Device for protecting a structure against the effects of high ho

Details Device for protecting a structure against the effects of high ho Device for protecting a structure against the effects of high ho

1976-06-18

1978-10-24

Purser, Ernest R.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

14 165, 428674, E04H 902

Patent

active

041213939

ABSTRACT:
The device for protecting a structure against the effects of dynamic stresses and especially stresses produced by earthquakes comprises a system of friction supports constituted by seating blocks associated respectively with the structure and with the foundation floor. The blocks are applied against each other and capable of relative displacement in frictional contact. The coefficients of static and dynamic friction of the contact surfaces range from a minimum value of approximately 0.08 to a maximum value of approximately 0.5.

REFERENCES:
patent: 2055000 (1936-09-01), Bacigalupo
patent: 2690074 (1954-09-01), Jones
patent: 2950576 (1960-08-01), Rubenstein
patent: 3105252 (1963-10-01), Milk
patent: 3233376 (1966-02-01), Naillon
patent: 3349418 (1967-10-01), Hein
patent: 3638377 (1972-02-01), Caspe
patent: 3716348 (1973-02-01), Perkins
patent: 3736712 (1963-06-01), Muto
Physics by Semat & Kravitz, .COPYRGT.1958, p. 50.

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