SU897961A1 - Foundation part of earthquake-proof building or structure - Google Patents

Description

I

The invention relates to the construction, in particular to the structures of supporting parts for earthquake-resistant buildings and structures.

The known supporting part of a seismic resistant building, a structure comprising a lower and upper supporting elements and mobile communication elements arranged between them, made in the form of ellipsoids of rotation from a solid material 1.

A disadvantage of the known support part is the difficulty in manufacturing and installation.

The closest to the invention in technical essence and the achieved result is the supporting part of the earthquake-resistant building, the structure including the lower and upper supporting elements, between which the antifriction gasket 2 is placed.

However, this support part has insufficient antiseismic properties, buildings, structures, since the issues of returning the building to its original position and accelerating the damping of vibrations are not solved.

The purpose of the invention is to accelerate the damping of the oscillation energy and return the building to its original position on the foundation.

The goal is achieved by the fact that in the supporting part of the earthquake-resistant building, the structure, including the lower and upper supporting elements, between which are placed antifriction gasket, facing each other surfaces of the supporting elements

15 are pyramid-shaped, with the depressions and the protrusions of the lower support element repeating the shape of the projections and the depressions of the upper support element, respectively, and are arranged therein.

20

Claims (2)

FIG. 1 depicts a Macffb reference, the Vidy positions in FIG. 2 shows section A-A in FIG. one; in fig. 3 - fragment of the supporting part, on an enlarged scale; 389 FIG. 4 — LOWER supporting element, in plan; in fig. 5 a section bb in fig, k in fig. 6 - the upper reference element, in plan, in FIG. 7 shows a section B-B in FIG. 6, in FIG. 8 is a variant of a fragment of the supporting part. The supporting part of the earthquake-resistant building includes a lower supporting element, 1, an upper supporting element 2 and anti-friction gaskets 3 and 4, for example, from fluoroplastic. The adjoining surfaces of the supporting elements 1 and 2 are pyramid-shaped. The lower support element 1 is mounted on the foundation block 5 and fixed on it with anchor bolts 6. On the upper support element 2, for example, a reinforced concrete pad 7 is installed on which building 8 is supported. On walls 9 stack 10 of the foundation block 5 and on the edge ; reinforced concrete cushion 7 is placed on the foundation plates 11. Between them and the building 8, a compensator 1 of elastic material is arranged, which ensures the protection of anti-friction gaskets. The support part works as follows. Under seismic impact, the foundation block 5 of building 8 moves in a horizontal direction. In this case, there is a mutual shift of the supporting elements 1 and 2. The vertical force from the weight of the building 8, acting on the supporting elements after their relative shift, is decomposed into two components, one of which is perpendicular and the other parallel to the slip plane. The first one creates force by friction, and the second returns building 8 to its original position. In this connection, the inclination of the glide planes of the faces of the pyramids is chosen from the condition that the return force acting on the faces of the pyramids exceeds the strength of the friction. The use of the support part allows to increase the anti-seismic properties of the building, the structure and ensures its return to the original position after the seismic action. The invention The supporting part of an earthquake-resistant building, a structure comprising a lower and upper support elements, between which an anti-imbalance pad is placed, characterized in that, in order to accelerate the attenuation of the oscillation energy and return the Building, the structures in their original position on the foundation are facing each other. friend surfaces of the supporting elements are made with depressions and protrusions having the shape of pyramids, and the depressions and protrusions of the lower support element repeat the shape of the protrusions and depressions of the upper the support member and arranged therein. Sources of information taken into account in the examination 1. USSR author's certificate number, cl. E Qi H 9/02, 1970. 2. Author's certificate "USSR number 80796, cl. E 01 O 19 / 0t, 1972.