct welded site and the utilization of mobile touch - weld vehicle shall be adopted
針對城市軌道交通工程中不同的施工環境，對比分析了現有的各種長鋼軌焊接方法和適用范圍，探討了現場焊軌基地、高架橋上的焊軌基地及利用移動式焊軌車焊接無縫線路長鋼軌的施工方案。In addition, due to the good thermal conductivity of steel materials, the pavement layer upon the deck should have good thermal stabilities and low temperature deformation abilities. in terms of paving materials and erecting methods, the steel deck pavement systems adopted in the world can be generalized into four types : the first one is the gussasphalt. then is the mastic asphalt
從鋪裝材料和施工方法來分類，目前世界上所採用的鋼橋面鋪裝體系，概括起來大致有四類：第一類為高溫拌和澆注式瀝青混凝土（ gussasphalt ） ，第二類為瀝青瑪蹄脂混合料（ masticasphalt ） （實際上也是澆注式瀝青混凝土，只是拌和、攤鋪工藝有所不同） ，第三類為瀝青瑪蹄脂碎石混合料（ stonemasticasphalt ，簡稱sma ） ，第四類為環氧樹脂瀝青混合料（ epoxyasphalt ） 。分享友人