CN221523306U - Novel steel bridge deck pavement structure - Google Patents
Novel steel bridge deck pavement structure Download PDFInfo
- Publication number
- CN221523306U CN221523306U CN202420100434.8U CN202420100434U CN221523306U CN 221523306 U CN221523306 U CN 221523306U CN 202420100434 U CN202420100434 U CN 202420100434U CN 221523306 U CN221523306 U CN 221523306U
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- China
- Prior art keywords
- layer
- bridge deck
- steel bridge
- ultra
- high performance
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 26
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 239000003822 epoxy resin Substances 0.000 claims abstract description 17
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 15
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 10
- 239000004593 Epoxy Substances 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 6
- 238000005488 sandblasting Methods 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- -1 waterproof tie coat Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 61
- 239000002344 surface layer Substances 0.000 abstract description 11
- 239000004567 concrete Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 5
- 239000002346 layers by function Substances 0.000 abstract description 2
- 239000010426 asphalt Substances 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000013521 mastic Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model provides a novel steel bridge deck pavement structure, and belongs to the technical field of bridge construction. The anti-corrosion waterproof coating comprises an anti-corrosion layer, a waterproof bonding layer, an ultra-high performance concrete layer, an epoxy resin bonding layer and a polymer modified asphalt concrete pavement surface layer, wherein the anti-corrosion layer is coated on a steel bridge deck, the waterproof bonding layer is paved above the anti-corrosion layer, the fiber concrete pavement layer is paved above the waterproof bonding layer, the modified asphalt concrete pavement surface layer is paved above the ultra-high performance concrete layer, and the epoxy resin bonding layer is arranged between the ultra-high performance concrete layer and the polymer modified asphalt concrete pavement surface layer. According to the utility model, a plurality of layers of functional layers with different performances are combined and paved, the graphene zinc-rich paint is used as the anti-corrosion layer, and the formed rigid-flexible combined paving form can be widely used in sea area environments, south damp and hot areas, high temperature areas and rainy areas, and has good high temperature performance, crack resistance, fatigue resistance, durability and waterproofness.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a novel steel bridge deck pavement structure.
Background
Along with the rapid economic growth and technological progress of China, the requirements for realizing river-crossing and sea-crossing traffic are increasingly increased, the construction of a large-span highway steel bridge is rapidly developed, and the steel bridge deck pavement materials and technologies of China are also transited from the initial stage of directly introducing foreign mature pavement structures and technologies to the innovation stage mainly based on autonomous development.
The bridge deck pavement problem always plagues road bridge engineering community, wherein the durability and the functional problem of steel bridge deck pavement are particularly outstanding, wherein the failure of the waterproof adhesive layer is one of common diseases of steel bridge deck pavement, which often leads to rust of a steel bridge deck, reduces the service life of steel bridge deck pavement and brings hidden trouble to the safety of bridge structures. At present, the anti-corrosion primer layer of the waterproof adhesive layer mainly adopts epoxy zinc-rich paint, and the epoxy zinc-rich anti-corrosion primer layer is piled up to form a conductive path (the zinc content in a dry film of the coating reaches more than 80 percent) depending on a large amount of zinc powder particles in the coating, so that the anti-corrosion primer layer plays a role in protecting the cathode of the sacrificial anode, has a good use effect, and has serious corrosion phenomenon after certain projects have pavement diseases.
At present, a steel bridge deck pavement system mainly adopts asphalt flexible pavement systems such as double-layer asphalt mastic (SMA), pouring asphalt (GA) +SMA and the like, but the flexible pavement system easily causes the problem of fatigue cracking of the steel bridge deck. Fatigue cracking can destroy the integrity and continuity of a steel bridge deck structure, rainwater penetrates into a paving layer through a crack, scouring and mud pumping phenomena occur under the action of vehicle-mounted load, and then the damage of the paving layer is accelerated, so that diseases such as looseness, pits and the like are caused, the travelling comfort is reduced, and the travelling danger is increased.
The utility model provides a novel steel bridge deck pavement structure, which aims to solve the problems that a steel plate is easy to rust rapidly and aggravate disease development after local diseases appear in steel bridge deck pavement and a steel bridge deck plate is easy to fatigue crack.
