CN212294339U - Horizontal reinforced structure of hollow slab beam bridge slab - Google Patents
Horizontal reinforced structure of hollow slab beam bridge slab Download PDFInfo
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- CN212294339U CN212294339U CN202020485813.5U CN202020485813U CN212294339U CN 212294339 U CN212294339 U CN 212294339U CN 202020485813 U CN202020485813 U CN 202020485813U CN 212294339 U CN212294339 U CN 212294339U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 128
- 239000010959 steel Substances 0.000 claims abstract description 128
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 17
- 210000001503 joint Anatomy 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 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
- 239000003292 glue Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013031 physical testing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a transverse reinforcing structure of a hollow slab beam bridge slab, which is arranged on an adjacent hollow slab beam; hinge joints are arranged between the adjacent hollow plate beams; the steel plate comprises an inter-beam steel plate, an upper pressure-bearing steel structure, a lower pressure-bearing steel structure and a cementing material; the upper pressure-bearing steel structure is welded at the top end of the steel plate between the beams and is arranged at the upper edge of the hinge joint; the steel plate between the beams is inserted into the hinge joint; the lower pressure-bearing steel structure is connected to the lower end of the steel plate between the beams by bolts and is abutted against the bottom of the hollow plate beam; the lower pressure-bearing steel structure is specifically trapezoidal section steel, a plurality of through holes are formed in the two sides of the lower pressure-bearing steel structure, and bolts penetrate through the through holes and are accommodated in the trapezoidal section steel; the cementing material is filled in the hinge joint and is bonded with the hollow plate beam and the steel plate between the beams. The utility model can improve the shearing resistance of the original hollow plate girder; the transverse distribution coefficient of the hollow plate beam is effectively reduced; the cementing material can effectively seal the side cracks of the original hollow slab beam; the safety and the durability of the bridge structure are improved, and the service life of the bridge structure is prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a connection structure of hollow slab beam, concretely relates to horizontal reinforced structure of hollow slab beam bridge slab belongs to bridge engineering technical field.
[ background of the invention ]
The hollow slab beam is used from the sixties of the last century in China, and the original Soviet Union drawings are used as references in the initial stage. Subsequently, the department of transportation has published 5 versions of the standard drawings of hollow slabs in 1973, 1980, 1993, 2004 and 2014. The section of the early hollow slab has three characteristics: low beam height, small hinge joint, thin wall; the section of the hollow slab after 1993 begins to adopt deep hinge joints, and reinforcing steel bars are arranged in the hinge joints, so that plain concrete is not used.
The design of the cross-sectional form of the hollow plate is dependent on the design criteria at the time and on the design concept. The calculation of the transverse distribution coefficient of the hollow slab bridge in each design institute adopts a 'hinged slab method' proposed by the original Soviet Union Wurtz base in the last 60 years. The method assumes that the hinge joint only transmits shearing force, and neglects the complex stress state that the hinge joint is actually bent, pulled and sheared.
After hinge joint damage becomes the main damage form of the hollow slab beam in the later period, a series of concerns about hinge joint internal force are caused. Many researchers have conducted physical and numerical tests. Physical testing has yielded a number of relatively consistent qualitative conclusions: the cooperative working performance of the deep hinge joint is superior to that of the shallow hinge joint; the fatigue load has great influence on the shallow hinge joint, but has no obvious influence on the deep hinge joint; due to center loading, cracks always appear mid-span to 1/4 locations; various types of steel bars are added in the hinge joint, so that the stress is facilitated, and the like. The numerical test has several different processing modes of key problems, such as hinge joint surface processing, binding force value taking and the like, and the conclusion is sometimes new. For example, the interface is always the weakest link in the physical test, but the test piece may be damaged in shear or tension in the numerical test. The problem of vibration compaction of concrete in hinge joints is always a construction difficulty, and the construction quality is difficult to guarantee.
With the development of economy, the phenomenon of bridge overload is more and more serious. The overload accelerates the damage of the plate girder and increases the internal force of the hinge joint on one hand, and simultaneously further reduces the rigidity of the plate girder when the plate girder is damaged, thereby adversely affecting the transverse distribution of the load, increasing the internal force of the hinge joint and accelerating the damage of the hinge joint.
There are four common hinge joint reinforcement schemes at present: firstly, injecting glue at the bottom and sealing; second, pour the hinge joint concrete again; thirdly, attaching a steel plate to the bottom of the beam or reinforcing the beam by prestress; and fourthly, replacing the beam plate. However, the four reinforcement methods have disadvantages: three reinforcing methods, namely bottom glue injection sealing, hinge joint concrete pouring, beam bottom steel plate pasting or prestress, have the defects that the shearing resistance of the hollow slab cannot be improved and the maintenance is not thorough; although the reinforcing method for replacing the beam plate can achieve thorough maintenance, the method has the defects of expanded maintenance range, high maintenance cost, long construction period and great influence on traffic.
Therefore, in order to solve the above technical problems, it is necessary to provide an innovative transverse reinforcing structure of a hollow plate girder bridge plate to overcome the above-mentioned drawbacks of the prior art.
[ Utility model ] content
In order to solve the problem, the utility model aims to provide a horizontal reinforced structure of hollow slab beam bridge plate, which beam slab can be realized damaging and repair which beam slab, which hinge joint damage and repair which hinge joint, disease pertinence has, a great deal of advantages such as economical and practical, simple structure, construction convenience and durable.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a transverse reinforcing structure of a bridge plate of a hollow plate beam is arranged on an adjacent hollow plate beam; hinge joints are arranged between the adjacent hollow plate beams; the steel plate comprises an inter-beam steel plate, an upper pressure-bearing steel structure, a lower pressure-bearing steel structure and a cementing material; the upper pressure-bearing steel structure is welded at the top end of the steel plate between the beams and is arranged at the upper edge of the hinge joint; the steel plate between the beams is inserted into the hinge joint; the lower pressure-bearing steel structure is connected to the lower end of the steel plate between the beams by bolts and is abutted against the bottom of the hollow plate beam; the lower pressure-bearing steel structure is specifically trapezoidal section steel, a plurality of through holes are formed in the two sides of the lower pressure-bearing steel structure, and the bolts penetrate through the through holes and are accommodated in the trapezoidal section steel; the cementing material is filled in the hinge joint and is bonded with the hollow plate beam and the steel plate between the beams.
The utility model discloses a horizontal reinforced structure of hollow plate girder bridge plate further sets up to: the steel plate between the beams is provided with slurry passing round holes, the diameter of each slurry passing round hole is not less than 10mm, the distance between the slurry passing round holes is not more than 50cm, and the cementing materials on the two sides of the steel plate between the beams are communicated.
The utility model discloses a horizontal reinforced structure of hollow plate girder bridge plate further sets up to: the steel plate between the beams is provided with slurry passing holes which are long elliptical holes, the width of each slurry passing hole is not less than 10mm, the length of each slurry passing hole is not less than the height of the steel plate between the beams 1/2, and the distance between the slurry passing holes is not more than 50cm, so that the cementing materials on the two sides of the steel plate between the beams are communicated.
The utility model discloses a horizontal reinforced structure of hollow plate girder bridge plate further sets up to: the steel plate between the beams comprises a standard beam interval section and a beam end change section; the minimum thickness of the steel plate between the beams is not less than 8 mm.
The utility model discloses a horizontal reinforced structure of hollow plate girder bridge plate further sets up to: the length of the upper pressure-bearing steel structure is consistent with that of the upper edge of the steel plate between the beams; the thickness of the upper pressure-bearing steel structure is not less than 6 mm; the angle of the downhill surface of the upper pressure-bearing steel structure is consistent with the gradient of the hinge joint between the hollow plate beams, so that the side surface and the downhill surface of the upper pressure-bearing steel structure are in contact with the hollow plate beams.
The utility model discloses a horizontal reinforced structure of hollow plate girder bridge plate still sets up to: a long hole is formed in the steel plate between the beams; and the bolt of the lower pressure-bearing steel structure penetrates through the long hole and can be adjusted up and down along the long hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. restoring and optimizing the force transfer performance of the hinge joint between hollow plate beams
The utility model discloses compare with traditional concrete hinge joint, through increasing steel construction between the board, the effectual shear force transmission performance that has improved between hollow slab roof beam.
2. Improving the shear resistance of a hollow slab beam
The utility model discloses increased the steel sheet that is not less than 8mm thickness between hollow plate roof beam to through cementitious material's connection, obvious improvement the shear resistance of hollow plate roof beam.
3. The side cracks of the hollow plate girder are repaired
The utility model discloses a pressure slip casting can make cementitious material enter into the unable prosthetic hollow slab roof beam side crack in the traditional repair method, can the effectual durability that improves hollow slab roof beam.
4. Reduce maintenance range, and has little influence on traffic during construction
Compared with the traditional beam plate replacing and maintaining method, the utility model can only repair the damaged beam plate, which beam plate is damaged and repaired, which hinge joint is damaged and repaired, and has disease pertinence; meanwhile, the whole hole, the whole body and the whole bridge caused by the height difference of the new and old beam plates can not be caused, and even the maintenance range is expanded to the maintenance or the replacement of the lower structure; and further, the construction working surface is controlled within the minimum range, and the influence of the construction period on surrounding traffic is effectively reduced.
[ description of the drawings ]
Fig. 1 is the cross-sectional view of the hollow slab beam bridge slab of the utility model installed behind the hollow slab beam.
Fig. 2 is the utility model discloses a vertical view behind hollow plate beam is installed to the horizontal reinforced structure of hollow plate beam bridge slab.
Fig. 3 is a schematic structural view of the transverse reinforcing structure of the hollow slab beam bridge slab of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
Fig. 5 is a side view of fig. 4.
Fig. 6 is a schematic view of the first embodiment when the inter-beam steel plate of fig. 2 is a standard beam interval.
Fig. 7 is a schematic view of the first embodiment when the inter-beam steel plate of fig. 2 is a beam end variation section.
Fig. 8 is a schematic view of the second embodiment when the inter-beam steel plate of fig. 2 is a standard beam interval.
Fig. 9 is a schematic view of the second embodiment when the inter-beam steel plate of fig. 2 is a beam end variation section.
Fig. 10 is a schematic structural view of a hollow slab beam.
[ detailed description ] embodiments
Please refer to fig. 1 to 10 of the specification, which illustrate a transverse reinforcing structure of a hollow slab beam bridge slab of the present invention, wherein the connecting structure is installed on the adjacent hollow slab beam 10; hinge joints 11 are arranged between adjacent hollow plate girders 10. The connecting structure can be used for reinforcing the existing hollow slab beam bridges in various hinged modes and can also be used for building hinged structures between hollow slab beam bridges.
The utility model discloses a horizontal reinforced structure of hollow plate beam bridge slab comprises several parts such as steel sheet 1, last pressure-bearing steel construction 2, pressure-bearing steel construction 3 and cementitious material 4 down between the roof beam, wherein, steel sheet 1, last pressure-bearing steel construction 2 and pressure-bearing steel construction 3 are main stress structure down between the roof beam, and cementitious material 4 is the biography force structure.
The steel plate 1 between the beams is formed by a standard beam section (shown in figure 5) and a beam end changing section (shown in figure 6). The length of the steel plate 1 between the beams is determined according to construction hoisting capacity and construction convenience. The height of the steel plate 1 between the beams is determined according to the height of the hollow slab 10; the thickness of the steel plate 1 between the beams is determined according to the width of the hinge joint of the existing hollow slab beam, and the minimum thickness of the steel plate 1 between the beams is not less than 8 mm.
Further, the inter-beam steel plate 1 is inserted into the hinge joint 11, and is provided with a circular hole 5 for slurry passing, as shown in fig. 6 and 7 in the specification, which is a first embodiment of the circular hole 5 for slurry passing, the diameter of the circular hole 5 for slurry passing is not less than 10mm, and the distance is not more than 50cm, so that the cementing materials 4 at two sides of the inter-beam steel plate 1 are communicated and firmly combined with the inter-beam steel plate 1.
