研究生: |
王修駿 Shiou-Chun Wang |
---|---|
論文名稱: |
圓形複合式橋柱之結構行為 Structural Behavior of Circular Composite Bridge Piers |
指導教授: |
陳生金
Sheng-Jin Chen |
口試委員: |
林英俊
Ing-Jaung Lin 鄭蘩 Van Jeng |
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: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 173 |
中文關鍵詞: | 複合式橋柱 、鋼管 、橋柱 、柱 、圓形斷面 、結構行為 、剪力強度 、耐震結構 、韌性 、複合式斷面 |
外文關鍵詞: | steel tube, composite bridge pier, structural behavior, Circular |
相關次數: | 點閱:337 下載:8 |
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本研究嘗試開發一個新的橋柱結構系統,橋柱剪力強度是由鋼管及圍束混凝土貢獻,撓曲強度是由主筋及混凝土所形成之力偶提供,而且鋼管亦可成為橋柱施工所需之模板,因此複合式橋柱並不需要配置橫向鋼筋。經由試驗來探討圓形複合式橋柱之結構行為,試驗參數規劃主筋量、跨深比的影響。研究結果顯示:(1) 複合式斷面的剪力強度以混凝土剪力強度與鋼管剪力強度疊加法評估,可以得到準確且保守的設計。 (2)複合式橋柱桿件的極限強度與剪力韌性皆比傳統R.C.柱桿件為佳。
This reported research examined a newly developed system. In this innovative design, the shear strength of the bridge pier is contributed from steel tube and the confined concrete. The flexural strength is from the longitudinal reinforcing bars and the concrete. These steel tube can also provide as the forms in the construction of reinforced columns. The transverse steel is not necessary in this new type composite bridge pier. A series of experimental studies were carried out to examine the behavior of the proposed composite bridge piers. The effect of the reinforcement, and shear span of the member were examined. It is found that the shear strength of the proposed composite bridges pier can be calculated based on the summation of the shear strength of concrete section and the tubular steel section. The experimental studies also demonstrated that the proposed composite type bridge pier is able to provide not only better strength but also superior ductility as compared with that of conventional reinforced concrete bridge piers.
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