CN219195613U - Prestressed reinforced concrete combined continuous box girder bridge structure - Google Patents
Prestressed reinforced concrete combined continuous box girder bridge structure Download PDFInfo
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- CN219195613U CN219195613U CN202320047262.8U CN202320047262U CN219195613U CN 219195613 U CN219195613 U CN 219195613U CN 202320047262 U CN202320047262 U CN 202320047262U CN 219195613 U CN219195613 U CN 219195613U
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Abstract
The application discloses continuous box girder bridge structure of prestressing force steel and concrete combination relates to steel and concrete combination box girder technical field, improves and only adopts the mode of spot face welded to connect between the upper and lower both ends of wave form steel web and top steel sheet and the bottom steel sheet, and the holding strength of welding position is lower, leads to the not high problem of stability of wave form steel web, including top steel sheet, bottom steel sheet and two wave form steel webs of fixed mounting between top steel sheet and bottom steel sheet, the equal fixedly connected with supporting part in one side that top steel sheet and bottom steel sheet are close to wave form steel web, the tip of wave form steel web stretches into the connection slot and with supporting part fixed mounting, middle part fixed mounting between top steel sheet and the bottom steel sheet has the bracing piece, the middle part fixed mounting of bracing piece has two crossbred diagonal struts. According to the corrugated steel web, the structural strength of the connecting part of the corrugated steel web can be improved through the arrangement of the supporting part, and the stability of the corrugated steel web is improved.
Description
Technical Field
The application relates to the field of steel-concrete combined box girders, in particular to a prestressed steel-concrete combined continuous box girder bridge structure.
Background
The prestressed reinforced concrete combined continuous box girder bridge structure is a novel and high-efficiency bridge structure type, and is composed of a concrete top plate and a concrete bottom plate, a corrugated steel web, external and internal prestressed steel bars and the like.
The prior Chinese patent with publication number of CN103422616B discloses a corrugated steel web steel-concrete combined structure continuous box girder, which comprises two or more corrugated steel webs, a top steel plate, a bottom steel plate and concrete, wherein the corrugated steel web is arranged between the top steel plate and the bottom steel plate, the top steel plate is connected with the corrugated steel web through welding, the corrugated steel web is connected with the bottom steel plate through welding, the surface roughness of the top steel plate and the bottom steel plate is 70-350 mu m, the single girder body structures are connected through one or more than one of the connecting ends or steel ropes in a combined way to form a continuous girder structure, and the top steel plate or the bottom steel plate is combined with the concrete to form a concrete combined structure.
With respect to the related art as described above, the inventors found that there are at least the following problems in this technology: the upper and lower ends of the corrugated steel web are connected with the top steel plate and the bottom steel plate only in a spot-face welding mode, and the supporting strength of the welding part is low, so that the stability of the corrugated steel web is low.
Disclosure of Invention
In order to improve the problem that the stability of the corrugated steel web is not high because the upper end and the lower end of the corrugated steel web are connected with the top steel plate and the bottom steel plate only in a spot-face welding mode and the supporting strength of welding parts is low, the application provides a prestress steel-concrete combined continuous box girder bridge structure.
The application provides a prestressed reinforced concrete combined continuous box girder bridge structure, which adopts the following technical scheme:
the utility model provides a continuous box girder bridge structure of prestressing force steel-concrete combination, includes top steel sheet, bottom steel sheet and two wave form steel webs of fixed mounting between top steel sheet and bottom steel sheet, top steel sheet and bottom steel sheet are close to the equal fixedly connected with supporting part of one side of wave form steel web, connecting slot that extends to in top steel sheet and the bottom steel sheet has been seted up at the middle part of supporting part, the tip of wave form steel web stretches into connecting slot and with supporting part fixed mounting;
the middle part fixed mounting between top steel sheet and the bottom steel sheet has the bracing piece, the middle part fixed mounting of bracing piece has two bracing of alternately arranging, the both ends of bracing respectively with two wave form steel web fixed mounting.
By adopting the technical scheme, when the corrugated steel web is installed, the end part of the corrugated steel web is inserted into the connecting slot along the supporting part, and then the corrugated steel web is fixed with the supporting part, so that the supporting part supports the end part of the corrugated steel web, the stress area of the end part of the corrugated steel web is increased, the structural strength of the joint of the corrugated steel web, the top steel plate and the bottom steel plate can be improved, and the stability of the corrugated steel web is improved; through the cooperation of bracing piece and two bracing, can form cross bracing structure between two wave form steel webs, carry out the connection support to two wave form steel webs to can further improve the stability of two wave form steel webs.
Optionally, a first bolt is inserted at one side of the supporting part, and the supporting part and the corrugated steel web are fixedly installed through the first bolt.
By adopting the technical scheme, the supporting part and the corrugated steel web can be installed and fixed.
