Large-diameter cylinder top cover formwork supporting system

Abstract

The utility model provides a large-diameter barrel top cover formwork supporting system. The large-diameter barrel top cover formwork supporting system comprises a barrel wall, a cantilever steel beam, a ring beam, a radiation beam, a drum ring, an upper pulling piece and a lower pulling piece. Wherein the cantilever steel beams are arranged at intervals along the circumference of the cylinder wall; the ring beam is arranged above the cantilever steel beam; the central axis of the drum ring coincides with the central axis of the cylinder wall. One end of the radiation beam is connected with the drum ring and the other end is connected with the ring beam; the lower tie piece is connected with the drum ring and the radiation beam; and the upper tie piece is connected with the radiation beam and the cylinder wall. According to the utility model, the drum ring, the radiation beam and the lower tie piece are connected to form a suspended fulcrum, so that the span of the radiation beam is reduced, the manufacturing cost and the construction difficulty are reduced, the risk that the radiation beam is too long and the middle part of the radiation beam is downwarped is reduced, and the safety performance of the whole structure is improved; the force transmission path is scientific and reasonable, and the safety of the whole structure is ensured; construction is easy and convenient, connection is stable, and a stable supporting system is established for follow-up construction of the barrel top cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylinder construction, in particular to a large-diameter cylinder top cover template support system. Background Art

[0002] During the construction of large-diameter cylinders, the top formwork is difficult to construct. Traditionally, there are two methods: one uses large inclined plates as support points for vertical poles, with multiple steel sections placed at the intersection of the top plate and the funnel inclined plate wall. This approach involves high-support formwork, densely packed rods, and heavy weight, making it both unsafe and uneconomical. The second method uses Bailey beams or H-shaped steel structures as support systems. Due to the large span of large-diameter cylinders, large-cross-section support beams are required. These disadvantages include the need for large holes in the cylinder wall, which is unsightly and inconvenient. The holes clash with the cylinder reinforcement, making it difficult to avoid them. Second, the components are heavy and large, requiring Bailey beams to accommodate the spatial forces of the cylinder structure, making fabrication complex and costly. Using H-shaped steel as support requires a large number of components, resulting in complex construction and complex specifications. Third, the cost of this measure is high, requiring a large-tonnage crane to install the support system, which is labor-intensive and material-intensive. Furthermore, the support device is a disposable structure and cannot be recycled. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a large-diameter cylinder top cover template support system, which is particularly suitable for cylinders with greater heights, reduces production costs and construction difficulty, and improves construction efficiency and safety.

[0004] The technical solution adopted by the utility model is: a large-diameter cylinder top cover template support system, including cylinder wall, cantilever steel beam, ring beam, radial beam, drum ring, upper tie piece and lower tie piece;

[0005] The cantilevered steel beams are arranged at intervals along the circumference of the cylinder wall;

[0006] The ring beam is arranged on the upper part of the cantilevered steel beam and is connected end to end along the circumference of the cylinder wall;

[0007] The central axis of the drum ring coincides with the central axis of the cylinder wall;

[0008] One end of the radiation beam is connected to the upper part of the drum ring, and the other end is connected to the ring beam;

[0009] The lower end of the lower anchor is connected to the lower part of the drum ring, and the upper end is connected to the end of the radiation beam close to the cylinder wall;

[0010] The lower end of the upper anchor is connected to the end of the radiation beam close to the ring beam, and the upper end is connected to the cylinder wall;

[0011] The upper end of the upper anchor is higher than the upper end of the lower anchor.

[0012] Furthermore, the cylinder wall is provided with a reserved hole, and the cantilevered steel beam is inserted into the reserved hole.

[0013] Furthermore, the ring beam is an arc-shaped structure, and its curvature corresponds to the curvature of the cylinder wall.

[0014] Furthermore, the radiation beam extends horizontally along the radial direction of the cylinder wall.

[0015] Furthermore, the radiation beam includes two support beams and a connecting block, and the connecting block is arranged at intervals between the two support beams.

[0016] Furthermore, the drum hoop includes an upper circular ring, a lower circular ring and a support rod, both ends of the support rod are respectively connected to the upper circular ring and the lower circular ring, and a plurality of the support rods are arranged at intervals.

[0017] Furthermore, a hook is provided at the lower end of the upper anchor, and a connection hole matching the hook is provided at one end of the radiation beam close to the cylinder wall; the cylinder wall includes vertical steel bars, and the high end of the upper anchor is connected to the vertical steel bars.

