SEISMIC ISOLATION DEVICE HAVING INDUCTIVE OR ELECTRIC FIELD LAYER

摘要

A seismic isolation device device having a magnetic field generating layer or an electric field generating layer is provided to allow a worker to harden a magnetic rheological elastomer layer and to change rigidity of the magnetic rheological elastomer layer as much as they need. A seismic isolation device comprises an upper plate, a lower plate, and a pad. The pad has a magnetic rheological elastomer layer(41), and a magnetic field generating layer or an electric field generating layer(43). The magnetic rheological elastomer layer is hardened by magnetic field or electric field. The magnetic rheological elastomer layer is made of a deformable material. The magnetic field generating layer and the electric field generating layer generating induction magnetic field and electric field are stacked alternatively on the magnetic rheological elastomer layer.