| 摘要 |
PROBLEM TO BE SOLVED: To increase the strength of an earthquake isolation structure against tensile forces. SOLUTION: An earthquake isolation structure 1, having laminated rubber 4 formed by bonding a plurality of rigid hard plates 2 and a plurality of viscoelastic plates 3 alternately together, employs constitution in which a part X where the soft plates 3 and the hard plates 2 do not adhere to each other is present in the center except for the outer periphery of the laminated rubber 4 and/or constitution in which a discontinuous part to which materials constituting the soft plate are not chemically coupled is present within the soft plate 3. |
