CN211142811U - Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab - Google Patents
Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab Download PDFInfo
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- CN211142811U CN211142811U CN201921919677.XU CN201921919677U CN211142811U CN 211142811 U CN211142811 U CN 211142811U CN 201921919677 U CN201921919677 U CN 201921919677U CN 211142811 U CN211142811 U CN 211142811U
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- bridge deck
- hollow
- performance concrete
- concrete slab
- ultrahigh
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims description 15
- 239000006004 Quartz sand Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003491 array Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 19
- 238000010276 construction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Abstract
The utility model discloses a combined bridge deck structure adopting hollow ultrahigh-performance concrete slabs, which consists of a steel bridge deck and hollow ultrahigh-performance concrete slabs; the hollow ultrahigh-performance concrete slab is arranged on the upper end face of the steel bridge deck plate, and the concrete body of the hollow ultrahigh-performance concrete slab wraps the studs on the steel bridge deck plate; a plurality of hollow tubular structural bodies are arranged in the hollow ultrahigh-performance concrete slab, and the hollow tubular structural bodies are arranged in gaps of the stud arrays; a reinforcing mesh is arranged in a concrete body of the hollow ultrahigh-performance concrete slab; the hollow tubular structure body adopts a steel pipe, an FRP pipe or a PVC pipe; the utility model has the beneficial technical effects that: the scheme can effectively improve the bending resistance efficiency of the composite bridge deck slab, reduce the tensile stress borne by the ultra-high performance concrete slab and reduce the manufacturing cost of the composite bridge deck slab.
Description
Technical Field
The utility model relates to a combination decking especially relates to an adopt hollow ultra high performance concrete slab's combination bridge floor plate structure.
Background
The steel bridge deck is very widely applied to a large-span bridge due to the light dead weight of the steel bridge deck, but the steel bridge deck is easy to generate fatigue damage and the pavement structure is easy to damage due to the low local rigidity and dense welding lines of the steel bridge deck, and particularly under the action of an overloaded vehicle, the service life of the steel bridge deck and the pavement structure can be greatly shortened.
The ultra-high performance concrete (UHPC) is a novel fiber reinforced cement-based composite material, and has excellent tensile strength, compressive strength and durability; in the prior art, there are cases where ultra-high performance concrete is arranged on a steel bridge deck in a thin layer pouring manner (studs are arranged on the steel bridge deck, and the steel bridge deck and the ultra-high performance concrete layer are connected into a whole through the studs); experimental research and engineering application show that the ultra-high performance concrete arranged on the steel bridge deck can obviously improve the fatigue damage and pavement vulnerability of the steel bridge deck. There are problems in that:
the ultra-high performance concrete layer laid on the steel bridge deck slab needs to bear great tensile stress, in order to enable the ultra-high performance concrete layer to meet the requirement of tensile strength, the ultra-high performance concrete layer is usually manufactured by adopting expensive raw materials, and meanwhile, the ultra-high performance concrete layer needs to be subjected to complicated field steam curing treatment, so that the bridge deck slab is expensive in manufacturing cost and limited in application.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides an adopt hollow ultra high performance concrete slab's combination bridge floor plate structure, its innovation lies in: the combined bridge deck structure consists of a steel bridge deck plate and a hollow ultrahigh-performance concrete slab; a plurality of studs are welded on the upper end face of the steel bridge deck and distributed in an array form; the hollow ultrahigh-performance concrete slab is arranged on the upper end face of the steel bridge deck slab, and the concrete body of the hollow ultrahigh-performance concrete slab wraps the stud; a plurality of hollow tubular structural bodies are arranged in the hollow ultrahigh-performance concrete slab, the axial direction of each hollow tubular structural body is parallel to the upper end face of the steel bridge deck slab, the hollow tubular structural bodies are arranged in the gaps of the stud arrays, and the hollow tubular structural bodies are arranged in parallel at equal intervals; a reinforcing mesh is arranged in a concrete body of the hollow ultrahigh-performance concrete slab, the reinforcing mesh is parallel to the upper end face of the steel bridge deck, and the reinforcing mesh is positioned on the upper side of the hollow tubular structural body; the hollow tubular structure body is a steel pipe, an FRP pipe or a PVC pipe.
The principle of the utility model is that: due to the arrangement of the hollow tubular structure body, the hollow ultrahigh-performance concrete slab forms a hollow structure, so that the bending resistance efficiency of the combined bridge deck slab can be greatly improved, the tensile stress borne by the hollow ultrahigh-performance concrete slab under the working load is reduced, and the strength requirement on the hollow ultrahigh-performance concrete slab can be further reduced; on the one hand, because hollow ultra high performance concrete slab is hollow structure, can reduce the material quantity, reduce material cost, on the other hand, because the reduction of intensity requirement, probably need not carry out steam curing and handle and just can make hollow ultra high performance concrete slab satisfy the requirement, both improved the efficiency of construction and reduced the maintenance cost.
Referring to fig. 1, the lower end surface of the steel bridge deck in the figure is a plane, and in particular, in order to improve the structural performance, the steel bridge deck can adopt orthotropic steel bridge decks with more excellent performance, so that the following preferred scheme is adopted: the steel bridge deck is an orthotropic steel bridge deck, and the axial direction of the hollow tubular structural body is perpendicular to the axial direction of ribs on the lower end face of the orthotropic steel bridge deck.
Preferably, the cross section of the rib is U-shaped, L-shaped or inverted T-shaped, and the specific structure is shown in figures 4, 5, 6 and 7.
In order to enhance the shear strength between the steel deck slab (or orthotropic steel deck slab) and the hollow ultra-high performance concrete slab, the following preferred schemes may also be adopted: an epoxy bonding layer is arranged between the steel bridge deck and the hollow ultrahigh-performance concrete slab, and quartz sand is uniformly dispersed on the epoxy bonding layer. In specific implementation, a person skilled in the art can judge whether an epoxy bonding layer needs to be added according to actual conditions.
Based on the foregoing scheme, the utility model also discloses a construction method of combination bridge deck structure, the constitution of combination bridge deck structure as before, construction method includes:
1) for a newly-built bridge, after a steel bridge deck is laid, the step 2) is carried out; for the in-service bridge, cleaning the structural body above the steel bridge deck, and then entering the step 2);
2) welding studs on the steel bridge deck;
3) arranging a hollow tubular structural body above the steel bridge deck; when the hollow tubular structure body adopts a steel pipe, the steel pipe is subjected to rust removal treatment; in specific implementation, an epoxy bonding layer can be smeared on the surface of the steel pipe, and quartz sand is uniformly spread before the epoxy bonding layer is solidified;
4) arranging a reinforcing mesh above the hollow tubular structure;
5) the studs, the hollow tubular structure and the reinforcing mesh are cast together with ultra-high performance concrete.
If an epoxy adhesive layer needs to be additionally arranged between the steel bridge deck slab and the hollow ultrahigh-performance concrete slab, the construction method can be further optimized as follows: and 2) after the step 2), coating an epoxy bonding layer on the orthotropic steel bridge deck, uniformly spreading quartz sand on the epoxy bonding layer before the epoxy bonding layer is solidified, and then performing the operation of the step 3).
The utility model has the beneficial technical effects that: the scheme can effectively improve the bending resistance efficiency of the composite bridge deck slab, reduce the tensile stress borne by the ultra-high performance concrete slab and finally reduce the manufacturing cost of the composite bridge deck slab.
Drawings
FIG. 1 is a schematic view of a longitudinal section of a composite deck slab structure;
FIG. 2 is a schematic cross-sectional view taken at the position A-A in FIG. 1;
FIG. 3 is a schematic cross-sectional view taken at the position B-B in FIG. 1;
FIG. 4 is a schematic structural diagram of a longitudinal section of an orthotropic steel bridge deck with U-shaped ribs;
FIG. 5 is a schematic cross-sectional view of an orthotropic steel deck at the A-A position when U-shaped ribs are used;
FIG. 6 is a schematic cross-sectional view of an orthotropic steel deck plate employing L-shaped ribs (the cross-sectional position is similar to the A-A position in FIG. 5);
FIG. 7 is a schematic cross-sectional view of an orthotropic steel deck plate using inverted T-shaped ribs (the cross-sectional position is similar to the position A-A in FIG. 5);
the names corresponding to each mark in the figure are respectively: the concrete slab comprises a steel bridge deck 1, studs 1-1, ribs 1-2, a hollow ultrahigh-performance concrete slab 2, a hollow tubular structural body 2-1 and a reinforcing mesh 2-2.
Detailed Description
The utility model provides an adopt hollow ultra high performance concrete slab's combination bridge deck structure which innovation lies in: the combined bridge deck structure consists of a steel bridge deck plate 1 and a hollow ultrahigh-performance concrete slab 2; a plurality of studs 1-1 are welded on the upper end face of the steel bridge deck 1, and the studs 1-1 are distributed in an array form; the hollow ultrahigh-performance concrete slab 2 is arranged on the upper end face of the steel bridge deck slab 1, and the concrete body of the hollow ultrahigh-performance concrete slab 2 wraps the stud 1-1; a plurality of hollow tubular structural bodies are arranged in the hollow ultrahigh-performance concrete slab 2, the axial direction of each hollow tubular structural body is parallel to the upper end face of the steel bridge deck slab 1, the hollow tubular structural bodies are arranged in gaps of the array of the studs 1-1, and the hollow tubular structural bodies are arranged in parallel at equal intervals; a reinforcing mesh is arranged in the concrete body of the hollow ultrahigh-performance concrete slab 2, the reinforcing mesh is parallel to the upper end face of the steel bridge deck 1, and the reinforcing mesh is positioned on the upper side of the hollow tubular structural body; the hollow tubular structure body is a steel pipe, an FRP pipe or a PVC pipe.
Further, the steel bridge deck 1 is an orthotropic steel bridge deck, and the axial direction of the hollow tubular structural body is perpendicular to the axial direction of ribs on the lower end face of the orthotropic steel bridge deck.
Further, the cross-section of the rib is U-shaped, L-shaped or inverted T-shaped.
Furthermore, an epoxy bonding layer is arranged between the steel bridge deck plate 1 and the hollow ultrahigh-performance concrete plate 2, and quartz sand is uniformly dispersed on the epoxy bonding layer.
A construction method of a combined bridge deck structure is disclosed, wherein the combined bridge deck structure consists of a steel bridge deck 1 and a hollow ultrahigh-performance concrete slab 2; a plurality of studs 1-1 are welded on the upper end face of the steel bridge deck 1, and the studs 1-1 are distributed in an array form; the hollow ultrahigh-performance concrete slab 2 is arranged on the upper end face of the steel bridge deck slab 1, and the concrete body of the hollow ultrahigh-performance concrete slab 2 wraps the stud 1-1; a plurality of hollow tubular structural bodies are arranged in the hollow ultrahigh-performance concrete slab 2, the axial direction of each hollow tubular structural body is parallel to the upper end face of the steel bridge deck slab 1, the hollow tubular structural bodies are arranged in gaps of the array of the studs 1-1, and the hollow tubular structural bodies are arranged in parallel at equal intervals; a reinforcing mesh is arranged in the concrete body of the hollow ultrahigh-performance concrete slab 2, the reinforcing mesh is parallel to the upper end face of the steel bridge deck 1, and the reinforcing mesh is positioned on the upper side of the hollow tubular structural body; the hollow tubular structure body adopts a steel pipe, an FRP pipe or a PVC pipe; the innovation lies in that: the construction method comprises the following steps:
1) for a newly-built bridge, after the steel bridge deck slab 1 is laid, the step 2) is carried out; for an in-service bridge, cleaning a structural body above the steel bridge deck plate 1, and then entering the step 2);
2) welding studs 1-1 on the steel bridge deck slab 1;
3) arranging a hollow tubular structural body above the steel bridge deck plate 1; when the hollow tubular structure body adopts a steel pipe, the steel pipe is subjected to rust removal treatment; when the method is specifically implemented, the axial direction of the hollow tubular structural body is parallel to the transverse direction of the bridge;
4) arranging a reinforcing mesh above the hollow tubular structure;
5) the peg 1-1, the hollow tubular structure and the reinforcing mesh are poured together by using ultra-high performance concrete.
Further, after the step 2), an epoxy bonding layer is coated on the steel bridge deck 1, quartz sand is uniformly spread on the epoxy bonding layer before the epoxy bonding layer is solidified, and then the operation of the step 3) is carried out.
Claims (4)
1. The utility model provides an adopt hollow ultra high performance concrete slab's combination bridge floor structure which characterized in that: the combined bridge deck structure consists of a steel bridge deck plate (1) and a hollow ultrahigh-performance concrete slab (2); a plurality of studs (1-1) are welded on the upper end face of the steel bridge deck (1), and the studs (1-1) are distributed in an array form; the hollow ultrahigh-performance concrete slab (2) is arranged on the upper end face of the steel bridge deck slab (1), and the concrete body of the hollow ultrahigh-performance concrete slab (2) wraps the stud (1-1); a plurality of hollow tubular structural bodies are arranged in the hollow ultrahigh-performance concrete slab (2), the axial direction of each hollow tubular structural body is parallel to the upper end face of the steel bridge deck slab (1), the hollow tubular structural bodies are arranged in gaps of the stud (1-1) array, and the hollow tubular structural bodies are arranged in parallel at equal intervals; a reinforcing mesh is arranged in the concrete body of the hollow ultrahigh-performance concrete slab (2), the reinforcing mesh is parallel to the upper end face of the steel bridge deck (1), and the reinforcing mesh is positioned on the upper side of the hollow tubular structural body; the hollow tubular structure body is a steel pipe, an FRP pipe or a PVC pipe.
2. A composite deck structure employing hollow ultra high performance concrete panels as claimed in claim 1 wherein: the steel bridge deck (1) is an orthotropic steel bridge deck, and the axial direction of the hollow tubular structural body is perpendicular to the axial direction of ribs on the lower end face of the orthotropic steel bridge deck.
3. The composite bridge deck structure using the hollow ultra-high performance concrete slab as claimed in claim 2, wherein the cross-section of the rib is U-shaped, L-shaped or inverted T-shaped.
4. A composite deck structure using hollow ultra high performance concrete panels as claimed in claim 1, 2 or 3 wherein: an epoxy bonding layer is arranged between the steel bridge deck (1) and the hollow ultrahigh-performance concrete slab (2), and quartz sand is uniformly dispersed on the epoxy bonding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919677.XU CN211142811U (en) | 2019-11-08 | 2019-11-08 | Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919677.XU CN211142811U (en) | 2019-11-08 | 2019-11-08 | Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab |
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| Publication Number | Publication Date |
|---|---|
| CN211142811U true CN211142811U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921919677.XU Expired - Fee Related CN211142811U (en) | 2019-11-08 | 2019-11-08 | Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211142811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644362A (en) * | 2019-11-08 | 2020-01-03 | 邹杨 | Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab and construction method |
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2019
- 2019-11-08 CN CN201921919677.XU patent/CN211142811U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644362A (en) * | 2019-11-08 | 2020-01-03 | 邹杨 | Combined bridge deck structure adopting hollow ultrahigh-performance concrete slab and construction method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |