Shockproof seismic device

 

The invention relates to a device that absorbs the horizontal and vertical waves and torsional forces during earthquakes. The present invention is to increase the reliability of protection of buildings and structures against seismic effects with different distribution patterns of oscillations, reducing the cost of construction earthquake-resistant buildings and structures and the availability of technical solutions in bulk, including housing construction. This task is solved in that in shockproof seismic device containing a cylinder attached to the lower supporting flange, the piston, the upper support flange and damping elements to the upper support flange attached to the cylinder kinematically associated with the lower bearing flange and having a diameter larger than the diameter of the lower cylinder. The piston has an upper and a lower plug, while the upper cover is located below the upper edge of the piston and contains steel balls in contact with the upper support flange. Damping elements in the form of springs installed between the bottom cap of the piston and the lower support flange. The space between the balls is filled with synthetic material, for example, panopa the technical vaseline. 1 S. and 2 C.p. f-crystals, 2 Il.

The invention relates to a device that absorbs the horizontal and vertical waves and torsional forces during earthquakes, and can be applied in seismologically buildings and structures, in particular of storage tanks, process piping, supports, bridges, overpasses.

Known antiseismic supporting device comprising placed between the Foundation and advancement design elastic element, the upper and lower bearing plates, limiting the horizontal movement and friction material (USSR author's certificate No. 1604937, IPC E 02 D 27/34, 1989).

It is also known shockproof seismic device, including installed between the Foundation and object cylinder with upper and lower flanges (application Germany No. 1634364, IPC E 02 D 27/3, 1972).

The main disadvantage of the known devices is the inefficiency of reducing seismic loads.

The closest analogue is shockproof seismic device containing attached to the lower supporting flange cylinder placed in it a piston, the upper support flange, the intermediate flange, which is simultaneously the upper flange of the cylinder, the mouth of the torus has a ball head, and the top bearing flange is made with a spherical recess under it (patent RF № 2078871, IPC E 02 D 27/34, 1995).

The disadvantage of this device is ineffective to protect facilities against seismic effects. The device does not allow sufficiently to dampen vertical oscillations due to the hard nature of the relationship piles or Foundation with the bearing structure of a building or structure, and horizontal vibrations and the force of torsion due to the fact that the spherical surface of the compensator and support flange have a greater resistance to shear.

In addition, the device has a complex structure and requires considerable costs for its production.

The present invention is to remedy these disadvantages, namely improving the reliability of protection of buildings and structures against seismic effects with different distribution patterns of vibrations. Other objectives of the invention are the reduction of costs for the construction of earthquake-resistant buildings and structures, the availability of technical solutions in bulk, including housing construction.

This task is solved in that in shockproof seismic device containing a cylinder attached to the bottom of the captivity of the cylinder, kinematically associated with the lower bearing flange and having a diameter larger than the diameter of the lower cylinder, the piston has an upper and a lower plug, while the upper cover is located below the upper edge of the piston, and contains steel balls in contact with the upper support flange, and damping elements in the form of springs installed between the bottom cap of the piston and the lower support flange.

The space between the balls is filled with synthetic material, for example polyurethane foam. The space between the springs filled synthetic material, for example polyurethane foam or technical vaseline.

The technical result is that the device has a relatively large freedom of movement in both longitudinal and transverse directions and the possibility of torsion.

Reduction of construction costs and the availability of the proposed use of the device in mass construction is provided by the simplicity of the elements of the device, using nidificate materials, re-use of components and structures (for example, used wagon springs as the springs, tires as a ring of elastic elements, etc..2 - the same option with the damping ring.

The device comprises a cylinder 1, attached to a supporting flange 2. The cylinder has a piston 3 having a bottom 4 and top 5 plugs of thick sheet steel. Inside the piston 3 is reinforced by the ribs 6 of the steel plates. The upper cover 5 is located in the cavity of the piston 3 below its upper edge, and the perimeter and in the center of the stub 5 posted by steel balls 7. The depth of the location of the stub 5 relative to the top edge of the piston 3 is, for example, 3/4 of the diameter of the balls 7. The space between the balls 7 are filled with polyurethane foam to the edges of the Board. Between the bottom cover 4 of the piston 3 and the supporting flange 2 springs installed 8 (usually in the amount of 3-4), lubricated with graphite paste, and the space between them is filled with synthetic material, for example polyurethane foam or dense non-freezing lubricant (vaseline). On balls 7 has a bearing flange 9 to which is attached a cylinder 10 having a diameter, the larger diameter cylinder 1.

