CN214301324U - Movable operation platform for steel box girder cantilever installation construction - Google Patents
Movable operation platform for steel box girder cantilever installation construction Download PDFInfo
- Publication number
- CN214301324U CN214301324U CN202022262063.8U CN202022262063U CN214301324U CN 214301324 U CN214301324 U CN 214301324U CN 202022262063 U CN202022262063 U CN 202022262063U CN 214301324 U CN214301324 U CN 214301324U
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- cantilever
- steel box
- frame beam
- lower frame
- roof beam
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Abstract
The utility model relates to a portable work platform for steel case roof beam cantilever installation construction, including upper ledge roof beam and lower frame roof beam, have a determining deviation and one end to pass through the jib between upper and lower frame roof beam and connect, upper ledge roof beam bottom is equipped with the walking wheel, and the lower frame roof beam upper berth is equipped with the platform panel. The utility model discloses hang on the steel case roof beam cantilever, constructor is under construction on the platform panel of lower frame roof beam, can promote along the bridge walking by the manual work, does not receive the construction site environmental restriction, and it is safe convenient to be under construction.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction, a steel box girder cantilever construction of steel construction bridge is related to, concretely relates to portable platform truck for construction of steel box girder cantilever.
Background
The cantilever structures are usually arranged on two sides of a steel box girder of the steel structure bridge along the line, the cantilevers are installed on two sides of the steel box girder after the steel box girder main body is installed in place, and cantilever corbel welding and bolting construction of cantilever stiffening plates need to be carried out below the steel box girder during installation construction. Because the installation and construction of the cantilever belong to high-altitude operation, the working procedures are complicated, and the work amount is large, a temporary high-altitude operation platform needs to be arranged. At present, vehicle-mounted aerial work platforms are frequently adopted, the back-and-forth movement of vehicles in the construction process is often limited by the construction site environment, even the vehicles cannot be used due to the fact that the vehicles cannot meet the in-and-out conditions on the site, difficulties are caused to construction, and the progress of engineering is influenced.
Disclosure of Invention
The utility model aims at providing a to the problem that current vehicular construction platform carried out steel case roof beam cantilever construction and met, provide a portable work platform that is used for steel case roof beam cantilever construction specially, do not receive job site environmental restriction, guarantee that the construction normally goes on to improve the efficiency of construction.
The technical scheme of the utility model as follows:
a movable operation platform for steel box girder cantilever installation construction is provided, wherein a stop block is arranged at the outer edge of a cantilever, and the movable operation platform comprises an upper frame girder and a lower frame girder; the upper frame beam comprises two upper cross beams which are parallel to each other, and a plurality of upper longitudinal beams are welded between the two upper cross beams; the lower frame beam comprises two mutual lower cross beams, and a plurality of lower longitudinal beams are welded between the two lower cross beams; the lower frame beam is positioned right below the upper frame beam, a distance larger than the maximum thickness of the cantilever of the steel box beam is formed between the upper frame beam and the lower frame beam, and a suspender is welded between one end of each upper cross beam and one end of a lower cross beam opposite to the lower end of each upper cross beam; a balancing weight is arranged on the top surface of the upper frame beam far away from the end of the welding hanger; every entablature bottom sets up two vertical walking wheels, and one of them vertical walking wheel is located in the middle of the entablature bottom, and another vertical walking wheel is located the balancing weight below, the underframe roof beam upper berth is equipped with platform panel, its characterized in that: and a horizontal travelling wheel is further arranged at the bottom of each upper cross beam, is close to and faces the upper cross beam welding hanger rod end, and is supported on the inner side of the bridge of the cantilever outer edge stop block.
The utility model has simple structure, can be manufactured and assembled on site, can be constructed only by hanging on the steel box girder cantilever and is not limited by the field; the manual work promotes along the bridge walking in the work progress, and convenient to use removes in a flexible way, has improved work efficiency, and the security is high.
Drawings
Fig. 1 is a schematic elevation structure of the present invention;
fig. 2 is a schematic diagram of the outer structure of the present invention;
fig. 3 is a schematic view of the usage state of the present invention.
