CN113322788A

CN113322788A - Vibration damping buffer support for highway bridge

Info

Publication number: CN113322788A
Application number: CN202110699288.6A
Authority: CN
Inventors: 于健
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-08-31

Abstract

The invention discloses a vibration damping buffer support for a highway bridge, which comprises a base, wherein the top of the base is fixedly connected with a buffer seat, the upper surface of the base is provided with the vibration damping support, the lower surface of the vibration damping support is provided with a groove matched with the buffer seat, two sides of the inner wall of the top of the groove are respectively provided with a clamping groove, the inside of each clamping groove is fixedly connected with a first vibration damping spring, the bottom of each first vibration damping spring is fixedly connected with a sliding plate, the bottom of each sliding plate is provided with a support rod movably connected with the buffer seat, and the inside of the buffer seat is provided with a buffer cavity. This a damping cushion support for public road bridge roof beam, novel structure thinks about ingeniously, can reach and carry out the effect that many times the damping was cushioned to public road bridge roof beam, and then effectively improve public road bridge roof beam's stability, avoid external force to cause the harm to the bridge, improve the security and the life of bridge, have stronger practicality.

Description

Vibration damping buffer support for highway bridge

Technical Field

The invention relates to the technical field of bridge engineering, in particular to a vibration damping buffer support for a highway bridge.

Background

The bridge can cause self vibration under the action of external vibration, the vibration can cause damage on the bridge structure, and the damage can directly influence the safety and the service life of the bridge in the long term, so that the vibration resistance of the bridge is very important for the whole highway bridge engineering and is also an important index for measuring the quality of the bridge engineering.

The conventional vibration damping device for the highway bridge has a single structure and limited vibration damping and buffering effects, and cannot meet the use requirements, so that the design of the vibration damping and buffering support for the highway bridge is necessary.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the invention provides the vibration reduction buffer support for the highway bridge, which has the advantages of novel structure and ingenious design, can achieve the effect of carrying out vibration reduction and buffering on the highway bridge for many times, further effectively improves the stability of the highway bridge, avoids the damage of external force on the bridge, improves the safety and the service life of the bridge, and has stronger practicability.

In order to achieve the purpose, the invention provides the following technical scheme: a vibration damping buffer support for a highway bridge comprises a base, wherein a buffer seat is fixedly connected to the top of the base, a vibration damping support is arranged on the upper surface of the base, a groove matched with the buffer seat is formed in the lower surface of the vibration damping support, clamping grooves are respectively formed in two sides of the inner wall of the top of the groove, a first vibration damping spring is fixedly connected to the inside of each clamping groove, a sliding plate is fixedly connected to the bottom of each first vibration damping spring, a supporting rod movably connected with the buffer seat is arranged at the bottom of each sliding plate, a buffer cavity is formed in the buffer seat, limiting sleeves are respectively fixedly connected to the inside of each buffer cavity, buffer rods extending out of the buffer seats are respectively and slidably connected to the inside of each limiting sleeve, a convex block is fixedly connected to the outer side of each buffer rod, a reset spring is fixedly connected between each convex block and each limiting sleeve, and a vibration damping grooves are formed in the inner part of the upper surface of the vibration damping support, the bottom inner wall fixedly connected with second damping spring in damping groove, second damping spring's top fixedly connected with backup pad, the top of backup pad is provided with the bridge bracing piece, the bottom fixedly connected with of backup pad extends to the movable rod of cushion chamber inside, the both sides outer wall difference fixedly connected with fixed block of damping support, the upper surface both sides difference fixedly connected with of base passes the bracing piece of fixed block, the outside of bracing piece is provided with second damping spring.

Preferably, the buffer seat is disposed inside the groove.

Preferably, a supporting spring is fixedly connected between the vibration reduction support and the base.

Preferably, opposite sides of two of said buffer rods are arranged obliquely.

Preferably, one side of the buffer rod, which is far away from the buffer seat, is provided with anti-skid grains.

Preferably, the upper surface of the support plate is provided with a rubber cushion pad.

