Pressure-resistant and anti-seismic bridge support for highway

Abstract

The utility model discloses a pressure-resistant shock-resistant highway bridge support which comprises a bottom plate, a lower support is arranged in the center of the upper portion of the bottom plate, a rubber support is arranged in an upper support, spring supports are arranged on the periphery of the lower portion of the upper support, a connecting rod is arranged between a sliding sleeve and a top plate, and a connecting rod is arranged between the sliding sleeve and the top plate. A damper is arranged on the third triangular connecting piece, and a fourth triangular connecting piece is arranged at the top of the damper and installed on the bottom face of the top plate. Through the arrangement of the connecting rods and the dampers, the connecting rods and the dampers are arranged between the bottom plate and the top plate, the design of the X-shaped connecting rods and the dampers is combined, a multiple damping mechanism is formed, the dampers dissipate vibration energy through the damping force of the dampers, and the X-shaped connecting rods limit the vibration amplitude of the structure through the rigidity and stability of the X-shaped connecting rods; by means of the combination mode, the damping effect can be remarkably improved, the influence of vibration on the bridge support is reduced, and the service life of the bridge support is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge supports, in particular to a pressure-resistant and earthquake-resistant highway bridge support. Background Art

[0002] Bridge bearings are important structural components connecting the superstructure and substructure of a bridge. They are located between the bridge and the pad stone. They can reliably transmit the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge. They are important force transmission devices of the bridge. Therefore, highways need bridge bearings to ensure the overall stability and safety of the bridge structure, adapt to various deformations and vibrations, ensure driving comfort and safety, and adjust displacement to ensure the stability of the bridge under special circumstances.

[0003] Existing bridge supports rely solely on an elastic shock-absorbing tube to absorb and disperse the energy generated by external forces such as earthquakes. Their shock-absorbing effect may be relatively limited, and their pressure resistance and seismic resistance are poor. They are unable to effectively absorb and disperse high-frequency vibration energy, resulting in a decrease in shock-absorbing effect and difficulty in coping with complex and changeable seismic waves and other external loads.

[0004] For example, a bridge bearing disclosed in the announcement number CN208250902U, the bridge pillars in this patent mainly rely on multiple elastic movable balls clamped between the upper bearing plate and the lower bearing plate to make the force of the entire bridge bearing stable and uniform, thereby improving the safety of the bridge. However, the elastic movable balls have relatively weak absorption and dispersion capabilities for high-frequency vibration energy. In a high-frequency vibration environment, such as bridge vibration caused by fast-moving vehicles, the elastic movable balls alone may not be able to fully absorb these high-frequency energies, causing the vibration to be transmitted to other parts of the bridge structure, affecting the stability and safety of the bridge.

[0005] Therefore, it is necessary to invent a pressure-resistant and earthquake-resistant highway bridge bearing to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a pressure-resistant and earthquake-resistant highway bridge support to solve the problem of poor pressure-resistant and earthquake-resistant effects in the technology.

[0007] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pressure-resistant and earthquake-resistant highway bridge bearing, comprising a bottom plate, a lower bearing, an upper bearing and a top plate, a lower bearing is provided at the upper center of the bottom plate, an upper bearing is provided above the lower bearing, a top plate is provided on the top of the upper bearing, a rubber bearing is provided inside the upper bearing, a spring bearing is provided around the bottom of the upper bearing, an installation frame is provided above the bottom plate, a sliding rod is provided inside the installation frame, a sliding sleeve is provided on the sliding rod, a connecting rod is provided between the sliding sleeve and the top plate, a No. 3 triangular connecting piece is provided above the bottom plate, a damper is provided on the No. 3 triangular connecting piece, a No. 4 triangular connecting piece is provided on the top of the damper and is installed on the bottom surface of the top plate.

[0008] Preferably, the upper support is nested on the outside of the lower support, and there is a certain gap between the top of the lower support and the inner top of the upper support. The spring support fills the gap and uses the elasticity of the spring to absorb and disperse the vertical and horizontal forces exerted on the bridge, thereby enhancing the pressure resistance and seismic resistance of the support.

[0009] Preferably, a plurality of spring supports are provided, the top surfaces of the plurality of spring supports are fixedly mounted on the bottom surface of the upper support, the bottom surfaces of the plurality of spring supports are fixedly mounted on the top surface of the base plate, and the plurality of spring supports are distributed in a circular uniform array, which can ensure that when the support is subjected to pressure or vibration, the force can be evenly dispersed to each spring to avoid local overload.

[0010] Preferably, the sliding rod and the sliding sleeve are slidably connected, a compression spring is provided on one side of the sliding sleeve and is sleeved on the sliding rod, one end of the compression spring is connected to the side wall of the sliding sleeve, and the other end of the compression spring is connected to the inner wall of the mounting frame. The sliding connection between the sliding rod and the sliding sleeve, combined with the design of the compression spring, provides the bridge support with additional shock-absorbing capacity in the horizontal direction.

[0011] Preferably, a No. 1 triangular connector is provided above the sliding sleeve, a connecting rod is hinged on the No. 1 triangular connector, the top end of the connecting rod is hinged to the No. 2 triangular connector, and the No. 2 triangular connector is installed on the bottom surface of the top plate. The connecting rod is connected in a hinged manner and can adapt to the deformation and vibration of the bridge support when it is subjected to external force to a certain extent.

[0012] Preferably, there are four connecting rods, which are respectively arranged around the lower support and the upper support. The four connecting rods are designed in an "X" shape. The intersections of the connecting rods are hinged. The connecting rods enhance the rigidity and stability of the bridge support in the vertical and horizontal directions.

[0013] Preferably, eight dampers are provided, and the eight dampers are respectively located at the front and rear ends and the left and right sides of the bottom plate and the top plate, which can effectively dissipate the energy generated by the vibration of the bridge and further improve the seismic performance of the bearing.

[0014] Preferably, one end of the damper is hinged to the third triangular connector, and the other end of the damper is hinged to the fourth triangular connector. The hinged damper can allow a certain degree of deformation and displacement while absorbing vibration energy.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. By arranging rubber bearings and spring bearings, the upper bearing is placed above the lower bearing, and the rubber bearing is filled between the top of the inner top of the upper bearing and the top of the inner top of the lower bearing. At the same time, multiple spring bearings are arranged around the bottom of the upper bearing. The rubber bearing uses its excellent elasticity and damping properties to absorb and disperse the vibration energy from the foundation or bridge deck, while the spring bearing further buffers and consumes the vibration energy through its elastic deformation. The combined effect of the rubber bearing and the spring bearing forms a dual shock absorption mechanism. This combination significantly improves the overall shock absorption effect.

[0017] 2. By setting connecting rods and dampers, connecting rods and dampers are set between the bottom plate and the top plate. Combined with the design of "X"-shaped connecting rods and dampers, a multiple shock absorption mechanism is formed. The damper dissipates vibration energy through its damping force, while the "X"-shaped connecting rod limits the vibration amplitude of the structure through its rigidity and stability. This combination can significantly improve the shock absorption effect, reduce the impact of vibration on the bridge bearings, and effectively increase the service life of the bridge bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the upper support and top plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the lower support and the upper support of the present invention;

[0021] Figure 4 This is a schematic diagram of the top view of the installation frame of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the installation frame of the present invention.

[0023] Description of reference numerals:

