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Mathematical Problems in Engineering
Volume 2011, Article ID 310938, 23 pages
Research Article

Lyapunov-Based Control for Suppression of Wind-Induced Galloping in Suspension Bridges

College of Engineering and Petroleum, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait

Received 10 March 2011; Accepted 25 April 2011

Academic Editor: Paulo Batista Gonçalves

Copyright © 2011 Naif B. Almutairi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper investigates the suppression of galloping in a suspension bridge due to wind loads. The galloping phenomenon can be destructive due to the high-amplitude oscillations of the structure. Two controllers are proposed to generate the control force needed to suppress the vertical galloping in the suspended cables and in the bridge deck. SIMULINK software is used to simulate the controlled system. The simulation results indicate that the proposed controllers work well. In addition, the performance of the system with the proposed controllers is compared to the performance of the system controlled with a tuned mass damper.