Working platform for large free face construction

Abstract

The utility model belongs to the technical field of free face construction, and particularly relates to a working platform for large free face construction, which comprises a support frame body, a platform bottom plate arranged at the top of the support frame body and a protective barrier arranged on the peripheral side of the platform bottom plate, and a circle of protective baffle is arranged at the bottom of the protective barrier. The supporting frame body comprises a plurality of door-shaped supports evenly arranged on the two main beams, a plurality of purlines are evenly laid on the door-shaped supports in the length direction of the door-shaped supports, reinforcing assemblies are arranged between the door-shaped supports, and the platform bottom plate is arranged on the purlines. The n-shaped support comprises two stand columns arranged on the two main beams respectively and a cross beam connected between the top ends of the two stand columns. The bridge crane is reasonable in structural design and high in adaptability, the door-shaped supports are arranged on the bridge crane main beam, the platform bottom plate is arranged on the door-shaped supports to serve as a construction platform, construction efficiency can be effectively improved, manpower requirements are reduced, the construction period is shortened, and the stability and the bearing capacity of the construction platform are improved.

Description

Technical Field

[0001] This utility model belongs to the field of construction technology for open-air surfaces, specifically relating to a working platform for construction of large open-air surfaces. Background Technology

[0002] In my country, the installation of the steel grid structure for the roof arch and the lighting installation for the powerhouse in pumped-storage power stations typically require work at height. Since the height from the roof arch to the pump pit is approximately fifty meters, the working environment at height is complex, posing significant safety risks, and transporting installation materials to the top is a major challenge. Traditional construction methods mainly rely on scaffolding erected on bridge cranes, which are inefficient and require substantial manpower and time. Furthermore, traditional construction equipment suffers from poor stability and is inconvenient to operate at heights, making it difficult to meet the requirements of modern large-scale aerial work. Therefore, a new type of working platform needs to be designed to address these issues and improve construction efficiency and safety. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a working platform for large-scale open-air construction, which addresses the shortcomings of the prior art. The platform has a reasonable structural design and strong adaptability. Multiple portal supports are set on the main beam of the bridge crane, and a platform base plate is set on the top of the portal supports as a construction platform. This can effectively improve construction efficiency, reduce manpower requirements, shorten the construction cycle, and improve the stability and load-bearing capacity of the construction platform.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a working platform for construction of large open-air surfaces, characterized in that: it includes a support frame, a platform base plate set on the top of the support frame, and a protective railing set around the platform base plate, wherein a protective baffle is provided at the bottom of the protective railing;

[0005] The support frame includes multiple portal supports evenly arranged on the two main beams of the bridge crane. Multiple purlins are evenly laid on the multiple portal supports along their length direction. Reinforcing components are arranged between the portal supports. The platform base plate is arranged on the multiple purlins.

[0006] The portal support includes two columns respectively set on two main beams and a crossbeam connecting the tops of the two columns. The reinforcement component includes an inter-column support set between the columns of two adjacent portal supports and an inter-beam tie rod set between the crossbeams of two adjacent portal supports.

[0007] The guardrail includes detachable uprights mounted on purlins and horizontal connecting rods for connecting multiple uprights together.

[0008] The above-mentioned working platform for large-scale open-air construction is characterized in that: multiple main beam steel plates are reserved on the main beam for the installation of columns, a bottom connecting plate is provided at the bottom of the column, and the main beam steel plates and the bottom connecting plate are connected by bolts.

[0009] The above-mentioned work platform for large-scale open-air construction is characterized in that: the crossbeam and the column are fixed together by connecting bolts.

[0010] The above-mentioned working platform for large-scale open-air construction is characterized in that: the inter-column support is a scissor brace welded between two columns, and the inter-beam tie rod includes multiple scissor-type tie rods welded between two crossbeams.

[0011] The above-mentioned working platform for large-scale open-air construction is characterized in that the purlins are laid at a spacing of 400mm to 450mm.

[0012] The above-mentioned work platform for large-scale open-air construction is characterized in that: the purlins are welded and fixed to the crossbeams.

[0013] The above-mentioned working platform for large-scale open-air construction is characterized in that: a connecting sleeve for inserting uprights is fixed on the purlin, and the lower end of the upright is installed in the connecting sleeve by a pin.

[0014] This utility model has the following advantages compared with the prior art:

[0015] 1. This utility model utilizes two main beams, sets up multiple portal-shaped supports on the two main beams, and sets up a platform base plate above the portal-shaped supports as a construction platform, which can effectively improve construction efficiency, reduce manpower requirements, and shorten the construction cycle.

[0016] 2. This utility model can effectively improve the stability and load-bearing capacity of the construction platform by setting purlins between multiple portal supports and the platform base plate, and by setting reinforcement components between the portal supports, so as to meet the requirements of modern large-scale open-air construction.

