CN118768884A - Assembling method for segmented tower - Google Patents

Abstract

The invention provides a method for assembling a segmented tower, wherein the segmented tower is formed by vertically assembling at least two tower segments, and the method comprises the following steps: a base for placing and fixing the assembly tool, wherein the base comprises an upper surface for supporting the tower barrel fragments to be assembled and a boss protruding from the central part of the base, and the boss exceeds the upper surface of the base; vertically placing a first tower section on the base with an axial end flange of the first tower section contacting and secured to the upper surface of the base; and placing a tower platform on the boss after securing the first piece of tower segments to the base. The vertical assembly is adopted, so that deformation caused by gravity of tower barrel fragments is reduced, and repeated adjustment of assembly tools or tower barrel fragments is avoided. In addition, the convenience of the tower barrel splitting longitudinal seam assembly construction can be ensured, and the installation time and the installation difficulty of the accessory platform in the conventional tower barrel are reduced.

Description

Assembling method for segmented tower

Technical Field

The invention relates to the field of wind power towers, in particular to a method for assembling a segmented tower.

Background

For a circular tower (also referred to as a tower) for large-diameter wind power, the tower or the tower is manufactured in a piece-wise manner (for example, the circular tower is divided into a plurality of circular arc tower pieces in the circumferential direction), so that road transportation requirements are met, for example, the plurality of tower pieces can be stacked on each other, so that occupied space is reduced, and transportation stability of the tower pieces is improved. After the tower sections are transported to the site, assembly is also required to be performed to assemble the circular tower sections.

The current assembly process can adopt a horizontal assembly mode, and the two roller brackets which are placed on the assembly field and are spaced apart in the horizontal direction are used for supporting the two longitudinal ends of the tower barrel fragments which are horizontally placed. In the process of assembly and assembly, the roller support supports the tower section of thick bamboo burst and can make the tower section of thick bamboo burst rotatory certain angle in order to be convenient for the group of adjacent tower section of thick bamboo burst to piece together. In addition, the stacked tower section of thick bamboo burst still need be stood up and shift with the help of hoist and mount frock and stand up the frock in order to place the tower section of thick bamboo burst to gyro wheel support department and with corresponding other tower section of thick bamboo burst group piece.

However, this manner of assembly has the following difficulties: in the assembly process, as the tower barrel fragments are influenced by gravity and the opening of the tower barrel fragments are deformed, the longitudinal two ends of the tower barrel fragments can be deformed to different degrees, so that great difficulty exists in on-site assembly of round tower barrels, and a plurality of correction tools and rich experience of operators are required to be added to realize smooth assembly. In addition, the roller bracket is difficult to rotate the tower, and due to the deviation of the placement of the roller bracket, the situation of different axes exists, so that the tower can deform and opposite angles are formed at the two longitudinal ends of the tower piece. In addition, when the tower barrel is assembled by the split longitudinal seams, the operation position is relatively high, and the assembly of the longitudinal seams is difficult.

In addition, the assembling efficiency of the assembling mode is low, and in the assembling process, two roller brackets are required to be adjusted for multiple times, so that time-consuming verification is realized.

Disclosure of Invention

The present invention is directed to solving the above-mentioned problems of the prior art. Specifically, the invention provides a method for assembling a segmented tower, which is used for vertically assembling the segments of the tower, so that deformation caused by gravity of the segments of the tower is reduced, multiple times of adjustment of assembling tools or the segments of the tower during assembling each segment are avoided, and the cost can be greatly reduced.

According to an aspect of the present invention, there is provided a assembling method for a segmented tower, the segmented tower being vertically assembled from at least two tower segments, wherein the assembling method comprises: a base for placing and fixing the assembly tool, wherein the base comprises an upper surface for supporting the tower barrel fragments to be assembled and a boss protruding from the central part of the base, and the boss exceeds the upper surface of the base; vertically placing a first tower section on the base with an axial end flange of the first tower section contacting and secured to the upper surface of the base; and placing a tower platform on the boss after securing the first piece of tower segments to the base.

Optionally, after the tower platform is placed, other tower segments may be placed and secured to the base in sequence.

