CN114808690B - Steel bridge deck pavement structure - Google Patents
Steel bridge deck pavement structure Download PDFInfo
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- CN114808690B CN114808690B CN202210354805.0A CN202210354805A CN114808690B CN 114808690 B CN114808690 B CN 114808690B CN 202210354805 A CN202210354805 A CN 202210354805A CN 114808690 B CN114808690 B CN 114808690B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 101
- 239000010959 steel Substances 0.000 title claims abstract description 101
- 229920000642 polymer Polymers 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 239000000113 methacrylic resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 6
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 229920001021 polysulfide Polymers 0.000 claims abstract description 4
- 239000005077 polysulfide Substances 0.000 claims abstract description 4
- 150000008117 polysulfides Polymers 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 229910001125 Pa alloy Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 7
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 3
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 106
- 239000004567 concrete Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 239000004593 Epoxy Substances 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 125000005395 methacrylic acid group Chemical group 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Abstract
The invention provides a steel bridge deck pavement structure, which comprises an anti-corrosion layer, an elastic transition layer, a bonding layer, a high polymer prefabricated section layer and an anti-slip layer which are sequentially paved on a steel bridge deck; the elastic transition layer is prepared by blending reactive resin and filler with the particle size smaller than 5mm, wherein the reactive resin is one or more of polyurethane, modified epoxy resin, methacrylic resin, liquid silicone rubber and liquid polysulfide rubber or a modified product thereof; the high-molecular prefabricated section bar layer adopts a spliced structure, and is prefabricated by thermoplastic resin or thermosetting resin or modified matters; the anti-slip layer is prepared by blending reactive resin and aggregate. The steel bridge deck pavement structure not only has excellent low-temperature cracking resistance and fatigue resistance, but also has excellent wear resistance and fracture resistance, and also has excellent high stability and load deformation resistance, and the long service life of the ultrathin steel bridge deck pavement structure is truly realized.
Description
Technical Field
The present application belongs to the divisional application of 202010635098.3.
The invention belongs to the technical field of steel bridge deck pavement, and particularly relates to a steel bridge deck pavement structure.
Background
In the technical field of steel bridge deck pavement, developing ultrathin and ultra-light steel bridge deck pavement structure consistency is a hot spot studied in the field.
In the prior art, document CN207331448U provides a long-acting fatigue-resistant steel bridge deck pavement structure, which sequentially comprises a flexible concrete wearing layer, a rigid concrete structural layer and a flexible concrete protection layer from top to bottom, wherein the flexible concrete wearing layer is arranged on the rigid concrete structural layer, the rigid concrete structural layer is arranged on the flexible concrete protection layer, the flexible concrete protection layer is used for being arranged on a steel bridge deck, namely, a soft+rigid+flexible system is adopted in three-layer composite pavement, the flexible concrete wearing layer is a functional layer, the requirements of drainage and travelling comfort are met, the rigid concrete structural layer is a structural layer, the bridge deck system rigidity is improved, the stress level is reduced, the flexible concrete protection layer is a protection layer, the stress is absorbed, the deformation of the steel bridge deck is followed, and a waterproof system can be formed together with a waterproof bonding layer. However, although the steel bridge deck pavement structure can realize ultra-thin pavement, the wear resistance and the fracture resistance of the steel bridge deck pavement structure are required to be further optimized, and the low-temperature cracking resistance of the steel bridge deck pavement structure in the use process in winter is poor.
Disclosure of Invention
The invention aims to provide an ultrathin steel bridge deck pavement structure with excellent wear resistance, folding resistance and low-temperature cracking resistance.
In order to achieve the above object, the present invention adopts the following technical scheme.
A steel bridge deck pavement structure comprises an anti-corrosion layer, an elastic transition layer, a bonding layer, a high-molecular prefabricated section layer and an anti-slip layer which are sequentially paved on a steel bridge deck; the elastic transition layer has self-leveling property, the elastic recovery rate is not less than 98 percent, the compression ratio is not more than 4 percent, the elastic transition layer is prepared by blending reactive resin and filler with the particle size of less than 5mm, and the reactive resin is one or a combination of more of polyurethane, modified epoxy resin, methacrylic resin, liquid silicone rubber and liquid polysulfide rubber or a modified product thereof; the bonding layer adopts a resin adhesive; the high-molecular prefabricated section layer adopts a spliced structure, adjacent prefabricated modules are connected in a lap joint or clamping way, and the surfaces of the connected different prefabricated modules are positioned on the same horizontal plane; the macromolecule prefabricated section bar layer is a section bar layer prefabricated by thermoplastic resin or thermosetting resin or modified matters thereof; the anti-slip layer is prepared by blending reactive resin and aggregate with the particle size of 2-10mm, wherein the aggregate is a blend of inorganic mineral aggregate and organic material.
