Abstract
A seismic-response-controlled structure was realized in Tokyo in August, 1989 for the first time in the world. Because this structure is a very slender ten-story office building, the Active Mass Driver (AMD) system has been installed to actively suppress vibrations caused by medium earthquakes and frequent winds. By June, 1990, the building had experienced about ten earthquakes, during which measurements were taken of the response of the structure and the control system. These measurements are simulated by a numerical analysis to represent the interaction between the structure and the control system. By comparing the uncontrolled responses calculated without the AMD System, the effectiveness of the AMD system is assessed.
