研究生: |
梁興正 Hsin-Cheng Liang |
---|---|
論文名稱: |
鋼箱曲梁之受力行為分析 Analysis of Steel Curved Box Girder Bridges |
指導教授: |
陳生金
Sheng-Jin Chen |
口試委員: |
邱建國
Chien-Kuo Chiu 廖國偉 Kuo-Wei Liao |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 121 |
中文關鍵詞: | 鋼箱型梁 、曲梁 、畸變效應 、偏心載重 、有限元素法 、螺旋上升 |
外文關鍵詞: | Steel box girder, Distortion, Spiral girder bridges, Finite element method, Curved beam, Eccentric load |
相關次數: | 點閱:195 下載:2 |
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現今鋼箱型橋梁結構已有大量研究論文以及充分的規範制定,但大多著重於水平的橋梁結構,對於高度有所抬升的曲梁相關研究甚少,但此類橋梁實際應用上並不在少數,因此本論文將針對螺旋上升型鋼箱梁的受力行為與水平曲梁做相互比較。
將透過有限元素分析軟體分別探討螺旋上升型鋼箱梁在不同的曲率半徑、跨徑以及上升角度下,其受力行為有何異同。分析結果顯示,螺旋上升型曲梁相較於水平曲梁在上升角提升的情況下,不論變位或是應力都會有放大的現象發生,另外局部挫屈的現象也會更容易發生,對於加勁板的配置應更加留意。
The development of Bridge Engineering is considered quite mature nowadays, but there is still lack of research on the behavior of the steel curved box girder bridge having height changing, so-called the spiral steel box girder, neither Taiwan Bridge code nor any other country’s bridge code mention about the bridges having this kind of situation. This dissertation will discuss the behavior of this kind of structures under loading.
In this paper, finite element analysis software is used to investigate the influence of bridge’s height increase, radius of curvature changes and the different span length under eccentric line loads and lateral forces, wish the results can help engineers doing this kind of bridge’s design.
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