Frame type variable cross-section wind tower construction structure and method

Abstract

The application provides a frame variable cross-section wind tower construction structure, which comprises a raft foundation, a wind tower bottom plate structure, a wind tower frame beam structure, a wind tower cantilever platform and a roof plate structure, and the construction structure comprises: an outer scaffold structure; a wind tower bottom plate support structure; a combined platform; a frame beam support frame structure; a ring beam support structure; a roof plate support structure; the wind tower bottom plate support structure, the frame beam support frame, the ring beam support structure and the roof plate support structure are connected with the outer scaffold structure through a fastener steel pipe. Through the adoption of the internal and external support system combined construction, the construction structure can be applied to different types of frame variable cross-section wind tower construction. According to the structural characteristics of the wind tower, the planar arrangement and the step distance of the support are adjusted, the stress is clear, the structure is simple, after the completion of the support system installation, the support frame and the scaffold are connected together through the fastener support, the whole frame body is fixed, and the stability of the whole body in the construction process is ensured.

Description

Technical Field

[0001] The present invention relates to the field of wind tower construction, and in particular to a frame-type variable-cross-section wind tower construction structure and method. Background Art

[0002] Frame-type variable-section cast-in-place wind towers are typically constructed using a combination of fasteners, bowl-hook brackets, and steel pipe supports. However, due to market irregularities and the difficulty of acceptance for these brackets, especially the frequent accidents caused by fastener brackets, they are gradually being replaced. Due to the tilted nature of variable-section wind towers, a common formwork system cannot be used for construction, especially when the size varies. A separate support and formwork system is required.

[0003] In order to solve the above problems, it is urgent to invent a construction method that is easy to erect and dismantle, has reasonable force, can meet the safety and structural quality requirements of high-support formwork construction of beam and slab structures, can well solve the problem of overall structural stability during the cast-in-place construction of wind towers, and can also reduce the construction cost of frame-type variable-section wind towers. Summary of the Invention

[0004] The main purpose of the present invention is to provide a frame-type variable-section wind tower construction structure and method to solve the shortcomings in the background technology, improve the construction efficiency of the cast-in-place construction of the wind tower, increase the versatility of the bracket for the height change or variable-section cast-in-place construction of the structure, and reduce the input consumption of construction measures and materials.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a frame-type variable-section wind tower construction structure, including a raft foundation, a wind tower bottom plate structure, a wind tower frame beam structure, a wind tower cantilever platform and a roof panel structure, the construction structure includes:

[0006] The outer scaffolding structure is erected along the outside of the raft foundation to provide external support for the wind tower construction. The outer scaffolding structure is composed of multiple scaffolding units and can be erected upwards along with the construction height of the wind tower;

[0007] The wind tower base plate support structure is erected on the raft foundation to provide construction support for the wind tower base plate structure;

[0008] The combined platform is erected on the wind tower base structure to provide internal support for wind tower construction;

[0009] The frame beam support frame structure is erected on the combined platform and is used for the construction support of the frame beam structures of wind towers of different heights. The frame beam support frame structure is composed of multiple frame beam support frame units and can be erected upwards according to the construction height of the wind tower frame beam structure.

[0010] The ring beam support structure is installed on the frame beam support frame and the outer scaffolding structure to support the construction of the wind tower cantilever platform;

[0011] The roof panel support structure is erected on the cantilevered platform of the wind tower and is used to support the construction of the roof panel structure;

[0012] The wind tower base plate support structure, frame beam support frame, ring beam support structure and roof panel support structure are all connected to the outer scaffolding structure through fastener steel pipes.

[0013] In a preferred embodiment, a construction platform is set up on the top of the outer scaffolding structure, and a protective railing is provided on the construction platform.

[0014] In the preferred embodiment, the wind tower base plate support structure includes a base plate buckle support frame and a base plate frame beam support frame erected on the raft foundation, and a casting formwork laid on the top of the base plate buckle support frame and the base plate frame beam support frame. The base plate buckle support frame, the base plate frame beam support frame and the outer scaffolding structure are connected by fastener steel pipes.

[0015] In a preferred embodiment, the combined platform includes a plurality of platform main beams distributed on the wind tower base plate structure, a plurality of platform secondary beams transversely erected on the wind tower base plate structure, and a platform panel arranged on the platform secondary beams.

