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題名 | 摩擦式隔震基座結構行為之動力數值分析=Numerical Analysis for the Behavior of Structures with Frictional Base-Isolation System |
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作者 | 王文清; 簡耀鴻; Wang, Wen-Ching; Chien, Yaw-Houng; |
期刊 | 技術學刊 |
出版日期 | 19960300 |
卷期 | 11:1 1996.03[民85.03] |
頁次 | 頁17-27 |
分類號 | 441.2 |
語文 | chi |
關鍵詞 | 隔震基座; 栓接; 不連續變形分析法; Base-isolation; Bolt connect; Dda; |
中文摘要 | 本文主旨在於討論會摩擦式隔震基座之結構體在振動外力作用之下經由摩擦消能方式減低受震之情形。研究過程採用不連續元素法直接模擬上部結構以及摩擦面。計算內容包含摩擦面力量傳遞檢核,單自由度系統在不同質量比與摩擦係數下受不同頻率之振動外力作用下之反應。 結果顯示,不連續元素法能夠適切模擬滑動摩擦隔震減低上部結構體所受地震外力之效果。摩擦係數愈小愈能發揮隔震效果。由此推論,若能以不連續面有效的將地震外力隔絕在結構體之外,自可實質上減免結構體直接抵抗震力之現象。進一步的研究建議應再對摩擦機制與垂直振動影響作進一步探討。 |
英文摘要 | The major concern of this paper is to study the dynamic behavior of structures with frictional base isolation system. The main effort was put on using discontinuous element method to analyze response of base isolated single degree of freedom system under harmonic loading. Analyses include the translation of friction force from ground to structural base, the response of simple structures with various mass ratio and the influence of cyclic loading with different frequencies. This research indicates that using the discontinuous element method is a good way to simulate the behavior of frictional base-isolated structures. Analytical results prove that lower the friction coefficient of isolation interface will minimize the response of structures under ground shaking. Further study is suggested on the mechanism for frictional contact and the effect of structure rocking under seismic loading. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。