The Basis Of The Isolated Structure Energy And Mr Intelligent Isolation Structure, Process Analysis

This paper concerns the seismic energy of base isolation and the seismic response of MR damper base isolation. The hysteretic differential Bouc-Wen model is adopted in order to take into account the non-linear behaviour of the base isolation, the superstructure is equivalent linear model. After the non-linear response of building can be calculated in the seismic, the energy analysis is carried out by energy equation. The result of the research show that the base isolation protect the structure by reducing the seismic input energy and increasing isolation hysteretic energy. The isolation system isn't always effective during a wide range of seismic events, so, MR damper is installed on the base isolation. MR dampers can provide controllable damping force. The control forces in the MR dampers are calculated at every time step by the optimal control theory, the semi-active strategy is proposed. Two numerical simulate smart isolation examples is shown to achieve notable decreases in base drifts and a little increases in superstructure acceleration in contrast to the passive system. It shows the effectiveness of smart isolation system.