approach span 中文意思是什麼

approach span 解釋
岸跨
  • approach : vt 1 向…接近，走近；使接近。2 探討；看待，對待，處理。3 向…接洽[提議]。4 〈美國〉企圖收買。vi 臨...
  • 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...
  1. 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。
  2. The structure of simply supported - continuous system is now common used in small span bridges and bridge approach of large span

    簡支轉預應力連續的施工方法是中、小跨徑橋梁和大跨度橋梁的引橋中普遍採用的結構型式。
  3. Only 1, 000, 000 vehicle crossings produced significant cracking in the floor beams of the tied arch span and in the plate girders of the approach spans.

    僅通過1，000，000輛車就在系桿拱的橫梁中以及引橋的板梁中造成明顯的開裂。
  4. This paper also presents the methods of controlling unstressed length of cable, pre - displacement of saddle, anchor span tension, erection of wire strands, the fixed position for erecting cable band and cable length. determination and control approach of displacement of saddles during cable erection are also introduced. at the same time, the change course of linetype during construction period for suspension bridge is analyzed

    再次，介紹了懸索橋的施工控制內容與方法，利用軟體sgkz2000對多座懸索橋進行了施工計算，提出本文關于懸索橋的主纜無應力長度控制、索鞍預偏量控制、錨跨張力控制、絲股架設控制、索夾安裝位置與吊索長度控制的方法；介紹了吊梁階段鞍座頂推量的確定與控制方法，分析了施工階段懸索橋的線形變化過程。
  5. Loft development may not be a good approach as obsolete industrial buildings would be in a poor condition after their life span of 30 years

    改建為家居工作間並非上好的提案，因為廢置的工業樓宇在過了30年使用期后可能會殘破不堪。
  6. In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training

    本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中，編制了計算程序，成功地以現有12座典型橋梁的基礎數據為樣本，以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數，以船撞橋概率為輸出參數，經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。
  7. Only 1, 000, 000 vehicle crossings produced significant cracking in the floor beams of the tied arch span and in the plate girders of the approach spans

    僅通過1 ， 000 ， 000輛車就在系桿拱的橫梁中以及引橋的板梁中造成明顯的開裂。
  8. This article has in detail analyzed technology request to the steel approach span plunger elevator in work, and proposed this kind of plunger elevator design calculation basis and an application example

    摘要詳細地分析了鋼引橋在提升過程中的技術要求，並在此基礎上提出了此類提升機的設計計算依據和一個應用實例。
  9. Firstly, the analyses on the dynamical response of the tsing ma bridge ( tmb ) under traffic loading are performed on the basis of the three dimensional finite element model of the full - scale structure of the bridge, and some regions critical to fatigue damage are determined from the result of the dynamical response. the hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints. to apply the hot spot stress approach for the fatigue evaluation of long - span suspension bridges, the fem is further used to determine the hot spot stress of the critical fatigue locations

    首先，在青馬大橋三維有限元模型和整體動力響應分析計算的基礎上進一步進行關鍵疲勞構件的局部熱點應力分析，對疲勞危險部位處的焊接構件建立三維有限元模型，施加符合橋梁實際工況的載荷與位移邊界條件，進行局部熱點應力分析，確定這些焊接構件內的名義應力和相鄰焊接區域內熱點應力之間的關系，得到相應的應力集中系數。
  10. In view of the principal approach span of a super major bridge in chongqing, this paper analyses the causes of cracks developing in construction on the important locations of the light rail load - bearing beams, such as the blocks 0 #, cross beams and pier shafts, and puts forward appropriate disposition measures

    摘要針對重慶市某特大橋主引橋在施工過程中輕軌承重梁的0 #塊、橫梁和墩身等重要部位出現的裂縫分析其成因，並提出處理措施。
  11. 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。
  12. The study shows that this control approach can overcome those shortages of the methods which are adopted to control voltage and reactive power in substation nowadays, it can hold the voltage level in the regular bound and maintain the balance of reactive power in substation to the greatest extent, and it have the ability to seek the best solution. adopting this methods, the switching times of loaded taps and capacitors can be decreased efficiently and advance the running life - span of the transformer and capacitors and improve the economy benefits. this control approach is a advanced way ii and it is worth to study more and utilize

    利用模糊神經網路對較好地實現對變電站的電壓、無功自動控制，能克服了目前在變電站電壓無功控制中普遍運用的分區方法存在的不足之處，不但可保持變電站電壓在合格的范圍內，盡量維持無功功率平衡，而且具有較好的尋優能力，有效減少變壓器有載調壓開關的切換次數和電容器組的投切次數，提高了變壓器和電容器的運行壽命，提高了經濟效益，是一種值得進一步探索和運用的較為先進的方法。
  13. The cable - stayed bridge of the hong kong section has a main span of 210m with a single inclined tower 158m in height. viaducts carry the approach roads to the bridges with piers at a typical spacing of 75m

    香港側的斜拉橋主跨長度為210米，單柱式後仰索塔高158米，高架引橋跨距一般為75米。
  14. In this paper, basted on the sum - up and investigation of simulation calculation of long - span bridge construction in nation and international, the detailed approach of imitated calculation of long - span cfst arch bridge is given out, and the reason why the general backward analysis is not suitable for the application of the rib - hoisting of cfst arch bridge is analyzed. and an applied method for forward analysis based on iterative theory is put forward

    本論文通過對國內外橋梁施工模擬計算成果的總結和研究，給出了大跨度鋼管混凝土拱橋模擬計算的具體步驟，分析了一般的倒退模擬計算方法不適合應用於鋼管混凝土拱橋吊裝的原因，並為此提出了基於迭代理論的前進分析實用方法。
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