CN216474532U - Steel case roof beam installation levelling device - Google Patents
Steel case roof beam installation levelling device Download PDFInfo
- Publication number
- CN216474532U CN216474532U CN202122639343.0U CN202122639343U CN216474532U CN 216474532 U CN216474532 U CN 216474532U CN 202122639343 U CN202122639343 U CN 202122639343U CN 216474532 U CN216474532 U CN 216474532U
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- connecting plate
- cross beam
- steel box
- box girder
- upper connecting
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Abstract
The utility model relates to a steel box girder installation leveling device, which comprises a cross beam, wherein an upper connecting plate is vertically welded in the middle of the bottom of the cross beam, the lower end of the upper connecting plate is rotatably connected with a lower connecting plate through a pin shaft, and a row of screw holes are preset in the lower connecting plate; a supporting column is arranged at the bottom of one end of the cross beam, and a jack is vertically arranged at the bottom of the other end of the cross beam. The cantilever type steel box girder erection device is suitable for cantilever type erection of steel box girder sections, adopts the hydraulic jack to assist the crane to control the height of the beam section to be erected, and has the advantages of convenient construction, high steel box girder erection speed and high precision.
Description
Technical Field
The utility model belongs to the technical field of steel structure bridge construction, and relates to a leveling device used for assembling steel box girder segments.
Background
The steel box girder of the stayed-cable steel structure bridge is generally hoisted in sections by adopting a bridge deck crane. As shown in fig. 1, a bridge deck crane 1 is arranged on an installed beam section 2, after a beam section 3 to be installed is lifted to a height flush with the installed beam section 2, the two beam sections are temporarily connected through a connecting plate and a bolt, then welded, after welding is completed, a stay cable is installed, and the bridge deck crane moves forward to the two sections which are just installed, and then the next beam section is lifted. In the construction process, the height of the bridge deck crane 1 when lifting the beam section 3 to be installed is not easy to control, and the leveling difficulty of the bridge deck crane and the leveling difficulty of the installed beam section 2 are higher, so that the construction efficiency and the box girder installation precision are influenced.
Disclosure of Invention
The utility model aims to solve the problems and provides a leveling device for mounting a steel box girder, so that the mounting precision and efficiency of the steel box girder are improved.
The technical scheme of the utility model is as follows:
the utility model provides a steel box girder installation levelling device which characterized in that: the device comprises a cross beam, wherein an upper connecting plate is vertically welded in the middle of the bottom of the cross beam, the lower end of the upper connecting plate is rotatably connected with a lower connecting plate through a pin shaft, and a row of screw holes are preset in the lower connecting plate; a supporting column is arranged at the bottom of one end of the cross beam, and a jack is vertically arranged at the bottom of the other end of the cross beam.
The cantilever type steel box girder segment mounting device is simple in structure and suitable for cantilever type mounting of the steel box girder segment. The auxiliary crane of the hydraulic jack is adopted to control the height of the beam section to be installed, the construction is convenient, the installation speed of the steel box beam is high, and the precision is high.
Drawings
FIG. 1 is a schematic view showing a state in which a bridge deck crane lifts a steel box girder segment;
fig. 2 is a schematic diagram showing the structure and the using state of the present invention.
Detailed Description
As shown in fig. 2, the utility model comprises a beam 4, wherein an upper connecting plate 5 is vertically welded in the middle of the bottom of the beam, the lower end of the upper connecting plate 5 is rotatably connected with a lower connecting plate 6 through a pin shaft, and a row of screw holes are preset on the lower connecting plate; a supporting column 7 is arranged at the bottom of one end of the cross beam, and a jack 8 is vertically arranged at the bottom of the other end of the cross beam.
When the cantilever type steel box girder erection device is used for cantilever type erection construction of steel box girders, after one girder section is completely installed, a ribbed plate 9 is temporarily welded at a position, close to an end head, of the top surface of an installed girder section 2, a bridge deck crane is moved to the installed girder section, the girder section 3 to be installed is firstly lifted to be slightly higher than the installed girder section, a crossbeam 4 of a leveling device crosses a butt joint of two steel box girders, a lower connecting plate 6 is connected with the ribbed plate 9 through a bolt 10, a supporting column support 7 is arranged on the installed girder section 2, the upper end of the supporting column is supported at the bottom of one end of the crossbeam, a jack 8 is arranged on the girder section 3 to be installed, the jack 8 is started to push the other end of the crossbeam 4 upwards, the girder section 3 to be installed is pressed to be flush with the height of the installed girder section 2 by means of counterforce provided by the crossbeam, the two girder sections are temporarily connected through the bolt, and then welding connection between the two steel box girders is carried out. And after one beam section is installed, the leveling device is detached for the installation and construction of the next beam section.
Claims (1)
1. The utility model provides a steel box girder installation levelling device which characterized in that: the device comprises a cross beam, wherein an upper connecting plate is vertically welded in the middle of the bottom of the cross beam, the lower end of the upper connecting plate is rotatably connected with a lower connecting plate through a pin shaft, and a row of screw holes are preset in the lower connecting plate; a supporting column is arranged at the bottom of one end of the cross beam, and a jack is vertically arranged at the bottom of the other end of the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639343.0U CN216474532U (en) | 2021-10-31 | 2021-10-31 | Steel case roof beam installation levelling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639343.0U CN216474532U (en) | 2021-10-31 | 2021-10-31 | Steel case roof beam installation levelling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216474532U true CN216474532U (en) | 2022-05-10 |
Family
ID=81443792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122639343.0U Active CN216474532U (en) | 2021-10-31 | 2021-10-31 | Steel case roof beam installation levelling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216474532U (en) |
-
2021
- 2021-10-31 CN CN202122639343.0U patent/CN216474532U/en active Active
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