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Federal Highway Administration
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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
| REPORT |
| This report is an archived publication and may contain dated technical, contact, and link information |
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| Publication Number: FHWA-HRT-14-049 Date: August 2014 |
Publication Number:
FHWA-HRT-14-049
Date: August 2014 |
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Cable-stayed bridges have become the form of choice over the past several decades for bridges in the medium-to-long-span range. In some cases, serviceability problems involving large amplitude vibrations of stay cables under certain wind and wind-rain conditions have been observed. This study was conducted in response to State transportation departments’ requests to develop improved design guidance for mitigation of excessive cable vibrations on cable-stayed bridges. The study included finite element modeling of representative individual cables as well as networks of cables to simulate dynamic behavior and evaluate various mitigation details such as dampers and crossties. The results of this study will be made available to the DC-45 Cable-Stayed Bridge Committee for the Post-Tensioning Institute for consideration during their periodic updates of the Guide Specification, Recommendations for Stay Cable Design, Testing, and Installation.(1)
This report will be of interest to bridge engineers, wind engineers, and consultants involved in the design of cable-stayed bridges. It is the first in a series of reports addressing aerodynamic stability of bridge stay cables that will be published in the coming months.
Jorge E. Pagán-Ortiz
Director, Office of Infrastructure
Research and Development
Notice
This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document. This report does not constitute a standard, specification, or regulation.
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