Large-span steel net rack high-altitude sliding device and construction method

Abstract

The invention discloses a large-span steel net rack high-altitude sliding device and a construction method, and relates to the technical field of steel structure net rack construction equipment, the device comprises a crane beam, a rail, a straight carrying tanker, a fixing support, a booster and a rail clamping device, and a steel net rack is composed of rod pieces and joints. A top rib plate of the fixed bracket is matched with the spherical node to ensure the stability of the steel net rack; the construction method comprises the steps of steel net rack assembly, track laying, small tank arrangement, fixed support welding, steel net rack placement, sliding starting, target position processing and the like. Power is provided by the booster, slippage can be accurately controlled, stable slippage of the small tank is ensured through the limiting plate and the like, the problems that in the prior art, thrust is unstable, precision is low, and slippage is unstable easily are solved, and the safety and efficiency of high-altitude slippage construction of the large-span steel net frame are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure grid construction equipment, and in particular to a large-span steel grid high-altitude sliding device and a construction method. Background Art

[0002] Large-span steel grid structures are widely used in large-scale building facilities, such as stadiums, exhibition halls, and airport terminals. This structure is connected by multiple rods and nodes to form a spatial grid with high stiffness and load-bearing capacity. Due to its superior mechanical properties, the steel grid structure can cover a large area without internal support, thereby realizing an open interior space and improving the flexibility of architectural design.

[0003] In the construction process of large-span steel grids, high-altitude sliding construction technology is widely used. Sliding construction is a method of lifting and pushing the pre-assembled steel grid on the ground to the target position through a sliding device. Compared with traditional hoisting methods, sliding construction is safer and more efficient, especially suitable for construction sites with complex terrain or limited space. However, sliding construction technology has extremely high requirements on the stability, thrust stability and precision control of the sliding device.

[0004] In the prior art, for example, publication number CN216893574U discloses a steel grid sliding device for high-span grid installation, which uses a sliding tank as a sliding support and a manual hoist as a power sliding steel grid. Although it can achieve the sliding of the grid to a certain extent, the thrust of the manual power is unstable and has low precision, which is difficult to adapt to the requirements of modern large-scale construction for precision and efficiency. In addition, the operation of the manual hoist depends on manual labor, the precision of manual operation is limited, and it is difficult to achieve precise control during the sliding process, which increases the difficulty and uncertainty of construction, especially under large load conditions, which may cause the sliding of the grid to be unstable. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a large-span steel grid high-altitude sliding device, which adopts the following technical solutions:

[0006] A large-span steel grid high-altitude sliding device, the steel grid is composed of rods and nodes, the rods are connected by the nodes to form a stable grid structure, the device includes a traveling beam, the traveling beam is provided with a track, a straight-moving small tank is installed on the track, the moving direction of the straight-moving small tank is consistent with the extension direction of the track, ensuring that the straight-moving small tank slides smoothly in a straight line along the track, a fixed bracket is welded on the straight-moving small tank, the steel grid is arranged on the top of the fixed bracket, a pair of ear plates are provided on one side of the fixed bracket, the ear plate is movably connected to a booster, the other end of the booster is movably connected to a rail clamp, and the rail clamp is arranged on the track.

[0007] Furthermore, a rib plate is welded on the top of the fixed bracket, the node of the steel grid is a spherical node, and the upper end of the rib plate is arc-shaped, which is used to engage with the node of the steel grid to ensure the stability of the steel grid during sliding.

[0008] Furthermore, the lateral width of the straight-moving small tank is not less than the track width.

[0009] Furthermore, the left and right sides of the straight transport tank are welded with limit plates, which extend downward along both sides of the tank to contact the outer edge of the track, ensuring that the limit plates can effectively cover the track. The limit plates can prevent the tank from lateral deviation during the sliding process, ensuring stability and accuracy during the sliding process.

[0010] On the other hand, the present invention also proposes a construction method for the above-mentioned large-span steel grid high-altitude sliding device, comprising the following steps:

[0011] Steel grid assembly steps: The initial assembly of the steel grid is completed on the ground at the construction site. The grid is formed by a grid structure consisting of multiple rods and nodes connected by bolts. Each rod is connected to the node by bolts to form a stable steel grid structure.

[0012] Track laying steps: laying the traveling beam at the construction site, on which the track for sliding operation is provided;

[0013] Steps for setting up the small tank: Set the straight-moving small tank on the track and ensure that the moving direction of the small tank is consistent with the extension direction of the track;

[0014] Fixed bracket welding steps: Weld the fixed bracket to the top of the small tank for straight transport;

[0015] Steps for placing the steel grid: Use lifting equipment to lift the pre-assembled steel grid, and project the plane where it is located onto the fixed bracket of the small tank for straight transport. The nodes of the steel grid are connected through the rib plates on the top of the fixed bracket. Since the nodes are spherical nodes and the upper end of the rib plates is an arc shape to match them, it ensures that the steel grid can be placed firmly on the small tank for straight transport.