[0016] In the preferred embodiment, the frame beam support frame unit includes a frame beam buckle support frame, a frame beam support frame arranged on the outside of the frame beam buckle support frame, and a frame beam casting formwork laid on the top of the frame beam buckle support frame and the frame beam support frame, wherein the bottom frame beam support frame unit is erected on the combined platform, and the frame beam buckle support frame, the frame beam support frame and the outer scaffolding structure are connected by fastener steel pipes.

[0017] In the preferred embodiment, the ring beam support structure includes a number of ring beam support platforms arranged in a ring shape between the frame beam support frame structure and the outer scaffolding structure, a cantilever support frame arranged on the ring beam support platform, and a cantilever platform casting formwork laid on the top of the cantilever support frame and the frame beam support frame structure, wherein the ring beam support platform includes a number of support main beams arranged between the frame beam support frame structure and the outer scaffolding structure, and a support panel arranged on the support main beam.

[0018] In the preferred embodiment, the roof panel support structure includes an interlayer platform erected on the cantilever platform of the wind tower, a roof disc support frame and an eaves support frame erected on the interlayer platform, and a roof casting formwork laid on the roof disc support frame and the eaves support frame. The roof disc support frame, the eaves support frame and the outer scaffolding structure are connected by fastener steel pipes.

[0019] In a preferred embodiment, the interlayer platform includes an interlayer main beam mounted on the cantilevered platform of the wind tower, an interlayer secondary beam mounted on the interlayer main beam, and an interlayer panel mounted on the interlayer secondary beam.

[0020] In the preferred embodiment, the bottom of the platform panel and the platform secondary beam are both provided with an array of holders, and the platform main beam, the platform secondary beam and the holder are all provided with corresponding sockets, locking bolts are inserted into the sockets, and the external threads of the locking bolts are installed with locking nuts. Positioning seats are also provided on the platform main beam and the platform secondary beam, and the positioning seats are located at the two ends of the sockets.

[0021] The method includes:

[0022] S1. Construction of raft foundation: leveling the site, constructing the wind tower raft foundation, and pouring the support cushion concrete;

[0023] S2. Construction of the wind tower base plate structure: erecting the outer scaffolding structure and the wind tower base plate support structure on the cushion concrete and raft foundation, connecting the outer scaffolding structure and the wind tower base plate support structure with fastener steel pipes, completing the reinforcement binding and formwork installation of the bottom frame columns, bottom frame beams and base plate according to the design, and pouring concrete;

[0024] S3. Erect the combined platform and hoist it when the concrete strength of the wind tower base plate structure meets the design requirements;

[0025] S4. Construction of the first-layer wind tower frame beam structure: erecting the frame beam support frame structure on the combined platform, and installing the internal frame beam support frame structure and the outer scaffolding structure of the wind tower to the first-layer frame beam position. The frame beam support frame structure and the outer scaffolding structure are connected by fastener steel pipes. Then, the reinforcement of the frame beams and frame columns is tied and the formwork is installed. After the construction is completed, concrete is poured;

[0026] S5, multi-layer wind tower frame beam structure construction, according to the same steps as the first layer wind tower frame beam structure in step S4, until the top wind tower frame beam structure is cast, after the frame system is completed, the tower wall autoclaved aerated concrete block masonry construction is carried out, during construction, according to the inward tilt of the wind tower, the installation spacing of the wind tower frame beam structure is adjusted;

[0027] S6. Construction of the wind tower cantilever platform: assemble the ring beam support platform, erect the ring beam support platform on the top wind tower frame beam structure, place the cantilever support frame of the wind tower cantilever platform on the ring beam support platform, then continue to erect the wind tower internal frame beam support frame structure and outer scaffolding structure, and connect them with fasteners and steel pipes. After the steel bars of the cantilever platform are tied and the formwork is installed, pour concrete;

[0028] S7. Roof panel structure construction: dismantle the internal frame beam support structure below the wind tower cantilever platform, install the internal staircase, and build an inter-level platform on the wind tower cantilever platform. Set up the roof plate support frame and eave support frame, continue to raise the outer scaffolding structure, connect the roof plate support frame and eave support frame to the outer scaffolding structure with fastener steel pipes, complete the steel bar binding and formwork installation processes, and pour the roof panel structure concrete;

[0029] S8. After the construction is completed and the wind tower concrete meets the design requirements, the roof panel formwork and support structure are removed, and other ancillary projects are constructed. After the ancillary projects are completed, the outer scaffolding structure is removed, the site is restored, and the wind tower construction is completed.

