CN219280455U

CN219280455U - Bridge shock-absorbing structure

Info

Publication number: CN219280455U
Application number: CN202223461586.0U
Authority: CN
Inventors: 余青松; 石建文; 尹书军; 黄小梅; 刘和清; 陈靖
Original assignee: Wuhan Construction Engineering Consulting Co ltd
Current assignee: Wuhan Construction Engineering Consulting Co ltd
Priority date: 2022-12-24
Filing date: 2022-12-24
Publication date: 2023-06-30
Anticipated expiration: 2032-12-24

Abstract

The utility model relates to the field of bridge damping members, in particular to a bridge damping structure. The technical scheme includes that the novel embedded type steel plate comprises a bottom plate, wherein a built-in limiting frame is fixedly arranged on the upper surface of the bottom plate, a limiting cover is movably sleeved on the top end of the built-in limiting frame, at least four connecting steel columns are fixedly arranged on the top of the bottom plate, a plurality of connecting steel columns are movably sleeved with a plurality of layers of rubber base plates in a co-moving mode, the plurality of layers of rubber base plates are located inside the limiting cover and the built-in limiting frame, the top end of each connecting steel column extends to the upper side of the limiting cover, and embedded parts are fixedly arranged on the lower surface of the bottom plate. The utility model has the beneficial effects that: through limit cap and built-in limit frame, can restrict the scope of expanding outward of multilayer rubber backing plate, when multilayer rubber backing plate received pressure, get into compression state, its thickness reduces and can diffuse all around, restricts its scope of expanding outward this moment, can reduce its probability of damaging, prolongs its life, has effectively improved shock-absorbing structure's durability.

Description

Bridge shock-absorbing structure

Technical Field

The utility model relates to the field of bridge damping members, in particular to a bridge damping structure.

Background

In the construction process of the bridge, a damping structure is additionally arranged at the joint of the bridge deck and the bridge pier, the damping structure is usually made of high-damping rubber materials, damping and damping are carried out on structural vibration and noise by using the viscoelasticity of the rubber, the vibration can be restrained and damped, the seismic acting force is reduced by absorbing energy, and the seismic performance of the bridge is improved.

In the practical installation process of the traditional bridge damping structure, most of the traditional bridge damping structure is provided with a rubber cushion plate between two steel plates, the two steel plates are respectively and fixedly connected with the bottom end of a bridge deck and the top end of a bridge pier, the rubber cushion plate can buffer vibration when vibration is generated, and the vibration-resistant effect of the bridge is improved in sequence; in view of this, we propose a bridge damping structure that can limit the expansion range of the rubber mat and thereby extend its service life.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a bridge damping structure which can limit the expansion range of a rubber backing plate and prolong the service life of the rubber backing plate.

The technical scheme of the utility model is as follows: the utility model provides a bridge shock-absorbing structure, includes the bottom plate, the last fixed surface of bottom plate installs built-in limit frame, the top movable sleeve of built-in limit frame is equipped with the limit cap, the top fixed mounting of bottom plate has four at least connection steel columns, and a plurality of joint steel column goes up the co-movable cover and is equipped with the multilayer rubber backing plate, the multilayer rubber backing plate is located limit cap and built-in limit frame inside, every the top of connecting the steel column all extends to the top of limit cap, the lower fixed surface of bottom plate installs the built-in fitting.

Preferably, the top fixed mounting of bottom plate has four at least reference columns, at least four limit grooves that are bottom open-ended have been cut on the limiting cover, every the top of reference column all inserts assorted limit groove in and rather than swing joint, further improves the stability that the limiting cover is connected with built-in limit frame.

Preferably, each circular rubber gasket is fixedly installed on the inner top wall of the limiting groove, each circular rubber gasket is located above the corresponding positioning column, and when collision occurs between the top end of the positioning column and the bottom of the limiting groove, impact force is buffered by the circular rubber gaskets, so that the damage probability of the positioning column can be reduced.

Preferably, each connecting steel column penetrates through the round through groove cut in the multilayer rubber backing plate and is movably connected with the round through groove, each connecting steel column is fixedly provided with an embedded steel sheet at the top end, and after the embedded steel sheet is embedded into pouring concrete of the bridge deck, the connecting steel columns and the bridge deck are firmly connected into a whole.

