span of a beam 中文意思是什麼

span of a beam 解釋
梁之跨距
  • span : n 1 一?〈手指張開時，拇指尖至小指尖的長度，通常九英寸〉。2 （常有短的涵義的）一段時間；很小的間隔...
  • of : OF ＝Old French 古法語。
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  1. This paper presents the structural design of the main bridge of lhasa river bridge, makes a deep - going study of the key techniques for design of the bridge, such as the reasonable span length ratio of each span of the 5 - span girder and arch hybrid structure, mechanical behaviour of the dual arch ribs, and section of the continuous girder tie beam, and also works out rigidity and stress conditions of the continuous girder tie beam and stress conditions of the concrete - filled steel tube arches of the main bridge

    摘要介紹了拉薩河特大橋主橋結構設計情況，對於五跨梁拱組合橋梁各孔跨合理的跨度比、疊拱的受力行為及連續梁系桿截面形式等設計中的關鍵性問題進行了深入的研究，給出了主橋連續梁系桿的剛度和應力情況、鋼管混凝土拱的應力情況。
  2. Abstract : the paper introduces the erection of the steel box girder of a long - span steel box - concrete composite bridge using broad double guide beam without affecting the normal operation of electrified railway and marshalling yard under the bridge, including construction plan, design of gantry crane and guide beam, as well as key points of construction technology

    文摘:介紹在保證電氣化鐵路、編組站場正常運營情況下，運用寬幅式雙導梁解決大跨度鋼箱混凝土結合梁橋的鋼箱梁架設技術難題，重點闡述了施工方案，龍門吊、導梁設計，工藝要點等。
  3. The paper, in the light of my bureau ' s construction experience and project practice in constructing large span prestressed continuous beam bridge ( continuous rigid frame ) in recent dozens of years, introduces a new thinking about the standardized design of cable - stayed hanging basket and the standardized construction technology of the continuous beam bridge ( continuous rigid frame ), gives the detailed account of a series of construction technique and achievements such as : the development and construction ways of large span continuous beam bridge, the standardized design thinking and operation of cable - stayed hanging basket, the standardized construction technology of the continuous beam bridge ( continuous rigid frame ) etc., meanwhile, it is attached with a whole set of detailed standardized design sample drawings of cable - stayed hanging basket

    本文根據我局十幾年來修建大跨度預應力連續梁（連續剛構）橋的施工經驗和工程實例，介紹了一種斜拉式掛籃標準化設計的新思路及連續梁（連續剛構）橋標準化施工工藝。詳細敘述了大跨度連續梁橋的發展、施工方法、斜拉式掛籃標準化設計思路及做法、連續梁（連續剛構）橋標準化施工工藝等一系列施工技術及成果，並附有全套詳細的斜拉式掛藍標準化設計定型圖。對同類型橋梁的施工及掛籃設計具有參考價值。
  4. The analytical example is min - river cable - stayed bridge, which is the third longest cable - stayed bridge and the longest composite beam cable - stayed bridge in the world, with main span 605m. the paper set up a 3d model of the bridge with ansys finite element program, considering the geometrical and material non - linearity

    以青州閩江大橋這座主跨長605m的大跨度疊合梁斜拉橋為例，利用ansys大型通用程序建立成橋階段、懸臂階段的空間模型，在計算中考慮了材料非線性和幾何非線性的影響。
  5. In this paper, a two - dimensional analysis of the tanjialiangzi bridge was first performed ; then a segment of the bridge was modeled and a three - dimensional analysis of it were carried out by employing the fem software of ansys ; after a careful analysis of the result of the calculations, the causes of the diagonal cracking in the web of the beam were given out ; and also, in the last part, common steps of damage evaluation of the long - span pc continuous bridges through fem software were summarized

    本文首先對譚家梁子大橋作平面計算分析；然後運用ansys軟體建立該橋局部梁段的空間有限元模型，並在此基礎上進行空間局部有限元分析；通過對計算結果的整理和分析，從設計方面探討了該橋腹板斜裂縫產生的原因：此後，針對病害成因，本文提出了裂縫修補和腹板加固的方法；最後總結了運用有限元軟體分析同類橋梁病害的一般方法。
  6. A 21 meter span unbonded prestressed composite beam fabricated from reactive powder concrete ( rfc ) was designed. then the performance and economy of this kind of beams were compared with conventional prestressed beams and steel - concrete composited beams. the results indicated that rfc beams have superior performance

    最後，對大跨度（ 21m ）梁，通過三種設計方案結構性能和經濟性等方面的對比，對採用活性粉末混凝土疊合梁的優越性進行了綜合評價。
  7. In order to accelerate the development of preflex composite beam in railway bridges and to design and construct preflex composite beam bridges of railway in our country reasonably, this thesis is from the scientific project of railway department " experiment and application research of railway preflex composite beam " and summarizes the design information and practical projects on preflex composite beam. on the basis of above works, this thesis improves computation method in analysis of railway preflex composite beam on sectional stress, deflection of mid - span, crack width and shearing resistance and programs a software " preflex composite beam bridge structure analysis system - pfsas ", which is adapt to railway bridges in our country. moreover it makes a primary research in construction techniques and structure measures

