CN219839967U - Steel box girder suspension type movable construction operation platform - Google Patents
Steel box girder suspension type movable construction operation platform Download PDFInfo
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- CN219839967U CN219839967U CN202321237399.6U CN202321237399U CN219839967U CN 219839967 U CN219839967 U CN 219839967U CN 202321237399 U CN202321237399 U CN 202321237399U CN 219839967 U CN219839967 U CN 219839967U
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- box girder
- platform
- steel box
- sliding guide
- suspension type
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 239000000725 suspension Substances 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
A steel box girder suspension type movable construction operation platform relates to the technical field of large-section steel box girder field assembly construction. The utility model solves the problems of complex working procedures, high safety risk, high workload and low work efficiency in the welding assembly and welding line inspection operation of the large-section steel box girder under the environment of complex terrain. The platform body is of a cuboid frame structure, the cross section of the platform body is U-shaped, two sliding guide rails which are horizontally arranged are respectively arranged on two sides of the upper end of the platform body along the length direction of the platform body, a plurality of vertically arranged platform pendants are arranged between each sliding guide rail and a steel box girder cantilever arm, each platform pendants comprises a hanging part and a pulley part, the upper end of each hanging part is hung on an upper edge steel plate of the steel box girder cantilever arm, the pulley part is arranged at the lower end of each hanging part, and the pulley parts are in sliding connection with the sliding guide rails. The utility model is used for welding and assembling and welding line checking operation of the large-section steel box girder under the environment of complex terrain.
Description
Technical Field
The utility model relates to the technical field of site assembly construction of large-section steel box girders, in particular to a steel box girder suspension type movable construction operation platform.
Background
Along with the rapid development of bridge construction in China, the requirements for the bridge crossing the sea of roads and railways are continuously increased, and in the field assembly construction process of large-section steel box girders, brackets such as scaffolds are mainly used for erecting an operation platform so as to carry out welding construction. After the steel box girder cantilever arm is installed, welding seam detection, cantilever arm welding, longitudinal beam welding and maintenance car hanging piece welding work are required, a scaffold and an operation platform are required to be erected for next construction according to a general process, the steel box girder cantilever arm is arranged every 4 meters, the maintenance car hanging piece and the longitudinal beam welding can only be constructed after the cantilever arm welding is completed in order to ensure the alignment, and the scaffold can only be erected repeatedly for the completion of construction, so that a large amount of labor and time are consumed. The construction method has the advantages of complex working procedures, high safety risk, high workload, low work efficiency, serious influence on the construction progress, inconvenience in mounting and dismounting the scaffold buttress, influence on the appearance of the steel box girder due to the buttress, and other factors influencing the construction. How to efficiently, smoothly and safely finish steel box girder welding line detection, longitudinal beam welding and maintenance truck hanging part welding in a specified construction period is a construction difficulty, and the problems of complex working procedures, high safety risk, high workload and low work efficiency can be effectively solved by using a suspension type movable platform to replace a built scaffold, so that the aims of welding maintenance truck hanging parts, welding longitudinal beams and welding line detection are safely and efficiently achieved, and the method is worthy of popularization in large-section steel box girder welding assembly operation.
Disclosure of Invention
The utility model aims to solve the problems of complex procedures, high safety risk, high workload and low work efficiency in the conventional welding assembly and weld inspection operation of large-section steel box girders under the environment of complex terrain, and further provides a steel box girder suspension type movable construction operation platform.
The technical scheme of the utility model is as follows:
the utility model provides a steel case roof beam suspension type movable construction operation platform, it includes platform main part 1, two slide rail 2 and a plurality of platform pendant 3, platform main part 1 is cuboid frame construction, the cross section of platform main part 1 is the U style of calligraphy, two slide rail 2 that horizontal arrangement are installed respectively along its length direction in platform main part 1 upper end both sides, be equipped with a plurality of vertically arranged platform pendant 3 between every slide rail 2 and the steel case roof beam cantilever arm 4, every platform pendant 3 includes hanging part 31 and pulley portion 32, hanging part 31 upper end articulates on the upper edge steel sheet of steel case roof beam cantilever arm 4, pulley portion 32 is installed to hanging part 31 lower extreme, pulley portion 32 and slide rail 2 sliding connection.