[0030] The present invention provides a frame-type variable-section wind tower construction structure and method, which has the following beneficial effects:

[0031] 1. By adopting the combined construction of internal and external support systems, it can be applied to the construction of different types of frame-type variable-section wind towers. The plane layout and pitch of the bracket can be adjusted according to the structural characteristics of the wind tower.

[0032] 2. By using the disc bracket as the main support system for wind tower construction, the force is clear and the structure is simple. After the bracket system is installed, the fastener bracket is used to connect the support frame and scaffolding together to fix the entire frame to ensure the overall stability during the construction process.

[0033] 3. By mainly using disc brackets, fastener-type steel pipes, I-beams, steel plates and other materials, the material acquisition channels are wide and the construction cost is low. At the same time, considering the small operating area of ​​the wind tower, the bracket can be quickly assembled and disassembled, which speeds up the construction progress and realizes the combined installation and disassembly of the platform system, which can have a significant effect on improving the work efficiency of the cast-in-place construction of the wind tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and examples:

[0035] Figure 1 This is a construction diagram of the wind tower base plate structure of the present invention;

[0036] Figure 2 It is a structural diagram of the combined platform of the present invention;

[0037] Figure 3 This is a construction diagram of the wind tower frame beam structure of the present invention;

[0038] Figure 4 This is a construction structure diagram of the wind tower cantilever platform of the present invention;

[0039] Figure 5 This is a structural diagram of the ring beam support platform of the present invention;

[0040] Figure 6 This is a construction diagram of the roof panel structure of the present invention;

[0041] Figure 7 It is a structural diagram of the interlayer platform of the present invention;

[0042] Figure 8 This is a diagram of the installation structure of the combined platform of the present invention;

[0043] Figure 9 This invention Figure 8 Structural cross-section view;

[0044] In the figure: 1 raft foundation; 2 wind tower bottom plate structure; 201 bottom plate buckle support frame; 202 bottom plate frame beam support frame; 203 casting formwork; 4 outer scaffolding structure; 5 construction platform; 6 guardrail; 7 fastener steel pipe; 8 combination platform; 801 platform main beam; 802 platform secondary beam; 803 platform panel; 810 clamping seat; 811 socket; 812 locking bolt; 813 locking nut; 814 positioning seat; 9 wind tower frame beam structure; 901 frame beam buckle support frame; 902 frame beam support frame; 903 frame beam casting formwork; 12 ring beam support platform; 1201 support main beam; 1202 support panel; 13 wind tower cantilever platform; 1301 cantilever support frame; 1304 cantilever platform casting formwork; 14 inter-story platform; 1401 inter-story main beam; 1402 inter-story secondary beam; 1403 inter-story panel; 15 roof panel structure; 1501 roof buckle support frame; 1502 eaves support frame; 1503 roof casting formwork. DETAILED DESCRIPTION

[0045] Example 1

[0046] like Figure 1-7 As shown, the frame-type variable-section wind tower construction structure includes a raft foundation 1, a wind tower bottom plate structure 2, a wind tower frame beam structure 9, a wind tower cantilever platform 13 and a roof panel structure 15. The construction structure includes:

[0047] The outer scaffolding structure 4 is erected along the outside of the raft foundation 1 to provide external support for the construction of the wind tower. The outer scaffolding structure 4 is composed of a plurality of scaffolding units and can be erected upwards according to the construction height of the wind tower.

[0048] The wind tower base plate support structure is erected on the raft foundation 1 and is used to provide construction support for the wind tower base plate structure 2;

[0049] The combined platform 8 is erected on the wind tower base plate structure 2 and is used to provide internal support for the wind tower construction;

[0050] The frame beam support frame structure is erected on the combined platform 8 and is used for the construction support of the frame beam structure 9 of wind towers of different heights. The frame beam support frame structure is composed of a plurality of frame beam support frame units, and can be erected upwards according to the construction height of the wind tower frame beam structure 9;

[0051] The ring beam support structure is installed on the frame beam support frame and the outer scaffolding structure 4 and is used for the construction support of the wind tower cantilever platform 13;

[0052] The roof panel support structure is erected on the wind tower cantilever platform 13 and is used to support the construction of the roof panel structure 15;

[0053] The wind tower base plate support structure, frame beam support frame, ring beam support structure and roof panel support structure are all connected to the outer scaffolding structure 4 through fastener steel pipes 7.

[0054] During construction, an internal and external support system is formed through the cooperation between the outer scaffolding structure 4 and the frame beam support frame structure to ensure the stability of the construction. At the same time, the frame beam support frame structure composed of multiple frame beam support frame units can be applied to the construction of different types of frame-type variable-section wind towers, which is convenient for support according to the characteristics of the inclined wall of the variable-section wind tower, and the plane layout and pitch of the bracket can be adjusted. At the same time, the outer scaffolding structure 4 is connected to the frame beam support frame structure using fastener steel pipes 7 to ensure the stability of the support.

[0055] In the preferred embodiment, a construction platform 5 is set up on the top of the outer scaffolding structure 4, and a guardrail 6 is set on the construction platform 5 to facilitate construction workers to carry out construction. The guardrail 6 effectively ensures construction safety. It should be noted that when it is necessary to erect the outer scaffolding structure 4 upwards, the construction platform 5 is first removed from it. After the outer scaffolding structure 4 is erected, it is erected on the outer scaffolding structure 4 to ensure that as the outer scaffolding structure 4 is erected upwards, the construction platform 5 is always erected on the top of the outer scaffolding structure 4.

[0056] In the preferred embodiment, the wind tower base plate support structure includes a base plate buckle support frame 201 and a base plate frame beam support frame 202 erected on the raft foundation 1, and a casting formwork 203 laid on the top of the base plate buckle support frame 201 and the base plate frame beam support frame 202. The base plate buckle support frame 201, the base plate frame beam support frame 202 and the outer scaffolding structure 4 are connected by a fastener steel pipe 7.

[0057] In the preferred embodiment, the combined platform 8 includes several platform main beams 801 distributed on the wind tower base plate structure 2, several platform secondary beams 802 transversely erected on the wind tower base plate structure 2, and platform panels 803 arranged on the platform secondary beams 802. In this embodiment, the number of platform main beams 801 is five, and the number of platform secondary beams 802 is eleven, thereby ensuring the stability of the platform panel 803.

[0058] In the preferred embodiment, the frame beam support frame unit includes a frame beam buckle support frame 901, a frame beam support frame 902 arranged on the outside of the frame beam buckle support frame 901, and a frame beam casting template 903 laid on the top of the frame beam buckle support frame 901 and the frame beam support frame 902, wherein the bottom frame beam support frame unit is erected on the combined platform 8, and the frame beam buckle support frame 901, the frame beam support frame 902 and the outer scaffolding structure 4 are connected by a fastener steel pipe 7.

[0059] It should be noted that when erecting upward, the frame beam buckle support frame 901 is erected upward from the center point of the wind tower base plate structure 2, and the frame beam support frame 902 adjusts the distance between it and the frame beam buckle support frame 901 as the variable-section wind tower tilts inward.

[0060] In the preferred embodiment, the ring beam support structure includes a number of ring beam support platforms 12 erected in a ring shape between the frame beam support frame structure and the outer scaffolding structure 4, a cantilever support frame 1301 erected on the ring beam support platform 12, and a cantilever platform casting template 1304 laid on the top of the cantilever support frame 1301 and the frame beam support frame structure, wherein the ring beam support platform 12 includes a number of support main beams 1201 erected between the frame beam support frame structure and the outer scaffolding structure 4, and a support panel 1202 erected on the support main beam 1201. In this embodiment, the number of ring beam support platforms 12 is six, which are arranged in a circle with the center of the wind tower as the origin.

[0061] It should be noted that when constructing the wind tower cantilever platform 13 , the frame beam buckle support frame 901 needs to be erected to the height of the wind tower cantilever platform 13 , and there is no need to erect the frame beam support frame 902 at this time.

[0062] In the preferred embodiment, the roof panel support structure includes an interlayer platform 14 erected on the wind tower cantilever platform 13, a roof buckle support frame 1501 and an eaves support frame 1502 erected on the interlayer platform 14, and a roof casting formwork 1503 laid on the roof buckle support frame 1501 and the eaves support frame 1502. The roof buckle support frame 1501, the eaves support frame 1502 and the outer scaffolding structure 4 are connected by a fastener steel pipe 7.

[0063] In the preferred embodiment, the interlayer platform 14 includes an interlayer main beam 1401 mounted on the wind tower cantilever platform 13, an interlayer secondary beam 1402 mounted on the interlayer main beam 1401, and an interlayer panel 1403 mounted on the interlayer secondary beam 1402. In this embodiment, the interlayer main beam 1401 is a five-pointed star shape welded from I-beams, and the interlayer secondary beam 1402 is formed by concentrically welding several I-beam ends arranged in a circle. The interlayer main beam 1401, the interlayer secondary beam 1402 and the interlayer panel 1403 are fixed by welding.

[0064] Example 2

[0065] Further illustrate with reference to Example 1, Figure 1-7 The structure shown is a construction method for a frame-type variable-section wind tower, which includes:

[0066] S1. Construction of raft foundation 1: level the site, construct the wind tower raft foundation 1, and pour the support cushion concrete;

[0067] S2, construction of the wind tower base plate structure 2, erecting the outer scaffolding structure 4, the base plate buckle support frame 201 and the base plate frame beam support frame 202 on the cushion concrete and raft foundation 1, and connecting the outer scaffolding structure 4, the base plate buckle support frame 201 and the base plate frame beam support frame 202 through the fastener steel pipe 7, and completing the reinforcement binding of the bottom frame column, bottom frame beam and base plate and the installation of the casting formwork 203 according to the design, and pouring concrete;

[0068] S3, erecting the combined platform 8, completing the assembly of the platform main beam 801, the platform secondary beam 802, and the platform panel 803, and hoisting the combined platform 8 after the concrete strength of the wind tower bottom plate structure 2 meets the design requirements;

[0069] S4, construction of the first-layer wind tower frame beam structure 9, setting up the frame beam support frame structure on the combined platform 8, the frame beam buckle support frame 901, the frame beam support frame 902 and the frame beam casting template 903, and installing the wind tower internal frame beam support frame structure and the outer scaffolding structure 4 to the first-layer frame beam position, the frame beam buckle support frame 901, the frame beam support frame 902 and the outer scaffolding structure 4 are connected by fastener steel pipe 7, and then the frame beam and frame column reinforcement are tied and the template is installed. After the construction is completed, pour concrete;

[0070] S5, construction of the multi-layer wind tower frame beam structure 9, following the same steps as the first-layer wind tower frame beam structure 9 in step S4, until the top wind tower frame beam structure 9 is cast. After the frame system is completed, the tower wall autoclaved aerated concrete blocks are laid. During construction, the spacing of the frame beam support frames 902 is adjusted according to the inward tilt of the wind tower;

[0071] S6, the wind tower cantilever platform 13 is constructed, the ring beam support platform 12 is assembled, the ring beam support platform 12 is erected on the top wind tower frame beam structure 9, the cantilever support frame 1301 of the wind tower cantilever platform 13 is placed on the ring beam support platform 12, and then the frame beam buckle support frame 901 and the outer scaffolding structure 4 of the internal frame beam support frame structure of the wind tower are continued to be erected and connected through the fastener steel pipe 7. After the steel bars of the cantilever platform are tied and the formwork is installed, concrete is poured;

[0072] S7, construction of the roof panel structure 15, dismantling the internal frame beam support structure below the wind tower cantilever platform 13, installing the internal stairs, and erecting the interlayer platform 14 on the wind tower cantilever platform 13, and setting up the roof buckle support frame 1501 and the eaves support frame 1502, continuing to raise the outer scaffolding structure 4, connecting the roof buckle support frame 1501 and the eaves support frame 1502 to the outer scaffolding structure 4 through the fastener steel pipe 7, completing the steel bar binding and formwork installation processes, pouring concrete for the roof panel structure 15;

[0073] S8. After the construction is completed and the wind tower concrete meets the design requirements, the roof panel formwork and support structure are removed, and other ancillary projects are constructed. After the ancillary projects are completed, the outer scaffolding structure 4 is removed, the site is restored, and the wind tower construction is completed.

