CN220414002U - U-shaped stiffening rib orthotropic steel bridge deck connected by battens - Google Patents
U-shaped stiffening rib orthotropic steel bridge deck connected by battens Download PDFInfo
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- CN220414002U CN220414002U CN202321858244.4U CN202321858244U CN220414002U CN 220414002 U CN220414002 U CN 220414002U CN 202321858244 U CN202321858244 U CN 202321858244U CN 220414002 U CN220414002 U CN 220414002U
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- bridge deck
- stiffening rib
- steel bridge
- web
- batten
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000003466 welding Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 19
- 239000003351 stiffener Substances 0.000 claims description 12
- 239000010426 asphalt Substances 0.000 claims description 11
- 210000003371 toe Anatomy 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 13
- 238000009826 distribution Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 26
- 238000005336 cracking Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000001255 hallux Anatomy 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003601 intercostal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of bridge construction, and particularly relates to an orthotropic steel bridge deck with U-shaped stiffening ribs connected by battens. The utility model provides a U type stiffening rib orthotropic steel bridge deck board that batten strip is connected, includes a plurality of parallel arrangement's U type stiffening rib, parallel arrangement's U type stiffening rib upper portion is equipped with steel bridge deck roof, steel bridge deck roof upper portion is equipped with bridge deck pavement layer, be connected with a plurality of battens between the parallel arrangement's the U type stiffening rib, U type stiffening rib includes two parallel arrangement's web and connects the bottom plate of web bottom, the web with steel bridge deck roof lower surface fixed connection. The transverse connection of the stiffening ribs can be effectively enhanced by arranging the transverse battens on the U-shaped stiffening rib bottom plate, the transverse stiffening ribs are replaced by the battens with smaller intervals, the transverse rigidity and the uniformity of rigidity distribution are improved, and the number of welding seams between the transverse ribs and the top plate and the U-shaped rib web plates is reduced.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to an orthotropic steel bridge deck with U-shaped stiffening ribs connected by battens.
Background
In large-span bridges, orthotropic steel deck boards are gradually and widely applied due to the characteristics of light weight of components, convenience in transportation and erection, short construction period and the like. The bridge deck system consisting of the orthotropic steel deck plates and the asphalt concrete with the diameter of 35-80 mm which are commonly adopted in the prior large-span and middle-span steel bridges has the defects that bridge deck diseases with different degrees occur in sequence in the early operation stage due to the comprehensive effects of factors such as complexity of self construction, variability of steel and asphalt concrete materials, variability of traffic environment and the like, and the normal use of the bridge and the modernization process of steel bridge construction are seriously influenced.
The existing orthotropic rigid bridge deck system diseases mainly comprise fatigue cracking of a steel bridge deck, cracking of a pavement layer, failure of a bonding layer of the pavement layer and the bonding layer of the steel bridge deck, and the like, the main reasons of the occurrence of the defects are small transverse rigidity and uneven distribution of the bridge deck, and the main current solution is to add a concrete rigid base layer to form a combined bridge deck system so as to improve the structural rigidity. Because dead weight is too big, the rigid base layer can be limited in the use of large span, and the fracture of rigid base layer can arouse the reflection crack of asphalt pavement layer simultaneously, not only influence the pleasing to the eye and the travelling comfort of driving on road surface, more importantly has shortened the life on road surface greatly.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide the U-shaped stiffening rib orthotropic steel bridge deck with the batten connection, which has the advantages of high transverse rigidity, good overall stress performance and excellent fatigue durability, can reduce the number of welding seams and effectively prolong the service life.
The technical scheme of the utility model is as follows: the utility model provides a U type stiffening rib orthotropic steel bridge deck board that batten strip is connected, includes a plurality of parallel arrangement's U type stiffening rib, parallel arrangement's U type stiffening rib upper portion is equipped with steel bridge deck roof, steel bridge deck roof upper portion is equipped with bridge deck pavement layer, be connected with a plurality of battens between the parallel arrangement's the U type stiffening rib, U type stiffening rib includes two parallel arrangement's web and connects the bottom plate of web bottom, the web with steel bridge deck roof lower surface fixed connection.
The bottom plate is provided with a plurality of bolts, and the lacing bars are fixedly connected with the bottom plate through the bolts.
