CN212077610U - Bridge shock attenuation expansion joint device of easy change - Google Patents
Bridge shock attenuation expansion joint device of easy change Download PDFInfo
- Publication number
- CN212077610U CN212077610U CN202020025971.2U CN202020025971U CN212077610U CN 212077610 U CN212077610 U CN 212077610U CN 202020025971 U CN202020025971 U CN 202020025971U CN 212077610 U CN212077610 U CN 212077610U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- bridge
- concrete pavement
- pavement layer
- water stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to the technical field of bridges, in particular to an easily-replaced bridge damping expansion joint device, which comprises a concrete pavement layer arranged on a bridge floor, a reinforcing mesh, a bridge expansion joint, a threaded steel pipe and an anchoring bolt, wherein the inner wall of the threaded steel pipe is provided with an internal thread matched with the external thread on the anchoring bolt; the upper surface of the concrete pavement layer is sequentially paved with a rubber water stop, a damping rubber belt and a steel plate, and the rubber water stop and the damping rubber belt are provided with through holes for the screws of the anchoring bolts to pass through; the steel plate is provided with a countersunk through hole for inserting a nut at the top of the anchor bolt, and the countersunk through hole is communicated with the through hole. The utility model discloses can satisfy the waterproof requirement of bridge and realize convenient and fast's the expansion joint that has damaged on the existing bridge of change, only need demolish the bolt during the operation of actual change, each structure accomplishes the simple and easy change of this patent bridge expansion joint device in the replacement device in proper order.
Description
Technical Field
The utility model relates to a bridge technical field especially relates to an easy bridge shock attenuation expansion joint device of changing.
Background
Bridge expansion joints are an indispensable structure of the existing bridge, and can directly influence the service quality and the driving comfort of the bridge and prolong the service life of the bridge. Its main function is to accommodate superstructure displacements caused by temperature changes, environmental characteristics of vehicle loading, and physical properties of building materials. And the waterproof performance is required to be realized, so that rainwater and accumulated water on the road surface are prevented from flowing into the end part of the beam body. From the aspect of bridges constructed in China, the damage rate of the bridge expansion joints accounts for a certain proportion. Because its setting is at the weak position of beam-ends structure, when the vehicle passes through the expansion joint, can produce frequent impact action to the transition region concrete, vehicle impact load effect causes the main reason of expansion joint both sides concrete along longitudinal cracking. Secondly, because the expansion joint is directly exposed in the natural environment and is very easy to be damaged, researchers count that the service life of the expansion joint is generally less than 10 years and is far less than the designed service life of the bridge. Various diseases are easy to occur to the bridge expansion joint due to various reasons, so that the maintenance workload and the maintenance difficulty of management departments are increased, and great inconvenience is brought to traffic and transportation.
Aiming at the damaged bridge expansion joint, the solution is mainly to repair and replace the damaged bridge expansion joint in time. The existing most of bridge expansion joints are mainly maintained and replaced by the following steps: chiseling out concrete, removing the original expansion joint, cleaning a notch, arranging the embedded ribs, planting the ribs, welding to install a new expansion joint, and then pouring concrete. In conclusion, the bridge expansion joints are more in maintenance and replacement, high in construction difficulty and long in construction period, and great inconvenience is brought to urban traffic. More importantly, the problem can not be solved fundamentally when the expansion joint is maintained, and the maintenance period is long, so that traffic stagnation is caused. The replacement of most expansion joints is also a difficult point, so that great requirements are provided for the easy replacement of the expansion joints of the bridge.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an easy bridge shock attenuation expansion joint device of changing, only need demolish the bolt when actual maintenance and change operation, each structure realizes this patent bridge expansion joint device's simple and easy change in the replacement device in proper order.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model discloses an easy-to-replace bridge damping expansion joint device, which comprises a concrete pavement layer arranged on a bridge floor, a reinforcing mesh arranged in the concrete pavement layer, a bridge expansion joint arranged in the middle of the concrete pavement layer, a threaded steel pipe and an anchoring bolt,
the threaded steel pipe is arranged on the concrete pavement layer along the vertical direction, the threaded steel pipe is of a hollow cylindrical structure with an opening at the top, and internal threads matched with the external threads on the anchoring bolt are arranged on the inner wall of the threaded steel pipe;
the upper surface of the concrete pavement layer is sequentially paved with a rubber water stop, a damping rubber belt and a steel plate, and the rubber water stop and the damping rubber belt are provided with through holes for the screws of the anchoring bolts to pass through; the steel plate is provided with a countersunk through hole for inserting a nut at the top of the anchor bolt, and the countersunk through hole is communicated with the through hole.
The threaded steel pipe is arranged between meshes of the reinforcing mesh.
And expansion joint water stops connected with the rubber water stops on the upper surface of the concrete pavement layer on the two sides of the bridge expansion joint are arranged between the bridge expansion joints.
The length of the expansion joint water stop is greater than the width of the bridge expansion joint.
And a rubber gasket is arranged at the bottom of the countersunk head through hole on the steel plate.
And asphalt concrete pavement layers are arranged on two sides of the top of the concrete pavement layer, and the thickness of each asphalt concrete pavement layer is equal to the sum of the thicknesses of the rubber water stop, the damping rubber belt and the steel plate.
The beneficial effects of the utility model reside in that:
1. the utility model is detachably connected between the steel plate, the damping rubber belt and the rubber water stop belt through the anchoring bolt and the threaded steel pipe; during installation, the reserved anchoring system is of a threaded steel pipe structure, so that construction operation is simpler; when the rubber water stop belt is disassembled and replaced, only the anchoring bolts need to be taken off, then the structures are replaced in sequence according to requirements, and the anchoring bolts are screwed again after the replacement is completed, so that the rubber water stop belt, the damping rubber belt, the steel plate and other device structures can be conveniently maintained and replaced by workers, the maintenance and replacement difficulty is reduced, and the maintenance and replacement efficiency is improved; the influence of replacing the bridge expansion joint device on traffic is reduced.
2. The utility model is provided with the expansion joint water stop between the bridge expansion joints, which can prevent rainwater and sewage from entering the bridge expansion joints to corrode and destroy the bridge structure, thus prolonging the service life of the bridge;
3. the utility model is provided with the damping rubber belt below the steel plate and above the rubber water stop belt, which can reduce the vibration of the vehicle when the vehicle passes by, so that the vehicle can more gently drive across the expansion joint, thereby improving the driving comfort level;
4. the utility model has the advantages that the steel plate is arranged to play a role in connection with the basic anchoring system; on the one hand, the damping rubber belt below can be protected from being damaged by corrosion and the like, the service life of the damping rubber belt is prolonged, and the service life of the bridge expansion joint device is prolonged.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention;
fig. 2 is a transverse cross-sectional view of the present invention;
fig. 3 is a plan view of the present invention;
fig. 4 is the utility model discloses a threaded steel pipe construction drawing.
In the figure: the concrete expansion joint comprises 1 threaded steel pipe, 2 anchoring bolts, 21 screws, 22 nuts, 3 rubber water stops, 4 damping rubber belts, 5 steel plates, 6 rubber gaskets, 7 bridge expansion joints, 8 reinforcing mesh, 9 concrete pavement layers, 10 asphalt concrete pavement layers and 11 expansion joint water stops.
Detailed Description
The following further description of the present invention:
referring to figures 1-4 of the drawings,
the utility model discloses an easy-to-replace bridge damping expansion joint device, which comprises a concrete pavement layer 9 arranged on a bridge floor, a reinforcing mesh 8 arranged in the concrete pavement layer 9, a bridge expansion joint 7 arranged in the middle of the concrete pavement layer 9, a threaded steel pipe 1 and an anchor bolt 2,
the threaded steel pipe 1 is arranged on the concrete pavement layer 9 along the vertical direction, the threaded steel pipe 1 is of a hollow cylindrical structure with an opening at the top, and the inner wall of the threaded steel pipe is provided with an internal thread matched with the external thread on the anchoring bolt 2;
the upper surface of the concrete pavement layer 9 is sequentially paved with a rubber water stop 3, a damping rubber belt 4 and a steel plate 5, and the rubber water stop 3 and the damping rubber belt 4 are provided with through holes for the screw 21 of the anchor bolt 2 to pass through; the steel plate 5 is provided with a countersunk through hole for inserting the nut 22 at the top of the anchor bolt 2, the countersunk through hole is communicated with the through hole, and the damping rubber belt 4 is arranged below the steel plate 5 and above the rubber water stop 3, so that the vibration of a vehicle can be reduced when the vehicle passes through, the vehicle can smoothly run through the expansion joint, and the driving comfort level is improved; the steel plate 5 is arranged to play a role in connection with a basic anchoring system; on one hand, the damping rubber belt 4 below the bridge expansion joint device can be protected from being damaged by corrosion and the like, the service life of the damping rubber belt 4 is prolonged, and the service life of the bridge expansion joint device is prolonged; the scheme is that the anchor bolt 2 and the threaded steel pipe 1 are detachably connected among a steel plate 5, a damping rubber belt 4 and a rubber water stop belt 3; during installation, the reserved anchoring system is of a threaded steel pipe 1 structure, so that construction operation is simpler; when the rubber water stop belt is disassembled and replaced, only the anchoring bolt 2 needs to be taken off, then the structures are replaced in sequence according to requirements, and the anchoring bolt 2 is screwed again after the replacement is completed, so that the structure can be convenient for workers to maintain and replace the rubber water stop belt 3, the damping rubber belt 4, the steel plate 5 and other device structures, the maintenance and replacement difficulty is reduced, and the maintenance and replacement efficiency is improved; the influence of replacing the bridge expansion joint device on traffic is reduced.