[0018] Furthermore, the lower circular ring is circumferentially spaced apart with pull rings, and both ends of the lower anchor are provided with the pull hooks, the pull hook at the lower end of the lower anchor is connected to the pull ring, and the pull hook at the high end of the lower anchor is connected to the other connecting hole at one end of the radiation beam close to the cylinder wall.

[0019] Furthermore, it also includes a springboard and a scaffolding, wherein the springboard is fully laid on the upper part of the radiation beam, and the scaffolding is erected on the upper part of the springboard.

[0020] The advantages and positive effects of the utility model are:

[0021] (1) By connecting the drum ring, the radial beam and the lower anchor to form a suspended fulcrum, the span of the radial beam is reduced, and the production cost and construction difficulty are reduced;

[0022] (2) The radiation beam extends radially along the cylinder wall, and its length is less than the radius of the cylinder wall, which reduces the risk of the radiation beam being too long and deflecting in the middle, and improves the safety performance of the overall structure;

[0023] (3) By providing a lower tie piece, the drum ring is more firmly fixed to the radiation beam;

[0024] (4) By setting up upper anchors, cantilevered steel beams and radial beams, the pressure load borne by the radial beams is effectively transferred to the cylinder wall. The force transmission path is scientific and reasonable, ensuring the safety of the overall structure;

[0025] (5) The construction is simple, which effectively improves the construction efficiency; the connection is stable, which establishes a solid support system for the subsequent cylinder top cover construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0027] Figure 2 It is a cross-sectional schematic diagram of a specific embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the cylinder wall connection portion of a specific embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the radiation beam structure of a specific embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the drum hoop structure of a specific embodiment of the utility model;

[0031] Figure 6 This is a schematic diagram of the drum hoop connection portion of a specific embodiment of the present utility model;

[0032] Figure 7 It is a schematic diagram of the use of a specific embodiment of the utility model.

[0033] In the picture:

[0034] 10. Cylinder wall 11. Vertical reinforcement 20. Cantilevered steel beam

[0035] 30, ring beam 40, radial beam 41, support beam

[0036] 42, connecting block 50, drum hoop 51, upper ring

[0037] 52, lower ring 53, support rod 54, pull ring

[0038] 55, strengthening brace 60, lower anchor 61, hook

[0039] 70. Upper anchor 80. Springboard DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0041] like Figure 1As shown, the utility model proposes a large-diameter cylinder top cover formwork support system, including a cylinder wall 10, a cantilevered steel beam 20, a ring beam 30, a radial beam 40, a drum ring 50, an upper anchor 70 and a lower anchor 60; wherein, the cantilevered steel beam 20 is arranged at intervals along the circumference of the cylinder wall 10; the ring beam 30 is arranged on the upper part of the cantilevered steel beam 20, and is connected end to end along the circumference of the inner wall of the cylinder wall 10; the central axis of the drum ring 50 coincides with the central axis of the cylinder wall 10; one end of the radial beam 40 is connected to the upper part of the drum ring 50, and the other end is connected to the ring beam 30; the lower end of the lower anchor 60 is connected to the lower part of the drum ring 50, and the high end is connected to the end of the radial beam 40 close to the cylinder wall 10; the lower end of the upper anchor 70 is connected to the end of the radial beam 40 close to the ring beam 30, and the high end is connected to the cylinder wall 10; the high end of the upper anchor 70 is higher than the high end of the lower anchor 60.

[0042] Through the above technical solution, by connecting the drum ring 50, the radiation beam 40 and the lower anchor 60 to form a suspended fulcrum, the span of the radiation beam 40 is reduced, the production cost and construction difficulty are reduced, and the risk of the radiation beam 40 being too long and deflecting in the middle is reduced; at the same time, the tensile characteristics of the upper anchor 70 are fully utilized, so that the pressure load borne by the radiation beam 40 is effectively transmitted to the cylinder wall 10 through the upper anchor 70, the cantilever steel beam 20 and the radiation beam 40, ensuring the safety of the overall structure, improving construction efficiency, and facilitating the subsequent construction of the cylinder top cover using the radiation beam 40 as a support system.

[0043] Furthermore, if Figure 2 、 Figure 3 As shown, the cantilever steel beam 20 is fixed to the cylinder wall 10 through a square box body. The square box body is embedded in the concrete of the cylinder wall 10 during the construction of the cylinder wall 10 and is connected to the structural steel bars of the cylinder wall 10, so that a reserved hole is formed after the cylinder wall 10 is poured. The cross-sectional shape of the cantilever steel beam 20 matches the reserved hole. One end of the cantilever steel beam 20 is inserted into the reserved hole and welded to the square box body, so that it is not easy to loosen or slip off. The other end of the cantilever steel beam 20 is suspended in the air, and its length extends radially toward the inside of the cylinder wall 10. Its length is greater than the width of the ring beam 30, which is convenient for subsequently fixing the ring beam 30 to the cantilever steel beam 20. Several cantilever steel beams 20 are arranged at intervals along the circumference of the cylinder wall 10, and their upper end faces are arranged in the horizontal direction and are all at the same elevation.

