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arcuated adj.1.弓形的。2.【建筑】拱式的。短語和例子arc...

Destabilization laws of an arcuated built - up system bridge are provided , nonconservative force of hanger rods and members “ bearing force are integrated in order to consider influence of hanger rods towards arch stability 提出了拱式組合體系橋梁的失穩規律,將吊桿非保向力和構件受力結合起來考慮吊桿對拱穩定性的影響。

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Arcuated built - up system bridges are one of bridge structural styles , which are used extensively at present . on one hand , because of complexity and diversity of this kind of structure , current engineering experiences have not satisfied design requirements no longer . on the other hand , towards this kind of structural system traditional methods simplify complicated structures into planar structures , these methods neglect apparently spatial action among members , especially those primary bearing load members along lateral direction of bridges 拱式組合體系橋梁是目前廣泛采用的一種橋梁結構形式,一方面由于拱式組合體系橋梁結構的復雜性和多樣性,現有的工程經驗已不能滿足設計需求;另一方面對于這種結構體系過去的傳統做法是將復雜結構簡化成平面結構,這種做法顯然忽略了構件之間的空間作用,尤其是沿橋橫向存在主要承力構件。

The paper is based on an arcuated built - up system bridge - zhongshan no . one bridge to be built in guangzhou , adopts the large universal finite element programme ansys , takes spatial action among members into account , establishes a three - dimension finite element model , and discusses the following several aspects : firstly , when three - dimensional finite model of a complicated bridge is founded , a beam - lattice method is a kind of applied and effective spatial analysis method , which is used to analyze superstructures of a bridge 本文以廣州市中山一橋為背景,采用大型通用有限元程序ansys ,考慮構件間的空間相互作用,建立了三維的有限元模型,重點對以下幾個方面進行深入探討:首先,在對復雜的橋梁結構進行三維的有限元模型建立時,梁格法是分析橋梁上部結構比較實用而且有效的空間分析方法。

Destabilization style of an arcuated built - up system bridge , influence of nonconservative force of hanger rods , comparative between stress value in construction stage and stress value in finished bridge stage , stability coefficients in bridge code , these are discussed deep 著重對失穩類型、橫撐在穩定中所起的作用、吊桿非保向力的作用以及施工階段的應力和成橋階段應力的比較、規范中穩定安全系數的規定進行探討。

Therefore how to simulate exactly an arcuated built - up system bridge , carry calculation and design of it and obtain behaviors in accord with facts , is a urgent task in front of bridge workers 因此如何正確模擬拱式組合體系橋梁,進行拱式組合體系橋梁的設計和計算,獲得符合實際的受力性能,一直是擺在橋梁工作者面前的一項迫切任務。

Destabilization laws of an arcuated built - up system bridge are provided , nonconservative force of hanger rods and members “ bearing force are integrated in order to consider influence of hanger rods towards arch stability 提出了拱式組合體系橋梁的失穩規律,將吊桿非保向力和構件受力結合起來考慮吊桿對拱穩定性的影響。