CN213538662U - Combined temporary support for box girder - Google Patents
Combined temporary support for box girder Download PDFInfo
- Publication number
- CN213538662U CN213538662U CN202022179798.4U CN202022179798U CN213538662U CN 213538662 U CN213538662 U CN 213538662U CN 202022179798 U CN202022179798 U CN 202022179798U CN 213538662 U CN213538662 U CN 213538662U
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- temporary support
- steel frame
- channel
- box girder
- fine sand
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Abstract
The utility model relates to a combination formula temporary support for box girder belongs to bridge construction technical field, and the concrete precast block has been placed to channel-section steel frame top, and the buffering plank has been set up to concrete precast block top, and the channel-section steel frame intussuseption is filled with the fine sand. The combined temporary support does not displace, is convenient to erect, can be repeatedly used and has practicability.
Description
Technical Field
The utility model relates to a temporary support, concretely relates to combination formula temporary support is used to case roof beam belongs to bridge construction technical field.
Background
In the installation and construction of simply supporting and then continuously prefabricating the box girders, the prefabricated box girders are temporarily placed on the temporary supports, the box girders are temporarily not connected, the permanent supports are not stressed, and the temporary supports can be detached to stress the permanent supports after the middle cross beams and the wet joints are poured to reach the design strength. Therefore, the temporary support has enough strength and rigidity, the existing temporary support is not provided with unified standards and structures, the temporary support is temporarily and randomly manufactured on site, more temporary supports cannot be reused, resource waste is caused, and displacement and inclination are easy to occur in the installation and construction of the prefabricated box girder.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a case roof beam is with combination formula temporary support, the displacement does not take place, sets up the convenience, but reuse has the practicality.
For solving the above problems, the specific technical scheme of the utility model is as follows: the utility model provides a box girder is with combination formula temporary support, the concrete precast block has been placed to channel-section steel frame top, and the buffering plank has been set up to concrete precast block top, and the channel-section steel frame intussuseption is filled with the fine sand.
The channel steel frame is a square frame formed by welding four channel steels, and the openings of the channel steels face outwards.
And a soft rubber plate is arranged below the channel steel frame.
The size of the buffer wood board is 200mm by 200mm, and the thickness of the buffer wood board is 15 mm.
The size of the precast concrete block is 200mm 230 mm.
The utility model discloses the beneficial effect who brings does: the residual concrete in site construction can be fully utilized, the applicability is wider than that of steel plate welding, the concrete can be recycled, and the cost can be saved.
The problem of traditional steel pipe sand box difficult dismantlement is solved, the waste of steel pipe steel sheet has been avoided, does not take place displacement, slope, practices thrift the operating expenses.
Drawings
Fig. 1 is a schematic structural view of a combined temporary support for a box girder.
Detailed Description
As shown in figure 1, a concrete precast block 2 has been placed to channel-section steel frame 4 top, and buffering plank 1 has been set up to concrete precast block 2 top, and channel-section steel frame 4 intussuseption is filled with fine sand 3. During the installation, place soft rubber plate 5 on the bent cap top surface earlier, then place channel-section steel frame 4 in soft rubber plate 5, pack fine sand 3 in channel-section steel frame 4, fine sand 3 in the channel-section steel frame 4 is as required support height adjustment, places concrete prefabricated section 2 on the fine sand 3, and buffering plank 1 is placed on concrete prefabricated section 2, will erect the box girder at last and install on this structure. The structure can be dismantled after the conversion of the system which is simply supported and then continuous is finished. When demolising, upwards mention channel-section steel frame 4 along longitudinal centerline direction earlier, slowly scratch and remove bottom part fine sand 3, the back that slowly falls down of case roof beam, scratch whole fine sand 3, demolish concrete prefabricated section 2, buffering plank 1 and soft rubber slab 5 at last, this structure is demolishd to this point and is accomplished, can continue to utilize other case roof beam temporary supports.
The channel steel frame 4 is a square frame formed by welding four channel steels, and the openings of the channel steels face outwards.
And a soft rubber plate 5 is arranged below the channel steel frame 4.
The size of the buffer wood board is 200mm by 200mm, the thickness of the buffer wood board is 15mm, the buffer wood board is placed on the concrete precast block 2, and a buffer effect is achieved between the box girder and the temporary support.
The size of the concrete precast block 2 is 200mm 230mm, the concrete precast block is placed on a channel steel frame 4 filled with fine sand 3, and the height of the fine sand can be adjusted according to actual conditions.
The soft rubber plate 5 is made of soft rubber, the groove steel frame 4 is placed on the soft rubber plate, the four sides of the soft rubber plate are connected in a splicing mode, the base is leveled, and fine sand 3 in the groove steel frame 4 flows out from a gap at the bottom.
In the practical application process, during the installation, place soft rubber plate 5 on bent cap top surface earlier, then place channel-section steel frame 4 in soft rubber plate 5, the support height adjustment as required of fine sand 3 in the channel-section steel frame 4 places concrete prefabricated section 2 on the fine sand 3, and buffering plank 1 is placed on concrete prefabricated section 2, will erect the box girder at last and install on this structure. The structure can be dismantled after the conversion of the system which is simply supported and then continuous is finished.
When demolising, upwards mention channel-section steel frame 4 earlier, slowly scratch and remove partial fine sand 3, and the back is fallen slowly to prefabricated section 2, scratches whole fine sand 3, demolishs concrete prefabricated section 2, buffering plank 1 and soft rubber sheet 5 at last, and this structure is demolishd and is accomplished so far, can continue to utilize other case roof beam temporary supports.
What has been described above is merely a preferred embodiment of the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications and improvements can be made, and shall be considered as belonging to the protection scope of the present invention.
Claims (5)
1. The utility model provides a case roof beam is with combination formula temporary support which characterized in that: concrete precast blocks are placed above the channel steel frame, buffering wood boards are set up above the concrete precast blocks, and the channel steel frame is filled with fine sand.
2. A combined temporary support for a box girder according to claim 1, wherein: the channel steel frame is a square frame formed by welding four channel steels, and the openings of the channel steels face outwards.
3. A combined temporary support for a box girder according to claim 1, wherein: and a soft rubber plate is arranged below the channel steel frame.
4. A combined temporary support for a box girder according to claim 1, wherein: the size of the buffer wood board is 200mm by 200mm, and the thickness of the buffer wood board is 15 mm.
5. A combined temporary support for a box girder according to claim 1, wherein: the size of the precast concrete block is 200mm 230 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179798.4U CN213538662U (en) | 2020-09-29 | 2020-09-29 | Combined temporary support for box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179798.4U CN213538662U (en) | 2020-09-29 | 2020-09-29 | Combined temporary support for box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213538662U true CN213538662U (en) | 2021-06-25 |
Family
ID=76495286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022179798.4U Active CN213538662U (en) | 2020-09-29 | 2020-09-29 | Combined temporary support for box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213538662U (en) |
-
2020
- 2020-09-29 CN CN202022179798.4U patent/CN213538662U/en active Active
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