[0044] Furthermore, if Figure 2 、 Figure 3 As shown, the ring beam 30 is an arc-shaped structure, the curvature of which corresponds to the curvature of the cylinder wall 10 , and is fixed to the cantilevered steel beam 20 by welding. The upper end surface of the ring beam 30 is horizontal, and its flatness meets the installation requirements of the radiation beam 40 .

[0045] Furthermore, the drum hoop 50 has an upper part and a lower part arranged in the vertical direction, and its height is matched with the ring beam 30. One end of the radiating beam 40 is connected to the ring beam 30, and the other end is connected to the upper part of the drum hoop 50; preferably, the radiating beam 40 is constructed to extend horizontally along the radial direction of the cylinder wall 10, and is evenly spaced between the drum hoop 50 and the ring beam 30; since the central axis of the drum hoop 50 coincides with the central axis of the cylinder wall 10, this technical solution can ensure that the radiating beams 40 connected to the drum hoop 50 and the ring beam 30 are all subjected to balanced force, thereby ensuring the safety of the overall structure.

[0046] Specifically, one end of the radiation beam 40 is welded to the upper surface of the ring beam 30 , and the other end is welded to the upper portion of the drum ring 50 .

[0047] Furthermore, if Figure 4 As shown, the radiation beam 40 includes two support beams 41 and a connecting block 42. The connecting block 42 is arranged at intervals between the two support beams 41, so that the two support beams 41 maintain a fixed distance, which is beneficial to enhancing the overall stability of the radiation beam 40 and ensuring that each radiation beam 40 is subjected to balanced force; preferably, the connecting blocks 42 are evenly and spaced apart along the length direction of the radiation beam 40.

[0048] Furthermore, if Figure 5 As shown, the drum hoop 50 includes an upper circular ring 51, a lower circular ring 52 and a support rod 53. The two ends of the support rod 53 are respectively connected to the upper circular ring 51 and the lower circular ring 52, and several support rods 53 are arranged at intervals; specifically, the upper circular ring 51 is connected to the radiation beam 40, the lower circular ring 52 is connected to the lower end of the lower anchor 60, and the high end of the lower anchor 60 is connected to the other end of the radiation beam 40, so that the drum hoop 50, the radiation beam 40 and the lower anchor 60 form an integral force-bearing structure with good stability.

[0049] Specifically, to ensure sufficient rigidity of the drum hoop 50, several diagonal reinforcing braces 55 are connected between the upper and lower rings 51, 52, and / or horizontal connecting braces are provided on the upper and / or lower rings 51 and 52, respectively. The diagonal reinforcing braces 55 and / or horizontal connecting braces are evenly spaced and arranged to ensure balanced forces across the drum hoop 50, preventing deformation and improving overall structural stability.

[0050] In the present application, the height and diameter of the drum ring 50 can be set according to the diameter of the cylinder wall 10 and the use requirements, and are not limited thereto; preferably, as Figure 5 As shown, the upper ring 51 and the lower ring 52 of the drum hoop 50 have the same diameter.

[0051] Furthermore, if Figure 3As shown, the lower end of the upper anchor 70 and the high end of the lower anchor 60 are both provided with hooks 61, and the end of the radiation beam 40 close to the cylinder wall 10 is provided with connection holes respectively cooperating with the above-mentioned hooks 61; so that the upper anchor 70 and the lower anchor 60 can be easily installed on the radiation beam 40, while ensuring stability and improving construction efficiency.

[0052] Specifically, the diameter of the connection hole of the radiation beam 40 is slightly larger than the diameter of the hook 61. During construction, the hook 61 is first passed through the connection hole. After the upper anchor 70 and the lower anchor 60 are installed, the hook 61 is welded to the radiation beam 40 to make the upper anchor 70 and the lower anchor 60 more firmly fixed on the radiation beam 40.

[0053] Preferably, the upper anchor 70 and the lower anchor 60 are respectively fixed on different support beams 41 of the radiation beam 40 .

[0054] Furthermore, the number of the radiation beams 40 , the upper anchors 70 and the lower anchors 60 corresponds one to one.