Optionally, the reinforcing ribs are fixedly connected with the top steel plate and the bottom steel plate on both sides of the supporting portion.
By adopting the technical scheme, the reinforcing rib can play a reinforcing role on the supporting part.
Optionally, the both ends of bracing piece have all pegged graft second bolt, the both ends of bracing piece pass through second bolt fixed mounting with top steel sheet and bottom steel sheet.
By adopting the technical scheme, the supporting rod, the top steel plate and the bottom steel plate can be installed and fixed.
Optionally, a third bolt is inserted in the middle of the supporting rod, and the supporting rod and the two diagonal braces are fixedly installed through the third bolt.
By adopting the technical scheme, the supporting rod and the two diagonal braces can be installed and fixed.
Optionally, two one sides that the corrugated steel web is close to each other are all fixedly connected with two connecting blocks, peg graft in one side of connecting block has the fourth bolt, connecting block and bracing pass through fourth bolt fixed mounting.
By adopting the technical scheme, the diagonal bracing and the corrugated steel web can be installed and fixed.
Optionally, the top fixedly connected with concrete slab of top steel sheet, the inside of concrete slab is fixed to wear to be equipped with a plurality of main muscle.
Through adopting above-mentioned technical scheme, can improve the bearing effect of case roof beam through concrete slab.
Optionally, a plurality of prestressing force stranded wires are fixedly arranged in the concrete slab in a penetrating mode.
By adopting the technical scheme, the prestress can be applied to the concrete slab through the prestress stranded wires, and the fatigue resistance of the concrete slab is improved.
In summary, the present application has the following beneficial effects:
1. according to the corrugated steel web, the supporting parts are arranged to support the end parts of the corrugated steel web, so that the stress area of the end parts of the corrugated steel web is increased, the structural strength of the joint of the corrugated steel web, the top steel plate and the bottom steel plate can be improved, and the stability of the corrugated steel web is improved;
2. this application can form alternately bearing structure between two wave form steel webs through the cooperation of bracing piece and two bracing to carry out the connection support to two wave form steel webs, thereby can further improve the stability of two wave form steel webs.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is a schematic view of a front sectional structure of the present application.
Fig. 3 is a schematic view of the structure of the support bar and diagonal brace of the present application.
Reference numerals illustrate:
1. a top steel plate; 2. a bottom steel plate; 3. a corrugated steel web; 4. a support part; 5. a connection slot; 6. a support rod; 7. diagonal bracing; 8. a first bolt; 9. reinforcing ribs; 10. a second bolt; 11. a third bolt; 12. a connecting block; 13. a fourth bolt; 14. a concrete slab; 15. a main rib; 16. prestress wire.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
Referring to fig. 1-2, a prestressed reinforced concrete combined continuous box girder bridge structure comprises a top steel plate 1, a bottom steel plate 2 and two corrugated steel webs 3 fixedly installed between the top steel plate 1 and the bottom steel plate 2, wherein supporting parts 4 are fixedly connected to one sides of the top steel plate 1 and the bottom steel plate 2, which are close to the corrugated steel webs 3, connecting slots 5 extending into the top steel plate 1 and the bottom steel plate 2 are formed in the middle of the supporting parts 4, the end parts of the corrugated steel webs 3 extend into the connecting slots 5 and are fixedly installed with the supporting parts 4, first bolts 8 are inserted into one sides of the supporting parts 4, and the supporting parts 4 and the corrugated steel webs 3 are fixedly installed through the first bolts 8. When the corrugated steel web 3 is installed, the end part of the corrugated steel web 3 is inserted into the connecting slot 5 along the supporting part 4, the corrugated steel web 3 is fixed with the supporting part 4 by using the first bolt 8, the supporting part 4 supports the end part of the corrugated steel web 3, the stress area of the end part of the corrugated steel web 3 is increased, and therefore the structural strength of the joint of the corrugated steel web 3 and the top steel plate 1 and the bottom steel plate 2 can be improved, and the stability of the corrugated steel web 3 is improved.
Wherein, both sides of supporting part 4 and top steel sheet 1 and bottom steel sheet 2 all fixedly connected with stiffening rib 9, stiffening rib 9 can play the reinforcing effect to supporting part 4.
Referring to fig. 2 and 3, a supporting rod 6 is fixedly installed in the middle between the top steel plate 1 and the bottom steel plate 2, second bolts 10 are inserted into two ends of the supporting rod 6, two ends of the supporting rod 6 are fixedly installed with the top steel plate 1 and the bottom steel plate 2 through the second bolts 10, and a further supporting effect can be achieved between the top steel plate 1 and the bottom steel plate 2 through the supporting rod 6.
Referring to fig. 2 and 3, two cross-arranged diagonal braces 7 are fixedly installed in the middle of the supporting rod 6, a third bolt 11 is inserted in the middle of the supporting rod 6, the supporting rod 6 and the two diagonal braces 7 are fixedly installed through the third bolt 11, two ends of the diagonal braces 7 are fixedly installed with two corrugated steel webs 3 respectively, two connecting blocks 12 are fixedly connected to one sides, close to each other, of the two corrugated steel webs 3, a fourth bolt 13 is inserted in one side of each connecting block 12, the connecting blocks 12 and the diagonal braces 7 are fixedly installed through the fourth bolt 13, a cross supporting structure can be formed between the two corrugated steel webs 3 through cooperation of the supporting rod 6 and the two diagonal braces 7, the two corrugated steel webs 3 are connected and supported, and therefore stability of the two corrugated steel webs 3 can be further improved.
Referring to fig. 1 and 2, a concrete slab 14 is fixedly connected to the top of the top steel plate 1, a plurality of main ribs 15 are fixedly penetrated into the concrete slab 14, the load bearing effect of the box girder can be improved through the concrete slab 14, a plurality of prestress stranded wires 16 are fixedly penetrated into the concrete slab 14, prestress can be applied to the concrete slab 14 through the prestress stranded wires 16, and the fatigue resistance of the concrete slab 14 is improved.
The implementation principle of the application is as follows: when the corrugated steel web 3 is installed, the end part of the corrugated steel web 3 is inserted into the connecting slot 5 along the supporting part 4, then the corrugated steel web 3 is fixed with the supporting part 4 by using the first bolt 8, so that the supporting part 4 supports the end part of the corrugated steel web 3, the stress area of the end part of the corrugated steel web 3 is increased, the structural strength of the joint of the corrugated steel web 3 and the top steel plate 1 and the bottom steel plate 2 can be improved, and the stability of the corrugated steel web 3 is improved; through the cooperation of bracing piece 6 and two bracing 7, can form alternately bearing structure between two wave form steel web 3, carry out the connection support to two wave form steel web 3 to can further improve the stability of two wave form steel web 3.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a continuous box girder bridge structure of prestressing force steel-concrete combination, includes top steel sheet (1), bottom steel sheet (2) and two wave form steel web (3) of fixed mounting between top steel sheet (1) and bottom steel sheet (2), its characterized in that: the connecting slots (5) extending into the top steel plate (1) and the bottom steel plate (2) are formed in the middle of the supporting part (4), and the end parts of the corrugated steel web (3) extend into the connecting slots (5) and are fixedly installed with the supporting part (4);
the middle part fixed mounting between top steel sheet (1) and bottom steel sheet (2) has bracing piece (6), the middle part fixed mounting of bracing piece (6) has two bracing pieces (7) of alternately arranging, the both ends of bracing piece (7) respectively with two wave form steel web (3) fixed mounting.
2. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: one side of the supporting part (4) is inserted with a first bolt (8), and the supporting part (4) and the corrugated steel web (3) are fixedly installed through the first bolt (8).
3. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: both sides of the supporting part (4) are fixedly connected with reinforcing ribs (9) together with the top steel plate (1) and the bottom steel plate (2).
4. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: the two ends of the supporting rod (6) are respectively inserted with a second bolt (10), and the two ends of the supporting rod (6) are fixedly installed with the top steel plate (1) and the bottom steel plate (2) through the second bolts (10).
5. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: the middle part of bracing piece (6) has pegged graft third bolt (11), bracing piece (6) and two bracing (7) pass through third bolt (11) fixed mounting.
6. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: two connecting blocks (12) are fixedly connected to one sides, close to each other, of the two corrugated steel webs (3), a fourth bolt (13) is inserted into one side of each connecting block (12), and the connecting blocks (12) and the diagonal braces (7) are fixedly installed through the fourth bolt (13).
7. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 1, wherein: the top of the top steel plate (1) is fixedly connected with a concrete plate (14), and a plurality of main ribs (15) are fixedly arranged in the concrete plate (14) in a penetrating mode.
8. The prestressed reinforced concrete composite continuous box girder bridge structure of claim 7, wherein: a plurality of prestress stranded wires (16) are fixedly arranged in the concrete slab (14) in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320047262.8U CN219195613U (en) | 2023-01-05 | 2023-01-05 | Prestressed reinforced concrete combined continuous box girder bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320047262.8U CN219195613U (en) | 2023-01-05 | 2023-01-05 | Prestressed reinforced concrete combined continuous box girder bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN219195613U true CN219195613U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320047262.8U Active CN219195613U (en) | 2023-01-05 | 2023-01-05 | Prestressed reinforced concrete combined continuous box girder bridge structure |
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| CN (1) | CN219195613U (en) |
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2023
- 2023-01-05 CN CN202320047262.8U patent/CN219195613U/en active Active
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