Alternatively, the base may include an annular support member, an outer diameter of which may be larger than an outer diameter of the tower, and which may be provided with bolt holes and pin holes distributed in a circumferential direction; wherein, the assembling method can further comprise: each tower section is placed onto the annular support member and the bolt holes and the pin holes on the annular support member are aligned with a portion of the bolt holes of the axial end flange of the tower section and the tower section is secured to the annular support member with bolts and pins.

Alternatively, the tower platform can be lifted to different tower heights along the tower longitudinal direction according to the required longitudinal seam assembly position, wherein the tower platform can be used as a longitudinal seam assembly construction platform.

Alternatively, after the assembly of the longitudinal seam between adjacent tower segments is completed, the tower platform may be lifted to about another axial end flange of the tower opposite the axial end flange supported on the base, and a suspension assembly disposed on the tower platform may be attached to the other axial end flange.

Optionally, a plurality of horizontal limiting components can be arranged on the tower platform, and the plurality of horizontal limiting components are arranged along the outer periphery of the tower platform and used for propping up the inner wall of the tower fragments; wherein, the assembling method can further comprise: and applying a jacking force to the inner wall of the tower segment by using the plurality of horizontal limiting assemblies so as to fix the tower platform at a specific horizontal position in the tower.

Optionally, the base of the assembly tool may be removed and the tower platform retained within the tower.

Optionally, at least two telescoping pull rods may be mounted at the mouth of each tower section and on the inner wall of the tower section prior to mounting the respective tower section on the base.

Optionally, before or after the tower is mounted on the base in a piece mode, the length of each telescopic pull rod can be adjusted, so that each telescopic pull rod can be contracted to a theoretical chord length, wherein the theoretical chord length is the distance between two mounting points of the telescopic pull rod on the inner wall of the tower on the theoretical circle of the tower.

Optionally, the length of the telescoping pull rod may be adjusted to align the circumferential ends of adjacent tower segments with one another during assembly of the tower segment longitudinal seam.

Through the assembly method for the split type tower barrel, vertical assembly of the split type tower barrel can be achieved, a turning tool is not needed, repeated disassembly and assembly of the turning tool during assembly of each split type tower barrel are avoided, cost is greatly reduced, and efficiency is improved.

In addition, the deformation caused by the gravity of the tower barrel fragments can be reduced by adopting vertical assembly, so that the assembly tool or the tower barrel fragments are prevented from being adjusted for a plurality of times when each fragment is assembled, and the assembly difficulty is reduced.

In addition, the tower cylinder platform can be placed on the boss of the assembly tool, can move in the longitudinal direction of the tower cylinder and can be fixed near the flange at the axial end part of the tower cylinder, so that the tower cylinder platform can be used as a construction platform during assembly of the tower cylinder fragments, and is convenient for constructors to assemble longitudinal seams between the tower cylinder fragments at different tower cylinder height positions, thereby being convenient for construction and greatly reducing the assembly difficulty of the longitudinal seams. In addition, after the tower barrel is assembled in a split mode, the tower barrel platform can be used as a conventional tower barrel inner accessory platform, and an operation space is provided for installation, operation and maintenance of follow-up flange bolts and the like. Therefore, the tower barrel platform realizes dual-purpose, thereby ensuring the convenience of the split longitudinal seam assembly construction of the tower barrel and reducing the installation time and the installation difficulty of the accessory platform in the conventional tower barrel.

Drawings

FIG. 1 shows a schematic view of a plurality of tower segments in a stacked condition;

FIG. 2 shows a schematic view of a makeup tooling for a segmented tower according to the present invention;

FIG. 3 shows a schematic view of a telescopic tie of a make-up tooling for a segmented tower according to the present invention;

FIG. 4 shows a schematic view of a tower platform according to the present invention;

FIG. 5 shows an enlarged cross-sectional view of a horizontal stop assembly according to the present invention;

FIG. 6 illustrates a perspective view of a horizontal stop assembly according to the present invention;

fig. 7 to 13 show a schematic process of assembling a tower segment using the assembly tooling for a segment tower according to the present invention.

