CN108589518B - Super-high-performance concrete steel bridge deck pavement structure and construction method thereof - Google Patents
Super-high-performance concrete steel bridge deck pavement structure and construction method thereof Download PDFInfo
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- CN108589518B CN108589518B CN201810390890.XA CN201810390890A CN108589518B CN 108589518 B CN108589518 B CN 108589518B CN 201810390890 A CN201810390890 A CN 201810390890A CN 108589518 B CN108589518 B CN 108589518B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 105
- 239000010959 steel Substances 0.000 title claims abstract description 105
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 239000004574 high-performance concrete Substances 0.000 title description 4
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 125
- 239000003822 epoxy resin Substances 0.000 claims abstract description 32
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 32
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 152
- 239000012790 adhesive layer Substances 0.000 claims description 21
- 238000005336 cracking Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 9
- 239000003566 sealing material Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
Classifications
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- 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
-
- 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
Abstract
The invention provides an ultra-high-performance concrete steel bridge deck pavement structure which is paved on a steel bridge deck. Each shear key is fixedly connected to the steel bridge deck; the epoxy resin layer is laid on the steel bridge deck; the ultra-high performance concrete layer is paved on the epoxy resin layer, and a plurality of deformation joints extending along the width direction of the steel bridge deck are formed in the ultra-high performance concrete layer; and dividing the ultra-high performance concrete layer into a plurality of ultra-high performance concrete layer sections by the deformation joints, and arranging the shear keys on the steel bridge deck plates corresponding to the peripheral edges of the ultra-high performance concrete layer sections. The invention eliminates the stressed reinforcing steel bar net in the ultra-high performance concrete layer, reduces the number of shear keys and furthest reduces the influence on concrete construction and maintenance through reasonable design.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an ultra-high-performance concrete steel bridge deck pavement structure and a construction method thereof.
Background
In recent years, ultra-high performance concrete is applied to a steel bridge deck pavement structure due to excellent mechanical properties, so that the pavement thickness can be reduced, the weight of a bridge deck system can be reduced, the local rigidity of the bridge deck system can be improved, and the fatigue life of pavement and a steel bridge deck plate can be prolonged.
In the existing steel bridge deck ultra-high performance concrete pavement, in order to realize the integral stress of a pavement structure and a steel bridge deck, an interlayer connection mode of densely distributing shear keys is adopted between a pavement layer and the steel bridge deck. The densely arranged shear keys not only can cause inconvenience to the construction of the ultra-high performance concrete pavement layer, but also can greatly increase the maintenance difficulty in the subsequent use period.
In the existing steel bridge deck ultra-high performance concrete pavement, due to the existence of larger temperature and shrinkage stress, a large number of stressed reinforcing steel meshes which are densely distributed are often arranged in a concrete pavement layer, and the spacing between the reinforcing steel bars is less than 100mm. Because the plasticity of the ultra-high performance concrete is generally lower than that of common concrete, the densely distributed reinforcing steel bar net greatly increases the construction difficulty of the ultra-high performance concrete layer, and the casting is possibly not compact, the forming quality of the ultra-high performance concrete layer, particularly the thin ultra-high performance concrete layer, is seriously influenced, and potential threat is caused to the service performance of a pavement structure.
Therefore, for the situation that the ultra-high-performance concrete is applied to steel bridge deck pavement, the existing interlayer connection mode and densely distributed reinforcing steel bar meshes can cause the increase of construction and maintenance difficulty of the ultra-high-performance concrete, the construction quality is difficult to guarantee, potential threat is caused to the service performance of a pavement structure, and the large-scale popularization and application of the ultra-high-performance concrete in steel bridge deck pavement are not facilitated.
