Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Relative motion means between a structure and its foundation
Patent
1990-07-31
1993-02-02
Chilcot, Jr., Richard E.
Static structures (e.g., buildings)
Means compensating earth-transmitted force
Relative motion means between a structure and its foundation
52573, E04B 198
Patent
active
051828880
ABSTRACT:
An earthquake-proofing device of peripherally restrained type including a laminate constructed by alternately laminating rigid plates and rubber-like elastic plates, the laminate being formed with a cylindrical hollow portion which opens at its opposite ends as viewed in the direction of lamination, and a visco-elastic body to be inserted into the cylindrical hollow portion to fill the latter. The earthquake-proofing device is characterized in that the volume of the visco-elastic body is greater than that of the cylindrical hollow portion by an amount corresponding to the product of the portion of the inner surface area of the cylindrical hollow portion opposed to the rubber-like elastic plates and 5-60% of the thickness of a single rubber-like elastic plate. The visco-elastic body having such excessive volume is pressed into the cylindrical hollow portion.
REFERENCES:
patent: 4499694 (1985-02-01), Buckle et al.
patent: 4593502 (1986-06-01), Buckle
patent: 4633628 (1987-01-01), Mostaghel
patent: 4713917 (1987-12-01), Buckle et al.
patent: 4899323 (1990-06-01), Fukahori et al.
Fujisawa Kazuhiro
Kato Seinosuke
Miyamoto Yoshiaki
Sasaki Teruo
Chilcot Jr. Richard E.
Sumitomo Gomu Kogyo Kabushiki Kaisha
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