As a preferable scheme, the thickness of the anti-corrosion layer is 0.03-0.1mm, the thickness of the elastic transition layer is 2-20mm, the thickness of the polymer prefabricated section bar layer is 10-50mm, and the thickness of the anti-slip layer is 2-10mm. As a more preferable scheme, the thickness of the anti-corrosion layer is 0.05-0.8mm, the thickness of the elastic transition layer is 5-10mm, the thickness of the polymer prefabricated section bar layer is 30-35mm, and the thickness of the anti-slip layer is 4-6mm.
As a more preferable scheme, the reactive resin is modified epoxy resin, and the powder-to-gel ratio is powder: glue = 65-85:35-15,
more preferably, the powder-to-gel ratio is: glue = 75:25, aggregate is iron steel grit: carborundum: rubber powder is mixed according to the mass ratio of 2:2:1.
Further, the hollow rate of the polymer prefabricated section layer is 30-70%.
Preferably, the polymer prefabricated section layer adopts modified ASA, ASA alloy, PA alloy or PVC alloy.
The beneficial effects are that:
1) The steel bridge deck pavement structure not only has excellent low-temperature cracking resistance and fatigue resistance, solves the problem of low-temperature cracking of the steel bridge deck pavement structure in the use process in winter, but also has excellent wear resistance and fracture resistance, and also has excellent high stability and load deformation resistance, and the advantages of the epoxy asphalt mixture pavement structure and the concrete pavement structure can be taken into consideration under the condition that the epoxy asphalt mixture and the concrete are not adopted, so that the long service life of the ultrathin steel bridge deck pavement structure is truly realized;
2) By adopting the steel bridge deck pavement structure, in the use process, no matter the bridge deck dynamic load transformation or the disturbance of the steel bridge caused by wind power is caused, the steel bridge deck is not deformed by torsion and buckling, and the problems of the ultra-large span steel bridge deck that the steel bridge deck is deformed by torsion and buckling in the use process are skillfully solved;
3) Compared with the existing conventional steel bridge deck asphalt concrete pavement structure, the steel bridge deck pavement structure can reduce the constant load of the steel bridge deck pavement by 30% -60%, and the bearing requirement and the construction difficulty of the ultra-large span steel bridge are substantially reduced; under the condition of meeting the same bearing requirement of the steel bridge, the steel bridge deck pavement structure can greatly improve the safety coefficient of the ultra-large span steel bridge;
4) The steel bridge pavement structure has high strength, moderate modulus and ingenious structure, can thoroughly isolate moisture, forms an integrated functional layer of adhesion, water resistance, buffering and wear resistance, ensures the water resistance of the steel bridge pavement, prolongs the service life of the steel bridge pavement structure and reduces maintenance cost;
5) The construction process of the steel bridge deck pavement structure is very convenient, and the pavement main body material can be prefabricated in factories and assembled on site.
Drawings
FIG. 1 is a schematic diagram of a steel deck pavement structure in example 1 of the present invention;
FIG. 2 is a schematic plan view of a polymer prefabricated section layer of the steel bridge deck pavement structure in example 1;
FIG. 3 is a schematic view of the connection portion of adjacent polymer prefabricated section layers in example 1;
FIG. 4 is a schematic diagram of a steel deck pavement structure in example 2 of the present invention;
in the figure, a 1-steel bridge deck (steel plate), a 2-anticorrosive layer, a 3-elastic transition layer, a 4-polymer prefabricated section layer, a 5-anti-slip layer and a 6-connecting piece.
Detailed Description
The following description of the present invention will be made clearly and fully, and the described embodiments are merely some, but not all, embodiments of the present invention. It is noted that the following examples are not to be construed as limiting the scope of the present invention, and that some insubstantial modifications and variations are within the scope of the invention as would be suggested to one of ordinary skill in the art in light of the teachings herein.
