Building bottom earthquake protection device

Abstract

The invention discloses an anti-seismic device for the bottom of a building. The energy of the transverse waves of an earthquake is absorbed by rolling supports at multiple points between the main body of the building and the foundation tray below. When the transverse waves generated by an earthquake come, the pile foundation and the foundation tray below move laterally with the ground, but the building itself will not move with the ground due to its own inertia. In this way, when the foundation tray and the pile foundation below move back and forth driven by the earthquake waves, the main body of the building itself does not move due to inertia. In this way, the energy of the transverse waves in the earthquake cannot reach the main body of the building, thereby avoiding damage to the main body of the building and achieving the purpose of anti-seismic of the building.

Description

Technical Field

[0001] The invention relates to the technical field of building earthquake protection, in particular to an earthquake protection device at the bottom of a building. Background Art

[0002] Throughout the ages, earthquakes have always been one of the most destructive natural disasters. The collapse of buildings caused by earthquakes has caused countless lives and properties to suffer from disasters. In order to prevent and reduce disasters in earthquakes, the state requires that buildings should be able to withstand a magnitude 7 earthquake. The current construction process of buildings mainly involves laying foundations in the earth, and then building various buildings on the foundations. Therefore, the buildings are fixed in the land through the foundations, and there is a rigid connection between the buildings and the foundations and the land. So far, the earthquake-resistant measures for buildings are mainly to increase the amount of steel bars in the columns and beams of the buildings or other methods. The effect of this earthquake-resistant measure is not ideal, because it does not change the state of the rigid connection between the building and the land. Once an earthquake occurs, the building is prone to collapse. The reason why earthquakes cause great damage to buildings is that the transverse waves of the earthquake are directly transmitted to the building through the rigid connection of the foundation, causing the four walls of the building to split and collapse.

[0003] Since such a connection structure cannot absorb and release the energy of seismic waves generated by earthquakes, it is necessary to improve and upgrade the structure at the bottom of the building to avoid and reduce the destructiveness and damage caused by earthquakes. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a building bottom anti-vibration device.

[0005] The technical solution of the present invention is: a seismic isolation device for the bottom of a building, comprising a pile foundation, a foundation base, a load-bearing tray, and a building body located on the upper part of the load-bearing tray, wherein: a plurality of rolling support mechanisms A are arranged on the upper surface of the foundation base, a plurality of limiting rings A matching the rolling support mechanisms A are provided on the lower surface of the load-bearing tray, and the rolling support mechanisms A form rolling contact with the surfaces of the limiting rings A; a plurality of U-shaped anti-dumping pull rings extending downward are provided on the load-bearing tray, and the pull rings comprise connecting columns and cross beams on both sides, the connecting columns on both sides extend downward from the lower surface of the load-bearing tray through two through holes located on the foundation base, the cross beam is located at the lower part of the lower surface of the foundation base, a rolling support mechanism B is provided between the upper surface of the cross beam and the lower surface of the foundation base, a limiting ring B matching the rolling support mechanism B is provided on the lower surface of the foundation base, and the rolling support mechanism B forms rolling contact with the surface of the inner limit ring B.

[0006] Preferably, the rolling support mechanisms A and B are the same rolling support mechanisms, which include a bottom support body and a universal ball on it, the bottom support body includes a disc body with a mounting hole, at least three protruding universal ball bearings are provided on the surface of the disc body, and universal balls are respectively installed in the universal ball bearings.

[0007] Preferably, the universal ball comprises a shell, small balls and a spherical body installed in a universal ball bearing. The exterior of the shell is cylindrical and matches the universal ball bearing. The interior of the shell is hemispherical. The spherical body is located in the hemispherical body. The small balls are distributed between the spherical body and the hemispherical body to form rolling contact.

[0008] Preferably, an adjustment gasket is provided on the bottom surface of the disc body.

[0009] Preferably, the pile foundations at the bottom of the foundation base plate include a plurality of main pile foundations of large size and a plurality of auxiliary pile foundations of small size which are distributed in an alternating manner, and the rolling support mechanism A is located on the foundation base plate directly above the main pile foundations.

