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Active tendon control of suspension bridges: Study on the active cables configuration

  • Tian, Zhui (Active Structures Laboratory, Universite Libre de Bruxelles (ULB)) ;
  • Mokrani, Bilal (Active Structures Laboratory, Universite Libre de Bruxelles (ULB)) ;
  • Alaluf, David (Active Structures Laboratory, Universite Libre de Bruxelles (ULB)) ;
  • Jiang, Jun (Active Structures Laboratory, Universite Libre de Bruxelles (ULB)) ;
  • Preumont, Andre (Active Structures Laboratory, Universite Libre de Bruxelles (ULB))
  • Received : 2016.11.04
  • Accepted : 2017.02.24
  • Published : 2017.05.25
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Abstract

In a previous study, the potential of damping suspension bridges with active stay cables has been evaluated on a numerical model of a suspension bridge, and demonstrated experimentally on a laboratory mockup. In this paper, we extend our study to explore two different configurations of the active stay-cables: one classical configuration, corresponding to attaching the active stay-cables between the top of the pylons and the deck (configuration I) and, another configuration, consisting of attaching the stay-cables between the base of the pylons and the catenary (configuration II). The analysis confirmed that both configurations are effective with a slight superiority of the second configuration. The study is conducted numerically and experimentally on a suspension bridge mock-up, by considering two types of active stay-cables. The experimental results confirmed the numerical predictions, and demonstrated the effectiveness of the second configuration.

Keywords

Acknowledgement

Supported by : China Scholarship Council (CSC)

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