Reference numerals illustrate:

1-tower barrel slicing; 2-axial end flanges; 3-a bracket; 4-bolt holes; 5-another axial end flange; 6-a bolt; 7-pins; 9-longitudinal joint; 10-a base; 11-boss; 12-upper surface; 13-an annular support member; 14-a bottom plate; 15-spacers; 16-bolt holes; 17-pin holes; 20-a telescopic pull rod; 21-a stem; 22-handle; 30-a tower platform; 31-a panel; 32-annular standing edges; 33-a horizontal limit assembly; 331-a support; 332-limiting blocks; 333-screw; 334-nut; 34-a suspension assembly; 35-lifting interface; 40-hanging strip.

Detailed Description

Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

For convenience of storage or transportation, a plurality of tower segments 1 may be stacked on each other such that each tower segment 1 faces the same direction, as shown in fig. 1, thereby sufficiently reducing the occupied space. A bracket 3 may be fixed to the axial end flange 2 of each tower segment 1, the bracket 3 being for example a transport bracket or a lifting bracket. In addition, bolt holes 4 may be formed in the axial end flange 2 to facilitate assembly of the tower segments 1.

In the following, a description will be given of an example in which a complete tower segment is assembled from three tower segments 1 in the circumferential direction, that is, the circular arc of each tower segment 1 may have a central angle of 120 degrees. However, the invention is not limited thereto, and a complete tower section may also be assembled from two or more than three tower segments 1.

In order to reduce deformation caused by gravity of tower section of thick bamboo burst, avoided assembling each tower section of thick bamboo burst to make up frock or tower section of thick bamboo burst itself and carry out a lot of adjustment, can make up the tower section of thick bamboo burst vertically, figure 2 shows the frock of making up that is used for vertical make up tower section of thick bamboo burst.

As shown in fig. 2, the assembly fixture for the segmented tower comprises a base 10, and an upper surface 12 of the base 10 can be used for supporting the tower segments 1 to be assembled. During assembly, the base 10 may be placed on a flat ground and the tower segments may be placed vertically on the base 10, respectively, the base 10 may support the tower segments 1 and the base 10 may achieve a limit and fixation of the theoretical position for each tower segment 1, as will be described in detail below.

As shown in fig. 2, the base 10 may include an annular support member 13, and an upper surface of the annular support member 13 may be an upper surface 12 of the base 10. The outer diameter of the annular support member 13 may be slightly larger than the outer diameter of Yu Datong, and the annular support member 13 may be provided with bolt holes 16 and pin holes 17 distributed in the circumferential direction, the bolt holes 16 and pin holes 17 may be configured to align with a portion of the bolt holes 4 of the axial end flange 2 of the tower section 1 to be assembled for securing the tower section 1 to the annular support member 13 with bolts 6 and pins 7.

In addition, the base 10 may further include a bottom plate 14 spaced apart from the annular supporting member 13 in a vertical direction.

Furthermore, a plurality of spacers 15 distributed in the circumferential direction may be provided between the annular support member 13 and the bottom plate 14.

The floor 14 may be adapted to contact the ground and be leveled. The spacer 15 can be used to adjust the annular support member 13 to a certain height, thereby leaving a certain operating space below the annular support member 13, facilitating the installation between the tower segment 1 and the base 10 by an operator.

In the present embodiment, the bottom plate 14, the spacer 15, and the annular supporting member 13 in the base 10 are separate three members attached to each other, but alternatively, two or three of the bottom plate 14, the spacer 15, and the annular supporting member 13 may be integrally formed.

Further, in addition to the use of the bottom plate 14, the spacers 15 and the annular supporting member 13 described above, the assembly fixture further includes a boss 11 protruding from the central portion of the base 10, and the boss 11 exceeds the upper surface 12 of the base 10. As will be described in detail below, the assembly tooling of the present invention may also include a "dual-purpose" tower platform 30, as shown in FIG. 4, where the boss 11 may be used to support the start position of the tower platform 30.

As shown in fig. 2, the boss 11 may extend from a central portion of the bottom plate 14 in a vertical direction and beyond an upper surface of the annular support member 13.

In addition, as shown in fig. 3 and fig. 7 to 13, the assembly fixture may further include one or more telescopic pull rods 20 for being detachably mounted on the inner wall of the tower section 1, and two ends of the telescopic pull rods 20 are disposed near the opening of the tower section 1. As shown in fig. 3, the telescopic link 20 may include a rod portion 21, and the rod portion 21 may be telescopic to adjust the length of the entire telescopic link 20. The telescoping pull rod 20 may also include a handle 22 to facilitate length adjustment and disassembly of the telescoping pull rod 20 by an operator. As shown in fig. 7 to 13, a plurality of telescopic tie rods 20 can be installed in the longitudinal direction of the tower segment 1, thereby preventing the tower segment from being excessively opened and reducing the difficulty in assembling the longitudinal joints.

In addition, as described above, the assembly fixture may include a tower platform 30, the tower platform 30 may be placed on the boss 11 of the assembly fixture (i.e., the initial position of the tower platform 30), may be movable in the longitudinal direction of the tower (i.e., the longitudinal seam assembly construction position of the tower platform 30), and may be secured near the axial end flange of the tower (i.e., the position where the tower platform 30 is used as a conventional tower interior attachment platform). Therefore, during the tower section assembly, the tower platform 30 can be used as a construction platform, so that constructors can assemble the longitudinal joints between the tower section 1 at different tower section height positions, thereby facilitating construction and greatly reducing the difficulty of assembling the longitudinal joints. In addition, after the tower is assembled in sections, the tower platform 30 can be used as a conventional tower internal accessory platform to provide an operating space for installation, operation and maintenance of subsequent flange bolts and the like. Therefore, the tower platform 30 can realize dual-purpose, thereby ensuring the convenience of the split longitudinal seam assembly construction of the tower and reducing the installation time and the installation difficulty of the accessory platform in the conventional tower.

As shown in fig. 4 to 13, the tower platform 30 can be positioned to be located inside the tower such that the outer wall of the tower platform 30 approaches the inner wall of the tower section 1, and the tower platform 30 can be placed on the boss 11 (shown in fig. 9) and can be moved to different height positions along the longitudinal direction of the tower by the spreader (shown in fig. 12 and 13).

As shown in fig. 4 to 6, the tower platform 30 may include a panel 31 and an annular standing edge 32 erected at an outer periphery of the panel 31, and the tower platform 30 may further include a plurality of horizontal stopper assemblies 33 spaced apart from each other along a circumferential direction of the annular standing edge 32. The panel 31 may be generally circular in shape to provide an operating space for an operator. The panel 31 may be provided with a manhole through which an operator passes or other holes through which cables or ladders in the tower may pass. The annular standing edge 32, which may also be referred to as a skirting edge, may surround the panel 31 for a week to prevent panel drooling. In addition, the horizontal limiting component 33 can limit the displacement of the tower platform 30 in the horizontal direction, so as to fix the tower platform 30.

In addition, a lifting interface 35 is provided on the panel 31 of the tower platform 30, a sling 40 (as shown in fig. 12) of a sling can be attached to the lifting interface 35, and the panel 31 of the tower platform is lifted in the longitudinal direction of the tower by means of the sling and the sling 40.

In addition, the tower platform 30 may further include a suspension assembly 34, and the suspension assembly 34 may preferably be disposed proximate the annular rim 32, and may be disposed in plurality in the circumferential direction of the tower platform 30. One end of the suspension assembly 34 is attached to the face plate 31 of the tower platform 30 and when the tower section 1 is assembled, the tower platform 30 is used as a conventional in-tower attachment platform, the other end of the suspension assembly 34 may be attached to the other axial end flange 5 of the tower opposite the axial end flange 2 supported on the base 10 of the assembly tooling (as shown in fig. 13). For example, a plurality of horizontal stop assemblies 33 may be used to tighten the inner wall of the tower section 1 at a distance of 1 meter to 2 meters from the other axial end flange 5 of the tower platform 30, and to attach the suspension assemblies 34 to the other axial end flange 5, thereby allowing the tower platform 30 to be used as a conventional tower interior attachment platform, e.g., after the tower section 1 is assembled, to retain the assembled tower platform 30 within the tower for use as an interior attachment for a wind turbine generator system.

