CN218779341U - Limiting device for wet joint connecting steel bars of prefabricated box girder top plate - Google Patents
Limiting device for wet joint connecting steel bars of prefabricated box girder top plate Download PDFInfo
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- CN218779341U CN218779341U CN202223471020.6U CN202223471020U CN218779341U CN 218779341 U CN218779341 U CN 218779341U CN 202223471020 U CN202223471020 U CN 202223471020U CN 218779341 U CN218779341 U CN 218779341U
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Abstract
The utility model discloses a limiting device for connecting reinforcing steel bars of wet joints of a prefabricated box girder top plate, which comprises a rectangular steel pipe, wherein positioning steel plates for clamping the reinforcing steel bars are sequentially arranged along the length direction of the rectangular steel pipe, and a plurality of positioning steel plates are parallel to each other and are positioned on the same plane; and the top end of the positioning steel plate is also provided with a bolt, and the bolt penetrates through the positioning steel plate to enable the positioning steel plate to be abutted against the rectangular steel pipe. The utility model discloses two adjacent positioning steel plates play a centre gripping fixed action to the connecting reinforcement of case roof board wet joint department, prevent that the reinforcing bar from taking place lateral deformation, distortion and aversion because of the atress inequality or collision in the process of hoist and mount, the workman need not to use the drill rod to adjust to the reinforcing bar of deformation and break off with the fingers and thumb after putting into the hydraulic pressure centre form again, has improved work efficiency greatly, has improved the acceptance pass percentage of reinforcing bar simultaneously; simultaneously, the distance between the positioning steel plates can be adjusted according to the arrangement distance of the connecting reinforcing steel bars and the diameter specification of the reinforcing steel bars, and the flexible use of the reinforcing steel bars under different design requirements can be met.
Description
Technical Field
The utility model relates to a construction technical field especially relates to a stop device of wet seam joint reinforcing bar of prefabricated box girder roof.
Background
At present, in the bridge construction process, a construction method is commonly adopted, wherein concrete box girders are adopted to be prefabricated in a girder yard in blocks, then the box girders are continuously spliced, the box girders are connected into a whole by adopting cast-in-place concrete, the joint between the left and right adjacent box girders is called as a wet joint, and in the prefabricating process, connecting steel bars at the wet joint are required to be reserved. The case roof beam reinforcing bar adopts the unloading of numerical control bender usually, carries out the framework of steel reinforcement ligature in the mould, nevertheless to prefabricated assembled case roof beam, because of its roof flange board width is great, end web and roof reinforcing bar often are difficult to whole ligature, consequently ligature end web framework of steel reinforcement on the bed-jig during daily implementation, ligature roof reinforcing bar on the bed-jig in addition, then hoist the roof reinforcing bar that the ligature was accomplished to end web framework of steel reinforcement cage on, hoist in unison to the hydraulic pressure centre form at last. In the hoisting process, the connecting steel bars needed to be reserved at the wet joint of the top plate are deformed, twisted and shifted easily due to uneven stress or collision, so that the transverse intervals of the connecting steel bars are unequal. As shown in fig. 4, hydraulic pressure centre form top is equipped with the broach baffle for reserve the connecting reinforcement, and the tooth's socket interval of broach baffle is fixed, if when the connecting reinforcement takes place lateral shifting and warp or distortion, will not with the tooth's socket one-to-one on the broach baffle, influence whole steel reinforcement cage and put into hydraulic pressure centre form, need the workman adopt the drill rod to break it off with the fingers and thumb just can put into the template in, wasted a large amount of manpowers and time, and influence the shaping quality of reinforcing bar.
Disclosure of Invention
To the above problem, the utility model aims to provide a stop device of wet seam joint steel bar of prefabricated box girder roof to solve the technical problem that the wet seam crossing joint steel bar of above-mentioned roof takes place lateral deformation, distortion and aversion at hoist and mount in-process.
The utility model discloses a following technical scheme realizes:
a limiting device for connecting reinforcing steel bars with wet joints of a top plate of a prefabricated box girder comprises a rectangular steel pipe, positioning steel plates for clamping the reinforcing steel bars are sequentially arranged along the length direction of the rectangular steel pipe, and the positioning steel plates are parallel to each other and are positioned on the same plane; and the top end of the positioning steel plate is also provided with a bolt, and the bolt penetrates through the positioning steel plate to enable the positioning steel plate to be abutted against the rectangular steel pipe.
Further, it is a plurality of the rectangle steel pipe is from last to keeping equidistant distribution of certain interval ground down, and be parallel to each other rectangle steel pipe both ends are equipped with steel connection plate, steel connection plate passes through screw and a plurality of rectangle steel pipe butt. The connecting steel plate can also be directly welded with the rectangular steel pipe to form a whole. A plurality of the rectangle steel pipe is from last to equidistant distribution down, and the location steel sheet all passes through the bolt fastening with each rectangle steel pipe, forms a plurality of fixed points, makes whole structure more firm, improves life.
Furthermore, the gaps between the bolts and the rectangular steel pipes are located on the same horizontal plane, and the diameters of the bolts are smaller than those of the gaps between the rectangular steel pipes. There may be a difference in the specification of the reinforcing bars used and the arrangement interval of the reinforcing bars due to design requirements. When the bolt and the clearance between the rectangular steel pipes are in the same horizontal plane, the bolt penetrates through the positioning steel plate and then is positioned in the clearance between the rectangular steel pipes, the bolt is similar to a sliding groove, the bolt can freely slide in the clearance, the positioning steel plate is driven to move, and the bolt can be flexibly adjusted and used in the face of different steel bar diameters or different steel bar arrangement intervals.
Furthermore, the bottom end of the positioning steel plate is also provided with a locking piece.
Preferably, the locking piece is a fastening screw, screw holes are further formed in the bottom ends of the positioning steel plates, and the fastening screw penetrates through the screw holes in the two adjacent positioning steel plates in sequence and then is fixed through a fixing nut.
Further, the thickness of the positioning steel plate is 4mm to 15mm.
Preferably, the thickness of the positioning steel plate is 5mm.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses a length direction at the rectangle steel pipe sets gradually a plurality of positioning steel plates, and two adjacent positioning steel plates play a centre gripping fixed action to the connecting reinforcement of case roof beam roof board wet joint department, prevent that the reinforcing bar from taking place lateral deformation, distortion and aversion in the in-process of hoist and mount, and the workman need not to use the drill rod to adjust to the reinforcing bar that warp and puts into the hydraulic pressure centre form after just off with the fingers and thumb, has improved work efficiency greatly, has improved the acceptance pass rate of reinforcing bar simultaneously;
2. the utility model can adjust the space between the positioning steel plates according to the arrangement space of the connecting steel bars and the diameter specification of the steel bars, and can meet the flexible use of the steel bars under different design requirements;
3. the utility model discloses simple structure, it is nimble convenient to use, and the material all adopts firm steel, long service life, and reuse rate is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a front view of embodiment 1;
FIG. 2 is a front view of embodiment 2;
FIG. 3 is a side sectional view of embodiment 2;
fig. 4 is a schematic cross-sectional view of a hydraulic inner die of a precast box girder.
The reference numerals denote: the method comprises the following steps of 1-rectangular steel pipe, 2-bolt, 3-positioning steel plate, 4-connecting steel bar, 5-connecting steel plate, 6-screw, 7-screw, 8-fixing nut, 9-comb baffle and 10-tooth groove.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention. It should be noted that the present invention is already in practical development and use stage.
The present invention will be described in further detail with reference to examples.
Example 1
As shown in fig. 1, the utility model provides a limiting device for connecting reinforcing steel bars in wet joints of precast box girder top plates, which comprises a rectangular steel pipe 1, wherein positioning steel plates 3 for clamping the reinforcing steel bars are sequentially arranged along the length direction of the rectangular steel pipe 1, and a plurality of positioning steel plates 3 are parallel to each other and are positioned on the same plane; the top end of the positioning steel plate 3 is also provided with a bolt 2, and the bolt 2 penetrates through the positioning steel plate 3 to be abutted against the rectangular steel pipe 1.
The utility model discloses a set gradually the positioning steel plate 3 that is used for the clamping reinforcing bar along 1 length direction of rectangle steel pipe, fix on rectangle steel pipe 1 through bolt 2 on 3 tops of positioning steel plate, it is a plurality of positioning steel plate 3 is parallel to each other and is in the coplanar, and per two positioning steel plate 3 are a set of, and the bottom extends 1 certain distance formation exposed core of rectangle steel pipe, and the restriction reinforcing bar sideslip is controlled at hoist and mount in-process, plays the effect of fixed reinforcing bar. According to the row number of the connecting steel bars 4, the number of the positioning steel plates 3 can be freely increased or reduced, and the use is flexible. When the box girder is prefabricated in a beam yard, because the top plate flange plate of the box girder is wide, the top plate steel bars of the box girder cannot be integrally bound with the bottom web plate steel bars, and the top plate steel bars are usually bound and then hoisted to the bottom web plate steel bar cage, and then are integrally hoisted to the hydraulic internal mold. In the hoisting process, the connecting steel bars 4 which need to be reserved at the wet joint of the top plate are easy to deform, distort and transversely shift due to uneven stress or collision; as shown in fig. 4, the top of the hydraulic internal mold is provided with the comb baffle 9 for reserving the connecting steel bars 4, and the distance between the tooth grooves 10 of the comb baffle 9 is fixed, if the connecting steel bars 4 are deformed by lateral displacement or twisted, the connecting steel bars cannot correspond to the tooth grooves 10 on the comb baffle 9 one by one, which affects the whole steel bar cage to be placed in the hydraulic internal mold, and the connecting steel bars 4 which are deformed by a worker are required to be placed after being broken off one by the steel rod, especially when the diameter of the steel bars is large and the deformation and the displacement are serious, a large amount of manpower and time are wasted, and the forming quality of the steel bars is also affected. The utility model discloses when using, need install wet seam joint reinforcing bar 4 departments before the hoist and mount reinforcing bar, here reinforcing bar lateral shifting when preventing to hoist and mount.
Example 2
As shown in fig. 2 to 3, the present embodiment is an improvement on embodiment 1. A limiting device for connecting steel bars in wet joints of a top plate of a prefabricated box girder comprises a rectangular steel pipe 1, wherein positioning steel plates 3 used for clamping the steel bars are sequentially arranged along the length direction of the rectangular steel pipe 1, and the plurality of positioning steel plates 3 are parallel to each other and are positioned on the same plane; and the top end of the positioning steel plate 3 is also provided with a bolt 2, and the bolt 2 penetrates through the positioning steel plate 3 to be abutted against the rectangular steel pipe 1. Further, it is a plurality of rectangle steel pipe 1 is from last to keeping certain interval ground equidistance to distributing down, and be parallel to each other, leaves certain clearance between the adjacent rectangle steel pipe 1 from top to bottom 1 both ends of rectangle steel pipe are equipped with connecting steel plate 5, connecting steel plate 5 passes through screw 6 and 1 butt of a plurality of rectangle steel pipes. The connecting steel plate 5 can also be directly welded with the rectangular steel pipe 1 to form a whole. The positioning steel plate 3 and each rectangular steel pipe 1 are fixed through the bolts 2 to form a plurality of fixing points, so that the whole structure is firmer, and the service life is prolonged.
Furthermore, the gap between the bolt 2 and the rectangular steel tube 1 is in the same horizontal plane, and the diameter of the bolt 2 is smaller than the gap between the rectangular steel tubes 1. There may be a difference in the specification of the reinforcing bars used and the arrangement interval of the reinforcing bars due to design requirements. When the bolt 2 with clearance between the rectangle steel pipe 1 is in same horizontal plane, in the clearance between the rectangle steel pipe 1 was in behind the bolt 2 run through the location steel sheet 3, was similar to the spout, made the bolt 2 can freely slide in the clearance, drive the location steel sheet 3 simultaneously and also can remove, when the condition to different bar diameters or reinforcing bar interval of arranging is different, adopted nut and bolt 2 cooperation to fix it at the back after adjusting the position of location steel sheet 3.
Further, the bottom end of the positioning steel plate 3 is also provided with a locking piece. The utility model discloses in the use, because the reinforcing bar has the trend of deformation, aversion when hoist and mount, can produce horizontal extrusion force to both sides positioning steel plate 3, during the great steel reinforcement cage of hoist and mount diameter of reinforcement, perhaps through long-time use back, positioning steel plate 3's bottom is used for the exposed core of centre gripping reinforcing bar to warp easily, can not play the clamping action to the reinforcing bar finally. Through setting up the retaining member, play drawknot, fixed action to 3 exposed core of two location steel sheets, make 3 exposed core of location steel sheet keep centre gripping limiting displacement to the reinforcing bar all the time. Retaining member aim at plays drawknot, fixed action to two 3 exposed core of location steel sheet that play the centre gripping reinforcing bar, can be fastener, square clamp or to existing means such as drawing the screw rod.
Preferably, the retaining member is a fastening screw 7, the bottom end of each positioning steel plate 3 is further provided with a screw hole, and the fastening screw 7 penetrates through the screw holes in the two adjacent positioning steel plates 3 in sequence and then is fixed through a fixing nut 8. Because the clamping ends at the bottom ends of the two positioning steel plates 3 are in an open state, clamped steel bars may slip off in the hoisting process to cause partial failure of the device, and the screw rods 7 penetrate through screw holes at the bottom ends of the adjacent positioning steel plates 3 to enable the clamping ends to be in a closed state from the open state. The structure can further prevent the problem that the steel bar slips from the bottom end in the hoisting process.
Further, the thickness of the positioning steel plate 3 is 4mm to 15mm. The steel plate in this thickness range has sufficient rigidity and strength to restrict deformation and displacement of the connecting bars.
Preferably, the thickness of the positioning steel plate 3 is 5mm. The positioning steel plate 3, preferably 5mm thick, can ensure sufficient rigidity and strength while effectively controlling the material cost.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a stop device of wet seam joint steel bar of prefabricated box girder roof, its characterized in that: the steel bar clamping device comprises a rectangular steel pipe (1), wherein positioning steel plates (3) used for clamping steel bars are sequentially arranged along the length direction of the rectangular steel pipe (1), and the positioning steel plates (3) are parallel to each other and are positioned on the same plane; still be equipped with bolt (2) on the top of location steel sheet (3), bolt (2) run through location steel sheet (3) and make it and rectangle steel pipe (1) butt.
2. The limiting device for the wet joint connecting steel bars of the top plate of the precast box girder according to claim 1, wherein: a plurality of rectangle steel pipe (1) is from last to keeping equidistant distribution of a determining deviation ground down, and be parallel to each other rectangle steel pipe (1) both ends are equipped with connecting plate (5), connecting plate (5) are through screw (6) and a plurality of rectangle steel pipe (1) butt.
3. The limiting device for the wet joint connecting steel bars of the top plate of the precast box girder according to claim 2, wherein: the bolt (2) and the clearance between the rectangular steel pipes (1) are positioned on the same horizontal plane, and the diameter of the bolt (2) is smaller than that of the clearance between the rectangular steel pipes (1).
4. The device for limiting the wet joint connecting steel bar of the top plate of the precast box girder according to any one of claims 1 to 3, wherein: the bottom end of the positioning steel plate (3) is also provided with a locking piece.
5. The limiting device for the wet joint connecting steel bars of the top plate of the precast box girder according to claim 4, wherein: the retaining member is fastening screw (7) the bottom of location steel sheet (3) still is equipped with the screw, fastening screw (7) are fixed through fixation nut (8) after running through the screw on two adjacent location steel sheets (3) in proper order.
6. The limiting device for the wet joint connecting steel bars of the top plate of the precast box girder according to claim 1, wherein: the thickness of the positioning steel plate (3) is 4mm to 15mm.
7. The limiting device for the wet joint connecting steel bars of the top plate of the precast box girder according to claim 6, wherein: the thickness of the positioning steel plate (3) is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223471020.6U CN218779341U (en) | 2022-12-26 | 2022-12-26 | Limiting device for wet joint connecting steel bars of prefabricated box girder top plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223471020.6U CN218779341U (en) | 2022-12-26 | 2022-12-26 | Limiting device for wet joint connecting steel bars of prefabricated box girder top plate |
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| Publication Number | Publication Date |
|---|---|
| CN218779341U true CN218779341U (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223471020.6U Active CN218779341U (en) | 2022-12-26 | 2022-12-26 | Limiting device for wet joint connecting steel bars of prefabricated box girder top plate |
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| CN (1) | CN218779341U (en) |
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- 2022-12-26 CN CN202223471020.6U patent/CN218779341U/en active Active
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