預應力層 的英文怎麼說
中文拼音 [yùyīnglìcéng]
預應力層
英文
prestressed layer-
Investigation on layout of cables for prestressed lattice shell structure of two - layer cylindroid
拉索預應力雙層柱面網殼結構布索方案研究Elasto - plastic stability of single - layer reticulated domes
單層預應力網格鋼結構穩定性研究We can say that it can develop the usage of soil nailing wall fill the rank of piles disadvantage a bright future of developing and using. the development, application, advantage and disadvantage about the " prestress anchor ribbed beam support system " is introduced in chapter 1 : it " s supporting mechanism and structural feature is introduced and compared with the soil nailing walls and un - embedded rank of piles in chapter 2 ; design and computer steps and more details about the design methods of the support system are introduced in chapter 3 ; the two important parts named draperies and anchors are introduced on their construction technology in chapter 4 ; three foundation trenches " instances with different depth in different soil are showed in the last chapter 5
本文在第一章概論部分介紹了「預應力錨桿肋梁支護結構」的發展、應用和優缺點；第二章分析其支護機理、結構特點，並與土釘墻和無嵌入排樁多錨支護進行了結構受力對比分析；第三章介紹該支護結構的設計計算方法步驟，詳細介紹了支護結構各部分的設計方法；第四章介紹預應力錨桿肋梁支護系統最重要的兩個部分：帷幕和錨桿的施工技術；第五章介紹了不同土層不同深度的有代表性的三個基坑工程實例。This product is mainly used for reinforcing various pre - stressed concrete structures such as large bridges, crane girders, cement power poles, pre - stressed concrete pipes, frames of multi - story factory buildings, etc
本品主要用於各種預應力混凝土結構的配筋。如大型橋梁、吊車梁、水泥電桿、預應力混凝土水泥管、多層廠房框架等。To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議The layered combined finite element model is taken in the finite analysis of concrete and bonding bar. in the nonlinear analysis ofunbonded prestressed concrete, the effect that unbonded tendons acts on concrete is replaced by equivalent force in the method of equivalent prestress
在有限元分析中，混凝土和粘結鋼筋採用分層組合式的有限元模型，在無粘結預應力混凝土的非線性分析中，將無粘結預應力筋對混凝土的作用，借鑒預應力的荷載平衡法，用其等效力來代替預應力作用。The main factors including concrete cover and prestressing levels which may have influence on the fire resistance of the simply - supported slabs are examined. the deflection and prestress are presented. from the results of tests, the fire endurance of the simply - supported slabs are given
在簡支板的火災行為試驗研究中主要考慮了普通鋼筋的保護層厚度和預應力度兩個因素，主要測試了構件的撓度變化及預應力的變化，並由此得出了其耐火極限。Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。Analysis and discussion on layout scheme of prestressed bars for transfer structure with large - span laminated open - web truss
對大跨度疊層空腹桁架轉換結構預應力筋布置方案的分析與討論With the study of the ability of unbounded ppc structure and the development of materials of unbounded ppc and the technique of light jack, the advantage of unbounded ppc structure has been widely recognized
隨著對無粘結預應力結構性能的研究，無粘結材料供應充足和輕型張拉千斤頂技術的發展，以及無粘結預應力樓蓋在高層建築結構中的普及，無粘結預應力混凝土結構的優點已得到廣泛的認可。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 supporting mechanism of pre - stress anchor is given in following sentences in this paragraph : make full use of sectional stability, put - up steel - net shot concrete to the stratified earth as the trench is being excavated, and by this means, the little liding of soil layers and small broken slumps of rock slopes can be avoided
預應力錨板的支護機理：充分利用巖土層自身或預處理的局部的穩定性，隨基坑開挖分層掛鋼筋網噴射砼，以避免土層幫片及巖石邊坡小的節理破碎滑塌，並把土壓力傳給錨板，由錨桿集中受力，通過錨桿的錨固力平衡土壓力。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。Suspend - dome is a new multiplex structure system composed of single - layer spherical latticed shell above, prestressed cables below and braces bars used to link them. compared with single - layer latticed shell and cable dome, suspend - dome can cross a larger span economically and reasonably
弦支穹頂（ suspen - dome ）是由上部的單層球面網殼，下部的預應力環索和斜索以及聯系二者的撐桿組成的一種新型的復合結構體系。Many optimization joints mid design methods which have been applied in actual engineerings are put forward, including the rc looped - beam joint, enforced - steel loop joint, joint between columns filled with steel tubes and rc beams, joint between columns filled with steel reinforced concrete and rc columns, joint between column filled with steel tube and composite beam, composite beam design method, prestressed laminated open - web truss mid so on
其中，提出的較優化的鋼筋砼環梁節點、鋼加強環節點、鋼管砼柱與鋼筋砼柱節點、鋼骨砼柱與鋼筋砼梁節點、鋼骨磚柱與組合梁節點及組合梁設計方法、預應力疊層空腹桁架等，都已應用於實際高層建築中。Responsible for or taking part in the research projects which have been spread and received scientific and technological progress rewards, such as " prestressed strengthening technology ", " oil - proof of the composite flooring for multi - storied industrial building ", " the strengthening technology with shotcrete ", " the strengthening technology with carbon fiber material ", " the diagnosis and treatment for leakage of exterior wall ", " the testing and identifying technology of energy - saving building ", " the testing technology of the actual strength of the bonding mortar in masonry structure "
負責和參加了"預應力加固技術" 、 "多層工業廠房抗油滲復合樓地面技術" 、 "噴射混凝土加固技術" 、 "碳纖維加固技術" 、 "外墻滲漏診治技術" 、 "節能建築檢測鑒定技術" 、 "砌體結構砌築砂漿實際強度檢測鑒定技術"等多項科研成果，並得到推廣應用和獲得科技進步獎。1 uncoated stress - relieved steel wires and strands for prestressed concrete erratum 1
用於預應力混凝土用無塗層的消除應力鋼絲和絞合鋼繩It is difficult to use pre - stress anchor technique to the deep excavation pit on the coast, in which the stra - tum is highly filled with water and subjected to the penetration of sea water, therefore there is no suc - cessful experience
瀕臨海邊的深基坑，地層含水量高，滲透性大，易受海水滲透影響，在這類基坑中應用預應力錨桿技術困難極大，鮮有成功的工程經驗。Effect on carrying capacity of pre - stressed soil anchor about grouting technique
灌漿工藝對土層預應力錨桿承載力的影響Prestressed concrete slab - column structure has been widely used in long - span and multistory building. there are four commonly used analysis methods for slab - column structure, which are direct design method, equivalent frame method, plasticity method and finite element method
預應力混凝土板柱結構在大開間的多層及高層建築中得到了廣泛的應用，其設計方法有直接設計法、等代框架法、塑性分析法和有限元法等多種方法。分享友人