The threaded steel pipe 1 is arranged between meshes of the reinforcing mesh 8.
The expansion joint water stop belts 11 connected with the rubber water stop belts 3 on the upper surfaces of the concrete pavement layers 9 are arranged between the bridge expansion joints 7, and the expansion joint water stop belts 11 are arranged between the bridge expansion joints 7 to prevent rainwater and sewage from entering the bridge expansion joints 7 to corrode and damage the bridge structure, so that the service life of the bridge is prolonged.
The length of the expansion joint water stop 11 is larger than the width of the bridge expansion joint 7, so that the expansion joint water stop 11 cannot be damaged when the bridge expansion joint 7 expands and contracts.
The rubber washer 6 is arranged at the bottom of the countersunk head through hole in the steel plate 5, so that the damage caused by the easy fatigue of the anchor bolt 2 due to the mutual friction between the steel plate 5 and the anchor bolt 2 during driving is reduced.
And asphalt concrete pavement layers 10 are arranged on two sides of the top of the concrete pavement layer 9, and the thickness of each asphalt concrete pavement layer is equal to the sum of the thicknesses of the rubber water stop 3, the damping rubber belt 4 and the steel plate 5.
The installation process comprises the following steps: firstly, positioning and placing the threaded steel pipe 1 in the mesh opening of the reinforcing mesh 8, and filling foam substances in the threaded steel pipe 1 in advance to construct a concrete pavement layer 9 in order to prevent the threaded steel pipe 1 from being blocked when concrete is poured; after the concrete is poured and molded to reach certain strength, a layer of geotextile is laid in the groove 7 of the bridge expansion joint, and then the asphalt concrete pavement layer 10 of the whole bridge is paved; after the asphalt concrete pavement layer 10 is formed to reach the strength, the asphalt concrete at the opening of the expansion joint is cut off according to the reserved size, the geotextile is taken away, the foam in the threaded steel pipe 1 is cleaned, and then the structures of the device are laid in sequence, and the installation is completed. In conclusion, the first installation process is simple to operate and easy to implement. When the device is detached and replaced, only the bolts need to be taken off, then the structures are replaced in sequence according to requirements, and the bolts are screwed again after the replacement is completed, so that the structure can be convenient for workers to maintain and replace the device structures such as the rubber water stop belt 3, the damping rubber belt 4, the steel plate 5 and the like, the maintenance and replacement difficulty is reduced, the maintenance and replacement efficiency is improved, and the inconvenience brought to traffic during the replacement of the bridge expansion joint device is reduced.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides an easy bridge shock attenuation expansion joint device of changing which characterized in that: comprises a concrete pavement layer (9) arranged on a bridge floor, a reinforcing mesh (8) arranged in the concrete pavement layer (9), a bridge expansion joint (7) arranged in the middle of the concrete pavement layer (9), a threaded steel pipe (1) and an anchoring bolt (2),
the threaded steel pipe (1) is arranged on the concrete pavement layer (9) along the vertical direction, the threaded steel pipe (1) is of a hollow cylindrical structure with an open top, and internal threads matched with external threads on the anchoring bolt (2) are arranged on the inner wall of the threaded steel pipe;
the upper surface of the concrete pavement layer (9) is sequentially paved with a rubber water stop (3), a damping rubber belt (4) and a steel plate (5), and the rubber water stop (3) and the damping rubber belt (4) are provided with through holes for the screw rods (21) of the anchor bolts (2) to pass through; the steel plate (5) is provided with a countersunk through hole used for inserting a nut (22) at the top of the anchor bolt (2), and the countersunk through hole is communicated with the through hole.
