CN108867369A - Bridge deck pavement structure - Google Patents
Bridge deck pavement structure Download PDFInfo
- Publication number
- CN108867369A CN108867369A CN201810285654.1A CN201810285654A CN108867369A CN 108867369 A CN108867369 A CN 108867369A CN 201810285654 A CN201810285654 A CN 201810285654A CN 108867369 A CN108867369 A CN 108867369A
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- Prior art keywords
- bridge deck
- layer
- pavement structure
- fibre reinforced
- reinforced materials
- Prior art date
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- 239000000835 fiber Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- 229920002635 polyurethane Polymers 0.000 claims abstract description 36
- 239000004814 polyurethane Substances 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 239000002657 fibrous material Substances 0.000 claims abstract description 8
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 claims abstract description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 47
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 239000010426 asphalt Substances 0.000 description 4
- 239000011384 asphalt concrete Substances 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004574 high-performance concrete Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- -1 aromatic isocyanate Chemical class 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006306 polyurethane fiber Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to the technical field of bridge deck pavement of science of bridge building, specifically disclose a kind of bridge deck pavement structure, including the boundary layer, composite layer and wearing course for being laid with and being mutually bonded from the bottom to top；Boundary layer is to cohere the urethane resin layer for having fibrous material；Composite layer is polyurethane fibre reinforced materials plate layer；Wearing course is concrete abrasion layer.The present invention passes through the combination of polyurethane fibre reinforced materials plate and boundary layer and wearing course, strengthen the bending resistance anti-pressure ability of Steel Bridge Deck entirety, there is the problem of deformation crack in the steel plate being able to solve between Steel Bridge Deck deep floor, solve the problems, such as the shear resistance of Steel Bridge Deck and pave-load layer, the fracture crack and fatigue damage of Steel Bridge Deck can be repaired, and convenient and quick construction shortens the curing cycle of Surfacing Construction process.
Description
Technical field
The present invention relates to the technical field of bridge deck pavement of science of bridge building, more particularly to a kind of bridge deck pavement structure.
Background technique
At present steel bridge especially orthotropic steel bridge deck with more and more extensive, existing deck paving scheme master
Including：1, pouring asphalt concrete is mated formation；2, epoxy asphalt concrete is mated formation；3, common SMA bitumastic concrete
Mat formation；4, high performance concrete and asphalt wearing layer combination paving etc..Above-mentioned each scheme has its shortcoming：
Pouring asphalt concrete is mated formation in construction casting since asphalt temperature is higher, and the flexible of Steel Bridge Deck is easily caused
Deformation, thus it is more demanding to the flexible ductility of pavement material, otherwise it is easy to appear pave-load layer crack；
Brittleness is larger after epoxy asphalt concrete solidification, and shock resistance resists various stress (temperature, deformation etc.) difference in change；
Combination between common SMA bitumastic concrete and Steel Bridge Deck is not easy to solve, and easily causes the shearing resistance of concrete
Ability is inadequate, pave-load layer pushing phenomenon occurs, generates track and bulge；
When high performance concrete and asphalt wearing layer combination paving, need to improve the anti-of pave-load layer by welding WELDING STUDS
Ability is cut, but the welding of WELDING STUDS will increase the variation of Steel Bridge Deck stress, and concrete will increase the constant weight of Steel Bridge Deck, this
Outside, the site operation of concrete easily causes the hidden danger such as the compactness deficiency of concrete, leads to high performance concrete panel and steel bridge
Face cannot combine closely, and it is big that this scheme later period abolishes concrete difficulty, while there is also between asphalt wearing layer and concrete
Shearing resistance passage the problems such as.
Summary of the invention
The purpose of the present invention is to provide it is a kind of it is easy for construction, durability is good, the Steel Bridge Deck of light weight, high-strength and high-ductility
Paving structure.
The bridge deck pavement structure includes the boundary layer, composite layer and wearing course being laid with from the bottom to top；The interface
Layer is to cohere the urethane resin layer for having fibrous material；The composite layer is polyurethane fibre reinforced materials plate layer；Institute
Stating wearing course is concrete abrasion layer.
The present invention passes through the combination of polyurethane fibre reinforced materials plate and boundary layer and wearing course, strengthens Steel Bridge Deck
There is the problem of deformation crack in whole bending resistance anti-pressure ability, the steel plate being able to solve between Steel Bridge Deck deep floor, solve steel bridge
The shear resistance problem in face and pave-load layer can repair the fracture crack and fatigue damage of Steel Bridge Deck, and easy for construction fast
Victory shortens the curing cycle of Surfacing Construction process.
