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論文中文名稱:位移設計法應用於黏滯阻尼器之隔震橋梁 [以論文名稱查詢館藏系統]
論文英文名稱:Application of the displacement design method to the base isolated bridge with viscous dampers [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木與防災研究所
畢業學年度:100
出版年度:101
中文姓名:柯建宇
英文姓名:Chien-Yu Ko
研究生學號:99428020
學位類別:碩士
語文別:中文
口試日期:2012-07-19
論文頁數:65
指導教授中文名:廖文義
口試委員中文名:張順益;柴駿甫
中文關鍵詞:位移設計法隔震支承黏滯阻尼器非線性歷時分析
英文關鍵詞:displacement design methodisolatedviscous dampernonlinear time history analysis
論文中文摘要:本論文提出一新位移設計法應用於具隔震支承與黏滯阻尼器之混凝土橋梁。於本論文中橋墩和主梁均假設保持彈性,隔震器與黏滯阻尼器則考慮其非彈性行為。設計方法為根據耐震性能水準給定一設計位移,採位移設計法進行設計,設計方法著重於隔震器與橋墩頂端側向位移之控制,利用設計位移反應譜於一理想化為單自由度的規則橋樑上,經由地震之作用,直接獲得相同之歷時位移。主要研究方法為當隔震橋梁為線性等效時提高位移之預測能力,與直接計算橋墩的黏滯阻尼器之阻尼係數來控制,其於地震下位移小於設計位移,並省略傳統力法設計之非線性迭代過程,最後使用歷時分析的結果進行驗證本設計方法。
論文英文摘要:This paper introduces a new displacement-based design procedure for concrete bridges on bilinear isolated devices with viscous dampers. The limit state considered in this study is such that the piers and the deck remain elastic, while the isolated devices are allowed to behave inelastically. The design method is given by the designers to a level of performance. The proposed method emphasizes material strain control by means of the lateral displacement of isolator bearings and the lateral displacement of the pier top. The response is obtained directly from the elastic displacement response spectrum and is applicable to regular bridges with rigid superstructures that can be idealized as a single degree of freedom (SDOF) system. The proposed methodology improves the displacement prediction capability of the linear equivalent model when it is applied to bridges supported on isolators, and the fast calculation of the damping coefficient of the viscous dampers to limit the maximum displacement of the structural elements under the target value, avoiding the iterative nonlinear calculations of the current force-based design. The application of the proposed methodology is presented and their results are validated by nonlinear time history analysis.
論文目次:目錄
摘要 i
ABSTRACT ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 2
1.3 本文內容 3
第二章 基本原理 4
2.1 連續多跨簡支橋梁 4
2.2 黏滯阻尼器 6
2.3 黏滯阻尼器之阻尼係數 7
2.3.1 線性阻尼器 7
2.3.2 非線性阻尼器 8
2.4 隔震系統 9
2.5 彈性位移反應譜 10
第三章 位移設計法 11
3.1 設計性能目標 11
3.2 含黏滯阻尼器橋墩之設計 12
3.2.1 單一橋墩位移設計法 12
3.2.2 設計位移之準確性 15
3.3 位移設計法應用於隔震橋梁 15
3.3.1 範例一(四公尺橋墩未含黏滯阻尼之連續橋梁) 15
3.3.2 範例二(二十四公尺橋墩含黏滯阻尼之連續橋梁) 18
第四章 地震歷時分析 19
4.1 橋梁結構 19
4.1.1 分析相關參數 19
4.1.2 基本振動週期 22
4.2 輸入地震歷時 22
4.3 分析結果 22
4.4 分析之結果討論與統計 23
第五章 結論與建議 63
5.1 結論 63
5.2 建議 63
參考文獻 64
論文參考文獻:參考文獻
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【9】 Yun H. B., and Tasbighoo F., Masri S. F., Caffrey J. P., Wolfe R. W., Markis N. and Black C. (2008), Comparison of modeling approaches for full scale nonlinear viscous dampers, Journal of Vibration and Control, 14:51-76.
【10】 Jara M. and Casas J. R. (2006), A direct displacement-based method for the seismic design of bridges on bi-linear isolation devices, Engineering Structures, 28: 869–879.
【11】 Anil K. Chopra, M. (2001), Dynamics of structures: Theory and applications to earthquake engineering. Prentice Hall, Upper Saddle River, NJ.
【12】 Anil K. Chopra, M. EERI, and Rakesh K. Goel, M. EERI.(2000), Direct Displacement-Based Design: Use of Inelastic Design Spectra Versus Elastic Design Spectra. Earthquake Spectra.
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論文全文使用權限:同意授權於2017-08-13起公開