Foundation construction system with anti-earthquake plates

E - Fixed Constructions – 02 – D

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E02D 31/08 (2006.01) E02D 27/34 (2006.01) E04H 9/02 (2006.01)

Patent

CA 2436257

The invention aims at isolating the foundations and the remaining part of the building from the earthquake. The antiseismic plates ( 2) are hermetic containers divided into two parts. Vacuum has been produced in part "B" so that most of the longitudinal or primary seismic waves propagating through the solids and fluids are cancelled. A pressurized liquid has been introduced into part "A" to cancel the transversal or secondary waves that propagate through the solids. "F1" is the lateral force of the surface seismic wave acting upon the plate and producing a pressure on the liquid pressing against the base (1) with nil results. "F4" is the decompensation of the faces pressing against the ground. The invention can be used in all types of foundations and large surfaces to preserve infrastructures, etc. It can alternatively be used for conical bases, buried walls, beam supports, etc.

La présente invention concerne un système de construction de fondations utilisant des plaques antisismiques. Ce système à pour but d'isoler les fondations et le reste d'une construction lors d'un séisme. Les plaques antisismiques (2) (page 1/1 - figure 2) sont constituées de récipients hermétiques divisés en deux parties. Dans la partie </= B >/= , on a fait le vide pour que les ondes sismiques longitudinales ou primaires qui se propagent par les solides et les liquides soient sensiblement annulées. Dans la partie </= A >/= , on a introduit un liquide sous pression pour annuler la ligne de force des ondes transversales ou secondaires qui se propagent par les solides. Dans la figure 3, </= F3 >/= représente la force latérale de l'onde sismique superficielle qui agit sur la plaque, exerçant une pression sur le liquide qui comprime le socle (1) avec une force résultante nulle. Dans ce système, </= F4 >/= représenterait la décompensation des faces des plaques qui exerce une pression sur le terrain. Ce système s'applique à tous les types de fondations, aux grandes surfaces pour préserver les infrastructures, etc. Ce système s'applique également aux socles coniques, aux murs enterrés, aux appuis de poutres, etc.

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