CN221052356U - Assembled bridge steel structure box girder - Google Patents
Assembled bridge steel structure box girder Download PDFInfo
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- CN221052356U CN221052356U CN202322657430.8U CN202322657430U CN221052356U CN 221052356 U CN221052356 U CN 221052356U CN 202322657430 U CN202322657430 U CN 202322657430U CN 221052356 U CN221052356 U CN 221052356U
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- fixedly connected
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- supporting plate
- box girder
- steel structure
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to the technical field of bridge structures and discloses an assembled bridge steel structure box girder which comprises a bottom plate, wherein a lower supporting plate is fixedly connected to the top end of the bottom plate, supporting rods are fixedly connected to the left side and the right side of the top end of the lower supporting plate, an upper supporting plate is fixedly connected to the top end of the supporting rods, bearing columns are fixedly connected to the left side and the right side of the bottom end of the upper supporting plate, a first inclined rod and a second inclined rod are respectively and fixedly connected to the left side and the right side of the bearing columns, a side supporting plate is fixedly connected to the outer side of the supporting rods, and an inclined web is fixedly connected to the bottom end of the side supporting plate. According to the utility model, the bearing columns, the first diagonal rods and the second diagonal rods are uniformly transferred to the surface of the bottom plate, and the first reinforcing ribs are matched, so that the overall strength and stability of the steel box girder are enhanced, and then the side support plates, the support plates and the upper support plates are used for enhancing the strength of the diagonal webs and avoiding the phenomenon of buckling damage of the diagonal webs.
Description
Technical Field
The utility model relates to the technical field of bridge structures, in particular to an assembled bridge steel structure box girder.
Background
The steel box girder, called steel plate box girder, is generally formed by connecting a top plate, a bottom plate, a web plate, a diaphragm plate, a longitudinal diaphragm plate, stiffening ribs and the like in a full welding mode. Is commonly used on bridges with larger spans, and is called a steel box girder because of the appearance of a box.
The current steel box girder is in the same place the part through welded mode mostly, only supports steel box girder whole through diaphragm and longitudinal baffle, and most fixed hoist and mount is carried out from steel box girder both sides during hoist and mount, easily leads to hoist and mount compressive deformation, and hoist and mount stability is relatively poor, lacks simultaneously to the supporting measure of inclined web and sideboard, easily appears inclined web and takes place the wrinkle phenomenon of destroying.
Disclosure of utility model
In order to make up for the defects, the utility model provides an assembled bridge steel structure box girder, which aims to solve the problems that in the prior art, the steel box girder is subjected to fixed hoisting, the hoisting is easy to deform under pressure, the hoisting stability is poor, and meanwhile, the supporting measures for inclined webs and side plates are lacked, so that the phenomenon of buckling and damage of the inclined webs is easy to occur.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an assembled bridge steel construction case roof beam, includes the bottom plate, the top fixedly connected with bottom plate of bottom plate, the equal fixedly connected with bracing piece in top left and right sides of bottom plate, the top fixedly connected with upper supporting plate of bracing piece, the equal fixedly connected with spandrel post in bottom left and right sides of upper supporting plate, the first down tube of left and right sides fixedly connected with and second down tube respectively of spandrel post, both ends the equal fixedly connected with in top both sides of bottom plate of first down tube and second down tube, the outside fixedly connected with side supporting plate of bracing piece, side supporting plate bottom fixedly connected with oblique web, the equal apart from fixedly connected with L template in both ends bottom side of oblique web, the inside fixedly connected with dead lever of L template, upside fixedly connected with layer board in the top of side supporting plate, the equal fixedly connected with in top of layer board in the bottom of upper supporting plate.
Through above-mentioned technical scheme, support fixedly through spandrel post, first diagonal bar and second diagonal bar to last backup pad and lower backup pad, evenly transmit the surface of bottom plate with pressure via first diagonal bar and first diagonal bar, the stability of box girder has been increased, then form the support through layer board and last backup pad offside backup pad, and be connected with the third connecting plate and be the I shape between the side backup pad, increase the stability of inclined web, form right angled triangle between side backup pad, layer board and the last backup pad then, when supporting the inclined web, the intensity of inclined web has further been strengthened, simultaneously, carry out secondary support to the inclined web outside via the dead lever through the L template, avoid appearing the inclined web and take place the crumple and destroy the phenomenon.
