In recent years, coupled damping structures have been attracting attention as a method of vibration control for high-rise structures, in which multiple structures are connected to each other. Because this structural system utilizes the relative motion caused by the difference in sway between the structures, it is necessary that the structures to be connected have different natural frequencies. In this study, we propose a new system that can be applied to structures with equal or close natural frequencies by combining a dynamic vibration absorber and a coupled damping structure: an active dynamic vibration absorber is installed in one of the two buildings, and a damper is installed between the two buildings to change the dynamic characteristics of both buildings. In this paper, the acceleration RMS and absolute displacement are compared with those of a conventional passive dynamic vibration absorber through time history response analysis. As a result, it was confirmed that the coupling reduced the response of one of the structures, while the response of the other increased due to the one-sided effect.
NAKAO et al. (Wed,) studied this question.