    為了迅速促進預彎組合梁在我國鐵路橋梁中的發展，合理地進行我國鐵路預彎組合梁橋的設計和施工，本文結合鐵道部科技研究開發項目「鐵路預彎組合梁的實驗與應用研究」 ，在總結以往對預彎組合梁力學性能研究成果及實際工程的基礎上，完善了鐵路預彎組合梁的截面應力、跨中撓度、裂縫寬度和抗剪分析的計算方法；編制了適用於我國鐵路橋梁的「預彎組合梁橋結構分析系統? ? pfsas 」軟體；並對預彎組合梁的施工工藝及構造措施進行了初步探索。
  8. A simplified formula for the shear capacity of rc simply supported beam which strengthened with the cmmr is proposed in this paper. 3 、 the shear capacity of rc beam strengthened with cmmr is studied. though the test of fourteen simply supported reinforced concrete beams and five overhanging reinforced concrete beams with cmmr, it analyses the effects of shear - span ratio, web reinforcement ratio of cmmr, style of loading, preloading on strengthening, and compares them with rc beams using ordinary stirrup

    3 、根據本文進行了的14根混凝土簡支梁和5根混凝土伸臂梁的水泥復合砂漿鋼筋網抗剪加固試驗，分析了剪跨比、鋼筋網配筋率、加固形式以及持荷狀態等因數對整個構件極限抗剪承載力的影響，並與混凝土梁進行了比較。
  9. According to regress, the paper got equivalent shearing stiffness and equivalent damping gene ' s calculating formula of the hdr ' s equivalent linear model. at last, the paper estimates the effect of integrated isolation bearing with a 4 span continuous beam bridge by nonlinear dynamic analysis program

    根據能量相等的原則，本論文提出了高阻尼橡膠剪切滯回曲線的雙線性模型和模型中各參數的計算公式；回歸出了用剪應變表示的等價線性化模型的等價剪切剛度和等價阻尼比實用計算公式。
  10. Taking the long span continuous rigid - frame structure of the south bank approach spans of wuhan tianxingzhou changjiang river bridge as the research object, and using the large scale finite element analysis program ansys and two ways of modeling with solid element and spatial beam element, this paper respectively analyzes the dynamic characteristics of the rigid - frame structure of the approach spans, makes a study of the influences of rigidity changes and bearings failure of the thin - wall piers on the dynamic characteristics of the structure of the approach spans and also compares the results of numerical analysis of the two kinds of modeling

    摘要以武漢天興洲長江大橋南岸引橋大跨度連續剛構為研究對象，運用大型有限元分析程序ansys ，採用實體模型與空間梁單元兩種建模方式，分別分析了其動力特性，探討了薄壁墩的剛度變化與支座失效對其動力性能的影響，並對兩種模型的數值分析結果進行了比較。
  11. Next, a three - span curve continuous box beam has been studied by fem, and how to set the single - pedestal pier in curve continuous box beams has been discussed. when setting the single - pedestal pier, the vehicle flow should be inspected firstly, and then a best offset distance should be selected within the feasible range of the offset distance. meanwhile, increase the spacing interval of the double supports to the largest extent when installing a double supports on a sharing single - pedestal pier, which can enhance the stability and security of the bridge as a whole

    對上石立交橋中一座三跨連續的曲線箱梁進行有限元分析，詳細地討論了在曲線箱梁中如何合理設置獨柱墩的問題，分析表明獨柱墩的設置應該根據車流調查的實際情況，再結合結構本身的特徵，在可行的偏距范圍內選擇一個最佳的偏距，另在對公共墩上的雙支座進行設置的時候應該盡量使雙支座的間距增大，這樣可以保證橋梁整體的穩定性和安全性。
  12. Relying on the no. 4 bridge of xiangfan bridge over - crossing hanriver bridge, in this paper a ann is applied to the parameter of the long span bridge in the construction beam

    本文以襄樊漢江四橋為依託，將神經網路誤差調整方法用於大跨度混凝土橋梁的施工參數的識別。
  13. A new mega - sub controlled structural system is presents to solve the long span problem of the mega beam, which is achieved through setting additional columns

    摘要針對巨型梁的大跨度問題，在巨子型控制結構體系中設置附加柱，形成一種新的巨子型控制結構體系。
  14. Based onthe analysis of the behavior of joints, further analysis about the composite steel frame isproceeded. in this way, the stiffness matrix of the frames is inferred, and the formula of thefixed moment calculation about beam element with semi - rigid connections is presented. at theend of this paper, a two - span and five - story composite steel frame is analyzed using finiteelement software ansys8. 0. the analysis indicates that the semi - rigid behaviour of joints havesome influence on the mechanical behavior of frame, but the main factor of influence is the

    最後採用ansys對一雙跨五層組合鋼框架進行了結構分析，分析表明，連接節點的半剛性性能對組合鋼框架的受力性能有影響，但半剛性組合鋼框架的受力性能的主要影響因素是節點約束系數，本文詳細分析了約束系數對框架受力性能的影響，指出在組合鋼框架設計當中，考慮連接的半剛性性能能使框架內力分配更為合理。
  15. In this thesis, the primary principles and construction technology of twice pre - stressed composite structure are introduced based on the experimental study on a two - span twice - prestressed continuous beam

    並通過一根兩跨二次預應力連續梁的製作，介紹二次預應力組合結構的基本原理和施工工藝等。
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