[0024] 1. Bottom plate; 2. Lower support; 3. Upper support; 4. Top plate; 5. Rubber support; 6. Spring support; 7. Mounting frame; 8. Slide rod; 9. Slide sleeve; 10. Triangle connector No. 1; 11. Compression spring; 12. Connecting rod; 13. Triangle connector No. 2; 14. Triangle connector No. 3; 15. Damper; 16. Triangle connector No. 4. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-5 A pressure-resistant and earthquake-resistant highway bridge bearing shown in FIG. 1 includes a base plate 1, a lower bearing 2, an upper bearing 3 and a top plate 4. A lower bearing 2 is arranged at the upper center of the base plate 1, an upper bearing 3 is arranged above the lower bearing 2, and a top plate 4 is arranged on the top of the upper bearing 3. A mounting frame 7 is arranged above the base plate 1, a sliding rod 8 is arranged inside the mounting frame 7, a sliding sleeve 9 is arranged on the sliding rod 8, and a connecting rod 12 is arranged between the sliding sleeve 9 and the top plate 4. A No. 3 triangular connector 14 is arranged above the base plate 1, a damper 15 is arranged on the No. 3 triangular connector 14, and a No. 4 triangular connector 16 is arranged on the top of the damper 15 and is installed on the bottom surface of the top plate 4.

[0027] The upper support 3 is nested on the outside of the lower support 2, and there is a certain gap between the top of the lower support 2 and the inner top of the upper support 3. A rubber support 5 is provided inside the upper support 3, and a spring support 6 is provided around the bottom of the upper support 3. The spring support 6 fills the gap. There are multiple spring supports 6, and the top surfaces of the multiple spring supports 6 are fixedly mounted on the bottom surface of the upper support 3. The bottom surfaces of the multiple spring supports 6 are fixedly mounted on the top surface of the base plate 1. The multiple spring supports 6 are distributed in a uniform annular array.

[0028] The design of the nested upper support 3 and lower support 2 combined with the rubber support 5 and multiple spring supports 6 can significantly improve the vertical bearing capacity of the bridge support. At the same time, the rubber support 5 and spring support 6 can absorb and disperse the vertical load from the bridge superstructure, reduce the impact on the bridge piers, and improve the shock absorption performance of the bridge.

[0029] The sliding rod 8 and the sliding sleeve 9 are slidingly connected. A compression spring 11 is provided on one side of the sliding sleeve 9 and is sleeved on the sliding rod 8. One end of the compression spring 11 is connected to the side wall of the sliding sleeve 9, and the other end of the compression spring 11 is connected to the inner wall of the mounting frame 7. A No. 1 triangular connecting piece 10 is provided above the sliding sleeve 9. A connecting rod 12 is hinged on the No. 1 triangular connecting piece 10. The top of the connecting rod 12 is hinged to the No. 2 triangular connecting piece 13. The No. 2 triangular connecting piece 13 is installed on the bottom surface of the top plate 4. There are four connecting rods 12. The four connecting rods 12 are respectively arranged around the lower support 2 and the upper support 3. The four connecting rods 12 are designed in an "X" shape structure. The intersection of the connecting rods 12 is hinged. There are 8 dampers 15. The eight dampers 15 are respectively located at the front and rear ends and the left and right sides of the bottom plate 1 and the top plate 4. One end of the damper 15 is hinged on the No. 3 triangular connecting piece 14, and the other end of the damper 15 is hinged on the No. 4 triangular connecting piece 16.

[0030] The sliding connection between the slide rod 8 and the sleeve 9 and the setting of the compression spring 11 provide the support with shock-absorbing ability in the horizontal direction. Under the action of horizontal forces such as earthquakes or strong winds, the sleeve 9 can slide on the slide rod 8, and at the same time the compression spring 11 absorbs and releases energy, reducing the impact of horizontal vibration on the bridge structure. The structure composed of the No. 1 triangular connector 10, the connecting rod 12 and the No. 2 triangular connector 13 enhances the stability of the bridge support in the horizontal and vertical directions. This structure can effectively resist external torque and deformation, maintain the integrity of the bridge support structure, and the setting of the damper 15 further improves the energy dissipation and shock absorption effect of the bridge support. Under extreme working conditions such as earthquakes, the damper 15 can dissipate vibration energy through its internal viscous liquid or friction mechanism, reducing the damage to the bridge structure caused by vibration.