[0055] Furthermore, the cylinder wall 10 includes vertical steel bars 11. Since the cylinder wall 10 is usually constructed in sections along the height direction, the vertical steel bars 11 will protrude from the completed construction section of the cylinder wall 10. The high end of the upper anchor 70 is connected to the designed position of the vertical steel bar 11. When the concrete of the next construction section of the cylinder wall 10 is subsequently poured, the connection between the upper anchor 70 and the vertical steel bar 11 is covered, so that the compressive load of the radiant beam 40 can be transferred to the cylinder wall 10 through the upper anchor 70, further improving the stability of the overall structure. Figure 6 As shown, the lower circular ring 52 is provided with pull rings 54 at intervals in the circumferential direction, and the lower end of the lower anchor 60 is also provided with a hook 61, which is connected to the pull ring 54, further simplifying the installation of the lower anchor 60 and improving construction efficiency.

[0056] Furthermore, the large diameter cylinder top cover formwork support system proposed in this application also includes a springboard 80 and a scaffold (not shown), such as Figure 7 As shown, springboards 80 are fully laid on top of the radial beams 40, and a scaffolding (not shown) is erected on top of the springboards 80. Specifically, the springboards 80 are butt-jointed or overlapped. Because the spacing between adjacent radial beams 40 near the cylinder wall 10 is greater than the spacing between adjacent radial beams 40 near the drum ring 50, two layers of springboards 80 are laid between adjacent radial beams 40 near the cylinder wall 10, so that the gap size and flatness between them meet construction requirements. The spacing between the scaffolding uprights is designed according to the position of the springboards 80, so that the uprights are located as close to the middle of the springboards 80 as possible, which helps to ensure the stability of the scaffolding.

[0057] The present application proposes a method for constructing a large-diameter cylinder top cover formwork support system, comprising the following steps:

[0058] (1) constructing the cylinder wall 10 and setting reserved holes on the cylinder wall 10;

[0059] Specifically, during the construction of the cylinder wall 10, the concrete of the square box body is embedded in the cylinder wall 10 to form a reserved hole for covering; the structural steel bars of the square box body and the cylinder wall 10 are welded together, and the reserved hole matches the cross-sectional shape of the cantilever steel beam 20;

[0060] (2) Inserting the cantilever steel beam 20 into the reserved hole;

[0061] Specifically, one end of a cantilevered steel beam 20 is inserted into the hole and welded to the square box, preventing it from loosening or slipping. The other end of the cantilevered steel beam 20 is suspended in the air, with its length extending radially inward of the cylinder wall 10. Several cantilevered steel beams 20 are spaced apart along the circumference of the cylinder wall 10, with their upper end surfaces arranged horizontally and at the same elevation.

[0062] (3) Erecting a ring beam 30 on the upper part of the cantilever steel beam;

[0063] Specifically, the ring beam 30 is welded and fixed to the upper end surface of the cantilever steel beam 20. The upper end surface of the ring beam 30 is horizontal. After the construction is completed, its flatness is checked to meet the installation requirements of the radiation beam 40.

[0064] (4) making a drum hoop 50 and raising the drum hoop 50 to a preset height;

[0065] Specifically, the drum ring 50 is lifted by a lifting device, and its preset height matches the height of the ring beam 30, so that the subsequent construction of the radial beam 40 can be arranged horizontally;

[0066] In this embodiment, the drum wall 10 is lifted by a climbing frame, so the drum hoop 50 is also lifted to its preset height by the climbing frame.

[0067] (5) Install the radiating beam 40 so that its two ends are connected to the drum ring 50 and the ring beam 30 respectively;

[0068] Specifically, one end of the radiation beam 40 is welded to the upper surface of the ring beam 30, and the other end is welded to the upper part of the drum ring 50. Its length extends horizontally along the radial direction of the cylinder wall 10 and is evenly spaced between the drum ring 50 and the ring beam 30.

[0069] (6) Install the lower tie member 60, whose lower end is connected to the pull ring 54 of the drum ring 50, and the upper end is connected to the end of the radiation beam 40 close to the cylinder wall 10;

[0070] Specifically, the high end of the lower anchor 60 is fixed to the connecting hole at one end of the radiation beam 40 close to the cylinder wall 10 through the hook 61, and the lower end is fixed to the pull ring 54 of the drum ring 50 through the hook 61. After ensuring that the connection is firm, the hook 61 is welded and fixed to the radiation beam 40 and the pull ring 54 respectively.

[0071] (7) Install the upper anchor 70, with its lower end connected to the end of the radiant beam 40 close to the cylinder wall 10, and its upper end connected to the vertical steel bar 11 of the cylinder wall 10;

[0072] Specifically, the lower end of the upper anchor 70 is fixed to the connection hole of the radiation beam 40 at one end close to the cylinder wall 10 through the hook 61, and the high end of the upper anchor 70 is welded to the vertical steel bar 11 of the cylinder wall 10; after ensuring that the connection is firm, the hook 61 is welded and fixed to the radiation beam 40; then, during the concrete construction of the next construction section of the cylinder wall 10, the connection part between the upper anchor 70 and the vertical steel bar 11 of the cylinder wall 10 is covered.

[0073] (8) Lay the springboard 80 on the upper part of the radiation beam 40, set up the scaffolding on the upper part of the springboard 80, and then proceed with the subsequent construction.

[0074] Through this technical solution, the drum ring forms a suspended fulcrum, which reduces the span of the radiation beam, lowers the production cost and construction difficulty; the radiation beam extends radially along the cylinder wall, and its length is less than the radius of the cylinder wall, which reduces the risk of the radiation beam being too long and deflecting in the middle, and improves the safety performance of the overall structure; by providing a lower anchor, the drum ring is more firmly fixed to the radiation beam; by providing an upper anchor, a cantilevered steel beam and a radiation beam, the pressure load borne by the radiation beam is effectively transmitted to the cylinder wall, and the force transmission path is scientific and reasonable, ensuring the safety of the overall structure; the construction is simple, which improves the construction efficiency, and the connection is stable, thereby establishing a solid support system for the subsequent cylinder top cover construction.

[0075] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A large diameter cylinder top cover formwork support system, characterized by: It includes the cylinder wall, cantilever steel beam, ring beam, radial beam, drum ring, upper anchor and lower anchor; The cantilevered steel beams are arranged at intervals along the circumference of the cylinder wall; The ring beam is arranged on the upper part of the cantilevered steel beam and is connected end to end along the circumference of the cylinder wall; The central axis of the drum ring coincides with the central axis of the cylinder wall; One end of the radiation beam is connected to the upper part of the drum ring, and the other end is connected to the ring beam; The lower end of the lower anchor is connected to the lower part of the drum ring, and the upper end is connected to the end of the radiation beam close to the cylinder wall; The lower end of the upper anchor is connected to the end of the radiation beam close to the ring beam, and the upper end is connected to the cylinder wall; The upper end of the upper anchor is higher than the upper end of the lower anchor.

2. The large-diameter cylinder top cover formwork support system according to claim 1 is characterized in that: The cylinder wall is provided with a reserved hole, and the cantilevered steel beam is inserted into the reserved hole.

3. The large-diameter cylinder top cover formwork support system according to claim 1 or 2, characterized in that: The ring beam is an arc-shaped structure, and its curvature corresponds to the curvature of the cylinder wall.

4. The large-diameter cylinder top cover formwork support system according to claim 1 or 2, characterized in that: The radiation beam extends horizontally along the radial direction of the cylinder wall.

5. The large-diameter cylinder top cover formwork support system according to claim 4 is characterized in that: The radiation beam includes two supporting beams and a connecting block, and the connecting block is arranged between the two supporting beams at intervals.

6. The large-diameter cylinder top cover formwork support system according to claim 1 or 5, characterized in that: The drum hoop comprises an upper circular ring, a lower circular ring and a supporting rod. Two ends of the supporting rod are respectively connected to the upper circular ring and the lower circular ring, and a plurality of the supporting rods are arranged at intervals.

7. The large-diameter cylinder top cover formwork support system according to claim 6, characterized in that: The lower end of the upper anchor is provided with a hook, and the end of the radiation beam close to the cylinder wall is provided with a connection hole matched with the hook; the cylinder wall includes vertical steel bars, and the high end of the upper anchor is connected to the vertical steel bars.

8. The large-diameter cylinder top cover formwork support system according to claim 7 is characterized in that: Pull rings are arranged at intervals along the circumference of the lower circular ring, and hooks are provided at both ends of the lower anchor. The hook at the lower end of the lower anchor is connected to the pull ring, and the hook at the high end of the lower anchor is connected to the other connecting hole of the radiation beam at one end close to the cylinder wall.

9. The large-diameter cylinder top cover formwork support system according to any one of claims 1, 2, 5, 7 or 8, characterized in that: It also includes a springboard and a scaffolding, wherein the springboard is fully laid on the upper part of the radiation beam, and the scaffolding is erected on the upper part of the springboard.

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