<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In the case of cable-stayed bridges with very large spans of over 400m, the common engineering practice at the national level requires the placement of vibration mitigation devices in the form of external dampers (usually of the viscous type). The main disadvantage of this solution is due to the relative positions of these devices along the cable, which are very close to the edge, in a zone where their influence on the cable is minimal.</p>
<p>This paper presents a different way of using these devices, by fixing them between adjacent cables. This eliminates the disadvantage presented in the previous paragraph and the efficiency of the device is expected to increase greatly. The paper presents parametric variations of the viscosity of such a device in different scenarios of their positioning along the cables, also correlated with the influence on the cable system’s dynamic response.</p>
</abstract>

In the case of cable-stayed bridges with very large spans of over 400m, the common engineering practice at the national level requires the placement of vibration mitigation devices in the form of external dampers (usually of the viscous type). The main disadvantage of this solution is due to the relative positions of these devices along the cable, which are very close to the edge, in a zone where their influence on the cable is minimal.
This paper presents a different way of using these devices, by fixing them between adjacent cables. This eliminates the disadvantage presented in the previous paragraph and the efficiency of the device is expected to increase greatly. The paper presents parametric variations of the viscosity of such a device in different scenarios of their positioning along the cables, also correlated with the influence on the cable system’s dynamic response.

Cable Stays Vibration Mitigation by Means of Viscous Dampers Attached to Adjacent Cables

Assistant, Technical University of Civil Engineering of Bucharest – Faculty of Railways, Roads and Bridges

Professor, PhD, Technical University of Civil Engineering of Bucharest – Faculty of Railways, Roads and Bridges

Romanian Journal of Transport Infrastructure

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In the case of cable-stayed bridges with very large spans of over 400m, the common engineering practice at the national level requires the placement of...

Cable Stays Vibration Mitigation by Means of Viscous Dampers Attached to Adjacent Cables

Publié en ligne: 03 mars 2023

Pages: 1 - 21

DOI: https://doi.org/10.2478/rjti-2022-0016

Mots clés
cable stayed bridge, viscous damper, vibrations, energy dissipation

© 2022 Urdăreanu Vlad Daniel et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Cable Stays Vibration Mitigation by Means of Viscous Dampers Attached to Adjacent Cables

Publié en ligne: 03 mars 2023

Pages: 1 - 21

DOI: https://doi.org/10.2478/rjti-2022-0016

Mots cléscable stayed bridge, viscous damper, vibrations, energy dissipation

© 2022 Urdăreanu Vlad Daniel et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
cable stayed bridge, viscous damper, vibrations, energy dissipation