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研究生: 許舜程
Shun-cheng Hsu
論文名稱: 滾動隔震多自由度結構振動台試驗研究
Shake table study of a multi-degree-of-freedom structure seismically isolated with roller bearings
指導教授: 歐昱辰
Yu-Chen Ou
口試委員: 陳君弢
Chun-tao Chen
邱建國
Chien-kuo chiu
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: 2010
畢業學年度: 98
語文別: 中文
論文頁數: 204
中文關鍵詞: 隔震滾動隔震支承振動台滾動摩擦
外文關鍵詞: isolation, roller seismic isolation, shake table, rolling friction
相關次數: 點閱:383下載:7
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  • 滾動隔震支承在水平地震力作用下擁有固定的加速度和回復力,藉由此兩種結構特性,故本研究將其導入多自由度隔震系統中應用。
    本論文首先就滾動隔震支承發展歷史進行簡要的陳述,並透過動力分析來推導滾動隔震系統動力平衡方程式,藉以了解其力學行為。
    本研究係採用縮尺多自由度結構試驗,並對該結構進行基底層單向、雙向、三向及中間層單向滾動隔震之振動台試驗,以便了解結構物各樓層之受力分佈情形及分析其力學行為,另就結構物基底層及中間層隔震效益進行探討。
    本研究所採用之滾動隔震系統採雙向滾軸設計,藉此將各個方向的地震力轉換成與滾軸行徑方向相同的雙向分力,此將能抵抗各方向地震力。經試驗證實,本隔震系統具有回復力及獨立頻率,使結構物在地震過後能回復本位及不易受不同地震頻率而改變結構物地震頻率反應。惟其抵抗垂直向地震力表現不佳,尚待研究克服,以確保結構物在地震作用下之穩定性。
    本研究藉由SAP2000軟體來分析多自由度結構在地震力作用下之力學行為,並透過動力分析所得理論值,予以建立SAP2000軟體之滾動及滾動摩擦等重要參數。此外,透過在國家地震中心所得到的試驗數據做比較與分析。
    本論文最後也將提及相關改進建議,也希望藉此滾動隔震系統研究,提供後續參與隔震設計的工程師參考。最後,希望我們能藉由提升隔震技術,來擺脫地震造成國人傷亡的歷史宿命,共同維護國人居家安全。


    Roller seismic isolation bearings under the action of the horizontal seismic force has a fixed spectral acceleration and the restoring force, by these two structural characteristics, this study will import application seismic isolation system of multi-degree of freedom.
    First, this paper is brief statement of develop history of the roller seismic isolation bearings and permeation the dynamic analysis to derive the dynamic equilibrium equations. To understand its mechanical behavior.
    In this study, we use scale test of multi-degree of freedom structures and we are also proceed the shaking table tests of the basal story seismic isolation of one-way, two-way, three-way and the middle story seismic isolation of one-way. To understand the structures force distribution of floor and analysis of their mechanical behavior. The other Confer with the structures seismic isolation benefits of basal story and the middle story.
    In this study, roller seismic isolation systems are used design by two-way roller, let the seismic forces in all directions to be transformed the same direction with two-way roller acts.
    This will be able to resist seismic forces in all directions. The test confirmed that the seismic isolation system has the restoring forces and independent frequency, Its can restore Original location of the structures after an earthquake and less susceptible to changes the structure seismic frequency response in different frequency of seismic. Only resistance to vertical seismic forces as poor performance, yet research to overcome. To ensure the structure in the stability under the earthquake effect.
    This research use SAP2000 software to analyze mechanical behavior of multi-degree of freedom structure under earthquake effect, and theoretical values obtained through dynamic analysis, to build SAP2000 software the rolling and rolling friction, and other important parameters. Besides, permeation obtain test data at the national earthquake center to do comparison and analysis.
    Finally, this paper will also be referred to the relevant recommendations for improvement, also hope the roller isolation system research provides follow-up participate isolation design engineers reference. Finally, I hope we can raise through isolation technology to get out of the historical fate of earthquake victims, and jointly safeguard the safety of people at home.

    摘 要 I Abstract III 誌 謝 V 目 錄 VII 表 目 錄 IX 圖 目 錄 X 第一章 緒論 1 1.1 研究動機與目的 1 1.2 隔震基本原理 3 1.3 文獻回顧 4 1.4 本文內容 6 第二章 研究理論與方法 13 2.1 滾動隔震支承組成構件 13 2.2 滾動隔震支承受力分析 14 2.2.1 靜摩擦力與滾動摩擦力 14 2.2.2 滾動支承之受力行為 15 2.3運動方程式 20 2.4 滾軸不發生滑動行為的條件 22 2.5 上部結構隆起 24 2.6 垂直載重承載能力 25 2.7 傾斜角建議值 26 第三章 縮尺多自由度結構振動台試驗 33 3.1 選擇地震資料 33 3.2 縮尺多自由度結構與原型相似性探討 34 3.3 縮尺多自由度結構滾動隔震試驗 36 3.3.1 基底層隔震 36 3.3.2中間層隔震 39 第四章 試驗結果分析 70 4.1 位移歷時反應 70 4.2 加速度歷時反應 72 4.2.1 基底層隔震試驗 72 4.2.2 中間層隔震試驗 74 4.3 樓層剪力 75 4.3.1 基底層隔震試驗 75 4.3.2 中間層隔震試驗 75 4.4 遲滞迴圈 75 4.5 柱軸力反應 77 第五章 滾動支承縮尺結構模擬與分析 181 5.1 分析程式 181 5.2 滾動支承模擬分析模式 182 5.3 滾動支承試驗與分析比較 183 第六章 結論與建議 198 6.1 結論 198 6.2 建議 199 參考文獻 203

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