CN113235395A - Shock-absorbing support based on road and bridge stability and mounting method thereof - Google Patents
Shock-absorbing support based on road and bridge stability and mounting method thereof Download PDFInfo
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- CN113235395A CN113235395A CN202110563586.2A CN202110563586A CN113235395A CN 113235395 A CN113235395 A CN 113235395A CN 202110563586 A CN202110563586 A CN 202110563586A CN 113235395 A CN113235395 A CN 113235395A
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- movable plate
- road
- damping
- bridge
- plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a shock-absorbing support based on road and bridge stability, which comprises a bottom plate and a top plate positioned above the bottom plate, wherein a shock-absorbing mechanism is arranged between the bottom plate and the top plate; the damping mechanism comprises a lower displacement damping component which transversely slides with the upper surface of the bottom plate, an upper displacement damping component which is positioned on the upper surface of the lower displacement damping component and longitudinally slides with the upper surface of the lower displacement damping component, and a supporting damping mechanism which is positioned on the upper surface of the upper displacement damping component and longitudinally slides with the upper surface of the upper displacement damping component.
Description
Technical Field
The invention relates to the technical field of road and bridge damping, in particular to a shock-absorbing support based on road and bridge stability and an installation method thereof.
Background
With the continuous development of the traffic construction business of China, newly-built highway bridges are more and more, due to the influence of objective conditions such as geological features and the like, the impact of possible geological disasters on the highway bridges needs to be considered during construction of the highway bridges, the geological disasters including earthquakes and the like have the characteristics of diversity, complexity, high harmfulness and the like, once the geological disasters, particularly earthquakes, happen, the highway bridges are tested to be the most severe for safety and stability, and therefore in the construction process of the highway bridges, shock-absorbing supports need to be additionally arranged, the vibration of the bridges is reduced, the stability of the bridges is guaranteed as far as possible when unexpected impact force and geological disasters happen, and the safety of the bridges is improved.
The existing shock-absorbing bridge support is mainly formed by pouring cement, is simple in structure, is directly damped in the vertical direction, is inconvenient for supporting the bridge at multiple angles, and greatly influences the stability of the shock-absorbing bridge support during use.
Disclosure of Invention
The invention aims to provide a shock-absorbing support based on road and bridge stability and an installation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a shock-absorbing support based on road and bridge stability comprises a bottom plate and a top plate positioned above the bottom plate, wherein a shock-absorbing mechanism is arranged between the bottom plate and the top plate;
the damping mechanism comprises a lower displacement damping component which slides transversely with the upper surface of the bottom plate, an upper displacement damping component which is positioned on the upper surface of the lower displacement damping component and slides longitudinally with the upper surface of the lower displacement damping component, and a supporting damping mechanism which is positioned on the upper surface of the upper displacement damping component and slides longitudinally with the upper surface of the upper displacement damping component.
As a further scheme of the invention: the lower displacement damping assembly comprises a third movable plate and a fourth movable plate which is distributed opposite to the third movable plate, the upper displacement damping assembly comprises a first movable plate and a second movable plate which is distributed opposite to the first movable plate, the relative direction of the first movable plate and the second movable plate is vertical to the relative direction of the third movable plate and the fourth movable plate, and elastic pressing mechanisms are arranged between the first movable plate and the second movable plate and between the third movable plate and the fourth movable plate.
As a still further scheme of the invention: the elastic extrusion mechanism comprises a piston cylinder, a first cavity and a second cavity are respectively arranged in the middle of the opposite side of a fourth movable plate and a third movable plate, the piston cylinder is located in the first cavity and the second cavity, one end of the piston cylinder is connected with a piston rod in a sliding mode, a damping block is arranged at the end portion of the piston rod, a sliding cavity used for sliding of the piston rod is arranged in the third movable plate, a first damping cavity is arranged on one side, away from the second cavity, of the sliding cavity, the damping block is located in the first damping cavity and is connected with the inner wall of the first damping cavity in a sliding mode, a reset spring is arranged on one end, away from the damping block, of the piston rod, one side of the reset spring is located in the inner cavity of the piston cylinder, and the other side of the reset spring is fixedly connected with the inner wall of the first cavity.