There is very high bending strength and rigidity by the composite layer that polyurethane fibre reinforced materials plate is formed, it can
It undertakes and homogenizes the concentration compression load of wheel, the effect being evenly distributed on Steel Bridge Deck is especially distributed to adding for Steel Bridge Deck
At rib, so that the deformation of Steel Bridge Deck is avoided, and due to the strength and stiffness of polyurethane fibre reinforced materials plate height, so
Whole bridge floor layer can greatly be thinned, to considerably reduce bridge floor constant weight.Especially for cross bridge floor board thickness
The bridge floor panel stiffness of degree≤14 increases, and improves the bending resistance of panel.
Due to polyurethane resin adhesive property with super strength, polyurethane fibre reinforced materials plate passes through polyurethane tree
Rouge boundary layer and Steel Bridge Deck are firmly bonded as an entirety, and bridge floor does not need welding WELDING STUDS, bridge floor shearing force can be made equal
It is transmitted to Steel Bridge Deck, evenly so as to solve the problems, such as Steel Bridge Deck because of stress deformation caused by the load of WELDING STUDS.?
In the case where being equipped with screed-coat, screed-coat can play levelling Steel Bridge Deck, fixing composite material layer and homogenize, transmit compression and
The function of shear load.
Due to the excellent toughness of curable urethane resin body and its superpower cohesive force, so steel deck paving of the invention
Dress layer has very strong absorption and conducts the ability of various stress, the temperature between bridge deck pavement structure and beam body different materials
The impact stress etc. that degree stress and vehicle cross bridge floor generation is difficult to destroy bridge deck structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the Steel Bridge Deck cross section of one embodiment of the present invention；
Fig. 2 is the structural schematic diagram in the paving structure cross section of one embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the paving structure vertical section of one embodiment of the present invention；
Fig. 4 is the fibre reinforced materials plate structural schematic diagram of one embodiment of the present invention；
Fig. 5 is the fibre reinforced materials plate structural schematic diagram of another embodiment of the present invention.
Specific embodiment
As shown in Figure 1, 2, one embodiment of the invention discloses a kind of bridge deck pavement structure, including on Steel Bridge Deck 20
It is equipped with composite construction 10, which includes boundary layer 13, the polyurethane successively mated formation and be mutually bonded from the bottom to top
Base fibre reinforced materials plate 12 and wearing course 11.
Boundary layer 13 is cohered on Steel Bridge Deck 20 by polyurethane resin and fibrous material to be formed by curing.The work of boundary layer 13
With to close Steel Bridge Deck, it is allowed to be isolated with moisture；It is formed simultaneously one layer of fine and close polar polymer surface, is enabled with poly-
Urethano fibre reinforced materials plate 12 closely coheres；Additionally become a shear stress transfer layer, make entire Steel Bridge Deck 20 and
The internal shearing stress that composite construction 10 generates in use can be equably distributed in boundary layer 13, be unlikely to produce
The sliding of raw boundary layer 13.
Fibrous material in boundary layer 13 can be enhanced 13 intensity of boundary layer, and the stress that disperses in boundary layer 13 prevents boundary
The diffusion of 13 crackle of surface layer.Fibrous material includes but is not limited to glass fibre, basalt fibre, polymer fiber, inorganic compound
It is one or more in whisker.It is 10~200g/m that grammes per square metre, which can be used, in fiber2Grid cloth, grid be having a size of 1~15mm × 1~
The square of 15mm.
Polyurethane fibre reinforced materials plate 12 is using polyurethane resin as matrix, with glass fibre, carbon fiber or the Black Warrior
One or more of rock fiber is the plate of material of reinforcement, preferably using glass fibre as reinforcement.Polyurethane fiber
The surface of strengthening material flitch 12 preferably carries out hair pulling treatment.
The fibre reinforced materials plate that present embodiment is formed using polyurethane resin as matrix can pass through the works such as pultrusion
Skill is made, specifically may include constitute upper and lower surface glass mat and positioned at middle layer continuous one-way glass fiber without
Twist rove.The preferred continuous felt of glass mat or stitch-bonded felt, surface density are 100~900g/m2, one-way glass is fibre untwisted
The line density of rove is 1200~9600tex.
