CN215055454U - Prestressed tendon tensioning and lifting device - Google Patents
Prestressed tendon tensioning and lifting device Download PDFInfo
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- CN215055454U CN215055454U CN202120511796.2U CN202120511796U CN215055454U CN 215055454 U CN215055454 U CN 215055454U CN 202120511796 U CN202120511796 U CN 202120511796U CN 215055454 U CN215055454 U CN 215055454U
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Abstract
The utility model discloses a prestressed tendon tensioning and hoisting device, which comprises a girder horizontally arranged on a hanging basket main truss, a winch hung on the girder and a limiting component arranged on the girder and limiting the position of the winch; the main beam and the hanging basket main truss are fixedly connected through a connecting assembly. The utility model has the advantages that the tensioning hoisting device is arranged on the hanging basket main truss, so that the tensioning hoisting device can move along with the hanging basket, the repeated installation of the tensioning hoisting device is avoided, and simultaneously, the use of large machinery can be reduced, and the construction process is simplified; meanwhile, the problem of movement of the center-penetrating jack in the prestressed tendon tensioning process is solved, vertical and transverse movement of the center-penetrating jack is achieved, mechanical operation is improved, labor is reduced, safety risks are reduced, and work efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the case roof beam construction, especially, relate to a prestressed reinforcement stretch-draw hoisting accessory.
Background
The conventional prestressed tendon threading method at present is divided into a first threading method and a second threading method. The beam-penetrating method is usually applied to a common prestressed structure, and the construction difficulty is low; and then, the beam penetrating method is often applied to a large-span prestressed structure system, the construction difficulty is high, and along with the increase of the span of the component, the construction difficulty is increased. The post-lacing method is a method of pre-manufacturing the prestressed duct, pouring concrete, and then lacing the prestressed tendons. When the traditional post-lacing method is used for tensioning the prestressed tendons, the prestressed tendons are directly tensioned by manpower or machinery, and in a large-span prestressed structure system, the construction cost is greatly increased and the construction period is longer due to manpower or traditional machinery; and moreover, box girders are built in areas adjacent to the existing lines, the safety distance is limited, large hoisting equipment such as a tower crane cannot be used, the material transfer and the machine transfer are limited during construction, the construction difficulty of workers is increased, and the work efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a prestressed tendon tensioning and hoisting device, which can move along with a cradle by arranging the tensioning and hoisting device on the main truss of the cradle, thereby avoiding repeated installation of the tensioning and hoisting device, reducing the use of large machinery, and simplifying the construction process; meanwhile, the problem of movement of the center-penetrating jack in the prestressed tendon tensioning process is solved, vertical and transverse movement of the center-penetrating jack is achieved, mechanical operation is improved, labor is reduced, safety risks are reduced, and work efficiency is improved.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a prestressing tendons stretch-draw hoisting accessory which characterized in that: the device comprises a main beam horizontally arranged on a main truss of a hanging basket, a winch hung on the main beam and a limiting component arranged on the main beam and used for limiting the position of the winch; the main beam and the hanging basket main truss are fixedly connected through a connecting assembly.
The prestressed tendon tensioning and lifting device is characterized in that: the main truss of the hanging basket comprises a truss main body vertically arranged on the box girder and a cross beam horizontally arranged on the truss main body, and the truss main body and the cross beam are integrally formed.
The prestressed tendon tensioning and lifting device is characterized in that: the truss main body comprises a plurality of trusses vertically arranged on the top surface of the box girder, the trusses are uniformly distributed along the width direction of the box girder, the cross beam is horizontally connected with the trusses, and the trusses and the cross beam are integrally formed.
The prestressed tendon tensioning and lifting device is characterized in that: the main beam is horizontally arranged below the cross beam, and the length of the main beam is greater than the width of the truss main body.
The prestressed tendon tensioning and lifting device is characterized in that: the limiting assembly comprises limiting parts which are arranged at two ends of the main beam and limit the position of the winch.
