抄録
The first part of this paper deals with the dynamic characteristics of an MR damper and its analytical model. It is confirmed that the model simulates the experimental results by taking into consideration the second delay of the resistance to the control signal. Based on these results, the MR damper is installed in a seismically isolated structural model, and the usefulness of a hybrid semi-active control is verified by means of a series of shaking table tests. In this study, the term hybrid semi-active control means that both displacement and velocity dependent resistance are realized in the same damper.
