CN111074763A - Bridge shock attenuation expansion joint device of easy change - Google Patents
Bridge shock attenuation expansion joint device of easy change Download PDFInfo
- Publication number
- CN111074763A CN111074763A CN202010014441.2A CN202010014441A CN111074763A CN 111074763 A CN111074763 A CN 111074763A CN 202010014441 A CN202010014441 A CN 202010014441A CN 111074763 A CN111074763 A CN 111074763A
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- China
- Prior art keywords
- expansion joint
- bridge
- concrete pavement
- pavement layer
- water stop
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- 230000035939 shock Effects 0.000 title claims description 8
- 230000008859 change Effects 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 238000013016 damping Methods 0.000 claims abstract description 28
- 238000004873 anchoring Methods 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000011384 asphalt concrete Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims 5
- 238000012423 maintenance Methods 0.000 description 11
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention 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 an 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 invention can meet the waterproof requirement of the bridge and realize convenient and quick replacement of the damaged expansion joint on the existing bridge, and the simple replacement of the bridge expansion joint device can be completed by only dismounting the bolt and sequentially replacing each structure in the device during actual replacement operation.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to an easily-replaced bridge damping expansion joint device.
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.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an easily-replaced bridge damping expansion joint device, and the simple replacement of the bridge expansion joint device is realized by only dismounting bolts and sequentially replacing all structures in the device during actual maintenance and replacement operation.
In order to realize the purpose of the invention, the invention adopts the technical scheme that:
the invention discloses an easily replaceable 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 the inner wall of the threaded steel pipe is provided with an internal thread matched with the external thread on the anchoring thread;
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 invention has the beneficial effects that:
1. the invention is detachably connected among 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 expansion joint water stop belt is arranged between the bridge expansion joints, so that rainwater and sewage can be prevented from entering the bridge expansion joints to corrode and damage the bridge structure, and the service life of the bridge is prolonged;
3. the damping rubber belts are arranged below the steel plate and above the rubber water stop belts, so that the vibration of the vehicle can be reduced when the vehicle passes by, the vehicle can smoothly run through the expansion joint, and the driving comfort level is improved;
4. the steel plate is arranged to play a role in connection with a 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 cross-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 a drawing showing the construction of a threaded steel pipe according to the present invention.
In the figure: the concrete expansion joint comprises 1 threaded steel pipe, 2 anchoring threads, 21 screw rods, 22 screw caps, 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 invention is further illustrated below:
referring to figures 1-4 of the drawings,
the invention discloses an easily replaceable 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 thread 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 bolt 1 needs to be taken off, then the structures are replaced in sequence according to requirements, and the bolt 1 is 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 description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the 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 the inner wall of the threaded steel pipe is provided with an internal thread matched with the external thread on the anchoring thread (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 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 |
|---|---|---|---|
| CN202010014441.2A CN111074763A (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 |
|---|---|---|---|
| CN202010014441.2A CN111074763A (en) | 2020-01-07 | 2020-01-07 | Bridge shock attenuation expansion joint device of easy change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111074763A true CN111074763A (en) | 2020-04-28 |
Family
ID=70322434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010014441.2A Pending CN111074763A (en) | 2020-01-07 | 2020-01-07 | Bridge shock attenuation expansion joint device of easy change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111074763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778879A (en) * | 2020-07-21 | 2020-10-16 | 深圳市和顺达建筑工程有限公司 | Municipal bridge repairing construction method |
| CN112538817A (en) * | 2020-12-14 | 2021-03-23 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint and construction process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030077683A (en) * | 2002-03-26 | 2003-10-04 | 금초건설주식회사 | The fabricated expansion joint and installation method without concrete-breaking |
| CN203904832U (en) * | 2014-07-01 | 2014-10-29 | 衡水恒力通工程橡胶有限公司 | Multifunctional rubber expansion and contraction device |
| CN205259058U (en) * | 2015-12-28 | 2016-05-25 | 衡水润鑫橡胶制品有限公司 | Bridge telescoping device convenient to change |
| CN207017148U (en) * | 2017-07-13 | 2018-02-16 | 杨桂萍 | A kind of novel bridge expansion joint |
| CN108149566A (en) * | 2018-01-30 | 2018-06-12 | 陕西省通达公路建设集团有限责任公司 | A kind of Highway Bridge Expansion Joint |
| CN208293413U (en) * | 2018-05-25 | 2018-12-28 | 齐文廷 | A kind of space multi-directional deflection comb teeth for bridge expanssion joint is board-like |
| CN109610309A (en) * | 2019-01-25 | 2019-04-12 | 北京市市政工程设计研究总院有限公司 | Assembled waterproof bridge expansion joint structure and construction method |
| CN212077610U (en) * | 2020-01-07 | 2020-12-04 | 南昌大学 | Bridge shock attenuation expansion joint device of easy change |
-
2020
- 2020-01-07 CN CN202010014441.2A patent/CN111074763A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030077683A (en) * | 2002-03-26 | 2003-10-04 | 금초건설주식회사 | The fabricated expansion joint and installation method without concrete-breaking |
| CN203904832U (en) * | 2014-07-01 | 2014-10-29 | 衡水恒力通工程橡胶有限公司 | Multifunctional rubber expansion and contraction device |
| CN205259058U (en) * | 2015-12-28 | 2016-05-25 | 衡水润鑫橡胶制品有限公司 | Bridge telescoping device convenient to change |
| CN207017148U (en) * | 2017-07-13 | 2018-02-16 | 杨桂萍 | A kind of novel bridge expansion joint |
| CN108149566A (en) * | 2018-01-30 | 2018-06-12 | 陕西省通达公路建设集团有限责任公司 | A kind of Highway Bridge Expansion Joint |
| CN208293413U (en) * | 2018-05-25 | 2018-12-28 | 齐文廷 | A kind of space multi-directional deflection comb teeth for bridge expanssion joint is board-like |
| CN109610309A (en) * | 2019-01-25 | 2019-04-12 | 北京市市政工程设计研究总院有限公司 | Assembled waterproof bridge expansion joint structure and construction method |
| CN212077610U (en) * | 2020-01-07 | 2020-12-04 | 南昌大学 | Bridge shock attenuation expansion joint device of easy change |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778879A (en) * | 2020-07-21 | 2020-10-16 | 深圳市和顺达建筑工程有限公司 | Municipal bridge repairing construction method |
| CN111778879B (en) * | 2020-07-21 | 2021-12-07 | 深圳市和顺达建筑工程有限公司 | Municipal bridge repairing construction method |
| CN112538817A (en) * | 2020-12-14 | 2021-03-23 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint and construction process |
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