span stability 中文意思是什麼

span stability 解釋
量程穩定度
  • 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...
  • stability : n. 1. 穩定，穩定性，穩度。2. （船等的）復原力。3. 鞏固；堅定，持久不變。
  1. The stability of the tiltrotor in the heli copter mode is analyzed aiming t a semi span soft - inplane tiltrotor model with an elastic wing

    集成了非定常動態人流方程與傾轉過渡狀態的多體動力學力程，建立了傾轉旋翼機時域非定常氣彈耦合分析模型。
  2. It measures the density of oxygen by detecting the life - span of the fluorescence quenching. the so - called fluorescence quenching is a kind of physics or chemistry process that the fluorescence material has chemical or physical reactions with certain substance is selected here. it has the advantage of good stability of fluorescence, long life span and the strong quenching effect

    本課題光纖氧氣傳感器檢測系統是基於熒光猝滅效應的檢測機制，通過測定熒光壽命從而檢測氧氣濃度的，熒光猝滅效應所引起的熒光壽命具有很好的穩定性、猝滅效果以及系統使用壽命長。
  3. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  4. Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed

    本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞室群，施工開挖過程中和開挖后圍巖穩定性研究這一重大課題，在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上，以目前國際工程地質界公認的最新通用軟體flac ~ （ 3d ） 2 . 0版作為基本計算工具，從整個壩區地應力場的研究開始，通過動態數值模擬分析這一新的模擬思路，系統地研究了深切峽谷區地應力場多階段的特徵和演變規律，進而對左、右岸地下廠房洞室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵，進行了全過程動態數值模擬研究，並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞室群圍巖穩定性的影響。
  5. After an introduction to the research on the software for the design of the variant steel arched girder construction, the creation of the structural model, the structure of the supporting seat, the design of the variant arched girder, and the measures taken to ensure the stability of the plane surface of the arched girder, the thesis goes to study the methods for the hoisting and the angle setting of the long - span arched girders, as well as the bolting of the axle pin in the hinge support

    論文首先對變異鋼拱架結構設計可採用的軟體、結構模型的建立、支座構造形式、變異拱梁的設計，以及保證拱梁平面外穩定所採取的措施等進行了研究，然後研究了大跨度變異鋼拱架弧形梁吊裝、角度的調整、鉸支座穿軸銷等的施工方法，最後對施工完成後的位移進行了實際量測。
  6. Abstract : this paper introduces the global stiffness, strength and stability of bracing structure with long span, pointing out that the control of bracing structure ' s deflection and elastic module can make the arch ring fit the line of pressure and arch axis and can guarantee the stability of bridge structure

    文摘:本文介紹了大跨度支撐結構的整體剛度、強度和穩定性，控制支撐的撓度和彈性變量可使拱圈符合設計壓力線與拱軸線，保證橋梁結構的穩定性。
  7. Analysis of stability about excavation and support of super - span road tunnel

    超大跨公路隧道開挖與支護穩定性分析
  8. Influence of high - span ratio on stability of layered strata roof

    高跨比對層狀頂板穩定性的影響
  9. Through over - all stability analysis, the influence of height - span ratio, rafter slope to the stability and the effective factors of gable portal frames are also presented in this paper

    通過對門式剛架的整體穩定分析，研究了剛架的高跨比、斜梁坡度對結構的穩定和計算長度系數的影響。
  10. In order to study the practical stability performance of chunan nanpu bridge, a total bridge model test was carried through. the design method of " spar to spar " modeling method was firstly introduced in this test. the test results are significant for construction and management of chunan nanpu bridge ; excessively, the test results are significant for design and construction of large span cfst arch bridge also

    該模型試驗首創了「桿對桿」剛度等效法，應用於鋼管混凝土桁架拱橋的模型設計和製作中，其研究成果對南浦大橋實橋的施工以及竣工后的運行有重要的應用價值，並對今後鋼管混凝土桁式拱橋的試驗研究（特別是模型製作） 、設計、施工具有重要的指導意義。
  11. Taking the 4th binhai road bridge in the development zone of dalian city as an example, this paper presents the key points of the overall design, plane and spatial static analysis, stability analysis and construction technology of long span half - through concrete filled steel tube arch bridge

