Machines. Technologies. Materials.
Vol. 20 (2026), Issue 2, pg(s) 53-55

MACHINES

Active damping in cable-stayed-bridge structures using hydraulic actuators

  • 1 Faculty of Civil Engineering – Polytechnic University of Tirana, Albania
  • 2 Structural Engineer - CEO Henars-Engineering ltd, Albania
  • 3 Faculty of Mechanical Engineering – Polytechnic University of Tirana, Albania

Abstract

Cable-Stayed-Bridges are an important part of today’s constructions in the traffic infrastructure. New materials and computational technology have led to the construction of longer and slender Cable-Stayed-Bridges are under the effect of dynamic loads as wind, traffic or earthquakes. Besides comfort restrictions, the vibrations of large amplitudes effects also the lifetime of the entire structure. Oscillations of Cable-Stayed-Bridges can be reduced significantly by active damping systems. In this paper is represented shortly an electro-hydraulic actuator concept for the active damping of Cable-Stayed-Bridges. This type of control is very efficient even in large bridges (up to 900 m span). Also, the tests on a large-scale bridge show the efficiency of active damping in Cable-Stayed-Bridges using electro-hydraulic actuators. The damping of deck and cables, has become crucial in the design of cable-supported structures. Because of the effectiveness of passive damping systems is limited, this new electro-hydraulic actuator concept is developed.

Keywords

References

  1. Institute of Fluid Power and Motion Control, Dresden University of Technology, 01062 Dresden, Germany.
  2. Olosz, A.; Kövesdi, B.; Hegyi, P.; Dunai, L. Improvement of Stockbridge Damper Design for Cable-Stayed Bridges. Appl. Mech. 2024, 5, 818-838. https://doi.org/10.3390/applmech5040046
  3. Bossens, F.; Dumoulin, C.; Magonette, G.;Marazzi, F. Active Control Experiment of a large-scale Cable-Stayed Bridge Mock-Up; 3 rd International Symposium on Cable Dynamics, Trondheim, Norwegen, 16.-18.8.1999.
  4. Zhu, X.; Jiang, Y.; Weng, G. Study of the Dynamic Reaction Mechanism of the Cable-Stayed Tube Bridge under Earthquake Action. Buildings 2024, 14, 2209. https://doi.org/10.3390/buildings14072209
  5. Preumont, A.; Helduser, S.; Försterling, H.; Bossens, F.; Bonefeld, R.: Active Tendon Control of Cable-Stayed Bridges: Control Strategy and Actuator Design; IABSE-Conference on: Cable-Stayed Bridges – Past, Present and Future, Malmö, 2.-4.6. 1999
  6. Achkire, Y.: Active Tendon Control of Cable-stayed Bridges; Dissertation, Active Structures Laboratory, Université Libre de Bruxelles, 1997
  7. Hysenlliu, M., Bidaj, A., Deneko, E., Bilgin, H. Comparative Seismic Assessment and Strengthening of Two Storey URM Dwellings in Kruja Insights from Four Case Studies. Journal of Integrated Engineering and Applied Sciences. 2026; 4(1); 286-305.
  8. Port de Normandie. https://www.choosenormandy.com/pont-de-normandie-connecting-normandy/
  9. Shi, Z.; Zhong, R.; Jin, N. Seismic Damage Identification of Composite Cable-Stayed Bridges Using Support Vector Machines and Wavelet Networks. Sustainability 2023, 15, 108. https://doi.org/10.3390/su15010108
  10. Preumont, A.: Vibration control of Active Structures: An Introduction; Kluwer Academic Publishes, 1997
  11. Liu, Q.; Liu, Z.; Zhao, J.; Lei, Y.; Zhu, S.; Wu, X. Seismic Optimization of Fluid Viscous Dampers in Cable-Stayed Bridges: A Case Study Using Surrogate Models and NSGA-II. Buildings 2025, 15, 1446. https://doi.org/10.3390/buildings15091446

Article full text

Download PDF