拉力梁 的英文怎麼說
中文拼音 [lālìliáng]
拉力梁
英文
tension beam-
The thesis has summarized the development of the oblique - pull bridge, its construction technology and the importance of bridge construction control, then has introduced project general situation, and has narrated detailed regulation, organization construction, the major work and difficult part of this bridge construction control. the following is the key part of this thesis, firstly, it has introduced the experiment work of early stage, structural calculation and its theoretical result : the absolute altitude of each operating mode, the absolute altitude of building mould in each section and the absolute altitude after pouring concrete ; then, it has discussed the method and content of the line shape control of the main beam, actual absolute altitude of building mould is put forward, and it has described the method of structural stress monitoring, how to arrange measure point and collect data, and how to analyze data. it has also narrated the method of rope force detection and structural temperature inspection
本論文在總結了斜拉橋的發展及其施工工藝,並指出了橋梁施工控制的重要性之後,簡要的介紹了工程概況,敘述了炳草崗金沙江大橋監控細則、組織機構及監控的主要工作和難點部分;論文的核心部分,在介紹了炳草崗金沙江大橋施工控制與監測工作的前期實驗工作和施工各工況標高、各節段支模標高、澆注混凝土后的標高的結構計算和其理論計算結果之後,詳細論述了主梁的標高線形控制方法和內容,實際支模標高的提出,結構應力監控的方法、布點、測讀及其對測讀數據的合理分析方法,索力檢測和結構溫度監測的方法。With two examples of the prestressed celom tension in the continuous girder design, which is utilized in the projects of mingzhu elevated railway and xinmin elevated railway, the author analyses the characters of the design and the application of this technology
摘要就軌道交通明珠線、莘閔線等工程的連續梁設計中預應力束體內張拉的實例,分析其設計特點和應用。It canbe determined the enhancing effect of new steel fiber to shear resistance of beams by the test of tensile strength of steel fiber reinforced concrete, it is important to reduce test cose and increase research efficiency
可以通過鋼纖維混凝土抗拉強度試驗來確定新品種鋼纖維對梁斜截面上混凝土受剪承載力的增強作用,這對于降低試驗成本和提高研究效率具有重要工程價值。Abstract : based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
文摘:在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下,分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗,研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果,但改性效果和樹脂的添加量並不是一個無限遞增的關系,當添加量超過一定數值以後,改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? , 30 ? , 30 ?的建議值Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下,分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗,研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果,但改性效果和樹脂的添加量並不是一個無限遞增的關系,當添加量超過一定數值以後,改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? , 30 ? , 30 ?的建議值The plating in ships is generally subjected to combined in - plane and lateral pressure loads. in - plane loads include biaxial compression / tension and in - plane bending and edge shear, which are mainly induced by overall hull girder bending and / or torsion of the vessel. lateral pressure loads are due to water pressure and cargo
面內載荷分為軸向壓應力或拉應力、邊緣剪切應力以及面內軸向彎曲應力。實際的船舶結構中面內載荷通常由船體梁的總縱彎曲或者船體梁的扭轉引起。側向壓應力則由水壓力和貨物壓力引起。A volume speed controlling system is selected on the fluid drive system of sugarcane mill, which consists of cam type axial piston variable pump and ram marathon fixed motor. an individual hydraulic system is adopted by the up - axis of the mill
甘蔗壓榨機液壓驅動系統採用斜盤式軸向柱塞變量泵與橫梁傳力內曲線馬拉松式定量液壓馬達組成容積調速閉式系統。And results are : ( 1 ) analyze the force and distortion on pipeline under collapse and gulch in theory. on the base of beam deformation, analyze the bending moment and deformation of pipeline with frusta and without frusta. calculate a true problem, contrast the differences between pipeline with frusta and one without frusta, draw some conclusions
得到的主要結果為: ( 1 )基於彈性地基理論和彈性梁的撓曲線理論,給出了管道在固定墩(相當跨越河溝情況)和無固定墩(相當坍塌和沖溝情況)的變形微分方程,並分析了當量軸力為拉力或壓力時管道的變形和受力情況。Two hypothesises, different from the traditional viewpoints, about stress distribution in beam section at the connection of beam and end - plate are presented by author to determine the ultimate moment of end - plate connection
其計算過程分為兩步: ( 1 )計算梁受拉翼緣的極限拉力; ( 2 )計算端板連接的極限彎矩。Additionally, modal parameters are tested under different prestressed forces and during the course of the lose of prestressed forces. finally, different vibration conditions, such as different rigidity of the hammer and different forces, are also studied
另外通過振動測試,對預應力梁在不同的張拉控制應力下、預應力損失過程、不同激勵條件下構件的實測模態參數的變化規律進行了試驗研究。Electron type omnipotent testing machine cmt5504, hot to link card appearance xwb - 300a, pulling force testing machine lj1000, melting body flow speed appearance xrz400, simple to prop up roof beam strike testing machine xjj - 50j, etc
、電子式萬能試驗機cmt5504 、熱變形維卡儀xwb - 300a 、拉力試驗機lj1000 、熔體流動速率儀xrz400 、簡支梁沖擊試驗機xjj - 50j等On the base of the research about the prestressed concrete structures at chongqing jianzhu university, a convenient and practical way to control the cracks is introduced in the pages, which is called the method of nominal tension stress that control the width of cracks by the nominal tension stress ftk under the working loads and the limited loads
文中在參考重慶建築大學多年研究成果的基礎上,通過研究四榀預應力框架梁的裂縫發展情況,推薦了一套了實際結構工程設計中方便的裂縫控制方法? ?以名義拉應力ftk控制短期荷載及長期荷載作用下預應力梁的裂縫要求。Applying a spatial nonlinear fem modeling, the actual cantilever construction process of the cable - stayed bridge concrete girders was simulated, the tension forces of cables and the initialize heights of girders during construction are obtained respectively
運用空間非線性有限元分析模型,模擬了混凝土斜拉橋主梁的懸臂澆築過程,求出各施工階段斜拉索的初始張拉力和主梁節段的立模標高。The test data of dongping project, which belongs to beijing - zhuhai highway at guangdong province, are given in this thesis. all the data are drawn to diagrams and compare with the theory compute results of winkler method and continue beam method separately
本文還對東坪工點的預應力錨索地梁進行了現場試驗,測試了錨索外錨力,地梁土壓力以及梁內鋼筋拉力,並繪製成相關數據表和相應曲線圖。As far as he hollow inclined column - wall transfer r. c joint is concerned, the stress state of transfer beam is very critical, because it bears not only the vertical load transferred from the wall, but also the axial load initiated by the inclined column
對有孔斜柱轉換節點而言,轉換梁的受力最為不利,它不僅承擔由薄壁柱傳來的垂直荷載,而且還承擔由斜柱水平分力引起的軸向拉力,即截面上有彎矩、剪力和軸力的共同作用。Subassemblage and prestressed concrete frames are assembled by precast prestressed beams and columns with tendons in the joints of the frames. these beams and columns are hoisted in site and the tendons are passed through the moire pipes. so prestressing force are brought to the joints of the frame. these tendons also can assume the moments at the end of the beams in ordinary condition
預壓裝配式預應力混凝土框架是採用工廠化生產的預制柱和預制預應力梁,運至現場直接吊裝,樑柱就位后,將后張預應力筋穿過樑柱預留孔道,對節點實施預應力張拉預壓。For three - short - pier shear wall under vertical loads, the results remain the same, and transfer beam at this moment will work with the middle pier, constituting a t - shape beam to sustain the moment and axial tensions together. 4. under the horizontal loads, the inner stress distribution in the frame supported short - pier shear wall shows similarities with that of the short - pier shear wall underneath the fastened supports
4 、水平荷載作用下,框支短肢剪力墻墻肢內的應力分佈形式接近於下部固支的短肢剪力墻的應力分佈;轉換梁承受上部墻肢傳遞的拉力、剪力和彎矩,當短肢剪力墻墻肢數量較多時,轉換樑上、下邊緣拉、壓應力交替出現,剪應力的最大值處于洞口下方的轉換梁體內。Self - erection system is applied to construction of most of modern large span concrete bridges. in the process of construction, cantilever beam is changing continuously because of the gravity of concrete, the stretching force, the load and temperature variation etc. in order to ensure that two cantilevers constructing opposite can normally close up and that the bridge linearity can accord with design, flexibility deformation has to be monitored
現代大跨度混凝土橋梁多採用自架設體系施工,在混凝土自重、張拉力、橋面荷載、溫度變化等的作用下,懸臂梁體處于不斷的變化之中,為保證對向施工的兩端懸臂能正常合攏和控製成橋線形符合設計要求,需要對施工過程中的撓度變形進行監測。2. for frame supported double - short - pier shear wall under vertical loads, the non - noding area of transfer beams turns into a member of flexure and tension with small axial force, and bending stress dominates in the stress distribution on the cross - section. in the nodding area, the axial force increases while the bending effect is small
2 、框支雙肢短肢剪力墻在豎向荷載作用下,轉換梁的非節點區為一拉彎構件,軸向拉力較小,截面的應力分佈以彎曲應力為主;在節點區,軸向拉力效應增大,而彎曲效應很小。Subassemblage and prestressed concrete frames are assembled by precast prestressed beams and columns, which are made in the factories, with tendons in the joints of the frames. so the joints and frame are monolithic and continuous, consequently, this kind of frame systems possess higher reliability and solve the problems in the process of assembling, exploring a new way for industrial production of prestressed structures
預壓裝配式預應力混凝土框架是採用工廠化生產的預制柱和預制預應力梁運至現場安裝,並對節點實施二次預應力張拉,構成整體受力節點和連續受力框架,克服了裝配式節點受力可靠性差的缺陷,開辟了預應力結構工業化生產的新途徑。分享友人