As a still further scheme of the invention: support damper includes the bottom suspension fagging and is located the last backup pad of bottom suspension fagging top, the middle part is provided with supporting spring between bottom suspension fagging and the last backup pad, just the bottom suspension fagging upper surface all is provided with the second damping chamber around being located supporting spring, the bottom of going up the backup pad is provided with four damping posts that distribute with second damping chamber one-to-one, damping post and second damping chamber sliding connection.
As a still further scheme of the invention: the bottom of the top plate is provided with four extrusion plates which are distributed in one-to-one correspondence with the first movable plate, the second movable plate, the third movable plate and the fourth movable plate, and the bottom of each extrusion plate is provided with a second inclined plane matched with the first inclined plane.
As a still further scheme of the invention: the upper surface of the bottom plate is provided with two T-shaped second sliding grooves which are transversely distributed, and the bottoms of the third movable plate and the fourth movable plate are provided with two T-shaped second sliding blocks which are in sliding connection with the second sliding grooves.
As a still further scheme of the invention: first fly leaf and second fly leaf upper surface all are provided with two longitudinal distribution's first spout, the bottom of bottom suspension fagging is provided with the first slider with first spout sliding connection, the top of going up the backup pad and the bottom fixed connection of roof.
As a still further scheme of the invention: the first movable plate, the second movable plate, the third movable plate and the fourth movable plate are all polytetrafluoroethylene plates.
As a still further scheme of the invention: the side edges around the bottom plate and the top plate are provided with fixing holes distributed at equal intervals.
The invention also relates to an installation method of the shock-absorbing support based on the road and bridge stability performance, which comprises the following steps:
s101, installing a jacking device at the upper end of a bridge pier of the road bridge, and jacking the road bridge by using the jacking device to enable a gap to be reserved between the bottom of the road bridge and the bridge pier;
s201, placing the shock-absorbing support between a pier and a road bridge, and fixedly connecting a bottom plate with the pier and the road bridge;
s301, disassembling the jacking device, and descending the road bridge to enable the gravity of the road bridge to act on the shock absorbing platform.
Compared with the prior art, the invention has the beneficial effects that:
the shock absorption support generates shock absorption in the vertical direction under the action of the supporting spring, the damping column and the second damping cavity, in the process, the road and the bridge also move downwards continuously, so that the extrusion plate moves downwards, the second inclined surface of the extrusion plate extrudes the first inclined surfaces on the four corresponding movable plates, the four movable plates move towards the middle, the four movable plates are buffered under the action of the reset spring, the piston cylinder, the piston rod, the damping block and the first damping cavity, the shock generated by the road and the bridge is converted in the displacement direction, when the shock disappears, the rigidity and the self-resetting capability are provided for the reciprocating motion of the shock absorption support under the action of an earthquake, the residual displacement of the support after the earthquake is reduced, the four movable plates are all restored to the original position, and the shock absorption support has vertical tensile shock absorption, The high-performance self-resetting and energy-consuming device has the advantages that the high-performance self-resetting and energy-consuming capability is high, in addition, the sliding of the lower displacement damping assembly and the upper displacement damping assembly is facilitated through the arranged polytetrafluoroethylene plate, the energy consumption can be reduced through friction while the sliding is carried out, the dislocation of the upper part and the lower part of the support is decoupled into the partial motion of respective pistons, the energy consumption of the support at any angle in the horizontal direction is realized, and the shock absorption effect is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a shock mount based on road and bridge stability.
Fig. 2 is an exploded view of a suspension mount based on road and bridge stability performance.
FIG. 3 is an exploded view of a lower middle displacement shock absorber assembly and an upper displacement shock absorber assembly of a shock mount based on road and bridge stability performance.
Fig. 4 is a front view of a shock mount based on road and bridge stability.
FIG. 5 is a schematic structural view of a top plate in a shock mount based on road and bridge stability.
FIG. 6 is a schematic structural diagram of a supporting damping mechanism in a suspension support based on the stability of roads and bridges.
FIG. 7 is a schematic structural diagram of a supporting damping mechanism in a suspension support based on the stability of roads and bridges.
