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Proceedings Paper

Semiactive control of a two-span bridge using field-controllable magneto-rheological dampers
Author(s): Yanming Liu; Faramarz Gordaninejad; Cahit A. Evrensel; Xiaojie Wang; Gregory H. Hitchcock
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Paper Abstract

This paper presents a semi-active control of a scaled two-span bridge structure. Magneto-rheological fluid (MRF) dampers are utilized as the semi-active devices and a bridge vibration control system is developed. Both open and closed-loop control systems are used to suppress the bridge deck motion under simple harmonic and simulated earthquake excitation. Effectiveness of each system is discussed. It is demonstrated that the closed-loop control systems can reduce the relative deck displacement of the bridge, while simultaneously limiting the peak damper forces.

Paper Details

Date Published: 20 April 2000
PDF: 8 pages
Proc. SPIE 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, (20 April 2000); doi: 10.1117/12.383143
Show Author Affiliations
Yanming Liu, Univ. of Nevada/Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada/Reno (United States)
Cahit A. Evrensel, Univ. of Nevada/Reno (United States)
Xiaojie Wang, Univ. of Nevada/Reno (United States)
Gregory H. Hitchcock, Univ. of Nevada/Reno (United States)


Published in SPIE Proceedings Vol. 3988:
Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu, Editor(s)

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