Disclosure of Invention
In view of the above, the invention provides an ultra-high performance concrete steel bridge deck pavement structure and a construction method thereof, wherein a composite mode of bonding a local shear key and epoxy is adopted for interlayer connection of a steel bridge deck and an ultra-high performance concrete layer, so that the connection is reliable, and the influence on concrete construction and post maintenance can be reduced to the greatest extent due to fewer shear keys. Meanwhile, by arranging constructional measures such as deformation joints, the stress reinforcing steel bar net in the ultra-high performance concrete layer is eliminated, so that the overall economy is improved, the ultra-high performance concrete construction is greatly facilitated, the forming quality of the ultra-high performance concrete layer, particularly the thin ultra-high performance concrete layer, is ensured, and the ultra-high performance concrete layer has good long-term service performance.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a super high performance concrete steel bridge deck structure of mating formation lays on steel bridge deck, super high performance concrete steel bridge deck structure of mating formation includes: a plurality of shear keys, an epoxy resin layer and an ultra-high performance concrete layer. The lower end of each shear key is fixedly connected to the steel bridge deck; the epoxy resin layer is laid on the steel bridge deck; the ultra-high performance concrete layer is paved on the epoxy resin layer, and a plurality of deformation joints extending along the width direction of the steel bridge deck are formed in the ultra-high performance concrete layer; and dividing the ultra-high performance concrete layer into a plurality of ultra-high performance concrete layer sections by the deformation joints, and arranging the shear keys on the steel bridge deck plates corresponding to the peripheral edges of the ultra-high performance concrete layer sections.
The ultra-high performance concrete steel bridge deck pavement structure is further improved in that the epoxy resin layer comprises an adhesive layer and a waterproof layer, the waterproof layer is paved on the steel bridge deck, and the adhesive layer is arranged between the waterproof layer and the ultra-high performance concrete layer.
The ultra-high performance concrete steel bridge deck pavement structure is further improved in that elastic sealing materials are arranged in the deformation joints.
The ultra-high performance concrete steel bridge deck pavement structure is further improved in that anti-cracking cloth is paved above the ultra-high performance concrete layer, and the top of the deformation joint is covered by the anti-cracking cloth.
The ultra-high performance concrete steel bridge deck pavement structure is further improved in that a wearing layer is further covered above the ultra-high performance concrete layer, and the anti-cracking layer is arranged between the wearing layer and the ultra-high performance concrete layer.
The ultra-high performance concrete steel bridge deck pavement structure is further improved in that the distance between two adjacent shear keys is 200-400 mm.
The invention further improves the ultra-high performance concrete steel bridge deck pavement structure, wherein diaphragm plates are arranged below the steel bridge deck at intervals, the interval between the deformation joint and the diaphragm plates is not less than one fourth of the interval between two adjacent diaphragm plates, and the interval range between the two adjacent deformation joints is 20-120 m.
The invention relates to a construction method of an ultra-high performance concrete steel bridge deck pavement structure, which comprises the following steps:
treating a steel bridge deck plate, and performing shot blasting rust removal treatment on the top surface of the steel bridge deck plate;
positioning deformation joints, respectively arranging isolation plates at the positioning positions of the deformation joints, and fixing the isolation plates on the steel bridge deck;
constructing shear keys, wherein the shear keys are arranged on the peripheral edge of the steel bridge deck, and the shear keys are respectively arranged on two opposite sides of the positioning position of each deformation joint;
constructing an epoxy resin layer and an ultra-high performance concrete layer, arranging the epoxy resin layer on the steel bridge deck, and arranging the ultra-high performance concrete layer on the epoxy resin layer;
and (5) processing the deformation joint, and taking out the isolation plate after the ultra-high performance concrete layer is completely formed.
In the construction epoxy resin layer and the ultra-high performance concrete layer of the construction method, the epoxy resin layer comprises a waterproof layer and an adhesive layer, the waterproof layer is firstly arranged on the steel bridge deck, after the waterproof layer is solidified and formed, the adhesive layer is arranged on the waterproof layer in a segmented mode according to the positioning position of the deformation joint, and the ultra-high performance concrete layer is synchronously arranged on the adhesive layer.
The construction method further comprises a construction wearing layer, wherein the construction steps of the construction wearing layer are as follows: roughening treatment is firstly carried out on the top surface of the ultra-high performance concrete layer, and then the wearing layer is paved on the ultra-high performance concrete layer.
