CN221235899U - Prestress combined beam structure - Google Patents
Prestress combined beam structure Download PDFInfo
- Publication number
- CN221235899U CN221235899U CN202322942588.XU CN202322942588U CN221235899U CN 221235899 U CN221235899 U CN 221235899U CN 202322942588 U CN202322942588 U CN 202322942588U CN 221235899 U CN221235899 U CN 221235899U
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- reinforcing plate
- outer reinforcing
- concrete box
- box girder
- plate
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 76
- 239000004567 concrete Substances 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims description 6
- 210000002435 tendon Anatomy 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Rod-Shaped Construction Members (AREA)
Abstract
The utility model discloses a prestress combined beam structure, which comprises a concrete box beam, wherein a beam inner prestress rib is arranged in the concrete box beam, a first outer reinforcing plate and a second outer reinforcing plate are arranged on the outer side of the concrete box beam, a first positioning plate is arranged on one side of each of the first outer reinforcing plate and the second outer reinforcing plate, an outer reinforcing supporting mechanism is arranged between the two first positioning plates, and an inner reinforcing supporting mechanism is arranged in a cavity in the concrete box beam.
Description
Technical Field
The utility model relates to the technical field of box girders, in particular to a prestress combined girder structure.
Background
The box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-situ box girder. The box girder combined bridge girder erection machine prefabricated in the independent place can be erected after the lower engineering is completed, so that the engineering progress can be accelerated, and the construction period can be saved; cast-in-situ box girders are mostly used for large continuous bridges. The materials are commonly divided into two types, namely a prestressed reinforced concrete box girder and a steel box girder. The prestressed reinforced concrete box girder is constructed on site, and besides longitudinal prestress, transverse prestress is arranged on some of the prestressed reinforced concrete box girders; the steel box girder is generally processed in a factory and then transported to a site for installation, and has an all-steel structure and also has a part of reinforced concrete pavement layers. Because of the rapid increase of traffic flow, some bridges are not heavy enough, and the bridges are required to be reinforced and reformed in order to ensure driving safety.
The prestressed concrete combined box girder reinforcing structure with the application number of CN202220211687.3 in the prior art comprises external prestressed tendons, a newly-added transverse beam, a newly-added anchoring toothed plate, a bogie and a limiting shock absorber; the eccentric ring restraining the guide sleeve can rotate relative to the angle steel, so that the axis position of the guide sleeve is finely adjusted, and the axis positioning precision of the external prestressed tendon is improved. But the structural strength and the bearing capacity of the outer side of the lower part of the concrete box girder are more general, so that the stability of the lower part of the concrete box girder in supporting and using is affected, and the structural strength of the cavity in the concrete box girder is low and easy to deform.
Disclosure of utility model
The utility model aims to provide a prestress combined beam structure, which solves the problems that the structural strength and the bearing capacity of the outer side of the lower part of a concrete box beam are more common in the prior art, so that the stability of the lower part of the concrete box beam in supporting and using is affected, the structural strength of a cavity in the concrete box beam is low, and the deformation is easy.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a prestressing force combination beam structure, includes the concrete box girder, the inside roof beam prestressing force muscle that is equipped with of concrete box girder, the concrete box girder outside is equipped with first outer reinforcing plate and the outer reinforcing plate of second, first outer reinforcing plate and the outer reinforcing plate one side of second all are equipped with first locating plate, and are equipped with outer supporting mechanism between two first locating plates, be equipped with in the cavity in the concrete box girder and strengthen supporting mechanism.
Further, the first outer reinforcing plate is fixedly connected with the concrete box girder through a first anchor, and the second outer reinforcing plate is fixedly connected with the concrete box girder through a second anchor.
Further, the first outer reinforcing plate and the second outer reinforcing plate are made of stainless steel plates, and beam outer prestress ribs are arranged on the outer sides of the first outer reinforcing plate and the second outer reinforcing plate.
Further, the outer supporting mechanism comprises a central supporting cylinder, the inner threads at the two ends of the central supporting cylinder are provided with a first outer supporting rod and a second outer supporting rod in opposite directions, one ends of the first outer supporting rod and the second outer supporting rod are provided with second positioning plates, and the second positioning plates are clamped between the two first positioning plates.
Further, interior enhancement supporting mechanism is including the interior branch that is equipped with, interior branch both ends are equipped with the internal screw rod through the opposite screw thread of positioning seat, two interior screw rod one ends all be equipped with interior supporting seat, and interior supporting seat card is established in the both corners in cavity.
