CN215482231U - Assembled waffle bridge panel combination case roof beam structure - Google Patents
Assembled waffle bridge panel combination case roof beam structure Download PDFInfo
- Publication number
- CN215482231U CN215482231U CN202120498314.4U CN202120498314U CN215482231U CN 215482231 U CN215482231 U CN 215482231U CN 202120498314 U CN202120498314 U CN 202120498314U CN 215482231 U CN215482231 U CN 215482231U
- Authority
- CN
- China
- Prior art keywords
- box girder
- steel
- waffle
- uhpc
- steel box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 235000012773 waffles Nutrition 0.000 title claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 103
- 239000010959 steel Substances 0.000 claims abstract description 103
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 8
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 9
- 239000011513 prestressed concrete Substances 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an assembled waffle bridge deck combined box girder structure which comprises a steel box girder, a UHPC waffle bridge deck and shear nail groups, wherein the shear nail groups are welded on the upper surface of a top plate of the steel box girder, the prefabricated UHPC waffle bridge deck is connected with the steel box girder through the shear nail groups, a transverse joint and a longitudinal joint are reserved between two adjacent UHPC waffle bridge decks at the top of the steel box girder, and UHPC concrete is poured at the transverse joint and the longitudinal joint. Compared with the traditional prestressed concrete box girder, the UHPC high-strength concrete box girder fully utilizes the good compression resistance and tensile resistance of the UHPC high-strength concrete, reduces the height and dead weight of the girder, can be prefabricated and assembled, has short construction period and high bridge economy, and overcomes some technical defects of the traditional prestressed concrete box girder bridge.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to an assembled waffle slab combined box girder structure.
Background
At present, the prestressed concrete box girder is deeply favored by designers due to the reasons of mature construction process, low manufacturing cost and the like. However, the prestressed concrete box girder has the problems of heavy weight, long construction time, large girder height, easy cracking of concrete and the like, and thus the popularization and the use of the prestressed concrete box girder in partial areas are hindered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an assembled waffle slab combined box girder structure, which solves the problems in the prior art, reduces the height and the dead weight of a girder, can be prefabricated and assembled, and has short construction period, high bridge economy and low later operation and maintenance cost.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an assembled waffle bridge deck combined box girder structure which comprises a steel box girder, UHPC waffle bridge decks and shear nail groups, wherein the shear nail groups are welded on the upper surface of a top plate of the steel box girder, the prefabricated UHPC waffle bridge decks are connected with the steel box girder through the shear nail groups, a transverse joint and a longitudinal joint are reserved between two adjacent UHPC waffle bridge decks at the top of the steel box girder, and UHPC concrete is poured at the transverse joint and the longitudinal joint.
Preferably, the steel box girder is a U-shaped steel box girder.
Preferably, the wall thickness of the steel box girder is 10-20 mm; arranging a plurality of longitudinal stiffening rib steel plates with the thickness of 10-12mm and the height of 50-70mm on the bottom plate of the steel box girder, wherein the longitudinal stiffening rib steel plates are symmetrically arranged along the vertical symmetrical axis of the steel box girder; arranging a plurality of vertical stiffening rib steel plates with the thickness of 10-12mm and the width of 50-150mm on the inner side of a web plate of the steel box girder, wherein the distance between two adjacent vertical stiffening rib steel plates is 600 mm; and the cantilever steel plate and the support steel plate are arranged on the outer side of the edge beam of the steel box beam, and the thicknesses of the cantilever steel plate and the support steel plate are 10-12 mm.
Preferably, the steel box girder further comprises end cross beams, the end cross beams are arranged at two ends of the steel box girder, a closed space is enclosed by the end cross beams and the steel box girder, and C55 fine stone micro-expansion concrete is poured into the closed space.
Preferably, the UHPC waffle bridge deck comprises bridge deck plates, transverse ribs and longitudinal ribs, reinforcing steel meshes are arranged in the bridge deck plates, reinforcing steel bars are reserved at transverse joints and longitudinal joints between two adjacent UHPC waffle bridge deck plates, and the reinforcing steel bars in the same straight line are mutually overlapped.
Preferably, the bridge deck of the UHPC waffle bridge deck is made of ultra-high-strength concrete and is in a waffle slab structure; the plate thickness of the bridge deck is 12-14cm, the rib height is 22-30cm, the bottom width of the longitudinal rib is 10-15cm, and the top width is 12-17 cm.
A construction method of an assembled waffle bridge panel combined box girder structure is applied to the assembled waffle bridge panel combined box girder structure and comprises the following steps:
(1) prefabricating UHPC waffle bridge panels in an industrial manner, wherein a reinforcing mesh is arranged in the panel of the UHPC waffle bridge panel, and connecting reinforcing steel bars and connecting tongues and grooves are reserved at the connecting positions of two adjacent UHPC waffle bridge panels;
(2) installing a U-shaped steel box beam and an end cross beam, welding a shear nail group on a top steel plate of the steel box beam, pouring C55 fine stone micro-expansion concrete into the end cross beam, then closing the end cross beam, and welding the shear nail group at the end cross beam;
(3) hoisting a prefabricated UHPC waffle bridge deck, aligning a reserved longitudinal joint of the UHPC waffle bridge deck with a welding shear nail group of a steel box girder web top steel plate, and connecting reserved steel bars of the UHPC waffle bridge deck with the welding shear nail group of the steel box girder web top steel plate at equal intervals in an alternating mode;
(4) ultra-high-strength concrete is cast in situ in longitudinal and transverse joints of the UHPC waffle bridge deck assembly;
(5) and (3) installing a bridge expansion joint, arranging a bridge floor waterproof layer, and putting the bridge expansion joint into use after the asphalt concrete oil surface is paved.
Compared with the prior art, the utility model has the following beneficial technical effects:
compared with the traditional prestressed concrete box girder, the steel-concrete combined box girder structure of the assembled UHPC waffle bridge deck fully utilizes the good compression resistance and tensile resistance of the UHPC high-strength concrete, reduces the height and the dead weight of the girder, can be prefabricated and assembled, has short construction period and high bridge economy, and overcomes some technical defects of the traditional prestressed concrete box girder bridge.
Furthermore, the steel and UHPC ultrahigh-strength concrete are adopted in the fabricated UHPC waffle bridge deck steel-concrete combined box girder structure, so that the maintenance cost in the later operation process is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a cross-sectional view of a steel-concrete composite box girder structure of an assembled UHPC waffle bridge deck along a bridge direction, provided by the utility model;
FIG. 2 is a cross-sectional view of the assembled UHPC waffle slab steel-concrete combined box girder structure provided by the utility model along the transverse bridge direction;
FIG. 3 is a plan view cross-sectional view of a fabricated UHPC waffle deck steel-concrete composite box girder structure provided by the present invention;
FIG. 4 is a three-dimensional view of a U-shaped steel box girder of an assembled UHPC waffle bridge deck steel-concrete combined box girder structure provided by the utility model;
FIG. 5 is a three-dimensional view of an assembled UHPC waffle deck with a steel-concrete composite box girder structure according to the utility model;
in the figure: 1-U-shaped steel box girder; 2-longitudinal stiffening rib steel plate; 3-vertical stiffening rib steel plate; 4-assembled UHPC waffle bridge panel; 5-longitudinal seam; 6-a shear pin group; 7-C55 fine stone micro-expansion concrete; 8-reinforcing mesh; 9-supporting a steel plate; 10-bridge support; 11-transverse seams; 12-an expansion joint; 13-paving the bridge deck; 14-cantilever steel plate; 15-end beam steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide an assembled waffle slab combined box girder structure, which solves the problems in the prior art, reduces the height and the dead weight of a girder, can be prefabricated and assembled, and has short construction period, high bridge economy and low later operation and maintenance cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-5, the present embodiment provides a fabricated UHPC waffle slab steel-concrete combined box girder structure, which comprises a U-shaped steel box girder 1; longitudinal stiffener steel plates 2; a vertical stiffener steel plate 3; an assembled UHPC waffle bridge deck 4; a longitudinal seam 5; a shear pin group 6; c55 fine stone micro-expansion concrete 7 filled in the end beam 15; a reinforcing mesh 8; a support steel plate 9; a bridge support 10; a transverse seam 11; an expansion joint 12; bridge deck pavement 13; a cantilever steel plate 14; end cross member steel plates 15.
During construction, the assembled UHPC waffle bridge deck 4 is prefabricated firstly. And (3) customizing and installing a waffle bridge deck formwork, paving a reinforcing mesh 8 with the diameter of 10-12mm, and then pouring UHPC (ultra high strength concrete), wherein the UHPC ultra high strength concrete in the formwork is vibrated to be compact and uniform. And after the UHPC ultrahigh-strength concrete reaches a certain strength, removing the mould and maintaining until the design strength is reached.
In the embodiment, the steel box beam comprises a U-shaped steel box beam 1, wherein a bridge support 10 is arranged at the bottom of the U-shaped steel box beam 1, a longitudinal stiffening rib steel plate 2 is welded on the upper surface of a bottom plate of the U-shaped steel box beam along a vertical symmetrical line of the steel box beam, a vertical stiffening rib steel plate 3 is welded on a web plate of the U-shaped steel box beam, and a shear nail group 6 is welded on a top steel plate of the web plate of the U-shaped steel box beam; the welding edge beam cantilever support steel plate 9 and the cantilever steel plate 14. Specifically, the wall thickness of the U-shaped steel box girder 1 is 10-20 mm; arranging a plurality of longitudinal stiffening rib steel plates 2 with the thickness of 10-12mm and the height of 50-70mm on a bottom plate of the U-shaped steel box girder 1, wherein the longitudinal stiffening rib steel plates 2 are symmetrically arranged along a vertical symmetrical axis of the U-shaped steel box girder 1; arranging a plurality of vertical stiffening rib steel plates 3 with the thickness of 10-12mm and the width of 50-150mm on the inner side of a web plate of the U-shaped steel box beam 1, wherein the distance between two adjacent vertical stiffening rib steel plates 3 is 600 mm; the cantilever steel plate 14 and the support steel plate 9 are arranged on the outer side of the side beam of the U-shaped steel box beam 1, and the thicknesses of the cantilever steel plate 14 and the support steel plate 9 are 10-12 mm.
Furthermore, end cross beams 15 are arranged at two ends of the U-shaped steel box girder 1, a closed space is formed by the peripheries of the end cross beams 15 and the steel box girder, C55 fine gravel micro-expansion concrete 7 is poured into the closed end cross beams 15 after the end cross beams 15 are poured into the closed space, and the shear nail groups 6 are welded at the positions of the end cross beams 15.
Hoisting a prefabricated assembled UHPC waffle bridge deck 1, reserving a longitudinal joint 5 on the assembled UHPC waffle bridge deck 1, aligning the joint with a steel box girder web top steel plate welding shear nail group 6, and requiring that reserved steel bars on the assembled UHPC waffle bridge deck 1 and the steel box girder web top steel plate welding shear nail group 6 are alternately arranged at equal intervals to be connected with the reserved steel bars on the assembled UHPC waffle bridge deck 1.
Furthermore, the prefabricated UHPC waffle slab further comprises a longitudinal joint 11 and a transverse joint 5, and UHPC ultrahigh-strength concrete is cast in the longitudinal joint 11 and the transverse joint 5 which are assembled and reserved on the assembled UHPC waffle slab 1.
The bridge expansion joint 12 is installed, a bridge deck waterproof layer is arranged, and the bridge expansion joint can be put into use after the asphalt concrete oil surface 13 is paved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (6)
1. The utility model provides an assembled waffle decking combination case roof beam structure which characterized in that: the shear nail group is welded on the upper surface of a top plate of the steel box girder, the prefabricated UHPC waffle bridge deck is connected with the steel box girder through the shear nail group, a transverse joint and a longitudinal joint are reserved between two adjacent UHPC waffle bridge decks at the top of the steel box girder, and UHPC concrete is poured at the transverse joint and the longitudinal joint.
2. The assembled waffle slab combination box girder structure of claim 1, wherein: the steel box girder is a U-shaped steel box girder.
3. The assembled waffle slab combination box girder structure of claim 2, wherein: the wall thickness of the steel box girder is 10-20 mm; arranging a plurality of longitudinal stiffening rib steel plates with the thickness of 10-12mm and the height of 50-70mm on the bottom plate of the steel box girder, wherein the longitudinal stiffening rib steel plates are symmetrically arranged along the vertical symmetrical axis of the steel box girder; arranging a plurality of vertical stiffening rib steel plates with the thickness of 10-12mm and the width of 50-150mm on the inner side of a web plate of the steel box girder, wherein the distance between two adjacent vertical stiffening rib steel plates is 600 mm; and the cantilever steel plate and the support steel plate are arranged on the outer side of the edge beam of the steel box beam, and the thicknesses of the cantilever steel plate and the support steel plate are 10-12 mm.
4. The assembled waffle slab combination box girder structure of claim 1, wherein: the steel box girder comprises a steel box girder and is characterized by further comprising end cross beams, wherein the end cross beams are arranged at two ends of the steel box girder, a closed space is formed by the periphery of each end cross beam and the steel box girder, and C55 fine stone micro-expansion concrete is poured into the closed space.
5. The assembled waffle slab combination box girder structure of claim 1, wherein: the UHPC waffle bridge deck comprises bridge deck plates, transverse ribs and longitudinal ribs, reinforcing steel bar nets are arranged in the bridge deck plates, reinforcing steel bars are reserved at transverse joints and longitudinal joints between two adjacent UHPC waffle bridge deck plates, and the reinforcing steel bars in the same straight line are mutually overlapped.
6. The assembled waffle slab combination box girder structure of claim 5, wherein: the bridge deck of the UHPC waffle bridge deck is made of ultra-high-strength concrete and is in a waffle slab structure; the plate thickness of the bridge deck is 12-14cm, the rib height is 22-30cm, the bottom width of the longitudinal rib is 10-15cm, and the top width is 12-17 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120498314.4U CN215482231U (en) | 2021-03-09 | 2021-03-09 | Assembled waffle bridge panel combination case roof beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120498314.4U CN215482231U (en) | 2021-03-09 | 2021-03-09 | Assembled waffle bridge panel combination case roof beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215482231U true CN215482231U (en) | 2022-01-11 |
Family
ID=79771923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120498314.4U Expired - Fee Related CN215482231U (en) | 2021-03-09 | 2021-03-09 | Assembled waffle bridge panel combination case roof beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215482231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853916A (en) * | 2021-03-09 | 2021-05-28 | 甘肃畅陇公路养护技术研究院有限公司 | Assembled waffle bridge panel combined box girder structure and construction method thereof |
-
2021
- 2021-03-09 CN CN202120498314.4U patent/CN215482231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853916A (en) * | 2021-03-09 | 2021-05-28 | 甘肃畅陇公路养护技术研究院有限公司 | Assembled waffle bridge panel combined box girder structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104929034B (en) | A modular steel-concrete rapid construction small box girder bridge and its construction method | |
| CN106677049A (en) | Assembled steel-concrete combination structure bridge and construction method | |
| CN107245934A (en) | A kind of assembled steel profiled sheet concrete combined board small box girder | |
| CN204185755U (en) | A kind of Wavelike steel webplate post-stressed concrete T beam | |
| CN110424242A (en) | Assembled Wavelike steel webplate steel reinforced concrete composite beam bridge and construction method | |
| CN207633207U (en) | A kind of ultra-high performance concrete seam construction for assembly hollow slab bridges beam | |
| CN211848855U (en) | A Novel Quick Modular Bridge Deck Joint Structure | |
| CN207973983U (en) | It can rapidly-assembled precast bridge | |
| CN109930484A (en) | A kind of very-high performance deck structrue and its construction method | |
| CN108316120A (en) | It can rapidly-assembled precast bridge and its construction method | |
| CN103938549A (en) | Construction method for fabricated type corrugated steel inclined web combined beam | |
| CN212153072U (en) | UHPC corrugated steel web I-shaped combined continuous beam | |
| CN211522899U (en) | Long-span steel-concrete composite beam convenient to erect by bridge girder erection machine | |
| CN108316164A (en) | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction and construction method using new beam | |
| CN215482231U (en) | Assembled waffle bridge panel combination case roof beam structure | |
| CN105735099B (en) | Construction time uses the simple supported-to-continuous girder bridge and its construction method of external prestressing | |
| CN107905084B (en) | RPC steel truss combined bridge deck and continuous beam bridge | |
| CN103205930A (en) | Structure for continuous transformation of existing simply supported hollow slab girder bridge and construction method of structure | |
| CN112853916A (en) | Assembled waffle bridge panel combined box girder structure and construction method thereof | |
| CN210946494U (en) | From taking stiffening template ultra-high performance concrete composite bridge | |
| CN103669193A (en) | Laterally spliced combination T beam with wavy steel webs and construction method thereof | |
| CN217869978U (en) | Steel-concrete combined bridge deck and wet seam structure thereof | |
| CN216338993U (en) | Longitudinal joint for steel-UHPC (ultra high performance concrete) assembled pi-shaped combination beam | |
| CN212388355U (en) | Bridge deck structure of steel truss bridge | |
| CN106049256B (en) | A kind of profiled sheet-Wavelike steel webplate-truss combination beamss and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |