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Frontiers of Structural and Civil Engineering

ISSN 2095-2430

ISSN 2095-2449(Online)

CN 10-1023/X

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Front. Struct. Civ. Eng.    2008, Vol. 2 Issue (1) : 43-48    https://doi.org/10.1007/s11709-008-0011-0
Investigations concerning seismic response control of self-anchored suspension bridge with MR dampers
YANG Menggang1, HU Jianhua2
1.Wind Engineering Research Center, Hunan University; 2.Hunan Provincial Institute of Transportation Planning, Survey and Design
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Abstract To mitigate the seismic response of self-anchored suspension bridges, equations of motion governing the coupled system of bridge- magneto-rheological (MR) dampers subject to seismic excitation are formulated by employing the phenomenological model of MR dampers. A corresponding computer program is developed and employed for studying the seismic response control of a self-anchored suspension bridge with a main span of 350 m. The effect of variable current and number of dampers on seismic response control is investigated. The numerical results indicate the longitudinal displacement of the tower top and bridge girder decrease with the increase in input current and number of MR dampers attached longitudinally at the tower-girder connections, and the internal forces of the tower are effectively attenuated as well. It appears that small electronic current (0.5 A in this study) may sufficiently attenuate the seismic responses for practical engineering applications.
Issue Date: 05 March 2008
 Cite this article:   
HU Jianhua,YANG Menggang. Investigations concerning seismic response control of self-anchored suspension bridge with MR dampers[J]. Front. Struct. Civ. Eng., 2008, 2(1): 43-48.
 URL:  
https://academic.hep.com.cn/fsce/EN/10.1007/s11709-008-0011-0
https://academic.hep.com.cn/fsce/EN/Y2008/V2/I1/43
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