Hollow concrete column construction closed external hanging frame working platform

Abstract

The application relates to the technical field of power construction engineering construction, in particular to a hollow concrete column construction closed external hanging frame operation platform. The hollow concrete column construction closed external hanging frame operation platform is composed of a plurality of independent arc-shaped frame body units. The independent arc-shaped frame body unit comprises a plurality of main frames. Walkway plates are arranged between the main frames. Outer side connecting rods and inner side connecting rods are arranged on the inner and outer sides of the walkway plates. The walkway plates are welded with the inner and outer side connecting rods. The outer side connecting rods and the inner side connecting rods are connected with the adjacent main frames through bolts. The main frames are connected with the hollow concrete column through an attaching assembly. The main frame, the walkway plate and the connecting rod are welded. The attaching assembly is used for detachable connection between the main frame and the hollow concrete column. Up and down ladders are arranged between the multilayer walkway plates. The construction period is shortened, the manpower is saved, and the safety of workers in multilayer operation is ensured.

Description

Technical Field

[0001] This application relates to the field of power construction engineering technology, and in particular to a closed external hanging frame operation platform for the construction of hollow concrete columns. Background Technology

[0002] In the construction of large-scale thermal power plants, the air-cooled column serves as the core supporting structure of the direct air-cooling system, and its construction quality directly affects the stable operation of the turbine exhaust system. Currently, the industry commonly uses the traditional method of erecting full-span scaffolding as the construction platform, but this method has the following technical drawbacks:

[0003] The scaffolding erection process is lengthy and seriously affects the overall construction schedule;

[0004] Scaffolding erection requires a large number of people, all of whom are professional scaffolders, making it overly reliant on manpower.

[0005] The lack of integrated connection between the multi-level working platforms of the scaffolding results in relatively weak safety protection.

[0006] To address the technical challenges in the construction of existing large-scale thermal power plants, such as long scaffolding erection periods, a large number of workers required for scaffolding erection, and the lack of integrated connections between multi-level scaffolding work platforms, there is an urgent need to design a closed external scaffolding work platform for the construction of hollow concrete columns. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this application provides a closed external scaffolding operating platform for the construction of hollow concrete columns.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this application provides the following technical solution: a closed external scaffolding operating platform for hollow concrete column construction, the platform comprising several independent arc-shaped frame units, each arc-shaped frame unit including: several main frames, walkways between the main frames, outer connecting rods and inner connecting rods on the inner and outer sides of the walkways, the walkways being welded to the inner and outer connecting rods, the two ends of the outer and inner connecting rods being bolted to adjacent main frames, the main frames including outer vertical rods and inner vertical rods, horizontal support rods passing through the inner vertical rods on the outer vertical rods, and inclined support rods welded below the outer vertical rods passing through the inner vertical rods, the outer vertical rods and the inner vertical rods being welded together by longitudinal connecting rods, the horizontal support rods and inclined support rods being connected to the hollow concrete column by attachment components.

[0011] Preferably, the hollow concrete column construction enclosed external hanging frame operation platform is a four-part modular ring platform enclosed by four independent arc-shaped frame units.

[0012] Preferably, the bottom of the walkway slab is provided with a horizontal longitudinal support rod, and the two ends of the horizontal longitudinal support rod are welded to the outer connecting rod and the inner connecting rod, respectively.

[0013] Preferably, the walkway slabs are fixed in 4 layers, with a 2m spacing between the 4 layers. The upper layer of walkway slabs is used for concrete pouring, the middle two layers are used for rebar tying and formwork installation, and the lower layer is used for concrete repair.

[0014] Preferably, a connector is provided between adjacent independent arc-shaped frame units, and a rotating walkway connecting plate that is rotatably connected to the walkway slab is also provided.

[0015] Preferably, the connector is a steel strip with holes at both ends, which is fixed to the main frame of two adjacent independent arc-shaped frame units with bolts.

[0016] Preferably, an upper and lower ladder welded to the inner connecting rod is provided between the inner connecting rod and the outer connecting rod, and a passage hole is opened at the corresponding upper and lower ladder on the walkway plate. A rotating cover plate is provided above the passage hole, and the rotating cover plate is rotatably connected to the walkway plate.

[0017] Preferably, the attachment assembly includes: a bolt sleeve and bolt group pre-embedded in the hollow concrete column, a threaded bolt fixedly connected to the horizontal support rod, an anchoring channel steel provided on the inner side of the hollow concrete column, the bolt group passing through the anchoring channel steel to fix the anchoring channel steel to the hollow concrete column, the threaded bolt passing through the bolt sleeve to fix to the anchoring channel steel, an L-shaped bolt group passing through the hollow concrete column, and the inclined support rod connected to the L-shaped screw bolt.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this application provides a closed external scaffolding working platform for the construction of hollow concrete columns. The advantages of this utility model are as follows:

[0020] By using the welding method of main frame and walkway panels, the independent arc-shaped frame units can move as a whole, thus shortening the construction period compared to that of scaffolding.