Preferably, the top of the supporting rod is movably connected with a limiting block.

The invention has the beneficial effects that:

1. when the upper end of the bridge supporting rod is stressed by pressure from a highway bridge, firstly, the first vibration damping buffering of the highway bridge is realized through the cooperation of the second vibration damping spring and the supporting plate, the pressure is transmitted to the base through the vibration damping support, and further, the second vibration damping buffering of the highway bridge is realized through the cooperation of the fixed block, the supporting rod and the second vibration damping spring, meanwhile, when the vibration damping support moves downwards, the third vibration damping buffering of the highway bridge is realized through the cooperation of the first vibration damping spring and the supporting rod, the inclined plane of the buffering rod is extruded through the movable rod moving downwards along with the vibration damping support, the buffering rods on the two sides move back and forth, and further, the buffering rods on the two sides are respectively contacted with the inner walls on the two sides of the groove, the highway bridge is further buffered through the friction force generated between the inner walls on the two sides of the groove and the buffering rods, and the vibration damping buffering support for the highway bridge, the effect of carrying out many times damping buffering can be reached through the mating reaction of above-mentioned structure to public road bridge roof beam, and then effectively improves public road bridge roof beam's stability, avoids external force to cause the harm to the bridge, improves the security and the life of bridge.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall plan structure of the present invention;

FIG. 2 is a schematic view of a structural assembly of the vibration dampening mount of the present invention;

FIG. 3 is a schematic view of the internal components of the buffer base according to the present invention.

Reference numbers in the figures: 1. a base; 2. a buffer seat; 3. a vibration damping support; 4. a groove; 5. a card slot; 6. a first damping spring; 7. a slide plate; 8. a strut; 9. a buffer chamber; 10. a limiting sleeve; 11. a buffer rod; 12. a bump; 13. a return spring; 14. a vibration damping tank; 15. a second damping spring; 16. a support plate; 17. a rubber cushion pad; 18. a bridge support bar; 19. a movable rod; 20. a fixed block; 21. a support bar; 22. a limiting block; 23. a second buffer spring; 24. supporting the spring.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

Example one

As shown in fig. 1-3, a vibration damping cushion support for a highway bridge comprises a base 1, a cushion seat 2 is fixedly connected to the top of the base 1, a vibration damping support 3 is arranged on the upper surface of the base 1, a supporting spring 24 is fixedly connected between the vibration damping support 3 and the base 1, a groove 4 matched with the cushion seat 2 is formed in the lower surface of the vibration damping support 3, the cushion seat 2 is arranged inside the groove 4, a clamping groove 5 is respectively formed in each of two sides of the inner wall of the top of the groove 4, a first vibration damping spring 6 is fixedly connected inside the clamping groove 5, a sliding plate 7 is fixedly connected to the bottom of the first vibration damping spring 6, a supporting rod 8 movably connected with the cushion seat 2 is arranged at the bottom of the sliding plate 7, a cushion chamber 9 is formed inside the cushion seat 2, a limiting sleeve 10 is respectively fixedly connected inside the cushion chamber 9, a buffering rod 11 extending out of the cushion seat 2 is respectively and slidably connected inside the limiting sleeve 10, the opposite sides of the two buffer rods 11 are obliquely arranged, one side of each buffer rod 11, which is far away from the buffer base 2, is provided with anti-skid lines, the outer side of each buffer rod 11 is fixedly connected with a lug 12, a reset spring 13 is fixedly connected between each lug 12 and a limiting sleeve 10, the inner part of the upper surface of each damping support 3 is provided with a damping groove 14, the inner wall of the bottom of each damping groove 14 is fixedly connected with a second damping spring 15, the top of each second damping spring 15 is fixedly connected with a support plate 16, the upper surface of each support plate 16 is provided with a rubber buffer cushion 17, the top of each support plate 16 is provided with a bridge support rod 18, the bottom of each support plate 16 is fixedly connected with a movable rod 19 extending into the buffer cavity 9, the outer walls of the two sides of each damping support 3 are respectively and fixedly connected with a fixed block 20, the two sides of the upper surface of the base 1 are respectively and fixedly connected with a support rod 21 penetrating through the fixed blocks 20, and the top of the support rods 21 is movably connected with a limiting block 22, the support rod 21 is limited by the limiting block 22, the support rod 21 is prevented from being separated from the fixed block 20, and a second buffer spring 23 is arranged on the outer side of the support rod 21.

