Seismic isolator

Details Seismic isolator Seismic isolator

1989-12-28

1990-09-04

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Mechanical vibration attenuator

181208, 248638, 52167R, 267136, F16M 100

Patent

active

049536583

ABSTRACT:
A seismic isolator for absorbing earthquake vibrations is provided which comprises a laminated member arranged to be interposed between a structure and a foundation, the laminated member comprising thin steel sheets having concavities and convexities extending in a single direction, flexible sheets stacked alternately with the steel sheets, and upper and lower end plates, all these sheets and plates being unitarily and fixedly bonded together. The upper and lower end plates are fixed to the structure and the foundation, respectively, in such a manner that the concavities and convexities extend in a direction in which earthquake vibrations are to be isolated from the structure. The seismic isolator of the present invention is particularly suitable for use with a bridge.

REFERENCES:
patent: 4121393 (1978-10-01), Renault et al.
patent: 4533109 (1985-08-01), Delar
patent: 4587779 (1986-05-01), Staudocher
patent: 4713917 (1987-12-01), Buckle et al.
patent: 4883250 (1989-12-01), Yano et al.

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