高阻尼樓房結構耐震研究

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题名:	高阻尼樓房結構耐震研究
作者:	柯忠良;Chong-Lian Ke
贡献者:	土木工程研究所
日期:	2000-06-20
上传时间:	2009-09-18 17:05:54 (UTC+8)
出版者:	國立中央大學圖書館
摘要:	本文目的在探討液體式阻尼器應用在增加樓房結構阻尼比，使其成為高阻尼比結構系統，進而大量提昇其與耐震能力之可行性，經由理論分析與數值計算，暸解各相關因素之影響。期發展出適合在樓房研究內容包括（一）高阻尼比結構系統應用於樓房耐震設計與補強之可行性及有效性。（二）應用模態分析方法進行高阻尼比結構耐震分析之準確性及其限制條件，與（三）基礎勁度對高阻尼比樓房耐研究結果顯示(一)安裝增效式阻尼裝置可大量提昇樓房結構之阻尼比，（二）高阻尼比樓房有甚佳之耐震能力。（三）應用本文所提方法調整各樓層阻尼係數後，可使用反應譜分析法分析安裝增效式阻尼裝置之樓房結構系統之地震反應，獲得保守的結果，供工程設計或補強之應用。 The objective of the present study is to investigate the possibility of the application of high damping ratio structure ,by using linear fluid dampers ,on the aseismic design and retrofitting of buildings .Factors related to the results of the applications will be studied numerically. Topics of study are (a) the feasibility and effectiveness of high damping ratio structural system used in the aseismic design and retrofitting of buildings (b) the accuracy of results by using method of model analysis to analyze the high damping ratio buildings structure to strong ground motions ,and (c) the influence of the stiffness of the foundation on dynamic responses of the heavily damped building . It is found that (a) the damping ratio of a building structure can be largely increased by using the efficiency –enhanced damping device systems,(b) the heavily damped building possesses high capability of seismic resistance ,and(c) the dynamic responses of a building with efficiency-enhanced damping device systems can be analyzed by using the response spectrum method to obtain the conservative results for design and retrofit of buildings if the damping coefficient of the device systems have been adjusted following the rule proposed in the present study.
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