[0010] Preferably, the pile foundation and the foundation base are reinforced concrete structures connected together, and the load-bearing tray and the anti-dumping pull ring are reinforced concrete structures connected together.

[0011] The anti-seismic device at the bottom of the building absorbs the energy of the transverse waves of the earthquake through multi-point rolling supports between the main body of the building and the underlying ground plate. When the transverse waves generated by the earthquake come, the pile foundation and the underlying ground plate move laterally with the ground, but the building itself will not move with the ground due to its own inertia. In this way, when the underlying ground plate and pile foundation move back and forth driven by the earthquake waves, the main body of the building itself does not move due to inertia, so the energy of the transverse waves in the earthquake cannot reach the main body of the building, thereby avoiding damage to the main body of the building and achieving the purpose of anti-seismic of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the earthquake-proof device at the bottom of the building;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the earthquake-proof device at the bottom of the building as viewed from bottom to top;

[0014] Figure 3 for Figure 2 A partial enlarged schematic diagram of

[0015] Figure 4 A three-dimensional structural diagram of the main body of the building viewed from bottom to top;

[0016] Figure 5This is one of the three-dimensional structural diagrams of the foundation plate and pile foundation;

[0017] Figure 6 This is the second schematic diagram of the three-dimensional structure of the foundation plate and pile foundation;

[0018] Figure 7 It is a schematic diagram of the main structure of the rolling support mechanism;

[0019] Figure 8 for Figure 7 AA cross-sectional structural diagram;

[0020] Fig. 9 is a schematic diagram of the three-dimensional structure of the rolling support mechanism;

[0021] Figure 1-9 Among them, 1. building body, 2. load tray, 3. foundation base, 4. pile foundation, 51. rolling support mechanism A, 52. rolling support mechanism B, 6. anti-dumping pull ring, 7. limit ring A, 8. through hole, 9. limit ring B, 41. main pile foundation, 42. auxiliary pile foundation, 51. disc body, 52. universal ball bearing, 53. shell, 54. ball, 55. small ball, 56. adjustment gasket, 57. mounting hole, 61. beam, 62. connecting column. DETAILED DESCRIPTION

[0022] Example 1: Attending a meeting Figure 1-9 The figure shows an anti-seismic device for the bottom of a building, comprising a pile foundation, a foundation base, a load-bearing tray, and a building body located on the upper part of the load-bearing tray, wherein: a plurality of rolling support mechanisms A are arranged on the upper surface of the foundation base, a plurality of limiting rings A matching the rolling support mechanisms A are arranged on the lower surface of the load-bearing tray, and the rolling support mechanisms A form rolling contact with the surface of the limiting rings A; a plurality of U-shaped anti-dumping pull rings extending downward are arranged on the load-bearing tray, and the pull rings include connecting columns and cross beams on both sides, the connecting columns on both sides extend downward from the lower surface of the load-bearing tray and pass through two through holes located on the foundation base, the cross beam is located at the lower part of the lower surface of the foundation base, a rolling support mechanism B is arranged between the upper surface of the cross beam and the lower surface of the foundation base, a limiting ring B matching the rolling support mechanism B is arranged on the lower surface of the foundation base, and the rolling support mechanism B forms rolling contact with the surface of the inner limit ring B. The rolling support mechanisms A and B form a sliding pair that can slide horizontally between the foundation base and the load-bearing tray, and the anti-dumping pull ring forms a handshake-like connection structure between the load-bearing tray and the foundation base to prevent the main body of the building from tipping over.

[0023] The rolling support mechanisms A and B are identical rolling support mechanisms, which include a bottom support body and a universal ball on top. The bottom support body includes a disc body with a mounting hole, and at least three protruding universal ball bearings are provided on the surface of the disc body, and universal balls are respectively installed in the universal ball bearings.

