Tower body construction method of twin tower

Abstract

The invention relates to a double-limb tower body construction method, and belongs to the technical field of bridge construction.The double-limb tower body construction method comprises the steps that steel frameworks of two limb towers of a first section are erected on the basis of a lower tower pier, and a disc buckle support with the structure matched with the space formed between the two limb towers is erected; a formwork system arranged on the periphery of the steel framework in a surrounding mode is installed on the top of the lower tower pier, a disc buckle support serves as an inner support to support the formwork system, concrete is poured into the formwork system to form a first section of limb tower, the construction process is repeated, and a second section of limb tower is formed; in the remaining sections, the next section of limb tower is built with the previous section as the foundation, and upward section-by-section construction is conducted in sequence till the tops of the two limb towers are closed; according to the device, the plate buckle support can extend, so that a worker can directly move to a platform of the hydraulic climbing formwork system through the plate buckle support, and the situation that the worker needs to repeatedly go up and down to move to the hydraulic climbing formwork system of the limb tower on the other side from the limb tower on one side due to the fact that the interval between the hydraulic climbing formwork systems of the two limb towers is too far is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a method for constructing a double-limb tower body. Background Art

[0002] With the rapid development of modern economic technology, the number of bridge projects has increased rapidly, and the number of cable-stayed bridges has also increased accordingly. For the sake of beauty, the appearance of the main tower is also diverse. The main tower is divided into a lower tower pier, a middle tower column, and an upper tower column. The construction adopts segmented construction, and the middle tower column is in the shape of a "human" in the longitudinal direction of the bridge.

[0003] However, the space between the two limb towers of the existing middle tower column is limited, and the conventional climbing formwork construction cannot meet the construction requirements. As the space between the two limb towers gradually decreases, it is inconvenient for workers to construct. When the existing middle tower column is closed, it is necessary to set additional support members such as corbels on the limb towers for closing the joint, or to re-erect support brackets from bottom to top to support the closing section. In addition, there is a gap between the two limb towers, which is easy to tilt inward without corresponding support during construction, resulting in dimensional deviation. Summary of the invention

[0004] The embodiment of the present application provides a method for constructing a double-limb tower body to solve the problem in the related art that the space between the two limb towers of the existing middle tower column is limited, which is inconvenient for workers to construct, and a separate closure support device is required when closing the joint. In addition, there is no cross brace between the two limb towers before closing the joint, which leads to increased tensile stress at the base of the tower and affects the quality of the project.

[0005] The present application provides a method for constructing a double-limb tower, comprising the following steps:

[0006] The steel skeleton of the two limb towers of the first section is erected based on the lower tower pier, and the buckle bracket whose structure is adapted to the space formed between the two limb towers is erected;

[0007] Using the buckle bracket as a construction platform, installing a formwork system around the steel frame on the top of the lower tower pier, and using the buckle bracket as an internal support to support the formwork system, pouring concrete in the formwork system to form the first segment limb tower;

[0008] Repeat the above construction process, and build the next segment of the limb tower based on the previous segment in the remaining segments, and then construct it upwards section by section until the tops of the two limb towers are connected.

[0009] In some embodiments, the above construction process is repeated, and the next segment limb tower is constructed based on the previous segment in the remaining segments, and the construction is carried out upwards segment by segment until the tops of the two limb towers are connected. The specific process is:

[0010] The steel frame of the limb tower of the second section is erected based on the limb tower of the first section, and a buckle bracket whose structure is adapted to the space formed between the two limb towers is erected;

[0011] The top support assembly of the first segment limb tower is loosened, and the formwork system on the first segment limb tower is moved to the periphery of the second segment limb tower for erection;

[0012] The loosened top support assembly on the limb tower of the first section is supported on the inner wall of the limb tower, and the top support assembly of the second section is set on the buckle bracket of the second section to support the formwork system;

[0013] Repeat the above construction process, and build the next segment limb tower based on the previous segment in the remaining segments until the tops of the two limbs are connected.

[0014] In some embodiments, the specific process of joining the tops of two limbs is as follows:

[0015] Erect the steel frame of the last section of the limb tower, and erect the disc bracket that matches the structure with the space formed between the two limb towers;

[0016] The formwork system of the last section is set up on the periphery of the limb tower, the formwork system is supported by the top support assembly, and a rack supporting the joint section is set on the top of the buckle bracket;

[0017] The final section of concrete is poured to complete the mid-tower column.

[0018] In some embodiments, when the construction reaches the third section to the joint section, a hydraulic climbing formwork system is installed on the outside of the steel frame of the limb tower, and the buckle bracket is set up and extends between the hydraulic climbing formwork systems of the two limb towers in a direction away from the inner wall of the limb tower.