Example 1
The steel bridge deck pavement structure comprises an anti-corrosion layer 2, an elastic transition layer 3, a high-polymer prefabricated section layer 4 and an anti-slip layer 5 which are sequentially paved on a steel bridge deck 1 (steel plate), wherein an adhesive layer (not shown in the figure) is arranged between the elastic transition layer 3 and the high-polymer prefabricated section layer 4; the elastic transition layer 3 and the anti-slip layer 5 are of an integrated structure, the specification of a single polymer prefabricated section layer 4 is 6-12 m long and 1-1.8 m wide, adjacent polymer prefabricated section layers 4 are connected in a lap joint or clamping mode, and the surfaces of all the connected polymer prefabricated section layers 4 are located on the same plane.
The elastic transition layer 3 is prepared by blending reactive resin and filler with the particle size smaller than 5mm, the elastic transition layer 3 has self-leveling property, the elastic recovery rate is not smaller than 98%, the compression ratio is not larger than 4%, and the thickness of the elastic transition layer 3 is 2-20mm; the reactive resin is one or more of polyurethane, epoxy resin, methacrylic resin, liquid silicone rubber and liquid polysulfide rubber or a modified product thereof.
Wherein the polymer prefabricated section layer 4 is a section layer prefabricated by thermoplastic resin or thermosetting resin or modified matters thereof, the thickness of the polymer prefabricated section layer 4 is 10-50mm, the polymer prefabricated section layer 4 is in a hollow structure, the hollow rate is 30-50%, and the thickness of the polymer prefabricated section layer 4 is 30-50mm.
Wherein the anti-slip layer 5 is prepared by blending reactive resin and aggregate with the particle size of 2-10mm, the aggregate is a blend of inorganic mineral aggregate and organic material, and the thickness of the anti-slip layer 5 is 2-20mm.
Wherein, adjacent polymer prefabricated section bar layer 4 all links into an integrated entity along its horizontal and longitudinal, and its horizontal edge and longitudinal edge stagger respectively and arrange to be provided with the connecting piece in the junction of adjacent polymer prefabricated section bar layer 4, the connecting piece simultaneously fixed connection adjacent polymer prefabricated section bar layer 4, as shown in fig. 2 and 3.
Wherein the anticorrosive layer 2 is an epoxy zinc-rich paint layer or a methacrylic resin anticorrosive layer 2, and the thickness of the anticorrosive layer 2 is 0.03-0.1mm.
In a specific steel bridge deck pavement structure scheme, firstly, derusting treatment is carried out on a steel bridge deck 1 to ensure that the steel bridge deck 1 meets the requirements of cleanliness and roughness, and then an epoxy zinc-rich paint layer (namely an anti-corrosion layer 2) with the thickness of 0.03mm is sprayed on the surface of the steel bridge deck; after the anticorrosive layer 2 is completely dried, an elastic transition layer 3 with the thickness of 10mm is constructed, wherein the elastic transition layer 3 is prepared by blending epoxy modified polyurethane with a filler with the particle size of less than 5mm (the filler component is a mixture of light calcium carbonate, hollow microbeads and gas-phase white carbon black, the light calcium carbonate comprises the hollow microbeads and the gas-phase white carbon black=70:25:15 (mass ratio)), and the powder-rubber ratio of the epoxy modified polyurethane is powder: glue = 75:25 (mass ratio); after the elastic transition layer 3 is dried, directly assembling the high-molecular prefabricated section layer 4 on site, wherein the assembling mode is shown in fig. 2 and 3, the high-molecular prefabricated section layer 4 is a hollow section layer prefabricated by adopting polyarylene sulfide modified resin, and the thickness of the hollow section layer is 30mm, and the hollow rate is 50%; after the polymer prefabricated section layer 4 is horizontally assembled on site, spraying a resin binder (i.e. a bonding layer) on the surface of the polymer prefabricated section layer; finally, paving an anti-slip layer 5, wherein the anti-slip layer is a blend of polyurethane modified epoxy resin and aggregate with the particle size of 2-10mm, and the aggregate is iron steel sand: carborundum: rubber powder=2:2:1 mixture (mass ratio), with a thickness of 5mm.
