Real-Time Hybrid Seismic Experimental System Using Multiple-Axis Shaking Device

摘要

A real-time hybrid seismic experimental system is a new system in which an actuator-excited experiment and a response analysis using a computer are combined on-line and conducted simultaneously in real time. Until now, this type of system usually used a single actuator as a shaking device. Therefore these systems can be applied only when motion of the structure under excitation is one-dimensional. However, the shaking device which can produce more complicated motions is preferable to enhance the systems because the structures of interest sometimes show motions in more than one dimension. For this purpose, we developed a system using a three-degree-of-freedom in-plane shaking device. The features of this system as well as the results of verification experiments are shown and discussed.