As a further description of the above technical solution:
The top of dead lever all fixedly connected with first connecting plate, the outside fixedly connected with inclined web of first connecting plate, the equal equidistance fixedly connected with second strengthening rib in the left and right sides of inclined web.
Through above-mentioned technical scheme, support the outside of inclined web through dead lever and first connecting plate, the cooperation second strengthening rib consolidates the outside of inclined web, improves the intensity of inclined web.
As a further description of the above technical solution:
And a third connecting plate is fixedly connected between the front side supporting plate and the rear side supporting plate.
Through above-mentioned technical scheme, the third connecting plate passes through bolt fixed connection in the side support board, has strengthened the inside intensity of inclined web, has improved the stability of inclined web.
As a further description of the above technical solution:
And a second connecting plate is fixedly connected between the front and rear upper supporting plates.
Through above-mentioned technical scheme, will go up fixed connection between the backup pad through the second connecting plate, when dispersing pressure, increased the stability of last backup pad.
As a further description of the above technical solution:
The bottom fixedly connected with mount pad of spandrel post, the bottom fixedly connected with bottom sprag board of mount pad.
Through above-mentioned technical scheme, form the support through the spandrel post between upper supporting plate and lower backup pad, improved the stability of case roof beam.
As a further description of the above technical solution:
the middle part of the top end of the bottom plate is fixedly connected with a middle web plate, the front end and the rear end of the middle web plate are fixedly connected with longitudinal partition plates at equal intervals, and transverse partition plates are fixedly connected with the inner parts of the longitudinal partition plates at equal intervals.
Through above-mentioned technical scheme, through well web, longitudinal baffle and diaphragm, make the holistic intensity of case roof beam and stability obtain improving.
As a further description of the above technical solution:
the bottom of bottom plate all equidistance fixedly connected with first strengthening rib.
Through above-mentioned technical scheme, under the effect of first strengthening rib, strengthened the intensity of bottom plate, improved the stressing of bottom plate.
As a further description of the above technical solution:
the top of the upper supporting plate is fixedly connected with a top plate.
Through above-mentioned technical scheme, support the roof through last backup pad, when improving roof intensity, be convenient for disperse pressure.
The utility model has the following beneficial effects:
1. According to the utility model, the top plate is supported by the bearing column and the upper supporting plate, the pressure is uniformly transmitted to the surface of the bottom plate through the first diagonal rod and the first diagonal rod, the top plate and the bottom plate are supported and fixed by the upper supporting plate, the bottom plate and the lower supporting plate, the stability of the box girder is improved, the left side and the right side of the supporting plate are fixedly connected with the side supporting plates, a right triangle is formed with the upper supporting plate, the strength of the box girder is further enhanced, the first reinforcing rib on the bottom plate is matched, the stress area is increased, meanwhile, the pressure is reduced, the integral strength and the stability of the steel box girder are enhanced, and the local stress or accidental bending caused by the lifting and the tension of the steel box girder is prevented.
2. According to the utility model, the support is formed by the supporting plate and the upper supporting plate on the opposite side supporting plate, the side supporting plates are connected with the third connecting plate in an I shape, so that the stability of the inclined web plate is improved, then, a right triangle is formed among the side supporting plates, the supporting plate and the upper supporting plate, and the second reinforcing rib is matched, so that the strength of the inclined web plate is further enhanced while the inclined web plate is supported, and meanwhile, the phenomenon of buckling damage of the inclined web plate is avoided while the L-shaped plate is used for carrying out secondary support on the inclined web plate through the fixing rod and the first connecting plate.
Drawings
FIG. 1 is an elevation view of an assembled bridge steel structure box girder in accordance with the present utility model;
FIG. 2 is a schematic view of the internal structure of an assembled bridge steel structure box girder according to the present utility model;
Fig. 3 is a schematic diagram of a supporting structure of an assembled bridge steel structure box girder according to the present utility model.
Legend description:
1. A bottom plate; 2. a first diagonal bar; 3. a second diagonal bar; 4. a mounting base; 5. a first reinforcing rib; 6. a second reinforcing rib; 7. a first connection plate; 8. an L-shaped plate; 9. a side support plate; 10. a supporting plate; 11. a support rod; 12. an upper support plate; 13. a top plate; 14. a fixed rod; 15. a sloping web; 16. a lower support plate; 17. a second connecting plate; 18. a diaphragm; 19. a middle web; 20. a longitudinal partition; 21. a bearing column; 22. and a third connecting plate.
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. 1-3, one embodiment provided by the present utility model is: the utility model provides an assembled bridge steel construction case roof beam, including bottom plate 1, the top fixedly connected with bottom plate 16 of bottom plate 1, the top left and right sides of bottom plate 16 all fixedly connected with bracing piece 11, the top fixedly connected with upper support plate 12 of bracing piece 11, the bottom left and right sides of upper support plate 12 all fixedly connected with spandrel post 21, the left and right sides of spandrel post 21 is fixedly connected with first diagonal rod 2 and second diagonal rod 3 respectively, the bottom of both ends first diagonal rod 2 and second diagonal rod 3 all fixedly connected with is in the top both sides of bottom plate 16, form the support to roof 13 through spandrel post 21 and upper support plate 12, under the effect that first diagonal rod 2 and second diagonal rod 3 are triangle, with pressure evenly transfer to bottom plate 1, support through bracing piece 11 between upper support plate 12 and the bottom support plate 16, increase the stability of case roof beam, the left and right sides fixedly connected with side support plate 9 of bracing piece 11, the upper supporting plate 12, the side supporting plate 9 and the supporting rod 11 form a right triangle, the strength of the box girder is further enhanced, the side supporting plate 9 is fixedly connected to the outer side of the supporting rod 11, the bottom end of the side supporting plate 9 is fixedly connected with the inclined web 15, the bottom sides of the left end and the right end of the inclined web 15 are fixedly connected with the L-shaped plate 8 at equal intervals, the fixing rod 14 is fixedly connected to the inside of the L-shaped plate 8, the supporting plate 10 is fixedly connected to the middle upper side of the top end of the side supporting plate 9, the top end of the supporting plate 10 is fixedly connected to the bottom end of the upper supporting plate 12, the supporting is formed on the side supporting plate 9 through the supporting plate 10, the right triangle is formed among the side supporting plate 9, the supporting plate 10 and the upper supporting plate 12, the inclined web 15 is supported by matching with the second reinforcing ribs 6, the strength of the inclined web 15 is further enhanced, the fixed connection can be welding or bolt fixing, and the assembly is convenient.
The top of dead lever 14 all fixedly connected with first connecting plate 7, the outside fixedly connected with inclined web 15 of first connecting plate 7, the equal equidistant fixedly connected with second strengthening rib 6 in the left and right sides of inclined web 15, fixedly connected with third connecting plate 22 between the front and back side backup pad 9, when having strengthened inclined web 15 self intensity, make inclined web 15 more stable and firm, equal fixedly connected with second connecting plate 17 between the front and back upper backup pad 12, the bottom fixedly connected with mount pad 4 of spandrel post 21, the bottom fixedly connected with bottom support plate 16 of mount pad 4, form the support between upper backup pad 12 and bottom support plate 16, be convenient for concentrate the pressure on bottom plate 1, the top middle part fixedly connected with middleweb 19 of bottom plate 1, the equal equidistant fixedly connected with longitudinal baffle 20 in front and back both ends of middleweb 19, the inside equidistant fixedly connected with diaphragm 18 of longitudinal baffle 20, the equal equidistant fixedly connected with first strengthening rib 5 in the bottom of bottom plate 1, the top fixedly connected with roof 13 of upper backup pad 12, stability when having improved, steel case roof beam bulk strength and stability, prevent the steel case roof beam bending or unexpected stress from appearing in hoisting.
Working principle: when the device is used, the bearing column 21 and the upper supporting plate 12 form a support for the top plate 13, the pressure borne by the top plate 13 is uniformly transmitted to the surface of the bottom plate 1 in a triangular shape through the first diagonal rod 2 and the second diagonal rod 3, the supporting rods 11 are fixedly connected between the upper supporting plate 12 and the lower supporting plate 16, the supporting rods 11 are used for supporting and fixing the top plate 13 and the bottom plate 1, the stability of the box girder is improved, the side supporting plates 9 are fixedly connected to the left side and the right side of the supporting rods 11, the upper supporting plate 12, the side supporting plates 9 and the supporting rods 11 form a right triangle, the stability of the device is further enhanced, the bottom of the bottom plate 1 is fixedly connected with the first reinforcing ribs 5 in equal intervals, the stress area is increased, the pressure is reduced, the overall strength and the stability of the steel box girder are enhanced, the local stress or unexpected bending of the steel box girder is prevented from being caused by hoisting, the supporting plates 10 are connected to the side supporting plates 9 through the third connecting plates 22 to form a support, the stability of the diagonal web 15 is improved, the right triangle is also formed between the side supporting plates 9, the side supporting plates 10 and the upper supporting plates 12, the second reinforcing ribs 6 are matched with the second reinforcing ribs 6 to support the diagonal web 15, the first reinforcing ribs 15 are further fixedly connected to the diagonal web plate 15 through the diagonal web plate 7, and the diagonal web plate 15 is prevented from being broken by the diagonal web plate 7, and the diagonal web 15 is simultaneously fixed by the diagonal plate 7.
The fixed connection is fixed through bolts, so that the assembly is convenient.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. An assembled bridge steel construction case roof beam, includes bottom plate (1), its characterized in that: the top end of the bottom plate (1) is fixedly connected with a lower supporting plate (16), the left side and the right side of the top end of the lower supporting plate (16) are fixedly connected with supporting rods (11), the top end of each supporting rod (11) is fixedly connected with an upper supporting plate (12), the left side and the right side of the bottom end of each upper supporting plate (12) are fixedly connected with a bearing column (21), the left side and the right side of each bearing column (21) are respectively fixedly connected with a first diagonal rod (2) and a second diagonal rod (3), the two ends of each bearing column are respectively fixedly connected with the two sides of the top end of the lower supporting plate (16), the outside fixedly connected with side backup pad (9) of bracing piece (11), side backup pad (9) bottom fixedly connected with inclined web (15), the equal apart from fixedly connected with L template (8) of both ends bottom side about inclined web (15), the inside fixedly connected with dead lever (14) of L template (8), upside fixedly connected with layer board (10) in the top of side backup pad (9), the bottom of upper end all fixedly connected with in layer board (10) at last backup pad (12).
2. A fabricated bridge steel structure box girder according to claim 1, wherein: the top of dead lever (14) all fixedly connected with first connecting plate (7), the outside fixedly connected with inclined web (15) of first connecting plate (7), the equal equidistance fixedly connected with second strengthening rib (6) in the left and right sides of inclined web (15).
3. A fabricated bridge steel structure box girder according to claim 1, wherein: a third connecting plate (22) is fixedly connected between the front side supporting plate (9) and the rear side supporting plate (9).
4. A fabricated bridge steel structure box girder according to claim 1, wherein: and a second connecting plate (17) is fixedly connected between the front upper supporting plate (12) and the rear upper supporting plate (12).
5. A fabricated bridge steel structure box girder according to claim 1, wherein: the bottom end fixedly connected with mount pad (4) of spandrel post (21), the bottom fixedly connected with bottom suspension fagging (16) of mount pad (4).
6. A fabricated bridge steel structure box girder according to claim 1, wherein: the middle part of the top end of the bottom plate (1) is fixedly connected with a middle web plate (19), longitudinal partition plates (20) are fixedly connected to the front end and the rear end of the middle web plate (19) at equal intervals, and transverse partition plates (18) are fixedly connected to the inner part of the longitudinal partition plates (20) at equal intervals.
7. A fabricated bridge steel structure box girder according to claim 1, wherein: the bottom of the bottom plate (1) is fixedly connected with first reinforcing ribs (5) at equal intervals.
8. A fabricated bridge steel structure box girder according to claim 1, wherein: the top end of the upper supporting plate (12) is fixedly connected with a top plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322657430.8U CN221052356U (en) | 2023-09-28 | 2023-09-28 | Assembled bridge steel structure box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322657430.8U CN221052356U (en) | 2023-09-28 | 2023-09-28 | Assembled bridge steel structure box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221052356U true CN221052356U (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322657430.8U Active CN221052356U (en) | 2023-09-28 | 2023-09-28 | Assembled bridge steel structure box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221052356U (en) |
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2023
- 2023-09-28 CN CN202322657430.8U patent/CN221052356U/en active Active
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