Anti-seismic system

Details Anti-seismic system Anti-seismic system

2007-07-17

2007-07-17

Friedman, Cari D. (Department: 3635)

Static structures (e.g., buildings)

Means compensating earth-transmitted force

C052S167800, C052S167600, C052S167400

Reexamination Certificate

active

09861632

ABSTRACT:
The present invention provides a system and method for protecting buildings from damage due to seismic waves. The system comprises a bed of sand contained between two layers of polymer membrane, upon this sand bed a rests a first concrete slab, this first concrete slab supports, through a plurality of coil springs and shock absorbers, a second concrete slab. The structure to be protected is attached to the upward facing surface of the second concrete slab. In the event of an earthquake, the sand bed acts to slow the propagation of seismic waves, while the plurality of springs and shock absorbers isolates the structure from ground movements caused by the waves.

REFERENCES:
patent: 3748800 (1973-07-01), Glicksberg
patent: 4554767 (1985-11-01), Ikonomou
patent: 6224743 (2001-05-01), Satyanarayana
patent: 6790294 (2004-09-01), Ishida et al.

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