Cyclic shear energy absorber

Details Cyclic shear energy absorber Cyclic shear energy absorber

1983-06-16

1985-02-19

Friedman, Carl D.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

52573, E04B 198

Patent

active

044996942

ABSTRACT:
A cyclic shear energy absorber for absorbing energy due to induced motion between two members by plastic cyclical deformation of a central energy absorber core. The core is surrounded by a restraining device having movable inner walls, preferably in the form of a deformable cylinder wound from a strip of material having a rectangular cross section. The restraining element is confined in a cylindrical aperture formed in a resilient support having alternately arranged resilient layers and stiffener layers. The absorber is confined between two end plates capable of being coupled to associated structural members, such as a bridge support column and a base.

REFERENCES:
patent: 3544415 (1970-12-01), Price et al.
patent: 3924907 (1975-12-01), Czernik et al.
patent: 4117637 (1978-10-01), Robinson
patent: 4121393 (1978-10-01), Renault et al.

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