Abstract
This paper deals with two kinds of special spacers with damping device (TYPE-S, TYPE-M) for suppressing wake galloping in tandem cables of cable-stayed bridges. It was ascertained that the structural damping characteristics with these types of dampers for the out of phase cables would be very dependent on the torsional rigidity of the cable. Effectiveness of TYPE-S and TYPE-M were also compared with respect to diameter of the cables. From these results, some useful informations are obtained for the vibration control of wake galloping by the installation of special spacers with damping device.
