Seismic isolating bearing

Details Seismic isolating bearing Seismic isolating bearing

1991-10-04

1993-04-13

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

52167EA, 248634, E04B 198

Patent

active

052011550

ABSTRACT:
A seismic isolating bearing for supporting a building on a foundation includes a laminated body adapted to be interposed vertically between the upper and lower structures. The laminated body comprises alternately arranged viscoelastic layers and stiffener plates, having a hole defined vertically therein, and an energy absorber assembly disposed in the hole, for absorbing energy applied thereto. The energy absorber assembly comprises a lead block inserted in the hole, with the lead block having an intermediate portion held against an inner circumferential surface of the hole. The energy absorber assembly also has a viscoelastic cylindrical body disposed between an outer circumferential surface of at least one of upper and lower end portions of the lead block and the inner circumferential surface of the hole.

REFERENCES:
patent: 4117637 (1978-10-01), Robinson
patent: 4499694 (1985-02-01), Buckle et al.
patent: 4593502 (1986-06-01), Buckle
patent: 4599834 (1986-07-01), Fujimoto et al.
patent: 4633628 (1987-01-01), Mostaghel

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