SU765461A1 - Earthquake-proof foundation of building or structure - Google Patents

Description

(54) ANTISEISMIC FOUNDATION OF BUILDING, CONSTRUCTIONS

one

The invention relates to the field of construction, in particular to the structures of anti-seismic foundations of buildings and structures.

The anti-seismic foundation of the building, the structure, including the upper and lower supporting structures, located at a distance from each other and located in a row of rigid vertical rods, harmoniously connected with the upper and lower supporting structures themselves, is known.

However, such a foundation is unreliable in operation at high seismic effects (shocks).

The closest to the proposed technical essence and the achieved result is the anti-seismic foundation of the building, the structures including the upper and lower supporting surfaces, located at a distance of ot each other, and vertical rods arranged in rows, the upper and lower ends of each of which are attached respectively to the upper and lower pivot on itself 2.

The disadvantage of this foundation is the high horizontal component of the seismic load, which transmits to the building or structure.

The purpose of the invention is to reduce the horizontal component of the seismic load on a building to a minimum value.

 This is achieved by the fact that the well-known antiseismic foundation of the building, structures, including the upper and lower supporting structures, | are not spaced apart from each other, and vertical rods arranged in rows, the upper and lower ends of each of which are attached respectively to the upper and lower supporting structures. itself, is equipped with a device for alternately shortening and extending the rods and a device for stabilizing the horizontal position of the superfundamental part of the building, a structure, and each vertical rod is made with screw thread at the upper end of n is equipped with a shoe with a ball joint at the lower end. With

Claims (2)

2Q, this device for alternately shortening and extending the rods is made in the form of horizontally driven and telescopic levers, with the rods placed between adjacent rows of vertical rods, and the telescopic levers at one end rigidly attached to the vertical rods, and the other - pivotally attached to t ham. A device for stabilizing the horizontal position above: the foundation part of the building, the construction of the voyage, polyeno in the form of a horizontal platform, Supported by the upper support section with a ball joint located above the center of gravity of the foundation foundation, the construction and the jacks located along the perimeter of the upper support plate . : FIG. The proposed foundation is shown, a general view; in fig. 2 - section A-A ya of FIG. 1.: The anti-seismic foundation contains the lower support plate 1, the load on the building from, building 2 is transmitted through the horizontal platform 3, the upper support plate 4 and then through the vertical supporting rods 5. The lower ends of the rods 5 are equipped with hinges with shafjOBbiMH 6, and the upper The ends have a screw thread and are screwed loosely into the sleeve 7, rigidly embedded in the upper support plate 4. The rods 5 are connected via cables 8 to the drive 9 (conventionally shown as a point) fixed on the support plate 4 and provide a reciprocating The compulsory movement of tg 8 and rotation of the rods 5 with the help of the telescolic levers 10. The horizontal plate form 3 is supported on the upper supporting plate 4 through the ball joint I, placed LYNY over the center of gravity of the under foundry part of the building, structures and power devices (for example jacks) 12. The foundation works as follows. In the case of mobile soils, the drive 9 is automatically activated, which through the rods 8 and the arms 10 pivotally connected to them, rigidly attached to the rods 5, causes oscillating rotations of these rods, providing a variable contact of the rows of rods with the lower support plate 1. The seismic shift of the base plate 1 causes the rods 5, which are currently in contact with the base plate 1, to bend, however, the next row of rods 5 come into contact with the plate 1, and the bending of the previously loaded rods 5 is removed without The equipment is supplied to the upper support plate 4. In order to stabilize the horizontal position of the underfound part of the building, the structures include power devices 12, which can be included in the automatic control system. The possible vibration of the rods 5 is eliminated by the fact that the rods 5 are hollow, with the cavity filled with a VISCO material, for example, treated transformer oil. In order to preserve the building from compaction, an elastic layer 13 may be arranged during the operation of the device, made, for example, of hard rubber. Other options are possible for alternately shortening and extending the rods 5, for example, based on pneumatic or electric devices. The use of the foundation significantly reduces the magnitude of the horizontal component of the seismic load and other frontal loads on buildings and structures. Claims I. The anti-seismic foundation of the building, the structures including the upper and lower supporting structures, are located at a distance from each other, and vertical rods arranged in rows, the upper and lower ends of each of which are attached to the upper and lower supporting elements , characterized in that, in order to reduce the horizontal component of the seismic load on the building, the structure, the foundation is provided with a device for alternately shortening and extending the rods and a device for stabilizing uu horizontal position nadfundamentnoy parts of buildings, and each vertical rod is x: screwthreaded verhnel at the end and is provided with a ball scharnirom shoe at the lower end. 2. The foundation according to claim 1, characterized in that the device for alternately shortening and extending the rods is made in a w-1de horizontally arranged driving gear and telescopic levers, with the rods placed between adjacent rows of vertical rods, and telescopic levers at one end they are rigidly attached to vertical rods, and the other is a ball (irregularly attached to tam. 3. The foundation of claim 1, characterized in that the device for stabilizing the horizontal position of the basement part of the building, It is made in the form of a horizontal platform supported on the upper bearing on with by means of a ball inapHHpa located under the center of gravity of the foundation building, building, to jacks located along the perimeter of the upper support plate. Sources of information taken into account during the examination 1. Author Certificate of the USSR No. 554386, CL EC P27 / 34, 1972.. 2. USSR author's certificate No. 242754, cl. E 02 D 27/34, 1967.