CN212106136U

CN212106136U - Tower and tower member

Info

Publication number: CN212106136U
Application number: CN202020496990.3U
Authority: CN
Inventors: 谢强
Original assignee: Shanghai Xiakai Construction Technology Co ltd
Current assignee: Jiangsu Zhengruida New Energy Co.,Ltd.
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-12-08
Anticipated expiration: 2030-04-07

Abstract

The present application provides a tower member and a tower constructed from the tower member. The tower may include a base, a door section, a prestressed strand, a number of vertically sectional prefabricated tower components, and a top tower section. The tower member may include a first tower section and a second tower section. The first tower segments and the second tower segments may be alternately stacked to increase the height of the tower. The first tower section is stacked from standardized first cylindrical bodies. The second tower cylinder section is formed by stacking standardized second cylinder bodies. The first cylindrical body and the second cylindrical body can be flexibly combined, the requirements of towers with different types and hub heights can be met, and the applicability is strong. The tower components and the outer parts of all the towers in the tower barrel at the top are straight barrels, so that the reinforcing bars are uniformly distributed, the required form of the template is uniform, the difficulty in formwork construction is reduced, and the prefabrication efficiency is high.

Description

Tower and tower member

Technical Field

The application relates to the technical field of high towers of land wind generating sets, in particular to a tower and a tower component.

Background

At present, for areas with high wind shear, better yield is often obtained by improving the height of a hub in land matching with medium and large wind turbine generators. The traditional type of high tower for mass application with hub heights of 120m and above is mainly steel tower. The method is limited by the size limitation requirement of long-distance transportation of the steel tower barrel section, the maximum diameter of the bottom of the conventional steel tower barrel is difficult to exceed 4.3-4.5 m, and therefore the development of a flexible steel tower technology is supported, namely the diameter of the bottom of the steel tower barrel is kept not to be increased while the height of the tower is increased, and the thickness of the barrel wall is only increased. The tower resonance problem is generated while the structural utilization efficiency of the tower barrel is reduced, the resonance problem is avoided through damping equipment, the generated energy loss of the wind speed section in the resonance region is caused, and the optimal yield rate which can be achieved by a wind field is reduced; meanwhile, the bolt pretightening force possibly caused by the vibration problem of the flexible steel tower is continuously reduced, so that the later frequent operation and maintenance become a basic requirement. This makes it difficult to achieve the desired results in flexible steel tower designs, construction, full life cycle operation and maintenance and economic gains in excess of 120 meters.

Under the environment of a policy of bidding wind power entering and surfing the internet at a flat price, based on the requirement of optimizing the investment yield of a wind power plant with low and high wind shear, a plurality of rigid tower schemes except a flexible tower appear, including: large diameter segmented steel towers, steel truss towers and pre-fabricated prestressed concrete towers. For large-diameter segmented steel towers and steel truss towers, the problem of later-stage frequent operation and maintenance caused by loosening of connecting bolts under the action of fatigue exists, and a large number of bolt connections have very high requirements on component machining precision and machining equipment, so that the construction period and the construction cost are difficult to compare with those of flexible steel towers, and batch products with higher cost performance cannot be formed in a short time. In contrast, precast concrete towers have been in the technical condition and market environment for mass production.

The existing precast concrete tower is assembled by adopting precast prestress, and the assembling form is different. In order to ensure the integrity of the assembled structure, most prefabricated segmented tower drums require grouting at the splicing seams, expensive grouting materials are consumed, and meanwhile, the field assembling time is prolonged; for a full-circle prefabricated section without vertical slicing, the transportation of a large-diameter annular tower barrel is limited, and further the large-scale development of prefabrication and assembly is hindered; in addition, the existing concrete tower barrel totally or partially adopts the cone barrel type structural characteristic that the outer diameter gradually changes along with the height, so that the consumption of templates and tools in the prefabrication period is increased, the floor area of a prefabrication field is increased, and the construction flexibility of small wind field projects is reduced.

SUMMERY OF THE UTILITY MODEL

For solving template frock consumption, the big, the flexibility low grade technical problem of prefabricated field area that the no gradual change characteristic of current precast concrete tower section of thick bamboo outside diameter brought, the application discloses a tower component, include: a plurality of first tower segments, each of the first tower segments comprising at least one first cylindrical body having a uniform inner diameter; and each second tower section comprises at least one second cylindrical body with gradually changed inner diameter, wherein the first tower sections and the second tower sections are alternately connected, and the cross section sizes of two ends of each second tower section are matched with the cross section size of the corresponding first tower section.

