Research Article
May 1979
Suspension Bridge Vibrations: Computed and Measured
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VIEW THE REPLYAuthors: Peter Graham Buckland, M.ASCE, Aegide M. van Selst, Johann H. Rainer, AM.ASCE, Brian D. Morgenstern, and Roy Hooley, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 105, Issue 5
Abstract
Measured frequencies of a suspension bridge were found to differ from those calculated by a wide margin. The discrepancies were found to be caused by sliding deck joints not sliding at small amplitudes, which affected the stiffness. When these and other minor effects were correctly modeled the agreement was excellent. Lateral-torsional coupled motion caused by a channel type cross-section was found to influence the position of the center of rotation, which has an effect on the aerodynamic behavior. Measured values of structural damping are given, and a comparison is made between approximate and exact methods of computing natural frequencies and mode shapes.
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Published In
Journal of the Structural Division
Volume 105 • Issue 5 • May 1979
Pages: 859 - 874
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: May 1979
Published online: Feb 1, 2021
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Authors
Affiliations
Peter Graham Buckland, M.ASCE
Principal; Buckland and Taylor Ltd., Consulting Engrs., Vancouver, B.C., Canada
Aegide M. van Selst
Manager; Tresco Projects Ltd., Vancouver, B.C., Canada
Johann H. Rainer, AM.ASCE
Sr. Research Officer; National Research Council, Ottawa, Canada
Brian D. Morgenstern
Sr. Design Engr., Buckland and Taylor Ltd., Vancouver, B.C., Canada
Roy Hooley, M.ASCE
Prof. of Civ. Engrg., Univ. of British Columbia, Vancouver, B.C., Canada
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.