Preferably, at least four circular openings are cut on the top plate of the limiting cover, and each connecting steel column penetrates through the corresponding circular opening and is movably connected with the corresponding circular opening, so that the connecting steel column can penetrate through the limiting cover.

Preferably, the embedded part comprises two steel plates, each steel plate is fixedly arranged on the lower surface of the bottom plate, a plurality of long reinforcing ribs are fixedly arranged between the two steel plates together, and the embedded part and the pouring concrete of the pier can be firmly connected into a whole through the long reinforcing ribs.

Preferably, each steel plate is provided with a plurality of strip-shaped openings, each strip-shaped opening is internally provided with a plurality of short reinforcing ribs, the poured concrete of the bridge pier is embedded into the strip-shaped openings, and the steel plates can be firmly buried in the concrete.

Compared with the prior art, the utility model has the following beneficial technical effects: through limit cap and built-in limit frame, can restrict the scope of expanding outward of multilayer rubber backing plate, when multilayer rubber backing plate received pressure, get into compression state, its thickness reduces and can diffuse all around, restricts its scope of expanding outward this moment, can reduce its probability of damaging, prolongs its life, has effectively improved shock-absorbing structure's durability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram illustrating the assembly of a base plate and a built-in stop frame according to the present utility model;

FIG. 3 is a schematic view of an embedded part structure in the utility model;

fig. 4 is an enlarged schematic view of fig. 1 a according to the present utility model.

Reference numerals: 1. a bottom plate; 2. a limit frame is arranged in the inner part; 3. a limiting cover; 31. a limit groove; 32. a circular rubber gasket; 4. connecting a steel column; 41. embedding a steel sheet; 5. a multi-layer rubber backing plate; 6. positioning columns; 7. an embedded part; 71. a steel plate; 72. a strip-shaped opening; 73. long reinforcing ribs; 74. short reinforcing ribs.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-4, the bridge shock absorption structure provided by the utility model comprises a bottom plate 1, wherein a built-in limit frame 2 is welded on the upper surface of the bottom plate 1, a plurality of connecting steel columns 4 are welded on the top end of the bottom plate 1, the connecting steel columns 4 are all positioned in the built-in limit frame 2, a plurality of layers of rubber backing plates 5 are movably sleeved on the connecting steel columns 4 together, a limit cover 3 is movably sleeved on the top end of the built-in limit frame 2, the top of the multi-layer rubber backing plates 5 is positioned in the limit cover 3 and is tightly contacted with the inner top wall of the limit cover 3, the multi-layer rubber backing plates 5 are ensured to be integrally coated in a closed interval formed by the limit cover 3, the built-in limit frame 2 and the bottom plate 1, and the diffusion range of the multi-layer rubber backing plates 5 can be limited when the multi-layer rubber backing plates are diffused to the periphery; at least two positioning columns 6 are welded on the upper surface of the bottom plate 1 and positioned on two sides of the built-in limiting frame 2, the top end of each positioning column 6 is inserted into a limiting groove 31 cut at the bottom end of the limiting cover 3 and is movably connected with the limiting groove, and in the process of downward movement of the limiting cover 3, the stability of the downward movement of the limiting cover 3 can be improved, and the inner wall of the limiting cover 3 is prevented from being blocked by contact with the outer wall of the built-in limiting frame 2; the lower surface of the bottom plate 1 is integrally formed with two steel plates 71 by adopting a casting process, a plurality of long reinforcing ribs 73 are welded between the two steel plates 71, the steel plates 71 and the long reinforcing ribs 73 form an embedded part 7 together, the embedded part 7 is embedded in the casting concrete of the pier, and the shock absorption structure can be firmly installed at the top of the pier.

Further, the top end of each connecting steel column 4 is integrally formed with an embedded steel sheet 41 by adopting a casting process, the embedded steel sheet 41 is embedded into the pouring concrete of the bridge deck, the connecting steel columns 4 and the bridge deck can be firmly connected into a whole, and the shock absorption structure can be firmly installed at the connection part of the bridge deck and the bridge pier; each steel plate 71 is provided with a strip-shaped opening 72, a plurality of short reinforcing ribs 74 are welded in each strip-shaped opening 72, concrete in the pier is embedded into the strip-shaped opening 72 and meshed with the short reinforcing ribs 74 into a whole in the process that the steel plates 71 are embedded into the pier, the steel plates 71 can be embedded into the pier more firmly, and the connection firmness of the embedded part 7 and the pier is further improved.

