Lateral Vibration of Suspension Bridges
Publication: Journal of Structural Engineering
Volume 112, Issue 9
Abstract
Besides the pendulum action developed by the suspended deck, the restoring force exerted by a cable during lateral displacements is expressed by the horizontal component of the cable tension, times the curvature of the cable in the horizontal plane. Some authors consider an additional term linked to a pendulum effect of the cable itself, caused by the uplift movement which accompanies the lateral displacements. In the present note, the mathematical model is reviewed to show that, in the usual assumption of small amplitude vibrations, the presence of this second term is due to a sign error in the expression of the strain energy of the cable. Some evaluation of the first vibration modes period is reported.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 9 • September 1986
Pages: 2169 - 2173
Copyright
Copyright © 1986 ASCE.
History
Published online: Sep 1, 1986
Published in print: Sep 1986
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