[0016] Sliding start-up steps: After the steel grid is firmly connected to the small tank for straight transport, start the booster. Since the booster is connected to the fixed bracket through the ear plate, it provides stable thrust for the small tank for straight transport, pushing the steel grid to slide along the track to the target position. The track clamp is fixed on the track to ensure that the small tank will not shake or derail under the thrust, further improving the safety of the sliding operation. The continuous power of the booster ensures the thrust stability of the steel grid during the sliding process, ensuring the smooth sliding of the steel grid;

[0017] Target position processing steps: When the steel grid slides to the target position, the grid is positioned by on-site construction personnel and reinforced with relevant fixing devices to complete the entire sliding operation.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The present invention adopts a booster as the sliding power source, replacing the manual hoist in the prior art. The adjustable thrust control mechanism can accurately control the sliding speed and displacement path of the steel grid, effectively improving the stability and continuity of the thrust during the sliding process. The continuous power provided by the booster enables the large-span steel grid to slide smoothly, avoiding the problems of uneven thrust and unstable sliding that may occur during manual operation. The track clamp can effectively prevent the shaking or derailment of the sliding device caused by the reaction force of the booster by firmly fixing the sliding device on the sliding track, thereby improving the safety of construction.

[0020] 2. The present invention further enhances the limiting effect of the small tank on the track by welding limiting plates on both sides of the straight-moving small tank, ensuring that lateral deviation does not occur during the sliding process. The close fit between the limiting plates and the track ensures the efficient operation of the sliding device, improves the construction safety and sliding accuracy, and does not affect the normal operation of the track clamp on the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view of an embodiment of the present invention;

[0022] Figure 2 It is a side view of a small tank for straight transport in an embodiment of the present invention.

[0023] The figure numbers are as follows: 1. rod; 2. node; 3. traveling beam; 4. track; 5. straight-moving small tank; 6. fixed bracket; 7. ear plate; 8. booster; 9. track clamp; 10. rib plate; 11. limit plate. DETAILED DESCRIPTION

[0024] Hereinafter, the technology in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0025] Reference Figures 1-2The present embodiment proposes a large-span steel grid high-altitude sliding device and a construction method thereof, wherein the steel grid is composed of rods 1 and nodes 2, and the rods 1 are connected by the nodes 2 to form a stable grid structure, and the device includes a traveling beam 3, on which a track 4 is provided, and on which a small straight-moving transport tank 5 is installed, and the moving direction of the small straight-moving transport tank 5 is consistent with the extension direction of the track 4, so as to ensure that the small straight-moving transport tank 5 can slide smoothly in a straight line along the track 4, and a fixed bracket 6 is welded on the small straight-moving transport tank 5, and the steel grid is arranged on the top of the fixed bracket 6, and a pair of ear plates 7 are provided on one side of the fixed bracket 5, and the ear plates are movably connected to a booster 8, and the other end of the booster 8 is movably connected to a track clamp 9, and the track clamp 9 is arranged on the track 4.

[0026] Specifically, a rib plate 10 is welded on the top of the fixed bracket 6, the node 2 of the steel grid is a spherical node, and the upper end of the rib plate 10 is arc-shaped, which is used to engage with the node 2 of the steel grid to ensure the stability of the steel grid during sliding.

[0027] Specifically, the lateral width of the straight-moving small tank 5 is designed to be no less than the width of the track 4. At the same time, the width of the small tank 5 should be controlled within an appropriate range to ensure that the small tank is normally located within the width of the track and the wheels on both sides of the small tank can contact the track.

[0028] The construction method of this embodiment:

[0029] First, the preliminary assembly of the steel grid is completed on the ground at the construction site. The grid is formed by a grid structure consisting of multiple rods 1 and nodes 2 connected by bolts. Each rod is connected to the node by bolts to form a stable steel grid structure;

[0030] A traveling beam 3 is laid at the construction site, and a track 4 for sliding operation is arranged on the traveling beam 3. Next, a small tank 5 for straight transport is set on the track, and it is ensured that the moving direction of the small tank is consistent with the extension direction of the track 4. Subsequently, a fixing bracket 5 is welded to the top of the small tank 5 for straight transport;