[0017] 3. This utility model has strong adaptability and can be applied to a variety of different construction occasions and conditions.

[0018] In summary, this utility model has a reasonable structural design and strong adaptability. By setting multiple portal supports on the main beam of the bridge crane and setting a platform base plate above the portal supports as a construction platform, it can effectively improve construction efficiency, reduce manpower requirements, shorten the construction cycle, and improve the stability and load-bearing capacity of the construction platform.

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 Enlarged view of point A.

[0022] Figure 3 This is a schematic diagram of the structure of this utility model after removing the guardrails and platform base.

[0023] Figure 4 This is a schematic diagram showing the positional relationship between the support frame and the platform base plate of this utility model.

[0024] Figure 5 This is a structural schematic diagram of the crossbeam and inter-beam support of this utility model.

[0025] Figure 6 This is a schematic diagram of the connection structure of the crossbeam, purlin, and diagonal brace of this utility model.

[0026] Figure 7 This is a schematic diagram of the connection structure between the beam support and the crossbeam of this utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the pad block of this utility model.

[0028] Figure 9 for Figure 8 The right view.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1—Main beam; 2—Main beam steel plate; 3—Bottom connecting plate;

[0031] 4—Column; 5—Intercolumn bracing; 6—Purifier;

[0032] 7—Crossbeam; 8—Inter-beam tie rod; 9—Platform base plate;

[0033] 10—Protective barrier; 11—Guardrail; 111—Upright post;

[0034] 112—Horizontal connecting rod; 12—Connecting sleeve; 13—Diagonal brace;

[0035] 14—Connecting steel plate; 15—Locking nut; 16—Push block base plate;

[0036] 17—Curved plate. Detailed Implementation

[0037] like Figures 1 to 5As shown, this utility model includes a support frame, a platform base plate 9 set on the top of the support frame, and a protective railing 11 set around the platform base plate 9. A protective baffle 10 is provided at the bottom of the protective railing 11.

[0038] The support frame includes multiple portal supports evenly arranged on the two main beams 1 of the bridge crane. Multiple purlins 6 are evenly laid on the multiple portal supports along their length direction. Reinforcing components are provided between the portal supports. The platform base plate 9 is set on the multiple purlins 6.

[0039] The portal support includes two columns 4 respectively set on two main beams 1 and a crossbeam 7 connected between the tops of the two columns 4. The reinforcement component includes an inter-column support 5 set between the columns 4 of two adjacent portal supports and an inter-beam tie rod 8 set between the crossbeams 7 of two adjacent portal supports.

[0040] The guardrail 11 includes detachable uprights 111 mounted on purlins 6 and horizontal connecting rods 112 for connecting multiple uprights 111 together.

[0041] In actual use, by using two main beams 1, setting multiple portal supports on the two main beams 1, and setting a platform base plate 9 above the portal supports as a construction platform, the construction efficiency can be effectively improved, the manpower requirement can be reduced, and the construction cycle can be shortened.

[0042] It should be noted that by setting purlins 6 between multiple portal supports and the platform base plate 9, and by setting reinforcement components between the portal supports, the stability and load-bearing capacity of the construction platform can be effectively improved to meet the requirements of modern large-scale open-air surface construction.

[0043] In practice, by setting up guardrails 11 around the perimeter of the platform base plate 9 and a protective baffle 10 at the bottom of the guardrails 11, the safety of the construction platform can be effectively improved.

[0044] In this embodiment, the main beam 1 has multiple main beam steel plates 2 reserved for the installation of the columns 4, and the bottom of the columns 4 is provided with a bottom connecting plate 3. The main beam steel plates 2 and the bottom connecting plate 3 are connected by bolts.

[0045] In this embodiment, the crossbeam 7 and the column 4 are fixed together by connecting bolts.

[0046] like Figure 4 and Figure 5 As shown, in this embodiment, the column support 5 is a scissor brace welded between two columns 4, and the beam tie rod 8 includes multiple scissor-type tie rods welded between two beams 7.

[0047] In this embodiment, the purlin spacing is 400mm to 450mm.

[0048] In this embodiment, the purlin 6 is welded and fixed to the crossbeam 7.

[0049] In this embodiment, a connecting sleeve 12 for inserting the upright 111 is fixed on the purlin 6, and the lower end of the upright 111 is installed in the connecting sleeve 12 by a pin.

[0050] like Figure 6 As shown, in this embodiment, the crossbeam 7 is symmetrically provided with diagonal braces 13 on both sides to support the purlin 6. The diagonal braces 13 include a straight section connected to the crossbeam 7 and a horizontal section arranged close to the bottom of the purlin 6.

[0051] In practice, column 4 is a steel column, beam 7 is a steel beam, column support 5 is made of 50mm×50mm×5mm angle steel, and beam tie rod 8 is made of φ16 round steel.