In some embodiments, the at least one second column section in each second column section has the same outer diameter and a uniform increase or decrease in inner diameter.

In some embodiments, the plurality of first tower segments includes at least one stage of first tower segments, each stage of first tower segments having the same outside diameter, and the plurality of second tower segments includes at least one stage of second tower segments, each stage of second tower segments having the same outside diameter.

In some embodiments, the first cylindrical body is circumferentially spliced by a whole ring or at least two split pieces, and the second cylindrical body is circumferentially spliced by a whole ring or at least two split pieces.

In some embodiments, the at least two segments of the first tubular body are joined by a hoop pre-stressed connection and the at least two segments of the second tubular body are joined by a hoop pre-stressed connection.

In some embodiments, the abutting surface of any two adjacent cylinders is inclined downwards from the inner cavity to the outer wall.

The present application also discloses a tower, including: a base; the tower door section is fixedly arranged on the base; the tower component is fixedly arranged on the tower door section, and the diameter of the cross section of the tower component is gradually reduced along the direction far away from the tower door section; a top tower section fixedly connected to the tower member; the steel tower cylinder section is fixed on the top tower cylinder section; and a plurality of prestressed strands arranged in the circumferential direction of the inner walls of the tower member and the top tower tube section to prestress the top tower tube section, the tower member and the tower door section.

In some embodiments, one end of the plurality of pre-stressed strands is connected to the top tower section and the other end is connected to the base, and the plurality of pre-stressed strands run through the base to the top tower section.

In some embodiments, the top tower section and the steel tower section are connected by a vertical prestressed connector.

In some embodiments, the cross-sectional area of the door section decreases as the vertical height increases.

In some embodiments, the interface of any two adjacent components of the door section, the tower member, the top drum section, and the steel drum section slope downwardly from the internal cavity to the outer wall.

In summary, the present application provides a tower member and a tower constructed from the tower member. The tower may include a foundation, a door section, a prestressed strand, the tower member, a top tower tube section, and a steel tower tube section. The tower member may include a first tower section and a second tower section. The first tower segment and the second tower segment may be alternately stacked to increase the height of the tower. The first tower section is stacked from standardized first cylindrical bodies. The second tower cylinder section is formed by stacking standardized second cylinder bodies. The first cylindrical body and the second cylindrical body can be flexibly combined, the requirements of towers with different types and hub heights can be met, and the applicability is strong. The tower component and the exterior of all cylindrical bodies in the tower cylinder at the top are straight cylinders, so that the reinforcing bars are uniformly distributed, the required form of the template is uniform, the difficulty in formwork construction is reduced, and the prefabrication efficiency is high. The first cylindrical body and/or the second cylindrical body with the same diameter can be used among different towers, multiple working faces can be started at the same time, and the universality is high. According to the production, transportation and construction conditions of the local tower drum and the construction period requirement, the relatively optimal cast-in-place, prefabricated and steel tower drum height proportion is provided, and the customization degree is high. Can be according to prefabricated factory scale, uniformly adopt vertical burst structure to the prefabricated component, satisfy prefabricated component long distance transportation requirement, the radiation face is wide. The straight cylinder sections with the same diameter are not connected through grouting/seat grouting, the hoisting installation time and the operation error risk are saved, seat grouting adjustment is allowed among all levels, the construction fault tolerance is widened, and the installation period is short. The external prestressed strand tensioning construction is simple and quick, grouting is not needed, and the prestress loss is reduced.

Drawings

FIG. 1 illustrates an elevational view of a tower member and tower provided in accordance with an embodiment of the present application;

FIG. 2 illustrates a cross-sectional view of a tower member and tower provided in accordance with an embodiment of the present application;

FIG. 3 is a detailed view of area A of FIG. 2;

FIGS. 4A-1 and 4A-2 illustrate, respectively, a partial cross-sectional view and a top view of a splice schematic of a first cylindrical body provided in accordance with embodiments of the present application;

4B-1 and 4B-2 illustrate a partial cross-sectional view and a top view, respectively, of another splice schematic of a first cylindrical body provided in accordance with an embodiment of the present application;

5A, 5B, 5C and 5D show schematic views of a docking surface provided according to an embodiment of the present application;

FIGS. 6A and 6B are schematic structural diagrams illustrating two types of tower doors provided according to embodiments of the present application;

FIG. 7A-1 illustrates a cross-sectional view of a tower provided in accordance with an embodiment of the present application;

FIG. 7A-2 shows a cross-sectional view C-C of FIG. 7A-1;

FIG. 7A-3 shows a cross-sectional view D-D of FIG. 7A-1;

FIG. 7B-1 illustrates a cross-sectional view of a tower provided in accordance with an embodiment of the present application;

FIG. 7B-2 shows a cross-sectional view G-G of FIG. 7A-1;

FIG. 8A shows a detailed view of region B of FIG. 2;

FIG. 8B shows a cross-sectional view F-F of FIG. 8A;

FIG. 9 illustrates a tower elevation with a tower door section elevated provided in accordance with an embodiment of the present application; and

FIG. 10 illustrates an elevated view of a tower with an elongated steel tower section provided in accordance with an embodiment of the present application.

Detailed Description

The following description is presented to enable any person skilled in the art to make and use the present disclosure, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Thus, the present application is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting.

These and other features of the present application, as well as the operation and function of the related elements of structure and the combination of parts and economies of manufacture, may be significantly improved upon consideration of the following description. All of which form a part of this application, with reference to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the application.

These and other features of the present application, as well as the operation and function of the related elements of the structure, and the economic efficiency of assembly and manufacture, are significantly improved by the following description. All of which form a part of this application with reference to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the application. It should also be understood that the drawings are not drawn to scale.

FIG. 1 illustrates a schematic view of a tower member 200 provided in accordance with embodiments of the present application. The tower member 200 may be used to build a tower. The tower may include, but is not limited to, a wind turbine tower, a solar panel tower, a telecommunications base station tower. Specifically, tower member 200 may include a first tower section 300 and a second tower section 400. Tower component 200 may be formed from a plurality of first tower sections 300 and a plurality of second tower sections 400 alternately connected in sequence. FIG. 2 illustrates a cross-sectional view of a tower member 200 provided in accordance with an embodiment of the present application. Fig. 3 is a detailed view of region a in fig. 2. Referring to fig. 3, the first tower section 300 may include at least one first barrel 310. The second tower section 400 may comprise at least one second cylinder 410.

For convenience of explanation, it is necessary to define "upward" and "downward" in the following description of the present application, and the tower door 100 and the tower member 200 according to the present application are shown in fig. 1 with the ground as a horizontal plane, the axis L (vertical to the ground) of the tower 100 as a height direction, upward away from the ground, and downward close to the ground.

The first cylindrical body 310 may be a concrete cylindrical body. The first cylindrical body 310 may be a cylindrical cylinder having a circular ring-shaped section. That is, the first cylindrical body 310 has an inner diameter that is a cylindrical surface and an outer diameter that is a cylindrical surface. In some embodiments, the first cylinder 310 may be circumferentially spliced from at least two splice pieces. For example, when the diameter of the outer wall of the first cylindrical body 310 exceeds the maximum transportation size, the first cylindrical body 310 may be prefabricated in vertical slices, and the number of slices is greater than or equal to 2. And after the prefabricated vertical fragments are transported to an installation site, the vertical fragments are combined and spliced into a complete first cylindrical body 310 in an annular direction by adopting an annular prestress connecting piece. Thus, the problem that the first cylindrical body 310 is too large to be transported can be solved. Secondly, the split prefabrication is more favorable to long distance transportation, and the radiation face is wide.

Fig. 4A-1 and 4A-2 illustrate a splice-together schematic, partial cross-sectional and top-view, respectively, of a first cylindrical body 310 provided in accordance with an embodiment of the present application. Referring to fig. 4A-1 and 4A-2, the first cylindrical body 310 may be divided into two split pieces 311 in a longitudinal direction. The first cylindrical body 310 is formed by splicing the two splicing pieces 311 into a full-circle cylindrical body along the circumferential direction. Any two adjacent split pieces 311 can be connected by using the circumferential prestressed connecting piece 170. Fig. 4B-1 and 4B-2 illustrate a splice-together schematic, partial cross-sectional and top-view, respectively, of another first cylindrical body 310 provided in accordance with an embodiment of the present application. Referring to fig. 4B-1 and 4B-2, the first cylindrical body 310 may be divided into three split pieces 311 in the longitudinal direction. The first cylindrical body 310 is formed by annularly splicing the three splice pieces 311. Any two adjacent split pieces 311 can be connected by using the circumferential prestressed connecting piece 170. In some embodiments, the first cylinder 310 may be a single, integral cylinder, and need not be assembled. For example, when the diameter of the outer wall of the first cylindrical body 310 does not exceed the maximum transportable size, vertical slicing may be selected not to be performed.