Furthermore, the second locating plate adopts an acute angle plate, and the outer side of the central support cylinder is provided with a reinforcing raised line.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the first outer reinforcing plate and the second outer reinforcing plate are arranged on the outer side of the concrete box girder, and the outer supporting mechanism is arranged between the first outer reinforcing plate and the second outer reinforcing plate, so that the structural strength of the outer side of the lower part of the concrete box girder is increased, the bearing capacity is stronger, and the stability of the lower part of the concrete box girder in supporting and using is improved.
2. According to the utility model, the first outer reinforcing plate and the second outer reinforcing plate are made of stainless steel plates, and the beam outer prestressed ribs are arranged on the outer sides of the first outer reinforcing plate and the second outer reinforcing plate, so that the first outer reinforcing plate and the second outer reinforcing plate are high in plate structure strength, the rigidity of the box girder member is improved, the occurrence time of cracks is delayed, and the durability of the member is improved.
3. According to the utility model, the inner reinforcing supporting mechanism is arranged in the cavity in the concrete box girder, the inner reinforcing supporting mechanism comprises the inner supporting rods, the inner screw rods are arranged at the two ends of the inner supporting rods through the opposite threads of the positioning seats, the inner supporting seats are arranged at one ends of the two inner screw rods, and the inner supporting seats are clamped in the two corners of the cavity, so that the cavity in the concrete box girder can be supported, the structural strength in the concrete box girder is improved, the probability of cavity deformation is reduced, and the service life of the concrete box girder is prolonged.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a front elevational view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the internal reinforcing support mechanism of the present utility model;
FIG. 3 is a schematic view of the structure of the external support mechanism of the present utility model.
In the figure: 1. a concrete box girder; 2. prestress rib in the beam; 3. a first outer reinforcing plate; 4. a first anchor; 5. a second outer reinforcing plate; 6. a second anchor; 7. a first positioning plate; 8. a central support tube; 9. a first outer strut; 10. a second outer strut; 11. a second positioning plate; 12. an inner support base; 14. an inner screw; 15. an inner strut; 16. a positioning seat; 17. a prestressed tendon outside the beam; 18. reinforcing the convex strips.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, fig. 2 and fig. 3, in the embodiment of the utility model, a prestressed composite beam structure includes a concrete box beam 1, in which a beam inner prestressed rib 2 is disposed in the concrete box beam 1, a plurality of beam inner prestressed ribs 2 are disposed at equal intervals, a first outer reinforcing plate 3 and a second outer reinforcing plate 5 are disposed on the outer side of the concrete box beam 1, a first positioning plate 7 is disposed on one side of the first outer reinforcing plate 3 and one side of the second outer reinforcing plate 5, and an outer reinforcing support mechanism is disposed between the two first positioning plates 7, so that the structural strength of the outer side of the lower portion of the concrete box beam 1 is increased, the bearing capacity is strong, the stability of the lower portion of the concrete box beam 1 in use is improved, an inner reinforcing support mechanism is disposed in a hollow in the concrete box beam 1, the hollow in the concrete box beam 1 can be supported, the structural strength of the inner portion of the concrete box beam 1 is increased, and the probability of hollow deformation is reduced.
Preferably, the first outer reinforcing plate 3 is fixedly connected with the concrete box girder 1 through the first anchor 4, the second outer reinforcing plate 5 is fixedly connected with the concrete box girder 1 through the second anchor 6, the first outer reinforcing plate 3 and the second outer reinforcing plate 5 are conveniently fixed on the outer side of the lower end of the concrete box girder 1, and the stability of the installation and fixation of the outer reinforcing plates is higher.
Preferably, the first outer reinforcing plate 3 and the second outer reinforcing plate 5 are made of stainless steel plates, and beam outer prestressed tendons 17 are arranged on the outer sides of the first outer reinforcing plate 3 and the second outer reinforcing plate 5, so that the first outer reinforcing plate 3 and the second outer reinforcing plate 5 are high in structural strength, the rigidity of the box girder member is improved, and the durability of the member is improved.
Preferably, the outer reinforcing support mechanism comprises a central support cylinder 8, wherein first outer support rods 9 and second outer support rods 10 are oppositely arranged at two ends of the central support cylinder 8 in threads, a second positioning plate 11 is arranged at one end of each of the first outer support rods 9 and the second outer support rods 10, and the second positioning plate 11 is clamped between the two first positioning plates 7, so that the first outer support rods 9 and the second outer support rods 10 can be oppositely moved and adjusted through rotating and adjusting the central support cylinder 8, the outer reinforcing support mechanism is convenient to install and fix, and the stability of installation and fixation is higher.
