腐蝕預力混凝土基樁安全評估與補強之研究｜國立中央大學博碩士論文系統

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研究生：	林澄政 Cheng-Zhen Li
論文名稱：	腐蝕預力混凝土基樁安全評估與補強之研究
指導教授：	王仲宇 Chung Yue Wang
口試委員:
學位類別：	博士 Doctor
系所名稱：	工學院 - 土木工程學系 Department of Civil Engineering
畢業學年度：	89
語文別：	中文
論文頁數：	167
中文關鍵詞：	鋼筋混凝土、腐蝕、棧橋、基樁、纖維強化塑膠、補強、延展性
外文關鍵詞：	corrosion, prestressed concrete, FRP, retrofit, pile, ductility
相關次數：	點閱：9 下載：0
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摘要……………………………………………………………..……I 英文摘要…………………………………………………………….II 誌謝………………………………………………………………….III 目錄………………………………………………………………….IV 表目錄……………………………………………………………...VII 圖目錄. ………………………………….………………………..VIII 照片目錄. ……………………………………………….……….…XI 符號說明. ……………………………………………………….…XII 第一章 緒論.......................................................................................................1 1.1 研究動機.................................................................................................1 1.2 研究目的.................................................................................................2 1.3 研究方法.................................................................................................3 1.4 本文架構.................................................................................................4 第二章 文獻回顧.................................................................................................5 2.1 前言.........................................................................................................5 2.2 箍筋圍束混凝土理論之研究回顧.........................................................5 2.3 強化纖維材料圍束補強研究回顧.........................................................8 2.4 國內中空橋柱補強之相關研究...........................................................12 第三章 預力混凝土基樁之理論分析...............................................................14 3.1圍束混凝土應力應變分析公式............................................................14 3.1.1 Mander – Priestely - Park 之圍束混凝土應力應變分析...........14 3.1.2 Hoshikumn – Kawashima 之圍束混凝土應力應變分析..........17 3.2中空圓柱斷面之箍筋圍束混凝土分析................................................18 3.3 鋼筋混凝土受壓極限應變...................................................................20 3.4 FRP圍束混凝土應力應變分析公式....................................................22 3.5 中空圓柱斷面之FRP圍束混凝土應力應變分析..............................25 3.6 無圍束混凝土.......................................................................................26 3.7 縱向鋼筋之應力應變曲線模式...........................................................27 3.8 彎矩-曲率關係......................................................................................28 3.9 側向力與變位之關係...........................................................................29
第四章 實驗規劃與執行...................................................................................32 4.1現場基樁腐蝕及修補情形....................................................................32 4.2試驗規劃................................................................................................32 4.3鋼筋混凝土預力基樁試體製作............................................................33 4.3.1預力基樁尺寸..............................................................................33 4.3.2鋼筋混凝土基樁工廠製作..........................................................34 4.4試體材料及材料試驗............................................................................35 4.4.1混凝土..........................................................................................35 4.4.2鋼筋..............................................................................................35 4.4.3碳纖維貼布（CFRP）................................................................35 4.4.4碳纖維貼布施工..........................................................................35 4.5周邊固定裝置製作................................................................................36 4.5.1基樁之固定基礎製作..................................................................37 4.5.2 鋼夾頭與反力鋼梁之製作.........................................................37 4.6加載設備及量測儀器............................................................................38 4.6.1 100噸油壓動力機.......................................................................38 4.6.2自動化資料擷取系統..................................................................38 4.6.3線性變化位移感應器（LVDT）................................................38 4.6.4應變計..........................................................................................39 4.6.5應變資料量測系統......................................................................39 4.7 試體架設與試驗步驟...........................................................................39 4.7.1基樁試驗設置..............................................................................39 4.7.2量測儀器架設..............................................................................39 4.7.3試驗之加載方式..........................................................................40 4.7.4試驗步驟......................................................................................40 第五章 試驗結果與討論...................................................................................41 5.1 試體實驗觀察行為與遲滯迴圈之討論...............................................41 5.1.1 TYPE I基樁（完整基樁）.........................................................41 5.1.2 TYPE II基樁（混凝土剝落，箍筋鏽蝕一半）.......................42 5.1.3 TYPE III基樁（混凝土剝落，箍筋全部鏽蝕）......................42 5.1.4 TYPE IV基樁（混凝土剝落，箍筋鏽蝕，主筋部份鏽斷）..43 5.1.5 TYPE II基樁修補後...................................................................43 5.1.6 TYPE III基樁修補後..................................................................44 5.1.7 TYPE IV基樁修補後..................................................................44 5.2基樁位移對側向力的包絡線圖............................................................45 5.2.1 修補前四種形態基樁側向位移與側向力之比較.....................45
VI
5.2.2 修補之後四種形態基樁側向位移與側向力之比較.................46 5.3 基樁構件消能曲線討論.......................................................................47 5.4 四種形態基樁修補前勁度變化圖.......................................................47 5.5 四種形態基樁韌性比討論...................................................................48 5.6 應變計之討論.......................................................................................49 5.6.1 TYPE I基樁之應變資料分析.....................................................49 5.6.2 TYPE II基樁之應變資料分析...................................................50 5.6.3 TYPE III基樁之應變資料分析..................................................52 5.6.4 TYPE IV基樁之應變資料分析..................................................52 5.6.5 TYPE II基樁修補後之應變資料分析.......................................53 5.6.6 TYPE III基樁修補後之應變資料分析......................................54 5.6.7 TYPE IV基樁修補後之應變資料分析......................................55 第六章 實驗結果之分析模擬...........................................................................57 6.1 前言.......................................................................................................57 6.2 斷面切割與鋼筋等化...........................................................................57 6.3 各項材料性質計算...............................................................................58 6.4 斷面彎矩計算.......................................................................................61 6.5 側向力與位移之關係...........................................................................62 6.6 基樁斷面之應變分布圖.......................................................................63 6.7 彎矩與曲率關係比較...........................................................................64 6.8 側向力-位移曲線預測結果..................................................................66 6.8.1 TYPE I基樁.................................................................................67 6.8.2 TYPE II基樁................................................................................67 6.8.3 TYPE III基樁..............................................................................67 6.8.4 TYPE IV基樁..............................................................................67 6.8.5 TYPE II基樁經過修補後...........................................................67 6.8.6 TYPE III基樁經過修補後..........................................................68 6.8.7 TYPE IV基樁經過修補後..........................................................68 第七章 結論與建議...........................................................................................69 7.1 結論.......................................................................................................69 7.2 建議.......................................................................................................70

                                

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