[0024] The universal ball comprises a shell, small balls and a spherical body installed in a universal ball bearing. The outer portion of the shell is cylindrical and matches the universal ball bearing. The inner portion of the shell is semi-spherical. The spherical body is located inside the semi-spherical body. The small balls are distributed between the spherical body and the semi-spherical body to form rolling contact, so that the spherical body can slide in any direction inside.

[0025] The bottom surface of the disc body is provided with an adjusting gasket, and the use of adjusting gaskets of different thicknesses can make the balls of multiple rolling support mechanisms be located on the same plane.

[0026] The pile foundation at the bottom of the foundation base includes a plurality of main pile foundations of large size and a plurality of auxiliary pile foundations of small size which are distributed in an alternating manner, and the position of the rolling support mechanism A on the foundation base is located directly above the main pile foundation.

[0027] The pile foundation and the foundation base are reinforced concrete structures connected together, and the load-bearing tray and the anti-dumping pull ring are reinforced concrete structures connected together.

[0028] When the lateral waves generated by an earthquake come, the pile foundation and the base plate below move laterally with the ground, but the building itself will not move with the ground due to its own inertia. In this way, when the base plate and pile foundation below move back and forth horizontally driven by the earthquake waves, the main body of the building itself does not move due to inertia. In this way, the energy of the lateral waves in the earthquake cannot reach the main body of the building, thereby avoiding damage to the main body of the building and achieving the purpose of earthquake resistance. The size and number of the anti-dumping pull ring and rolling support mechanisms A and B are determined according to the actual situation of the main body of the building, and are not excessively limited in this patent.

Claims

1. A seismic protection device for the bottom of a building, comprising a pile foundation, a foundation base, a load-bearing tray, and a building body located on the upper part of the load-bearing tray, characterized in that: A plurality of rolling support mechanisms A are arranged on the upper surface of the base chassis, and a plurality of limiting rings A matching the rolling support mechanisms A are provided on the lower surface of the load-bearing tray, and the rolling support mechanisms A form rolling contact with the surface of the limiting rings A; the load-bearing tray is provided with a plurality of U-shaped anti-dumping pull rings extending downward, and the pull rings include connecting columns and a cross beam on both sides, and the connecting columns on both sides extend downward from the lower surface of the load-bearing tray and pass through two through holes located on the base chassis, and the cross beam is located at the lower part of the lower surface of the base chassis, and a rolling support mechanism B is provided between the upper surface of the cross beam and the lower surface of the base chassis, and a limiting ring B matching the rolling support mechanism B is provided on the lower surface of the base chassis, and the rolling support mechanism B forms rolling contact with the surface of the inner limit ring B.

2. The building bottom anti-seismic device according to claim 1, characterized in that: The rolling support mechanisms A and B are identical rolling support mechanisms, which include a bottom support body and a universal ball on top. The bottom support body includes a disc body with a mounting hole, and at least three protruding universal ball bearings are provided on the surface of the disc body, and universal balls are respectively installed in the universal ball bearings.

3. The anti-vibration device for the bottom of a building according to claim 2, characterized in that: The universal ball comprises a shell, small balls and a sphere installed in a universal ball socket. The outer portion of the shell is cylindrical and matches the universal ball socket. The inner portion of the shell is semi-spherical. The sphere is located in the semi-spherical shape. The small balls are distributed between the sphere and the semi-spherical shape to form rolling contact.

4. The building bottom anti-vibration device according to claim 2, characterized in that: An adjusting gasket is arranged on the bottom surface of the disc body.

5. The building bottom anti-vibration device according to claim 2, characterized in that: The pile foundation at the bottom of the foundation base includes a plurality of main pile foundations of large size and a plurality of auxiliary pile foundations of small size which are distributed in an alternating manner, and the position of the rolling support mechanism A on the foundation base is located directly above the main pile foundation.

6. The building bottom anti-seismic device according to claim 1, characterized in that: The pile foundation and the foundation base are reinforced concrete structures connected together, and the load-bearing tray and the anti-dumping pull ring are reinforced concrete structures connected together.

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