The invention adopts the technical proposal, which has the following beneficial effects:
(1) The interlayer connection of the steel bridge deck and the ultra-high performance concrete layer adopts a composite mode of bonding the local shear key and the epoxy, so that the connection is reliable, and the influence on concrete construction and later maintenance can be reduced to the greatest extent because the shear key is arranged less.
(2) By arranging constructional measures such as deformation joints, the invention cancels the stressed reinforcing mesh arranged in the ultra-high performance concrete layer in the prior art, thereby not only improving the overall economy, but also greatly facilitating the concrete construction, ensuring the molding quality of the ultra-high performance concrete layer, especially the thin ultra-high performance concrete layer, and having good long-term use performance.
(3) The epoxy resin layer comprises an adhesive layer and a waterproof layer, and the waterproof layer is paved on the steel bridge deck and is used for protecting the steel bridge deck from being corroded by external water; the bonding layer is arranged between the waterproof layer and the ultra-high performance concrete layer, and bonds the ultra-high performance concrete layer and the steel bridge deck into a whole.
(4) The deformation joint is filled with the elastic sealing material, so that additional force generated by temperature, shrinkage and the like in the ultra-high performance concrete layer can be released, and the steel bridge deck plate can be protected from being corroded by external water.
(5) Compared with the prior art, the deformation joint is arranged in the ultra-high performance concrete layer without the configuration of the steel bars, so that the design thickness of the concrete can be reduced according to actual needs, the dead weight of the ultra-high performance concrete steel bridge deck pavement structure is further reduced, the light weight of the ultra-high performance concrete steel bridge deck pavement structure is realized, and the stress condition of the whole bridge structure is improved.
Drawings
Fig. 1 is a schematic diagram of a partial top view structure of the ultra-high performance concrete steel bridge deck pavement structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the structure of the invention at A-A in FIG. 1.
FIG. 3 is a schematic cross-sectional view of the structure of the invention at B-B in FIG. 1.
Reference numerals illustrate:
an epoxy resin layer 10; an adhesive layer 11; a waterproof layer 12; an ultra-high performance concrete layer 20; an ultra-high performance concrete layer segment 21; a shear key 30; deformation joint 40; an elastic sealing material 50; an anti-cracking cloth 60; wearing layer 70; a diaphragm 80; steel bridge deck 90.
Detailed Description
In order to facilitate the understanding of the present invention, the following description is provided with reference to the drawings and examples.
Referring to fig. 1 to 3, the present invention provides an ultra-high performance concrete steel bridge deck pavement structure paved on a steel bridge deck 90, the ultra-high performance concrete steel bridge deck pavement structure comprising: an epoxy resin layer 10, an ultra-high performance concrete layer 20, and a plurality of shear keys 30. Wherein:
as shown in fig. 2 and 3, the lower end of each shear key 30 is fixedly connected to the steel bridge deck 90; in particular, the distance between two adjacent shear keys 30 ranges from 200mm to 400mm, the distance between the shear keys 30 and the edge of the steel bridge deck 90 and the distance between the shear keys and the deformation joint 40 range from 100mm to 300mm, and the arrangement of the shear keys 30 at such intervals reduces the number of the shear keys 30, and can furthest reduce the influence on concrete construction and later maintenance.
In a preferred embodiment of the present invention, the shear key 30 may be, but is not limited to, shear studs, U-bars, PBL shear keys and short bars, and preferably the shear key 30 is, but not limited to, shear studs, which can be adjusted according to the actual construction situation.
As shown in fig. 2 and 3, the epoxy resin layer 10 is laid on the steel deck plate 90; specifically, the epoxy resin layer 10 includes an adhesive layer 11 and a waterproof layer 12, the waterproof layer 12 is laid on the steel bridge deck 90, and the adhesive layer 11 is provided between the waterproof layer 12 and the ultra-high performance concrete layer 20. In particular, the layer thickness of the waterproof layer 12 may be 0.2mm to 0.7mm for protecting the steel bridge deck 90 from external water; the thickness of the adhesive layer 11 may be 0.5mm to 1mm, and the ultra-high performance concrete layer 20 is bonded to the steel bridge deck 90 as a whole.
In a preferred embodiment of the present invention, the epoxy resin layer 10 may be formed by condensing epoxy resin, and the initial setting time of the epoxy resin is not less than 2 hours at normal temperature.
As shown in fig. 2 and 3, the ultra-high performance concrete layer 20 is laid on the epoxy resin layer 10. As shown in fig. 1 and 3, the ultra-high performance concrete layer 20 is internally formed with a plurality of deformation joints 40 extending in the width direction of the steel deck plate 90, and it should be noted that the width direction of the steel deck plate 90 in the present invention is the width direction of the ultra-high performance concrete layer 20 in fig. 1. By arranging the deformation joint 40, the stressed reinforcing mesh arranged in the ultra-high performance concrete layer 20 in the prior art is eliminated, so that the overall economy is improved, the concrete construction is greatly facilitated, the forming quality of the ultra-high performance concrete layer 20 is ensured, and the ultra-high performance concrete layer 20 has good long-term use performance; preferably, as shown in fig. 1 and 3, the elastic sealing material 50 is disposed inside the deformation joint 40, which can release additional force generated by temperature, shrinkage and the like in the ultra-high performance concrete layer 20 and protect the steel bridge deck 90 from external water erosion; further, as shown in fig. 1 and 3, an anti-cracking cloth 60 is laid above the ultra-high performance concrete layer 20, and the anti-cracking cloth 60 is covered on two opposite sides of the top of the deformation joint 40 within 1 m; further, as shown in fig. 2 and 3, a wearing layer 70 is further covered on the ultra-high performance concrete layer 20, and an anti-cracking arrangement 60 is disposed between the wearing layer 70 and the ultra-high performance concrete layer 20.
The deformation joints 40 are respectively used for dividing the ultra-high performance concrete layer 20 into a plurality of ultra-high performance concrete layer segments 21, and the shear keys 30 are respectively arranged in 2-3 rows along the steel bridge decks 90 corresponding to the peripheral edges of the ultra-high performance concrete layer segments 21.
In a preferred embodiment of the present invention, the ultra-high performance concrete layer 20 may be cast of ultra-high performance concrete, which is cement concrete containing reinforcing fibers and no coarse aggregate in its components, and has an axial tensile strength of not less than 7MPa and an elastic modulus of not less than 30GPa.
In a preferred embodiment of the present invention, the elastic sealing material 50 may be, but not limited to, silicone-based sealant, polyurethane-based sealant and polysulfide-based sealant, and preferably, the elastic sealing material 50 is, but not limited to, silicone-based sealant, which can be adjusted according to practical construction conditions.
In a preferred embodiment of the present invention, the anti-cracking cloth 60 may be a polyester glass cloth, but is not limited thereto, and may be adjusted according to actual construction conditions.
Further, the diaphragm plates 80 are arranged at intervals below the steel bridge deck 90, and the interval between the deformation joint 40 and the diaphragm plates 80 is not less than one quarter of the interval between two adjacent diaphragm plates 80. Specifically, the distance between two adjacent deformation joints 40 is 20 m-120 m, the joint length of the deformation joints 40 is the same as the width of the steel bridge deck 90, the joint height of the deformation joints 40 is the same as the layer height of the ultra-high performance concrete layer 20, and the joint width of the deformation joints 40 is 5 mm-15 mm.
The invention relates to a construction method of an ultra-high performance concrete steel bridge deck pavement structure, which comprises the following steps:
treating the steel bridge deck 90, and performing shot blasting rust removal on the top surface of the steel bridge deck 90;
positioning deformation joints 40, as shown in fig. 1, firstly determining the positions of the deformation joints 40 according to specific construction conditions, then respectively arranging isolation plates (not shown) at the positioning positions of the deformation joints 40, and fixing the isolation plates on a steel bridge deck 90;
2-3 rows of shear keys 30 are respectively arranged on the peripheral edge of the steel bridge deck 90, and 2-3 rows of shear keys 30 are respectively arranged on two opposite sides of the positioning position of each deformation joint 40;
the epoxy resin layer 10 and the ultra-high performance concrete layer 20 are constructed, as shown in fig. 2 and 3, the epoxy resin layer 10 comprises a waterproof layer 12 and an adhesive layer 11, epoxy resin is firstly coated on a steel bridge deck 90 to form the waterproof layer 12, after the waterproof layer 12 is solidified and formed, epoxy resin is coated on the waterproof layer 12 according to the positioning position of a deformation joint 40 to form the adhesive layer 11, when one section of the adhesive layer 11 is coated, concrete is immediately poured on the adhesive layer 11 to form the ultra-high performance concrete layer 20, after the section of the ultra-high performance concrete layer 20 is poured, the next section of the adhesive layer 11 is coated, and the steps are carried out until the construction of all the adhesive layers 11 and the ultra-high performance concrete layer 20 is completed;
treating the deformation joint 40, as shown in fig. 3, taking out the isolation plate after the ultra-high performance concrete layer 20 is completely formed, then effectively cleaning the deformation joint 40, filling the elastic sealing material 50, and paving an anti-cracking cloth 60 on the top of the deformation joint 40;
and constructing a wearing layer 70, as shown in fig. 2 and 3, roughening the top surface of the ultra-high performance concrete layer 20, and then paving the wearing layer 70 above the ultra-high performance concrete layer 20 to finish the construction of the ultra-high performance concrete steel bridge deck pavement structure.
In the steel bridge deck plate treated by the construction method of the ultra-high performance concrete steel bridge deck pavement structure, after the shot blasting treatment is finished, the cleanliness and the roughness of the steel bridge deck plate 90 are also checked immediately, the cleanliness reaches more than Sa2.5 level, and the roughness is within 40-100 mu m.
In the construction shear key of the construction method of the ultra-high performance concrete steel bridge deck pavement structure, the distance between the shear key 30 and the splicing weld joint of the steel bridge deck 90 is not less than 20mm.
Compared with the prior art, the deformation joint 40 is arranged in the ultra-high performance concrete layer 20 without the configuration of the steel bars, so that the design thickness of the concrete can be reduced according to actual needs, the dead weight of the ultra-high performance concrete steel bridge deck pavement structure is further reduced, the light weight of the ultra-high performance concrete steel bridge deck pavement structure is realized, and the stress condition of the whole bridge structure is improved.
The present invention has been described in detail with reference to the drawings and embodiments, and one skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a structure of mating formation of ultra-high performance concrete steel bridge deck, lays on steel bridge deck, its characterized in that, the structure of mating formation of ultra-high performance concrete steel bridge deck includes:
the lower ends of the shear keys are fixedly connected to the steel bridge deck;
the epoxy resin layer is laid on the steel bridge deck;
the ultra-high performance concrete layer is paved on the epoxy resin layer, and a plurality of deformation joints extending along the width direction of the steel bridge deck are formed in the ultra-high performance concrete layer;
and dividing the ultra-high performance concrete layer into a plurality of ultra-high performance concrete layer sections by the deformation joints, and arranging the shear keys on the steel bridge deck plates corresponding to the peripheral edges of the ultra-high performance concrete layer sections.
2. The ultra-high performance concrete steel bridge deck pavement structure of claim 1, wherein the epoxy resin layer comprises an adhesive layer and a waterproof layer, the waterproof layer is paved on the steel bridge deck, and the adhesive layer is arranged between the waterproof layer and the ultra-high performance concrete layer.
3. The ultra-high performance concrete steel bridge deck pavement structure according to claim 1, wherein an elastic sealing material is arranged inside the deformation joint.
4. The ultra-high performance concrete steel bridge deck pavement structure according to claim 1, wherein an anti-cracking cloth is laid above the ultra-high performance concrete layer, and the top of the deformation joint is covered by the anti-cracking cloth.
5. The ultra-high performance concrete steel bridge deck pavement structure according to claim 4, further comprising a wearing layer covering the ultra-high performance concrete layer, wherein the anti-cracking layer is arranged between the wearing layer and the ultra-high performance concrete layer.
6. The ultra-high performance concrete steel bridge deck pavement structure according to claim 1, wherein the distance between two adjacent shear keys is in the range of 200 mm-400 mm.