The prestressed tendon tensioning and lifting device is characterized in that: the connecting assembly comprises a plurality of connecting plates arranged at the connecting position of the main beam and the truss, and the connecting plates are uniformly distributed along the circumferential direction of the truss.
The prestressed tendon tensioning and lifting device is characterized in that: the connecting plates comprise two first connecting plates and two second connecting plates which are arranged on the main beam, the two first connecting plates are arranged along the length direction of the main beam, and the two second connecting plates are arranged along the width direction of the main beam.
The prestressed tendon tensioning and lifting device is characterized in that: the first connecting plate is of a right-angled triangle structure, one right-angle side of the first connecting plate is fixed to the main beam, and the other right-angle side of the first connecting plate is fixed to the truss.
The prestressed tendon tensioning and lifting device is characterized in that: the second connecting plate is of a right-angled trapezoid structure, the upper bottom of the second connecting plate is fixed to the truss, and the waist of the second connecting plate is fixed to the main beam.
The prestressed tendon tensioning and lifting device is characterized in that: the horizontal distance between the main beam and the end face of the box girder is 40-70 cm.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses set up stretch-draw hoisting accessory on hanging basket owner truss, make stretch-draw hoisting accessory can remove along with hanging the basket together, avoids repeated installation stretch-draw hoisting accessory also can reduce simultaneously and use large-scale machinery, has simplified construction process.
2. The utility model discloses a set up stretch-draw hoisting accessory is the removal problem of punching jack in order to solve prestressing tendons stretch-draw process, realizes punching jack's vertical and lateral shifting, improves mechanized operations, reduces the manual work, reduces safe risk, improves the work efficiency.
3. The utility model discloses in set up spacing subassembly on the girder, can prevent that the hoist engine from removing the in-process and breaking away from the girder, avoid taking place the incident.
To sum up, the utility model arranges the tensioning hoisting device on the hanging basket main truss, so that the tensioning hoisting device can move along with the hanging basket, thereby avoiding the repeated installation of the tensioning hoisting device, simultaneously reducing the use of large machinery and simplifying the construction process; meanwhile, the problem of movement of the center-penetrating jack in the prestressed tendon tensioning process is solved, vertical and transverse movement of the center-penetrating jack is achieved, mechanical operation is improved, labor is reduced, safety risks are reduced, and work efficiency is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a usage state diagram of the present invention.
Description of reference numerals:
1-box girder; 4-prestressed tendons; 6, a main beam;
7, a winch; 11-1-beam; 11-2-truss;
12 — a first connection plate; 13-a second connecting plate; 14-a stopper.
Detailed Description
As shown in fig. 1, the utility model comprises a main beam 6 horizontally arranged on a main truss of a hanging basket, a winch 7 hung on the main beam 6, and a limit component arranged on the main beam 6 and limiting the position of the winch 7; the main beam 6 and the hanging basket main truss are fixedly connected through a connecting assembly.
During the in-service use, the utility model discloses set up stretch-draw hoisting accessory on hanging basket owner truss, make stretch-draw hoisting accessory can remove along with hanging the basket together, avoids repeated installation stretch-draw hoisting accessory also can reduce simultaneously and use large-scale machinery, has simplified construction process.
The utility model discloses a set up stretch-draw hoisting accessory is the removal problem of punching jack in order to solve prestressing tendons stretch-draw process, realizes punching jack's vertical and lateral shifting, improves mechanized operations, reduces the manual work, reduces safe risk, improves the work efficiency.
The utility model discloses in set up spacing subassembly on the girder 6, can prevent that 7 removal in-process of hoist engine from breaking away from girder 6, avoid taking place the incident.
It should be noted that, in actual use, the main beam 6 and the truss 11-2 enclose a structure in the shape of a Chinese character 'men', and the truss 11-2 is a plane or space structure composed of straight bars and generally provided with triangular units; the main beam 6 is made of 200mm multiplied by 200mm H-shaped steel, the two ends of the main beam 6 are provided with limiting assemblies, a 5T winch is installed on the H-shaped steel, the H-shaped steel and the hanging basket main truss are connected through trapezoidal plates and triangular plates, and the plate thickness is 16 mm.
