Performance and Repair Design of Stay Cables with Rain/Wind-Induced Vibrations
Publication: Journal of Performance of Constructed Facilities
Volume 22, Issue 6
Abstract
The results of a multifaceted investigation into large-amplitude vibrations of bridge stay cables are presented. The vibration of the stay cables occurred under light rain and wind conditions, and resulted in low-frequency, large-amplitude oscillations having recorded displacements of over . Due to concerns about the implications of the vibrations on the integrity and durability of the stay cables and observed damage to stay-cable anchorage components, an investigation and repair program was developed. The final repair program arose from an investigation that combined the talents of practicing engineers, the Texas Department of Transportation, and representatives from four universities. Ultimately, a combination of supplemental hydraulic dampers and cable restrainers were used to mitigate the vibrations. This paper describes the results of the investigation and presents the practice-based methodology used to develop the implemented repair program.
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Acknowledgments
The writers gratefully acknowledge the extensive contributions of the individuals and the institutions participating in the assessment and repair of the Fred Hartman and Veterans Memorial Bridges: the Texas Department of Transportation for initiating and supporting the unprecedented scope of work; Keith Ramsey and Elton Brown at TxDOT; Nicholas Jones, Joseph Main, and the late Jack Spangler of Johns Hopkins University; Sharon Wood, Karl Frank, and John Breen at the University of Texas at Austin; Suzanne Weaver Smith at the University of Kentucky; Kishor Mehta, Scott Phelan, and Partha Sarkar at Texas Tech University; Jeffrey West, Jeffrey Wouters, Jaime Mora, Jason Yates, Joe Starkey, and Fernando Ulloa at WDP; and Mike Lynch, formerly of TxDOT. The views and opinions expressed in this paper are solely those of the writers and do not necessarily reflect those of the sponsoring agency.
References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 22 • Issue 6 • December 2008
Pages: 364 - 372
Copyright
© 2008 ASCE.
History
Received: Jul 25, 2007
Accepted: Jun 6, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
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