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.
Key Words
suspension bridge; active control; collocated control; integral force feedback
Address
Zhui Tian — Active Structures Laboratory, Université Libre de Bruxelles (ULB) 50, Av. F. D. Roosevelt (CP 165/42), Brussels, Belgium State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi\'an Jiaotong University, Xi\'an 710049, China
Bilal Mokrani, David Alaluf, Jun Jiang and André Preumont — Active Structures Laboratory, Université Libre de Bruxelles (ULB) 50, Av. F. D. Roosevelt (CP 165/42), Brussels, Belgium
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