CN220643898U - Auxiliary supporting leg for pushing steel box girder construction - Google Patents
Auxiliary supporting leg for pushing steel box girder construction Download PDFInfo
- Publication number
- CN220643898U CN220643898U CN202322236724.3U CN202322236724U CN220643898U CN 220643898 U CN220643898 U CN 220643898U CN 202322236724 U CN202322236724 U CN 202322236724U CN 220643898 U CN220643898 U CN 220643898U
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- supporting leg
- box girder
- steel box
- pushing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
An auxiliary supporting leg for pushing steel box girder construction comprises a steel girder (1) horizontally fixed on one side wing plate of I-steel at the front end of the steel box girder, a fixed steel plate (2) horizontally welded on the steel girder, and a movable supporting leg (3); the fixed steel plate is provided with a sliding groove (21), the movable supporting leg passes through the bottom end of the sliding groove and is arranged on the bridge pier capping beam, and the upper part and the lower part of the movable supporting leg are respectively connected with a chain block (4); the cantilever crane is simple in structure and is arranged on one side wing plate of the I-shaped steel at the front end of the steel box girder, so that the problem of shaking of the front end of the cantilever crane is solved, the cantilever crane safely and stably hangs installation equipment such as a pushing bracket and the like onto a bridge pier bent cap, the subsequent pushing steel box girder construction is guaranteed, and the safety stability and the working efficiency of the pushing steel box girder construction at a valley gully are improved.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment for steel box girder construction, and particularly relates to an auxiliary supporting leg for pushing the steel box girder construction at a valley gully.
Background
Compared with a concrete beam, the steel box girder is light, is widely applied to construction of highways, mountain ditches and the like, the steel box girder is installed by adopting a pushing method to enable the steel box girder to be moved from a steel box girder bracket to a steel box girder pier, and pushing installation equipment and the like required by construction are usually hung on a pier capping beam by adopting an automobile crane. However, in bridge construction at the valley gully, the cantilever crane is arranged at the front end of the steel box girder, and the required pushing and installing equipment and the like are hung on the bridge cover girder before the steel box girder is just on the pier because the bridge pier is too high and the automobile crane cannot enter the construction site. However, in the working process of the cantilever crane at the front end of the steel beam, the cantilever crane shakes too much to accurately adjust the hanging position, so that the construction difficulty is increased for the operation of the cantilever crane: 1. when the shaking is too large, the needed pushing installation equipment and the like cannot be safely and accurately hung on the bridge pier capping beam, or the hanging pushing installation equipment and the like fall down to generate potential safety hazards; 2. after the cantilever crane is stable and does not shake, the hanging work can be carried out, and the installation and construction efficiency of the bent cap are directly affected.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an auxiliary supporting leg which has a simple structure, is arranged on a side wing plate of I-steel at the front end of a steel box girder, and is suitable for pushing the steel box girder at a valley gully so as to improve the safety, stability and working efficiency of construction.
The technical scheme adopted by the utility model is as follows:
the auxiliary supporting leg for pushing the steel box girder construction comprises a steel girder 1 horizontally fixed on a wing plate at one side of I-shaped steel at the front end of the steel box girder, a fixed steel plate horizontally welded on the steel girder and a movable supporting leg; the fixed steel plate is provided with a sliding groove, the movable supporting leg penetrates through the bottom end of the sliding groove and is arranged on the bridge pier capping beam, and the upper part and the lower part of the movable supporting leg are respectively connected with the chain block.
Further, 2 auxiliary supporting legs are arranged at the front end of the steel box girder, and the fixed steel plate is arranged on the inner sides of the two movable supporting legs.
Further, the movable supporting leg is made of 20# channel steel.
Further, a welding groove is formed in one end, connected with the steel box girder, of the steel girder.
Further, the steel beam and the movable supporting leg are made of I-steel.
The utility model has the beneficial effects that:
the cantilever crane has the advantages that the structure is simple, the welding groove at one end of the steel beam is inserted into the one side wing plate of the I-shaped steel of the beam nose at the front end of the steel box girder, the movable supporting leg is fixed on the one side wing plate of the I-shaped steel of the beam nose of the steel box girder conveniently and quickly, the movable supporting leg moves up and down in the sliding groove through the force of the hand hoist, the movable supporting leg is arranged on the bridge pier capping beam when the cantilever crane needs to be supported for working, the bottom end of the movable supporting leg is lifted upwards and away from the bridge pier capping beam through the adjustment of the hand hoist when the steel box girder needs to be pushed, the inclination and the shaking of the cantilever crane are effectively prevented, and the safety of pushing the steel box girder is improved; the arrangement of the auxiliary supporting legs solves the problem of front end shaking of the cantilever crane, so that the cantilever crane can safely and stably hoist installation equipment such as a pushing bracket and the like onto a bridge pier bent cap to ensure the subsequent pushing steel box girder construction; the utility model has the advantages of convenient installation and disassembly and repeated recycling, and improves the construction safety and the working efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a schematic view of the usage state of the present utility model.
