CN220538423U - Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction - Google Patents

Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction Download PDF

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Publication number
CN220538423U
CN220538423U CN202321952061.9U CN202321952061U CN220538423U CN 220538423 U CN220538423 U CN 220538423U CN 202321952061 U CN202321952061 U CN 202321952061U CN 220538423 U CN220538423 U CN 220538423U
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box girder
steel bars
transverse
reinforcing
steel bar
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CN202321952061.9U
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余畅
程苏娟
尹明磊
官灿
刘媛媛
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CSCEC Strait Construction and Development Co Ltd
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CSCEC Strait Construction and Development Co Ltd
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Abstract

The utility model discloses a reinforcing steel bar reinforcing structure for cast-in-situ box girder construction, which belongs to the technical field of cast-in-situ box girder construction and comprises a box girder body, wherein two fixing brackets are arranged at the bottom of the box girder body, mounting grooves are formed in the outer walls of the two fixing brackets which are opposite to each other, a plurality of transverse reinforcing steel bars are arranged between the two mounting grooves, through grooves are formed in the bottom surfaces of the fixing brackets, the through grooves are communicated with the mounting grooves, transverse fixing plates are inserted into the through grooves, a plurality of mounting blocks are arranged on the top surfaces of the transverse fixing plates and in the mounting grooves, the transverse reinforcing steel bars can be stably clamped in the mounting grooves, the distance between the transverse reinforcing steel bars is uniform, the mounting of the transverse reinforcing steel bars is labor-saving, the mounting efficiency is improved, the mounting of longitudinal reinforcing steel bars is convenient and quick, a reinforcing steel bar net formed by the longitudinal reinforcing steel bars is firm, and the quality and strength of the box girder construction are guaranteed.

Description

Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction
Technical Field
The utility model relates to the technical field of cast-in-situ box girder construction, in particular to a reinforcing steel bar reinforcing structure for cast-in-situ box girder construction.
Background
The cast-in-situ box girder is a girder structure cast-in-situ on a construction site and has the advantages of simple structure, convenient construction and the like. However, because the structure is special and is easily influenced by external force, reinforcing steel bars are needed to be reinforced so as to improve the bearing capacity and the anti-seismic performance; at present, common box girder reinforcement modes comprise inner reinforcement and outer reinforcement; the internal reinforcement is to arrange a certain number and specification of steel bars inside the box girder, and the bending bearing capacity and the shearing resistance of the box girder are improved through reasonable design of arrangement positions and numbers; the external reinforcement is to arrange a certain number and specification of steel bars outside the box girder, and the bending bearing capacity and the shearing resistance of the box girder are improved through reasonable design of arrangement positions and numbers;
at present, when arranging the reinforcing steel bars, the crossing of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars is bound by iron wires, the binding is manually carried out, time and labor are wasted, the labor intensity is increased, the spacing between the transverse reinforcing steel bars and the longitudinal reinforcing steel bars is not uniform in the binding process, and small deviation can occur, so that the quality and the strength of the whole cast-in-situ box girder steel can be influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide the reinforcing structure for the cast-in-situ box girder construction, which can realize that transverse reinforcing steel bars are stably clamped in an installation groove, so that the distance between the transverse reinforcing steel bars is uniform, the installation of the transverse reinforcing steel bars is labor-saving, the installation of longitudinal reinforcing steel bars and transverse reinforcing steel bars is convenient and quick, the installation efficiency is improved, the formed reinforcing steel bar net is firm, the quality is good, and the construction quality and strength of the box girder are ensured.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a reinforcing steel bar reinforcing structure for cast-in-situ box girder construction, which comprises fixing brackets arranged on two sides of the bottom of a box girder body, wherein mounting grooves are formed in the opposite outer walls of the fixing brackets, a plurality of transverse reinforcing steel bars are arranged between the two mounting grooves, through grooves are formed in the bottom surface of the fixing brackets, the through grooves are communicated with the mounting grooves, transverse fixing plates are inserted into the through grooves, a plurality of mounting blocks positioned in the mounting grooves are arranged on the top surface of the transverse fixing plates, limit grooves are formed in the top ends of the mounting blocks corresponding to the transverse reinforcing steel bars, two ends of the transverse reinforcing steel bars are respectively positioned in the two limit grooves corresponding to the two ends of the transverse reinforcing steel bars, a plurality of inserting rings are arranged on the bottom of the transverse reinforcing steel bars, and longitudinal reinforcing steel bars are inserted into the inserting rings in a plurality of longitudinal arrangement.
The utility model has the preferable technical scheme that the two sides of the transverse fixing plate and the outside of the through groove are provided with fixing lugs, and the fixing lugs are connected with the fixing support through bolts.
The preferable technical scheme of the utility model is that a limiting block is fixed on one end of the longitudinal steel bar, a longitudinal fixing plate is arranged on one end of the bottom of the box girder body, a through hole is formed in the outer wall of the longitudinal fixing plate in a penetrating manner, and a nut is connected in the other end of the longitudinal steel bar in a penetrating manner through the through hole.
The preferable technical scheme of the utility model is that the transverse steel bars and the longitudinal steel bars are mutually perpendicular.
The preferable technical scheme of the utility model is that the plug-in ring and the transverse steel bar are fixed by welding.
The box girder body is characterized in that the bottom of the box girder body is provided with a concrete filling layer corresponding to the crisscrossed transverse steel bars and the crisscrossed longitudinal steel bars, and the transverse steel bars and the crisscrossed longitudinal steel bars are positioned in the concrete filling layer.
The beneficial effects of the utility model are as follows:
according to the reinforcing structure for the cast-in-situ box girder construction, the transverse reinforcing steel bars can be stably clamped in the mounting grooves through the transverse fixing plates, the mounting blocks and the limiting grooves, the distance between the transverse reinforcing steel bars is uniform, the mounting of the transverse reinforcing steel bars is labor-saving, the mounting efficiency is improved, the arranged inserting rings, the longitudinal reinforcing steel bars, the longitudinal fixing plates and the through holes are convenient and quick to mount the longitudinal reinforcing steel bars, the longitudinal reinforcing steel bars and the transverse reinforcing steel bars are vertically and alternately fixed, the formed reinforcing steel bar meshes are firm, the quality is good, and the construction quality and strength of the box girder are guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of a reinforcement structure for cast-in-situ box girder construction according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;
fig. 3 is a schematic structural view of a fixing bracket in a reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a transverse fixing plate in a reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to an embodiment of the present utility model;
in the figure:
1. a box girder body; 2. a fixed bracket; 3. a mounting groove; 4. a through groove; 5. transverse steel bars; 6. a transverse fixing plate; 7. a mounting block; 8. a limit groove; 9. a plug ring; 10. longitudinal steel bars; 11. a limiting block; 12. a longitudinal fixing plate; 13. a through hole; 14. a fixed ear; 15. and (5) a bolt.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-4, this embodiment provides a reinforcement structure for construction of a cast-in-situ box girder, which comprises two fixing brackets 2 arranged at the bottom of a box girder body 1, wherein mounting grooves 3 are formed on the opposite outer walls of the two fixing brackets 2, a plurality of transverse reinforcements 5 are arranged between the two mounting grooves 3, a through groove 4 is formed on the bottom surface of the fixing bracket 2, the through groove 4 is communicated with the mounting grooves 3, a transverse fixing plate 6 is inserted into the through groove 4, a plurality of mounting blocks 7 positioned in the mounting grooves 3 are arranged on the top surface of the transverse fixing plate 6, a limit groove 8 is formed on the top end of the mounting block 7 corresponding to the transverse reinforcements 5, two ends of the transverse reinforcements 5 are respectively positioned in the two limit grooves 8 corresponding to the two ends of the transverse reinforcements 5, the bottom of the transverse steel bar 5 is provided with a plurality of inserting rings 9, longitudinal steel bars 10 are inserted in the inserting rings 9 which are longitudinally arranged, the transverse steel bar 5 is placed between the mounting grooves 3 on the two fixing brackets 2, the transverse fixing plates 6 are inserted into the through grooves 4, the limiting grooves 8 on the mounting blocks 7 clamp the two ends of the transverse steel bar 5, the transverse steel bar 5 is limited and fixed, then one end of the longitudinal steel bar 10 sequentially passes through the inserting rings 9 on the transverse steel bars 5, the longitudinal steel bar 10 and the transverse steel bar 5 are vertically staggered, the structure is simple, the quick mounting of the longitudinal steel bar 10 and the transverse steel bar 5 is convenient, the time and the labor are saved, and the working efficiency is improved; the bottom of the box girder body 1 is provided with a concrete filling layer corresponding to the crisscrossed transverse steel bars 5 and the longitudinal steel bars 10, the transverse steel bars 5 and the longitudinal steel bars 10 are positioned in the concrete filling layer, the concrete filling layer is arranged on the bottom surface of the box girder, the construction is carried out in the space below the box girder during reinforcement, the construction space is not limited, the construction is convenient, and the construction period can be shortened; the fixing lugs 14 are arranged on the two sides of the transverse fixing plate 6 and outside the through groove 4, and the fixing lugs 14 are connected with the fixing support 2 through bolts 15, so that the transverse fixing plate 6 is stably fixed, and the fixing stability of the transverse reinforcing steel bars 5 is improved.
The box girder comprises a box girder body 1, wherein a longitudinal fixing plate 12 is arranged on one side of the bottom of the box girder body 1, a through hole 13 is formed in the outer wall of the longitudinal fixing plate 12, a limiting block 11 is fixed at one end of a longitudinal steel bar 10, a nut 16 is screwed in the other end of the longitudinal steel bar 10 and penetrates through the through hole 13, the longitudinal steel bar 10 is locked, installed and fixed through the nut 16 and the limiting block 11, installation is labor-saving, and fixation is stable.
The splicing ring 9 is welded and fixed with the transverse steel bars 5, so that the connection between the splicing ring 9 and the transverse steel bars 5 is relatively firm and fixed, and the stability and the firmness of the connection between the transverse steel bars 5 and the longitudinal steel bars 10 are improved.
When the concrete pouring box is used, the fixing support 2, the longitudinal fixing plates 12 and the bottom of the box girder body 1 are fixed, then the transverse steel bars 5 are placed into the mounting groove 3 between the two fixing supports 2, the transverse fixing plates 6 are inserted into the through groove 4, the limiting grooves 8 on the mounting blocks 7 are used for limiting and fixing the two ends of the transverse steel bars 5, the transverse steel bars 5 can be uniformly arranged, finally the transverse fixing plates 6 are fixed through bolts, one ends of the longitudinal steel bars 10 sequentially penetrate through the inserting rings 9 on the transverse steel bars 5, finally the longitudinal steel bars 10 are penetrated through holes 13 on the longitudinal fixing plates 12 and screwed with nuts, limiting and fixing the longitudinal steel bars 10, the transverse steel bars 5 and the longitudinal steel bars 10 can be vertically staggered to form a steel bar net, an external grouting mould is hoisted to a designated position by means of hoisting equipment, and the traditional upper portion hanging or lower scaffold grounding method is adopted for installing, and good concrete is poured according to the designed height of the concrete filling layer.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, and other embodiments are within the scope of the utility model as defined by the claims of the present application.

Claims (6)

1. A reinforcing steel bar reinforcing structure for cast-in-situ box girder construction is characterized in that:
including setting up fixed bolster (2) in the bottom both sides of case roof beam body (1), mounting groove (3) have been seted up on the outer wall that fixed bolster (2) are relative, two be provided with a plurality of horizontal reinforcing bars (5) between mounting groove (3), through groove (4) have been seted up on the bottom surface of fixed bolster (2), and through groove (4) and mounting groove (3) intercommunication, peg graft on the inside of through groove (4) have horizontal fixed plate (6), be provided with a plurality of installation piece (7) that are located mounting groove (3) on the top surface of horizontal fixed plate (6), limit groove (8) have been seted up corresponding horizontal reinforcing bar (5) on the top of installation piece (7), and the both ends of horizontal reinforcing bar (5) are located two that two tip corresponds of horizontal reinforcing bar (5) respectively in limit groove (8), be provided with a plurality of jack-up rings (9) on the bottom of horizontal reinforcing bar (5), peg graft in a plurality of jack-up rings (9) and have vertically arranged.
2. The reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to claim 1, wherein:
the two sides of the transverse fixing plate (6) are provided with fixing lugs (14) positioned outside the through grooves (4), and the fixing lugs (14) are connected with the fixing support (2) through bolts (15).
3. The reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to claim 1, wherein:
one end of the bottom of the box girder body (1) is provided with a longitudinal fixing plate (12), a through hole (13) is formed in the outer wall of the longitudinal fixing plate (12), a limiting block (11) is fixed at one end of the longitudinal steel bar (10), and a nut (16) is screwed in the other end of the longitudinal steel bar (10) and penetrates through the through hole (13).
4. The reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to claim 1, wherein:
the transverse steel bars (5) and the longitudinal steel bars (10) are mutually perpendicular.
5. The reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to claim 1, wherein:
the inserting ring (9) and the transverse steel bar (5) are welded and fixed.
6. The reinforcing steel bar reinforcing structure for cast-in-situ box girder construction according to claim 1, wherein:
the bottom of the box girder body (1) is provided with a concrete filling layer corresponding to the crisscrossed transverse steel bars (5) and the longitudinal steel bars (10), and the transverse steel bars (5) and the longitudinal steel bars (10) are positioned in the concrete filling layer.
CN202321952061.9U 2023-07-24 2023-07-24 Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction Active CN220538423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321952061.9U CN220538423U (en) 2023-07-24 2023-07-24 Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321952061.9U CN220538423U (en) 2023-07-24 2023-07-24 Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction

Publications (1)

Publication Number Publication Date
CN220538423U true CN220538423U (en) 2024-02-27

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ID=89969366

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321952061.9U Active CN220538423U (en) 2023-07-24 2023-07-24 Reinforcing steel bar reinforcing structure for cast-in-situ box girder construction

Country Status (1)

Country Link
CN (1) CN220538423U (en)

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