裂梁 的英文怎麼說
中文拼音 [lièliáng]
裂梁
英文
split beam-
Floor-beam webs have cracked in tied arch bridges.
在系干拱橋的橫梁腹板上發生裂紋。It can be seen from the results that the control beam had good plastic property in the static failure experiment after two million fatigue loading circles. all specimens with corroded main bars were failure under the fatigue loads within one million fatigue circles. fatigue lifespan of reinforced concrete beam was sharply shortened after main bars corroded in it and the beam was destroyed bristly without any prediction
試驗結果表明,振動測試不能夠對銹蝕鋼筋混凝土梁的疲勞破壞做出可靠的預測;對比梁在經過200萬次疲勞循環加載后的靜力試驗中仍表現出良好的延性破壞特徵;銹蝕梁在100萬次疲勞循環內均因主筋疲勞斷裂而破壞;主筋銹蝕使得梁的疲勞壽命急劇縮短;梁發生脆性破壞而沒有徵兆。In the course of working, , the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly
與單向犁相比,其優點在於:耕地無開、閉壟,地表平整,降低了耕后整地的能量消耗,減少了地頭的空行程,因而大大提高班次生產率。為了滿足犁體梭式作業的要求,我們採用了一隻小容積雙作用的液壓油缸;同時對犁壁曲面的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間試驗,我們發現:該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴重;主犁梁和油缸缸體的連接部分(即油缸底座)突然發生了斷裂,造成整個犁體無法正常工作。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In addition to, the fatigue crack between web and upper flange of welded steel crane beam on heavy duty service was discussed, and based on long - term observation and research, the author classified fatigue crack into bearing type and middle type crack along the horizontal direction. the causation, distributive law and mechanism of the crack were analyzed, and the precautions to take and the measures to remedy crack were presented. the main defacts including damage, crack, erosion and aging in structures, especially in concrete structure were introduced ; the defact mechanism was analyzed and the precautions to take were also given
另外,作者對重級工作制焊接鋼吊車梁腹板與上翼緣連接焊縫的縱向水平疲勞裂縫進行了長期的觀察和研究,根據疲勞裂縫產生的不同機理,將其分為支點裂縫和肋間裂縫,並討論了兩類裂縫產生的原因、分佈規律、機理以及防治的措施;對工程中經常遇到的結構構件,尤其混凝土構件的幾種主要病害(損傷、裂縫、腐蝕與老化)進行了機理分析並提出了防治措施。The paper studied tests on three epiboly profiled bar concrete beams, bearing capacity of normal section, stiffness and behavior of cracks, and put forward formulas as advise. based on extant nonlinear concrete theory, a fem model was built by ansys program. the results of fem analysis was verified by tests data. some parameters in fem model were changed to build different models and the analysis results were compared with the advised formulas
本文通過三根外包型鋼混凝土梁試驗,研究了其正截面承載能力、剛度以及裂縫方面的性質,並提出了一些相關建議公式。同時在現有混凝土非線性分析理論的基礎上,採用ansys有限元分析程序建立了外包型鋼混凝土梁的有限元模型,結合試驗數據對模型進行了驗證,另外還改變了一些參數建立了有限元模型,並和建議公式的結果進行了對比。The solicitation development and rupture of craze in exiguous hierarchy play an connective work in the course of polymer ' s damage and rupture, it is a bridge in distortion mechanism of macroscopical and microcosmic
細觀層次的銀紋引發、生長和斷裂在聚合物損傷斷裂的整個過程中起著承前啟后的作用,它是溝通宏、微觀變形機制的橋梁。Cracks have been found in the flange and web splices at groove welds in at least four bridges.
至少在四座橋梁的翼緣板和腹板拼接坡口焊縫中發現了裂紋。Two structures that experienced cracking in the longitudinal girder web at x-type cross-frame are reviewed in detail hereafter.
以下將詳細評論在縱梁腹板與X型橫向框架連接處開裂的兩座結構。The second-floor framing was not appreciably affected and only a few of the first-floor joists were fractured.
第二層樓板構架所受影響較小,只有第一層樓板少數托梁裂斷。The floor joist was cracked and fractured, but no debris was deposited in the basement, as the subflooring remained intact.
地板托梁破裂折斷,但是因地板下面安然無恙在地下室並未落下碎片。Those of multi - span, middle - length ( about 25 - 40 metres ) are of large percentage among advanced bridges. simply - supported girder bridges with continuous decks are inferior to those of continuous girders because their decks crack easily. owing to the complex construction of continuous girder bridges, which is laboursome and time - consuming, people have been thinking about an approach to combining the advantages of the two so as to speed up the building and reduce the work procedures
在高等級公路橋梁中,多孔中等跨徑(跨徑在25 40米左右)的橋梁占很大的比重,橋面連續的簡支梁結構體系由於存在橋面容易開裂等缺點而在與連續梁結構體系的競爭中常常處于下風。The cracks are primarily parallel to the longitudinal direction of the girder and to the nominal bending stresses.
裂紋基本上平行於主梁縱向,既平行於名義彎曲應力。The measure of preventing cracking at prestress concrete beam and end
預防預應力混凝土梁端開裂的措施Analysis on fracture of steel skein used for wire rope of bridge tie bar
橋梁系桿鋼索中鋼絞線斷裂情況剖析Here the hsc of sompa is achieved through adding super - effective water reducer, fined slag and silicon fume, and decreasing the water / cement ratio. by varying the area ( spacing ) of tension bars, compressive bars, vertical links and distribution steel and embedding steel fiber and polypropylene fiber we try to improve the behaviors of reinforced high performance concrete one - way spanning slabs in bending, so that its ductility be greater than 5. with the same arrangement of steel the width of bending member is varied to observe the effect of the width / depth ratio on the ultimate compressive strain of concrete
通過變化受拉筋含筋率和受壓筋、箍筋(鉤筋、分佈筋)含量,或摻加纖維使之成為鋼纖維高強混凝土( sfrhsc )和聚丙烯纖維高強混凝土( pfrhsc ) ,對高強混凝土雙筋截面梁、板的受彎性能進行了試驗研究,試圖改善高強混凝土受彎構件的延性,使其延性比大於5 ;並在相同配筋情況下,通過變化截面寬度,研究了高強混凝土受彎構件的寬高比對壓區混凝土極限應變的影響;並對試驗構件的裂縫發展情況進行了觀測。Testing concrete - method for determination of compressive strength using portions of beams broken in flexure equivalent cube method
混凝土試驗.第119部分:用部分彎曲斷裂梁測定抗壓強度的方法Abstract : in this paper, the feature of time - bifurcation for plate - beam stability is studied by mechanics model of plate - beam structure of rock in compression. the instability time of plate - beam is dependent on the rock material feature. delay bulking occurs under some load. the formula of time - bifurcation is given. the mechanisms of roadway floor heave and delay rockburst are preliminarity discussed
文摘:採用巖石板裂梁的縱向受壓的力學模型,考慮深部巖石的流變性,分析了板梁穩定性的時間分叉特性.板梁失穩與巖體的流變性質密切相關,在一定載荷下,經歷一段時間后會發生延遲失穩,給出了時間分叉點的計算式.並對深部礦井延遲性巖爆發生機制進行了初步分析On the other hand, though there are a great deal experimental studies on flexural bearing capacity of rc members strengthened with frp, whereas most of the test members are normal ones, so there is a great difference with the actual structural members
另一方面,雖然國內外有大量對纖維材料加固鋼筋混凝土梁后抗彎承載力的試驗研究,但這些研究大多是對完好試件(極少部分是預裂梁)加固后進行研究,這與實際差別較大。分享友人