Large-scale high strength seismic isolator

Details Large-scale high strength seismic isolator Large-scale high strength seismic isolator

1997-12-05

1999-10-26

Kent, Christopher T.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

521678, 521671, 521674, E02D 2734, E04B 198, E04H 902

Patent

active

059706660

ABSTRACT:
A seismic isolator includes a lower guide rail 4 having grooves on the side surfaces thereof and fitted to an upper surface of a lower plate 1, an upper guide rail 6 having grooves on the side surfaces thereof and fitted to a lower surface of an upper plate in a direction criss-crossing the lower guide rail 4, a block body 9 clamping at its lower part the lower guide rail 4 and clamping at its upper part the upper guide rail 6, a large number of rollers interposed between the lower guide rail 4 and the block body 9 and between the upper guide rail 6 and the block body 9, a large number of balls interposed between grooves of the side surfaces of the lower guide rail 4 and the block body 9 and between grooves of the side surfaces of the upper guide rail 6 and the block body 9 and a flexible member 22 fitted between the lower surface of the upper plate and the upper surface of the lower plate 1.

REFERENCES:
patent: 3730463 (1973-05-01), Richard
patent: 4330103 (1982-05-01), Thuries et al.
patent: 4599834 (1986-07-01), Fujimoto et al.
patent: 4662133 (1987-05-01), Kondo
patent: 4917211 (1990-04-01), Yamada et al.
patent: 5761856 (1998-06-01), Kishizono et al.
patent: 5816559 (1998-10-01), Fujimoto

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