As shown in fig. 5 and 6, each horizontal limiting assembly 33 may include a supporting portion 331, a limiting block 332, a screw 333, and a nut 334, and the supporting portion 331 may be fixed at a radial inner side of the annular standing edge 32, and as shown in fig. 6, the supporting portion 331 may have a U-shaped frame structure. The screw 333 may pass through the support 331 and the annular standing edge 32, and the stopper 332 may be provided at one end of the screw 333 and radially outside the annular standing edge 32 to abut against the inner wall of the tower section 1. The nut 334 may be screwed onto the screw 333 and located radially inward of the annular standing edge 32, the nut 334 may be configured to be screwed down, maintaining a certain tightening force to tighten the stopper 332 against the inner wall of the tower section 1, e.g. the tightening of the stopper 332 against the inner wall of the tower section 1 may be achieved by rotation of the screw 333, thereby fixing the tower platform 30 at a specific horizontal position within the tower.

Optionally, the horizontal limiting component can also adopt a magnetic attraction mode, so that the horizontal limiting efficiency of the tower platform is improved.

The steps of the assembly operation for vertically assembling the tower segments 1 using the assembly fixture for the segment type tower according to the present invention will be described in detail with reference to fig. 7 to 13.

As shown in fig. 7 and 8, the base 10 is first set and fixed.

Further, in order to reduce the opening deformation of the tower sections 1, a telescopic tie 20 is mounted to the tower sections 1, e.g. the first tower section 1, before mounting the respective tower sections 1 on the base 10. As shown in fig. 7, at least two telescopic links 20 may be installed at the opening of the tower segment 1 and on the inner wall of the tower segment 1, and the at least two telescopic links 20 may be spaced apart from each other in the length direction of the tower. By installing tie rods 20 at various locations on the inner wall of the tower section 1, the tower shape at various locations of the tower section 1 can be kept uniform to minimize distortion of the tower section 1.

Furthermore, the length of the telescopic links 20 may be adjusted before or after the tower segment 1 is mounted to the base 10, such that each telescopic link 20 is contracted to a theoretical chord length, wherein the theoretical chord length is the distance between two mounting points of the telescopic links 20 on the inner wall of the tower on the theoretical circle of the tower, and the theoretical chord length may be pre-calculated and determined.

Here, the telescopic pull rod 20 not only can counteract the elastic deformation of the tower section 1, but also can improve the rigidity of the tower section 1, and further, the tower section deformation in the assembly process or the hoisting process is reduced, so that the smooth assembly of the tower section 1 is ensured.

After the tower segment 1 is mounted with the telescoping pull rod 20, the tower segment 1 is secured to the base 10.

The tower section 1 is placed upright on the base 10 with the axial end flange 2 of the tower section 1 contacting the annular support member 13 of the base 10, in particular on the upper surface 12 of the base 10 (i.e. the upper surface of the annular support member 13), and with the bolt holes 16 and the pin holes 17 of the annular support member 13 of the base 10 aligned with a portion of the bolt holes 4 of the axial end flange 2 of the tower section 1 to be assembled. Further, bolts 6 and pins 7 (e.g., dowel pins) are passed through the bolt holes 4 on the axial end flange 2 of the tower section 1 and the bolt holes 16 and the pin holes 17 of the annular support member 13 of the base 10, and fastened. Here, the bolts 6 and the pins 7 may be alternately distributed. The pins 7 may be used to locate the tower segment 1, ensuring that the deformation of the tower segment 1 is constrained. Bolts 6 may be used to secure the tower section 1 to the base 10. There may be a space between the bottom plate 14 of the base 10 and the annular support member 13 suitable for operating the bolts 6.

After the first tower section 1 is secured to the base 10, the tower platform 30 is installed as shown in fig. 9. The tower platform 30 can be placed on the boss 11 of the assembly tooling as the initial position of the tower platform 30. The boss 11 provides initial support for the tower platform 30. Alternatively, to keep the tower platform 30 stable, a horizontal stop assembly 33 on the tower platform 30 opposite the first tower section 1 may be used to push against the inner wall of the tower section 1 to ensure the securement of the tower platform 30.

In this embodiment, after the first tower segment 1 is fixed to the base 10, there is a relatively large space to provide convenience in the installation of the tower platform 30, as compared with the conventional installation of the tower platform to the inside of the tower inner wall at the longitudinal end of the tower after the tower segments are assembled into a full-round tower. In addition, in the present embodiment, not only the installation space is wide, but also the installation position is low, and the tower platform 30 can be installed in a horizontal posture without lifting the tower platform 30 to a relatively high installation position or erecting the tower platform 30 to accommodate the position of the tower, thus greatly reducing the installation difficulty of the tower platform 30.