The device may contain additional damping elements, for example, on the outside of the cylinder 1 at its base flange 2 can be accommodated installed in a vertical row annular elastic elements 11, the outer diameter is but be filled with polyurethane foam. Instead of the annular elastic elements 11 you can use the damping ring 12, which is installed inside the upper cylinder 10 with a gap between the inner diameter of the ring 12 and the outer diameter of the piston 3 is not less than the possible mixing of the piston under seismic excitation (Fig.2).

To connect devices in a single structure, the cylinder 10 is kinematically connected with the supporting flange 2 by means of steel rods 13 having a hinged connection with the cylinder 10 through the gussets 14 and a tension spring device 15 on the supporting flange 2. On the supporting flange 9 is booster cushion 16 of the supporting structure 17. The mounting flange 2 is welded to the fixed element 18 piles or Foundation 19.

The device operates as follows.

A powerful impetus when the earthquake is transmitted through the pile or Foundation 19 object shockproof device, causing the piston 3 will compress the spring 8, the vertical damping of the shock wave. Part of this load will accept the material filling the space between the springs 8. Horizontal seismic waves and torsional forces in the design will be absorbed by the rolling balls 7 on the surface of the support flange 9 with simultaneous amortizes the case of installation of the annular elastic elements 11 with the material, fill them with the cavity, and the horizontal wave - lateral surface of the annular elastic elements 11 or damping ring 12.

Claims

1. Shockproof seismic device containing a cylinder attached to the lower supporting flange, the piston, the upper support flange and damping elements, wherein the upper support flange attached to the cylinder kinematically associated with the lower bearing flange and having a diameter larger than the diameter of the lower cylinder, the piston has an upper and a lower plug, while the upper cover is located below the upper edge of the piston and contains steel balls in contact with the upper support flange, and damping elements in the form of springs installed between the bottom cap of the piston and the lower support flange.

2. Shockproof seismic device under item 1, characterized in that the space between the balls is filled with synthetic material, for example polyurethane foam.

3. Shockproof seismic device under item 1, characterized in that the space between the springs filled synthetic material, for example polyurethane foam or technical vaseline.

 

Same patents:

The invention relates to structures for special purposes and can be used to determine the lifetime of already constructed objects, including

The invention relates to the construction and may find wide application in the construction of tall buildings and structures in seismic hazardous areas, and in areas exposed to strong winds

The invention relates to the construction and can be used in frame-framed earthquake resistant buildings and structures

The invention relates to construction and is intended for buildings constructed in seismically dangerous areas, or structures having special purpose

The invention relates to the field of construction, particularly the construction of earthquake resistant buildings

The invention relates to the field of Foundation, in particular the construction of foundations of buildings, structures, constructed in terms of seismic effects

The invention relates to the field of construction and can be used in the construction of buildings and structures in earthquake-prone areas

Foundation // 2167978
The invention relates to the field of construction, namely to ensure seismic stability of building foundations, created in soft soils

The invention relates to the construction, and in particular to systems for seismic and vibration protection of buildings and structures

The invention relates to the field of construction, namely, the main elements of the building that provide earthquake resistance of the building

The invention relates to the construction, namely, devices for protection of pipelines located on landslide slopes

The invention relates to the field of construction, namely, the laying of technological pipelines for landslide areas

The invention relates to the field of construction, namely, devices for protection of underground structures, such as pipelines

The invention relates to the field of construction, namely, the protection of pipelines from landslides

The invention relates to the field of construction, namely, the installation of protective structures to protect the piping from pressure landslide soil

The invention relates to the construction, namely, devices for protection of pipelines located on landslide slopes
The invention relates to the field of protection of the soil mass of the earth's crust in seismically dangerous areas, and in particular to methods of influence on the stress state in the earth's crust, preventing earthquake or diminishing because of their catastrophic impact

The invention relates to the construction, namely the protection of engineering structures built on the slopes in permafrost areas, from deformations caused krisallen offset dispersed rocks

The invention relates to the construction, in particular to ensure sustainability of buildings and structures under earthquake

The invention relates to protective structures from landslides

FIELD: building, particularly underground structures.

SUBSTANCE: method involves arranging geotechnical barrier in ground between foundation of existent building and underground structure to be built; embedding thereof for design depth; building walls and bottom of underground structure. Geotechnical barrier is formed by making crack extending for a design barrier embedding depth on the path of ground deflected mode change wave propagation. Then flat pneumatic chamber is installed in the crack and compressed air is pumped in pneumatic chamber to obtain pressure corresponding to initial ground deflected mode. If ground deflected mode changes during structure erection compressed air is repeatedly pumped in pneumatic chamber to recover initial pressure. After structure erection completion hardening mortar is fed into pneumatic chamber.

EFFECT: prevention of ground deflected mode change under building foundation during underground structure erection.

2 dwg

Up!