In the figure: 1. a base plate; 2. a top plate; 3. a damping mechanism; 4. a lower displacement shock absorbing assembly; 5. an upper displacement shock absorbing assembly; 6. supporting the damping mechanism; 7. a first chute; 8. a second chute; 9. a first slider; 10. a first movable plate; 11. a second movable plate; 12. a third movable plate; 13. a fourth movable plate; 14. a second slider; 15. a first cavity; 16. a second cavity; 17. a return spring; 18. a piston cylinder; 19. a piston rod; 20. a damping block; 21. a first inclined surface; 22. a first damper chamber; 23. a pressing plate; 24. a second inclined surface; 25. a lower support plate; 26. an upper support plate; 27. a support spring; 28. a second damper chamber; 29. a damping post.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, in an embodiment of the present invention, a shock absorbing support based on road and bridge stability performance includes a bottom plate 1 and a top plate 2 located above the bottom plate 1, wherein a shock absorbing mechanism 3 is disposed between the bottom plate 1 and the top plate 2; the damping mechanism 3 comprises a lower displacement damping component 4 sliding transversely with the upper surface of the bottom plate 1, an upper displacement damping component 5 located on the upper surface of the lower displacement damping component 4 and sliding longitudinally with the upper surface of the lower displacement damping component 4, and a supporting damping mechanism 6 located on the upper surface of the upper displacement damping component 5 and sliding longitudinally with the upper surface of the upper displacement damping component 5.
The lower displacement damping assembly 4 includes a third movable plate 12 and a fourth movable plate 13 distributed opposite to the third movable plate 12, the upper displacement damping assembly 5 includes a first movable plate 10 and a second movable plate 11 distributed opposite to the first movable plate 10, a relative direction of the first movable plate 10 and the second movable plate 11 is perpendicular to a relative direction of the third movable plate 12 and the fourth movable plate 13, and elastic pressing mechanisms are disposed between the first movable plate 10 and the second movable plate 11 and between the third movable plate 12 and the fourth movable plate 13.
The elastic extrusion mechanism comprises a piston cylinder 18, a first cavity 15 and a second cavity 16 are respectively arranged in the middle of one opposite side of a fourth movable plate 13 and a third movable plate 12, the piston cylinder 18 is located in the first cavity 15 and the second cavity 16, one end of the piston cylinder 18 is slidably connected with a piston rod 19, a damping block 20 is arranged at the end of the piston rod 19, a sliding cavity used for sliding the piston rod 19 is arranged in the third movable plate 12, a first damping cavity 22 is arranged on one side, away from the second cavity 16, of the sliding cavity, the damping block 20 is located in the first damping cavity 22 and is slidably connected with the inner wall of the first damping cavity 22, a reset spring 17 is arranged on one end, away from the damping block 20, of the piston rod 19, and one side of the reset spring 17 is located in the inner cavity of the piston cylinder 18, and the other side of the reset spring is fixedly connected with the inner wall of the first cavity 15.
The outer sides of the first movable plate 10, the second movable plate 11, the third movable plate 12 and the fourth movable plate 13 are all provided with first inclined planes 21, the bottom of the top plate 2 is provided with four pressing plates 23 which are distributed in one-to-one correspondence with the first movable plate 10, the second movable plate 11, the third movable plate 12 and the fourth movable plate 13, and the bottom of the pressing plate 23 is provided with second inclined planes 24 matched with the first inclined planes 21.
The upper surface of the bottom plate 1 is provided with two laterally distributed T-shaped second sliding grooves 8, and the bottoms of the third movable plate 12 and the fourth movable plate 13 are provided with two T-shaped second sliding blocks 14 slidably connected with the second sliding grooves 8.
The upper surfaces of the first movable plate 10 and the second movable plate 11 are both provided with two first sliding grooves 7 which are longitudinally distributed, the bottom of the lower supporting plate 25 is provided with a first sliding block 9 which is connected with the first sliding grooves 7 in a sliding manner, and the top end of the upper supporting plate 26 is fixedly connected with the bottom of the top plate 2.
The first movable plate 10, the second movable plate 11, the third movable plate 12 and the fourth movable plate 13 are all made of teflon.
The side edges around the bottom plate 1 and the top plate 2 are provided with fixing holes distributed at equal intervals.
