deck span 中文意思是什麼

deck span 解釋
橋面跨度
  • deck : n 1 甲板，艙板；覆蓋物。2 【建築】平屋頂；橋面；【鐵路】客車車頂。3 〈俚語〉地面，地。4 〈主美〉...
  • 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. Some key issues in the modeling of a long span composite cable - stayed bridge are discussed such as cable tension, dead load, large deflection, concrete deck stiffness, concrete deck - steel girder connection, and boundary condition. some conclusion can drawn from the thesis : 1. the initial equilibrium configuration of the bridge is clarified in the thesis

    本文深入討論大跨度結合梁斜拉橋"基準"有限元模型建立過程中的幾個關鍵問題並得到一些有意義的結論： 1 .明確斜拉橋在索初應力和恆載作用下的初始平衡構型? ?處于初始平衡狀態時的幾何位置，給出了其計算方法。
  2. As a result of increasing bridge span, deck flexibility and structure complexity, earthquake analysis of long span cable - stayed bridge becomes one of the most concern and challenge problems in bridge engineering field

    隨著橋梁跨度、橋面柔性和構造復雜性的增加，大跨度斜拉橋的地震動研究已經成為橋梁工程界最關心、最具有挑戰性的課題之一。
  3. On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer, the principle of prestressed iendon layout for three - span prestressed concrete deck arch bridge is illustrated

    摘要在分析預應力布置位置對三跨上承式拱橋內力和拱腳推力影響的基礎上，闡明了該類橋型預應力筋的布置原則。
  4. The thesis is aimed at presenting a procedure to establish a baseline finite element model of the qingzhou cable - stayed bridge over the ming river, fuzhou, china that was newly constructed. its main span length of 605m is the longest in the world among the completed composite - deck cable - stayed bridge. the proposed procedure includes several tasks : initial finite element modeling base on the design drawings, field loading tests and ambient vibration tests, and finite element model calibration with the test results

    本文以主跨605m的結合梁斜拉橋? ?青洲閩江大橋為背景，首先根據設計圖紙建立該橋完整的初始空間有限元模型，然後根據通車前現場靜力試驗和環境振動試驗結果對初始有限元模型進行校正，通過參數的調整使模型靜、動力計算結果與實測值吻合。
  5. Stay cables of the long - span cable - stayed bridges are susceptible to vibration under wind loading, or wind incorporated rain excitation, or deck motion due to high flexibility, relatively small mass and very low inherent damping, such as vortex shedding, wake galloping, parameter resonance and wind - rain induced vibration. large - amplitude vibration of cables may reduce the life of cables and threaten safe traffic, and has been considered today as one of the most critical problems for this type of bridge

    大跨度斜拉橋拉索具有較小的質量和極低的阻尼，在風、風雨及橋面振動等外部激勵下極易發生振動，如渦激共振、尾流馳振、參數共振和風雨振等，拉索的大幅振動對拉索的使用壽命和橋梁安全運營構成極大威脅，它已成為大跨度斜拉橋急需解決的關鍵問題之一。
  6. At present, the steel structure which has been completed at the moment, it has the biggest span in domestic by adopting a rotund ( diameter : 160 meters ), welding ball junction double - deck net shell steel structure roofing system

    目前已完成的鋼結構是目前國內跨度最大的採用圓型（直徑為160米）焊接球結點雙層網殼鋼結構屋面系統。
  7. Based on the differences between the design value and the survey of the bridge deck elevation in constructing the pre - stressed long span bridge, the model parameters are identified by the genetic algorithm, and the pre - stress loss values of different sections are given

    建立附加損失的數學模型，根據施工時的預應力張拉后橋面實測標高與設計值的差異，用遺傳演算法識別損失模型的參數，確定有關各截面的損失值。
  8. The derrick to be laid down on deck, cargo blocks, span takles, guide rollers and all moving parts of derrick of derrick to be dismantled. cleaned and greased with special grese

    吊桿放置甲板上，吊貨滑車，調節跨幅復式滑車，導輪及吊貨桿上所有活動部件拆開，清潔，加優質潤滑脂。
  9. In this paper, the best reinforcement scheme, which was found by nerve network and genetic algorithm from serval reinforcement schemes, was applied to strengthen a prestressed concrete continuous rigid fame bridge with many quanlity faults, such as excess fall deflection of the main span deck > serious web slop crack existing between main pier abutment and one fourth span, and very poor mud jacking quanlity in the prestressing tendon tubs

    本文針對某預應力混凝土連續剛構橋所存在的實際問題：如主橋橋面下撓度過大；主墩和四分之一跨徑處均存在較嚴重的腹板斜裂縫；預應力管道壓漿質量較差等。提出了幾種加固方案，並用神經網路和遺傳演算法進一步優化出了較佳的加固方案，進行了加固前後效果對比分析。
  10. Combined with that the influence of the prestressed tendon layout on mechanics characteristic of three - span prestressed concrete deck arch bridge is taken into account in these methods, and demand of internal force and displacement in design is satisfied by using upward and downward eccentric layout of prestressed tendon

    這些設計法針對該類橋型的特點，利用在拱頂梁中分別布置一定數量的上下偏心的預應力筋來優化結構的內力和滿足各部分的位移限制要求。
  11. The main span steelwork was fabricated at shekou in mainland china mainland and assembled on site into units of 8. 7 metres long, the deck slabs being cast on each unit before erection

    橋面主架由鋼製件組合而成，在中國內地蛇口製造及於工地裝嵌成長8 . 7米的組件，並於吊放前，在每塊組件上鑄造橋面平板。
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