CN212128882U - Finish rolling screw-thread steel locking demolishs support device - Google Patents
Finish rolling screw-thread steel locking demolishs support device Download PDFInfo
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- CN212128882U CN212128882U CN202020550876.4U CN202020550876U CN212128882U CN 212128882 U CN212128882 U CN 212128882U CN 202020550876 U CN202020550876 U CN 202020550876U CN 212128882 U CN212128882 U CN 212128882U
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- locking
- longitudinal beam
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Abstract
The utility model provides a support device is demolishd in locking of finish rolling deformed steel bar, relates to municipal works, railway engineering, highway engineering construction technical field, and in particular to bridge support demolishs construction technical field such as cable-stay bridge, suspension bridge. The bearing beam is positioned on the top surface of the support to be removed and corresponds to the main longitudinal beam in position. The key technology is that main prestressed steel bars are arranged between two ends of a main longitudinal beam and two ends of bearing beams in a penetrating mode, and connecting section steel is arranged between the two bearing beams. The utility model has the advantages that: the utility model discloses a spandrel girder, main prestressed reinforcement will need to demolish the locking of support system and die, and inhomogeneity, asynchronism when having solved sand box or wedge plate and falling the frame cause the difficult problem that the support topples, easy dismounting, greatly reduced support demolish the safety risk of in-process.
Description
The technical field is as follows:
the utility model provides a support device is demolishd in locking of finish rolling deformed steel bar, relates to municipal works, railway engineering, highway engineering construction technical field, and in particular to bridge support demolishs construction technical field such as cable-stay bridge, suspension bridge.
Background art:
in the dismantling construction of bridge supports (see fig. 1) such as cable-stayed bridges, suspension bridges and the like in the fields of municipal administration, railways, highway engineering and the like, the support dismantling is generally performed by firstly reducing the height of a sand box 9 and then dropping the support on the sand box 9. Since sand is loaded in the sand box, once the sand discharging speed is inconsistent, the whole sand box is descended at an uneven height, and the support can topple and collapse, thereby causing safety accidents.
The invention content is as follows:
the to-be-solved problem of the utility model is to just provide a locking that prevents to be dismantled the support and topple and collapse demolishs device to above not enough. The technical scheme is as follows:
the bearing beam is positioned on the top surface of the support to be removed and corresponds to the main longitudinal beam in position. The key technology is that main prestressed steel bars are arranged between two ends of a main longitudinal beam and two ends of bearing beams in a penetrating mode, and connecting section steel is arranged between the two bearing beams.
And main longitudinal beam holes are formed in the upper flange plate and the lower flange plate of the main longitudinal beam, and reinforcing steel plates are arranged on two sides of the main longitudinal beam holes.
Two ends of the bearing beam are provided with bearing beam holes, and reinforced prestressed reinforcements are arranged on two sides of the bearing beam holes.
The main prestressed reinforcement is locked by a base plate and a locking nut.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a spandrel girder, main prestressed reinforcement will need to demolish the locking of support system and die, and inhomogeneity, asynchronism when having solved sand box or wedge plate and falling the frame cause the difficult problem that the support toppled.
2. The utility model discloses simple structure, easy dismounting.
3. The utility model discloses but the safety risk of greatly reduced support demolishment in-process.
Description of the drawings:
FIG. 1 is a schematic view showing a prior art structure in which a support (flask) is removed;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the reinforced steel plate of the present invention;
FIG. 4 is a plan view of the present invention;
FIG. 5 is a view showing the arrangement of the locking of the reinforcing prestressed reinforcement of the present invention;
fig. 6 is a structural view of the main prestressed reinforcement lock nut and the base plate of the present invention.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the following embodiments, which are intended to explain the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the protection scope of the present invention by the same or similar techniques.
Referring to fig. 2 and 4, the utility model discloses a main longitudinal beam 1, spandrel girder 2, main longitudinal beam 1 are two roof beams that are parallel, are located the lower floor that needs to demolish the support, and spandrel girder 2 is located and needs to demolish the support top surface, corresponds with main longitudinal beam 1 position. The key technology is that a 9m long main prestressed reinforcement 6 is arranged between two ends of a main longitudinal beam 1 and two ends of a bearing beam 2 in a penetrating mode to lock the whole support, and a connecting section steel 3 is arranged between the two bearing beams 2 to enable the two bearing beams to form a whole.
As shown in fig. 3, main longitudinal beam holes 1.1 are formed in upper and lower flange plates of a main longitudinal beam 1, and reinforcing steel plates 1.2 are welded on two sides of the main longitudinal beam holes 1.1 to reinforce the holes.
Referring to fig. 5, two ends of a bearing beam 2 are provided with bearing beam holes 2.1, and reinforcing prestressed reinforcements 4 are arranged on webs on two sides of the bearing beam holes 2.1 through butterfly nuts 5 and used for reinforcing the bearing beam holes 2.1.
Referring to fig. 6, the primary prestressed reinforcement 6 is locked using a tie plate 7 and a lock nut 8.
The main longitudinal beam 1 is made of Q235 double-spliced I56b I-shaped steel.
The reinforcing steel plate 1.2 is made of Q235, the width is 150mm, the length is consistent with the width of the flange of the I-shaped steel of the main longitudinal beam, and the thickness is 20 mm.
The bearing beam 2 is made of Q235 double-spliced I56b I-shaped steel or other types of I-shaped steel (determined by calculating the whole weight of the beam support).
The connecting section steel 3 is made of Q235 and is angle steel with the size of 100mm 12 mm.
The reinforced prestressed steel bar 4 is PSB930 fine-rolled deformed steel bar with the diameter of 20 mm.
The butterfly nut 5 is matched with the reinforcing prestress for use and is customized by manufacturers.
The main prestressed reinforcement 6 is PSB930, and is made of fine-rolled deformed steel bar with the diameter of 40mm (determined by calculating according to the whole weight of the bracket).
The backing plate 7 is made of a steel plate Q345C, the size of the steel plate is 180mm x 180mm, and the thickness of the steel plate is 40 mm.
The locking nut 8 is matched with the main prestressed reinforcement 6 for use, is customized by manufacturers, and has the length of 70 mm.
After the sand box 9 or the wedge block is removed, the locking nut 8 is unscrewed, the supports are lowered to the bracket, and finally the supports are removed one by one.
Claims (4)
1. The utility model provides a support device is demolishd in locking of finish rolling screw-thread steel, includes main longitudinal girder (1), spandrel girder (2), and main longitudinal girder (1) is two roof beams that are parallel, is located the lower floor that needs to demolish the support, and spandrel girder (2) are located and need demolish the support top surface, correspond with main longitudinal girder (1) position, and characterized by wears to establish main prestressing steel (6) between the both ends of main longitudinal girder (1) and spandrel girder (2), sets up between two spandrel girders (2) and connects shaped steel (3).
2. The finish-rolled deformed steel bar locking and dismantling bracket device as set forth in claim 1, wherein main longitudinal beam holes (1.1) are formed in upper and lower flange plates of the main longitudinal beam (1), and reinforcing steel plates (1.2) are provided on both sides of the main longitudinal beam holes (1.1).
3. The finish-rolled deformed steel bar locking and dismantling support device according to claim 1, wherein two ends of the bearing beam (2) are provided with bearing beam holes (2.1), and reinforcing prestressed reinforcements (4) are arranged on two sides of the bearing beam holes (2.1).
4. The finish rolled deformed steel bar locking and dismantling bracket device as set forth in claim 1, wherein the main prestressed reinforcement (6) is locked by a washer (7) and a lock nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020550876.4U CN212128882U (en) | 2020-04-14 | 2020-04-14 | Finish rolling screw-thread steel locking demolishs support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020550876.4U CN212128882U (en) | 2020-04-14 | 2020-04-14 | Finish rolling screw-thread steel locking demolishs support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212128882U true CN212128882U (en) | 2020-12-11 |
Family
ID=73687657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020550876.4U Active CN212128882U (en) | 2020-04-14 | 2020-04-14 | Finish rolling screw-thread steel locking demolishs support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212128882U (en) |
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2020
- 2020-04-14 CN CN202020550876.4U patent/CN212128882U/en active Active
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