The invention also relates to an installation method of the shock-absorbing support based on the road and bridge stability performance, which comprises the following steps:
s101, installing a jacking device at the upper end of a bridge pier of the road bridge, and jacking the road bridge by using the jacking device to enable a gap to be reserved between the bottom of the road bridge and the bridge pier;
s201, placing the shock-absorbing support between a pier and a road bridge, and fixedly connecting the bottom plate 1 with the pier and the road bridge;
s301, disassembling the jacking device, and descending the road bridge to enable the gravity of the road bridge to act on the shock absorbing platform.
The working principle of the invention is as follows:
when vibration occurs, the road and bridge can generate vibration, so that the road and bridge can generate pressure on the top plate 2, firstly, under the action of the supporting spring 27, the damping column 29 and the second damping cavity 28, the road and bridge can generate shock absorption in the vertical direction, and in the process, the road and bridge can continuously move downwards, so that the extrusion plate 23 moves downwards, so that the second inclined surface 24 of the extrusion plate 23 can extrude the first inclined surfaces 21 on the four corresponding movable plates, so that the four movable plates all move towards the middle, and under the action of the return spring 17, the piston cylinder 18, the piston rod 19, the damping block 20 and the first damping cavity 22, the four movable plates are buffered, so that the vibration generated by the road and bridge is converted in the displacement direction, when the vibration disappears, under the return action of the return spring 17, rigidity and self-resetting capability are provided for the reciprocating motion of the seismic isolation support under the action of the seismic, the residual displacement of the support after the earthquake is reduced, four movable plates are all restored to the original positions, the earthquake-proof support is enabled to have vertical tensile shock absorption, self-reset and high performance in energy consumption capacity, in addition, through the arranged polytetrafluoroethylene plates, sliding of the lower displacement shock absorption assembly 4 and the upper displacement shock absorption assembly 5 is facilitated, energy consumption can be achieved through friction while sliding, the dislocation of the upper portion and the lower portion of the support is decoupled into partial motion of respective pistons, energy consumption and shock isolation of the support at any angle in the horizontal direction are achieved, and the shock absorption effect is greatly improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A shock-absorbing support based on road and bridge stability comprises a bottom plate (1) and a top plate (2) positioned above the bottom plate (1), and is characterized in that a shock-absorbing mechanism (3) is arranged between the bottom plate (1) and the top plate (2);
the damping mechanism (3) comprises a lower displacement damping component (4) which transversely slides on the upper surface of the bottom plate (1), an upper displacement damping component (5) which is positioned on the upper surface of the lower displacement damping component (4) and longitudinally slides on the upper surface of the lower displacement damping component (4), and a supporting damping mechanism (6) which is positioned on the upper surface of the upper displacement damping component (5) and longitudinally slides on the upper surface of the upper displacement damping component (5).
2. The shock mount based on road and bridge stability performance as claimed in claim 1, wherein the lower displacement shock-absorbing assembly (4) comprises a third movable plate (12) and a fourth movable plate (13) distributed opposite to the third movable plate (12), the upper displacement shock-absorbing assembly (5) comprises a first movable plate (10) and a second movable plate (11) distributed opposite to the first movable plate (10), the relative direction between the first movable plate (10) and the second movable plate (11) is perpendicular to the relative direction between the third movable plate (12) and the fourth movable plate (13), and elastic pressing mechanisms are disposed between the first movable plate (10) and the second movable plate (11) and between the third movable plate (12) and the fourth movable plate (13).
3. The shock-absorbing support based on road and bridge stability according to claim 2, wherein the elastic extrusion mechanism comprises a piston cylinder (18), the middle portion of one side of the fourth movable plate (13) opposite to the third movable plate (12) is respectively provided with a first cavity (15) and a second cavity (16), the piston cylinder (18) is located in the first cavity (15) and the second cavity (16), one end of the piston cylinder (18) is slidably connected with a piston rod (19), the end of the piston rod (19) is provided with a damping block (20), the third movable plate (12) is internally provided with a sliding cavity for sliding the piston rod (19), one side of the sliding cavity far away from the second cavity (16) is provided with a first damping cavity (22), and the damping block (20) is located in the first damping cavity (22) and is slidably connected with the inner wall of the first damping cavity (22), and one end of the piston rod (19), which is far away from the damping block (20), is provided with a return spring (17), one side of the return spring (17) is positioned in the inner cavity of the piston cylinder (18), and the other side of the return spring is fixedly connected with the inner wall of the first cavity (15).