When being paved on Steel Bridge Deck 20, the extending direction of the fibre untwisted rove of one-way glass and the length side of Steel Bridge Deck 20
It is to vertical, i.e., vertical with vehicle to run direction, since polyurethane fibre reinforced materials plate 12 is being parallel to unidirectional fibre direction
On intensity and modulus it is high, when vehicle to run, the compression of generation can be by polyurethane fibre reinforced materials plate 12 as far as possible
It mostly is distributed on the ribs of Steel Bridge Deck 20, while polyurethane fibre reinforced materials plate 12 and 20 cooperative bearing of Steel Bridge Deck,
It is reduced as far as the compressive deformation of Steel Bridge Deck 20；Especially when wheel rolls between the ribs of Steel Bridge Deck 20, polyurethane
The compression of this concentration can be uniformly distributed in Steel Bridge Deck as an integrated deck by base fibre reinforced materials plate 12
On 20 ribs, and the glass mat for being distributed in upper and lower surface can then prevent polyurethane fibre reinforced materials plate from existing
It cracks perpendicular to unidirectional fibre direction.
In polyurethane fibre reinforced materials plate 12, the glass fibre and again that weight ratio is 60~80% is preferably comprised
Amount is than the polyurethane resin for 20~40%.Further, the weight ratio of glass fibre can be 70~78%, polyurethane resin
Weight ratio can be 22~30%.Glass fibre is more preferably alkali-free glass fibre.
Wearing course is formed by basalt bituminous concrete or other concrete.
Above-mentioned polyurethane fibre reinforced materials plate can be produced in factory lines, the direct pavement construction in scene, can also be with
Production uses at the scene.
It can be also laid with screed-coat 14 between boundary layer 13 and polyurethane fibre reinforced materials plate 12, especially in steel
When 20 deflection of bridge floor is larger.Screed-coat 14 pours after being mixed and stirred by polyurethane resin and filler (aggregate) to be solidified on boundary layer 13
It is formed.Screed-coat 14 is the transition zone between polyurethane fibre reinforced materials plate 12 and boundary layer 13, and on the one hand it is in convex-concave
A plane is formed on uneven boundary layer 13, conducive to mating formation for subsequent polyurethane base fibre reinforced materials plate 12, one side energy
It is enough that polyurethane fibre reinforced materials plate 12 is closely bonded on boundary layer 13, additionally it is possible to bear the increasing of polyurethane fiber
The compression and shear stress that strong plate of material 12 is transmitted.And filler can be bonded as an entirety by polyurethane resin, very
Play the role of well above-mentioned.The mixing of polyurethane resin and filler can be used paddle mixer and mix and stir, and mixes and stirs technique and preferably wraps
Containing the step of filler is dried, so that the moisture content of filler is less than 0.5%.
Aforementioned polyurethane resin can be by aromatic isocyanate, such as toluene di-isocyanate(TDI) or 4,4 '-diphenyl methanes
Diisocyanate or its homologue or oligomer or its prepolymer are obtained with polyol reaction.Polyalcohol viscosity is preferably small
In 1000mPa.s；And polyalcohol is preferably polyether polyol, and further, polyether polyol preferable weight-average molecular weight is greater than
500, degree of functionality is 2~5；It is 2~5 that more preferable polyether polyol weight average molecular weight, which is greater than 1000, degree of functionality, to be had
The polyurethane material of more obdurability.
As shown in Figure 3,4, the combination between reinforcement and adjacent layer solves the problems, such as shearing resistance on bridge deck structure, polyurethane
The face interval that fibre reinforced materials plate 12 is contacted with wearing course 11 is arranged to 12 inner-concave of polyurethane fibre reinforced materials plate
Into transverse concave groove 15, these transverse concave grooves 15 can prevent the wearing course of 12 upper surface of polyurethane fibre reinforced materials plate
11 slidings, improve anti-shear ability.
As shown in figure 5, transverse concave groove 15 can be set on the upper and lower surface of polyurethane fibre reinforced materials plate 12,
The transverse concave groove 15 of upper and lower surface can interlaced arrangement, the transverse concave groove 15 of interlaced arrangement can make to generate in vehicle travel process
Bridge floor shear stress be unlikely to become concentrated stress.The width of transverse concave groove 15 needs to be greater than or equal in wearing course 15 most
The partial size of big aggregate, is advisable, the depth of transverse concave groove 15 is greater than or equal to the partial size slightly larger than maximum aggregate in wearing course 15
The 2/3 of maximum diameter of aggrogate in wearing course 11, the 2/3 of maximum diameter of aggrogate preferably equal in wearing course 11.The structure can make to grind
Consumption layer 11 is embedded on polyurethane fibre reinforced materials plate 12, wearing course 11 and polyurethane fibre reinforced materials plate 12
Cohesive force and overall performance are good, and it is strong that interface shearing-resistance cuts ability.
