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題名 | 橋梁用增效式阻尼裝置之研究=Study of an Enhanced-Efficiency Damping Device System for Bridges |
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作者 | 唐治平; 李建生; | 書刊名 | 中國土木水利工程學刊 |
卷期 | 9:4 1997.12[民86.12] |
頁次 | 頁593-603 |
分類號 | 441.8 |
關鍵詞 | 流體式阻尼器; 槓桿; 橋梁; 耐震分析; Fluid damper; Leverage; Bridge; Aseismic analysis; |
語文 | 中文(Chinese) |
中文摘要 | 本文目的在探討線性流體式阻尼器之勁度以及阻尼係數均為橋梁結構基本振頻之函數之假設,在橋梁耐震分析上是否可以接受,並瞭解影響增效式阻尼裝置提昇橋梁耐震能力之相關因素,俾供實際工程應用時選擇適當元件之參考。研究結果顯示,採用上述之假設在時域進行地震反應計算,其結果之正確程度甚高。應用增效式阻尼裝置時,連接桿力臂比α與其斷面二次慣矩與阻尼器數目之選擇,須同時考慮橋臺橋軸向勁度,上部結構最大允許相對位移,橋墩與橋臺最大剪力容量,以及阻尼器之承載能力與伸展空間需求等因素。 |
英文摘要 | The objectives of the present studies are:1.to investigate the assumptions regarding the dependence of stiffness and damping coefficient of a linear fluid damper on the natural frequency of the bridge in dynamic analysis, 2.to understand the factors affecting the aseismic capability of a bridge equipped with an enhanced-efficiency damping device. It is found that the assumptions are acceptable in time domain aseismic analysis of a bridge equipped with the damping device. The selection of properties of linking members and fluid dampers to form the damping device system should consider the stiffness of abutments, the allowable relative displacement of the superstructure, the allowable shear force of a pier and an abutment and the loading capacity and space demand of dampers. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。