Detailed Description
As shown in fig. 1, 2 and 3, the auxiliary support leg for pushing the steel box girder construction comprises a steel girder 1 horizontally fixed on one side wing plate of the I-shaped steel at the front end of the steel box girder, one end of the steel girder connected with the steel box girder is provided with a welding groove 12, the welding groove is inserted into one side wing plate of the I-shaped steel at the beam nose of the front end of the steel box girder for welding conveniently and quickly, and other fixing modes in the prior art can be adopted; the fixed steel plate 2 and the movable supporting leg 3 are horizontally welded on the steel beam, the movable supporting leg is made of 20# channel steel, and the supporting force is strong and the supporting is stable; the fixed steel plate is provided with a sliding groove 21, the movable supporting leg penetrates through the bottom end of the sliding groove and is arranged on the bridge pier capping beam, and the upper part and the lower part of the movable supporting leg are respectively connected with the chain block 4. As a preferred implementation mode, 2 auxiliary supporting legs are arranged at the front end of the steel box girder, the fixed steel plate is arranged on the inner sides of the two movable supporting legs, the support is more stable, the inclination and the shaking of the cantilever crane are prevented, and the pushing safety is improved. The steel beam and the movable supporting leg are made of I-steel, so that the supporting strength is high, and the welding is convenient.
The working principle and the process of the utility model are as follows: as shown in fig. 4, a welding groove at one end of a steel beam is inserted into a side wing plate of a beam nose I-steel at the front end of a steel box beam 5 to be fixed, a movable supporting leg with one end provided with a chain block passes through the bottom end of a sliding groove to be arranged on a bridge pier capping beam 6, and the other end is fixed with the chain block; two or more auxiliary supporting legs can be arranged on the beam nose I-steel at the front end of the steel box girder according to the requirements. When the cantilever crane 7 needs to be supported for work, the movable supporting leg is arranged on the bridge pier capping beam through the adjustment of the chain block, so that the cantilever crane does not shake, and the required pushing installation equipment and the like are safely hung on the bridge pier capping beam; when the steel box girder is required to be pushed, the bottom end of the movable supporting leg is lifted upwards away from the pier capping beam through the adjustment of the chain block to complete the pushing, the whole process effectively prevents the cantilever crane from tilting and shaking, and the safety and the working efficiency of the cantilever crane in work and pushing are improved.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (5)
1. The auxiliary supporting leg for pushing the steel box girder construction is characterized by comprising a steel girder (1) horizontally fixed on one side wing plate of I-steel at the front end of the steel box girder, a fixed steel plate (2) horizontally welded on the steel girder and a movable supporting leg (3); the fixed steel plate is provided with a sliding groove (21), the movable supporting leg penetrates through the bottom end of the sliding groove and is arranged on the bridge pier capping beam, and the upper part and the lower part of the movable supporting leg are respectively connected with the chain block (4).
2. The auxiliary supporting leg for pushing steel box girder construction according to claim 1, wherein 2 auxiliary supporting legs are arranged at the front end of the steel box girder, and a fixed steel plate is arranged on the inner sides of the two movable supporting legs.
3. The auxiliary supporting leg for pushing steel box girder construction according to claim 1, wherein the movable supporting leg is made of 20# channel steel.
4. The auxiliary supporting leg for pushing steel box girder construction according to claim 1, wherein one end of the steel girder connected with the steel box girder is provided with a welding groove (12).
5. The auxiliary supporting leg for pushing steel box girder construction according to claim 1, 2 or 4, wherein the steel girder and the movable supporting leg are made of I-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322236724.3U CN220643898U (en) | 2023-08-21 | 2023-08-21 | Auxiliary supporting leg for pushing steel box girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322236724.3U CN220643898U (en) | 2023-08-21 | 2023-08-21 | Auxiliary supporting leg for pushing steel box girder construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220643898U true CN220643898U (en) | 2024-03-22 |
Family
ID=90294564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322236724.3U Active CN220643898U (en) | 2023-08-21 | 2023-08-21 | Auxiliary supporting leg for pushing steel box girder construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220643898U (en) |
-
2023
- 2023-08-21 CN CN202322236724.3U patent/CN220643898U/en active Active
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