ABSTRACT
The cable-stayed Øresund Bridge, linking Denmark and Sweden, was one of the first bridges with mechanical dampers applied on surface modified (helical fillets) cables. Nevertheless, vibrations of the cables have been observed since its opening in 2000. More recently,Acampora & Georgakis (2011) reported moderate vibration incidences in both dry and wet conditions and for a narrow range of cable-wind angles, leading to negative aerodynamic damping. To further investigate the aerodynamics of the Øresund Bridge twin cables during rain events, a series of passivedynamic wind tunnel tests has been undertaken in wet conditions on a scaled model of the twin stays.