Disclosure of Invention
Aiming at the defects of the prior steel bridge deck pavement, the utility model provides a novel steel bridge deck pavement structure, which takes graphene zinc-rich primer as an anti-corrosion primer layer, ultra-high performance concrete as a lower surface layer and modified asphalt mixture as a surface layer.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a novel steel bridge deck pavement structure, includes anticorrosive coating, waterproof tie coat, ultra-high performance concrete layer, epoxy tie coat and polymer modified asphalt concrete pavement surface course, and anticorrosive coating coats on steel bridge deck, and waterproof tie coat has been laid to anticorrosive coating top, and ultra-high performance concrete layer has been laid to waterproof tie coat top, and ultra-high performance concrete layer top has been laid polymer modified asphalt concrete pavement surface course, is equipped with epoxy tie coat between ultra-high performance concrete layer and the polymer modified asphalt concrete pavement surface course.
The surface of the steel bridge deck is a surface subjected to shot blasting and sand blasting rust removal, the cleanliness of the surface is at least Sa2.5 level, and the roughness is 50-140 mu m.
The zinc-rich graphene paint is used as the anti-corrosion layer, a layer of graphene network is formed in the coating system by a dispersion technology, zinc powder is inlaid on the graphene network, and graphene has excellent conductivity, so that the electrochemical anti-corrosion efficiency of the zinc powder can be improved from 10% of the traditional zinc-rich paint to 90% of the excellent shielding effect of the graphene network, and the difficulty of permeation of corrosive medium chloride ions and water molecules can be greatly increased.
The waterproof bonding layer is formed by uniformly arranging a layer of fine broken stone on epoxy resin, the dosage of the epoxy resin is 0.3-0.4 kg/m 2, and the grain size of the fine broken stone is 0.5-1.0 mm.
The thickness of the ultra-high performance concrete layer is 35-55mm.
The epoxy resin consumption of the epoxy resin bonding layer is 0.8-1.2 kg/m 2.
The thickness of the modified asphalt concrete pavement surface layer is 30-50mm, and the compactness is more than or equal to 98%.
As described above, the novel steel bridge deck pavement structure has at least the following beneficial effects:
1. the utility model makes full use of the excellent characteristics of each functional layer to carry out reasonable layered combined pavement, so that the comprehensive performances of impact resistance, deformation resistance, ageing resistance and the like of the whole pavement structure reach higher level.
2. Compared with the traditional epoxy zinc-rich paint, the graphene zinc-rich paint has the characteristics of high strength, high flexibility, good matrix binding force, no corrosion, no bubbling, no falling and the like, and has excellent corrosion resistance and durability effects.
3. The epoxy asphalt bonding layer is connected with the ultra-high performance concrete layer and the modified asphalt concrete pavement surface layer, so that the bonding strength of the ultra-high performance concrete layer and the modified asphalt concrete pavement surface layer is higher, and the shearing resistance of the epoxy asphalt bonding layer is obviously improved.
4. The ultra-high performance concrete layer adopts fiber concrete, and the fiber mixed in the concrete can effectively limit the expansion of cracks of the concrete; on one hand, the durability, the cracking resistance and the comfort of the bridge deck can be improved and enhanced, on the other hand, the flexural strength of the bridge and the rigidity of the bridge can be correspondingly enhanced, the paving thickness can be reduced, the dead weight of the structure can be reduced, and the stress condition of the bridge can be improved.
5. The utility model welds shear nails on the bridge deck, and lays steel bars to form a steel bar net, thereby playing a role in reinforcing steel bars.
Drawings
FIG. 1 is a schematic view of a novel steel deck pavement structure of the present utility model;
FIG. 2 is a schematic view of a novel steel deck pavement structure (another view angle) according to the present utility model;
In the figure: 1 steel bridge deck, 2 anticorrosive coating, 3 waterproof bonding layer, 4 ultra-high performance concrete layer, 5 epoxy resin bonding layer, 6 polymer modified asphalt concrete pavement surface layer, 7 shear pin.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Referring to fig. 1 and 2, the technical scheme adopted by the present utility model for solving the above problems is as follows: the utility model provides a novel steel bridge deck pavement structure, including anticorrosive coating 2, waterproof tie layer 3, ultra-high performance concrete layer 4, epoxy tie layer 5 and polymer modified asphalt concrete pavement surface course 6, anticorrosive coating 2 coats on steel bridge deck 1, waterproof tie layer 3 has been laid to anticorrosive coating 2 top, waterproof tie layer 3 top has been laid ultra-high performance concrete layer 4, polymer modified asphalt concrete pavement surface course 6 has been laid to ultra-high performance concrete layer 4 top, be equipped with epoxy tie layer 5 between ultra-high performance concrete layer 4 and the polymer modified asphalt concrete pavement surface course 6.