[0031] Use lifting equipment (such as a crane) to lift the pre-assembled steel grid and place it on the fixed bracket of the small tank 5 for straight transport. The node 2 of the steel grid is connected by the rib plate 10 welded on the top of the fixed bracket 6. Since the node 2 is a spherical node and the upper end of the rib plate 10 is an arc shape that matches it, it ensures that the steel grid can be stably placed on the small tank 5 for straight transport;

[0032] After the steel grid is firmly connected to the small tank 5 for straight transport, start the booster 8. Since the booster 8 is connected to the fixed bracket 6 through the ear plate 7, it provides a stable thrust for the small tank 5 for straight transport, pushing the steel grid to slide along the track to the target position. The track clamp 9 is fixed on the track to ensure that the small tank will not shake or derail under the thrust, further improving the safety of the sliding operation. The continuous power of the booster 8 ensures the thrust stability of the steel grid during the sliding process, ensuring the smooth sliding of the steel grid;

[0033] When the steel grid slides to the target position, the grid is positioned by the on-site construction personnel and the steel grid is reinforced with relevant fixing devices. At this point, the entire sliding operation is completed. In this embodiment, during the entire sliding process, the booster 8 and the track clamp 9 work together to ensure that the small tank slides smoothly along the track and prevents lateral deviation and shaking.

[0034] Embodiment 2:

[0035] This embodiment makes further improvements on the large-span steel grid high-altitude sliding device provided in Embodiment 1: limit plates 11 are welded on both sides of the left and right sides of the straight-moving small tank 5, and the limit plates 11 extend downward along both sides of the small tank 5 to contact the outer edge of the track 4, and their width is sufficient to cover the outer edge of the track 4. The close fit between the limit plates 11 and the track 4 effectively prevents the small tank 5 from lateral deviation during the sliding process, ensures the stability and accuracy of the sliding process, and further improves the safety of the construction.

[0036] Compared with the prior art mentioned in the background technology (which uses limiting side sliding angle steels welded on both sides of the track to limit the sliding small tank on the track, which will cause the track clamp to be unable to adapt to the track and cannot work normally), this embodiment achieves effective limitation of the small tank by welding limiting plates on both sides of the small tank, while avoiding changes to the track structure, thereby ensuring that the track clamp can still be normally set on the track and cooperate well with the track, thereby ensuring the stability and accuracy of the small tank during the sliding process.

Claims

1. A large-span steel grid high-altitude sliding device, the steel grid is composed of rods and nodes, the device includes a traveling beam, and a track is arranged on the traveling beam, characterized in that: A small straight-moving transport tank is provided on the track, and the moving direction of the small straight-moving transport tank is consistent with the extension direction of the track. A fixed bracket is welded on the small straight-moving transport tank, and the steel grid is arranged on the top of the fixed bracket. A pair of ear plates are provided on one side of the fixed bracket, and the ear plates are movably connected to a booster. The other end of the booster is movably connected to a track clamp, and the track clamp is arranged on the track.

2. The large-span steel grid high-altitude sliding device according to claim 1 is characterized in that: A rib plate is welded on the top of the fixed bracket, the nodes of the steel grid are spherical nodes, and the upper end of the rib plate is arc-shaped for clamping and matching with the nodes of the steel grid.

3. The large-span steel grid high-altitude sliding device according to claim 1 is characterized in that: The lateral width of the straight-moving small tank is not less than the track width.

4. The large-span steel grid high-altitude sliding device according to claim 3 is characterized in that: Limiting plates are welded on both sides of the left and right sides of the straight-moving small tank. The limiting plates extend downward along both sides of the small tank until they contact the outer edge of the track, ensuring that the limiting plates can effectively cover the track.

5. A construction method for a large-span steel grid high-altitude sliding device according to any one of claims 1 to 4, characterized in that: The method comprises the following steps: Step 1: Complete the preliminary assembly of the steel grid on the ground at the construction site. The grid is formed by connecting multiple rods and nodes through bolts to form a grid structure. Each rod is connected to the node through bolts to form a stable steel grid structure. Step 2: laying a traveling beam at the construction site, on which a track for sliding operation is provided; Step 3, place the small tank for straight transport on the track, and ensure that the moving direction of the small tank is consistent with the extension direction of the track; Step 4, weld the fixed bracket to the top of the small straight-moving tank; Step 5: Use the lifting equipment to lift the pre-assembled steel grid and project the plane where it is located onto the fixed bracket of the small tank for straight transport. The nodes of the steel grid are connected by the rib plate on the top of the fixed bracket; Step 6: After the steel grid is firmly connected to the small straight-moving transport tank, the booster is started to push the steel grid to slide along the track toward the target position; Step 7: When the steel grid slides to the target position, the on-site construction personnel will position the grid and use relevant fixing devices to reinforce the steel grid to complete the entire sliding operation.

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