Modular support platform for onshore wind turbine generators

Abstract

This utility model relates to a prefabricated support platform structure for onshore wind turbine generator sets, including a concrete pad, a prefabricated main component, and a prefabricated upper ring component. The prefabricated main component includes an annular base plate, an annular column installed on the annular base plate, and ribs connecting the annular column and the annular base plate. The prefabricated upper ring component is installed on the upper surface of the annular column. A post-cast concrete ring layer is formed between the prefabricated upper ring component, the annular column, and the ribs. The prefabricated support platform structure for onshore wind turbine generator sets of this technical solution can effectively adjust the height of the overall structure by setting the prefabricated upper ring component, ensuring that the overall structure can be applied to various scenarios. The prefabricated upper ring component is installed on the upper surface of the prefabricated main component. By using the annular column and ribs in conjunction with the prefabricated upper ring component for post-cast construction, a post-cast concrete ring layer structure is formed, ensuring the stability and reliability of the prefabricated upper ring component.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine generators, specifically to a prefabricated support platform structure for onshore wind turbine generator sets. Background Technology

[0002] Wind power, as an important renewable energy source, has experienced rapid development, and the future development of the wind power industry will continue to show an expansion trend of "coordinated development between onshore and offshore areas, with accelerated growth on both tracks." Currently, the foundation structures for onshore wind power projects generally still use cast-in-place spread foundations or cast-in-place pile cap foundations, but these types of foundations have problems such as large casting volumes, difficulties in on-site curing, and long construction periods. Many existing support platform structures are installed using prefabricated construction. The main structure of prefabricated foundations is generally composed of precast components, which are then assembled and poured. However, the installation scenarios and terrains of wind turbine generators often vary. If a weak soil layer is encountered, it is necessary to increase the overall height of the foundation to increase its depth, placing the foundation bearing layer in a soil layer with better load-bearing capacity, thereby ensuring the stability of the overall structure. Since the installation scenarios for precast components are not unique, the existing support platform structure needs to be improved to allow for adjustable installation height to adapt to different environmental scenarios while ensuring the stability of the overall structure.

[0003] Therefore, to solve the above problems, a prefabricated support platform structure for onshore wind turbine generators is needed. Utility Model Content

[0004] The onshore wind turbine generator set of this technical solution uses a prefabricated support platform structure. By setting up prefabricated upper ring components, the height of the overall structure can be effectively adjusted to ensure that the overall structure can be applied to various scenarios. The prefabricated upper ring components are installed on the upper surface of the prefabricated main components. By using the ring column and rib beams in conjunction with the prefabricated upper ring components for post-casting construction, a post-cast concrete ring structure is formed, which ensures the stability and reliability of the prefabricated upper ring components.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A prefabricated support platform structure for onshore wind turbine generator sets includes a concrete pad, a prefabricated main body component installed on the concrete pad, and a prefabricated upper ring component installed on the upper end of the prefabricated main body component. The prefabricated main body component includes an annular base plate, an annular column installed on the annular base plate, and rib beams connecting the annular column and the annular base plate. The prefabricated upper ring component is installed on the upper end face of the annular column, and a post-cast concrete ring layer is formed between the prefabricated upper ring component, the annular column, and the rib beams.

[0006] Furthermore, a radial steel bar sleeve assembly is provided inside the prefabricated upper ring component. The radial steel bar sleeve assembly includes a radial inner steel bar pre-embedded in the prefabricated upper ring component and a radial steel bar sleeve fixedly installed at the end of the radial inner steel bar. The end of the radial steel bar sleeve is arranged on the outer circumferential surface of the prefabricated upper ring component.

[0007] Furthermore, the rebar sleeve assembly consists of multiple sets, and these multiple sets of rebar sleeve assemblies are evenly distributed along the circumferential direction of the prefabricated upper ring component.

[0008] Furthermore, a rib beam reinforcement sleeve assembly is provided inside the rib beam. The reinforcement sleeve assembly includes vertical reinforcement bars pre-embedded in the rib beam and vertical reinforcement sleeves installed at the ends of the vertical reinforcement bars. The ends of the vertical reinforcement sleeves protrude from the surface of the rib beam.

[0009] Furthermore, a reinforcing cage assembly is installed on the outer circumference of the precast upper ring component. The reinforcing cage assembly includes an annular reinforcing cage, transverse L-shaped reinforcing bars and vertical L-shaped reinforcing bars that are fixedly installed in conjunction with the annular reinforcing cage. The ends of the transverse L-shaped reinforcing bars are fixedly installed in radial reinforcing bar sleeves, and the ends of the vertical L-shaped reinforcing bars are fixedly installed in vertical reinforcing bar sleeves. The reinforcing cage assembly, together with the precast upper ring component, annular column and rib beam, is used to form the post-cast concrete ring layer.

[0010] Furthermore, the prefabricated upper ring component is assembled and cast from two identical semi-rings, with a ring joint formed between the two semi-rings.

[0011] Furthermore, a rectangular steel bar is pre-embedded in the semi-ring body. One end of the rectangular steel bar is installed in the semi-ring body, and the other end extends out of the end face of the semi-ring body and is arranged in the joint of the ring body.

[0012] Furthermore, the rectangular steel bars are multiple and evenly distributed on the semi-ring, and the rectangular steel bars are connected by joint radial steel bars.

[0013] Furthermore, a shear key structure is provided within the semi-ring body.

[0014] Furthermore, the prefabricated upper ring component has an upper ring opening, and the annular pedestal has a pedestal opening.

[0015] The beneficial effects of this technical solution are: The onshore wind turbine generator set of this technical solution uses a prefabricated support platform structure. By setting up prefabricated upper ring components, the height of the overall structure can be effectively adjusted to ensure that the overall structure can be applied to various scenarios. The prefabricated upper ring components are installed on the upper surface of the prefabricated main components. By using the ring column and rib beams in conjunction with the prefabricated upper ring components for post-casting construction, a post-cast concrete ring structure is formed, which ensures the stability and reliability of the prefabricated upper ring components. Attached Figure Description

[0016] Figure 1 This is a top view of the entire utility model; Figure 2 for Figure 1 Schematic diagram of the AA section; Figure 3 This is a schematic diagram of the prefabricated upper ring component of this utility model; Figure 4 for Figure 3 Schematic diagram of the BB section; Figure 5 This is a schematic diagram of the prefabricated main body component of this utility model; Figure 6 This is a schematic cross-sectional view of the prefabricated main component of this utility model; Figure 7 This is a schematic diagram of the rectangular steel bar cross section of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1-Precast main component; 2-Main body joint; 3-Precast upper ring component; 4-Post-cast concrete ring layer; 5-Anchor bolt assembly; 6-Rib beam; 7-Annular base plate; 8-Annular pedestal; 9-Shear key structure; 10-Rectangular reinforcement; 11-Radial reinforcement sleeve; 12-Reinforcement cage assembly; 13-Joint radial reinforcement; 14-Anchor bolt; 15-Upper anchor plate; 16-Lower anchor plate; 21-Ring body joint; 31-Transverse L-shaped reinforcement; 32-Upper ring body opening; 61-Vertical L-shaped reinforcement; 62-Vertical reinforcement sleeve; 81-Pedestal opening. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-4 As shown in the embodiment of this application, a prefabricated support platform structure for an onshore wind turbine generator includes a concrete pad (located at the bottom of the overall structure, not shown in the figure), a prefabricated main body component installed on the concrete pad, and a prefabricated upper ring component 3 installed on the upper end of the prefabricated main body component 1; the prefabricated main body component 1 includes an annular base plate 7, an annular column 8 installed on the annular base plate 7, and a rib beam 6 connecting the annular column 8 and the annular base plate 7; the prefabricated upper ring component 3 is installed on the upper end face of the annular column 8; and a post-cast concrete ring layer 4 is formed between the prefabricated upper ring component 3, the annular column 8, and the rib beam 6.

[0023] like Figures 1-4 As shown, the onshore wind turbine generator set of this technical solution uses a prefabricated support platform structure. Since the height of the prefabricated main component 1 is unique, if a different height for the prefabricated main component 1 is required, a separate matching mold is needed, leading to excessively high development costs. However, due to different application scenarios, soil environments, and load environments for the prefabricated main component 1, the installation height after installation using a single prefabricated main component 1 cannot meet the structural safety requirements. Therefore, a prefabricated upper ring component 3 is designed for use in conjunction with it, ensuring that the safety requirements are met after construction. Furthermore, for different application scenarios, only one prefabricated upper ring component 3 needs to be used. The corresponding precast upper ring component 3 can be of different heights. When manufacturing precast upper ring components 3 of different heights, only the height of the mold needs to be set to different structures to obtain precast components of different heights, which greatly reduces the mold development cost. By setting the precast upper ring component 3, the height of the overall structure can be effectively adjusted to ensure that the overall structure can be applied to various scenarios. The precast upper ring component 3 is installed on the upper surface of the precast main component 1. By cooperating with the annular column 8 and the rib beam 6 to carry out post-casting construction of the precast upper ring component 1, a post-cast concrete ring layer 4 structure is formed, which ensures the stability and reliability of the precast upper ring component 3.

[0024] In this embodiment, a radial steel bar sleeve assembly is provided inside the prefabricated upper ring component 3. The radial steel bar sleeve assembly includes a radial inner steel bar pre-embedded in the prefabricated upper ring component 3 and a radial steel bar sleeve 11 fixedly installed at the end of the radial inner steel bar. The end of the radial steel bar sleeve 11 is arranged on the outer circumferential surface of the prefabricated upper ring component 3.

