Hybrid Control of Seismic-Excited Bridge Structures
學年 84
學期 1
出版(發表)日期 1995-11-01
作品名稱 Hybrid Control of Seismic-Excited Bridge Structures
作品名稱(其他語言)
著者 Wu, Jong-cheng
單位 淡江大學土木工程學系
出版者
著錄名稱、卷期、頁數 Journal of Earthquake Engineering and Structural Dynamics 24(11), p.1437-1451
摘要 Recently, several hybrid protective systems have been explored for applications to seismic-excited bridge structures. In particular, two types of aseismic hybrid protective systems have been shown to be quite effective: (i) rubber bearings and variable dampers (or actuators), and (ii) sliding bearings and actuators. In this paper, control methods are presented for these hybrid protective systems. The control methods are based on the theory of variable structure system (VSS) or sliding mode control (SMC). Emphasis is placed on the static (direct) output feedback controllers using only the information measured from a few sensors without an observer. Simulation results demonstrate that the control methods presented are robust with respect to system parametric uncertainties and the performance is quite remarkable. Sensitivity studies are conducted to evaluate the effectiveness of hybrid protective systems and passive sliding isolators for reducing the response of seismic-excited bridge structures. The advantages of each protective system are demonstrated by simulation results for a wide range of earthquake intensities.
關鍵字
語言 en
ISSN 1096-9845
期刊性質 國內
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國別 TWN
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