[0021] The main frame and the hollow concrete column are connected by attachment components in a detachable manner, which allows the closed external scaffolding working platform for the construction of hollow concrete columns to be fixed at any level of the hollow concrete column by a crane. Compared with the continuous upward construction of scaffolding, it saves more manpower and material resources.

[0022] By installing ladders between the multiple walkway slabs, the safety of workers when working on multiple levels is ensured. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main view of an independent arc-shaped frame unit;

[0024] Figure 2 This is a schematic diagram of the components of a single mainframe;

[0025] Figure 3 A top view schematic diagram of the enclosed external scaffolding work platform for the construction of hollow concrete columns;

[0026] Figure 4 This is a schematic diagram of the attachment components.

[0027] The components include: 1. Main frame; 101. Outer vertical rod; 102. Inner vertical rod; 103. Longitudinal connecting rod; 104. Horizontal support rod; 105. Diagonal support rod; 2. Attachment components; 201. Bolt sleeve; 202. Screw bolt; 203. Bolt group; 204. L-shaped screw; 205. Anchoring channel steel; 3. Walkway panel; 4. Rotating walkway connecting plate; 5. Connector; 6. Rotating cover plate; 7. Upper and lower ladders; 8. Enclosed protective railing; 9. Horizontal and longitudinal support rods; 10. Outer connecting rod; 11. Inner connecting rod. Detailed Implementation

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", are generally in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0029] Please see Figure 1-4 This utility model provides a technical solution for an enclosed external scaffolding work platform for the construction of hollow concrete columns:

[0030] according to Figure 1 , Figure 2As shown, a closed external scaffolding work platform for the construction of hollow concrete columns is composed of several independent arc-shaped frame units. Each independent arc-shaped frame unit includes: several main frames 1, walkway plates 3 are provided between the main frames 1, and outer connecting rods 10 and inner connecting rods 11 are provided on the inner and outer sides of the walkway plates 3. The walkway plates 3 are welded to the inner and outer connecting rods. The two ends of the outer connecting rods 10 and inner connecting rods 11 are connected to the adjacent main frames 1 by bolts. Each main frame 1 includes an outer vertical rod 101, an inner vertical rod 102, a horizontal support rod 104 provided on the outer vertical rod 101 that passes through the inner vertical rod 102, and an inclined support rod 105 welded below the outer vertical rod 101 that passes through the inner vertical rod 102. The outer vertical rod 101 and the inner vertical rod 102 are welded together by a longitudinal connecting rod 103. The horizontal support rod 104 and the inclined support rod 105 are connected to the hollow concrete column by an attachment component 2 for fixing the independent arc-shaped frame units.

[0031] like Figure 3 As shown, preferably, in this embodiment of the application, the hollow concrete column construction enclosed external hanging frame operation platform is a four-part modular ring platform enclosed by four independent arc-shaped frame units.

[0032] Continue to refer to Figure 1 The bottom of the walkway slab 3 is provided with a horizontal longitudinal support rod 9. The two ends of the horizontal longitudinal support rod 9 are welded to the outer connecting rod 10 and the inner connecting rod 11 respectively, for further support of the walkway slab 3.

[0033] Preferably, the walkway slab 3 is fixed in 4 layers, with a layer spacing of 2m between the 4 layers. The upper walkway slab is used for concrete pouring, the middle two walkway slabs are used for steel bar binding and formwork installation, and the lower walkway slab is used for concrete repair.

[0034] The walkway slab is made of patterned steel plate.

[0035] A connector 5 is provided between adjacent independent arc-shaped frame units to connect two adjacent independent arc-shaped frame units. The two adjacent independent arc-shaped frame units are also provided with a rotating walkway connecting plate 4 that is rotatably connected to the walkway plate 3. The rotating walkway connecting plate 4 can rotate around the walkway plate 3 to cover the gap between the independent arc-shaped frame units.

[0036] The connector 5 is a steel strip with holes at both ends, which is fixed to the main frame 1 of two adjacent independent arc-shaped frame units with bolts.

[0037] The independent arc-shaped frame unit is surrounded by a closed protective railing 8, and the closed protective railing 8 is bolted to the independent arc-shaped frame unit.

[0038] A ladder 7, welded to the inner connecting rod 11, is provided between the inner connecting rod 11 and the outer connecting rod 10. A passage hole is provided on the walkway 3 corresponding to the ladder. A rotating cover plate 6 is provided above the passage hole. The rotating cover plate 6 is rotatably connected to the walkway 3. When workers pass through the ladder 7, they can rotate the rotating cover plate 6 to the top of the walkway 3 to pass through. When workers need to carry out construction on the current floor, they can rotate the rotating cover plate 6 to the top of the passage hole to close the passage hole and prevent people from falling.

[0039] It should be noted that, in this embodiment of the application, the upper and lower ladders 7 can also be welded to one side of the outer connecting rod 10, which can also achieve the above-mentioned technical effects.