As shown in Figure 4,5, the cross sectional shape of transverse concave groove 15 can be rectangle or arc, can also be semicircle or V-arrangement
Deng.
Illustrate the method for paving of bridge deck pavement structure of the present invention below with reference to above-described embodiment, its step are as follows：
1. clearing up bridge floor；
Then 2. boundary layer of mating formation is laid with fibrous material in Steel Bridge Deck flow coat polyurethane resin on polyurethane resin,
Form boundary layer；
3. molded polyurethane fibre reinforced materials plate is laid with by composite layer of mating formation before boundary layer solidifies
Composite layer is formed on boundary layer；Alternatively, being laid with screed-coat before boundary layer solidifies, will be had become before screed-coat solidification
The polyurethane fibre reinforced materials plate of type, which is laid on screed-coat, forms composite layer；
4. wearing course of mating formation, it is laid with concrete on composite layer after hardening, forms wearing course, completion was laid with
Journey.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein is exemplary
Embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly really
Determine or derive other variations or modifications for meeting the principle of the invention.Therefore, the scope of the invention should be understood and defined as covering
All such other variations or modifications are covered.
Claims (10)
1. a kind of bridge deck pavement structure, it is characterised in that：
Including the boundary layer, composite layer and wearing course being laid with from the bottom to top；
The boundary layer is to cohere the urethane resin layer for having fibrous material；
The composite layer is polyurethane fibre reinforced materials plate layer；
The wearing course is concrete abrasion layer.
2. bridge deck pavement structure according to claim 1, it is characterised in that：
Screed-coat is also equipped between the boundary layer and the composite layer；The screed-coat is by polyurethane resin and filler
It mixes and stirs to pour and be formed by curing on the boundary layer.
3. bridge deck pavement structure according to claim 1, it is characterised in that：
The polyurethane fibre reinforced materials plate includes constituting the glass mat of upper and lower surface and being located in the middle continuous
The fibre untwisted rove of one-way glass, the extending direction of the fibre untwisted rove of one-way glass and the length direction of the Steel Bridge Deck
Vertically.
4. bridge deck pavement structure according to claim 1, it is characterised in that：
Fibrous material in the boundary layer is that grammes per square metre is 10~200g/m2Grid cloth, grid be 1~15mm × 1~15mm
Square net.
5. bridge deck pavement structure according to claim 1, it is characterised in that：
Do hair pulling treatment in the surface of the polyurethane fibre reinforced materials plate.
6. bridge deck pavement structure according to claim 3, it is characterised in that：
The glass mat is continuous felt or stitch-bonded felt, and surface density is 100~900g/m2, the one-way glass is fibre untwisted thick
Thread density is 1200~9600tex.
7. bridge deck pavement structure according to claim 3, it is characterised in that：
Glass fiber weight ratio is 60~80% in the polyurethane fibre reinforced materials plate, and polyurethane resin weight ratio is 20
~40%.
8. bridge deck pavement structure according to claim 1, it is characterised in that：
The upper surface and/or lower surface of the polyurethane fibre reinforced materials plate are arranged at intervals with and the Steel Bridge Deck length side
To vertical transverse concave groove.
9. bridge deck pavement structure according to claim 8, it is characterised in that：
When the polyurethane fibre reinforced materials plate upper and lower surface is provided with transverse concave groove, the transverse concave groove of upper and lower surface is handed over
Mistake arrangement.
10. bridge deck pavement structure according to claim 8, it is characterised in that：
The width of the transverse concave groove is greater than or equal to maximum diameter of aggrogate in the wearing course, and depth is greater than or equal to the mill
Consume 2/3 of maximum diameter of aggrogate in layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285654.1A CN108867369A (en) | 2018-04-03 | 2018-04-03 | Bridge deck pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285654.1A CN108867369A (en) | 2018-04-03 | 2018-04-03 | Bridge deck pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108867369A true CN108867369A (en) | 2018-11-23 |
Family
ID=64326608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810285654.1A Pending CN108867369A (en) | 2018-04-03 | 2018-04-03 | Bridge deck pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108867369A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683358A (en) * | 2021-08-02 | 2021-11-23 | 青岛诚通建筑工程有限公司 | Construction process of reinforced concrete |
| CN114277681A (en) * | 2021-08-16 | 2022-04-05 | 宁波路宝科技实业集团有限公司 | Pavement structure of pedestrian steel bridge deck and construction method thereof |
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| CN114277681A (en) * | 2021-08-16 | 2022-04-05 | 宁波路宝科技实业集团有限公司 | Pavement structure of pedestrian steel bridge deck and construction method thereof |
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