[0052] In practice, the platform base plate 9 is made of 1220mm×2440mm×15mm building template, and the protective baffle 10 is a kickboard laid at a height of 200mm from the bottom of the protective railing 11.

[0053] In practice, the length direction of the crossbeam 7 is perpendicular to the length direction of the main beam 1, and the purlins 6 are arranged along the length direction of the main beam 1.

[0054] In practice, the number of portal supports is five. When setting up the inter-column supports 5 and the inter-beam tie rods 8, the inter-column supports 5 and the inter-beam tie rods 8 are only set between the first two portal supports and the last two portal supports.

[0055] In practice, both the crossbeam 7 and the purlin 6 are I-beams. Both sides of the crossbeam 7 are welded with connecting steel plates 14 for connecting the diagonal braces 13. The lower end of the diagonal brace 13 is connected to the connecting steel plate 14 by bolts, and the horizontal section of the diagonal brace 13 is welded to the bottom of the purlin 6.

[0056] like Figures 7 to 9As shown, in specific implementation, when connecting the beam tie rod 8 to the crossbeam 7, multiple through holes are opened on the web of the crossbeam 7 for the ends of the beam tie rod 8 to pass through. At the same time, each segment of the beam tie rod 8 is provided with a threaded connection segment at its end. Then, the threaded connection segment of the beam tie rod 8 passes through the corresponding through hole and is locked by a locking nut 15. A pad is provided between the locking nut 15 and the web of the crossbeam 7. The pad includes a pad base plate 16 that is closely attached to the web of the crossbeam 7 and two arc-shaped plates 17 that are respectively set on one side of the pad base plate and used to press against the locking nut 15. The arc-shaped plates 17 are semi-circular and perpendicular to the pad base plate 16. The pad base plate 16 is provided with a through hole for the threaded connection segment of the beam tie rod 8 to pass through. The through hole is located between the two arc-shaped plates 17.

[0057] In actual use, multiple main beam steel plates 2 are reserved on the main beam 1. The length of the columns 4 is cut according to the required height on site. The columns 4 are hoisted by a truck crane and connected and fixed to the main beam steel plates 2 with bolts. The crossbeams 7 are installed on the top of the columns 4 with bolts. After the crossbeams 7 are installed, in order to increase the support and tension between the columns 4 and the crossbeams 7, column supports 5 are added between the columns 4. In order to increase the tension between the crossbeams, beam tie rods 8 are added between the crossbeams. Purlins 6 are laid and welded on the crossbeams 7. After the purlins 6 and the crossbeams 7 are welded, the weld is subjected to non-destructive testing (PT test) to ensure that there are no defects. Then, the platform base plate 9 is laid on the purlins 6 and guardrails 11 are installed to ensure construction safety.

[0058] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A working platform for construction on large open-air surfaces, characterized in that: It includes a support frame, a platform base plate (9) set on top of the support frame, and a guardrail (11) set around the platform base plate (9). A guardrail (10) is provided at the bottom of the guardrail (11). The support frame includes multiple portal supports evenly arranged on the two main beams (1) of the bridge machine. Multiple purlins (6) are evenly laid on the multiple portal supports along their length direction. Reinforcing components are provided between the portal supports. The platform base plate (9) is set on the multiple purlins (6). The portal support includes two columns (4) respectively set on two main beams (1) and a crossbeam (7) connected between the tops of the two columns (4). The reinforcement component includes column support (5) set between the columns (4) of two adjacent portal supports and beam tie rod (8) set between the crossbeams (7) of two adjacent portal supports. The guardrail (11) includes a detachable upright (111) mounted on a purlin (6) and a horizontal link (112) for connecting multiple uprights (111) together.

2. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The main beam (1) has multiple main beam steel plates (2) reserved for the installation of columns (4). The bottom of the column (4) is provided with a bottom connecting plate (3). The main beam steel plates (2) and the bottom connecting plate (3) are connected by bolts.

3. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The crossbeam (7) and the column (4) are fixed together by connecting bolts.

4. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The column bracing (5) is a scissor bracing welded between two columns (4), and the beam tie rod (8) includes multiple scissor tie rods welded between two beams (7).

5. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The purlins (6) are laid at a spacing of 400mm to 450mm.

6. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The purlin (6) is welded and fixed to the crossbeam (7).

7. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The purlin (6) is fixed with a connecting sleeve (12) for inserting the upright (111), and the lower end of the upright (111) is installed in the connecting sleeve (12) by a pin.

8. A working platform for large-scale open-air construction as described in claim 1, characterized in that: The crossbeam (7) is symmetrically provided with diagonal braces (13) to support the purlin (6) on both sides. The diagonal braces (13) include a straight section connected to the crossbeam (7) and a horizontal section arranged close to the bottom of the purlin (6).

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