Further, the cross section of the sliding guide rail 2 is i-shaped.
Further, the pulley portion 32 includes a top plate 321, two side plates 322 and two pulleys 323, two vertically arranged side plates 322 are fixedly connected to the left and right sides of the top plate 321, two coaxially arranged pulleys 323 are rotatably mounted on the inner sides of the two side plates 322, and a sliding guide rail 2 is slidably inserted between the two pulleys 323.
Further, the two pulleys 323 are spaced apart a distance less than the width of the upper flanks of the slide rail 2.
Further, the middle web thickness of the sliding guide 2 is smaller than the distance between the two pulleys 323.
Further, the hanging portion 31 comprises a C-shaped hook 311 and a stand column 312, the side opening of the C-shaped hook 311 is matched with the upper edge steel plate of the steel box girder cantilever arm 4, the lower end of the C-shaped hook 311 is fixedly connected with the upper end of the stand column 312, and the lower end of the stand column 312 is fixedly connected with the middle part of the upper end face of the top plate 321 of the pulley portion 32.
Further, the plurality of platform pendants 3 on the left and right sides are disposed two by two.
Further, the platform main body 1 comprises two upper cross beams, two lower cross beams, a plurality of platform struts and a plurality of platform bottom plates, wherein the two upper cross beams are horizontally arranged side by side, two lower cross beams horizontally arranged side by side are respectively arranged under the two upper cross beams, the two lower cross beams are fixedly connected through the plurality of platform bottom plates, and each upper cross beam is fixedly connected with the lower cross beam corresponding to the lower side through the plurality of platform struts.
Compared with the prior art, the utility model has the following effects:
1. when the steel box girder suspension type movable construction operation platform is used for welding longitudinal beams and overhauling car pendants, the operation platform is only required to be installed on the cantilever arm pendant pulley by using hoisting equipment every time, personnel can enter the platform to carry out construction tasks, welding seam detection, longitudinal beam installation and overhauling car pendant welding installation are carried out by adopting the method, a scaffold is not required to be repeatedly installed, the platform is safer and more stable, large mechanical cost used when the scaffold is installed in a matched mode is saved, and time and labor cost are greatly saved.
2. In the steel box girder assembly construction, the operation platform is used, the operation is simple, the construction efficiency is high, the safety is higher, the damage of a scaffold buttress to the steel box girder can be omitted, the polishing procedure of welding marks on the surface of the steel box girder is saved, the operation cost is saved in a specified construction period more efficiently and smoothly, and the steel box girder assembly construction method is safe and practical and is worthy of popularization and use in the same type of construction.
Drawings
FIG. 1 is a cross-sectional view of a steel box girder suspension type movable construction operation platform of the present utility model;
FIG. 2 is an enlarged view of the steel box girder suspension type movable construction operation platform of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1 at A-A;
fig. 4 is a front view of the slide rail 2 of the present utility model;
fig. 5 is a side view of the sliding guide rail 2 of the present utility model;
fig. 6 is a schematic installation view of the steel box girder suspension type movable construction operation platform of the present utility model.
Detailed Description
The first embodiment is as follows: referring to fig. 1 to 6, a steel box girder suspension type movable construction operation platform according to this embodiment includes a platform main body 1, two sliding guide rails 2 and a plurality of platform pendants 3, the platform main body 1 is a rectangular frame structure, the cross section of the platform main body 1 is in a U shape, two sliding guide rails 2 horizontally arranged are respectively installed along the length direction of the two sides of the upper end of the platform main body 1, a plurality of vertically arranged platform pendants 3 are arranged between each sliding guide rail 2 and a steel box girder cantilever arm 4, each platform pendants 3 includes a hanging portion 31 and a pulley portion 32, the upper end of the hanging portion 31 is hung on an upper edge steel plate of the steel box girder cantilever arm 4, the pulley portion 32 is installed at the lower end of the hanging portion 31, and the pulley portion 32 is in sliding connection with the sliding guide rails 2.