[0025] like Figures 2-6 As shown, the radial inner reinforcement is pre-stressed (radial i.e., radial reinforcement). Figure 3 The radial direction of the precast upper ring component shown is embedded inside the precast upper ring component 3, and its end is fixedly connected with a radial steel bar sleeve 11. When the radial steel bar sleeve 11 is pre-embedded, it is necessary to ensure that the open end is set on the outer circumferential surface of the precast upper ring component 3. After the precast upper ring component 3 is formed, its radial steel bar sleeve 11 can be used to fix and install the subsequent steel bars, which facilitates the subsequent pouring construction.

[0026] In this embodiment, the rebar sleeve assembly consists of multiple sets, and these multiple sets of rebar sleeve assemblies are evenly distributed along the circumferential direction of the prefabricated upper ring component.

[0027] The steel bar sleeve assemblies are evenly distributed at equal intervals along the circumference of the precast upper ring component 3. After being fixed and connected with steel bars, they form a ring-shaped steel bar structure, which forms a stable structure after subsequent pouring construction.

[0028] In this embodiment, a rib beam 6 is provided with a rib beam rebar sleeve assembly. The rebar sleeve assembly includes vertical rebars pre-embedded in the rib beam 6 and vertical rebar sleeves 62 installed at the ends of the vertical rebars. The ends of the vertical rebar sleeves 62 protrude from the surface of the rib beam 6.

[0029] The upper surface of the rib beam 6 also adopts the same arrangement as the precast upper ring component 3, that is, it forms a vertical steel bar sleeve 62 structure. After being fixed and installed with steel bars, it is convenient to cooperate with the subsequent concrete pouring to form a stable structure.

[0030] In this embodiment, a steel cage assembly 12 is installed on the outer circumference of the precast upper ring component 3. The steel cage assembly 12 includes an annular steel cage, a transverse L-shaped steel bar 31 and a vertical L-shaped steel bar 61 that are fixedly installed in conjunction with the annular steel cage. The ends of the transverse L-shaped steel bars 31 are fixedly installed in the radial steel bar sleeve 11, and the ends of the vertical L-shaped steel bars 61 are fixedly installed in the vertical steel bar sleeve 62. The steel cage assembly 12, together with the precast upper ring component 3, the annular column 8 and the rib beam 6, is poured to form the post-cast concrete ring layer 4.

[0031] like Figures 1-6As shown, the main structural steel cage of the steel cage assembly 12 is tied and installed with the horizontal L-shaped steel bars 31 and the vertical L-shaped steel bars 61 to form a stable structure. After that, the concrete pouring is carried out. The overall structure ensures that the upper ring component 3, the annular column 8 and the rib beam 6 are stable and reliable after forming. The overall steel cage assembly 12 ensures that the overall structural strength performance meets the construction requirements.

[0032] In this embodiment, the prefabricated upper ring component 3 is assembled and cast from two identical semi-rings, with a ring joint 21 formed between the two semi-rings.

[0033] like Figure 3 As shown, the prefabricated upper ring component 3 is constructed by assembling two identical semi-ring structures and then casting them to form an integral structure. The two identical semi-ring structures are assembled to form a ring joint 21 structure, which facilitates subsequent casting construction. The ring joint 21 is set in four positions, including the ring joints at the two inner circumferences and the ring joint at the outer circumference. The gap between the two ring joint positions is small and does not interfere with the subsequent installation of the anchor bolt assembly.

[0034] In this embodiment, a rectangular steel bar 10 is pre-embedded in the semi-ring body. One end of the rectangular steel bar 10 is installed in the semi-ring body, and the other end extends out of the end face of the semi-ring body and is arranged in the joint 21 of the ring body.

[0035] like Figures 3-6 As shown, a rectangular steel bar 10 is provided at the joint 21 of the two semi-rings. Half of the rectangular steel bar 10 is embedded in the semi-ring, and the other half extends out of the semi-ring and protrudes into the joint 21, ensuring the stability and reliability of the rectangular steel bar 10. The rectangular steel bars 10 are distributed at the inner end faces of the two semi-rings, and there is no interference between the rectangular steel bars 10 of the two semi-rings after the two semi-ring structures are assembled. The rectangular steel bars 10 are evenly spaced, which facilitates the subsequent installation with the radial steel bar 13 of the joint.

[0036] In this embodiment, there are multiple rectangular steel bars 10, and the multiple rectangular steel bars 10 are evenly distributed on the semi-ring body. The rectangular steel bars 10 are connected with joint radial steel bars 13.

[0037] like Figure 7 As shown, after two identical semi-rings are assembled, a staggered overlapping area is formed in the middle. The radial steel bars 13 pass through the rectangle and are tied and installed at the corresponding positions, so that the radial steel cage structure is formed inside the ring joint 21. After subsequent pouring construction, the strength of the overall structure is improved to meet the construction requirements.

[0038] In this embodiment, a shear key structure 9 is provided within the semi-ring body.

[0039] like Figure 1-6 As shown, the shear key structures 9 within the semi-ring are evenly spaced, forming a stable shear-resistant structure in conjunction with subsequent pouring. Of course, the main body joint 2 of the precast main component 1 also adopts the same structural design as the joint 21 of the ring, and subsequent pouring construction is carried out to meet the overall construction requirements.

[0040] In this embodiment, the prefabricated upper ring component 3 is provided with an upper ring opening 32, and the annular column 8 is provided with a column opening 81.

[0041] The upper ring opening 32 on the precast upper ring component 3 corresponds to the column opening 81 on the annular column 8 for installation, which facilitates the installation of the anchor rod 14 of the anchor rod assembly 5. The upper anchor plate 15 and the lower anchor plate 16 are installed in conjunction with the anchor rod 14. Subsequent pouring construction is carried out to ensure that the overall structural performance meets the construction requirements.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fabricated support platform construction for onshore wind turbine generators, characterised in that: It includes a concrete cushion layer, a precast main body component (1) installed on the concrete cushion layer, and a precast upper ring component (3) installed on the upper end of the precast main body component (1); the precast main body component (1) includes an annular base plate (7), an annular column (8) installed on the annular base plate (7), and a rib beam (6) connecting the annular column (8) and the annular base plate (7); the precast upper ring component (3) is installed on the upper end face of the annular column (8); a post-cast concrete ring layer (4) is formed between the precast upper ring component (3), the annular column (8), and the rib beam (6).

2. The prefabricated support platform structure for onshore wind turbine generators according to claim 1, characterized in that: The prefabricated upper ring component (3) is provided with a radial steel bar sleeve assembly. The radial steel bar sleeve assembly includes a radial inner steel bar pre-embedded in the prefabricated upper ring component (3) and a radial steel bar sleeve (11) fixedly installed at the end of the radial inner steel bar. The end of the radial steel bar sleeve (11) is arranged on the outer circumferential surface of the prefabricated upper ring component (3).

3. The prefabricated support platform structure for onshore wind turbine generator sets according to claim 2, characterized in that: The steel bar sleeve assembly consists of multiple sets, and these multiple sets of steel bar sleeve assemblies are evenly distributed along the circumferential direction of the prefabricated upper ring component (3).

4. The prefabricated support platform structure for onshore wind turbine generator sets according to claim 2, characterized in that: The rib beam (6) is provided with a rib beam steel bar sleeve assembly. The steel bar sleeve assembly includes vertical steel bars pre-embedded in the rib beam and vertical steel bar sleeves (62) installed at the ends of the vertical steel bars. The ends of the vertical steel bar sleeves (62) protrude from the surface of the rib beam (6).

5. The prefabricated support platform structure for onshore wind turbine generator sets according to claim 4, characterized in that: A steel cage assembly (12) is installed on the outer circumference of the precast upper ring component (3). The steel cage assembly (12) includes an annular steel cage, a transverse L-shaped steel bar (31) and a vertical L-shaped steel bar (61) that are fixedly installed in conjunction with the annular steel cage. The end of the transverse L-shaped steel bar (31) is fixedly installed in the radial steel bar sleeve (11), and the end of the vertical L-shaped steel bar (61) is fixedly installed in the vertical steel bar sleeve (62). The steel cage assembly (12) is cast in conjunction with the precast upper ring component (3), the annular column (8) and the rib beam (6) to form the post-cast concrete ring layer (4).

6. The prefabricated support platform structure for onshore wind turbine generators according to claim 1, characterized in that: The prefabricated upper ring component (3) is assembled and cast from two identical semi-rings, with a ring joint (21) formed between the two semi-rings.

7. The prefabricated support platform structure for onshore wind turbine generator sets according to claim 6, characterized in that: A rectangular steel bar (10) is pre-embedded in the semi-ring body. One end of the rectangular steel bar (10) is installed in the semi-ring body, and the other end extends out of the end face of the semi-ring body and is arranged in the joint (21) of the ring body.

8. The prefabricated support platform structure for onshore wind turbine generators according to claim 7, characterized in that: The rectangular steel bars (10) are multiple and the multiple rectangular steel bars (10) are evenly distributed on the semi-ring body, and the rectangular steel bars (10) are connected with joint radial steel bars (13).

9. The prefabricated support platform structure for onshore wind turbine generator sets according to claim 8, characterized in that: A shear key structure (9) is provided within the semi-ring.

10. The prefabricated support platform structure for onshore wind turbine generators according to claim 1, characterized in that: The prefabricated upper ring component (3) has an upper ring opening (32), and the annular column (8) has a column opening (81).

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