After the tower platform 30 is installed, as shown in fig. 10 and 11, other tower segments 1 may be installed in sequence. As shown in fig. 10, the second tower segment 1 may be placed and fixed, and the installation method may be the same as that of the first tower segment 1. As shown in fig. 11, a third tower segment 1 may be placed and secured, and the method of installation may be the same as the first tower segment 1.

In the present disclosure, since each tower segment 1 is placed and fixed on the base 10, particularly on the annular supporting member 13 of the base 10, and is positioned and fixed by means of the bolt holes 4 on the axial end flange 2 of the tower segment 1 and the bolt holes 16 and the pin holes 17 on the annular supporting member 13, the base 10 provides the functions of positioning and rounding the tower segment 1, and the theoretical position of each tower segment 1 is limited and fixed, so that in the assembly process, the assembly tool or the tower segment 1 itself does not need to be adjusted multiple times, or the correct position of the tower segment 1 is found in a time-consuming manner, and therefore the assembly efficiency can be improved.

In addition, because of vertical assembly, the deformation of the tower barrel fragments 1 under the action of gravity can be reduced, and the assembly difficulty is reduced.

After the tower segments 1 are placed, the longitudinal seams 9 between the tower segments 1 can be assembled. In this process, the hanging harness 40 may be installed first, as shown in fig. 12. For example, the harness 40 may be tied to the tower platform 30 at the lifting interface 35. The sling 40 is then pulled by the sling and thereby the tower platform 30 is lifted to different tower heights along the tower longitudinal direction, depending on the desired longitudinal seam make-up position. By lifting the tower platform 30 to different tower heights, longitudinal seam assembly can be performed at any tower height position according to the needs of constructors, for example, the longitudinal seam assembly can be performed by fastening bolts at the longitudinal seam or by welding and the like.

When the required longitudinal seam assembly position is reached, the inner wall of the tower section 1 can be tightly propped by utilizing the horizontal limiting component 33 so as to ensure the fixation of the tower platform 30.

Thus, the tower platform 30 may be used herein as a longitudinal seam make-up construction platform. Accordingly, the present disclosure ingeniously utilizes the tower platform 30, which may be used as an accessory in a tower in the future, as a construction platform, thereby facilitating longitudinal seam assembly, a constructor can conveniently reach an arbitrary height, and the panel 31 of the tower platform 30 provides a sufficient operation space for the constructor.

In this process, the tower platform 30 achieves "dual use". In addition, no other lifting tools are needed to be additionally arranged, so that the constructor stands.

In addition, during the assembly of the tower segments, if there is a large gap between adjacent tower segments 1 or the tower segments 1 are misplaced, the length of the telescoping pull rod 20 may be adjusted to align the circumferential ends of adjacent tower segments 1 with each other.

In addition, when the telescopic links 20 are encountered while the column platform 30 is lifted up in the column longitudinal direction while the longitudinal slits are assembled from bottom to top, the corresponding telescopic links 20 may be removed so as not to interfere with the lifting of the column platform 30 when the column platform 30 needs to be lifted up further.

After the longitudinal seam is completed, the tower platform 30 may be lifted to the vicinity of the other axial end flange 5 of the tower opposite the axial end flange 2 supported on the base 10 of the assembly tool, as shown in fig. 13.

The suspension assembly 34 may be attached to the other axial end flange 5 of the tower, providing tension to the tower platform 30. For example, a plurality of horizontal stop assemblies 33 may be used to tighten the inner wall of the tower section 1 at a distance of 1 meter to 2 meters from the other axial end flange 5 of the tower platform 30, and to attach the suspension assembly 34 to the other axial end flange 5, thereby providing the tower platform 30 as a conventional tower inner attachment platform. Thus, after the tower segment 1 is assembled, the tower platform 30 of the assembly tool is retained within the tower for use as an in-tower attachment for the wind turbine generator system, and the tower platform 30 may thereafter be used as a permanent operation and maintenance platform for the tower (e.g., corresponding tower segment).

