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研究生: 洪睿呈
JUI-CHENG HUNG
論文名稱: 對角線鋼筋混凝土連接梁在固定軸向勁度下之往復載重行為
Cyclic Behavior of Diagonally Reinforced Concrete Coupling Beam with Fixed Axial Stiffness Level
指導教授: 鄭敏元
Min-Yuan Cheng
口試委員: 陳正誠
Cheng-Cheng Chen
黃世建
Shyh-Jiann Hwang
歐昱辰
Yu-Chen Ou
鄭敏元
Min-Yuan Cheng
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: 2023
畢業學年度: 111
語文別: 中文
論文頁數: 181
中文關鍵詞: 對角線鋼筋混凝土連接梁軸向勁度束制軸向勁度剪力需求跨深比
外文關鍵詞: diagonal, reinforced concrete coupling beam, axial stiffness restraint, axial stiffness, shear demand, aspect ratio
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耦合剪力牆系統為一種經濟且高效率之抗側力系統,實務上常作為主要抗震元件,可有效地控制結構物的位移角。在強地震往復作用下,連接梁在沒有軸向束制的情況下會因鋼筋降伏而產生殘餘軸向變位,但實際上連接梁軸向變形會受到面內勁度相當高的剪力牆束制,鋼筋混凝土構件受到軸力作用一般而言會提升撓曲強度但損失變形能力,過去雖然已有部分學者針對此議題從事相關研究,但大部分測試都是在固定軸壓方式進行,而連接梁應該比較接近固定勁度的方式承受軸向束制,據此,本研究計畫有系統的規劃一系列試體,期望透過實驗結果能提供此領域更多參考資訊。

本研究規劃七組連接梁試體來探到不同軸向勁度對鋼筋混凝土剪力連接梁往復載重行為的影響。所有試體均以對角線鋼筋作設計,僅一作為傳統梁配筋方式搭配斜向繫筋,主要測試變數包含(1)連接梁剪力需求,以及(2)連接梁軸向束制勁度。試驗結果顯示結果可觀察到高、低設計剪力(即配筋量),以及不同軸向勁度束制對極限 位移角du的影響並不顯著。


Coupled shear wall systems are a type of economical and highly efficient lateral force resisting system, typically employed as a major seismic element, effectively controlling the interstory drift of structures. Under strong seismic reciprocation, the connecting beams, without axial restraint, may experience residual axial displacement due to reinforcement yielding. However, in reality, the axial deformation of the connecting beam is restrained by the in-plane stiffness of the shear wall, which is quite high. Reinforced concrete components subjected to axial forces generally increase their flexural strength but lose deformability. Although some scholars have conducted related research on this topic, most tests are performed under fixed axial pressure. The connecting beam should more closely resemble fixed stiffness when subjected to axial restraint. Based on this, this study systematically plans a series of specimens, hoping that the experimental results can provide more reference information for this field.

This study plans seven sets of coupling beam specimens to investigate the effect of different axial stiffness on the cyclic loading behavior of reinforced concrete shear coupling beams. All specimens are designed with diagonal reinforcement, with only one using traditional beam reinforcement method in conjunction with diagonal stirrups. The main test variables include (1) shear demand of the coupling beam, and (2) axial restraint stiffness of the coupling beam. The test results show that the effects of different design shear and fixed axial stiffness restraints on the ultimate interstory drift angle du are not significant.

致謝 V 摘要 VII Abstract VIII 目錄 IX 圖目錄 XIII 表目錄 XVII 第一章 緒論 1 1.1研究背景 1 1.2 研究目的 4 1.3 研究方法 5 1.4 研究內容架構 5 第二章 文獻回顧 7 2.1 連接梁對角線鋼筋發展 7 2.1.1 Paulay(1969) 7 2.1.2 Barney等學者 (1976) 8 2.1.3 Tegos和Penelis(1988) 9 2.1.4 Tassios等學者(1996) 10 2.1.5 Galano與Vignoli (2000) 11 2.1.6 Lim等學者(2016) 12 2.2 實驗配置 13 2.2.1 Paulay與Binney (1974) 13 2.2.2 Tegos和Penelis (1988) 14 2.2.3 Tassio等學者(1996) 15 2.2.4 Galano與Vignoli (2000) 15 2.2.5 Canbolat等學者(2005) 16 2.2.6 Naish等學者(2013) 17 2.2.7 Lim等學者(2016) 18 2.2.8 Lequesne等學者(2013) 19 2.2.9 Zeng等學者(2019) 19 2.2.10 Poudel等學者(2021) 21 2.3 現行ACI 318-19規範規定 22 第三章 實驗規劃 25 3.1 試體設計 25 3.2實驗配置 37 3.3試驗量測裝置 43 3.3.1鋼筋應變量測 43 3.3.2外部位移量測 45 3.3.3外部變形量測 47 3.4 試體製作 50 3.4.1 鋼筋應變計 50 3.4.2 底部混凝土塊施工 53 3.4.3 連接梁試體與頂部混凝土塊施工 55 3.4.4施工困難與創新 59 第四章 試驗結果分析 61 4.1 材料試驗結果 61 4.1.1混凝土抗壓試驗 61 4.1.2鋼筋拉力試驗 64 4.2試體測試結果 70 4.2.1裂縫觀察與破壞模式 70 試體L0_2.0 72 試體LLL_2.0 73 試體LL_2.0 74 試體H0_2.0 77 試體HLL_2.0 78 試體HL_2.0 80 試體HHt_2.0 82 4.2.2 力量-位移曲線 83 4.3 結果討論 94 4.3.1 強度 94 4.3.2 變形量 100 第五章 結論 103 參考文獻 105 附錄A 各試體裂縫發展紀錄表 109 附錄B 各試體測試過程 125 試體L0_2.0: 125 試體LLL_2.0: 131 試體LL_2.0: 137 試體H0_2.0: 143 試體HLL_2.0: 148 試體HL_2.0: 154 試體HHt_2.0: 160

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鄧莉亞,2023,「鋼筋混凝土低矮剪力牆介面剪力行為_跨深比0.5」 ,碩士論文 ,國立臺灣科技大學營建工程系 ,台北。

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