In this embodiment, the surface of the steel bridge surface 1 is a surface subjected to shot blasting and rust removal treatment, the cleanliness of the surface is at least as high as Sa2.5, and the roughness is 50-140 μm.
The zinc-rich graphene paint is used as the anticorrosive layer 2, a layer of graphene network is formed in a coating system by a dispersion technology, zinc powder is inlaid on the graphene network, and graphene has excellent conductivity, so that the electrochemical anticorrosive efficiency of the zinc powder can be improved from 10% to 90% of the conventional zinc-rich paint, and the difficulty in permeation of corrosive medium chloride ions and water molecules can be greatly increased by the excellent shielding effect of the graphene network.
The waterproof bonding layer 3 is formed by uniformly arranging a layer of fine broken stone on epoxy resin, the dosage of the epoxy resin is 0.4kg/m 2, and the grain diameter of the fine broken stone is 0.5-1.0 mm.
The ultra-high performance concrete layer 4 is made of steel fiber concrete, and the thickness of the steel fiber concrete is 55mm.
The epoxy resin consumption of the epoxy resin bonding layer 5 is 1.0kg/m 2.
The thickness of the polymer modified asphalt concrete pavement surface layer 6 is 30mm, and the compactness is more than or equal to 98%.
A novel paving method of a steel bridge deck paving structure comprises the following steps:
s1, carrying out sand blasting rust removal construction on a steel plate of a steel bridge deck 1;
S2, spraying graphene zinc-rich paint on the surface of the steel bridge surface 1 within 4 hours after sand blasting and rust removal, and performing anti-corrosion treatment;
S3, welding shear nails 7 on the steel bridge surface 1, and arranging transverse and longitudinal steel bars to form a steel bar network;
S4, performing construction of a waterproof bonding layer 3 on the anti-corrosion layer 2;
s5, paving the ultra-high performance concrete 4 on the waterproof bonding layer 3;
s6, after the ultra-high performance concrete is paved, performing normal temperature film coating health maintenance, and performing high temperature steam health maintenance to form ultra-high performance
A layer of energy concrete 4;
S7, sand blasting roughening is carried out on the surface of the ultra-high performance concrete layer 4, and an epoxy resin bonding layer 5 is sprayed;
S8, paving a polymer modified asphalt concrete pavement surface layer 6 on the epoxy resin bonding layer 5.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. The utility model provides a novel steel bridge deck pavement structure, a serial communication port, including anticorrosive coating, waterproof tie coat, ultra-high performance concrete layer, epoxy tie coat and polymer modified asphalt concrete pavement surface course, the anticorrosive coating coats on the steel bridge deck, waterproof tie coat has been laid to anticorrosive coating top, ultra-high performance concrete layer has been laid to waterproof tie coat top, polymer modified asphalt concrete pavement surface course has been laid to ultra-high performance concrete layer top, is equipped with epoxy tie coat between ultra-high performance concrete layer and the polymer modified asphalt concrete pavement surface course.
2. The novel steel bridge deck pavement structure according to claim 1, wherein: the surface of the steel bridge deck is a surface subjected to shot blasting and sand blasting rust removal, the cleanliness of the surface is at least Sa2.5 level, and the roughness is 50-140 mu m.
3. The novel steel bridge deck pavement structure according to claim 1, wherein: the anti-corrosion layer is made of graphene zinc-rich paint.
4. The novel steel bridge deck pavement structure according to claim 1, wherein: the waterproof bonding layer is formed by uniformly arranging a layer of fine broken stone on epoxy resin, the dosage of the epoxy resin is 0.3-0.4 kg/m 2, and the grain size of the fine broken stone is 0.5-1.0 mm.
5. The novel steel bridge deck pavement structure according to claim 1, wherein: the thickness of the ultra-high performance concrete layer is 35-55mm.
6. The novel steel bridge deck pavement structure according to claim 1, wherein: the epoxy resin consumption of the epoxy resin bonding layer is 0.8-1.2 kg/m 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420100434.8U CN221523306U (en) | 2024-01-16 | 2024-01-16 | Novel steel bridge deck pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420100434.8U CN221523306U (en) | 2024-01-16 | 2024-01-16 | Novel steel bridge deck pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221523306U true CN221523306U (en) | 2024-08-13 |
Family
ID=92177673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420100434.8U Active CN221523306U (en) | 2024-01-16 | 2024-01-16 | Novel steel bridge deck pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221523306U (en) |
-
2024
- 2024-01-16 CN CN202420100434.8U patent/CN221523306U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |