CN108457182B - Orthotropic bridge deck and construction process thereof - Google Patents
Orthotropic bridge deck and construction process thereof Download PDFInfo
- Publication number
- CN108457182B CN108457182B CN201810480375.0A CN201810480375A CN108457182B CN 108457182 B CN108457182 B CN 108457182B CN 201810480375 A CN201810480375 A CN 201810480375A CN 108457182 B CN108457182 B CN 108457182B
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- corrugated
- panel
- bridge deck
- plate
- longitudinal beam
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008569 process Effects 0.000 title claims abstract description 10
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 239000010426 asphalt Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 238000003466 welding Methods 0.000 claims description 17
- 241001233242 Lontra Species 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011120 plywood Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 31
- 238000005452 bending Methods 0.000 description 11
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 230000032798 delamination Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to an orthotropic bridge deck and a construction process thereof, and relates to the technical field of bridge structures, wherein the structure comprises a corrugated screen plate, an upper corrugated panel and a corrugated longitudinal beam plate which are sequentially laminated from top to bottom, the corrugated direction of the corrugated screen plate and the corrugated direction of the upper corrugated panel are mutually perpendicular, the corrugated direction of the corrugated screen plate and the corrugated direction of the corrugated longitudinal beam plate are mutually parallel, the upper surface of the upper corrugated panel is covered with a concrete layer and/or an asphalt layer, the concrete layer and/or the asphalt layer fills the concave surface of the upper corrugated panel and is 10-70mm higher than the upper surface of the upper corrugated panel, and the corrugated screen plate is completely covered.
Description
Technical Field
The invention relates to the technical field of bridge structures, in particular to an orthotropic bridge deck plate and a construction process thereof.
Background
The traditional structure is mostly a pure reinforced concrete structure or a flat plate type reinforced concrete combined structure, the durability of the bridge deck system is directly related to the service life of the bridge, the bridge deck system of the pure reinforced concrete structure is thick and heavy, the force transmission performance of the bridge deck is poor, and the concrete fragments fall to form potential safety hazards for descending vehicles and people.
At present, the highway large-span suspension bridge and the cable-stayed bridge basically adopt orthotropic plate structures, namely, stiffening is realized by longitudinal U-shaped ribs, transverse ribs and transverse diaphragms under the steel bridge deck plates so as to improve the rigidity. The orthotropic steel bridge deck has the advantages of light weight, convenient transportation and erection, short construction period, large bearing capacity and the like, and has wide application in large-span bridges and urban bridges. However, the pure steel bridge deck has complex structure, a large number of welding seams and high welding difficulty, and has very high requirements on factory manufacture, field assembly precision and welding quality. The orthotropic steel bridge deck plate has larger local deformation under the action of concentrated load, the bridge deck plate is supported by the web plate of the U-shaped rib, the bridge deck plate is actually a multi-support beam, and fatigue cracks are easy to generate when the repeated rolling of wheels is carried out on the welding seam constraint part of the web plate and the bridge deck plate.
Secondly, the bonding problem of the steel bridge deck and the paving layer is solved. The bridge deck plate combined by the common steel plate and the concrete has the advantages that the surface of the steel plate is smooth, the bending rigidity of the steel plate is small, and the bonding and the overall working performance combined by the steel plate and the concrete are poor. Under the action of horizontal force, such as sudden braking, a relatively large shearing force is generated between the steel bridge deck and the asphalt concrete pavement, so that the delamination problem of the steel bridge deck and the pavement is generated.
The above problems of the bridge deck need to develop a bridge deck structural system with good stress performance and bending resistance, good combination capability and good manufacturing process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the steel box girder orthotropic steel bridge deck slab which can greatly reduce welding workload, improve transverse bending rigidity of the bridge deck slab, reduce the possibility of longitudinal cracking of the bridge deck slab, improve the shearing resistance of a connecting interface of a paving layer and the bridge deck slab, and fundamentally solve the problem of welding fatigue cracks and a construction process thereof.
The aim of the invention is achieved by the following technical scheme:
The utility model provides an orthotropic bridge deck, this bridge deck include from last ripple otter board, last ripple panel, ripple longeron board that stacks gradually down, its characterized in that: the ripple direction of ripple otter board and the ripple direction mutually perpendicular of last ripple panel, the ripple direction of ripple otter board and the ripple direction of ripple longeron board are parallel to each other, go up and adopt fixed subassembly to connect between ripple longeron board, go up ripple panel and ripple otter board and fix together, the upper surface of going up the ripple panel is covered with concrete layer and/or pitch layer, concrete layer and/or pitch layer are filled go up the concave surface of ripple panel to be higher than the upper surface 10-70mm of going up the ripple panel, and cover the ripple otter board completely, the longitudinal section of crest and trough of ripple longeron board is trapezoidal.
Wherein the wave height of the corrugated screen plate is 10-70 mm.
Wherein the thickness of the upper corrugated panel is 5-10mm, and the wave height is 20-150 mm.
Wherein the thickness of the upper corrugated panel is 6-8mm, and the wave height is 40-80mm.
Wherein, the upper surface of upper ripple panel covers concrete layer or pitch layer.
The upper surface of the upper corrugated panel can also adopt a structure that a layer of asphalt layer is covered on the upper surface of the concrete layer. At this time, when the concrete layer is completed, the upper surface of the concrete layer is 10-50mm higher than the convex surface of the upper corrugated panel, and the bottom of the corrugated screen plate is fixed in the concrete layer, but the upper surface of the corrugated screen plate is 10-30mm higher than the upper surface of the concrete layer, and the asphalt layer completely covers the corrugated screen plate.
Wherein, can set up one deck buffer layer between upper corrugated panel and the ripple longeron board.
Wherein the buffer layer is a rubber plate or an asphalt layer.
The fixing assembly comprises bolts, and the upper corrugated panel is connected with the corrugated longitudinal beam plate through the bolts.
The screw cap of the bolt is provided with a hook or a lifting lug, the hook or the lifting lug (71) is arranged on the screw cap of the screw, and the corrugated screen plate is bound to the hook or the lifting lug through a steel wire.
The construction process of the orthotropic bridge deck comprises the following steps of:
Step A, manufacturing and assembling a corrugated longitudinal beam plate in a factory;
B, welding the assembled corrugated longitudinal beam plates, transverse ribs, main beams, web plates and the like to form a segmented steel box girder structure, and welding bolts at corresponding positions of the upper top surfaces of the assembled corrugated longitudinal beam plates;
C, transporting each segmented steel box girder to a construction site, and then carrying out segmented hoisting and splicing to form a complete upper structure of the steel box girder bridge;
step D, paving a buffer layer such as asphalt or a rubber plate on the convex top surface of the corrugated longitudinal beam plate;
e, fixing the corrugated panel to the bolt on site;
Step F, paving a waterproof layer;
Step G, fixing the corrugated screen plate and the hooks or the lifting lugs by using steel wires, and pouring concrete or asphalt, or pouring concrete and then paving asphalt;
in the step G, when concrete is poured, the concrete is firstly vibrated and compacted, and the upper surface of the concrete is 10-30mm lower than the top of the convex surface of the corrugated screen plate.
The invention has the beneficial effects that:
The orthotropic bridge deck sequentially comprises the corrugated mesh plate, the upper corrugated panel and the corrugated longitudinal beam plate from top to bottom, wherein the corrugated directions of the two adjacent plates among the corrugated mesh plate, the upper corrugated panel and the corrugated longitudinal beam plate are mutually perpendicular, so that the welding workload can be greatly reduced, the transverse bending stiffness of the bridge deck is improved, the possibility of longitudinal cracking of the bridge deck is reduced, the shearing resistance of a connecting interface of a paving layer and the bridge deck is improved, and the problem of welding fatigue cracks is fundamentally solved.
The invention utilizes the combination of the corrugated panel and the corrugated screen plate, which not only can play a role in stabilizing concrete and/or asphalt, but also has higher bending resistance than common steel plates and steel bars due to the corrugated shape, and can further disperse the wheel load acting force of the wheels, thereby avoiding deformation and damage caused by concentrated load acting on the bridge deck steel plates.
According to the corrugated mesh plate, the upper corrugated panel and the corrugated longitudinal beam plate, the rigidity and the bending moment of the single-layer structure are greatly improved through the use of the corrugated structure.
The construction process of the orthotropic bridge deck is simple and easy to realize.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic view of an embodiment of the present invention with asphalt and concrete layers hidden.
Fig. 2 is a left side schematic view of fig. 1.
Fig. 3 is a partial I-direction enlarged view of fig. 1.
Fig. 4 is a schematic structural view of an embodiment of the present invention.
The reference numerals include:
corrugated mesh panel 1, upper corrugated panel 2, corrugated longitudinal beam panel 3, concrete layer 4, asphalt layer 5, buffer layer 6, fixing component 7, hanger or lifting lug 71.
Detailed Description
The invention will be further described with reference to the following examples.
The orthotropic bridge deck of this embodiment, as shown in fig. 1 to 4, is mainly formed by mutually perpendicular installation of three layers of corrugated steel structures of a corrugated mesh plate 1, an upper corrugated panel 2 and a corrugated longitudinal beam plate 3, and the corrugated mesh plate 1, the upper corrugated panel 2 and the corrugated longitudinal beam plate 3 are sequentially arranged from top to bottom, so that the purpose is to greatly improve the rigidity and bending moment of a single-layer structure through the use of the corrugated structure. For deck steel plates in the traditional sense, the thickness generally needs to be over 12mm, some even 40mm, in order to ensure the rigidity of the steel plate in the U-shaped ribs. The thickness of the upper corrugated panel 2 adopted in the embodiment is only 7mm, and the structure provides a structure adopting the upper corrugated panel as a bridge floor reinforced concrete composite structure member and a bridge floor concrete template, and meanwhile, the trough of the upper corrugated panel forms a plurality of rib beams, so that the upper corrugated panel has good rigidity and bending resistance.
The orthotropic bridge deck of this embodiment is: one side of the upper corrugated panel (i.e., the upper corrugated panel 2) is connected to the concrete, and the other side is connected to the corrugated girder 3 perpendicular to the corrugated direction thereof. The advantages are that: the bending resistance of the bridge panel can be improved through the rib beams of the upper corrugated panel 2, so that the transverse stress of the steel plate at the top of the stiffening rib tends to be uniform, and the local flexural deformation of the bridge deck steel plate is greatly reduced. Moreover, as the wave height of the upper corrugated panel 2 is not large, the wave height is 60mm, the amount of the contained concrete is greatly reduced, and the overall weight of the bridge deck is effectively reduced on the premise of ensuring the rigidity, the strength, the bending resistance and the bridge deck travelling comfort.
Wherein, the wave height of the corrugated screen plate is 30mm, and the wave height can be designed between 20 mm and 40mm according to the load of the bridge.
As a preferable scheme, in the orthotropic bridge deck slab, the upper corrugated panel 2 and the corrugated longitudinal beam plates 3 can be connected by butt welding, so that a large number of long and straight welding seams between the traditional bridge deck slab and the U-shaped longitudinal beam at the bottom are avoided, welding stress and deformation at bridge deck steel plates and stiffening ribs are eliminated, and the service life of the bridge deck slab is prolonged. In addition, the hoisting weight during installation and construction can be greatly reduced.
The fixing assembly 7 comprises a bolt, and a hook (or lifting lug) 71 is arranged on a nut of the bolt.
The upper corrugated panel 2 and the corrugated longitudinal beam plate 3 are connected through bolts, the hooks (or lifting lugs) 71 of the upper corrugated panel 2 can be used for binding the corrugated screen plate 1, the corrugated screen plate 1 is fixed to the upper corrugated panel 2 through steel wires, the steel wires can play a role in reinforcing steel bars in concrete, and the upper corrugated panel can also play a role in improving the shearing resistance of concrete and bridge decks and forming good binding force with subsequent bridge deck pavement layers such as asphalt, so that poor bridge deck system binding is well solved, and meanwhile, the workload of workers for binding reinforcing steel bars on bridge construction sites is greatly reduced due to the use of the corrugated screen plate 1.
As another scheme, a buffer layer 6 can be added between the upper corrugated panel 2 and the corrugated longitudinal beam plate 3, such as a rubber plate or an asphalt layer, which can achieve the purposes of shock absorption and noise reduction.
The upper corrugated panel 2 of the embodiment is used as a bridge floor reinforced concrete combined structural member and a bridge floor concrete template, and the bolts for fixing the upper corrugated panel 2 and the steel wires for fixing the corrugated screen plate 1 also just play a role in fixing the concrete and the upper corrugated panel 2, so that the shearing strength between the concrete and the upper corrugated panel 2 is improved, and the delamination problem of the upper corrugated panel 2 and a paving layer can be greatly reduced. Meanwhile, the trough of the upper corrugated panel 2 forms a plurality of rib beams, so that the corrugated plate has good bending resistance, and particularly, the corrugated screen plate 1 is arranged on the upper corrugated panel 2, so that the phenomenon of poor bridge deck combination is solved, the rigidity of the bridge deck is further improved, meanwhile, the thickness of the bridge panel can be greatly reduced, the cost is reduced, the overall weight of the bridge deck is reduced, and the corrugated plate has a very positive effect on popularization and application of steel bridges.
The construction process of the orthotropic bridge deck plate of the embodiment comprises the following steps:
step A, manufacturing and assembling a corrugated longitudinal beam plate 3 in a factory;
B, welding the assembled corrugated longitudinal beam plates 3, transverse ribs, main beams, web plates and the like to form a segmented steel box girder structure, and welding bolts at corresponding positions of the upper top surfaces of the assembled corrugated longitudinal beam plates 3;
C, transporting each segmented steel box girder to a construction site, and then carrying out segmented hoisting and splicing to form a complete upper structure of the steel box girder bridge;
Step D, paving a buffer layer such as asphalt or a rubber plate on the convex top surface of the corrugated longitudinal beam plate 3;
Step E, installing the corrugated panel 2 on site and fixing the corrugated panel by using a fixing assembly 7 (if the step is formed when the bridge panel and the longitudinal beam plate are connected by adopting bolts);
Step F, paving a waterproof layer;
step G, fixing the corrugated screen plate 1 and the hooks (or lifting lugs) 71 by using steel wires, and pouring concrete or asphalt;
Step H, for the bridge deck adopting the concrete and asphalt mixed structure, concrete is required to be poured firstly and then an asphalt layer is required to be paved;
in the step G, when concrete is poured, the concrete is vibrated to be compact, and the upper surface of the concrete is 10-30mm lower than the top of the convex surface of the corrugated screen plate 1, so that the convex surface of the corrugated screen plate 1 can form good binding force with the subsequent bridge deck pavement layers such as concrete or asphalt, and the problem of delamination of the bridge deck can be well solved.
The construction process of the orthotropic bridge deck plate is simple and easy to realize.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an orthotropic deck slab, this deck slab includes from last ripple otter board (1), last ripple panel (2), ripple longeron board (3) that stacks gradually down, its characterized in that: the corrugated direction of the corrugated screen plate (1) and the corrugated direction of the upper corrugated panel (2) are mutually perpendicular, the corrugated direction of the corrugated screen plate (1) and the corrugated direction of the corrugated longitudinal beam plate (3) are mutually parallel, the upper corrugated panel (2) and the corrugated longitudinal beam plate (3) are connected by adopting a fixing component (7), the upper corrugated panel (2) and the corrugated screen plate (1) are fixed together, the upper surface of the upper corrugated panel (2) is covered with a concrete layer (4) and/or an asphalt layer, and the concrete layer and/or the asphalt layer fills the concave surface of the upper corrugated panel (2) and is 10-70mm higher than the upper surface of the upper corrugated panel (2), and the corrugated screen plate (1) is completely covered;
the fixing assembly (7) comprises a bolt, a hook or a lifting lug (71), and the hook or the lifting lug (71) is arranged on a nut of the bolt;
the corrugated screen plate (1) is bound to a hook or a lifting lug (71) through steel wires.
2. The orthotropic bridge deck according to claim 1, wherein the wave height of the corrugated mesh plate (1) is 10-70mm.
3. The orthotropic bridge deck according to claim 1, wherein the upper corrugated deck (2) has a thickness of 5-10mm and a wave height of 20-150mm.
4. An orthotropic bridge deck according to claim 3, characterized in that the upper corrugated deck (2) has a thickness of 6-8mm and a wave height of 40-80mm.
5. The orthotropic bridge deck according to claim 1, wherein the upper surface of the upper corrugated deck (2) is covered with a concrete layer (4) or an asphalt layer.
6. The orthotropic bridge deck according to claim 1, wherein the upper surface of the upper corrugated deck (2) is covered with a concrete layer (4), and the upper surface of the concrete layer (4) is covered with an asphalt layer (5).
7. Orthotropic bridge deck according to claim 1, characterized in that a buffer layer (6) is arranged between the upper corrugated deck (2) and the corrugated girder plate (3).
8. The orthotropic bridge deck according to claim 7, wherein the buffer layer (6) is a plywood or asphalt layer.
9. A construction process of an orthotropic bridge deck according to any of claims 5 or 6, comprising the steps of:
step A, manufacturing and assembling a corrugated longitudinal beam plate (3) in a factory;
b, welding the assembled corrugated longitudinal beam plates (3), transverse ribs, main beams and web plates to form a segmented steel box girder structure, and welding bolts at corresponding positions of the upper top surfaces of the assembled corrugated longitudinal beam plates (3);
C, transporting each segmented steel box girder to a construction site, and then carrying out segmented hoisting and splicing to form a complete upper structure of the steel box girder bridge;
D, installing a corrugated panel (2) to the corrugated longitudinal beam plate (3) on site;
And E, pouring concrete and/or asphalt on the upper surface of the upper corrugated panel (2) to cover the corrugated screen plate (1).
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CN201810480375.0A CN108457182B (en) | 2018-05-18 | 2018-05-18 | Orthotropic bridge deck and construction process thereof |
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CN201810480375.0A CN108457182B (en) | 2018-05-18 | 2018-05-18 | Orthotropic bridge deck and construction process thereof |
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CN108457182A CN108457182A (en) | 2018-08-28 |
CN108457182B true CN108457182B (en) | 2024-04-30 |
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Families Citing this family (4)
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CN110424241B (en) * | 2019-03-04 | 2021-08-31 | 郝苏 | Rectangular corrugated plate base structure composite material for bearing surfaces of bridges and other large structures |
CN111663441A (en) * | 2019-03-06 | 2020-09-15 | 郝苏 | Wave-mode plate base structure composite material for bearing surface of bridge and other large-scale structures |
CN112746554A (en) * | 2021-02-08 | 2021-05-04 | 清华大学 | Combined capping beam and bridge with same |
CN113215982B (en) * | 2021-05-11 | 2023-04-14 | 中交第三公路工程局有限公司 | Panel structure of UHPC (ultra high performance polycarbonate) combined bridge |
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