As shown in fig. 1, in this embodiment, the main truss of the hanging basket includes a truss main body vertically disposed on a box girder 1 and a cross beam 11-1 horizontally disposed on the truss main body, and the truss main body and the cross beam 11-1 are integrally formed.
As shown in fig. 1, in this embodiment, the truss main body includes a plurality of trusses 11-2 vertically disposed on the top surface of the box girder 1, the plurality of trusses 11-2 are uniformly arranged in the width direction of the box girder 1, the cross girder 11-1 horizontally connects the plurality of trusses 11-2, and the plurality of trusses 11-2 and the cross girder 11-1 are integrally formed.
In practical use, the truss main body is composed of a plurality of trusses 11-2, and the cross beam 11-1 connects the trusses 11-2, so that the truss main body can move integrally.
As shown in fig. 1, in this embodiment, the main beams 6 are horizontally arranged below the cross beams 11-1, and the length of the main beams 6 is greater than the width of the truss body.
As shown in fig. 1, in the present embodiment, the limiting component includes limiting members 14 disposed at two ends of the main beam 6 and limiting the position of the hoisting machine 7.
In practical use, the limiting members 14 are additionally arranged at the two ends of the main beam 6, so that the winch 7 is prevented from being separated from the main beam 6 in the moving process, and the use safety of the winch 7 is enhanced.
In the present embodiment, as shown in fig. 1, the connecting assembly includes a plurality of connecting plates disposed at the connection between the main beam 6 and the truss 11-2, and the plurality of connecting plates are uniformly arranged along the circumferential direction of the truss 11-2.
In this embodiment, the connecting plates include two first connecting plates 12 and two second connecting plates 13 both disposed on the main beam 6, the two first connecting plates 12 are disposed along the length direction of the main beam 6, and the two second connecting plates 13 are disposed along the width direction of the main beam 6.
In actual use, the main beam 6 is fixedly connected with the truss 11-2 into a whole through the first connecting plate 12 and the second connecting plate 13, and the main beam 6 moves along with the movement of the hanging basket; meanwhile, the first connecting plate 12 and the second connecting plate 13 are used for connecting the periphery of the truss 11-2 with the main beam 6, so that the stability of connection between the main beam 6 and the truss 11-2 is ensured.
In the embodiment, as shown in fig. 1, the first connecting plate 12 is a right triangle, one right-angled side of the first connecting plate 12 is fixed on the main beam 6, and the other right-angled side of the first connecting plate 12 is fixed on the truss 11-2.
In this embodiment, the second connecting plate 13 is a right trapezoid structure, an upper bottom of the second connecting plate 13 is fixed to the truss 11-2, and a waist of the second connecting plate 13 is fixed to the main beam 6.
In this embodiment, the horizontal distance between the main beam 6 and the end face of the box girder 1 is 40cm to 70 cm.
In practical use, the horizontal distance between the end surface of the box girder 1 and the main girder 6 is preferably 50cm, so that workers can operate the winch 7 and the center-penetrating jack conveniently. After a constructor pours a section of box girder 1 by using the hanging basket, the main girder 6 is positioned at the front side of the section of box girder 1, the horizontal distance from the front side of the section of box girder 1 is 50cm, and the constructor hangs the center penetrating jack on the winch 7 and transfers the jack, so that the construction steps of the winch 7 can be simplified, and the operation of the constructor is convenient.
When the utility model is used, firstly, a tensioning hoisting device is arranged on the hanging basket main truss, then a constructor pours the box girder 1 by utilizing the hanging basket, maintains the poured and formed box girder 1, and passes through the prestressed tendons in the poured box girder 1, wherein the prestressed tendons are formed by weaving a plurality of prestressed tendons 4; fixing the prestressed tendons at the duct openings of the prestressed tendon ducts by using an anchorage device and a clamping piece; then, a constructor connects a hook of a winch 7 to a lifting ring of a center-penetrating jack, starts the winch 7, lifts and moves the winch 7, and moves the center-penetrating jack to be right above an extending end of one prestressed tendon; lowering the winch 7, and moving the penetrating jack to the end part of the prestressed tendon to enable the central axis of the penetrating jack to coincide with the central axis of the prestressed tendon; pulling a steel wire rope on the winch 7, and sleeving the penetrating jack on the extending end of the prestressed tendon; fixing the prestressed beam and the core-penetrating jack by using an anchorage device and a clamping piece; and finally, starting the winch 7 to drive the penetrating jack to act, and tensioning the prestressed tendons fixed in the penetrating jack.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (10)
1. The utility model provides a prestressing tendons stretch-draw hoisting accessory which characterized in that: the device comprises a main beam (6) horizontally arranged on a main truss of a hanging basket, a winch (7) hung on the main beam (6) and a limiting component which is arranged on the main beam (6) and limits the position of the winch (7); the main beam (6) and the hanging basket main truss are fixedly connected through a connecting assembly.
2. A tendon tensioning and lifting device as claimed in claim 1, wherein: the main truss of the hanging basket comprises a truss main body vertically arranged on a box girder (1) and a cross beam (11-1) horizontally arranged on the truss main body, and the truss main body and the cross beam (11-1) are integrally formed.
3. A tendon tensioning and lifting device as claimed in claim 2, wherein: the truss main body comprises a plurality of trusses (11-2) vertically arranged on the top surface of the box girder (1), the trusses (11-2) are uniformly distributed in the width direction of the box girder (1), the cross beam (11-1) is horizontally connected with the trusses (11-2), and the trusses (11-2) and the cross beam (11-1) are integrally formed.
4. A tendon tensioning and lifting device as claimed in claim 3, wherein: the main beam (6) is horizontally arranged below the cross beam (11-1), and the length of the main beam (6) is greater than the width of the truss main body.
5. A tendon tensioning and lifting device as claimed in claim 1, wherein: the limiting component comprises limiting parts (14) which are arranged at two ends of the main beam (6) and limit the position of the winch (7).
6. A tendon tensioning and lifting device as claimed in claim 3, wherein: the connecting assembly comprises a plurality of connecting plates arranged at the connecting position of the main beam (6) and the truss (11-2), and the connecting plates are uniformly distributed along the circumferential direction of the truss (11-2).
7. A prestressed tendon tensioning and lifting device as claimed in claim 6, wherein: the connecting plates comprise two first connecting plates (12) and two second connecting plates (13) which are arranged on the main beam (6), the first connecting plates (12) are arranged along the length direction of the main beam (6), and the second connecting plates (13) are arranged along the width direction of the main beam (6).
8. The tendon tensioning and lifting device according to claim 7, wherein: the first connecting plate (12) is of a right-angled triangle structure, one right-angled edge of the first connecting plate (12) is fixed to the main beam (6), and the other right-angled edge of the first connecting plate (12) is fixed to the truss (11-2).
9. A tendon tensioning and lifting device as claimed in claim 8, wherein: the second connecting plate (13) is of a right-angle trapezoid structure, the upper bottom of the second connecting plate (13) is fixed to the truss (11-2), and the waist of the second connecting plate (13) is fixed to the main beam (6).
10. A tendon tensioning and lifting device as claimed in claim 1, wherein: the horizontal distance between the main beam (6) and the end face of the box girder (1) is 40-70 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120511796.2U CN215055454U (en) | 2021-03-10 | 2021-03-10 | Prestressed tendon tensioning and lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120511796.2U CN215055454U (en) | 2021-03-10 | 2021-03-10 | Prestressed tendon tensioning and lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215055454U true CN215055454U (en) | 2021-12-07 |
Family
ID=79260448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120511796.2U Active CN215055454U (en) | 2021-03-10 | 2021-03-10 | Prestressed tendon tensioning and lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215055454U (en) |
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2021
- 2021-03-10 CN CN202120511796.2U patent/CN215055454U/en active Active
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