The steel box girder suspension type movable construction operation platform of the embodiment uses channel steel with the size of 100mm and pulleys to manufacture a platform hanging piece 3, uses I-steel with the size of 100mm to manufacture a sliding guide rail 2, uses angle steel with the size of 50mm for welding and assembling a platform main body 1, manufactures a wood plug convenient to detach, and welds the sliding guide rail 2 and the platform main body 1, wherein the total weight is about 1.4t.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 and 2, in which the cross section of the slide rail 2 is i-shaped. Other compositions and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: referring to fig. 4 and 5, the pulley portion 32 of the present embodiment includes a top plate 321, two side plates 322, and two pulleys 323, wherein two vertically arranged side plates 322 are fixedly connected to the left and right sides of the top plate 321, two coaxially arranged pulleys 323 are rotatably mounted inside the two side plates 322, and a slide rail 2 is slidably inserted between the two pulleys 323. Other compositions and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: in the present embodiment described with reference to fig. 2 and 5, the distance between the two pulleys 323 is smaller than the width of the upper wing plate of the slide rail 2. Other compositions and connection relationships are the same as those of the first, second or third embodiments.
Fifth embodiment: the present embodiment will be described with reference to fig. 2 and 5, in which the thickness of the web in the middle of the slide rail 2 is smaller than the distance between the two pulleys 323. Other compositions and connection relationships are the same as those of the first, second, third or fourth embodiments.
Specific embodiment six: referring to fig. 2 and 5, the hanging portion 31 of the present embodiment includes a C-shaped hook 311 and a column 312, wherein a side opening of the C-shaped hook 311 is matched with an upper edge steel plate of the cantilever arm 4 of the steel box girder, a lower end of the C-shaped hook 311 is fixedly connected with an upper end of the column 312, and a lower end of the column 312 is fixedly connected with a middle portion of an upper end face of the top plate 321 of the pulley portion 32. So set up, adopt C style of calligraphy couple 311 and steel case roof beam to cantilever the mode of dismantling of the upper edge steel sheet of arm 4, be convenient for with advance the opposite platform pendant 3 of direction and remove and install on the arm that cantilever on the direction of advance of platform from the rear, the pendant circulation installation, the platform can reach the purpose of continuous movement. Other compositions and connection relationships are the same as those of the first, second, third, fourth or fifth embodiments.
Seventh embodiment: the present embodiment will be described with reference to fig. 3, in which a plurality of platform pendants 3 on the left and right sides of the present embodiment are arranged in pairs. So set up, guarantee that platform main part 1 is through smooth joint on platform pendant 3 of sliding guide 2. Other compositions and connection relationships are the same as those of the first, second, third, fourth, fifth or sixth embodiments.
Eighth embodiment: referring to fig. 2 and 3, the platform body 1 of the present embodiment includes two upper beams, two lower beams, a plurality of platform struts and a plurality of platform bottom plates, the two upper beams are horizontally arranged side by side, two lower beams horizontally arranged side by side are respectively disposed under the two upper beams, the two lower beams are fixedly connected through the plurality of platform bottom plates, and each upper beam is fixedly connected with the corresponding lower beam through the plurality of platform struts. Other compositions and connection relationships are the same as those of the first, second, third, fourth, fifth, sixth or seventh embodiments.
Principle of operation
The working principle of the steel box girder suspension type movable construction operation platform of the present utility model is described with reference to fig. 1 to 6: the platform hanging piece 3 in the steel box girder suspension type movable construction operation platform is fixed on the upper edge steel plate of the steel box girder cantilever arm 4, the platform main body 1 is connected into the platform hanging piece 3 through the sliding guide rail 2 by utilizing the on-site gantry crane, and a brake plug is installed, so that the construction can be performed by personnel. After the construction of this region is accomplished, demolish the stopper, the staff stands on platform main part 1, holds wire rope, and wire rope's the other end is fixed at the arm tip of choosing, and the wire rope of pulling backward utilizes the pulley in the platform pendant 3, and the operation platform of forward slip is with the opposite platform pendant 3 of forward direction from the rear removal and install on the arm of choosing on the platform forward direction, and the pendant circulation installation, the platform can reach the purpose of continuous movement.