[0019] In some embodiments, the interior of the buckle bracket is provided with a top support assembly for the top support formwork system and the limb tower.

[0020] In some embodiments, the top support assembly includes two support rods and a top support disposed at one end of the support rods close to the inner template;

[0021] The two support rods are arranged in an X-shape and staggered, and the support rods are connected to the vertical rods of the buckle bracket through a lock.

[0022] In some embodiments, the top support is adjusted and fixed at an angle by a lock so that the center line of the top support is perpendicular to the inner template.

[0023] In some embodiments, the hydraulic climbing formwork system includes a guide rail, a hydraulic climbing frame and a hydraulic system platform.

[0024] In some embodiments, climbing cones required for the hydraulic climbing formwork system and embedded parts required for other processes are pre-embedded before pouring concrete for each segment limb tower.

[0025] In some embodiments, the formwork system includes an outer formwork installed on the outside of the limb tower frame and an inner formwork installed on the inside of the limb tower.

[0026] The beneficial effects of the technical solution provided by this application include:

[0027] The extension of the disc-buckle bracket allows the workers to go directly from one limb tower to the platform of the hydraulic climbing formwork system of another limb tower through the disc-buckle bracket, avoiding the hydraulic climbing formwork platforms of the two limb towers being too far apart. The workers need to go up and down repeatedly to get from one limb tower to the platform of the hydraulic climbing formwork system of another limb tower, thereby avoiding reduced construction efficiency and inconvenience for the workers to take the workpiece for construction.

[0028] The top support assembly is used to prevent the inner formwork from falling off, and to prevent the outer side of the limb tower root from being subjected to a certain tensile stress and concrete cracking due to the limb tower tilting inward.

[0029] By arranging active horizontal top support components and the inner wall between two limb towers in each segment, the increase of tensile stress at the root of the limb tower can be effectively suppressed.

[0030] The disc-shaped bracket can be used as the inner support of the two-leg tower and the construction platform, and a rack can be installed to support the joint section of the two-leg tower, avoiding the need to install additional support parts such as corbels on the top to support the joint section when the two-leg tower is joined, which reduces work efficiency and is inconvenient to install. It also avoids the need to set up a separate support bracket from the bottom to support the joint section when the two-leg tower is joined, which is time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application;

[0033] Figure 2 A schematic top view of an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the construction of the first section provided in the embodiment of the present application;

[0035] Figure 4 A schematic diagram of the construction of the second section provided in the embodiment of the present application;

[0036] Figure 5A schematic diagram of the construction of the third section provided in the embodiment of the present application;

[0037] Figure 6 A schematic diagram of the construction of the fourth section provided in the embodiment of the present application;

[0038] Figure 7 This is a schematic diagram of the construction of the fifth section provided in the embodiment of the present application.

[0039] 1. Lower tower pier; 2. Limb tower; 21. External formwork; 22. Internal formwork; 3. Hydraulic climbing formwork system; 4. Disc bracket; 41. Top support; 42. Strut; 51. Industrial steel; 52. Rack. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] The embodiment of the present application provides a method for constructing a double-limb tower body, which can solve the problem that the space between the two limb towers of the existing middle tower column is limited, which is inconvenient for workers to construct, and a separate closure support device is also required when closing the joint. In addition, there is no cross brace between the two limb towers before closing the joint, which leads to increased tensile stress at the base of the tower and affects the quality of the project.

[0042] See also Figure 1-7 As shown, the embodiment of the present application provides a method for constructing a double-limb tower body, comprising the following steps:

[0043] Step 1: construct the steel skeleton of the two limb towers 2 of the first section based on the lower tower pier 1 , and construct the buckle bracket 4 whose structure is adapted to the space formed between the two limb towers 2 .

[0044] Step 2: Using the buckle bracket 4 as a construction platform, install a formwork system around the steel frame on the top of the lower tower pier 1, and use the buckle bracket 4 as an internal support to support the formwork system, and pour concrete in the formwork system to form the first segment limb tower 2.

[0045] Step 3, repeat the above construction process, and build the next segment limb tower 2 based on the previous segment in the remaining segments, and construct them upwards segment by segment until the tops of the two limb towers 2 are connected.

[0046] In this embodiment, the hydraulic climbing formwork system 3 includes a guide rail, a hydraulic climbing frame and a hydraulic system platform.

[0047] In this embodiment, the formwork system includes an outer formwork 21 installed on the outer side of the frame of the limb tower 2 and an inner formwork 22 installed on the inner side of the limb tower 2 .

