through girder bridge 中文意思是什麼
through girder bridge
解釋
下承梁橋-
The transverse stiffness limitation index ? the permissible ultimate width / span ratio b / l of the continuous steel truss girder of railway bridge is analyzed in accordance with the analytic theories of random vibration of train ? bridge time - variation system and the required derailment coefficients and comfort of drivers and passengers in train running through the bridge. the limitation index in question may be referred to in the design of the continuous steel truss girders of railway bridges
基於列車-橋梁時變系統隨機振動分析理論，按照橋上列車脫軌安全系數和司機、旅客舒適度的要求，對鐵路連續鋼桁梁橋橫向剛度限值-橋梁容許極限寬跨比b / l進行了分析，對鐵路連續鋼桁梁橋的設計具有一定的參考作用。 -
Aiming at the right control method of girder the springing quantum of the pc beams, analyzing the major factors which influence the change of girder, establishing control measures, observing and researching through experiment, the thesis make some pilot studies in liuguhe bridge ' s beforehand producing, building up and constructing, which belongs to the eighth contract segment of the beijing to shenyang expressway
本文主要依託京沈高速公路國內段第八合同段六股河大橋30m跨徑預應力混凝土工型梁預制安裝施工開展研究，分析影響主梁拱度變化的主要因素，制定控制措施，進行試驗觀測研究，從而確定適宜的拱度控制方法，較好地控制了主梁的拱度。 -
Through a real project - - - - - - " b " bid section of shijiazhuang south bridge. it is proved that high - low brace gantry crane wide double guiding girder method is a good and new technique of bridge construction
經過實際工程（石家莊南環大橋b標段）的施工實踐驗證，證明高低支腿龍門吊寬幅雙導梁法是一種優良的橋梁工程施工新技術。 -
Abstract : in this paper, a new simple method is put forward to on - line survey and analyse the real - time response of bridges loaded under random vehicles and people. based on linear elastic hypothesis and finite element method, the dynamic whole displacement state and load of the bridge can be obtained through surveying partial displacements, so the problem that load is unknown and difficult to determine when calculating is solved in a sense. this method is adap ted to girder bridge, arch bridge, cable - stayed bridge and suspension bridge. through the instrumentality of ways and means in this treatise, a real - time system to survey and analyse a working bridge can be established
文摘:在線彈性假設基礎上，根據有限元理論和橋梁隨機車輛（行人）荷載的特點，討論並提出了一種通過監測部分位移，計算橋梁其餘位移和橋面荷載的簡化分析方法，解決了橋梁在隨機車輛（行人）荷載作用下的荷載確定問題，建立了動位移和等效節點荷載的有限元列式.該方法為橋梁結構的在線監測和實時分析提供了理論基礎，適用於連續梁橋、拱橋、斜拉橋和懸索橋等橋梁結構形式，具有實際應用價值 -
Abstract : through the practice of vertical pressers in long sp an continuous box - girder and the research of two - way prestress model test, the construction technology about unbonded vertical prestress is proposed and applie d in hanjiang bridge in hanchuan. for the first time, it ? s first adopted in long span concrete bridge in our country and a lot of economic benefits are created b ecause of its advantages such as little drill way, rapid and imple construction, h igh quality and so on
文摘:通過漢川漢江公路大橋大跨徑連續箱梁豎向預應力施工實踐和雙向預應力模型梁試驗研究，在該橋施工中提出並應用了無粘結豎向預應力技術.這在國內大跨徑砼橋樑上尚屬首次全面採用，它具有孔道直徑小，施工簡便快速，質量易於保證等優點，為全橋預應力施工創造了較為顯著的社會經濟效益 -
In the third chapter, study on the rational cross section of steel stiffening box girder for the suspension bridge, through the fully comparative study with the ordinary hexagon streamlined steel stiffening box girder widely used in the present suspension bridges at home and abroad and taking the reality in the bridge into account, a updated streamlined steel stiffening box girder with fim has been developed and applied to the bridge successfully
在第3章?大跨懸索橋鋼箱梁合理結構型式研究中，對現代大跨懸索橋通常所採用的鋼加勁梁的斷面型式進行了比較研究，特別是對普通的六邊形流線型箱形斷面和本文提出的魚鰭型流線型箱形斷面從結構受力和經濟性等方面進行了分析比較，為後者在宜昌長江公路大橋上的成功應用提供了可靠依據。
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