[0040] like Figure 4 As shown, the attachment component 2 includes: a bolt sleeve 201 and a bolt group 203 pre-embedded in the hollow concrete column; a threaded bolt 202 fixedly connected to the horizontal support rod 104; an anchoring channel steel 205 provided on the inner side of the hollow concrete column; the bolt group 203 passes through the anchoring channel steel 205 to fix the anchoring channel steel 205 to the hollow concrete column; the threaded bolt 202 passes through the bolt sleeve 201 to fix the anchoring channel steel 205; an L-shaped bolt 204 passes through the hollow concrete column; and the inclined support rod 105 is bolted to the L-shaped bolt 204 for fixing and supporting the main frame 1.

[0041] It should be noted that while installing the formwork for the air-cooled concrete column, the bolt sleeve 201 is installed and fixed, and poured into the concrete. After the first layer of concrete in the hollow concrete column is poured and reaches a certain strength, the formwork is removed, and the independent arc-shaped frame unit can be installed and connected to the hollow concrete column through the attachment component 2.

[0042] When carrying out construction work on three or more floors, the first independent arc-shaped frame unit needs to be disassembled first. After the independent arc-shaped frame unit is lifted and subjected to force by a crane, the connecting parts 5 on both sides and the rotating walkway connecting plate 4 are separated from the adjacent independent arc-shaped frame unit. Then, the threaded bolt 202 and L-bolt 204 are loosened so that the first independent arc-shaped frame unit can move independently.

[0043] Using a crane, the first independent arc-shaped frame unit, after being separated, is lifted to the third floor and installed using the same installation method as the first floor. At the same time, the other independent arc-shaped frame units are installed upwards using the same method as the first independent arc-shaped frame unit.

Claims

1. A construction closed hanging frame operation platform for hollow concrete column, which is composed of several independent arc-shaped frame body units, characterized in that, The independent arc-shaped frame unit includes: several main frames (1), walkways (3) are provided between the main frames (1), and outer connecting rods (10) and inner connecting rods (11) are provided on the inner and outer sides of the walkways (3). The walkways (3) are welded to the inner and outer connecting rods. The two ends of the outer connecting rods (10) and the inner connecting rods (11) are connected to the adjacent main frames (1) by bolts. The main frame (1) includes an outer vertical rod (101), an inner vertical rod (102), and an outer vertical rod (103). A horizontal support rod (104) is provided on the side vertical rod (101) and passes through the inner vertical rod (102). An inclined support rod (105) is welded below the outer vertical rod (101) and passes through the inner vertical rod (102). The outer vertical rod (101) and the inner vertical rod (102) are welded together by a longitudinal connecting rod (103). The horizontal support rod (104) and the inclined support rod (105) are connected to the hollow concrete column by an attachment assembly (2).

2. The construction enclosure scaffolding work platform for hollow concrete column according to claim 1, characterized in that, The hollow concrete column construction enclosed external hanging frame operation platform is a four-part modular ring platform enclosed by four independent arc frame units.

3. The construction enclosure scaffolding work platform of hollow concrete columns according to claim 1 or 2, characterized in that, The bottom of the walkway slab (3) is provided with a horizontal longitudinal support rod (9), and the two ends of the horizontal longitudinal support rod (9) are welded to the outer connecting rod (10) and the inner connecting rod (11) respectively.

4. The construction enclosure scaffolding work platform for hollow concrete column according to claim 3, characterized in that, The walkway slab (3) is fixed in 4 layers, and the spacing between the 4 layers of walkway slabs is 2m.

5. The construction enclosure scaffolding work platform of hollow concrete columns according to claim 4, characterized in that, Connectors (5) are provided between adjacent independent arc-shaped frame units, and two adjacent independent arc-shaped frame units are also provided with rotating walkway connecting plates (4) that are rotatably connected to the walkway plate (3).

6. The construction enclosure scaffolding work platform of hollow concrete columns according to claim 5, characterized in that, The connector (5) is a steel strip with holes at both ends, which is fixed to the main frame (1) of two adjacent independent arc-shaped frame units with bolts.

7. The construction enclosure outrigger deck platform for hollow concrete column construction of claim 6, wherein, The independent arc-shaped frame unit is surrounded by a closed protective railing (8), and the closed protective railing (8) is bolted to the independent arc-shaped frame unit.

8. The construction enclosure outrigger deck platform for hollow concrete column construction of claim 7, wherein, The inner connecting rod (11) and the outer connecting rod (10) are provided with an upper and lower ladder (7) welded on the inner connecting rod (11). The walkway plate (3) is provided with a passage hole corresponding to the upper and lower ladder. A rotating cover plate (6) is provided above the passage hole. The rotating cover plate (6) is rotatably connected to the walkway plate (3).

9. The construction enclosure outrigger deck platform of hollow concrete columns according to claim 8, wherein, The attachment component (2) includes: a bolt sleeve (201) and a bolt group (203) pre-embedded in the hollow concrete column, a threaded bolt (202) fixedly connected to the horizontal support rod (104), and an anchoring channel steel (205) provided on the inner side of the hollow concrete column. The bolt group (203) passes through the anchoring channel steel (205) to fix the anchoring channel steel (205) on the hollow concrete column. The threaded bolt (202) passes through the bolt sleeve (201) and is fixed on the anchoring channel steel (205). An L-shaped bolt (204) passes through the hollow concrete column. The inclined support rod (105) is bolted to the L-shaped bolt (204).

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