[0048] In this embodiment, five sections are preset in the middle tower column as an example:

[0049] S101. With the lower tower pier 1 as the construction foundation, a steel frame of the first segment limb tower 2 is set up on the lower tower pier 1, and then a buckle bracket 4 is set up in the space between the two limb towers 2, and the structural shape of the buckle bracket 4 is adapted to the space formed between the two limb towers 2, so that the workers can move on the buckle bracket 4 to the inner side of the limb tower 2 for easy construction, and the two limb towers 2 are supported from the inside by the buckle bracket 4.

[0050] S102, then install the outer formwork 21 on the three outer peripheral walls of the steel frame of the first segment, and install the inner formwork 22 on the opposite side of the steel frame of the two limb towers 2, wherein adjacent outer formworks 21 and adjacent inner formworks 22 are reinforced with four-corner clamps. After the formwork system is installed, install the top support assembly on the disc bracket 4, and support and fix the inner formwork 22 through the top support assembly, and then pour concrete.

[0051] S103, after the concrete of the first section is solidified and formed, the steel frame of the limb tower 2 of the second section is erected on the basis of the limb tower 2 of the first section, and the buckle bracket 4 of the limb tower 2 of the second section is erected between the frames of the two limb towers 2, then the top support assembly of the limb tower 2 of the first section is loosened, so that the inner formwork 22 and the outer formwork 21 of the limb tower 2 of the first section are moved to the outer side of the steel frame of the limb tower 2 of the second section for installation, and then the top support assembly is installed on the buckle bracket 4 of the limb tower 2 of the second section to support the inner formwork 22 of the limb tower 2 of the second section.

[0052] S104, after the formwork system of the limb tower 2 of the second section is installed, the top support assembly of the limb tower 2 of the first section is re-supported on the inner wall of the limb tower 2 to support the formed limb tower 2 of the first section, so as to avoid the limb tower 2 of the next section exerting pressure on the limb tower 2 of the previous section during subsequent construction, thereby causing deformation of the previous section.

[0053] S105. On the basis of the limb tower 2 of the second section, the steel frame of the limb tower 2 of the third section is set up, and then the corresponding buckle bracket 4 is set up in the space between the two limb towers 2, and the buckle bracket 4 extends away from both sides of the inner wall of the limb tower 2 toward the hydraulic climbing formwork system 3, so that the inner formwork 22 and the outer formwork 21 of the limb tower 2 of the second section are installed on the periphery of the limb tower 2 of the third section, and then the top support assembly is installed on the buckle bracket 4 of the limb tower 2 of the third section to support the inner formwork 22, and the top support assembly of the limb tower 2 of the second section is restored to support the inner wall of the limb tower 2 of the second section again, and concrete is poured to form the limb tower 2 of the third section.

[0054] S106. On the basis of the third section, the steel frame of the limb tower 2 of the fourth section is set up, and the hydraulic climbing formwork system 3 is respectively installed on the three sides of the steel frame of the limb tower 2 except the inner side, in a herringbone arrangement. The hydraulic climbing formwork system 3 sets up the corresponding disc bracket 4 in the space between the two limb towers 2, and the disc bracket 4 extends toward the hydraulic climbing formwork system 3 away from the two sides of the inner wall of the limb tower 2, so that the inner formwork 22 and the outer formwork 21 of the third section are installed on the outer side of the limb tower 2 of the fourth section, and then the top support assembly is installed on the disc bracket 4 of the fourth section to support the inner formwork 22, and the top support assembly of the third section is restored to support the inner wall of the limb tower 2 of the third section again, and concrete is poured to form the limb tower 2 of the fourth section.

[0055] S107, on the basis of the fourth section, the steel skeleton of the fifth section limb tower 2 is set up, the hydraulic climbing formwork system 3 climbs up, and the corresponding buckle bracket 4 is set up in the space between the two limb towers 2, and the industrial steel 52 is set on the top of the buckle bracket 4, and the rack 51 is installed on the industrial steel 52 as a support for the load-bearing section of the middle tower column, and the buckle bracket 4 is extended away from both sides of the inner wall of the limb tower 2 toward the hydraulic climbing formwork system 3, so that the inner formwork 22 and the outer formwork 21 of the fourth section are installed on the outer side of the limb tower 2 of the fifth section, and then the top support assembly is installed on the buckle bracket 4 of the fifth section to support the inner formwork 22, and the top support assembly of the fourth section is restored to support the inner wall of the limb tower 2 of the fourth section again, and concrete is poured to form the fifth section limb tower 2;

[0056] S108, the construction of the middle tower column has been completed.

