MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation


Article Preview

For vibration control of long-span arch bridges under multi-support seismic excitation, this paper presents schemes of control to seismic responses of arch bridges with Magneto-Rheological dampers(MRD). In the semi-active control system of arch bridge-MRD, Linear Quadratic Gaussian (LQG)-based Sign function control algorithm is used to command MRD,and traveling wave effects on the responses of structure are considered. The Nimu arch bridge is used as a simulation example to verify the proposed control scheme. Numerical results show that traveling wave effects have no unfavorable influence on the control to response of arch bridge.



Edited by:

Xuejun Zhou






Z. Y. Li et al., "MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation", Applied Mechanics and Materials, Vols. 90-93, pp. 1402-1405, 2011

Online since:

September 2011




[1] Lichu Fan, Shide Hu, Aijun Ye, The seismic design of long-span bridge(In Chinese), China Communications Press , (2000).

[2] Liang Su, Shilin Dong and Shiro Kato: Journal of Constructional Steel Research, 63(6) . (2007), pp.725-734.

DOI: 10.1016/j.jcsr.2006.09.009

[3] B. F. Spencer Jr. , S. J. Dyke, M. K. Sain, et al: Journal of Engineering Mechanics. ASCE, 123(3). (1997), pp.230-238.

[4] G. Yang: Large-scale magnetorheological fluid damper for vibration mitigation: modeling testing and control [D]. University of Notre Dame, Indiana. USA. (2001).

[5] D. H. Wang and W. H. Liao: Smart Materials and Structures, Vol. 1. (2005), pp.111-126.

In order to see related information, you need to Login.