The upper and lower surfaces of the first cylindrical body 310 may be inclined downward from the inner cavity to the outer wall to prevent rainwater from entering the inside of the tower 100. For example, after assembly, for any one of the first cylindrical bodies 310, the relative elevation of the inner side top is higher than the relative elevation of the outer side top; the relative elevation of the inner bottom is higher than the relative elevation of the outer bottom; thus, when the two first cylindrical bodies 310 are butted, a natural rain-proof structure is formed at the butted portion. The upper and lower surfaces of the two first cylindrical bodies 310 coupled to each other are matched with each other to ensure that the lower surface of one first cylindrical body 310 and the upper surface of the other first cylindrical body 310 can be butted. For convenience of description, in the following description of the present application, the "butting face" means a face formed by the butting portion of two cylindrical bodies. Fig. 5A shows a schematic view of a docking surface 1 provided according to an embodiment of the present application. As shown in fig. 5A, the abutting surfaces 1 of the two first cylindrical bodies 310 may be stepped surfaces. Fig. 5B shows a schematic view of another docking surface 2 provided according to an embodiment of the present application. As shown in fig. 5B, the abutting surfaces 2 of the two first cylindrical bodies 310 may be inclined surfaces. The butt joint surface is inclined downwards from the inner cavity to the outer wall, and when rainwater appears on the butt joint surface (for example, the rainwater which falls flows downwards along the inner wall of the first cylindrical body 310 and enters the butt joint surface through a gap of the butt joint part), the rainwater can flow to the outer wall of the cylindrical body along the butt joint surface, so that the rainwater cannot be deposited inside the tower, and the rainwater can drip from the inside of the tower to affect the electric equipment inside the tower.

The first cylindrical body 310 may be sized. The first cylindrical bodies 310 of the same stage have the same size. The first cylindrical body 310 of different stages has different sizes. The dimensions may include the inner wall diameter and/or the outer wall diameter of the cartridge. In some embodiments, the first cylindrical body 310 may be graded by outer wall diameter. For example, the first cylinder 310 may be graded by outer wall diameter as: 900cm, 800cm and 700 cm. Wherein, the 900cm grade can refer to the first cylinder 310 with 900cm outer diameter and 800cm inner diameter. In some embodiments, the heights of the first cylindrical bodies 310 of the same level may be the same. A first tower section 300 may be formed by stacking and connecting several first cylinders 310 of the same stage. Taking the 900 cm-scale as an example, the 900 cm-scale first tower 300 may be formed by stacking and connecting a plurality of 900 cm-scale first cylindrical bodies 310. Like this, the same grade first cylinder 310 size is the same, just can standardized production, and even arrangement of reinforcement, required template form are unified, reduce the formwork construction degree of difficulty, and prefabrication is efficient. The first cylindrical bodies 310 of the same stage can be used among different towers, so that multiple working faces can be started at the same time, and the universality is high.

The second cylinder 410 may be sized. The second cylinders 410 of the same stage are the same size. The second cylinders 410 of different stages are different in size. The dimensions may include an inner wall diameter and/or an outer wall diameter of the second cylinder 410. In some embodiments, the second cylinder 410 may be graded by outer wall diameter. For example, the second cylinder 410 may be graded by outer wall diameter as: 900cm, 800cm and 700 cm. Wherein the 900cm scale means the second cylinder 410 having an outer wall diameter of 900 cm. The second cylinder 410 may have the same grading level as the first cylinder 310. For example, the diameter of the outer wall of the 900 cm-sized second cylinder 410 is the same as that of the 900 cm-sized first cylinder 310, and both are 900 cm. Thus, when the 900 cm-sized second cylindrical body 410 and the 900 cm-sized first cylindrical body 310 are coupled, a straight cylindrical section having an outer wall diameter of 900cm can be formed. By adopting the hierarchical design, the diameters of the outer walls of the first cylindrical body 310 and the second cylindrical body 410 at the same level are the same, the standardized production can be realized, the uniform reinforcement and the required form of the template are unified, the difficulty in formwork construction is reduced, and the prefabrication efficiency is high. The first cylindrical body 310 and the second cylindrical body 410 of the same stage can be used between different towers, so that multiple working surfaces can be started at the same time, and the universality is high.

The second cylindrical body 410 may be a concrete cylindrical body having a circular cross section. In some embodiments, the second cylinder 410 may be circumferentially spliced from at least two splice pieces. The two split sheets can also be connected through the annular prestress connecting piece. Of course, in some embodiments, the second cylinder 410 may be a separate and complete cylinder, and need not be assembled. The process and advantages of vertically slicing and splicing the second cylinder 410 may be the same as or similar to those of the first cylinder 310, and for brevity, will not be described again here.

