A special lifting beam for the entire ring of the top section of a concrete tower.

Abstract

This utility model belongs to the field of wind power construction technology, specifically a special lifting beam for the top section of a concrete tower. It includes a first crossbeam and a second crossbeam arranged in a cross shape. The second crossbeam is fixedly connected to the top of the first crossbeam. Support beams are fixedly connected to both ends of the first crossbeam. Two symmetrically arranged circular lifting straps are connected to the top of the first crossbeam. Circular lifting straps are connected to the bottom of both ends of the second crossbeam and the support beams. The lifting beam weighs only 2 tons, reducing the load on the crane. The lifting height is only about 5 meters, reducing the lifting height by 3 meters. Furthermore, using this lifting beam eliminates the risk of boom jamming. This utility model, through the design of the first crossbeam, second crossbeam, and support beam structure, reduces the risk of boom and beam jamming while maintaining a reasonable boom length, thereby optimizing the lifting scheme, increasing the selection of crane models, and achieving the goal of reducing construction costs.

Description

Technical Field

[0001] This utility model relates to the field of wind power construction technology, and in particular to a special lifting beam for the entire ring of the top section of a concrete tower. Background Technology

[0002] With the development of the wind power industry, traditional wind resource-advantaged areas are facing problems such as insufficient power absorption capacity, making wind power development in low-wind-speed areas an inevitable path. Low-wind-speed areas have a large wind shear index, and increasing the tower height can increase power generation. Concrete towers have high rigidity and safety stability, and can better adapt to the low-wind-speed wind farm environment, meeting the power generation needs.

[0003] In the era of grid parity for wind power, cost control is crucial. For towers over 140 meters in height, the cost of a concrete tower is only 60%-70% of that of a steel tower of the same height, and this cost advantage becomes more significant as the tower height increases. Furthermore, the concrete portion of the tower can be constructed near the site, saving substantial transportation costs.

[0004] Precast concrete tower sections are one of the mainstream construction methods currently available. Their design and application are based on practical needs such as convenient transportation and construction efficiency, but they also have certain limitations. To ensure the lifting schedule, there cannot be too long a time interval between the assembly and lifting of the precast tower sections. Precast tower sections are generally connected by bent bolts, grouting, or prestressing tensioning, but directly lifting them with slings results in localized stress at the top and easily leads to cracking at the bottom of the sections. To effectively solve this problem, a lifting beam corresponding to the tower diameter was fabricated.

[0005] However, the addition of the lifting beam increases the lifting height, and when using a large lifting beam, the basket and boom are prone to jamming when lifting close to the top of the tower. Utility Model Content

[0006] The purpose of this utility model is to solve the problem mentioned in the background art of increasing the lifting height by adding a lifting beam, and to propose a special lifting beam for the entire ring of the top section of a concrete tower.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A special lifting beam for the top section of a concrete tower includes a first crossbeam and a second crossbeam arranged in a cross shape. The second crossbeam is fixedly connected to the top of the first crossbeam. Support beams are fixedly connected to both ends of the first crossbeam. Two circular lifting straps are symmetrically arranged at the top of the first crossbeam. Annular lifting straps are connected to the bottom of both ends of the second crossbeam and the support beams.

[0009] Preferably, a plurality of first reinforcing plates are fixedly connected between the second crossbeam and the first crossbeam.

[0010] Preferably, a plurality of second reinforcing plates are fixedly connected between the first crossbeam and the support beam.

[0011] Preferably, the circular sling is connected to the top of the first crossbeam via a 25t bow-shaped shackle 8.

[0012] Preferably, the annular sling is connected to the second crossbeam and the support beam by a 12t bow-shaped shackle.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this utility model, the arrangement of the first crossbeam, the second crossbeam, and the support beam structure reduces the risk of the boom and beam getting stuck, thus optimizing the hoisting scheme, increasing the selection of crane models, and achieving the goal of reducing construction costs.

[0015] 2. The lifting beam in this utility model weighs only 2t, which reduces the load rate of the crane; the lifting height is only about 5m; the lifting height is reduced by 3m, and there is no risk of the boom getting stuck after using this lifting beam. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a special lifting beam for the top section of a concrete tower, as proposed in this utility model.

[0017] Figure 2 This is a side view of a special lifting beam for the top section of a concrete tower, as proposed in this utility model.

[0018] Figure 3 This is a top view schematic diagram of a special lifting beam for the top section of a concrete tower, as proposed in this utility model.

[0019] In the diagram: 1 First crossbeam, 2 Second crossbeam, 3 Support beam, 4 Circular sling, 5 Ring sling, 6 First reinforcing plate, 7 Second reinforcing plate, 8 25t bow shackle, 9 12t bow shackle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A special lifting beam for the top section of a concrete tower includes a first crossbeam 1 and a second crossbeam 2 arranged in a cross shape. Multiple first reinforcing plates 6 are fixedly connected between the second crossbeam 2 and the first crossbeam 1 to enhance the connection strength between the second crossbeam 2 and the first crossbeam 1.

[0022] In this embodiment, a plurality of second reinforcing plates 7 are fixedly connected between the first crossbeam 1 and the support beam 3 to improve the connection strength between the first crossbeam 1 and the support beam 3, and the second crossbeam 2 is fixedly connected to the top of the first crossbeam 1.

[0023] In this embodiment, support beams 3 are fixedly connected to both ends of the first crossbeam 1, and two symmetrically arranged circular slings 4 are connected to the top of the first crossbeam 1. The circular slings 4 are connected to the top of the first crossbeam 1 by a 25t bow-shaped shackle 8, which facilitates the disassembly and fixing of the circular slings 4.

[0024] In this embodiment, both ends of the second crossbeam 2 and the support beam 3 are connected to annular slings 5. The annular slings 5 ​​are connected to the second crossbeam 2 and the support beam 3 by 12t bow-shaped shackles 9, which facilitates the disassembly and fixing of the annular slings 5.

[0025] In this embodiment, the lifting beam weighs only 2t, reducing the load rate of the crane; the lifting height is only about 5m; the lifting height is reduced by 3m, and there is no risk of the beam getting stuck after using this lifting beam.

[0026] In this embodiment, the arrangement of the first crossbeam, the second crossbeam, and the support beam structure reduces the risk of the boom and beam getting stuck, thus optimizing the hoisting scheme, increasing the selection of crane models, and achieving the goal of reducing construction costs.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special lifting beam for the top section of a concrete tower, comprising a first crossbeam (1) and a second crossbeam (2) arranged in a cross shape, characterized in that: The second crossbeam (2) is fixedly connected to the top of the first crossbeam (1). Both ends of the first crossbeam (1) are fixedly connected to support beams (3). The top of the first crossbeam (1) is connected to two symmetrically arranged circular slings (4). Both ends of the second crossbeam (2) and the support beams (3) are connected to ring slings (5).

2. A special beam for the complete ring of a concrete tower top section according to claim 1, characterized in that: Multiple first reinforcing plates (6) are fixedly connected between the second crossbeam (2) and the first crossbeam (1).

3. The special beam for the whole ring of the top segment of a concrete tower according to claim 1, characterized in that: Multiple second reinforcing plates (7) are fixedly connected between the first crossbeam (1) and the support beam (3).

4. The special beam for the whole ring of the top segment of a concrete tower according to claim 1, characterized in that: The circular sling (4) is connected to the top of the first crossbeam (1) by a 25t bow shackle (8).

5. The special beam for the whole ring of the top segment of a concrete tower according to claim 1, characterized in that: The annular sling (5) is connected to the second crossbeam (2) and the support beam (3) by a 12t bow shackle (9).

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