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US 3,986,367 AGranted
Earthquake-resistant anchoring system
OwnerAlexandrs K. Kalpinsinventor
Life of this patent
Estimating the term…
Abstract
A structural body such as a nuclear power plant, or the like, can be anchored in an earthquake-resistant manner by supporting the structural body onto a support means so that relative horizontal movement between the body and the support means can take place in all directions. Frictional force generated between the structural body and the support means is less than the force required to move the structural body together with the support means when the latter is subjected to a force having a horizontal component.
Claims11
An earthquake-resistant anchoring system which comprises
- a structural body having a base;
- support means abutting said base and restraining vertical movement of said structural body in response to gravitational force but permitting relative movement between said structural body and said support means in all horizontal directions, said base and said support means having contiguous surfaces movable relative to one another which surfaces, upon application to the support means of a force having a horizontal component, generate a frictional force having a magnitude which is less than the magnitude necessary to move said structural body together with said support means;
- earth-connected fixed foundation means surrounding said structural body in a spaced relationship therefrom;
- rigid hanging element means in a spaced relationship from said structural body;
- flexible elongated connector means joining said structural body with said rigid hanging element means and permitting substantially independent relative motion between said structural body and said hanging element means;
- and
- anchoring means peripherally connecting said hanging element means to said fixed foundation means;
- said flexible elongated connector means being adatped to oppose horizontal movement of said structural body when said connector means are flexed.
5 more elements
Dependencies are inferred from the claim text.