| 摘要 |
PROBLEM TO BE SOLVED: To provide a viscous body damper for a base isolation structure having flexibility in the horizontal two-dimensional direction and the three-dimensional direction including vertical direction and effectively functioning. SOLUTION: This viscous damper for the base isolation structure is constituted by the combination of a resistance plate member having a plurality of first resistance plates downward, a first viscous body container having a plurality of first fixing plates assembled in parallel between the respective first resistance plates and storing a viscous body, a plurality of second resistance plates arranged downward the first viscous body container along the direction perpendicular to the first resistance plate, and a second viscous body container having a plurality of second fixing plates assembled in parallel between the respective second resistance plates 3 and storing the viscous body. The second viscous body container is fixed on a lower structure surface forming a base isolation layer of the base isolation structure, the resistance plate member is fixed under the upper structure surface, the relative movement of the resistance plate member and the first viscous body container to the direction perpendicular to the plate surface of the first resistance plate is restrained, and the relative movement of the first viscous body container and the second viscous body container to the direction perpendicular to the plate surface of the second resistance plate is mutually restrained. COPYRIGHT: (C)2006,JPO&NCIPI
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