The bottom plate is connected with the lacing bars in a welding way, and the welding seam is positioned on the inner side of the web flange.
The web plate is welded with the lower surface of the steel bridge surface top plate, a large welding toe double-side welding process is adopted in welding, and welding toes are welded on two sides of the contact part of the top of the web plate and the lower surface of the steel bridge surface top plate respectively.
The lacing bars are perpendicular to the U-shaped stiffening ribs.
The bridge deck pavement layer is an asphalt layer, and the asphalt layer is bonded with the steel bridge deck top plate.
The width range of the lacing bars is 100-150 mm, the thickness is 8mm, and the interval range of adjacent lacing bars is 500-750 mm.
The utility model has the technical effects that: 1. the transverse lacing bars are arranged on the U-shaped stiffening rib bottom plate, so that transverse connection of stiffening ribs can be effectively enhanced, transverse rigidity and rigidity distribution uniformity of a bridge deck system are improved, transverse bending rigidity is greatly improved, non-uniformity of rigidity near a web plate and near the joint of the U-shaped stiffening ribs and a top plate is greatly reduced, and meanwhile, stability and torsion resistance of the U-shaped stiffening ribs are also improved; 2. compared with the existing small transverse ribs, the transverse batten strips are arranged more densely longitudinally, and the contribution to the rigidity of the orthotropic steel bridge deck is more uniform; the welding with the top plate and the U-shaped stiffening rib web plate is not needed, the structure is simple, the connection is convenient, and the number of fatigue details is reduced; 3. when the batten strip is bolted, only the reserved bolt holes of the U-rib bottom plate are required to be bolted, so that the installation is convenient, the workload of transverse rib construction is greatly reduced, and the batten strip can be quickly replaced in the maintenance stage of the bridge; 4. the U-shaped stiffening rib and the top plate adopt a large weld toe double-side welding process, which is beneficial to prolonging the time of fatigue cracking and prolonging the fatigue life of welding seams at the U-shaped rib and the top plate. Under the conditions of meeting safety, practicability and economy, the fatigue performance, the stress performance and the durability are better.
Further description will be made below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view of an orthotropic steel deck with U-shaped stiffeners connected by battens according to an embodiment of the utility model.
Fig. 2 is a front view of a three-dimensional structure of an orthotropic steel deck with U-shaped stiffeners connected by battens according to an embodiment of the utility model.
Fig. 3 is a front view of a U-stiffener orthotropic steel deck with batten connection according to an embodiment of the present utility model.
Fig. 4 is a bottom view of a U-stiffener orthotropic steel deck with batten connection according to an embodiment of the present utility model.
Fig. 5 is a schematic diagram of a detail structure of an orthotropic steel deck with U-shaped stiffeners connected by battens according to an embodiment of the utility model.
Reference numerals: 1-U-shaped stiffening ribs; 11-a web; 12-a bottom plate; 2-bolts; 3-steel bridge deck top plate; 4-a bridge deck pavement layer; 5-toe welding; 6-lacing bar.
Detailed Description
Embodiment 1 is as shown in fig. 1-5, a U type stiffening rib orthotropic steel bridge deck board that batten strip is connected, including a plurality of parallel arrangement's U type stiffening rib 1, parallel arrangement's U type stiffening rib 1 upper portion is equipped with steel bridge deck roof 3, steel bridge deck roof 3 upper portion is equipped with bridge deck pavement layer 4, be connected with a plurality of battens 6 between the parallel arrangement's U type stiffening rib 1, U type stiffening rib 1 includes two parallel arrangement's web 11 and connects bottom plate 12 of web 11 bottom, web 11 with steel bridge deck roof 3 lower surface fixed connection.
In the actual use process, as the structural form that the intercostal batten strips 6 are connected between the bottom plates 12 of the U-shaped stiffening ribs 1 of the orthotropic steel bridge deck top plate 3 is adopted, the transverse connection of the stiffening ribs can be effectively enhanced, the transverse rigidity and the distribution uniformity, the stability and the torsion resistance of the bridge deck are improved, and compared with the traditional orthotropic steel bridge deck, the material consumption of the orthotropic steel bridge deck is not greatly increased, but the transverse rigidity and the rigidity distribution uniformity are obviously improved, the fatigue problem of the structure can be effectively relieved under the action of the wheel load, and the stress performance of the structure is improved; compared with the existing rigid base layer combined bridge deck, the U-shaped stiffening rib 1 orthotropic steel bridge deck top plate 3 connected by the batten strips 6 has lighter weight, smaller requirements on transportation and hoisting capacity, is more suitable for being used as a bridge deck system of a large-span bridge, and can not cause the problems of concrete cracking and the like.
Embodiment 2 preferably, in this embodiment, on the basis of embodiment 1, a plurality of bolts 2 are disposed on the bottom plate 12, and the batten 6 is fixedly connected with the bottom plate 12 through the bolts 2.
In the actual use process, the bottom plate 12 is provided with the plurality of bolts 2, the batten 6 is fixedly connected with the bottom plate 12 through the bolts 2, when the batten is bolted, only the reserved bolt holes of the U-rib bottom plate are required to be bolted, the installation is convenient, the workload of transverse rib construction is greatly reduced, the quick replacement of the batten can be carried out in the maintenance stage of the bridge, and the connecting structure of the batten can be used for industrial production connection and on-site bolt welding assembly, so that the method is suitable for a modern construction method, the construction speed is high, and the flexibility is high; meanwhile, the bridge has better fatigue performance, stress performance and durability under the conditions of safety, practicability and economy.
Embodiment 3 preferably, on the basis of embodiment 1 or embodiment 2, in this embodiment, the bottom plate 12 is welded to the batten 6, and the weld seam is located inside the flange of the web 11.
In the actual use process, the bottom plate 12 is welded and connected with the batten strip 6, the welding seam is positioned on the inner side of the flange of the web plate 11, and compared with transverse ribs in an orthotropic steel bridge deck, the beam-to-beam batten strip 6 is simple to manufacture, saves materials, is convenient to connect, and avoids opening holes of a U-rib bottom plate by adopting welding connection.
In embodiment 4, preferably, in this embodiment, the web 11 is welded to the lower surface of the steel bridge deck top plate 3 on the basis of embodiment 1 or embodiment 3, a large toe double-sided welding process is adopted in the welding, and two sides of a contact part between the top of the web 11 and the lower surface of the steel bridge deck top plate 3 are respectively welded with a toe 5.
In the actual use process, the web 11 is welded and connected with the lower surface of the top plate 3 of the steel bridge surface, and the welding adopts a large-toe double-sided welding process, so that the fatigue cracking time is prolonged, and the fatigue life of the welding seam at the U-shaped rib and the top plate is prolonged.
Embodiment 5 preferably, on the basis of embodiment 1 or embodiment 4, in this embodiment, the batten 6 is disposed perpendicular to the U-shaped stiffener 1.
In the actual use process, the batten strip 6 is vertically arranged with the U-shaped stiffening rib 1, so that the transverse stability problem of a bridge is well solved, the torsional rigidity of the section is increased, the distortion deformation of the section is small, and the cross section has good stability in the construction and use processes; compared with the transverse stiffening rib, the lacing bar connecting form has higher contribution efficiency to transverse bending rigidity, simpler structure and more outstanding fatigue resistance performance of the bridge deck.
Example 6 preferably, in this example, the bridge deck pavement layer 4 is an asphalt layer, and the asphalt layer is bonded to the steel bridge deck top plate 3 on the basis of example 1 or example 5.
In the practical use process, the bridge deck pavement layer 4 is an asphalt layer, the asphalt layer is adhered to the steel bridge deck top plate 3, the bridge deck structure can be suitable for bridge deck system structures with various main beams being steel box girders, is suitable for various bridge deck pavement system types, and can be a traditional steel+adhesive layer+asphalt pavement layer or a steel+concrete+asphalt pavement layer.
In embodiment 7, preferably, on the basis of embodiment 1, in this embodiment, the width of the batten 6 ranges from 100 to 150mm, the thickness is 8mm, and the distance between adjacent batten 6 ranges from 500 to 750mm.
In the practical use process, the width range of the batten strips 6 is 100-150 mm, the thickness is 8mm, the spacing range of the adjacent batten strips 6 is 500-750 mm, and the transverse rigidity and the uniformity of rigidity distribution are improved by replacing transverse stiffening ribs with the batten strips 6 with smaller spacing, and meanwhile, the number of welding seams of the transverse ribs, the top plate and the U-rib web plates is reduced.
The utility model comprises the following steps when in actual use:
s1: the method comprises the steps of machining and assembling the U-shaped stiffening ribs by using a digital machine tool, wherein the specific process comprises the steps of steel plate leveling, pretreatment, steel plate cutting, edge machining, drilling, groove machining and profiling;
s2: the U-shaped stiffening ribs and the steel bridge face top plate 3 are welded by adopting a big toe double-side welding construction process to form a steel bridge face plate welding section, then inter-rib batten strips 6 are arranged between the adjacent U-shaped stiffening ribs, and the welding process comprises the following specific steps: firstly, welding the inside of the U-shaped rib by adopting a welding robot, and then welding the outside of the U-shaped rib on a machine tool;
s3: after the welding sections of the steel bridge deck plate are completed, the steel bridge deck plate is transported to the site for assembly, and then a bridge deck pavement layer 4 is poured on the steel bridge deck top plate 3.
The utility model adopts the construction form that the inter-rib batten strips are connected between the lower U-shaped stiffening rib bottom plates of the orthotropic steel bridge deck, so that the transverse connection of stiffening ribs can be effectively enhanced, the transverse rigidity and the distribution uniformity, the stability and the torsion resistance of the bridge deck are improved, and compared with the traditional orthotropic steel bridge deck, the material consumption is not increased, but the transverse rigidity is obviously improved, the fatigue problem of the structure can be effectively relieved under the action of the wheel load, and the stress performance of the structure is improved; compared with the existing rigid base layer combined bridge deck, the U-shaped stiffening rib orthotropic steel bridge deck with the batten strip connected is lighter in weight, avoids the problems of cracking and difficult replacement of the rigid base layer, has smaller requirements on transportation and lifting capacity, and is more suitable for being used as a bridge deck system of a long-span bridge. The structure is suitable for bridge deck system structures of modern large-span bridges, has the characteristics of high construction speed and excellent structural stress performance, and meets the requirements of safety, practicality and economy.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (7)
1. The utility model provides a U stiffening rib orthotropic steel bridge panel that batten strip connects which characterized in that: including a plurality of parallel arrangement's U type stiffening rib (1), parallel arrangement's U type stiffening rib (1) upper portion is equipped with steel bridge deck roof (3), steel bridge deck roof (3) upper portion is equipped with bridge deck pavement layer (4), be connected with a plurality of battens (6) between parallel arrangement's U type stiffening rib (1), U type stiffening rib (1) include two parallel arrangement's web (11) and connect bottom plate (12) of web (11) bottom, web (11) with surface fixed connection under steel bridge deck roof (3).
2. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the base plate (12) is provided with a plurality of bolts (2), and the lacing bar (6) is fixedly connected with the base plate (12) through the bolts (2).
3. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the bottom plate (12) is connected with the lacing bar (6) in a welding way, and the welding seam is positioned on the inner side of the flange of the web plate (11).
4. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the web (11) is welded with the lower surface of the steel bridge surface top plate (3), a large welding toe double-side welding process is adopted in welding, and welding toes (5) are welded on two sides of the contact part of the top of the web (11) and the lower surface of the steel bridge surface top plate (3) respectively.
5. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the lacing bars (6) are perpendicular to the U-shaped stiffening ribs (1).
6. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the bridge deck pavement layer (4) is an asphalt layer, and the asphalt layer is bonded with the steel bridge deck top plate (3).
7. The batten-connected U-stiffener orthotropic steel deck plate of claim 1, wherein: the width range of the lacing bars (6) is 100-150 mm, the thickness is 8mm, and the distance range of the adjacent lacing bars (6) is 500-750 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321858244.4U CN220414002U (en) | 2023-07-14 | 2023-07-14 | U-shaped stiffening rib orthotropic steel bridge deck connected by battens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321858244.4U CN220414002U (en) | 2023-07-14 | 2023-07-14 | U-shaped stiffening rib orthotropic steel bridge deck connected by battens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220414002U true CN220414002U (en) | 2024-01-30 |
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ID=89642549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321858244.4U Active CN220414002U (en) | 2023-07-14 | 2023-07-14 | U-shaped stiffening rib orthotropic steel bridge deck connected by battens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220414002U (en) |
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2023
- 2023-07-14 CN CN202321858244.4U patent/CN220414002U/en active Active
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