In the scheme, the macromolecule prefabricated section layer 4 is assembled in a workshop prefabricated forming site, and the prefabricated specification is 10 meters long, 1.5 meters wide and 30mm thick; the connecting piece 2 adopts an I-shaped section, the section can adopt aluminum materials, copper materials, stainless steel materials or plastic steel sections meeting the mechanical property requirement, but the wall thickness of the section is not more than 1/3 of the wall thickness of the high polymer prefabricated section layer 4. Taking a steel bridge with a span of 2500 m as an example, the constant load of the existing conventional steel bridge deck asphalt concrete pavement structure is about 0.12-0.18 ton/m 2 The constant load of the steel bridge deck pavement structure in the scheme is only about 0.05 to 0.07 ton/m 2 Correspondingly, under the condition of meeting the same bearing requirement of the steel bridge, the steel bridge pavement structure in the scheme can greatly improve the safety coefficient of the steel bridge.
Example 2
A steel bridge deck pavement structure, as shown in reference to example 1 and in connection with fig. 4, is mainly different from example 1 in that: the anti-slip layer 5 adopts a modified methacrylic resin layer with the thickness of 5 mm; the high polymer prefabricated section layer 4 is a hollow section layer prefabricated by modified ASA, the thickness of the high polymer prefabricated section layer is 40mm, the hollow rate is 30%, and the hole corresponding to the hollow part is a round hole; the thickness of the elastic transition layer 3 is 15mm.
Example 3
A steel bridge deck pavement structure, referring to example 1, which is mainly different from example 1 in that: the anti-slip layer 5 is a modified methacrylic resin layer with the thickness of 6 mm; the high polymer prefabricated section layer 4 is a hollow section layer prefabricated by PA alloy, the thickness of the high polymer prefabricated section layer is 30mm, the hollow rate is 70%, and the hole corresponding to the hollow part is a square hole; the thickness of the elastic transition layer 3 is 12mm.
In the remaining embodiments, reference is made to implementation 1, wherein: the thickness of the anti-corrosion layer can be selected within the range of 0.05-0.8mm, the thickness of the elastic transition layer can be selected within the range of 5-10mm, the thickness of the macromolecule prefabricated section bar layer can be selected within the range of 30-35mm, and the thickness of the anti-slip layer can be selected within the range of 4-6 mm; the high polymer prefabricated section layer can also adopt PVC alloy.
The steel bridge deck pavement structure can not cause distortion and buckling deformation of the steel bridge deck no matter because of bridge deck dynamic load transformation or disturbance of the steel bridge caused by wind power in the use process, and the problem that the steel bridge deck generates distortion and buckling deformation in the use process is skillfully solved.
The durability test was performed on the steel deck pavement layers in the foregoing examples 1 to 3, and the results are shown in table 1 below.
TABLE 1 test results for examples 1-3
| Test item | Example 1 | Example 2 | Example 3 |
| 25 ℃ and drawing strength/MPa of steel plate | 2.71 | 2.87 | 2.35 |
| 25 ℃ and shearing strength/MPa of steel plate | 3.08 | 3.34 | 2.48 |
| 60 ℃ and drawing strength/MPa of steel plate | 1.71 | 1.94 | 1.22 |
| 60 ℃ and shearing strength/MPa of steel plate | 1.77 | 1.79 | 1.11 |
| Five-point bending fatigue life/ten thousand times | >200 | >200 | >200 |
The steel bridge deck pavement structure not only has excellent low-temperature cracking resistance and fatigue resistance, solves the problem of low-temperature cracking of the steel bridge deck pavement structure in the use process in winter, but also has excellent wear resistance and fracture resistance, and also has excellent high stability and load deformation resistance, and the advantages of the epoxy asphalt mixture pavement structure and the concrete pavement structure can be taken into consideration under the condition that the epoxy asphalt mixture and the concrete are not adopted, so that the long service life of the ultrathin steel bridge deck pavement structure is truly realized; by adopting the steel bridge deck pavement structure, in the use process, no matter the bridge deck dynamic load transformation or the disturbance of the steel bridge caused by wind power is caused, the steel bridge deck is not deformed by torsion and buckling, and the problems of the ultra-large span steel bridge deck that the steel bridge deck is deformed by torsion and buckling in the use process are skillfully solved; compared with the existing conventional steel bridge deck asphalt concrete pavement structure, the steel bridge deck pavement structure can reduce the constant load of the steel bridge deck pavement by 30% -60%, and the bearing requirement and the construction difficulty of the ultra-large span steel bridge are substantially reduced; under the condition of meeting the same bearing requirement of the steel bridge, the steel bridge deck pavement structure can greatly improve the safety coefficient of the ultra-large span steel bridge; the steel bridge pavement structure has high strength, moderate modulus and ingenious structure, can thoroughly isolate moisture, forms an integrated functional layer of adhesion, water resistance, buffering and wear resistance, ensures the water resistance of the steel bridge pavement, prolongs the service life of the steel bridge pavement structure and reduces maintenance cost; the construction process of the steel bridge deck pavement structure is very convenient, and the pavement main body material can be prefabricated in factories and assembled on site.
Claims (8)
1. The utility model provides a steel bridge face structure of mating formation which characterized in that: the paving structure comprises an anti-corrosion layer, an elastic transition layer, a bonding layer, a high-polymer prefabricated section bar layer and an anti-skid layer which are sequentially paved on the steel bridge deck; the elastic transition layer has self-leveling property, the elastic recovery rate is not less than 98 percent, the compression ratio is not more than 4 percent, the elastic transition layer is prepared by blending reactive resin and filler with the particle size of less than 5mm, and the reactive resin is one or a combination of more of polyurethane, modified epoxy resin, methacrylic resin, liquid silicone rubber and liquid polysulfide rubber or a modified product thereof; the bonding layer adopts a resin adhesive; the high-molecular prefabricated section layer adopts a spliced structure, adjacent prefabricated modules are connected in a lap joint or clamping way, and the surfaces of the connected different prefabricated modules are positioned on the same horizontal plane; the anti-slip layer is prepared by blending reactive resin and aggregate with the particle size of 2-10mm, wherein the aggregate is a blend of inorganic mineral aggregate and organic material, and the polymer prefabricated section layer is ASA alloy, PA alloy or PVC alloy; the high-molecular prefabricated section bar layer is hollow structure, and adjacent prefabricated modules adopt the connecting piece to connect.
2. The steel bridge deck pavement structure of claim 1, wherein: the thickness of the anti-corrosion layer is 0.03-0.1mm, the thickness of the elastic transition layer is 2-20mm, the thickness of the polymer prefabricated section bar layer is 10-50mm, and the thickness of the anti-slip layer is 2-10mm.
3. The steel bridge deck pavement structure of claim 1, wherein: the thickness of the anti-corrosion layer is 0.05-0.8mm, the thickness of the elastic transition layer is 5-10mm, the thickness of the polymer prefabricated section bar layer is 30-35mm, and the thickness of the anti-slip layer is 4-6mm.
4. A steel bridge deck pavement structure according to claim 1, 2 or 3, characterized in that: the reactive resin is modified epoxy resin, and the powder-gel ratio is powder: glue = 75:25, aggregate is iron steel sand: carborundum: the mass ratio of the rubber powder is 2:2: 1.
5. The steel bridge deck pavement structure of claim 4, wherein: the hollow rate of the polymer prefabricated section layer is 30-70%.
6. The steel bridge deck pavement structure of claim 1, wherein: the section bar of the connecting piece can be aluminum material, copper material, stainless steel material or plastic steel section bar which meets the mechanical property requirement.
7. The steel bridge deck pavement structure of claim 6, wherein: the wall thickness of the profile of the connecting piece is not more than 1/3 of the wall thickness of the polymer prefabricated profile layer 4.
8. The use of the steel bridge deck pavement structure according to any one of claims 1-7 in ultra-large span steel bridges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210354805.0A CN114808690B (en) | 2020-07-03 | 2020-07-03 | Steel bridge deck pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010635098.3A CN111705653B (en) | 2020-07-03 | 2020-07-03 | Steel bridge deck pavement structure |
| CN202210354805.0A CN114808690B (en) | 2020-07-03 | 2020-07-03 | Steel bridge deck pavement structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010635098.3A Division CN111705653B (en) | 2020-07-03 | 2020-07-03 | Steel bridge deck pavement structure |
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| CN114808690B true CN114808690B (en) | 2023-07-18 |
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| JP2630905B2 (en) * | 1993-10-29 | 1997-07-16 | 福井県 | Bridge containing heat storage agent |
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Also Published As
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| CN111705653B (en) | 2022-04-26 |
| CN114808690A (en) | 2022-07-29 |
| CN111705653A (en) | 2020-09-25 |
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