Abstract: A seismic base isolation support apparatus 1 comprising: a laminated body 4 having elastic layers 2 and rigid layers 3 which are alternately laminated; a lead plug 7 which is disposed in a hollow portion 6 of the laminated body 4; and a thermal conductor 9 which is disposed between an outer peripheral surface 8 of the lead plug 7 and an inner peripheral surface 5.

Abstract: A seismic base isolation support apparatus 1 includes: a laminated body 4 in which elastic layers 2 and rigid layers 3 are alternately laminated; a circularly columnar body 7 which is disposed in a hollow portion 6 of the laminated body 4; an outer peripheral protective layer 9 covering an outer peripheral surface 8 of the laminated body 4; an upper mounting plate 11 and a lower mounting plate 12 which are respectively connected to an uppermost rigid layer 3 of the rigid layers 3 and a lowermost rigid layer 3 of the rigid layers 3 by means of bolts 10; a shear key 15 which is fittingly secured in a recess 13 of the uppermost rigid layer 3 and a recess 14 of the upper mounting plate 11; and a shear key 18 which is fittingly secured in a recess 16 of the lowermost rigid layer 3 and a recess 17 of the lower mounting plate 12.

Abstract: A vibration isolation apparatus 1 includes: a laminated elastic body 8 in which elastic layers 3 and rigid layers 7 are alternately laminated and a circularly columnar body 14 which is constituted by damping bodies 12 press-fitted in a circularly columnar hollow portion 11 of the laminated elastic body 8, wherein each of the damping bodies 12 contains a thermally conductive filler, a graphite, and a thermosetting resin.

Abstract: A vibration isolation apparatus 1 includes: an annular laminated elastic body 6 in which elastic material layers formed of elastic plates 2 and rigid material layers formed of a plurality of annular thin-walled rigid steel plates 3 and a pair of annular thick-walled rigid steel plates 4 and 5 are alternately laminated; a cylindrical plug 9 formed of a vibration damping material and disposed densely in a cylindrical hollow portion 8 defined by at least an inner peripheral surface 7 of the laminated elastic body 6; upper and lower flange plates 12 and 11 respectively connected to the thick-walled rigid steel plates 4 and 5 by bolts 10; and a pair of annular shear keys 13 for each fixing each of the upper and lower flange plates 12 and 11 and a corresponding one of the thick-walled rigid steel plates 4 and 5 to each other at each of a lower surface and an upper surface of the cylindrical plug 9.