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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

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Publication Number:  FHWA-HRT-14-049    Date:  August 2014
Publication Number: FHWA-HRT-14-049
Date: August 2014


Mitigation of Wind-Induced Vibration of Stay Cables: Numerical Simulations and Evaluations


A study on wind-induced vibration of stay cables equipped with different types of mitigation measures was conducted through numerical simulations and analyses. The use of transverse crossties, external dampers, and a combination of the two as mitigation measures were analyzed with respect to their relative merits and shortcomings. Explicit time-history analysis of the behavior of stay systems subjected to realistic wind events was performed as well as a sensitivity study to assess the influence of parameters involved in the design of these measures. The following summary highlights the findings and conclusions drawn from the current study: