CN216864868U - Large cantilever prestress cover beam secondary tensioning platform - Google Patents
Large cantilever prestress cover beam secondary tensioning platform Download PDFInfo
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- CN216864868U CN216864868U CN202220297055.3U CN202220297055U CN216864868U CN 216864868 U CN216864868 U CN 216864868U CN 202220297055 U CN202220297055 U CN 202220297055U CN 216864868 U CN216864868 U CN 216864868U
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Abstract
A secondary tensioning platform for a large cantilever prestressed capping beam comprises main beams which are symmetrically arranged, wherein a hanging basket is fixedly arranged at one end of each main beam, a fixing clamp is movably connected at the other end of each main beam, the main beams are connected through a supporting beam, a plurality of pulley tracks are erected at the upper end of the supporting beam, track pulleys are embedded in the pulley tracks, the upper end of a manual hoist is hooked with the lower end of the track pulley, and a tensioning jack is suspended at the lower end of the manual hoist and can move along with the movement of the track pulley; the pulley track, the track pulley and the hand hoist can adjust the position of the jack in each direction according to the position of the anchor hole, so that efficient secondary tensioning is facilitated; overall structure is simple, and the installation is dismantled conveniently, and the turnover cycle is shorter.
Description
Technical Field
The utility model belongs to the technical field of road and bridge construction, and particularly relates to a secondary tensioning platform for a large cantilever prestressed capping beam.
Background
When the cover beam is tensioned for the second time, the operation is required to be carried out on the outer side of the cover beam, the traditional construction method is that an operation platform carrying operating personnel is hung on the outer side of the cover beam, in addition, a hanging device used for hanging a tensioning jack is additionally arranged, and the secondary tensioning operation of the cover beam is realized.
The operation platform and the suspension device in the traditional structure are independent, the installation and the movement of the operation platform and the suspension device are inconvenient, the operation platform and the suspension device are difficult to be applied to cover beams with different sizes and cannot be effectively adjusted, the construction efficiency is low, and the turnover period of equipment is long.
Therefore, in order to solve the problems, the secondary tensioning platform for the large cantilever prestressed capping beam is provided, which integrates the operation platform and the suspension device into a whole, is convenient to install and adjust, has higher construction efficiency and is rapid in turnover.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the secondary tensioning platform for the large cantilever prestressed capping beam, which has the advantages of simple structure, ingenious design, high construction efficiency, convenience in movement and adjustment and quickness in turnover.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: the utility model provides a big cantilever prestressing force bent cap secondary stretch-draw platform, includes the girder that the symmetry was laid, the one end of girder sets firmly the hanging flower basket, and the other end swing joint mounting fixture of girder connects through supporting beam between the girder, a plurality of pulley tracks are erect to the supporting beam upper end, and the pulley track is embedded to have the track pulley, and the upper end and the track pulley lower extreme of manual hoist collude and link, and the lower extreme of manual hoist hangs the jack-draw, the jack-draw can remove along with the removal of track pulley.
As a preferred scheme of the utility model, the fixing clamp comprises a secondary beam, a counter pull rod, a nut and a gasket, the secondary beam is abutted against the lower end of the wing plate of the T-beam, the gasket is abutted against the upper end of the main beam and the lower end of the secondary beam, and the counter pull rod and the nut are positioned on two sides of the main beam and the secondary beam.
As a preferable scheme of the utility model, the gasket is symmetrically provided with mounting holes, and the counter pull rod penetrates through the mounting holes and is locked by the nuts.
As a preferable scheme of the utility model, the lower end of the main beam is abutted against the upper end of the T-beam wing plate.
As a preferable scheme of the utility model, the two rail pulleys are in a group and are symmetrically embedded into the pulley rail from left to right.
As a preferable scheme of the present invention, the support beam and the basket are located in the same direction, and the distance between the support beam and the fixing clamp is smaller than the distance between the basket and the fixing clamp.
As a preferred aspect of the present invention, a side surface of the basket abuts against a side surface of the lid beam.
As a preferred scheme of the utility model, the main beam, the supporting beam, the pulley track and the hanging basket are all connected by welding.
As a preferred scheme of the utility model, the main beam, the supporting cross beam, the pulley track and the auxiliary beam are all made of I-steel.
In a preferred embodiment of the present invention, the adjacent pulley tracks are arranged at equal intervals.
The utility model has the beneficial effects that:
the utility model integrates the operation platform and the suspension device into a whole, and the fixing clamp of the utility model can be adjusted according to the width of the T beam and is suitable for capping beams with different sizes, and the appearance quality of the track bridge floor is not influenced; the pulley track, the track pulley and the hand hoist can adjust the position of the jack in each direction according to the position of the anchor hole, so that efficient secondary tensioning is facilitated; overall structure is simple, and the installation is dismantled conveniently, and the turnover cycle is shorter.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a partial enlarged view at A;
FIG. 5 is a perspective view of the present invention;
reference numbers in the figures: the device comprises a cover beam 1, a T-shaped beam 2, a main beam 3, an auxiliary beam 4, a tension rod 5, a nut 6, a gasket 7, a supporting cross beam 8, a pulley rail 9, a rail pulley 10, a manual hoist 11, a tensioning jack 12, a hanging basket 13, a mounting hole 71 and a fixing clamp 100.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-5, the secondary tensioning platform for the large cantilever prestressed capping beam comprises main beams 3 which are symmetrically arranged, a hanging basket 13 is fixedly arranged at one end of each main beam 3, the other end of each main beam 3 is movably connected with a fixing clamp 100, the main beams 3 are connected through a supporting cross beam 8, and a plurality of pulley tracks 9 are erected at the upper end of the supporting cross beam 8. The pulley track 9 is embedded with track pulley 10, and the upper end of hand block 11 is colluded with track pulley 10 lower extreme and is linked together, and stretch-draw jack 12 is hung to the lower extreme of hand block 11, stretch-draw jack 12 can remove along with the removal of track pulley 10.
The fixing clamp 100 comprises an auxiliary beam 4, a tension rod 5, a nut 6 and a gasket 7, wherein the auxiliary beam 4 is abutted to the lower end of a T-beam 2 wing plate, and the lower end of a main beam 3 is abutted to the upper end of the T-beam 2 wing plate. The gasket 7 is abutted to the upper end of the main beam 3 and the lower end of the auxiliary beam 4, the opposite pull rod 5 and the nut 6 are positioned on two sides of the main beam 3 and the auxiliary beam 4, and the main beam 3 and the auxiliary beam 4 are used for clamping wing plates of the T beam 2 by the opposite pull rod 5, the nut 6 and the gasket 7.
Specifically, the fixing clamp 100 adjusts the position of the secondary beam 4 according to the width and the thickness of the T-beam 2, and the nut 6 is screwed to the wing plate direction of the T-beam 2 to drive the main beam 3 and the secondary beam 4 to press the wing plate of the T-beam 2.
The tensioning jack 12 is installed on the pulley rail 9 through a hand hoist 11 and a rail pulley 10, and the tensioning jack 12 can adjust the position of the tensioning jack 12 by switching different pulley rails 9 and moving the rail pulley 10 back and forth, so that the tensioning jack is further suitable for different cover beams 1.
The gasket 7 is preferably a 20 × 50 × 0.8cm steel plate, mounting holes 71 are symmetrically distributed on the gasket 7, the mounting holes 71 are located on a central axis of the gasket 7, the mounting holes 71 are preferably circular holes with the diameter of 35mm, the counter pull rod 5 is preferably HRB400 deformed steel with the diameter of 32mm, the nut 6 is an outer hexagon nut matched with the counter pull rod 5, and the counter pull rod 5 penetrates through the mounting holes 71 and is locked through the nut 6.
The adjacent pulley tracks 9 are arranged at equal intervals, 3 pieces of preferably # 16I-steel are arranged, and the distance between the two pieces of preferably 0.6 m is obtained. Two rail pulleys 10 are a group and are symmetrically embedded into the pulley rail 9 in the left-right direction, the rail pulleys 10 are preferably pulleys with the radius of 5cm, on one hand, the friction force of the rail pulleys 10 in the pulley rail 9 is reduced, the movement of the tensioning jack 12 along the pulley rail 9 is promoted, and on the other hand, the balance and the stability of the tensioning jack 12 during sliding are also guaranteed through the bilaterally symmetrical structure.
The supporting beams 8 and the hanging basket 13 are located in the same direction, the supporting beams 8 are preferably # 16I-steel, the distance between the supporting beams 8 and the fixing clamp 100 is smaller than that between the hanging basket 13 and the fixing clamp 100, the supporting beams 8 which are closer to the fixing clamp 100 than the hanging basket 13 enlarge the sliding range of the tensioning jack 12 on the pulley track 9, and the cover beam is suitable for cover beams 1 of more specifications.
The side face of the hanging basket 13 is abutted against the side face of the cover beam 1, so that the hanging basket is convenient for effective positioning during construction of operating personnel.
The main beam 3, the supporting beam 8, the pulley track 9 and the hanging basket 13 are all connected by welding, so that actual installation and disassembly are facilitated. The main beam 3 and the auxiliary beam 4 are also made of I-shaped steel like the supporting cross beam 8 and the pulley track 9, and the main beam 3 and the auxiliary beam 4 are preferably made of #2a I-shaped steel.
When the large cantilever prestress capping beam secondary tensioning platform is concretely implemented:
the main beam 3 and the auxiliary beam 4 are respectively abutted against the upper surface and the lower surface of a wing plate of the T beam 2, the gasket 7 is placed at the upper end of the main beam 3 and the lower end of the auxiliary beam 4, the counter pull rod 5 penetrates through the mounting hole 71 on the gasket 7 and is locked and fixed by the upper nut 6 and the lower nut 6, and therefore the position of the whole working platform is fixed.
According to the position of the prestress tension hole, a proper pulley rail 9 is selected, and a rail pulley 10 is installed on the pulley rail 9 and is subjected to sliding debugging. After the debugging is confirmed to be correct, the upper end of the manual hoist 11 is hung at the lower end of the track pulley 10, the self-carrying iron chain at the lower end of the manual hoist 11 is connected with the tensioning jack 12, and the height of the tensioning jack 12 can be adjusted by pulling the self-carrying iron chain on the manual hoist 11.
When the working platform needs to be adjusted or moved, the nut 6, the opposite pull rod 5, the gasket 7 and the auxiliary beam 4 are only required to be removed, the whole working platform can be lifted to move to a preset position, next operation of the working platform can be realized by fixing the working platform again, and the operation period of the equipment is greatly shortened.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the technical scheme includes that terms such as a cover beam 1, a T-shaped beam 2, a main beam 3, an auxiliary beam 4, a pair of pull rods 5, nuts 6, a gasket 7, a supporting cross beam 8, a pulley rail 9, a rail pulley 10, a manual hoist 11, a tensioning jack 12, a hanging basket 13, mounting holes 71 and a fixing clamp 100 are used, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a big cantilever prestressing force bent cap secondary tension platform which characterized in that: including girder (3) that the symmetry was laid, the one end of girder (3) sets firmly hanging flower basket (13), and other end swing joint mounting fixture (100) of girder (3) are connected through supporting beam (8) between girder (3), a plurality of pulley track (9) are erect to supporting beam (8) upper end, and pulley track (9) are embedded to have track pulley (10), and the upper end and the track pulley (10) lower extreme of manual hoist (11) are colluded and are linked, and stretch-draw jack (12) are hung to the lower extreme of manual hoist (11), stretch-draw jack (12) can remove along with the removal of track pulley (10).
2. The large cantilever prestressed capping beam secondary tensioning platform according to claim 1, wherein: the fixing clamp (100) comprises an auxiliary beam (4), a tension rod (5), a nut (6) and a gasket (7), wherein the auxiliary beam (4) is inconsistent with the lower end of a wing plate of the T beam (2), the gasket (7) is inconsistent with the upper end of the main beam (3) and the lower end of the auxiliary beam (4), and the tension rod (5) and the nut (6) are located on two sides of the main beam (3) and the auxiliary beam (4).
3. The large cantilever prestressed capping beam secondary tensioning platform according to claim 2, wherein: the gasket (7) is symmetrically provided with mounting holes (71), and the opposite pull rod (5) penetrates through the mounting holes (71) and is locked through the nut (6).
4. The large cantilever prestressed capping beam secondary tensioning platform according to claim 3, wherein: the lower end of the main beam (3) is abutted against the upper end of the wing plate of the T-shaped beam (2).
5. The large cantilever prestressed capping beam secondary tensioning platform according to claim 4, wherein: two rail pulleys (10) are a group and are symmetrically embedded into the pulley rail (9) in the left and right direction.
6. The large cantilever prestressed capping beam secondary tensioning platform according to claim 1, wherein: the supporting beam (8) and the hanging basket (13) are located in the same direction, and the distance between the supporting beam (8) and the fixing clamp (100) is smaller than the distance between the hanging basket (13) and the fixing clamp (100).
7. The large cantilever prestressed capping beam secondary tensioning platform according to claim 6, wherein: the side surface of the hanging basket (13) is abutted against the side surface of the cover beam (1).
8. The large cantilever prestressed capping beam secondary tensioning platform according to claim 1, wherein: the main beam (3), the supporting beam (8), the pulley track (9) and the hanging basket (13) are all connected by welding.
9. The large cantilever prestressed capping beam secondary tensioning platform according to claim 1, wherein: the main beam (3), the supporting cross beam (8), the pulley track (9) and the auxiliary beam (4) are all made of I-steel.
10. The large cantilever prestressed capping beam secondary tensioning platform according to claim 1, wherein: the adjacent pulley tracks (9) are arranged at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220297055.3U CN216864868U (en) | 2022-02-15 | 2022-02-15 | Large cantilever prestress cover beam secondary tensioning platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220297055.3U CN216864868U (en) | 2022-02-15 | 2022-02-15 | Large cantilever prestress cover beam secondary tensioning platform |
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| CN216864868U true CN216864868U (en) | 2022-07-01 |
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| CN202220297055.3U Active CN216864868U (en) | 2022-02-15 | 2022-02-15 | Large cantilever prestress cover beam secondary tensioning platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627704A (en) * | 2022-11-02 | 2023-01-20 | 中铁三局集团线桥工程有限公司 | Jack synchronous and rapid transporting device in box girder erection and construction method thereof |
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2022
- 2022-02-15 CN CN202220297055.3U patent/CN216864868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627704A (en) * | 2022-11-02 | 2023-01-20 | 中铁三局集团线桥工程有限公司 | Jack synchronous and rapid transporting device in box girder erection and construction method thereof |
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