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研究生： 莊佳霖
Jia-Lin Juang
論文名稱： 鋼骨鋼筋混凝土梁遲滯模式及耐震行為研究
Hysteretic models and seismic behavior of steel reinforced concrete beams
指導教授： 許協隆
Hsieh-Lung Hsu
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： 94
語文別： 中文
論文頁數： 141
中文關鍵詞： 遲滯模式 、鋼骨鋼筋混凝土 、耐震行為
外文關鍵詞： steel reinforced concrete, hysteretic model, seismic behavior
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    • 就鋼骨鋼筋混凝土(SRC)梁之設計而言，除須有效推求其承載強度外，變形之估算亦為重要之設計資訊，本研究藉試驗資訊並考量SRC梁受彎矩時之複合效應，推導合理之SRC彎矩-曲率分析模式，並進一步利用斷面應變及鋼骨與混凝土間的握裹力模式推求SRC梁的力量-位移關係，上述分析模式經與實驗結果比較，皆具甚高之吻合性。
    另為獲得SRC梁在反覆載重下之行為，以評估其耐震性能，本研究中亦以衰減參數為基準，推導出SRC斷面彎矩-曲率遲滯模式，此遲滯模式係利用單向載重下之彎矩-曲率關係及修正之樞鈕模式以有效模擬SRC梁撓曲勁度及強度的衰減，本研究中亦考慮反覆載重下之包氏效應，進一步利用SRC梁的遲滯模式進行力量-位移分析，分析所得結果與SRC梁反覆載重實驗結果比較，具有相當的精度。最後，本研究利用SRC梁於反覆載重下之結構反應，推求其等效勁度及等效阻尼與位移韌性之經驗公式，以供耐震設計之參考。

    Effective designs of steel reinforced concrete beams require adequate estimations of member strength as well as associated deformation. This study focuses on the rational derivations for the analytical model of the moment-curvature relationship. Composite mechanism between steel and reinforced concrete was incorporated in the analytical model to acquire the load deformation relationship. The results from the flexural load tests are used to validate the accuracy of the proposed model. Comparisons between the experimental information and the analytical results demonstrate close moment-curvature relevance, which justifies the applicability of the proposed method.
    A hysteretic moment-curvature relationship to simulate the behavior of steel reinforced concrete beams under cyclic loading is further investigated in this study. This model adopts the load-deformation relationship acquired from the monotonic loading tests and incorporates the modified pivot behavior to reflect the characteristics on the deteriorations of stiffness and strength when members are subjected to cyclic loading. Influence of Bauschinger effects is included in the hysteretic model to establish the cyclic load-deformation relationship. Finally, a series of empirical expressions on the equivalent stiffness, damping and ductility are proposed for design references.

    摘 要 i Abstract ii 致 謝 iii 目錄 v 表目錄 viii 圖目錄 ix 照片目錄 xiii 第一章 緒論 1 1-1 簡介 1 1-2 研究動機與目的 3 1-3 研究步驟與內容 5 第二章 文獻回顧 7 2-1 現行規範回顧 7 2-2 SRC相關研究回顧 9 2-2.1 SRC梁及SRC梁柱構件 9 2-2.2 鋼骨與混凝土界面握裹力相關研究 11 2-3 遲滯行為 12 2-3.1 遲滯模型 12 2-3.2 遲滯模型於耐震行為應用 13 第三章 單向載重下SRC梁之承載行為 14 3-1 單向載重試驗 14 3-1.1 試驗配置 14 3-1.2 儀器配置 16 3-1.3 試驗進行流程 18 3-2 單向載重試驗結果分析 19 3-2.1 群組一：鋼骨斷面 19 3-2.2 群組二：SRC斷面 20 3-2.3 交互比較 21 3-3 彎矩-曲率模型推導與計算 21 3-3.1 材料組成律 22 3-3.2 握裹需求 24 3-3.3 握裹強度 27 3-3.4 部份複合之斷面分析 29 3-4 彎矩-曲率模型之驗証及敏感度分析 30 3-5 力量-位移分析及驗証 31 3-6 簡化的彎矩強度計算流程 33 3-6.1 RC部份的強度計算 33 3-6.2 鋼骨強度之計算 35 3-6.3 SRC之彎矩強度計算 38 第四章 反覆載重下SRC梁之承載行為 41 4-1 構件勁度及強度衰減模式 41 4-2 反覆載重試驗 45 4-2.1 試驗配置 45 4-2.2 試驗架設 45 4-2.3 試驗進行流程 46 4-3 反覆載重試驗結果分析 46 4-3.1 勁度衰減 47 4-3.2 強度衰減 48 4-4 遲滯模型推導 48 4-4.1 骨幹曲線 48 4-4.2 衰減模式 49 4-4.3 點及分枝(Points&branches) 52 4-4.4 法則(Rules) 55 4-4.5 遲滯模式運作流程 57 4-5 模型驗証 57 4-5.1 彎矩-曲率關係 57 4-5.2 力量-位移關係 58 第五章 SRC梁之耐震行為 60 5-1 能量消散 60 5-2 等效勁度 61 5-3 損壞評估 63 5-3.1 位移-累積能量組合型之損壞指標 63 5-3.2 反覆韌性與單載韌性之關係 64 第六章 結論與建議 67 6-1 SRC梁受單向載重的行為 67 6-2 SRC梁受反覆載重的行為 68 6-3 建議 68 參考文獻 69 圖表及照片 81

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