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研究生:王智弘
研究生(外文):Chih-hung Wang
論文名稱:圓箍筋細部對鋼筋混凝土橋柱之圍束效應
論文名稱(外文):Confinement Effect of Circular Hoops in Reinforced Concrete Bridge Piers
指導教授:楊國珍楊國珍引用關係
指導教授(外文):Kuo-Chen Yang
學位類別:碩士
校院名稱:國立高雄第一科技大學
系所名稱:營建工程所
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:77
中文關鍵詞:圍束效應圓箍筋鋼筋混凝土橋柱
外文關鍵詞:circular hoopsRC bridge piersconfinement effect
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由國內外橋梁震害原因可知橋柱為橋梁耐震設計之重點,而鋼筋混凝土橋柱之耐震能力則仰賴於箍筋之圍束效應。國內外有關箍筋提供混凝土圍束效應之研究已相當成熟,亦有不少學者依據試驗結果提出分析模型;然文獻中之研究,其斷面型式多以矩形柱為主,而因圓形斷面圍束較佳,故相關研究對其著墨較少。此外,國外用於圓形柱之箍筋多為螺旋筋(Spiral),而國內橋柱則以使用圓箍筋(Hoops)為主。另一方面,探討目前有關混凝土圍束效應之分析公式並未把箍筋之耐震細部,如彎鉤埋入深度與彎鉤角度等參數納入考慮。本研究即針對採用圓箍筋之混凝土橋柱進行箍筋圍束效應之研究,藉由圓柱試體抗壓強度破壞試驗,探討圓箍筋之細部如箍筋間距、箍筋體積比、彎鉤配置型式與彎鉤埋入深度等參數對混凝土圍束效應之影響。研究結果顯示,箍筋體積比對混凝土圍束效應之影響最大,其次為箍筋間距,彎鉤配置型式與彎鉤埋入深度雖有影響,但影響並不顯著。
Bridge piers play an important role in the seismic design of bridges. The earthquake-resistant capacity of bridge piers is mainly governed by the confinement effect of transverse reinforcement. The knowledge related to the confinement effects from the transverse reinforcement have been well established based on the research results of many researchers in the past decade. However, most of the concrete sections are confined by rectangular hoops or spirals, the knowledge related to the confinement effects of circular hoops is limited. In this study, a series of RC circular piers were tested to investigate the confinement effect of circular hoops between different details, such as the configuration of the circular hoops, the transverse reinforcement ratio, the spacing of the hoops. The conclusion is made based on the experimental results.
中文摘要 Ⅰ
英文摘要 Ⅱ
誌謝 Ⅲ
目錄 Ⅳ
表目錄 Ⅵ
圖目錄 Ⅶ
照片目錄 Ⅸ
第一章 緒論 1
1.1 研究背景 1
1.2 研究目的與內容 2
第二章 箍筋之圍束效應 3
2.1 前言 3
2.2 文獻回顧 4
2.3 耐震設計規範之沿革 7
2.4 圍束混凝土之應力-應變曲線 9
2.4.1 Mander等人之圍束混凝土應力-應變理論 10
2.4.2 Hoshikuma等人之圍束混凝土應力-應變理論 12
第三章 鋼筋混凝土橋柱試體極限抗壓強度試驗 15
3.1 前言 15
3.2 試驗目的 15
3.3 試體規劃設計 15
3.4 試驗結果與討論 19
3.4.1 橋柱試體極限抗壓強度 20
3.4.2 試驗結果與分析模型之比較 21
3.4.3 橋柱試體圍束效應與韌性 23
第四章 結論與建議 27
參考文獻 29
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