Detailed Description
As shown in fig. 1 and 2, the present invention includes an upper frame beam and a lower frame beam; the upper frame beam comprises two upper cross beams 1 which are parallel to each other, and a plurality of upper longitudinal beams 2 are welded between the two upper cross beams; the lower frame beam comprises two mutual lower cross beams 3, and a plurality of lower longitudinal beams 4 are welded between the two lower cross beams; the lower frame beam is positioned right below the upper frame beam, a distance larger than the maximum thickness of the cantilever of the steel box beam is arranged between the upper frame beam and the lower frame beam, and a suspender 5 is welded between one end of each upper cross beam 1 and one end of a lower cross beam 3 opposite to the lower end of the upper cross beam; a balancing weight 6 is arranged on the top surface of the upper frame beam far away from the end of the welding hanger; two vertical traveling wheels 7 and a horizontal traveling wheel 8 are arranged at the bottom of each upper cross beam 1, wherein one vertical traveling wheel 7 is positioned in the middle of the bottom of the upper cross beam, the other vertical traveling wheel is positioned below the balancing weight, and the horizontal traveling wheel 8 is close to and faces the end of the welding hanger rod of the upper cross beam; and a platform panel 9 is paved on the lower frame beam.
The utility model discloses during the specific implementation, for the upper and lower platform of constructor, can weld cat ladder 10 between upper frame roof beam and lower frame roof beam, cat ladder 10 sets up the one end of welding jib between upper frame roof beam and lower frame roof beam.
The utility model discloses during the implementation, for guaranteeing constructor's construction safety on the platform, can weld the guardrail pole setting 11 of many vertical settings on every bottom end rail 3, the upper end and a guardrail horizontal pole 12 of each guardrail pole setting 11 are connected, guardrail horizontal pole 12 one end with jib 5 welds.
As shown in fig. 3, the utility model is used for during steel box girder cantilever erection construction, in steel box girder cantilever 13 hoist target in place and with the preliminary welded fastening back in steel box girder 14 both sides, will with the loop wheel machine the utility model discloses hang by the steel box girder cantilever outside on steel box girder cantilever 13, two vertical walking wheels 7 of every entablature bottom support at cantilever 13 top surface, horizontal walking wheel 8 supports at the bridge inboard of cantilever outer fringe dog 15, the underframe roof beam is located the cantilever below, constructor carries out the bolt construction of cantilever bracket welding and cantilever stiffened plate on passing through the cat ladder to the platform panel by the bridge floor, after the construction of department was accomplished, the manual work promoted work platform at the bridge floor and moves next construction point.
Claims (3)
1. A movable operation platform for steel box girder cantilever installation construction is provided, wherein a stop block is arranged at the outer edge of a cantilever, and the movable operation platform comprises an upper frame girder and a lower frame girder; the upper frame beam comprises two upper cross beams which are parallel to each other, and a plurality of upper longitudinal beams are welded between the two upper cross beams; the lower frame beam comprises two mutual lower cross beams, and a plurality of lower longitudinal beams are welded between the two lower cross beams; the lower frame beam is positioned right below the upper frame beam, a distance larger than the maximum thickness of the cantilever of the steel box beam is formed between the upper frame beam and the lower frame beam, and a suspender is welded between one end of each upper cross beam and one end of a lower cross beam opposite to the lower end of each upper cross beam; a balancing weight is arranged on the top surface of the upper frame beam far away from the end of the welding hanger; every entablature bottom sets up two vertical walking wheels, and one of them vertical walking wheel is located in the middle of the entablature bottom, and another vertical walking wheel is located the balancing weight below, the underframe roof beam upper berth is equipped with platform panel, its characterized in that: and a horizontal travelling wheel is further arranged at the bottom of each upper cross beam, is close to and faces the upper cross beam welding hanger rod end, and is supported on the inner side of the bridge of the cantilever outer edge stop block.
2. The mobile work platform for steel box girder cantilever erection according to claim 1, characterized in that: a ladder stand is arranged at the end of the welding hanger between the upper frame beam and the lower frame beam.
3. The mobile work platform for steel box girder cantilever erection according to claim 1, characterized in that: the welding has the guardrail pole setting of many vertical settings on the bottom end rail, and the upper end and the guardrail horizontal pole of each guardrail pole setting are connected, the one end of guardrail horizontal pole with the jib welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022262063.8U CN214301324U (en) | 2020-10-12 | 2020-10-12 | Movable operation platform for steel box girder cantilever installation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022262063.8U CN214301324U (en) | 2020-10-12 | 2020-10-12 | Movable operation platform for steel box girder cantilever installation construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214301324U true CN214301324U (en) | 2021-09-28 |
Family
ID=77839090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022262063.8U Active CN214301324U (en) | 2020-10-12 | 2020-10-12 | Movable operation platform for steel box girder cantilever installation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214301324U (en) |
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2020
- 2020-10-12 CN CN202022262063.8U patent/CN214301324U/en active Active
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