Platform supporting structure, construction platform, tower drum and wind generating set

Abstract

The utility model provides a platform supporting structure, a construction platform, a tower drum and a wind generating set, the platform supporting structure comprises a center supporting part and a plurality of supporting beams, the supporting beams are arranged around the center supporting part, the platform supporting structure further comprises an angle adjusting structure, and the angle adjusting structure is arranged around the center supporting part. The angle adjusting structure enables the supporting beams to incline downwards by a certain angle relative to the center supporting part in the outward extending direction. According to the platform supporting structure, the platform surface of the construction platform can be kept in a roughly horizontal state when the construction platform is in a suspended state, and the construction safety is ensured.

Description

Technical Field

[0001] This application relates to the field of tower installation and construction technology, and more specifically, to a platform support structure, a construction platform, a tower, and a wind turbine generator set. Background Technology

[0002] Traditional steel towers have low stiffness and are prone to resonance, which can lead to failure. In contrast, precast concrete towers have advantages such as high weight, durability, stability, and low cost. Therefore, as the installed capacity increases and the tower height increases accordingly, concrete towers are being used more and more widely.

[0003] Concrete tower sections are typically prefabricated in sections or segments, then transported to the site for assembly and hoisting. After each concrete section is hoisted, the hooks at the top of the section need to be removed, the top of the section leveled, and adhesive applied. Therefore, a construction platform is required during the installation of the concrete tower to facilitate these operations. The construction platform is lifted by a crane to a predetermined height inside the tower, and then connected to hooks on the inner wall of the tower via attachment points on the platform, thus suspending the platform at the predetermined height for the workers to operate.

[0004] Then, the existing construction platform has the problem of sagging due to gravity, resulting in inconsistent heights at different parts of the construction platform. Utility Model Content

[0005] The purpose of this application is to provide a platform support structure, a construction platform, a tower, and a wind turbine generator set to solve the problem in the prior art where the support structure design of the construction platform is unreasonable, resulting in a flat platform support surface.

[0006] According to one aspect of this application, a platform support structure is provided, the platform support structure including a central support part and multiple support beams, the multiple support beams being arranged around the central support part, the platform support structure further including an angle adjustment structure, the angle adjustment structure causing the support beams to tilt downward at a certain angle relative to the central support part in the outward extending direction.

[0007] According to one aspect of this application, the angle adjustment structure is an inclined surface disposed on the outer surface of the central support and / or the inner end of the support beam, the support beam being fixedly connected to the outer wall of the central support through the inclined surface, such that the support beam is inclined downward at a predetermined angle in the vertical direction.

[0008] According to one aspect of this application, the central support is cylindrical or cylindrical, and the inclined surface of the support beam is welded to the outer wall of the central support.

[0009] According to one aspect of this application, the plurality of support beams include a first support beam and a second support beam. In the outward extending direction of the support beams, the first support beam is inclined downward at a first angle relative to the central support portion, and the second support beam is inclined downward at a second angle relative to the central support portion, wherein the first angle is greater than the second angle.

[0010] According to one aspect of this application, the outer end of the first support beam is provided with a mounting point for suspending the platform support structure.

[0011] According to one aspect of this application, when the platform support structure is in a suspended state, the first support beam and the second support beam are approximately at the same height.

[0012] According to one aspect of this application, the support beam includes a first hollow tube and a second hollow tube, the first end of the first hollow tube facing the middle of the platform support structure, the first end of the second hollow tube being able to be inserted into the second end of the first hollow tube, a pad being provided on the bottom wall of the second end of the first hollow tube, and the second hollow tube being supported by the pad.

[0013] According to one aspect of this application, the platform support structure includes a plurality of lifting lugs as attachment points for the platform support structure. The platform support structure is circular, and the plurality of lifting lugs are arranged at intervals on the circumference of the platform support structure, with each lifting lug arranged along the radial direction of the platform support structure.

[0014] According to one aspect of this application, the lifting lug is provided with a lifting hole or connecting shaft for connecting to an external hook, and the axis of the lifting hole or connecting shaft is configured to be perpendicular to the radial direction of the platform support structure.

[0015] According to one aspect of this application, the radially outer end of the support beam and / or the reinforcing beam has a receiving space, and the lug includes a lug body and an insertion portion extending laterally relative to the lug body, the insertion portion being inserted into the receiving space and fixedly connected to the support beam and / or the reinforcing beam.

[0016] According to one aspect of this application, the upper sidewall of the receiving space is provided with a cutout, and the main body of the lifting lug can be embedded in the cutout, such that the outer surface of the lifting lug is flush with the outer end face of the support beam and / or the reinforcing beam.

[0017] According to one aspect of this application, the outer end of the support beam and / or the reinforcing beam is further provided with a reinforcing plate, and the reinforcing plate is fixedly connected to the outer end face of the support beam and / or the reinforcing beam and the outer end face of the lifting lug.

[0018] According to another aspect of this application, a construction platform is provided, the construction platform including the platform support structure as described above and a platform plate disposed on the platform support structure.

[0019] According to another aspect of this application, a tower is provided, which is composed of multiple cylindrical sections connected vertically, wherein the construction platform described above is used in the tower during the process of connecting the multiple cylindrical sections to each other.

[0020] According to another aspect of this application, a wind turbine generator set is provided, the wind turbine generator set including the tower described above.

[0021] According to an embodiment of this application, by arching the middle of the platform support structure, the support surface formed by the construction platform in the suspended state can be adjusted to be in a horizontal state, thereby ensuring construction safety. Attached Figure Description

[0022] The above and / or other objects and advantages of this disclosure will become clearer from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 This is a perspective view of the platform support structure according to an embodiment of this application;

[0024] Figure 2 This is a perspective view of the construction platform according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram showing that the support beams of the platform support structure are designed as straight beams;

[0026] Figure 4 This is a schematic diagram of the support beams of the platform support structure designed to be straight during hoisting.

[0027] Figure 5 This is a schematic diagram of the support beams of the platform support structure designed to be straight in a suspended state;

[0028] Figure 6 This is a structural schematic diagram of the support beam according to an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the first support beam of the platform support structure in a suspended state according to an embodiment of this application;

[0030] Figure 8 This is a perspective view of the support beam and hook structure according to an embodiment of this application;

[0031] Figure 9 This is a perspective view of the hook structure according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures

[0033] 710-Support Beam

[0034] 711-Incision

[0035] 712-First Hollow Tube

[0036] 714 - Second Hollow Tube

[0037] 715-Place Block

[0038] 780-Central Support Section

[0039] 800-Hanging Ear

[0040] 810-Hanging Lug Main Body

[0041] 811-Lifting Hole

[0042] 812-Connecting Corner Plate

[0043] 820-Insertion Section

[0044] 880-Reinforced Plate Detailed Implementation

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of this disclosure are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0046] According to an embodiment of this application, a platform support structure is provided, on which a platform plate can be installed to form a construction platform according to an embodiment of this application.

[0047] Figure 1 This is a perspective view of the platform support structure according to an embodiment of this application; Figure 2 This is a perspective view of the construction platform according to an embodiment of this application.

[0048] like Figure 2 As shown, the construction platform according to an embodiment of this application includes, as follows: Figure 1 The platform support structure and the platform plate mounted on the platform support structure are shown. Figure 1 and Figure 2 As shown, the platform support structure includes multiple support beams 710, each extending outward relative to the center of the platform support structure. The platform support structure also includes an angle adjustment structure, allowing the support beams 710 to extend horizontally when the platform support structure is suspended, thereby forming a roughly horizontal support structure.

[0049] The platform support structure has multiple attachment points on its outer perimeter, which connect to hooks on the inner wall of the tower, thus suspending the construction platform inside the tower. Because the support beam 710 is stronger than the platform plate, the attachment points are typically located at the outer ends of the support beam 710. Due to the large size and weight of the construction platform, and the large amount of materials and multiple workers standing on it, when suspended from the inner wall of the tower via the outer attachment points, the middle of the platform will sag downwards under gravity, resulting in a platform surface that is higher at the outer perimeter and lower in the middle. This poses a safety hazard to workers standing on the construction platform.