    摘要以大連市開發區濱海路四號橋為例，介紹大跨度中承式鋼管混凝土拱橋的總體設計、平面靜力分析、空間靜力分析、穩定分析和施工工藝的要點。
  12. Influence to geometry nonlinear stability of orthogonal vierendeel dome by changing rise - to - span ratio, shell thickness and section area was studied and some useful conclusions were obtained for practical engineering

    分析了正交空腹網殼結構的矢跨比、網殼厚度、腹桿截面對其非線性穩定性的影響，得出若干對工程設計有參考價值的結論。
  13. The cfst x - type arches improve the lateral stability by sloping the arc ribs so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span

    鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型，在寬跨比較小的鋼管混凝土拱橋設計中應用較多。
  14. The cfst x - type arches improve the lateral stability by sloping the arc ribs, so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span. tongwamen bridge is a half - through cfst arch bridge, its span is 238m, and the width of its roadway is 10m, so the truss ribs in - plane is sloped into x - shapc to improve its lateral stability. as the cfst x - type arches with longest span all over the country presently, the design of tongwamen bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span

    鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型，在寬跨比較小的鋼管混凝土拱橋設計中應用較多。浙江銅瓦門大橋是一座中承式鋼管混凝土無鉸拱橋，跨徑238m ，橋寬10m ，拱肋為平面桁架形式，所以採用了x型拱肋以提高其橫向穩定性。作為國內目前跨徑最大的鋼管混凝土提籃拱橋，該橋的建成對我國今後長大跨徑小寬跨比鋼管混凝土拱橋採用提籃拱具有借鑒意義。
  15. Flutter stability of long span self - anchored suspension bridges and wind - tunnel tests

    大跨度自錨式懸索橋的顫振穩定性研究及風洞實驗
  16. The results show that the aerodynamic stability of long - span suspension bridges is significantly influenced by the static wind action, whereas the spatial non - uniformity of wind speed and the cable ' s wind load have basically no influence on it

    結果表明：靜風效應對大跨徑懸索橋空氣動力穩定性的影響比較重要，但是風速空間非均勻分佈和纜索風荷載等因素對大跨徑懸索橋的空氣動力穩定性基本沒有影響。
  17. Therefore, it is very important to study the rock mass quality classification and properly assess the surrounding rock mass stability of a large span and high side wall underground powerhouse. it not only determines the success of the project, but effects the investment and time limit

    因此，圍巖巖體質量及其穩定性評價對于這種修建在復雜巖體中的高邊墻、大跨度地下洞室群來說至關重要，不僅決定地下工程的成功修建，而且決定著工程的安全性和經濟合理性。
  18. This paper taking zigui longtanghe bridge in hubei province as a project background, studies about the unified construction technology of tower and buckle frame in erection with cableway used in steel pipe - encased concrete arch bridge constructioa based on the analysis of the construction property of long span steel pipe - encased concrete arch bridge, this paper raises the general scheme and basic structure of unified construction, analyzes the mechanical behavior of unified structure of construction statue, mainly discusses the strength, stiflhess and stability of the unified structure

    本文以湖北秭歸龍潭河大橋為工程背景，對大跨徑鋼管混凝土拱橋纜索吊裝塔架扣架一體化施工技術進行了研究。論文以大跨徑鋼管混凝土拱橋施工特點分析為基礎，提出了一體化施工的總體方案與基本結構構造，分析了施工狀態一體化結構的力學行為，主要探討了一體化結構的強度、剛度及穩定性，採用動態監控系統確保了一體化結構在橋梁施工過程中的安全可靠性，從而形成一套系統的纜索吊裝施工新技術，並在實橋工程進行了應用，效果良好。
  19. Flutter stability analysis of long - span suspension bridges during erection

    大跨懸索橋施工過程顫振穩定分析
  20. The reproductive strategy of plants in shapotou played an essential role for vegetation stability. high resistance to drought and long life span enableed hedysarum scoparium and caragana korshinski to adapt themselves to the harsh environments

    結果表明：在地處乾旱半乾旱的沙坡頭地區，通過機械固沙與植物固沙相結合的防風治沙模式，建立的雨育人工固沙區植被經過多年演替形成的人工?天然植被是穩定的。
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