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題 名 | A Fractional Derivative Model of HDR Bearings with Temperature Effect=含溫度效應之高阻尼橡膠支承墊分數微分模式 |
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作 者 | 黃震興; 王震中; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 11:1 1999.03[民88.03] |
頁 次 | 頁45-54 |
分類號 | 441.8 |
關鍵詞 | 隔震; 高阻尼橡膠支承墊; 分數麥斯威爾模式; 溫度效應; Seismic isolation; High damping rubber bearings; Fractional derivative maxwell model; Temperature effect; |
語 文 | 英文(English) |
中文摘要 | 本文使用振動臺試驗探討高阻尼隔震橡膠支承墊於不同溫度下之動力力學持性。 支承墊於試驗中所受之最大剪力應變約為 200 %。 支承墊之有效剪力模數及等效阻尼比則 依正弦波試驗所得之穩態反應及美國 AASHTO 橋梁隔震規範之定義而決定之。本文推導出含 溫度效應之高阻尼橡膠支承墊麥斯威爾分數微分模式,進而推導出振動臺試驗結構份數微分 運動方程式。該麥斯威爾微分運動方程式所含參數則由該運動方程式所推導出之相位角與正 弦波試驗所得之相位角依最小平方差的方式求得。這些參數將被表為溫度的函數。該分數微 分分析模式使用預測高阻尼橡膠支承墊於不且溫度下之地震力反應的準確性將由振動臺試驗 結果與分析結果的比較來印證之。為便利所提之分析模式於實際工程之應用,該分析模式將 由一迭代方法配合以分析隔震橋梁之地震力反應。 |
英文摘要 | High damping rubber (HDR) bearings as an effective seismic isolation device of structures are tested in this study using a shaking table. The bearings are deformed up to a maximum shear strain of approximately 200% under various designated temperatures. Equivalent linear characteristics including effective shear modulus and equivalent viscous damping ratio are determined according to AASHTO specifications based on steady-state responses of sinusoidal tests. The fractional derivative Maxwell model with temperature effect is formulated and an explicit integration scheme is incorporated to solve the-equation of motion of the test structure subject to earthquake ground motions. All numerical parameters of the fractional derivative Maxwell model are identified from the best fit to the phase angle determined from sinusoidal tests and are expressed as functions of temperature. The proposed model is validated by comparing the predicted and measured seismic responses of the bearing. In order to facilitate practical applications of the proposed model, the fractional derivative Maxwell model is incorporated into an iteration procedure used in bridge isolatin practices. |
本系統中英文摘要資訊取自各篇刊載內容。