[0050] In existing technologies, such as Figure 3 As shown, the support beam 710 is designed as a straight structure, lying in the same plane as the central support 780. To hoist the construction platform into the tower, multiple lifting points are also installed on the platform support mechanism, typically located in the middle of the platform support structure. For example... Figure 4 As shown, during the lifting process of the construction platform, the lifting mechanism is connected to the lifting point in the middle of the construction platform. The outer end of the support beam 710 will bend and deform downward under the action of gravity, causing the upper surface of the platform plate to tilt outward. This may cause the materials placed on the platform plate to slide outward. After the construction platform is suspended on the inner wall of the tower, as... Figure 5 As shown, the hooks on the outer periphery of the construction platform are connected to the hooks on the inner wall of the tower. The middle part of the construction platform will deform and fall under the action of gravity, resulting in a relative concavity in the middle of the platform.

[0051] Furthermore, because the diameter of the tower decreases with increasing height, some construction platforms utilize telescopic beams to adjust their size to accommodate the tower's inner diameter. For example... Figures 3 to 5 As shown, the support beam 710 can be designed as a telescopic beam, consisting of multiple interconnected hollow tubes that can extend and retract to adjust its length. For example, the support beam 710 includes a first hollow tube 712 and a second hollow tube 714, with the second hollow tube 714 being telescopically inserted into the first hollow tube 712. Because there is a certain gap between the first hollow tube 712 and the second hollow tube 714, this exacerbates the downward drooping of the end of the support beam 710 during lifting and the upward bending of the outer end of the support beam 710 in the suspended state. The degree of bending deformation is more pronounced when the support beam 710 includes more hollow tubes.

[0052] According to an embodiment of this application, by setting an angle adjustment structure, in the direction in which the support beam 710 extends outward, the support beam 710 is tilted downward at a certain angle relative to the middle of the platform support structure, so that the middle of the platform support structure arches upward, and the height of the arch can compensate for the degree of depression of the middle of the platform support structure under the action of gravity, so that the support plane formed by the platform plate is basically at the same height.

[0053] According to one aspect of this application, the platform support structure is generally circular to match the internal shape of the tower; however, the term "circular" here does not mean a standard circle, but can be approximately circular or a regular polygon.

[0054] According to embodiments of this application, such as Figure 6 As shown, the platform support structure also includes a central support portion 780, around which multiple support beams 710 are arranged. The angle adjustment structure can be an inclined surface formed on the outer surface of the central support portion 780, and / or an inclined surface formed at the end of the support beam 710. The support beam 710 is fixedly connected to the outer wall of the central support portion 780 via the inclined surface, causing the support beam 710 to be inclined at a certain angle in the vertical direction.

[0055] As an example, the central support portion 780 is cylindrical and has vertically extending sidewalls. The inner end of the support beam 710 has an inclined surface, and the support beam 710 is connected to the outer sidewall of the central support portion 780 through the inclined surface, such that the root of the support beam 710 is tilted upward at a certain angle relative to the outer end of the support beam 710.

[0056] According to an embodiment of this application, the central support 780 is a stainless steel reinforcing ring, and the support beam 710 is also made of stainless steel. An inclined surface can be formed by cutting off a wedge angle from the root of the support beam 710, and then welding the root of the support beam 710 to the central support 780, so that the second end of the support beam 710 is inclined downward at a certain angle relative to the central support 780.

[0057] The tilt angle of the support beam 710 relative to the central support 780 can be determined by calculating the degree of downward deformation of the construction platform in a suspended state based on parameters such as the weight, deflection, and weight of the materials it bears. By adjusting the structure at this angle, the degree of arching in the middle of the construction platform can compensate for the amount of sinking in the middle of the construction platform under gravity, thereby keeping the construction platform roughly in the same plane.

[0058] Because the support beam 710 has relatively high strength, the hook points for the construction platform are usually located on the support beam 710, suspending the platform inside the tower. However, in practical applications, not every support beam 710 necessarily has a hook point; the number of hook points is determined based on the overall dimensions, weight, and load-bearing capacity of the construction platform. Therefore, the support beam 710 includes a first support beam with hook points and a second support beam without hook points. For the first support beam with hook points, the outer end may be pulled upwards under the action of the hooks, thus keeping it in the same plane as the middle of the construction platform. However, for the second support beam without hook points, under the action of gravity, the outer end may sag downwards and tilt, causing the first and second support beams to be out of plane. This results in warping of the support plane formed by the platform support plate, and the uneven support surface can easily trip workers, posing a safety hazard.

[0059] According to an embodiment of this application, the first support beam has a mounting point, while the second support beam does not. By making the first and second support beams tilt at different angles relative to the central support 780, it is ensured that when the construction platform is suspended, the multiple support beams 710 are at as much the same height as possible, so that the support surfaces at different positions of the platform plate are generally in a horizontal plane. As an example, the upward tilt angle of the root of the first support beam is greater than the upward tilt angle of the second support beam.

[0060] As an example, the support beam according to an embodiment of this application is composed of interlocking hollow tubes, thereby forming a telescopic beam. Figure 6 As shown, the support beam includes a first hollow tube 712 and a second hollow tube 714. The first end of the first hollow tube 712 faces the center of the platform support structure and is fixedly connected to the central support part 780. The first end of the second hollow tube 714 can be inserted into the second end of the first hollow tube 712. Since the second hollow tube 714 is inserted into the first hollow tube 712 and can extend and retract, the size of the second hollow tube 714 is smaller than the size of the first hollow tube 712, thus creating a gap between them.

[0061] According to an embodiment of this application, a pad 715 is provided at the second end of the first hollow tube 712, and the second hollow tube 714 is supported by the pad 715. By providing the pad 715, the gap between the bottom wall of the second hollow tube 714 and the bottom wall of the first hollow tube 712 can be reduced, thereby reducing the degree of rotational tilt of the second hollow tube 714 relative to the first hollow tube 712, thus achieving the effect of adjusting the extension angle of the second hollow tube 714. As an example, both the first hollow tube 712 and the second hollow tube 714 are square tubes, with the bottom plate of the square tube extending horizontally, and the pad 715 is a square pad. When a third hollow tube is also inserted into the second hollow tube 714, a pad can also be provided at the outer end of the second hollow tube 714 to adjust the tilt angle of the third hollow tube.

[0062] Figure 7 A schematic diagram of the first support beam is shown with the construction platform in a suspended state. Figure 7 As shown, the hook applies a tensile force F to the end of the first support beam, and the middle part of the construction platform undergoes a certain degree of downward deformation under the action of gravity G. Because the central support part 780 arches upward relative to the support beam 710 according to the platform support structure of this application, it can just compensate for the degree of sinking under gravity, thereby forming a roughly horizontal support structure and ensuring that the height of the platform plate is consistent throughout.

[0063] In addition, the tension F has an upward vertical component and a radial outward horizontal component along the construction platform. Under the action of the horizontal tension and gravity, the second hollow tube 714 is flattened relative to the first hollow tube 712, and with the support of the pad 715, it can further ensure that the first hollow tube and the second hollow tube remain in the horizontal direction.

[0064] When the construction platform is suspended, the second support beam has no mounting points. However, because the downward inclination angle of the outer end of the second support beam is smaller than that of the outer end of the first support beam, when the middle of the construction platform sinks due to gravity G, the second support beam can be level with the middle of the platform, thus maintaining an overall horizontal position. With the support of the pad 715, the first hollow tube 712 and the second hollow tube 714 can remain straight and connected, keeping the second support beam horizontal.

[0065] According to the embodiments of this application, the inclination of the first and second support beams of the construction platform is adjusted at different angles depending on whether there are hook points. This allows the first and second support beams to be on the same horizontal plane when the construction platform is suspended, giving the construction platform a relatively flat support surface and providing a safe construction environment for workers.

[0066] like Figure 1 As shown in the embodiment of this application, a clearance opening 19 is formed on the outer periphery of the platform support structure. As an example, this clearance opening 19 can be a ladder opening, opposite to a ladder on the inner wall of the mounting tower, to avoid interference with the ladder. The platform support structure also includes two reinforcing beams 116 located on both sides of the clearance opening 19. The reinforcing beams 116 are fixedly connected to the bottom of the support beam 710 and are inclined downwards at a certain angle in the direction extending towards the outer periphery of the platform support structure. By making the reinforcing beams inclined downwards at a certain angle relative to the outer periphery of the platform support structure, the platform plate located on the reinforcing beam 116 and the platform plate provided on the support beam 710 can remain approximately in the same plane after being suspended inside the tower.

[0067] According to an embodiment of this application, the outer end of the reinforcing beam 116 is provided with a mounting point for suspending the construction platform inside the tower.

[0068] According to an embodiment of this application, the platform support structure includes a fixed support portion located in the middle and an annular support portion located on the outer periphery of the fixed support portion. The reinforcing beam 116 includes a fixed beam segment 1161 located at the bottom of the fixed support portion and a telescopic beam segment 1162 detachably connected to the bottom of the annular support portion. The telescopic beam segment 1162 is telescopic or detachable relative to the fixed beam segment 1161.

[0069] According to an embodiment of this application, the support beam 710 includes a first hollow tube 712 and a second hollow tube 714. The second hollow tube 714 is telescopically inserted into the first hollow tube 712, thereby forming an adjustable telescopic structure, making the construction platform a support platform with an adjustable outer diameter. The first hollow tubes 712 of the multiple support beams 710 are fixedly connected to the central support portion 780, thereby forming a fixed support structure located in the middle, while the second hollow tubes 714 of the multiple support beams 710 form a ring-shaped telescopic support structure around the fixed support structure. Therefore, the platform support structure according to an embodiment of this application includes a fixed support portion located in the middle and a telescopic support portion located on the outer periphery of the fixed support portion. The fixed beam segment 1161 of the reinforcing beam 116 can be fixedly connected to the bottom of the fixed support portion, while the telescopic beam segment 1162 is detachably connected to the bottom of the telescopic support portion. As an example, a pad can be welded between the bottom of the fixed support portion and the fixed beam segment 1161 to adjust the tilt angle of the reinforcing beam 116. The pad can be set at the end where the fixed beam segment 1161 and the telescopic beam segment 1162 are connected.

[0070] Similar to the structure of the support beam 710, the reinforcing beam 116 may also include a first hollow tube and a second hollow tube that are interlocked, so that the length of the reinforcing beam 116 can be adjusted. A pad may also be provided at the opening of the first hollow tube, which will not be described in detail here.

[0071] like Figures 8 to 9 As shown, the platform support structure according to this application includes a lifting lug 800, which serves as a mounting point for the platform support structure. The platform support structure is generally circular, and the lifting lug 800 is arranged along the radial direction of the platform support structure. Specifically, the lifting lug 800 is provided with a lifting hole 811 or a connecting shaft for connecting to a hook (not shown), and the axis of the lifting hole 811 or the connecting shaft is arranged perpendicular to the radial direction of the platform support structure.

[0072] When the platform support structure is suspended inside the tower by multiple hooks, the hooks are arranged circumferentially around the platform support structure, applying an upward tensile force. When the lifting lug 800 forms an angle with the radial direction, this tensile force is decomposed into a tensile force along the radial direction of the platform support structure and a lateral tensile force perpendicular to the radial direction. This lateral tensile force can damage the lifting lug and cause the hook to be torsionally twisted or even damaged. However, according to the embodiments of this application, the lifting lug 800 is set along the radial direction of the platform support structure, so that after the hook and the lifting hole 811 are engaged, the tensile force applied by the hook to the lifting hole 811 is in the same plane as the lifting lug 800. This makes the platform support structure subjected to balanced forces, avoiding torsional stress between the lifting lug 800 and the support beam 710 or the reinforcing beam 116, as well as torsional stress between the lifting lug and the hook, thereby preventing damage to the lifting lug and the hook.

[0073] According to an embodiment of this application, multiple support beams 710 are generally arranged radially and extend along the radial direction of the support platform structure. Lifting lugs 800 are fixedly installed at the radial outer ends of the support beams 710, so that multiple lifting lugs 800 are spaced apart circumferentially along the platform support structure.

[0074] According to an embodiment of this application, the radially outer end of the support beam 710 may have a receiving space, and the lug 800 is generally L-shaped, including a lug body 810 and an insertion part 820 extending laterally relative to the lug body 810. The insertion part 820 can be inserted into and fixed in the receiving space at the end of the support beam 710.

[0075] Similarly, according to embodiments of this application, the radially outer end of the reinforcing beam 116 may have a receiving space, and the lug 800 is generally L-shaped, including a lug body 810 and an insertion portion 820 extending laterally relative to the lug body 810, the insertion portion 820 being able to be inserted into and fixed in the receiving space at the end of the reinforcing beam 116.

[0076] By inserting the insertion part 820 into the end of the support beam 710 or the reinforcing beam 116, the contact area between the lifting lug 800 and the support beam 710 or the reinforcing beam 116 can be increased, and the contact strength between the lifting lug 800 and the support beam 710 or the reinforcing beam can be improved, thereby enhancing the safety of the construction platform.

[0077] According to an embodiment of this application, a reinforcing plate 880 is further provided at the outer end of the support beam, and the reinforcing plate 880 is fixedly connected to the outer end face of the support beam 710 and the outer end face of the lifting lug 800. According to an embodiment of this application, a notch 711 is provided on the upper sidewall of the accommodating space, and the lifting lug body 810 can be embedded in the notch 711, so that the outer surface of the lifting lug is flush with the outer end face of the support beam. By making the outer surface of the lifting lug flush with the outer end face of the support beam, the contact area and connection strength with the reinforcing plate 880 can be increased, preventing the lifting lug 800 from falling off the support beam. A connecting angle plate 812 can also be provided between the reinforcing plate 880 and the lifting lug body 810 to further improve the connection strength between the reinforcing plate 880 and the lifting lug 800. The lifting lug 800, the support beam 710, the reinforcing plate 880, and the connecting angle plate 812 can be welded together to form an integral structure. Similarly, the reinforcing beam 116, lifting lug 800, reinforcing plate 880, and connecting corner plate 812 can also be set in the manner described above.

[0078] According to another embodiment of this application, a construction platform is also provided, comprising the aforementioned platform support structure and a platform plate disposed on the platform support structure. The construction platform ensures that the platform support surfaces are at the same height, preventing local tilting, avoiding tripping of construction personnel or slippage of materials, and improving construction safety.

[0079] According to another embodiment of this application, a tower is also provided, which is composed of multiple sections connected vertically. During the process of connecting the multiple sections, the construction platform described above is used in the tower.

[0080] According to another embodiment of this application, a wind turbine generator set is also provided, which includes the tower described above.

[0081] The features, structures, or characteristics described in this application can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the foregoing description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

Claims

1. A platform support structure, characterized in that, The platform support structure includes a central support part (780) and multiple support beams (710), the multiple support beams (710) being arranged around the central support part (780). The platform support structure also includes an angle adjustment structure, which causes the support beams (710) to tilt downward at a certain angle relative to the central support part (780) in the outward extending direction.

2. The platform support structure according to claim 1, characterized in that, The angle adjustment structure is an inclined surface provided on the outer surface of the central support (780) and / or the inner end of the support beam (710). The support beam (710) is fixedly connected to the outer wall of the central support (780) through the inclined surface, so that the support beam (710) is inclined at a certain angle in the vertical direction.

3. The platform support structure according to claim 2, characterized in that, The central support (780) is cylindrical or cylindrical, and the inclined surface of the support beam (710) is fixedly connected to the outer side of the central support (780).

4. The platform support structure according to any one of claims 1-3, characterized in that, The plurality of support beams (710) include a first support beam and a second support beam. In the outward direction of the support beams (710), the first support beam is inclined downward at a first angle relative to the central support portion (780), and the second support beam is inclined downward at a second angle relative to the central support portion (780). The first angle is greater than the second angle.

5. The platform support structure according to claim 4, characterized in that, The outer end of the first support beam is provided with a mounting point for suspending the platform support structure.

6. The platform support structure according to claim 5, characterized in that, When the platform support structure is in a suspended state, the first support beam and the second support beam are approximately at the same height.

7. The platform support structure according to any one of claims 1-3, characterized in that, The support beam (710) includes a first hollow tube (712) and a second hollow tube (714). The first end of the first hollow tube (712) faces the middle of the platform support structure. The first end of the second hollow tube (714) can be inserted into the second end of the first hollow tube (712). A pad (715) is provided on the bottom wall of the second end of the first hollow tube (712). The second hollow tube (714) is supported by the pad (715).

8. The platform support structure according to claim 1, characterized in that, The platform support structure has an avoidance opening (19) on its outer periphery. The platform support structure also includes two reinforcing beams (116) located on both sides of the avoidance opening (19). The reinforcing beams (116) are fixedly connected to the bottom of the support beam (710) and are inclined downward at a certain angle in the direction extending towards the outer periphery of the platform support structure.

9. The platform support structure according to claim 8, characterized in that, The platform support structure includes a fixed support portion located in the middle and an annular support portion located on the outer periphery of the fixed support portion. The reinforcing beam (116) includes a fixed beam segment (1161) located at the bottom of the fixed support portion and a telescopic beam segment (1162) detachably connected to the bottom of the annular support portion. The telescopic beam segment (1162) can extend or retract relative to the fixed beam segment (1161) or be detachable.

10. The platform support structure according to claim 8, characterized in that, The outer end of the reinforcing beam (116) is provided with a hanging point.

11. The platform support structure according to claim 8, characterized in that, The platform support structure includes a plurality of lifting lugs (800) as attachment points for the platform support structure. The platform support structure is circular, and the plurality of lifting lugs (800) are arranged at intervals on the circumference of the platform support structure. Each lifting lug (800) is arranged along the radial direction of the platform support structure.

12. The platform support structure according to claim 11, characterized in that, The lifting lug (800) is provided with a lifting hole (811) or a connecting shaft for connecting to an external hook, and the axis of the lifting hole (811) or the connecting shaft is set to be perpendicular to the radial direction of the platform support structure.

13. The platform support structure according to claim 11, characterized in that, The radially outer ends of the support beam (710) and / or the reinforcing beam (116) have receiving spaces, and the lug (800) includes a lug body (810) and an insertion part (820) extending laterally relative to the lug body (810), the insertion part (820) being inserted into the receiving space and fixedly connected to the support beam (710) and / or the reinforcing beam (116).

14. The platform support structure according to claim 13, characterized in that, The upper sidewall of the accommodating space is provided with a cut (711), and the main body of the lifting lug (810) can be embedded in the cut (711) so that the outer surface of the lifting lug (800) is flush with the outer end face of the support beam (710) and / or the reinforcing beam (116).

15. The platform support structure according to claim 11, characterized in that, The outer ends of the support beam (710) and / or the reinforcing beam (116) are further provided with reinforcing plates (880), and the reinforcing plates (880) are fixedly connected to the outer end faces of the support beam (710) and / or the reinforcing beam (116) and the outer end faces of the lifting lugs (800).

16. A construction platform, characterized in that, The construction platform includes a platform support structure as described in any one of claims 1-15 and a platform plate disposed on the platform support structure.

17. A tower, characterized in that, The tower is composed of multiple cylindrical sections connected vertically. During the interconnection of the multiple cylindrical sections, the construction platform according to claim 16 is set in the tower.

18. A wind turbine generator set, characterized in that, The wind turbine generator set includes the tower as described in claim 17.

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