Preferably, the internal reinforcement supporting mechanism comprises an internal supporting rod 15, the two ends of the internal supporting rod 15 are provided with internal screws 14 through opposite threads of a positioning seat 16, one ends of the two internal screws 14 are provided with an internal supporting seat 12, and the internal supporting seat 12 is clamped in two corners of a cavity, so that the cavity in the concrete box girder 1 can be supported, the internal structural strength of the concrete box girder 1 is improved, the probability of cavity deformation is reduced, and the service life of the concrete box girder is prolonged.
Preferably, the second locating plate 11 adopts sharp angle board, has increased the area that supports between first outer branch 9 and the outer branch 10 one end of second and first locating plate 7 and the concrete box girder 1, is favorable to improving the stability that outer supporting mechanism both ends installation were fixed, and the center support 8 outside is equipped with strengthens sand grip 18, has increased the outside structural strength of center support 8, is convenient for carry out rotation regulation to center support 8 moreover and uses the processing.
The working principle and the using flow of the utility model are as follows: the first outer reinforcing plate 3 and the second outer reinforcing plate 5 are arranged on the outer side of the concrete box girder 1, and an outer supporting mechanism is arranged between the first outer reinforcing plate 3 and the second outer reinforcing plate 5, so that the structural strength of the outer side of the lower part of the concrete box girder 1 is increased, the bearing capacity is stronger, and the stability of the lower part supporting and using of the concrete box girder 1 is improved; and all adopt corrosion resistant plate through first outer reinforcing plate 3 and second outer reinforcing plate 5, and first outer reinforcing plate 3 and second outer reinforcing plate 5 outside all are equipped with roof beam external prestress rib 17 for first outer reinforcing plate 3 and second outer reinforcing plate 5 structural strength are higher, are favorable to improving the rigidity of case beam member, postpone the time that the crack appears, increase the durability of member.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a prestressing force combination beam structure, includes concrete box girder (1), its characterized in that: the concrete box girder (1) is inside to be equipped with roof beam internal prestress rib (2), the concrete box girder (1) outside is equipped with first outer reinforcing plate (3) and second outer reinforcing plate (5), first outer reinforcing plate (3) and second outer reinforcing plate (5) one side all are equipped with first locating plate (7), and are equipped with outer reinforcing supporting mechanism between two first locating plates (7), be equipped with in the cavity in the concrete box girder (1) and strengthen supporting mechanism.
2. A prestressed composite girder structure according to claim 1, wherein: the first outer reinforcing plate (3) is fixedly connected with the concrete box girder (1) through a first anchor nail (4), and the second outer reinforcing plate (5) is fixedly connected with the concrete box girder (1) through a second anchor nail (6).
3. A prestressed composite girder structure according to claim 2, wherein: the first outer reinforcing plate (3) and the second outer reinforcing plate (5) are made of stainless steel plates, and beam outer prestressed tendons (17) are arranged on the outer sides of the first outer reinforcing plate (3) and the second outer reinforcing plate (5).
4. A prestressed composite girder structure according to claim 1, wherein: the outer supporting mechanism comprises a central supporting cylinder (8), first outer supporting rods (9) and second outer supporting rods (10) are arranged at two ends of the central supporting cylinder (8) in opposite directions through inner threads, second positioning plates (11) are arranged at one ends of the first outer supporting rods (9) and the second outer supporting rods (10), and the second positioning plates (11) are clamped between the two first positioning plates (7).
5. A prestressed composite girder structure according to claim 1, wherein: the inner reinforcing support mechanism comprises an inner support rod (15) which is arranged, an inner screw rod (14) is arranged at two ends of the inner support rod (15) through opposite threads of a positioning seat (16), an inner support seat (12) is arranged at one end of the inner screw rod (14), and the inner support seat (12) is clamped in two corners of the cavity.
6. A prestressed composite girder structure according to claim 4, wherein: the second positioning plate (11) adopts an acute angle plate, and a reinforcing raised line (18) is arranged on the outer side of the center support tube (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322942588.XU CN221235899U (en) | 2023-11-01 | 2023-11-01 | Prestress combined beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322942588.XU CN221235899U (en) | 2023-11-01 | 2023-11-01 | Prestress combined beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221235899U true CN221235899U (en) | 2024-06-28 |
Family
ID=91598519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322942588.XU Active CN221235899U (en) | 2023-11-01 | 2023-11-01 | Prestress combined beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221235899U (en) |
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2023
- 2023-11-01 CN CN202322942588.XU patent/CN221235899U/en active Active
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