Therefore, the tower platform 30 disclosed by the invention realizes 'dual-purpose', can be used as a longitudinal joint assembly construction platform and also can be used as a permanent operation and maintenance platform, thereby ensuring the convenience of the tower section longitudinal joint assembly construction, reducing the installation time and the installation difficulty of an accessory platform (namely, the permanent operation and maintenance platform) in a conventional tower, and solving the installation problem of the operation and maintenance platform in the vertical assembly.

Finally, the assembly tool is disassembled, more specifically, a part of the assembly tool is disassembled, and then assembly is completed. In this process, the base 10 of the assembly fixture is disassembled, and the tower platform 30 is retained in the tower.

While certain embodiments have been shown and described, it would be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.

Claims (10)

1. A method for assembling a segmented tower, the segmented tower being formed by vertically assembling at least two tower segments, the method comprising:

A base (10) for placing and fixing a jig assembly, the base (10) comprising an upper surface (12) for supporting a tower section (1) to be assembled and a boss (11) protruding from a central portion of the base (10), the boss (11) exceeding the upper surface (12) of the base (10);

-placing a first tower segment (1) upright on said base (10), with an axial end flange (2) of said first tower segment (1) in contact and fixed to said upper surface (12) of said base (10); and

After the first sheet tower segment (1) is secured to the base (10), a tower platform (30) is placed on the boss (11).

2. The assembly method for a segmented tower according to claim 1, wherein after placement of the tower platform (30), further tower segments are placed and fixed to the base (10) in sequence.

3. The assembling method for the segmented tower according to claim 1 or 2, wherein the base (10) includes an annular support member (13), an outer diameter of the annular support member (13) is larger than an outer diameter of Yu Datong, and the annular support member (13) is provided with bolt holes (16) and pin holes (17) distributed in a circumferential direction;

Wherein, the assembly method further comprises: -placing each tower segment (1) onto the annular support member (13), and-aligning the bolt holes (16) and the pin holes (17) on the annular support member (13) with a portion of the bolt holes (4) of the axial end flange (2) of the tower segment (1), and-fixing the tower segment (1) to the annular support member (13) with bolts (6) and pins (7).

4. The assembly method for a segmented tower according to claim 2, wherein the tower platform (30) is lifted to different tower heights along the tower longitudinal direction according to the required longitudinal seam assembly position, wherein the tower platform (30) is used as a longitudinal seam assembly construction platform.

5. The assembly method for a segmented tower according to claim 4, characterized in that after the assembly of the longitudinal seam between adjacent tower segments, the tower platform (30) is lifted to the vicinity of the other axial end flange (5) of the tower opposite to the axial end flange (2) supported on the foundation (10) and a suspension assembly (34) provided on the tower platform (30) is attached to the other axial end flange (5).

6. The assembly method for a segmented tower according to any one of claims 1, 4 and 5, characterized in that a plurality of horizontal stop assemblies (33) are provided on the tower platform (30), said plurality of horizontal stop assemblies (33) being provided along the outer periphery of the tower platform (30) for pushing against the inner wall of the tower segment (1);

wherein, the assembly method further comprises: and applying a jacking force to the inner wall of the tower segment (1) by using the plurality of horizontal limiting assemblies (33) so as to fix the tower platform (30) at a specific horizontal position in the tower.

7. The assembly method for a segmented tower according to claim 5, wherein the base (10) of the assembly fixture is removed and the tower platform (30) is retained within the tower.

8. The assembly method for a segmented tower according to claim 1 or 2, characterized in that at least two telescopic tie rods (20) are mounted at the mouth of each tower segment (1) and on the inner wall of the tower segment (1) before mounting the respective tower segment (1) on the base (10).

9. The assembly method for a segmented tower according to claim 8, wherein the length of the telescopic tension rods (20) is adjusted before or after the tower segments (1) are mounted to the base (10) such that each telescopic tension rod (20) is contracted to a theoretical chord length, wherein the theoretical chord length is the distance of two mounting points of the telescopic tension rods (20) on the inner wall of the tower on the theoretical circle of the tower.

10. The assembling method for the segmented tower according to claim 8, wherein the length of the telescopic tie rod (20) is adjusted to align the circumferential ends of the adjacent tower segments (1) with each other during the tower segment longitudinal seam assembling.