CN221297581U - Novel bridge pavement expansion joint structure - Google Patents
Novel bridge pavement expansion joint structure Download PDFInfo
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- CN221297581U CN221297581U CN202322895999.8U CN202322895999U CN221297581U CN 221297581 U CN221297581 U CN 221297581U CN 202322895999 U CN202322895999 U CN 202322895999U CN 221297581 U CN221297581 U CN 221297581U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 100
- 239000010959 steel Substances 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 238000012946 outsourcing Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of bridge building structures, and discloses a novel bridge pavement expansion joint structure, which comprises a pavement expansion structure and a pavement guardrail base expansion structure, wherein the pavement expansion structure mainly comprises a first base steel plate, a second base steel plate, embedded bolts, a pavement top cover plate, a pavement side cover plate, countersunk screws and a rubber water stop belt; the telescopic structure of the base of the sidewalk guardrail mainly comprises a spring type rubber water stop, a metal pressing strip and an expansion screw. The utility model can strengthen the concrete at two sides of the expansion joint and meet the free deformation of the bridge expansion joint; the sealing performance is far higher than that of the traditional steel plate outsourcing expansion joint, so that the safety, durability and the aesthetic property of the bridge are effectively improved; the traditional expansion joint is prevented from adopting a large number of integral cast-in-situ embedded structures, and assembled components are mainly adopted, so that the construction difficulty of the expansion joint structure on site is reduced, and the expansion joint is more convenient to maintain and replace in the later period.
Description
Technical Field
The utility model belongs to the technical field of bridge building structures, and particularly relates to a bridge pavement expansion joint structure.
Background
The bridge expansion joint is a connectivity structure used for bridge ends, can meet the deformation of bridges under the actions of temperature change, uneven settlement, bridge vibration and the like, provides a protection for bridge deck traveling and pedestrians, and ensures the safety and comfort of vehicles and pedestrians. The service life of the bridge expansion joint is usually 15 years, which is far smaller than that of the bridge main body structure, so that the bridge expansion joint is a replaceable component of the bridge.
In the past, the design and construction of the expansion joint of the bridge deck mainly pay attention to the expansion joint of the pavement, and the design of the expansion joint of the pavement is often ignored. The traditional pavement expansion joint is generally only wrapped by a steel plate, is not fixed by a fixed measure or is fixed by an embedded rib, mainly considers the safety passing of pedestrians and the enclosure function of anti-falling objects, and has the advantages of simple structure and convenient construction, but neglects the durability of the expansion joint in the use process, so that the service life of the expansion joint is often very short and can reach the age of less than 15 years.
The traditional pavement expansion joint mainly has the following problems in the use process:
① The outer-coated steel plate structure has poor adaptability to deformation. Under the long-term deformation and vibration action of the bridge, the expansion joint position cannot move freely, stress concentration is easy to occur, and the local damage of the concrete and the deformation of the steel plate are caused;
② The mounting and fixing modes of the steel plates are unreasonable, the steel plates are gradually displaced and deformed when in use due to the lack of fixation of part of expansion joints, the part of the steel plates are fixed by welding embedded ribs, the construction quality is difficult to guarantee, and diseases such as off-welding, steel plate void and the like often occur in the use process;
③ The steel plate and the steel bar are difficult to maintain and difficult to replace, and the concrete at the expansion joint is usually required to be completely chiseled off, so that the deformation joint device is completely replaced, and the maintenance difficulty and cost are increased;
④ The steel plate has poor tightness, the expansion joint position is easy to produce conditions such as water leakage, water leakage and the like, and concrete at the positions such as the girder end, the pier capping beam and the like is polluted and corroded by water leakage, so that the durability and the surface attractiveness of the bridge structure are seriously affected;
⑤ The existing common expansion joint has poor structural aesthetic property, coarse structure and poor construction quality, and influences the overall aesthetic property of the bridge.
The use effect and the service life of the expansion joint of the bridge pavement are greatly influenced by the problems, so that frequent repair and replacement are caused, and the maintenance cost during bridge operation is increased.
Disclosure of utility model
The utility model aims to solve the related technical problems of the traditional bridge pavement expansion joint structure, and provides a novel bridge pavement expansion joint structure which has good adaptability to the expansion and contraction deformation of a bridge, is easy to detach and replace, is convenient to install, has lower cost and is good in attractiveness.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model provides a novel bridge pavement expansion joint structure, which comprises a pavement expansion joint structure, wherein the pavement expansion joint structure comprises a first base steel plate and a second base steel plate; the first base steel plate and the second base steel plate are respectively arranged on the top surface and the inner side surface of the road surface fixed concrete layer at two sides of the expansion joint, and are fixedly connected with the road surface fixed concrete layer by adopting embedded bolts;
The first base steel plate and the second base steel plate comprise integrally formed cover plate mounting parts and bolt mounting parts, wherein the cover plate mounting parts are closer to the expansion joints relative to the bolt mounting parts; the cover plate mounting part is flush with the bottom surface of the bolt mounting part, and the thickness of the cover plate mounting part is smaller than that of the bolt mounting part; the bolt installation part is used for installing the embedded bolts, and the cover plate installation part is used for installing a pavement top cover plate and a pavement side cover plate;
The pavement top cover plate of the pavement covers the upper surface of the expansion joint, is arranged on the cover plate mounting parts of the first base steel plate and the second base steel plate, and is fixedly connected with the top surface of the second base steel plate by adopting countersunk screws;
The pavement side cover plate covers the inner side surface of the pavement, is arranged outside the cover plate mounting parts of the first base steel plate and the second base steel plate, and is fixedly connected with the side surface of the second base steel plate by adopting countersunk screws;
The pavement top cover plate and the pavement side cover plate are respectively arranged with one side being attached to the bolt mounting part of the second base steel plate, and the other side being spaced from the bolt mounting part of the first base steel plate;
A water stop belt is arranged below the pavement top cover plate, and two sides of the water stop belt are respectively pressed between the first base steel plate, the second base steel plate and the pavement fixed concrete layer.
Further, the telescopic structure of the base of the sidewalk guardrail is also included; the telescopic structure of the pavement guardrail base comprises a spring type rubber water stop belt, and the spring type rubber water stop belt is arranged between the guardrail base fixed concrete layers at two sides of the expansion joint; the two sides of the spring type rubber water stop belt are erected on the top of the fixed concrete layer of the guardrail base and are fixed by metal battens.
Furthermore, the metal pressing strips cover the inner side, the top surface and the outer side of the pavement guardrail base to the end part of the hanging eave outside the two sides of the expansion joint, and are fixed on the surface of the fixed concrete layer of the guardrail base by expansion screws.
Preferably, the spring type rubber water stop is made of ethylene propylene diene monomer rubber.
Further, the embedded bolts penetrate through the bolt mounting portion and are arranged at intervals along the length direction of the expansion joint.
Further, a slope transition is an inclined plane between the cover plate mounting part and the bolt mounting part of the first base steel plate, and a right angle transition is a vertical plane between the cover plate mounting part and the bolt mounting part of the second base steel plate.
Further, the footway top cover plate and the footway side cover plate are respectively attached to the side portions of the second base steel plate to form vertical surfaces, and the side portions of the second base steel plate, which face the first base steel plate, are respectively formed into inclined surfaces.
Furthermore, the footway top cover plate is a standard installation module for block installation and disassembly.
Further, an anti-slip groove is formed in the surface of the pavement top cover plate of the pavement.
Further, the water stop is inclined to the roadway side.
The beneficial effects of the utility model are as follows:
The utility model adopts the combined base steel plate structure, not only can strengthen the concrete at two sides of the expansion joint, but also realizes the deformation of the expansion joint through the relative displacement between the base steel plate and the pavement top cover plate and side cover plate, and the expansion joint has reasonable stress, simple structure and flexible freedom, thereby fundamentally reducing the possibility of diseases of the pavement expansion joint structure.
According to the utility model, the first base steel plate and the second base steel plate are both in an anchoring system, the steel structural members are processed in a factory and installed on site, only the first base steel plate, the second base steel plate and the embedded bolts are required to be installed at the same time when the pavement concrete is poured, and the other members are all installed and fixed by adopting the subsequent bolts and screws, so that the traditional expansion joint construction adopts a large number of integral embedded structures, the engineering quantity and construction difficulty of the expansion joint structure on-site construction are reduced, the installation precision of the expansion joint is improved, and the construction quality of the expansion joint is improved.
The expansion joint is integrally of an all-outsourcing structure, the base steel plate and the metal pressing strip firmly press the water stop belt and the spring type rubber water stop belt on the surface of concrete, the sealing performance is far higher than that of the traditional steel plate outsourcing expansion joint, the pavement rainwater and snow melting underwater leakage can be effectively intercepted, meanwhile, the falling risk of a bridge deck is prevented, a good enclosure system is formed, and the safety, durability and attractiveness of a bridge are improved.
The first base steel plate, the second base steel plate, the pavement top cover plate, the pavement side cover plate, the metal pressing strip, the water stop belt, the spring type rubber water stop belt and other main components are all detachable and replaceable components, and the concrete structures at two sides of the expansion joint are not required to be damaged during replacement, so that the expansion joint structure has excellent maintainability and high environmental protection.
Drawings
Figure 1 is a schematic diagram of the whole structure of the expansion joint structure of the bridge pavement,
Figure 2 is a partial schematic view of the expansion joint structure of the pavement of the bridge pavement of the utility model,
Figure 3 is a cross-sectional view of the expansion joint structure of the pavement of the bridge of the present utility model,
Figure 4 is a cross-sectional view of the base shrinkage joint structure of the pavement guard rail of the present utility model,
Fig. 5 is an overall cross-sectional view of the expansion joint structure of the bridge pavement of the present utility model.
In the above figures: 1. the pavement system comprises a first base steel plate, a second base steel plate, a pavement top cover plate, a pavement side cover plate, a pre-buried bolt, a countersunk screw, a rubber water stop, a pavement fixed concrete layer, an expansion joint, a bridge deck, a pavement 11, a metal batten, an expansion screw, a spring type rubber water stop and a guardrail base fixed concrete layer, wherein the pavement top cover plate is arranged on the pavement, the pre-buried bolt is arranged on the pavement side cover plate, the countersunk screw is arranged on the pavement side cover plate, the rubber water stop is arranged on the pavement fixed concrete layer, the expansion joint is arranged on the pavement fixed concrete layer, the bridge deck is arranged on the pavement, the pavement paving is arranged on the pavement, the metal batten is arranged on the pavement, the expansion screw is arranged on the pavement, and the expansion screw is arranged on the pavement fixed concrete layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
As shown in fig. 1 to 4, the embodiment of the utility model provides a novel bridge pavement expansion joint structure, which consists of a pavement expansion structure and a pavement guardrail base expansion structure.
The pavement telescopic structure comprises a first base steel plate 1 and a second base steel plate 2, wherein the first base steel plate 1 and the second base steel plate 2 are respectively arranged on the top surface and the inner side surface of a pavement fixed concrete layer 8 on two sides of an expansion joint 9, and are fixedly connected with the pavement fixed concrete layer 8 by adopting embedded bolts 5.
The first base steel plate 1 and the second base steel plate 2 comprise integrally formed cover plate mounting portions and bolt mounting portions, wherein the cover plate mounting portions are closer to the expansion joints 9 relative to the bolt mounting portions. The cover plate mounting portion is flush with the bottom surface of the bolt mounting portion, and the thickness of the cover plate mounting portion is smaller than the thickness of the bolt mounting portion. The embedded bolts 5 penetrate through the bolt mounting parts of the first base steel plate 1 and the second base steel plate 2 and are arranged at intervals along the length direction of the expansion joint 9.
Slope transition is the inclined plane between apron installation department and the bolt installation department of first base steel sheet 1 for satisfy the purpose of pavement travelling comfort when realizing expansion joint 9 deformation. The right angle transition between the cover plate mounting portion and the bolt mounting portion of the second base steel plate 2 is a vertical surface for positioning the pavement top cover plate 3 and the pavement side cover plate 4.
The pavement top cover plate 3 covers the upper surface of the expansion joint 9, is arranged on the cover plate installation parts of the first base steel plate 1 and the second base steel plate 2, and is fixedly connected with the top surface of the second base steel plate 2 by adopting countersunk head screws 6. The pavement side cover plate 4 covers the expansion joint 9 towards the pavement (namely the inner side surface of the pavement), is arranged outside the cover plate installation parts of the first base steel plate 1 and the second base steel plate 2, and is connected and fixed with the side surface of the second base steel plate 2 by adopting countersunk screws 6. The pavement top cover plate 3 and the pavement side cover plate 4 are respectively arranged on one side in a fitting way with the vertical surface of the second base steel plate 2, and the other side is spaced from the inclined surface of the first base steel plate 1. Accordingly, the pavement top cover 3 and the pavement side cover 4 are each provided with a vertical surface on the side portion thereof attached to the second base steel plate 2, and an inclined surface on the side portion thereof facing the first base steel plate 1.
Like this, pavement top cover plate 3 and pavement side cover plate 4 can all realize the expansion joint deformation through the relative displacement with first base steel sheet 1 between, also can form whole plane through flush with the bolt installation department top surface of second base steel sheet 2 simultaneously, have promoted security, durability and the aesthetic property of pavement.
Preferably, the pavement top cover plate 3 of the pavement is a standard installation module, and can be installed and detached in a blocking manner. The surface of the top cover plate 3 is designed to be good by adopting an anti-slip groove, so that the safety of people in the outdoor environment in rainy and snowy weather is ensured. The anti-skid grooves on the surface of the pavement top cover plate 3 of the pavement are generally spaced at intervals of 2cm, and the depth can be 3-5 mm.
A water stop belt 7 is arranged below the pavement top cover plate 3 of the pavement, and two sides of the water stop belt 7 are respectively pressed between the first base steel plate 1 and the second base steel plate 2 and the pavement fixed concrete layer 8. The water stop belt 7 inclines to the side of the roadway, the end part of the water stop belt is aligned with the end head of the expansion joint of the roadway, and the purpose of the water stop belt is to drain rainwater collected in the water stop belt 7 into the expansion joint of the roadway and drain the rainwater together through a drainage system of a bridge deck.
The telescopic structure of the pavement guardrail base comprises a spring type rubber water stop 14, wherein the spring type rubber water stop 14 is arranged at the top of the expansion joint 9 of the pavement guardrail base, namely, the expansion joint 9 is filled with the guardrail base fixed concrete layers 15 at two sides of the expansion joint. The two sides of the spring type rubber water stop 14 are erected on the top of the guardrail base fixed concrete layer 15 and are fixed by adopting the metal batten 12. The metal pressing strips 12 wrap the inner side, the top surface and the outer side of the pavement guardrail base to the end parts of the hanging eaves outside the two sides of the expansion joint 9, and are fixed on the surface of the fixed concrete layer 15 of the guardrail base by expansion screws 13. The specification of the spring type rubber water stop 14 considers the influence of the expansion and contraction amount of the bridge expansion joint 9 so as to ensure that the expansion and contraction of the spring type rubber water stop can meet the beam end deformation requirement under the normal use condition.
The first base steel plate 1, the second base steel plate 2, the pavement top cover plate 3, the pavement side cover plate 4 and the metal batten 12 are recommended to be made of stainless steel or aluminum alloy materials, and low alloy steel materials with additional corrosion prevention measures can be adopted to ensure the uniformity of the overall appearance of the expansion joint structure. The materials of the water stop 7 and the spring type rubber water stop 14 are recommended to be ethylene propylene diene monomer rubber water stops.
The dimensions of the first base steel plate 1, the second base steel plate 2, the pavement top cover plate 3 and the pavement side cover plate 4 should be determined by combining the expansion and contraction amount of the concrete bridge expansion joint 9 so as to meet the beam end deformation requirement under the normal use condition.
During construction, the pavement surface fixed concrete layer 8 is poured on the bridge deck 10, the top surface of the concrete pouring is flush with the top surface of the pavement surface 11, the first base steel plate 1, the second base steel plate 2 and the water stop belt 7 are synchronously installed in the pouring stage, and the first base steel plate, the second base steel plate 2 and the water stop belt 7 are fixed on the surface of the pavement surface fixed concrete layer 8 by adopting the embedded bolts 5. After the concrete curing is completed, the nuts of the embedded bolts 5 are fastened. And the processed modularized road surface top cover plate 3 and the road surface side cover plate 4 are mounted on the cover plate mounting part of the second base steel plate 2 by adopting countersunk head screws 6. After the concrete layer 15 is fixed on the base of the sidewalk guardrail, and the concrete layer 15 is poured and maintained, the rubber water stop 14 is tightly pressed and fastened on the surface of the concrete layer 15 by adopting the expansion screw 13 and the metal pressing strip 12.
Although the preferred embodiments of the present utility model have been described above with reference to the accompanying drawings, the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, and many changes may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the appended claims, which are to be construed as falling within the scope of the present utility model.
Claims (10)
1. The novel bridge pavement expansion joint structure is characterized by comprising a pavement expansion joint structure, wherein the pavement expansion joint structure comprises a first base steel plate and a second base steel plate; the first base steel plate and the second base steel plate are respectively arranged on the top surface and the inner side surface of the pavement surface fixed concrete layer at two sides of the expansion joint, and are fixedly connected with the pavement surface fixed concrete layer by adopting embedded bolts;
The first base steel plate and the second base steel plate comprise integrally formed cover plate mounting parts and bolt mounting parts, wherein the cover plate mounting parts are closer to the expansion joints relative to the bolt mounting parts; the cover plate mounting part is flush with the bottom surface of the bolt mounting part, and the thickness of the cover plate mounting part is smaller than that of the bolt mounting part; the bolt installation part is used for installing the embedded bolts, and the cover plate installation part is used for installing a pavement top cover plate and a pavement side cover plate;
The pavement top cover plate of the pavement covers the upper surface of the expansion joint, is arranged on the cover plate mounting parts of the first base steel plate and the second base steel plate, and is fixedly connected with the top surface of the second base steel plate by adopting countersunk screws;
The pavement side cover plate covers the inner side surface of the pavement, is arranged outside the cover plate mounting parts of the first base steel plate and the second base steel plate, and is fixedly connected with the side surface of the second base steel plate by adopting countersunk screws;
The pavement top cover plate and the pavement side cover plate are respectively arranged with one side being attached to the bolt mounting part of the second base steel plate, and the other side being spaced from the bolt mounting part of the first base steel plate;
A water stop belt is arranged below the pavement top cover plate, and two sides of the water stop belt are respectively pressed between the first base steel plate, the second base steel plate and the pavement fixed concrete layer.
2. The novel bridge pavement expansion joint structure according to claim 1, further comprising a pavement guardrail base expansion structure; the telescopic structure of the pavement guardrail base comprises a spring type rubber water stop belt, and the spring type rubber water stop belt is arranged between the guardrail base fixed concrete layers at two sides of the expansion joint; the two sides of the spring type rubber water stop belt are erected on the top of the fixed concrete layer of the guardrail base and are fixed by metal battens.
3. The novel bridge pavement expansion joint structure according to claim 2, wherein the metal pressing strips are wrapped outside the two sides of the expansion joint to cover the inner side, the top surface and the outer side of the pavement guardrail base to the end part of the hanging eave, and the metal pressing strips are fixed on the surface of the concrete layer of the guardrail base through expansion screws.
4. The novel bridge pavement expansion joint structure according to claim 2, wherein the spring type rubber water stop is made of ethylene propylene diene monomer rubber.
5. The novel bridge pavement expansion joint structure according to any one of claims 1-4, wherein said embedded bolts penetrate through said bolt mounting portion and are arranged at intervals along the length direction of the expansion joint.
6. The novel bridge pavement expansion joint structure according to any one of claims 1-4, wherein the slope transition between the cover plate mounting portion and the bolt mounting portion of the first base steel plate is an inclined plane, and the right angle transition between the cover plate mounting portion and the bolt mounting portion of the second base steel plate is a vertical plane.
7. The novel bridge pavement expansion joint structure according to any one of claims 1-4, wherein said pavement top cover plate and pavement side cover plate are both provided with vertical surfaces attached to the side portions of said second base steel plate and inclined surfaces provided with respect to the side portions of said first base steel plate.
8. The novel bridge pavement expansion joint structure according to any one of claims 1-4, wherein said pavement top cover plate is a standard specification mounting module for block mounting and dismounting.
9. The novel bridge pavement expansion joint structure according to any one of claims 1-4, wherein said pavement top cover plate surface is provided with anti-slip grooves.
10. A novel bridge pavement expansion joint structure according to any of claims 1-4, characterized in that said water stop is inclined to the pavement side.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221297581U true CN221297581U (en) | 2024-07-09 |
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