[0074] Example 3

[0075] Further illustrate with reference to Example 1, Figure 8-9 The structure shown in FIG80 is a detachable structure adopted between the platform panel 803, the platform secondary beam 802, and the platform main beam 801. Specifically, the bottom of the platform panel 803 and the platform secondary beam 802 are arranged with a bracket 810 in an array, and the platform main beam 801, the platform secondary beam 802 and the bracket 810 are provided with corresponding sockets 811, and a locking bolt 812 is inserted into the socket 811, and a locking nut 813 is installed on the external thread of the locking bolt 812. The bracket 810 is an inverted U-shape, and the width in the middle is adapted to the width of the platform secondary beam 802 and the platform main beam 801, so as to facilitate the embedded installation effect. The locking bolt 812 penetrates the bracket 810 and the socket 811 on the platform secondary beam 802 or the platform main beam 801 to achieve connection, and finally is locked by the locking nut 813, so as to facilitate disassembly and assembly, and achieve the effect of easy transportation.

[0076] In addition, positioning seats 814 are welded on the platform main beam 801 and the platform secondary beam 802. The positioning seats 814 are located at the two ends of the socket 811. The positioning seats 814 are composed of two positioning strips centered on the socket 811. The spacing between the two positioning strips is adapted to the spacing between the side walls of the socket 810, which facilitates the rapid positioning and installation of the socket 810.

[0077] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A frame-type variable-section wind tower construction structure, comprising a raft foundation (1), a wind tower bottom plate structure (2), a wind tower frame beam structure (9), a wind tower cantilever platform (13) and a roof panel structure (15), characterized in that: The construction structure includes: An outer scaffolding structure (4) is erected along the outside of the raft foundation (1) to provide external support for the construction of the wind tower. The outer scaffolding structure (4) is composed of a plurality of scaffolding units and can be erected upwards according to the construction height of the wind tower. A wind tower base plate support structure is erected on the raft foundation (1) and is used to provide construction support for the wind tower base plate structure (2); A combined platform (8) is erected on the wind tower base plate structure (2) and is used to provide internal support for wind tower construction; A frame beam support frame structure is erected on a combined platform (8) and is used for construction support of wind tower frame beam structures (9) of different heights. The frame beam support frame structure is composed of a plurality of frame beam support frame units spliced ​​together and assembled, and can be erected upwards according to the construction height of the wind tower frame beam structure (9). The frame beam support frame unit includes a frame beam buckle support frame (901) and a frame beam support frame (902) arranged outside the frame beam buckle support frame (901). The frame beam buckle support frame (901) is erected upwards from the center point of the wind tower bottom plate structure (2). The frame beam support frame (902) adjusts the distance between the frame beam buckle support frame (901) and the frame beam buckle support frame (901) as the variable-section wind tower tilts inwards. A ring beam support structure is erected on the frame beam support frame and the outer scaffolding structure (4) and is used for construction support of the wind tower cantilever platform (13); A roof panel support structure is erected on the wind tower cantilever platform (13) and is used for supporting the construction of the roof panel structure (15); The wind tower base plate support structure, frame beam support frame, ring beam support structure and roof panel support structure are all connected to the outer scaffolding structure (4) through fastener steel pipes (7).

2. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: A construction platform (5) is provided on the top of the outer scaffolding structure (4), and a protective railing (6) is provided on the construction platform (5).

3. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: The wind tower base plate support structure comprises a base plate buckle support frame (201) and a base plate frame beam support frame (202) erected on a raft foundation (1), and a casting template (203) laid on top of the base plate buckle support frame (201) and the base plate frame beam support frame (202), wherein the base plate buckle support frame (201), the base plate frame beam support frame (202) and the outer scaffolding structure (4) are connected via a fastener steel pipe (7).

4. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: The combined platform (8) comprises a plurality of platform main beams (801) distributed on the wind tower base plate structure (2), a plurality of platform secondary beams (802) transversely erected on the wind tower base plate structure (2), and a platform panel (803) arranged on the platform secondary beams (802).

5. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: The frame beam support frame unit also includes a frame beam casting template (903) laid on the top of the frame beam buckle support frame (901) and the frame beam support frame (902), wherein the bottom frame beam support frame unit is erected on the combined platform (8), and the frame beam buckle support frame (901), the frame beam support frame (902) and the outer scaffolding structure (4) are connected by a fastener steel pipe (7).

6. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: The ring beam support structure comprises a plurality of ring beam support platforms (12) erected in a circular manner between the frame beam support frame structure and the outer scaffolding structure (4), a cantilever support frame (1301) erected on the ring beam support platform (12), and a cantilever platform casting template (1304) laid on the top of the cantilever support frame (1301) and the frame beam support frame structure, wherein the ring beam support platform (12) comprises a plurality of support main beams (1201) erected between the frame beam support frame structure and the outer scaffolding structure (4), and a support panel (1202) erected on the support main beam (1201).

7. The frame-type variable-section wind tower construction structure according to claim 1 is characterized by: The roof panel support structure comprises an interlayer platform (14) erected on the wind tower cantilever platform (13), a roof plate buckle support frame (1501) and an eaves support frame (1502) erected on the interlayer platform (14), and a roof casting template (1503) laid on the roof plate buckle support frame (1501) and the eaves support frame (1502), and the roof plate buckle support frame (1501), the eaves support frame (1502) and the outer scaffolding structure (4) are connected via a fastener steel pipe (7).

8. The frame-type variable-section wind tower construction structure according to claim 7 is characterized by: The interlayer platform (14) comprises an interlayer main beam (1401) erected on the wind tower cantilever platform (13), an interlayer secondary beam (1402) erected on the interlayer main beam (1401), and an interlayer panel (1403) erected on the interlayer secondary beam (1402).

9. The frame-type variable-section wind tower construction structure according to claim 4 is characterized by: The bottoms of the platform panel (803) and the platform secondary beam (802) are both provided with a card seat (810) in an array. The platform main beam (801), the platform secondary beam (802) and the card seat (810) are all provided with corresponding sockets (811). A locking bolt (812) is inserted into the socket (811). The external thread of the locking bolt (812) is installed with a locking nut (813). The platform main beam (801) and the platform secondary beam (802) are also provided with positioning seats (814). The positioning seats (814) are located at two ends of the socket (811).

10. The construction method of a frame-type variable-section wind tower is characterized by: The method includes: S1. Construction of raft foundation (1): leveling the site, constructing the wind tower raft foundation (1), and pouring the support cushion concrete; S2, construction of the wind tower base plate structure (2), erecting the outer scaffolding structure (4) and the wind tower base plate support structure on the cushion concrete and raft foundation (1), connecting the outer scaffolding structure (4) and the wind tower base plate support structure through the fastener steel pipe (7), and completing the reinforcement binding and formwork installation of the bottom frame column, bottom frame beam and base plate according to the design, and pouring concrete; S3, erecting the combined platform (8), and hoisting the combined platform (8) when the concrete strength of the wind tower base plate structure (2) meets the design requirements; S4, construction of the first-layer wind tower frame beam structure (9), setting up the frame beam support frame structure on the combined platform (8), and installing the wind tower internal frame beam support frame structure and the outer scaffolding structure (4) to the first-layer frame beam position, connecting the frame beam support frame structure and the outer scaffolding structure (4) through the fastener steel pipe (7), and then carrying out the steel bar binding and formwork installation of the frame beam and frame column, and pouring concrete after the construction is completed; S5, construction of the multi-layer wind tower frame beam structure (9), following the same steps as the first-layer wind tower frame beam structure (9) in step S4, until the top wind tower frame beam structure (9) is cast and completed. After the frame system is completed, the tower wall autoclaved aerated concrete blocks are laid. During construction, the installation spacing of the wind tower frame beam structure (9) is adjusted according to the inward tilt of the wind tower; S6, construction of the wind tower cantilever platform (13), assembling the ring beam support platform (12), erecting the ring beam support platform (12) on the top wind tower frame beam structure (9), placing the cantilever support frame (1301) of the wind tower cantilever platform (13) on the ring beam support platform (12), and then continuing to erect the wind tower internal frame beam support frame structure and the outer scaffolding structure (4), and connecting them through the fastener steel pipe (7), after the steel bar binding and formwork installation of the cantilever platform are completed, pouring concrete; S7, construction of the roof panel structure (15), dismantling the internal frame beam support frame structure below the wind tower cantilever platform (13), installing the internal stairs, and erecting the interlayer platform (14) on the wind tower cantilever platform (13), and setting up the roof buckle support frame (1501) and the eaves support frame (1502), and continuing to raise the outer scaffolding structure (4), connecting the roof buckle support frame (1501) and the eaves support frame (1502) with the outer scaffolding structure (4) through the fastener steel pipe (7), completing the steel bar binding and formwork installation process, and pouring the roof panel structure (15) concrete; S8. After the construction is completed and the wind tower concrete meets the design requirements, the roof panel formwork and support structure are removed, and other ancillary projects are constructed. After the ancillary projects are completed, the outer scaffolding structure (4) is removed, the site is restored, and the wind tower construction is completed.

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