2. The bridge shock absorption expansion joint device easy to replace of claim 1, wherein: the threaded steel pipe (1) is arranged between meshes of the reinforcing mesh (8).
3. The bridge shock absorption expansion joint device easy to replace of claim 2, wherein: and an expansion joint water stop (11) connected with the rubber water stop (3) on the upper surface of the concrete pavement layer (9) on the two sides of the expansion joint (7) of the bridge is arranged between the expansion joints.
4. The bridge shock absorption expansion joint assembly easy to replace of claim 3, wherein: the length of the expansion joint water stop (11) is greater than the width of the bridge expansion joint (7).
5. The bridge shock absorption expansion joint assembly easy to replace of claim 4, wherein: and a rubber gasket (6) is arranged at the bottom of the countersunk through hole on the steel plate (5).
6. The bridge shock absorption expansion joint assembly easy to replace of claim 5, wherein: and asphalt concrete pavement layers (10) are arranged on two sides of the top of the concrete pavement layer (9), and the thickness of each asphalt concrete pavement layer is equal to the sum of the thicknesses of the rubber water stop belts (3), the damping rubber belts (4) and the steel plates (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020025971.2U CN212077610U (en) | 2020-01-07 | 2020-01-07 | Bridge shock attenuation expansion joint device of easy change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020025971.2U CN212077610U (en) | 2020-01-07 | 2020-01-07 | Bridge shock attenuation expansion joint device of easy change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212077610U true CN212077610U (en) | 2020-12-04 |
Family
ID=73566219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020025971.2U Expired - Fee Related CN212077610U (en) | 2020-01-07 | 2020-01-07 | Bridge shock attenuation expansion joint device of easy change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212077610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074763A (en) * | 2020-01-07 | 2020-04-28 | 南昌大学 | Bridge shock attenuation expansion joint device of easy change |
-
2020
- 2020-01-07 CN CN202020025971.2U patent/CN212077610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074763A (en) * | 2020-01-07 | 2020-04-28 | 南昌大学 | Bridge shock attenuation expansion joint device of easy change |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111074763A (en) | Bridge shock attenuation expansion joint device of easy change | |
| KR100798654B1 (en) | Expansion joint with hybrid system and construction method | |
| CN108547195B (en) | Drainage asphalt pavement structure and construction method | |
| CN212077610U (en) | Bridge shock attenuation expansion joint device of easy change | |
| CN111608093B (en) | Shear-resistant reinforcing method for hollow plate beam based on high-performance composite material | |
| CN210134336U (en) | Novel bridge expansion device capable of being quickly repaired | |
| CN210797241U (en) | Prestressed high-strength regenerated hybrid continuous rigid frame bridge system | |
| CN103510468A (en) | Non-concrete type bridge expansion joint device | |
| CN217869783U (en) | Fiber reinforcement modified emulsified asphalt pavement structure | |
| CN114370005B (en) | Construction method of long-life bridge deck pavement structure for preventing bridge deck cracks | |
| CN212801198U (en) | Removable novel bridge shock attenuation expansion joint | |
| CN214089628U (en) | Prefabricated road rail guard | |
| CN203603045U (en) | Novel reinforcing rubber strip bridge expansion joint structure | |
| CN209602904U (en) | A kind of steel plate turnover road surface | |
| CN107034759A (en) | Steel plate road pavement structure and construction method | |
| CN110029574B (en) | Bridge expansion device capable of being quickly repaired and installation method thereof | |
| CN209975293U (en) | Road bridge road bed reinforced structure | |
| CN218932854U (en) | Anti-loose structure for expansion joint of comb plate | |
| CN201817779U (en) | External transverse anchoring system for hollow plate bridge body | |
| CN1446981A (en) | Method for fast building roads and fabricated parts utilized | |
| CN116145495B (en) | Bridge tunnel pavement longitudinal crack reinforcing treatment structure and application method thereof | |
| CN112323655B (en) | Reinforcing method for changing simple support of existing hollow plate beam into continuous support | |
| CN219490663U (en) | Bridge road surface expansion joint structure | |
| CN220746566U (en) | Bridge expansion structure capable of modifying modulus type into comb teeth type | |
| CN212670251U (en) | Shear-resistant reinforcing structure for hollow plate girder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 Termination date: 20220107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |