CN212294340U - Connecting structure between transverse beams of hollow plate beam - Google Patents
Connecting structure between transverse beams of hollow plate beam Download PDFInfo
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- CN212294340U CN212294340U CN202020485814.XU CN202020485814U CN212294340U CN 212294340 U CN212294340 U CN 212294340U CN 202020485814 U CN202020485814 U CN 202020485814U CN 212294340 U CN212294340 U CN 212294340U
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Abstract
The utility model relates to a connecting structure between transverse beams of hollow plate beams, which is arranged on the adjacent hollow plate beams; 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 upper pressure-bearing steel structure is a steel plate, is vertically arranged with the steel plate between the beams and is of a T-shaped structure; 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 in a bolting mode and is abutted against the bottom of the hollow plate beam; 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 plate roof beam, concretely relates to connection structure between horizontal roof beam of hollow plate roof beam 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 only shear force is transmitted during seam correction, and neglects the complex stress state that the actual hinge joint is in bending, pulling and shearing.
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 connecting structure between transverse beams of hollow plate beams 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 connection structure between horizontal roof beam of hollow slab roof beam, which beam slab that it can realize damages and restores which beam slab, which hinge joint damages and restores which hinge joint, has disease pertinence, a great deal of advantage 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 connecting structure between transverse beams of hollow plate beams is arranged on adjacent hollow plate beams; 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 upper pressure-bearing steel structure is a steel plate, is vertically arranged with the steel plate between the beams and is of a T-shaped structure; 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 in a bolting mode and is abutted against the bottom of the hollow plate beam; 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 connection structure further does between horizontal roof beam of hollow plate roof beam: 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 connection structure further does between horizontal roof beam of hollow plate roof beam: 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 connection structure further does between horizontal roof beam of hollow plate roof beam: the steel plate between the beams comprises a standard beam interval section and a beam end change section; its minimum thickness should be not less than 8 mm.
The utility model discloses a connection structure further does between horizontal roof beam of hollow plate roof beam: 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 upper pressure-bearing steel structure is supported on the slope surface of the hinge joint.
The utility model discloses a connection structure further does between horizontal roof beam of hollow plate roof beam: the section of the lower pressure-bearing steel structure is L-shaped.
The utility model discloses a connection structure can still be for between horizontal roof beam of hollow slab roof beam: the lower pressure-bearing steel structure is provided with a bolt hole; a long hole is formed in the steel plate between the beams; the lower pressure-bearing steel structure is connected to the steel plate between the beams through bolts, and the bolts penetrate through the bolt holes and the long holes and can be adjusted up and down along the long holes.
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 a cross-sectional view of the hollow plate beam with the steel-inserting-method transverse connection structure of the utility model installed behind the hollow plate beam.
Fig. 2 is a vertical view of the hollow plate beam with the steel-inserting-method transverse connection structure of the utility model installed behind the hollow plate beam.
Fig. 3 is a schematic structural diagram of the transverse connection structure of the hollow plate girder steel-inserting method of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
Fig. 5 is a schematic view of the first embodiment when the inter-beam steel plate of fig. 2 is a standard beam interval.
Fig. 6 is a schematic view of the first embodiment when the inter-beam steel plate of fig. 2 is a beam end variation section.
Fig. 7 is a schematic view of the second embodiment when the inter-beam steel plate of fig. 2 is a standard beam interval.
Fig. 8 is a schematic view of the second embodiment when the inter-beam steel plate of fig. 2 is a beam end variation section.
Fig. 9 is a schematic structural view of a hollow slab beam.
[ detailed description ] embodiments
Please refer to fig. 1 to 9 of the specification, which illustrate a transverse connection structure of a hollow slab beam by steel insertion according to the present invention, and the connection structure is installed on an 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 hollow plate roof beam inserts steel method transverse connection structure by the roof beam between steel sheet 1, go up pressure-bearing steel construction 2, pressure-bearing steel construction 3 and cementing material 4 etc. several parts constitute, 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, cementing 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 steel plate 1 between the beams is inserted into the hinge joint 11, and a slurry passing round hole 5 is formed in the steel plate. As shown in the attached fig. 5 and 6, which are the first embodiment of the circular through-grouting hole 5, the diameter of the circular through-grouting hole 5 is not less than 10mm, the distance is not more than 50cm, the cementing materials 4 on both sides of the steel plate 1 between the beams are communicated, and the steel plate 1 between the beams is firmly combined.
As shown in fig. 7 and 8 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 upper pressure-bearing steel structure 2 is a steel plate, so that the steel plate is convenient to process and manufacture, is perpendicular to the steel plate 1 between the beams, and is of a T-shaped structure. 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 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 upper pressure-bearing steel structure 2 is supported on a slope surface 12 of the hinge joint 11.
The lower pressure-bearing steel structure 3 is connected to the lower end of the steel plate 1 between the beams in a bolting mode and is abutted against the bottom of the hollow plate beam 10. The section of the lower pressure-bearing steel structure 3 is L-shaped.
Further, a bolt hole (not numbered) is formed in the lower pressure-bearing steel structure 3; a long hole 6 is formed in the steel plate 1 between the beams; the lower pressure-bearing steel structure 3 is connected to the steel plate 1 between the beams through bolts 7, the bolts 7 penetrate through the bolt holes and the long holes 6 and can be adjusted up and down along the long holes 6, and therefore the position of the lower pressure-bearing steel structure 3 is conveniently adjusted, and 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 connecting structure of the hollow plate beam steel-inserting method 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 (7)
1. A connecting structure between transverse beams of hollow plate beams is arranged on adjacent hollow plate beams; 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 upper pressure-bearing steel structure is a steel plate, is vertically arranged with the steel plate between the beams and is of a T-shaped structure; 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 in a bolting mode and is abutted against the bottom of the hollow plate beam; 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 hollow plate girder transverse inter-beam connecting structure 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 hollow plate girder transverse inter-beam connecting structure 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 hollow plate girder transverse inter-beam connecting structure according to claim 1, wherein: the steel plate between the beams comprises a standard beam interval section and a beam end change section; its minimum thickness should be not less than 8 mm.
5. The hollow plate girder transverse inter-beam connecting structure 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 upper pressure-bearing steel structure is supported on the slope surface of the hinge joint.
6. The hollow plate girder transverse inter-beam connecting structure according to claim 1, wherein: the section of the lower pressure-bearing steel structure is L-shaped.
7. The hollow plate girder transverse inter-beam connecting structure according to claim 1, wherein: the lower pressure-bearing steel structure is provided with a bolt hole; a long hole is formed in the steel plate between the beams; the lower pressure-bearing steel structure is connected to the steel plate between the beams through bolts, and the bolts penetrate through the bolt holes and the long holes and can be adjusted up and down along the long holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020485814.XU CN212294340U (en) | 2020-04-07 | 2020-04-07 | Connecting structure between transverse beams of hollow plate beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020485814.XU CN212294340U (en) | 2020-04-07 | 2020-04-07 | Connecting structure between transverse beams of hollow plate beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789732A (en) * | 2021-07-29 | 2021-12-14 | 上海浦东新区公路建设发展有限公司 | Shear-resistant reinforcing method and shear-resistant reinforcing device for hollow plate beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789732A (en) * | 2021-07-29 | 2021-12-14 | 上海浦东新区公路建设发展有限公司 | Shear-resistant reinforcing method and shear-resistant reinforcing device for hollow plate beam |
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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. |