Moderate vibrations continue to be recorded on the Øresund Bridge twin-stay cables. System identification techniques have been applied to investigate the aerodynamic characteristics of the cables based on ambient vibration measurements. As might be expected, the measured aerodynamic damping ratios vary from those estimated through use of aerodynamic coefficients of single circular cylinders, as reported in literature. To address this issue, wind tunnel tests were performed on a 1:2.3 scale section model of the Øresund Bridge cables, with and without the presence of helical fillets. In this paper, the results of those tests are presented for varying wind angles of attack.
Proceedings - European and African Conference on Wind Engineering, 2013
Main Research Area:
6th European and African Conference on Wind Engineering, 2013
International Association for Wind Engineering (IAWE)