The upper and lower surfaces of the second cylinder 410 may be inclined downward from the inner cavity to the outer wall to prevent rainwater from entering the inside of the tower 100. For example, after the assembly is completed, the relative elevation of the inner top of the second cylindrical body 410 is higher than the relative elevation of the outer top; the relative elevation of the inner bottom is higher than the relative elevation of the outer bottom; thus, when the two cylindrical bodies are butted, a natural rain-proof structure is formed at the butting surface. Fig. 5C shows a schematic view of a docking surface 3 provided according to an embodiment of the present application. As shown in fig. 5C, the abutting surface 3 of the second cylinder 410 and the first cylinder 310 may be a stepped surface. Fig. 5D shows a schematic view of another docking surface 4 provided according to an embodiment of the present application. As shown in fig. 5D, the abutting surface 4 of the second cylinder 410 and the first cylinder 310 may be a slope. The butt joint surface is inclined downwards from the inner cavity to the outer wall, and when rainwater appears on the butt joint surface (for example, the rainwater falling to the upper surface of the second cylindrical body 410 shown in fig. 5C or 5D), the rainwater can flow to the outer wall of the cylindrical body along the butt joint surface, so that the rainwater cannot be deposited inside the tower, and the rainwater can drip from the inside of the tower to affect the electric equipment inside the tower.

With continued reference to FIG. 3, the second cylinder 410 may be a cylinder with a gradually changing inner wall diameter to connect two different stages of the first tower section 300. For example, when it is desired to connect a first column section 300 of the order of 800cm and a first column section 300 of the order of 900cm, a second column 410 of the order of 900cm may be provided between the first column section 300 of the order of 800cm and the first column section 300 of the order of 900 cm. The diameter of the outer wall of the 900 cm-sized second cylindrical body 410 is the same as the diameter of the 900 cm-sized first column section 300 therebelow, and both are 900 cm. The diameter of the inner wall of the 900 cm-level second cylindrical body 410 is the same as the diameter of the outer wall of the 800 cm-level first tower cylindrical section 300 above the 900 cm-level second cylindrical body, and the diameters of the inner wall and the outer wall are 800 cm. Therefore, the 900 cm-level second cylindrical body 410 and the 900 cm-level first tower cylindrical section 300 are connected to form a cylindrical section with the outer diameter of 900cm and the outer part of a straight cylinder, the reinforcement is uniformly distributed, the required form of the template is uniform, the construction difficulty of formwork support is reduced, and the prefabrication efficiency is high. In some embodiments, the inner diameter of the second cylinder 410 may increase or decrease uniformly. For example, the diameter of the inner wall of the second cylinder 410 is uniformly reduced in the direction of increasing height. Thus, the inner diameter of the upper surface of the second cylindrical body 410 is sufficiently small; the upper surface of the second cylinder 410 may provide support for the smaller sized first tower section 300 on its upper level. Of course, in order to facilitate the connection with the first cylindrical body 310, bosses may be further provided at both ends of the second cylindrical body 410.

In some embodiments, tower member 200 may include several different stages of first and

second tower sections

300 and 400. Tower component 200 may be formed from alternating stacked and connected first and

second tower sections

300, 400 of the different stages. For example, in FIG. 2, the first and

second tower segments

300 and 400 of the tower member 200 are divided into different stage combinations according to the tower section diameters. From the bottom to the top (i.e. along the direction of height rise) of the tower 100, the section outer diameters of the tower barrel sections of different stages are gradually reduced; the section external diameters of the tower cylinder sections of the same stage are the same and the heights of the monomers are the same. The height of tower member 200 is determined by the number of stacked first and

second tower sections

300 and 400. By adopting the design, constructors can flexibly adjust the elevation after the stacking, the number of stacked layers, the number of tower barrels and the like according to the design requirements of the wind driven generator set on the tower. The first cylindrical body 310 and the second cylindrical body 410 can be flexibly combined, can meet the requirements of towers with different types and hub heights, and has strong applicability. The outsides of all tower drums in the tower component 200 are straight drums, so that the ribs are uniformly distributed, the required form of the template is uniform, the difficulty in formwork construction is reduced, and the prefabrication efficiency is high. The first cylindrical body 310 and/or the second cylindrical body 410 with the same diameter can be used among different towers, multiple working faces can be started at the same time, and the universality is high. Can be according to prefabricated factory scale, uniformly adopt vertical burst structure to the prefabricated component, satisfy prefabricated component long distance transportation requirement, the radiation face is wide. The straight cylinder sections with the same diameter are connected without grouting/seat grouting, the hoisting and mounting time and the operation error risk are saved, the seat grouting is allowed to be adjusted among levels, the construction fault tolerance is high, and the mounting period is short.

FIG. 1 also illustrates a structural schematic view of a tower 100 provided in accordance with some embodiments of the present application. Fig. 2 is a cross-sectional view of fig. 1. The tower 100 may be a support tower for a wind turbine. The support tower of the wind turbine can be used in low wind speed areas and/or high wind speed areas. The supporting tower of the wind turbine generator set can be used in the field of high towers or the field of low towers. The tower 100 may be used for a land based wind farm or an offshore wind farm. As an example, the following description of the present application describes the functionality of tower 100 in the application with respect to a land wind farm tower.

Specifically, tower 100 may include a foundation 110, a door section 120, a tower member 200, a top barrel section 130, a steel barrel section 140, and prestressed strands 150. Tower component 200 is a prefabricated tower section. Tower component 200 is formed from prefabricated first and

second tower sections

300 and 400 that are alternately spliced together and gradually decrease in size in a direction away from door section 120.

Base 110 may provide ground support for door section 120, tower member 200, top tower section 130, steel tower section 140, and prestressed strands 150. Door section 120, tower member 200, top tower section 130, and steel tower section 140 may be stacked in sequence and attached to foundation 110. The door section 120, tower member 200, top tower section 130, and steel tower section 140 may be connected by pre-stressed connections therebetween. Base 110 may also serve as an anchor point for pre-stressed strand 150. The base 110 may be a gravity-type ground base. The gravity type foundation can be manufactured by adopting a concrete casting mode in situ.

The tower door section 120 is fixedly disposed on the base 110. Tower door section 120 is coupled to base 110 at one end and to tower member 200 at the other end. Tower door section 120 may be used to join foundation 110 with tower member 200. In some embodiments, the tower door section 120 may be a prefabricated stand-alone cylinder. In some embodiments, the tower door section 120 may be fabricated with the base 110. For example, when base 110 is a land-based foundation, concrete tower door section 120 may be cast in place at the finished interface of base 110.

Fig. 6A and 6B are schematic structural diagrams illustrating two types of tower doors 120 provided according to an embodiment of the present application. The door section 120 may be a cylindrical body with a cylindrical wall provided with an opening 121. The opening 121 is a door of the tower 100. The cylindrical body may be a concrete cylindrical body. The cross section of the cylindrical body can be a circular ring. In production, a designer may design the shape and size of the tower door section 120 according to design requirements. In some embodiments, the tower door section 120 may be a cylindrical drum — i.e., both the inner and outer walls of the tower door section 120 are cylindrical. In some embodiments, the cross-sectional area of the tower door section 120 may gradually decrease as the height increases. In some embodiments, the door section 120 may be a cylindrical body with a conical outer wall and a cylindrical inner wall. For example, in FIG. 6A, the inside diameter of the tower door section 120 may be constant and the outside diameter may become smaller as the height increases. In some embodiments, the door tower section 120 may be a cylinder with tapered outer and inner walls. For example, in FIG. 6B, the diameter of the outer wall of the door section 120 may decrease as the vertical height increases and the diameter of the inner wall may decrease as the vertical height increases.

The elevation of the tower door section 120 may be made according to design requirements. FIG. 9 illustrates an elevated tower elevation view of a tower door section 120 provided in accordance with an embodiment of the present application.

A steel tower section 140 is at the top of the tower 100. A steel drum section 140 is fixed to the top drum section 130. The number of steel tower sections 140 may be one or more. The number of the towers of the steel tower section can be set according to the design requirement to lengthen the steel tower section 140. FIG. 10 illustrates an enlarged tower elevation view of a steel tower section 140 provided in accordance with an embodiment of the present application.

With continued reference to FIG. 2, top tower section 130 is fixedly attached to tower member 200. Fig. 8A shows a detailed view of region B in fig. 2. Fig. 8B shows a cross-sectional view F-F in fig. 8A. Top tower section 130 may include at least one prefabricated concrete tower. The top column section 130 is connected to the steel column section 140 above it by a vertical pre-stressed connection 180. The lower end of the top drum section 130 is connected to the first drum section 300. The top tower section 130 is provided with a connector for fixing the pre-stressed strands 150. The pre-stressed strands 150 are anchored with the top tower section 130 through the interface.

The number of the prestressed strand 150 may be one or more, and a steel material may be selected. Prestressing strands 150 may be arranged circumferentially along the inner walls of tower door section 120, tower member 200, and top tower section 140. The planar arrangement of the pre-stressed strands 150 does not interfere with the tower door section 120 to ensure that the doors 121 on the tower door section 120 are not obscured. Prestressing strands 150 prestress tower door section 120, top tower section 140, and tower member 200. In some embodiments, the prestressing strands 150 may be uniformly arranged along the circumferential direction of the inner walls of the tower door section 120, the tower member 200 and the top tower section 140 to apply uniform prestressing to the top tower section 140, the tower member 200 and the tower door section 120.

Prestressed strand 150 may be an inner externally prestressed strand. Prestressed strands 150 may extend through from base 110 to top tower section 140. One end of the prestressed strand 150 may be anchored to the top tower section 140 and the other end to the base 110. Like this, need not to reserve the hole in other tower section of thick bamboo insides, save the grout process. The prestressing strands 150 tension the top tower section 140 and the foundation 110. The tension forces act on the top tower tube section 140 and the foundation 110 to pre-stress the tower between the foundation 110 and the top tower tube section 140, including the tower door section 120, to provide structural stability to the tower 100. The prestressed strand 150 is formed by one-time tensioning, so that the installation time is saved.

FIG. 7A-1 illustrates a cross-sectional view of a tower provided in accordance with an embodiment of the present application. Fig. 7A-2 shows a cross-sectional view C-C in fig. 7A-1. Fig. 7A-3 shows a cross-sectional view D-D in fig. 7A-1. Fig. 7A-1, 7A-2, and 7A-3 illustrate one type of pre-stressed strand 150 positioned in relation to the tower. Referring to FIGS. 7A-1, 7A-2, and 7A-3, at certain locations, the prestressed strands 150 are spaced from the inner walls of both the first cylinder 310 and the second cylinder 410 of the tower member 200.

FIG. 7B-1 illustrates a cross-sectional view of a tower provided in accordance with an embodiment of the present application. Fig. 7B-2 shows a cross-sectional view G-G in fig. 7A-1. FIGS. 7B-1 and 7B-2 illustrate another pre-stressed strand 150 positioned with a tower according to some embodiments of the present application. Referring to fig. 7B-1 and 7B-2, at certain locations, the pre-stressed strands 150 are in partial contact with the inside of the second cylinder 410. In some embodiments, the angle of inclination of pre-stressed strand 150 may be slightly abrupt at the contact site.

When the tower frame 100 is built, assembling the tower barrels prefabricated in segments into a whole annular tower barrel on site; the vertical slice connecting part is provided with a tension ring-shaped prestress connecting piece to apply pre-tightening force required by design to each slice; sequentially hoisting all the assembled whole annular tower drums until the tower drums reach the designed elevation; continuously installing the tower drum which is not divided into pieces until reaching the top drum section; installing and tensioning the prestressed stranded wire; then hoisting the steel tower drum, and connecting the steel tower drum with the top tower drum section through the vertical prestressed connecting piece; and hoisting the steel tower cylinder section to the designed elevation, then completing the construction of the tower frame, and waiting for the subsequent installation of the wind generating set.

In some embodiments, the butt interface of any two adjacent cylinders and/or cylinder segments in tower 100 has an inside top elevation higher than an outside top elevation and/or an inside bottom elevation higher than an outside bottom elevation. For example, the interface between any two adjacent towers in tower 100 may slope downward from the inner cavity to the outer wall to prevent rain from entering the interior of tower 100. The towers in tower 100 may be prefabricated in segments as desired. For brevity, the shape of the interface and the structure of the segments are not described in detail.

In conclusion, the application provides a step-by-step diameter-variable straight tower cylinder prestressed concrete wind turbine tower 100 capable of being vertically divided into slices. The tower 100 may be adapted for use with a land-based wind turbine. The tower may include a base 110, a tower door section 120, a prestressed strand 150, a number of vertically sectional prefabricated tower components 200, and a top tower tube section 130. The tower member 200 may include a first tower section 300 and a second tower section 400. The first and

second tower sections

300 and 400 may be alternately stacked to increase the height of the tower 100. The first tower section 300 is stacked from a standardized first cylindrical body 310. The second tower section is stacked from a standardized second cylinder 410. The first cylindrical body 310 and the second cylindrical body 410 can be flexibly combined, can meet the requirements of towers with different types and hub heights, and has strong applicability. The tower components 200 and the exterior of all the towers in the top tower 130 are straight cylinders, so that the reinforcement is uniformly distributed, the required form of the template is uniform, the difficulty in formwork construction is reduced, and the prefabrication efficiency is high. The first cylindrical body 310 and/or the second cylindrical body 410 with the same diameter can be used among different towers, multiple working faces can be started at the same time, and the universality is high. According to the production, transportation and construction conditions of the local tower drum and the construction period requirement, the relatively optimal cast-in-place, prefabricated and steel tower drum height proportion is provided, and the customization degree is high. Can be according to prefabricated factory scale, uniformly adopt vertical burst structure to the prefabricated component, satisfy prefabricated component long distance transportation requirement, the radiation face is wide. The straight cylinder sections with the same diameter are not connected through grouting/seat grouting, the hoisting installation time and the operation error risk are saved, seat grouting adjustment is allowed among all levels, the construction fault tolerance is widened, and the installation period is short. The external prestressed strand tensioning construction is simple and quick, grouting is not needed, and the prestress loss is reduced. The tower component and the tower can reduce the share consumption of the template tools, shorten the construction period and provide an optimized solution for the improvement of the material use efficiency of the precast concrete tower structure and the improvement and development of the precast assembly efficiency and scale.

In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, although not explicitly described herein. Such alterations, improvements, and modifications are intended to be suggested by this application and are within the spirit and scope of the exemplary embodiments of the application.

Furthermore, certain terminology has been used in this application to describe embodiments of the application. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.

It should be appreciated that in the foregoing description of embodiments of the present application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of such feature. Alternatively, various features may be dispersed throughout several embodiments of the application. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.

In some embodiments, numbers expressing quantities or properties useful for describing and claiming certain embodiments of the present application are to be understood as being modified in certain instances by the terms "about", "approximately" or "substantially". For example, "about", "approximately" or "substantially" may mean a ± 20% variation of the value it describes, unless otherwise specified. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.

Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.

Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art may implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those embodiments described with precision in the application.

Claims

1. A tower member, comprising:

a plurality of first tower segments, each of the first tower segments comprising at least one first cylindrical body having a uniform inner diameter; and

a plurality of second tower segments, each of the second tower segments comprising at least one second cylinder having a gradually changing inner diameter,

the first tower cylinder section and the second tower cylinder section are alternately connected, and the sectional dimensions of two ends of the second tower cylinder section are matched with the sectional dimension of the first tower cylinder section.

2. A tower structure according to claim 1, wherein said at least one second tubular body in each second tubular section has the same outer diameter and a uniform increase or decrease in inner diameter.

3. The tower member of claim 1, wherein the first plurality of tower segments includes at least one first tower segment having a same outer diameter for each first tower segment, and the second plurality of tower segments includes at least one second tower segment having a same outer diameter for each second tower segment.

4. A tower member as claimed in any one of claims 1-3, wherein said first tubular body is circumferentially spliced from a full ring or at least two splicing tabs and said second tubular body is circumferentially spliced from a full ring or at least two splicing tabs.

5. A tower member as in claim 4, wherein the at least two segments of the first tubular body are joined by a hoop prestressed connecting element and the at least two segments of the second tubular body are joined by a hoop prestressed connecting element.

6. A tower structure according to claim 1, wherein the abutment surface of any two adjacent cartridges slopes downwardly from the inner cavity to the outer wall.

7. A tower, comprising:

a base;

the tower door section is fixedly arranged on the base;

the tower member of any one of claims 1 to 6, fixedly disposed on said door section and having a gradually decreasing cross-sectional diameter in a direction away from said door section;

a top tower section fixedly connected to the tower member;

the steel tower cylinder section is fixed on the top tower cylinder section; and

and the plurality of prestressed stranded wires are arranged along the circumferential directions of the inner walls of the tower component and the top tower tube section and are used for applying prestress to the top tower tube section, the tower component and the tower door section.

8. The tower of claim 7, wherein said plurality of pre-stressed strands are connected at one end to said top tower section and at another end to said foundation, said plurality of pre-stressed strands running from said foundation to said top tower section.

9. A tower as in claim 7 wherein said top tower section is connected to said steel tower section by vertical pre-stressed connections.

10. The tower of claim 7, wherein the cross-sectional area of the door section decreases with increasing vertical height.

11. The tower of claim 7, wherein the interface between any adjacent two of said door section, said tower component, said top tower section, and said steel tower section slopes downwardly from the interior cavity to the exterior wall.