7. The ultra-high performance concrete steel bridge deck pavement structure according to claim 1, wherein diaphragm plates are arranged below the steel bridge deck at intervals, the interval between the deformation joints and the diaphragm plates is not smaller than one fourth of the interval between two adjacent diaphragm plates, and the interval range between two adjacent deformation joints is 20-120 m.
8. The construction method of the ultra-high performance concrete steel bridge deck pavement structure is characterized by comprising the following steps of:
treating a steel bridge deck plate, and performing shot blasting rust removal treatment on the top surface of the steel bridge deck plate;
positioning deformation joints, respectively arranging isolation plates at the positioning positions of the deformation joints, and fixing the isolation plates on the steel bridge deck;
constructing shear keys, wherein the shear keys are arranged on the peripheral edge of the steel bridge deck, and the shear keys are respectively arranged on two opposite sides of the positioning position of each deformation joint;
constructing an epoxy resin layer and an ultra-high performance concrete layer, arranging the epoxy resin layer on the steel bridge deck, and arranging the ultra-high performance concrete layer on the epoxy resin layer;
and (5) processing the deformation joint, and taking out the isolation plate after the ultra-high performance concrete layer is completely formed.
9. The construction method of the ultra-high performance concrete steel bridge deck pavement structure according to claim 8, wherein in the construction epoxy resin layer and the ultra-high performance concrete layer of the construction method, the epoxy resin layer comprises a waterproof layer and an adhesive layer, the waterproof layer is firstly arranged on the steel bridge deck, after the waterproof layer is solidified and formed, the adhesive layer is arranged on the waterproof layer in a segmented mode according to the positioning position of the deformation joint, and the ultra-high performance concrete layer is synchronously arranged on the adhesive layer.
10. The construction method of the ultra-high performance concrete steel bridge deck pavement structure according to claim 8, further comprising a construction wearing layer, wherein the construction step of the construction wearing layer is as follows: roughening treatment is firstly carried out on the top surface of the ultra-high performance concrete layer, and then the wearing layer is paved on the ultra-high performance concrete layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810390890.XA CN108589518B (en) | 2018-04-27 | 2018-04-27 | Super-high-performance concrete steel bridge deck pavement structure and construction method thereof |
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| CN201810390890.XA CN108589518B (en) | 2018-04-27 | 2018-04-27 | Super-high-performance concrete steel bridge deck pavement structure and construction method thereof |
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| CN108589518B true CN108589518B (en) | 2024-03-12 |
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| CN109208474A (en) * | 2018-11-06 | 2019-01-15 | 长沙理工大学 | A kind of steel-UHPC the combined bridge deck structure and construction method of non-arrangement of reinforcement |
| WO2021120138A1 (en) * | 2019-12-20 | 2021-06-24 | 江苏中路交通科学技术有限公司 | Ultra-high-performance concrete pavement structure and construction method thereof |
| CN113356066B (en) * | 2021-06-11 | 2022-08-26 | 中交一公局厦门检测技术有限公司 | Rapid and efficient construction process for paving UHPC on steel bridge deck |
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| KR20110061060A (en) * | 2009-12-01 | 2011-06-09 | (주)석탑엔지니어링 | Composite bridge construction method |
| CN101858052A (en) * | 2010-06-30 | 2010-10-13 | 湖南大学 | Steel and ultra-high performance concrete combined bridge deck structure |
| CN102943436A (en) * | 2012-12-07 | 2013-02-27 | 湖南大学 | Steel-ultra-high performance concrete combined bridge deck structure with shearing resisting structure and construction method thereof |
| CN107245947A (en) * | 2017-06-29 | 2017-10-13 | 上海罗洋新材料科技有限公司 | A kind of reinforced concrete structure containing early-strength ultra-high performance concrete |
| CN208293416U (en) * | 2018-04-27 | 2018-12-28 | 上海市市政规划设计研究院有限公司 | Ultra-high performance concrete bridge deck pavement structure |
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| CN108589518A (en) | 2018-09-28 |
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