When the upper end of the bridge supporting rod 18 is pressed by a highway bridge, firstly, the first vibration damping buffering of the highway bridge is realized through the cooperation of the second vibration damping spring 15 and the supporting plate 16, the pressure is transmitted to the base 1 through the vibration damping support 3, then, the second vibration damping buffering of the highway bridge is realized through the cooperation of the fixed block 20, the supporting rod 21 and the second vibration damping spring 23, meanwhile, when the vibration damping support 3 moves downwards, the third vibration damping buffering of the highway bridge is realized through the cooperation of the first vibration damping spring 6 and the supporting rod 8, the inclined plane of the buffering rod 11 is extruded through the movable rod 19 moving downwards along with the vibration damping support 3, the buffering rods 11 at two sides move back and back, and then the buffering rods 11 at two sides are respectively contacted with the inner walls at two sides of the groove 4, and the highway bridge is further buffered through the friction force generated between the inner walls at two sides of the groove 4 and the buffering rods 11, this a damping cushion support for public road bridge roof beam can reach the effect of carrying out many times damping buffering to public road bridge roof beam through the mating reaction of above-mentioned structure, and then effectively improves public road bridge roof beam's stability, avoids external force to cause the harm to the bridge, improves the security and the life of bridge.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a damping cushion support for public road bridge roof beam, includes base (1), its characterized in that: the damping device is characterized in that a buffering seat (2) is fixedly connected to the top of the base (1), a damping support (3) is arranged on the upper surface of the base (1), a groove (4) matched with the buffering seat (2) is formed in the lower surface of the damping support (3), clamping grooves (5) are formed in two sides of the inner wall of the top of each groove (4), a first damping spring (6) is fixedly connected to the inside of each clamping groove (5), a sliding plate (7) is fixedly connected to the bottom of each first damping spring (6), a supporting rod (8) movably connected with the buffering seat (2) is arranged at the bottom of each sliding plate (7), a buffering cavity (9) is formed in the buffering seat (2), a limiting sleeve (10) is fixedly connected to the inside of each buffering cavity (9), and a buffering rod (11) extending out of the buffering seat (2) is slidably connected to the inside of each limiting sleeve (10), the outer side of the buffer rod (11) is fixedly connected with a lug (12), a return spring (13) is fixedly connected between the lug (12) and the limiting sleeve (10), a damping groove (14) is formed in the inner part of the upper surface of the damping support (3), a second damping spring (15) is fixedly connected to the inner wall of the bottom of the damping groove (14), the top of the second damping spring (15) is fixedly connected with a support plate (16), a bridge supporting rod (18) is arranged at the top of the supporting plate (16), a movable rod (19) extending to the interior of the buffer cavity (9) is fixedly connected at the bottom of the supporting plate (16), the outer walls of the two sides of the vibration damping support (3) are respectively and fixedly connected with a fixed block (20), two sides of the upper surface of the base (1) are respectively and fixedly connected with a supporting rod (21) which penetrates through the fixing block (20), and a second buffer spring (23) is arranged on the outer side of the support rod (21).

2. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: the buffer seat (2) is arranged inside the groove (4).

3. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: and a supporting spring (24) is fixedly connected between the vibration reduction support (3) and the base (1).

4. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: the opposite sides of the two buffer rods (11) are obliquely arranged.

5. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: and anti-skid grains are arranged on one side, away from the buffer seat (2), of the buffer rod (11).

6. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: the upper surface of the supporting plate (16) is provided with a rubber buffer (17).

7. A vibration-damping and cushioning mount for road and bridge girders as claimed in claim 1, wherein: the top of the supporting rod (21) is movably connected with a limiting block (22).