In order to ensure that the steel box girder cantilever arm is straight and smooth, the welding of the maintenance truck hanging piece and the longitudinal beam can only be performed after the cantilever arm is welded, and in order to complete the construction, the scaffold can only be repeatedly erected, a great amount of manpower and time are consumed, after the platform is adopted, the cost of repeatedly installing the scaffold is saved, and therefore the welding detection of the steel box girder, the installation of the longitudinal beam and the welding installation of the maintenance truck hanging piece can be efficiently, smoothly and safely completed within a specified construction period.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (8)
1. A steel box girder suspension type movable construction operation platform is characterized in that: the novel steel box girder lifting frame comprises a platform main body (1), two sliding guide rails (2) and a plurality of platform pendants (3), wherein the platform main body (1) is of a cuboid frame structure, the cross section of the platform main body (1) is U-shaped, two sliding guide rails (2) which are horizontally arranged are respectively arranged on two sides of the upper end of the platform main body (1) along the length direction of the platform main body, a plurality of vertically arranged platform pendants (3) are arranged between each sliding guide rail (2) and a steel box girder cantilever arm (4), each platform pendants (3) comprises a hanging part (31) and a pulley part (32), the upper end of each hanging part (31) is hung on an upper edge steel plate of the steel box girder cantilever arm (4), and the pulley part (32) is arranged at the lower end of each hanging part (31), and the pulley parts (32) are in sliding connection with the sliding guide rails (2).
2. The steel box girder suspension type movable construction operation platform according to claim 1, wherein: the cross section of the sliding guide rail (2) is I-shaped.
3. A steel box girder suspension type movable construction operation platform according to claim 2, wherein: the pulley portion (32) comprises a top plate (321), two side plates (322) and two pulleys (323), wherein the two side plates (322) which are vertically arranged are fixedly connected to the left side and the right side of the top plate (321) respectively, the two coaxially arranged pulleys (323) are rotatably arranged on the inner sides of the two side plates (322) respectively, and a sliding guide rail (2) is slidably inserted between the two pulleys (323).
4. A steel box girder suspension type movable construction operation platform according to claim 3, wherein: the distance between the two pulleys (323) is smaller than the width of the upper wing plate of the sliding guide rail (2).
5. The steel box girder suspension type movable construction operation platform according to claim 4, wherein: the thickness of the web plate in the middle of the sliding guide rail (2) is smaller than the interval distance between the two pulleys (323).
6. A steel box girder suspension type movable construction operation platform according to claim 1 or 5, wherein: the hanging part (31) comprises a C-shaped hook (311) and a stand column (312), the side opening of the C-shaped hook (311) is matched with the upper edge steel plate of the steel box girder cantilever arm (4), the lower end of the C-shaped hook (311) is fixedly connected with the upper end of the stand column (312), and the lower end of the stand column (312) is fixedly connected with the middle part of the upper end face of the top plate (321) of the pulley part (32).
7. The steel box girder suspension type movable construction operation platform according to claim 1, wherein: the plurality of platform pendants (3) on the left side and the right side are arranged in a pair of opposite directions.
8. A steel box girder suspension type movable construction operation platform according to claim 1 or 7, wherein: the platform main body (1) comprises two upper cross beams, two lower cross beams, a plurality of platform support posts and a plurality of platform bottom plates, wherein the two upper cross beams are horizontally arranged side by side, two lower cross beams horizontally arranged side by side are respectively arranged right below the two upper cross beams, the two lower cross beams are fixedly connected through the plurality of platform bottom plates, and each upper cross beam is fixedly connected with the lower cross beam corresponding to the lower side through the plurality of platform support posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321237399.6U CN219839967U (en) | 2023-05-19 | 2023-05-19 | Steel box girder suspension type movable construction operation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321237399.6U CN219839967U (en) | 2023-05-19 | 2023-05-19 | Steel box girder suspension type movable construction operation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219839967U true CN219839967U (en) | 2023-10-17 |
Family
ID=88301272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321237399.6U Active CN219839967U (en) | 2023-05-19 | 2023-05-19 | Steel box girder suspension type movable construction operation platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219839967U (en) |
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2023
- 2023-05-19 CN CN202321237399.6U patent/CN219839967U/en active Active
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