4. The shock mount based on road and bridge stability ability of claim 1, characterized in that, support damper (6) includes bottom suspension fagging (25) and last backup pad (26) that is located bottom suspension fagging (25) top, the middle part is provided with supporting spring (27) between bottom suspension fagging (25) and last backup pad (26), just bottom suspension fagging (25) upper surface all is provided with second damping chamber (28) around supporting spring (27), the bottom of going up backup pad (26) is provided with four damping columns (29) that distribute with second damping chamber (28) one-to-one, damping column (29) and second damping chamber (28) sliding connection.
5. The shock absorbing support based on the road and bridge stability performance as claimed in claim 2, wherein the first inclined plane (21) is disposed on one side of the outer side of the first movable plate (10), the second movable plate (11), the third movable plate (12) and the fourth movable plate (13), the four pressing plates (23) are disposed at the bottom of the top plate (2) and are distributed in one-to-one correspondence with the first movable plate (10), the second movable plate (11), the third movable plate (12) and the fourth movable plate (13), and the second inclined plane (24) matched with the first inclined plane (21) is disposed at the bottom of the pressing plate (23).
6. The shock-absorbing support based on the road and bridge stability performance as claimed in claim 2, wherein the upper surface of the bottom plate (1) is provided with two laterally distributed T-shaped second sliding grooves (8), and the bottoms of the third movable plate (12) and the fourth movable plate (13) are provided with two T-shaped second sliding blocks (14) slidably connected with the second sliding grooves (8).
7. The shock mount based on road and bridge stability ability according to claim 4, wherein the first movable plate (10) and the second movable plate (11) are provided with two first sliding grooves (7) longitudinally distributed on the upper surface, the bottom of the lower support plate (25) is provided with a first sliding block (9) slidably connected with the first sliding grooves (7), and the top of the upper support plate (26) is fixedly connected with the bottom of the top plate (2).
8. The shock mount based on road and bridge stability performance as claimed in claim 2, wherein the first movable plate (10), the second movable plate (11), the third movable plate (12) and the fourth movable plate (13) are all made of teflon plates.
9. The shock absorbing support base based on the road and bridge stability performance as claimed in claim 2, wherein the peripheral sides of the bottom plate (1) and the top plate (2) are provided with fixing holes distributed at equal intervals.
10. A mounting method of a shock-absorbing support based on road and bridge stability is characterized by comprising the following steps:
s101, installing a jacking device at the upper end of a bridge pier of the road bridge, and jacking the road bridge by using the jacking device to enable a gap to be reserved between the bottom of the road bridge and the bridge pier;
s201, placing the shock-absorbing support between a pier and a road bridge, and fixedly connecting the bottom plate (1) with the pier and the road bridge;
s301, disassembling the jacking device, and descending the road bridge to enable the gravity of the road bridge to act on the shock absorbing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563586.2A CN113235395A (en) | 2021-05-24 | 2021-05-24 | Shock-absorbing support based on road and bridge stability and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563586.2A CN113235395A (en) | 2021-05-24 | 2021-05-24 | Shock-absorbing support based on road and bridge stability and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113235395A true CN113235395A (en) | 2021-08-10 |
Family
ID=77138283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110563586.2A Withdrawn CN113235395A (en) | 2021-05-24 | 2021-05-24 | Shock-absorbing support based on road and bridge stability and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113235395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115976986A (en) * | 2023-01-04 | 2023-04-18 | 新景建设有限公司 | Anti-seismic protection structure for historic building bridge and installation method |
-
2021
- 2021-05-24 CN CN202110563586.2A patent/CN113235395A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115976986A (en) * | 2023-01-04 | 2023-04-18 | 新景建设有限公司 | Anti-seismic protection structure for historic building bridge and installation method |
| CN115976986B (en) * | 2023-01-04 | 2023-09-15 | 新景建设有限公司 | Anti-seismic protection structure for ancient building bridge and installation method |
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Application publication date: 20210810 |