Further, the circular rubber gasket 32 is fixedly assembled at the bottom of each limit groove 31, when the vibration pressure is applied to the vibration structure, the limit cover 3 moves downwards, the depth of the positioning column 6 inserted into the limit groove 31 is increased, when the top end of the positioning column 6 collides with the bottom of the limit groove 31, the impact force can be buffered by the circular rubber gasket 32, the positioning column 6 can be prevented from being excessively impacted to deform, and the protection effect on the positioning column 6 is effectively improved.

In the embodiment, the bottom plate 1 is firmly arranged at the top of the bridge pier through the embedded part 7, and after the connecting steel column 4 is firmly connected with the bridge deck, the limiting cover 3, the built-in limiting frame 2 and the bottom plate 1 can be stably arranged at the connecting part of the bridge deck and the bridge pier; when the bridge is vibrated, the pressure generated by bridge deck shake can be applied to the limiting cover 3, then the limiting cover 3 can be moved downwards, at the moment, the multilayer rubber backing plate 5 is extruded to deform, the thickness of the multilayer rubber backing plate is reduced and the multilayer rubber backing plate is diffused to the periphery, if the pressure generated by vibration is overlarge, the expansion range of the multilayer rubber backing plate 5 can be increased, in order to prevent serious damage to the expansion, the expansion range of the multilayer rubber backing plate 5 can be limited by the limiting cover 3 and the built-in limiting frame 2, the damage probability is reduced, the service life of the multilayer rubber backing plate 5 is prolonged, and the durability of the damping structure can be improved.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. Bridge shock-absorbing structure, including bottom plate (1), its characterized in that: the utility model discloses a novel embedded part structure of floor board, including bottom plate (1), built-in limit frame (2) are installed to the last fixed surface of bottom plate (1), the top movable sleeve of built-in limit frame (2) is equipped with spacing cover (3), the top fixed mounting of bottom plate (1) has four at least connection steel columns (4), a plurality of joint movement cover is equipped with multilayer rubber backing plate (5) on connecting steel column (4), multilayer rubber backing plate (5) are located spacing cover (3) and built-in limit frame (2) inside, every the top of connecting steel column (4) all extends to the top of spacing cover (3), the lower fixed surface of bottom plate (1) installs built-in fitting (7).

2. The bridge shock absorbing structure according to claim 1, wherein at least four positioning columns (6) are fixedly arranged at the top end of the bottom plate (1), at least four limiting grooves (31) with openings at the bottom ends are cut on the limiting cover (3), and the top end of each positioning column (6) is inserted into the corresponding limiting groove (31) and movably connected with the corresponding limiting groove.

3. A bridge shock absorbing structure according to claim 2, wherein circular rubber gaskets (32) are fixedly mounted on the inner top wall of each limit groove (31), and each circular rubber gasket (32) is located above the matched locating column (6).

4. The bridge shock-absorbing structure according to claim 1, wherein each connecting steel column (4) penetrates through a round through groove cut in the multilayer rubber backing plate (5) and is movably connected with the same, and an embedded steel sheet (41) is fixedly arranged at the top end of each connecting steel column (4).

5. A bridge shock absorbing structure according to claim 1, wherein the top plate of the limiting cover (3) is provided with at least four circular openings, and each connecting steel column (4) passes through and is movably connected with the corresponding circular opening.

6. The bridge shock absorbing structure according to claim 1, wherein the embedded part (7) comprises two steel plates (71), each steel plate (71) is fixedly arranged on the lower surface of the bottom plate (1), and a plurality of long reinforcing ribs (73) are fixedly arranged between the two steel plates (71).

7. A bridge shock absorbing structure according to claim 6, wherein a plurality of elongated openings (72) are cut into each steel plate (71), and a plurality of short reinforcing ribs (74) are fixedly arranged in each elongated opening (72).