CN209890066U - Box girder bottom web reinforcing bar lifting device - Google Patents
Box girder bottom web reinforcing bar lifting device Download PDFInfo
- Publication number
- CN209890066U CN209890066U CN201920699783.5U CN201920699783U CN209890066U CN 209890066 U CN209890066 U CN 209890066U CN 201920699783 U CN201920699783 U CN 201920699783U CN 209890066 U CN209890066 U CN 209890066U
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- Prior art keywords
- cross beam
- hoisting
- chords
- box girder
- reinforcing bar
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 210000000481 breast Anatomy 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 12
- 238000010276 construction Methods 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000009415 formwork Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 108010068370 Glutens Proteins 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 235000021312 gluten Nutrition 0.000 description 1
- 238000011007 installation qualification Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of cast in situ concrete bridge frock, a box girder bottom web reinforcing bar lifting device is disclosed, including a plurality of parallel arrangement's hoist and mount unit, upper chord and lower chord fixed connection through parallel arrangement from top to bottom between a plurality of hoist and mount units, set up perpendicularly between upper chord, lower chord and the hoist and mount unit, the cross section of hoist and mount unit is isosceles trapezoid, and hoist and mount unit top surface still is equipped with a plurality of rings that lift by crane, the utility model has the advantages of simple structure, work is steady.
Description
Technical Field
The utility model belongs to the technical field of cast in situ concrete bridge frock, especially, relate to a box girder bottom web reinforcing bar lifting device.
Background
With the improvement of the mechanization degree of modern bridge construction and the requirements of energy conservation and emission reduction, in the construction of continuous cast-in-place concrete bridges in fields such as mudflats, canyons, urban viaducts, cross-river bridges, cross-sea bridges and the like, in order to accelerate the construction progress, the construction of a movable formwork is mostly adopted. The processing and installation of reinforcing steel bars are one of key processes for ensuring the quality and the progress of beam slabs, generally, a box girder framework reinforcing steel bar installing method is to draw scales on a template by using paint and lay the reinforcing steel bars along the scales, the construction process needs to wait for the installation of the reinforcing steel bars after the box girders are poured and the operations of tensioning, formwork walking, mold closing and mold adjusting are carried out, and the process flow tends to cause the phenomenon of work nesting caused by waiting; for effectively promoting the efficiency of construction, shorten construction period, through technical research, the ligature of the cast-in-place box girder steel reinforcement framework of moving die carrier adopts one set of box girder bottom web steel reinforcement segmental prefabrication assembly method: through preparation box girder framework of steel reinforcement ligature location bed-jig, adopt the mould location, wholly carry out the merogenesis ligature to end web framework of steel reinforcement, wait for stretch-draw and die carrier walking after the box girder is pour, the compound die, carry out the reinforcement during the accent mould, become parallel operation from the line production, reduce the nest worker phenomenon that waits for arousing, reach the purpose of accelerating the construction progress, and the end that the ligature is good, web framework of steel reinforcement takes place to warp and distort easily at the hoist transport to the moulding-bed in-process, hardly effectively guarantee box girder steel reinforcement installation qualification rate, and bring the hidden danger for construction safety and construction quality.
Disclosure of Invention
The utility model aims at providing a box breast web reinforcing bar lifting device can effectively ensure that cast-in-place box girder steel reinforcement framework does not take place to warp at the hoist and mount in-process and has guaranteed construction quality, increases construction safety, the steady safety of hoist and mount process.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a case web reinforcing bar lifting device, includes a plurality of parallel arrangement's hoist and mount unit, through upper chord and lower chord fixed connection of upper and lower parallel arrangement between a plurality of hoist and mount units, set up perpendicularly between upper chord, lower chord and the hoist and mount unit, the cross section of hoist and mount unit is isosceles trapezoid, and hoist and mount unit top surface still is equipped with a plurality of rings that lift by crane.
Furthermore, the hoisting unit comprises a first cross beam and a second cross beam which are arranged in parallel from top to bottom, the length of the first cross beam is smaller than that of the second cross beam, the first cross beam and the second cross beam are fixedly connected through a plurality of first supporting rods, the first supporting rods and the first cross beam are vertically arranged, the end parts of the first cross beam and the second cross beam are further provided with connecting waist beams, and the waist beams at the first cross beam, the second cross beam and the two end parts form an isosceles trapezoid hoisting unit.
Further, still be equipped with a plurality of down tube between first crossbeam and the second crossbeam, the upper chord is fixed to be welded in first crossbeam bottom, the lower chord is fixed to be welded in second crossbeam bottom, still is equipped with the second bracing piece between the upper chord lower chord, second bracing piece top and upper chord fixed connection, second bracing piece lower part and second crossbeam fixed connection.
Furthermore, the lifting ring is arranged at the top of the first cross beam, and a rib plate is arranged between the lifting ring and the first cross beam.
Furthermore, the number of the upper chords and the number of the lower chords are three, the three upper chords are evenly arranged along the length direction of the first cross beam, and the lower chords and the upper chords are arranged in a one-to-one correspondence mode from top to bottom.
Furthermore, nine hoisting units are provided and are uniformly arranged along the length direction of the upper chord.
The utility model has the advantages that:
1. the hoisting tool for hoisting the reinforcing steel bars of the box girder bottom web plate is more stable, safe and reliable in hoisting the reinforcing steel bars integrally, and can effectively avoid deformation and distortion of a reinforcing steel bar framework in the hoisting process;
2. the box girder bottom web plate steel bar hoisting tool is made into a two-layer truss structure, and the defects that the combined beam hoisting tool is small in self rigidity and easy to deform are overcome. The function of materials can be fully exerted, the materials are saved, the self weight is reduced, and the rigidity is increased;
3. the device has strong practicability and simple structure and is convenient to popularize.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
1. A lower chord; 2. a second cross member; 3. a diagonal bar; 4. a first support bar; 5. an upper chord; 6. a first cross member; 7. a rib plate; 8. a hoisting ring; 9. a second support bar; 10. a wale.
Detailed Description
As shown in the figure, the box girder bottom web plate steel bar hoisting tool comprises a plurality of hoisting units which are arranged in parallel, the hoisting units are fixedly connected through upper chords 5 and lower chords 1 which are arranged in parallel from top to bottom, the number of the hoisting units is nine, the nine hoisting units are uniformly arranged along the length direction of the upper chords 5, the upper chords 5 and the lower chords 1 are vertically arranged with the hoisting units, the cross sections of the hoisting units are isosceles trapezoids, the top surfaces of the hoisting units are also provided with a plurality of hoisting hanging rings 8, the hanging rings 8 are arranged at the top of a first cross beam 6, rib plates 7 are further arranged between the hanging rings 8 and the first cross beam 6 to disperse stress, the hanging rings 8 are provided with chain block lifting hooks, and the chain block lifting hooks are connected with hoisting equipment; further, the hoisting unit comprises a first cross beam 6 and a second cross beam 2 which are arranged in parallel up and down, the length of the first cross beam 6 is smaller than that of the second cross beam 2, the first cross beam 6 is fixedly connected with the second cross beam 2 through a plurality of first supporting rods 4, the first supporting rods 4 are vertically arranged with the first cross beam 6, the end parts of the first cross beam 6 and the second cross beam 2 are also provided with connecting waist beams 10, and the first cross beam 6, the second cross beam 2 and the waist beams 10 at the two end parts form an isosceles trapezoid hoisting unit; further, for the purpose of more stable overall structure, a plurality of diagonal rods 3 are further arranged between the first cross beam 6 and the second cross beam 2, the upper chord 5 is fixedly welded at the bottom of the first cross beam 6, the lower chord 1 is fixedly welded at the bottom of the second cross beam 2, a second support rod 9 is further arranged between the upper chord 5 and the lower chord 1, the top of the second support rod 9 is fixedly connected with the upper chord 5, and the lower part of the second support rod 9 is fixedly connected with the second cross beam 2; further, the number of the upper chords 5 and the number of the lower chords 1 are three, the three upper chords 5 are uniformly arranged along the length direction of the first cross beam 6, and the lower chords 1 and the upper chords 5 are arranged in a one-to-one correspondence manner.
During the concrete use, with the back web steel reinforcement skeleton ligature on the hoist, place the chain block lifting hook in the crane ring, penetrate the plug of diameter 25mm on the steel reinforcement cage surface during lifting with the dispersion concentrated power, can lift by crane girder body muscle can also play the suspension bridge gluten, start the driving and can steadily lift by crane the steel reinforcement cage.
Claims (6)
1. The utility model provides a case breast web reinforcing bar lifting device which characterized in that: the hoisting unit comprises a plurality of hoisting units which are arranged in parallel, the hoisting units are fixedly connected through upper chords and lower chords which are arranged in parallel from top to bottom, the upper chords, the lower chords and the hoisting units are vertically arranged, the cross sections of the hoisting units are isosceles trapezoids, and the top surfaces of the hoisting units are also provided with a plurality of hoisting rings.
2. The box girder bottom web reinforcing bar lifting tool according to claim 1, wherein: the hoisting unit comprises a first cross beam and a second cross beam which are arranged in parallel from top to bottom, the length of the first cross beam is smaller than that of the second cross beam, the first cross beam and the second cross beam are fixedly connected through a plurality of first supporting rods, the first supporting rods and the first cross beam are vertically arranged, the end portions of the first cross beam and the second cross beam are further provided with connecting waist beams, and the waist beams at the first cross beam, the second cross beam and the two end portions form an isosceles trapezoid hoisting unit.
3. The box girder bottom web reinforcing steel bar hoisting tool of claim 2, characterized in that: still be equipped with a plurality of down tube between first crossbeam and the second crossbeam, the upper chord is fixed to be welded in first crossbeam bottom, lower chord is fixed to be welded in second crossbeam bottom, still is equipped with the second bracing piece between the upper chord lower chord, second bracing piece top and upper chord fixed connection, second bracing piece lower part and second crossbeam fixed connection.
4. A box girder bottom web reinforcing bar lifting tool according to claim 3, wherein: the lifting ring is arranged at the top of the first cross beam, and a rib plate is arranged between the lifting ring and the first cross beam.
5. A box girder bottom web reinforcing bar lifting tool according to claim 4, wherein: the number of the upper chords and the number of the lower chords are three, the three upper chords are evenly arranged along the length direction of the first cross beam, and the lower chords and the upper chords are arranged in a one-to-one correspondence mode from top to bottom.
6. A box girder bottom web reinforcing bar lifting tool according to claim 5, wherein: nine hoisting units are provided and are uniformly arranged along the length direction of the upper chord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699783.5U CN209890066U (en) | 2019-05-16 | 2019-05-16 | Box girder bottom web reinforcing bar lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699783.5U CN209890066U (en) | 2019-05-16 | 2019-05-16 | Box girder bottom web reinforcing bar lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209890066U true CN209890066U (en) | 2020-01-03 |
Family
ID=69020794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699783.5U Expired - Fee Related CN209890066U (en) | 2019-05-16 | 2019-05-16 | Box girder bottom web reinforcing bar lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209890066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217684A (en) * | 2019-05-16 | 2019-09-10 | 中交一公局厦门工程有限公司 | Box girder bottom web reinforcing bar lifting device |
-
2019
- 2019-05-16 CN CN201920699783.5U patent/CN209890066U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217684A (en) * | 2019-05-16 | 2019-09-10 | 中交一公局厦门工程有限公司 | Box girder bottom web reinforcing bar lifting device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 |