[0031] Working principle of this utility model:

[0032] Refer to the instruction manual Figure 1-3 When using the present invention, the bridge support is first firmly installed in a suitable position through the bottom plate 1 and the top plate 4. When subjected to external impact or vibration, the rubber support 5 uses its elastic properties to provide support in the vertical direction and absorb part of the vibration energy, and the spring support 6 undergoes elastic deformation to absorb and disperse the vibration energy, reducing the vibration amplitude transmitted to the upper structure;

[0033] Refer to the instruction manual Figure 4-5When the utility model is used, the sliding sleeve 9 slides on the sliding rod 8, and the compression spring 11 is deformed. Through sliding friction and the elastic restoring force of the compression spring 11, the impact energy in the horizontal direction is further absorbed and consumed. Then the "X"-shaped connecting rod 12 maintains the stability of the bridge support during the vibration process to prevent the bridge support from excessive deformation. At the same time, the damper 15 absorbs and consumes vibration energy during the vibration process, so that the vibration energy transmitted to the bridge superstructure is further reduced, achieving a shock absorption effect. Therefore, the bridge support works together through multiple mechanisms such as structural support and dispersion, elastic shock absorption, sliding shock absorption, triangular connection stability, and damping and consuming vibration to achieve effective shock absorption and protection of the bridge structure.

Claims

1. A pressure-resistant and earthquake-resistant highway bridge bearing, comprising a bottom plate (1), a lower bearing (2), an upper bearing (3) and a top plate (4), characterized in that: A lower support (2) is provided at the center of the upper portion of the bottom plate (1), an upper support (3) is provided above the lower support (2), a top plate (4) is provided on the top of the upper support (3), a rubber support (5) is provided inside the upper support (3), a spring support (6) is provided around the lower portion of the upper support (3), a mounting frame (7) is provided above the bottom plate (1), a sliding rod (8) is provided inside the mounting frame (7), a sliding sleeve (9) is provided on the sliding rod (8), a connecting rod (12) is provided between the sliding sleeve (9) and the top plate (4), a No. 3 triangular connecting piece (14) is provided above the bottom plate (1), a damper (15) is provided on the No. 3 triangular connecting piece (14), a No. 4 triangular connecting piece (16) is provided on the top of the damper (15) and is mounted on the bottom surface of the top plate (4).

2. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 1, characterized in that: The upper support (3) is nested outside the lower support (2), and there is a certain gap between the top of the lower support (2) and the inner top of the upper support (3), and the spring support (6) is filled in the gap.

3. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 1, characterized in that: A plurality of spring supports (6) are provided, the top surfaces of the plurality of spring supports (6) are fixedly mounted on the bottom surface of the upper support (3), the bottom surfaces of the plurality of spring supports (6) are fixedly mounted on the top surface of the bottom plate (1), and the plurality of spring supports (6) are evenly distributed in a circular array.

4. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 1, characterized in that: The slide rod (8) and the slide sleeve (9) are slidably connected. A compression spring (11) is provided on one side of the slide sleeve (9) and is sleeved on the slide rod (8). One end of the compression spring (11) is connected to the side wall of the slide sleeve (9), and the other end of the compression spring (11) is connected to the inner wall of the installation frame (7).

5. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 4, characterized in that: A No. 1 triangular connector (10) is provided above the sliding sleeve (9), a connecting rod (12) is hinged on the No. 1 triangular connector (10), a top end of the connecting rod (12) is hinged to a No. 2 triangular connector (13), and the No. 2 triangular connector (13) is installed on the bottom surface of the top plate (4).

6. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 5, characterized in that: Four connecting rods (12) are provided, and the four connecting rods (12) are respectively provided around the lower support (2) and the upper support (3). The four connecting rods (12) are designed in an "X"-shaped structure, and the intersections of the connecting rods (12) are hinged.

7. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 1, characterized in that: There are eight dampers (15), and the eight dampers (15) are respectively located at the front and rear ends and the left and right sides of the bottom plate (1) and the top plate (4).

8. The pressure-resistant and earthquake-resistant highway bridge bearing according to claim 7, characterized in that: One end of the damper (15) is hinged to the third triangular connector (14), and the other end of the damper (15) is hinged to the fourth triangular connector (16).

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