As shown in fig. 8 and 9 of the specification, a second embodiment of the grout hole 5 'is provided, the grout hole 5' is a long elliptical hole, has a width of not less than 10mm, a length of not less than 1/2 m-beam steel plate height, and a distance of not more than 50cm, and is suitable for the case that the flow of the binding material 4 is weak, so that the binding material 4 at both sides of the steel plate 1 between beams is communicated and is firmly combined with the steel plate 1 between beams.
The upper pressure-bearing steel structure 2 is welded at the top end of the steel plate 1 between the beams and is arranged at the upper edge of the hinge joint 11. The width of the upper pressure-bearing steel structure 2 is determined according to the width of the upper edge of the hinge joint 11 of the hollow plate girder 10. The angle of the lower slope surface 21 of the upper pressure-bearing steel structure 2 is consistent with the gradient of the hinge joint 11 of the hollow plate girder 10, so that the side surface of the upper pressure-bearing steel structure 2 and the lower slope surface 21 are both contacted with the hollow plate girder, the force bearing performance of the upper pressure-bearing steel structure 2 is good, and the upper pressure-bearing steel structure is not easy to deform. The length of the upper pressure-bearing steel structure 2 is consistent with that of the upper edge of the steel plate 1 between the beams. The thickness of the upper pressure-bearing steel structure is determined by structural stress calculation, but is not less than 6 mm.
The lower pressure-bearing steel structure 3 is connected to the lower end of the steel plate 1 between the beams through bolts 7 and is abutted against the bottom of the hollow plate beam 10. The lower pressure-bearing steel structure 3 is specifically trapezoidal section steel, a plurality of through holes 31 are formed in the two sides of the lower pressure-bearing steel structure, the bolts 7 penetrate through the through holes 31 and are contained in the trapezoidal section steel, so that the bolts 7 are not exposed, the bolts 7 are prevented from being exposed to the sun and rain, and the appearance of the lower pressure-bearing steel structure 3 is attractive.
Further, a long hole 6 is formed in the steel plate 1 between the beams; the bolt 7 of the lower pressure-bearing steel structure 3 penetrates through the long hole 6 and can be adjusted up and down along the long hole 6, so that the position of the lower pressure-bearing steel structure 3 is conveniently adjusted, and the installation is facilitated.
The cementing material 4 is filled in the hinge joint 11 and is bonded with the hollow plate beam 10 and the steel plate 1 between the beams; meanwhile, the cementing material 4 has the function of closing the side cracks of the hollow plate girder 10. The cementing material 4 can be added with aggregate according to the gap between the steel plate 1 between the beams and the hollow plate beam 10.
The method for transversely connecting the hollow plate beam by adopting the transverse reinforcing structure of the hollow plate beam bridge plate comprises the following process steps:
1) prefabricating an inter-beam steel plate 1, an upper pressure-bearing steel structure 2 and a lower pressure-bearing steel structure 3 in a factory, and welding the inter-beam steel plate 1 and the upper pressure-bearing steel structure 2;
2) the steel plate 1 between the beams and the upper pressure-bearing steel structure 2 are arranged from top to bottom on a construction site; mounting a lower pressure-bearing steel structure 3 below the hollow plate girder 10, and connecting the lower pressure-bearing steel structure 3 to the steel plate 1 between the girders by using bolts 7;
3) in the construction site, the cementing material 4 is injected below the hollow slab beam 10;
4) pouring bridge deck concrete and a bridge deck system structure 8 on the construction site;
5) and finally, constructing auxiliary facilities on the bridge deck, completing and accepting all the procedures, and putting the whole bridge into operation after acceptance.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (6)
1. A transverse reinforcing structure of a bridge plate of a hollow plate beam is arranged on an adjacent hollow plate beam; hinge joints are arranged between the adjacent hollow plate beams; the method is characterized in that: the steel plate comprises an inter-beam steel plate, an upper pressure-bearing steel structure, a lower pressure-bearing steel structure and a cementing material; the upper pressure-bearing steel structure is welded at the top end of the steel plate between the beams and is arranged at the upper edge of the hinge joint; the steel plate between the beams is inserted into the hinge joint; the lower pressure-bearing steel structure is connected to the lower end of the steel plate between the beams by bolts and is abutted against the bottom of the hollow plate beam; the lower pressure-bearing steel structure is specifically trapezoidal section steel, a plurality of through holes are formed in the two sides of the lower pressure-bearing steel structure, and the bolts penetrate through the through holes and are accommodated in the trapezoidal section steel; the cementing material is filled in the hinge joint and is bonded with the hollow plate beam and the steel plate between the beams.
2. The transverse reinforcing structure of a hollow plate girder bridge plate according to claim 1, wherein: the steel plate between the beams is provided with slurry passing round holes, the diameter of each slurry passing round hole is not less than 10mm, the distance between the slurry passing round holes is not more than 50cm, and the cementing materials on the two sides of the steel plate between the beams are communicated.
3. The transverse reinforcing structure of a hollow plate girder bridge plate according to claim 1, wherein: the steel plate between the beams is provided with slurry passing holes which are long elliptical holes, the width of each slurry passing hole is not less than 10mm, the length of each slurry passing hole is not less than the height of the steel plate between the beams 1/2, and the distance between the slurry passing holes is not more than 50cm, so that the cementing materials on the two sides of the steel plate between the beams are communicated.
4. The transverse reinforcing structure of the hollow slab beam bridge panel according to claim 2, wherein: the steel plate between the beams comprises a standard beam interval section and a beam end change section; the minimum thickness of the steel plate between the beams is not less than 8 mm.
5. The transverse reinforcing structure of a hollow plate girder bridge plate according to claim 1, wherein: the length of the upper pressure-bearing steel structure is consistent with that of the upper edge of the steel plate between the beams; the thickness of the upper pressure-bearing steel structure is not less than 6 mm; the angle of the downhill surface of the upper pressure-bearing steel structure is consistent with the gradient of the hinge joint between the hollow plate beams, so that the side surface and the downhill surface of the upper pressure-bearing steel structure are in contact with the hollow plate beams.
6. The transverse reinforcing structure of a hollow plate girder bridge plate according to claim 1, wherein: a long hole is formed in the steel plate between the beams; and the bolt of the lower pressure-bearing steel structure penetrates through the long hole and can be adjusted up and down along the long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485813.5U CN212294339U (en) | 2020-04-07 | 2020-04-07 | Horizontal reinforced structure of hollow slab beam bridge slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485813.5U CN212294339U (en) | 2020-04-07 | 2020-04-07 | Horizontal reinforced structure of hollow slab beam bridge slab |
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| Publication Number | Publication Date |
|---|---|
| CN212294339U true CN212294339U (en) | 2021-01-05 |
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| CN202020485813.5U Active CN212294339U (en) | 2020-04-07 | 2020-04-07 | Horizontal reinforced structure of hollow slab beam bridge slab |
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| CN (1) | CN212294339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115748521A (en) * | 2022-12-16 | 2023-03-07 | 中铁桥隧技术有限公司 | A system and method for improving the overall stiffness of a hollow slab girder bridge |
-
2020
- 2020-04-07 CN CN202020485813.5U patent/CN212294339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115748521A (en) * | 2022-12-16 | 2023-03-07 | 中铁桥隧技术有限公司 | A system and method for improving the overall stiffness of a hollow slab girder bridge |
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Address after: 312000 21st floor, 177 Jiefang Avenue, Yuecheng District, Shaoxing City, Zhejiang Province Patentee after: HUAHUI ENGINEERING DESIGN GROUP Co.,Ltd. Patentee after: HUAHUI CONSTRUCTION GROUP Co.,Ltd. Address before: 312000 Huahui Building, 339 Zhongxing North Road, Shaoxing City, Zhejiang Province Patentee before: HUAHUI ENGINEERING DESIGN GROUP Co.,Ltd. Patentee before: HUAHUI CONSTRUCTION GROUP Co.,Ltd. |