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系統識別號 U0026-2007202015533800
論文名稱(中文) 近斷層速度脈衝效應對鋼筋混凝土柱塑性鉸參數定義之研究
論文名稱(英文) Study on the Characteristic of Plastic Hinge for Reinforced Concrete Column considering the Velocity Pulse Effect
校院名稱 成功大學
系所名稱(中) 土木工程學系
系所名稱(英) Department of Civil Engineering
學年度 108
學期 2
出版年 109
研究生(中文) 邱佳晨
研究生(英文) Chia-Chen Chiu
電子信箱 chiacheng30803@gmail.com
學號 N66071142
學位類別 碩士
語文別 中文
論文頁數 160頁
口試委員 指導教授-劉光晏
口試委員-洪崇展
口試委員-李宏仁
口試委員-侯琮欽
口試委員-蕭輔沛
中文關鍵字 鋼筋混凝土柱  近斷層地震  應變率  塑性鉸 
英文關鍵字 RC column  near-fault effect  strain rate  plastic hinge 
學科別分類
中文摘要 本研究進行鋼筋混凝土方柱在不同軸壓下之靜態與動態反覆載重實驗, 以了解近斷層地震之速度脈衝效應對柱構件側力與位移曲線影響。試體依照 混凝土結構設計規範設計,共計四座高寬比3.5之單曲率柱,在國家地震工程研究中心台南實驗室BATS測試。實驗變數為軸壓力,分別為0.1及0.3 fc’Ag,並各有一座靜態及動態試驗。速度參數係參考2017-2018年間在國家地震工程研究中心台南實驗室之兩棟七層樓RC建築物振動台實驗,由二樓樓版之速度歷時,選擇250 mm/sec。遲滯迴圈結果顯示,各柱之破壞模式為撓曲破壞,試體側向強度隨軸壓比提高而增加,最大位移則減少。此外,比較動態及靜態實驗結果,動態效應下試體最大側力及初始勁度有所提升,最大位移則與靜態相近。根據試體所量測之應變率,採用CEB和Malvar等人之動態成長因子修正混凝土與鋼筋應力應變模式,並搭配TEASPA與XTRACT程式可以獲得考慮速度脈衝之塑性鉸參數及預測之側推曲線。分析結果顯示,近斷層地震作用下應考慮速度脈衝效應對材料模式影響,以合理掌握柱構件之側力位移曲線。
英文摘要 In this study, the reinforced concrete square columns were subjected to repeated loading tests in both static state and dynamic state to understand their lateral force and displacement behavior under near-fault earthquakes. The experimental sample design is based on “Code for design of concrete structures”. The experimental group is 4 sets of reinforced column whose span-to-depth ratio is 3.5, and the predicted failure mode of all column is flexural failure. The variables are axial load ratio, including 0.1 and 0.3, and loading speeds, including 0, 250 mm/sec. The experimental results show that the lateral strength of the test body increases with the increase of the loading speed and axial load ratio, but the displacement of the peak intensity has a tendency to decrease. According to the strain rate measured by the specimen, the dynamic growth factor of CEB and Malvar el at. is used to correct the stress and strain modes of concrete and rebar. The TEASPA and XTRACT programs can be used to obtain the plastic hinge parameters considering the velocity pulse. The analysis results show that the influence of the velocity pulse effect on the material mode should be considered to reasonably predict the envelope of the lateral force displacement curve of the experiment.
論文目次 摘要 I
Abstract II
誌謝 VI
目錄 VII
表目錄 X
圖目錄 XII
第1章 緒論 1
1.1 研究動機與目的 1
1.2 研究內容與方法 2
第2章 文獻回顧 6
2.1 前言 6
2.2 應變率對材料的影響 6
2.2.1 混凝土 6
2.2.2 鋼筋 7
2.3 應變率對構件的影響 8
2.3.1 柱構件 8
2.3.2 梁構件 8
2.3.3 版構件 9
2.3.4 牆構件 9
2.3.5完整結構物反應預測 9
2.4 TEASPA 3.1 塑鉸 10
2.4.1 TEASPA公式推演 10
2.4.2 TEASPA塑鉸驗證 12
第3章 實驗規劃 50
3.1 前言 50
3.2 試體設計 50
3.3 試體施作 51
3.3.1 前言 51
3.3.2 基礎施作 51
3.3.3 柱子施作 51
3.3.4 安裝應變計流程 52
3.4 試驗規劃 53
3.4.1 試體邊界條件 53
3.4.2 外力加載系統 53
3.4.3 輸入波 54
3.4.4 量測系統 54
3.4.4 試驗流程 55
第4章 實驗結果與討論 76
4.1 前言 76
4.2 材料試驗 76
4.2.1 混凝土 76
4.2.2 鋼筋 77
4.3 試體裂縫發展 78
4.4 位移計與Motion Capture量測數值 80
4.5 加載速度與軸壓量測數據 81
4.6 應變計量測數據 81
4.7 試體力與位移關係行為 82
4.7.1 遲滯迴圈與包絡線 82
4.7.2降伏強度、最大強度及初始勁度 83
4.7.3降伏位移、極限位移及韌性 83
第5章 程式模擬與分析 123
5.1 前言 123
5.2 動態成長因子 123
5.3 彎矩曲率分析與彎矩面積法 124
5.3.1 XTRACT軟體 124
5.3.2彎矩面積法 124
5.4 非線性靜力側推分析 127
5.5 力與位移曲線比較 127
第六章 結論與建議 157
6.1 結論 157
6.2 建議 157
參考文獻 158

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