[0057] Among them, the extension of the buckle bracket 4 allows the staff to go directly from one limb tower 2 to the platform of the hydraulic climbing formwork system 3 of another limb tower 2 through the buckle bracket 4, thereby avoiding the platforms of the hydraulic climbing formwork systems 3 of the two limb towers 2 being too far apart, and the staff needing to go up and down repeatedly to reach the platform of the hydraulic climbing formwork system 3 of the other limb tower 2 from one limb tower 2, thereby avoiding the reduction of the construction efficiency of the staff and the inconvenience of the staff in taking the workpiece for construction. The hydraulic climbing formwork system 3 is arranged on the three outer side walls of the limb tower 2, and the buckle bracket 4 is extended toward both sides away from the inner wall of the limb tower 2 to correspond to the outer hydraulic climbing formwork system 3.

[0058] The supporting assembly is used to prevent the inner formwork 22 from falling off, and to prevent the outer side of the root of the limb tower 2 from being subjected to a certain tensile stress and concrete cracking due to the inward tilt of the limb tower 2.

[0059] Among them, by using a top support assembly in each segment to support the inner wall of the limb tower 2, it is avoided that during the subsequent construction, the limb tower 2 of the next segment applies pressure to the limb tower 2 of the previous segment, causing the limb tower 2 of the previous segment to deform, and the increase of the tensile stress at the root of the limb tower 2 is effectively suppressed.

[0060] Among them, the buckle bracket 4 can be used as an inner support and construction platform for the two-leg tower 2, and the frame 51 can be installed to support the joint section of the two-leg tower 2, so as to avoid the need to install additional support parts such as corbels on the top to support the joint section when the two-leg tower 2 is joined, which leads to reduced work efficiency and inconvenient installation. It also avoids the need to set up a separate support bracket from the bottom to support the joint section when the two-leg tower 2 is joined, which is time-consuming and labor-intensive.

[0061] In some optional embodiments, see Figure 1 As shown, in the double-limb tower body construction method, the two sides of the buckle bracket 4 away from the inner wall of the limb tower 2 extend toward the hydraulic climbing formwork system 3 to a length that allows the staff to move to the hydraulic system platform through the buckle bracket 4.

[0062] In some optional embodiments, see Figure 1 As shown, in the double-limb tower body construction method,

[0063] Step 3, repeat the above construction process, and build the next segment limb tower 2 in the remaining segments based on the previous segment. The specific process is as follows:

[0064] Step 301, based on the limb tower 2 of the first section, a steel frame of the limb tower 2 of the second section is erected, and a buckle bracket 4 whose structure is adapted to the space formed between the two limb towers 2 is erected;

[0065] Step 302, loosen the top support assembly of the first segment limb tower 2, and move the formwork system on the first segment limb tower 2 to the periphery of the second segment limb tower 2 for erection;

[0066] Step 303, the loosened top support assembly on the limb tower 2 of the first segment is supported on the inner wall of the limb tower 2, and the top support assembly of the second segment is set on the buckle bracket 4 of the second segment to support the template system;

[0067] Step 304 , repeat the above construction process, and construct the next segment limb tower 2 based on the previous segment in the remaining segments, until the tops of the two limb towers 2 are connected.

[0068] In some optional embodiments, see Figure 1 As shown, in the double-limb tower body construction method,

[0069] Step 304, the specific process of joining the tops of the two limb towers 2:

[0070] Step 3041, erecting the steel frame of the last segment limb tower 2, and erecting the buckle bracket 4 whose structure is adapted to the space formed between the two limb towers 2;

[0071] Step 3042, erecting the formwork system of the last segment on the periphery of the limb tower 2, supporting the formwork system through the top support assembly, and setting a bent frame 52 for supporting the joint section on the top of the buckle bracket 4;

[0072] Step 3043, pour the last section of concrete to form the middle tower column.

[0073] In some optional embodiments, see Figure 1 As shown, in the construction method of the double-limb tower body, when the construction reaches the third section, the hydraulic climbing formwork system 3 is installed on the outer side of the steel frame of the limb tower 2, and the set-up disc buckle bracket 4 extends in the direction away from the inner wall of the limb tower 2 to between the hydraulic climbing formwork systems 3 of the two limb towers 2.

[0074] When the construction reaches the fourth section to the joint section, the hydraulic climbing formwork system 3 climbs.

[0075] In some optional embodiments, see Figure 1 As shown, in the construction method of the double-limb tower body, the top support assembly includes two support rods 42 and a top support 41 arranged at one end of the support rod 42 close to the inner template 22. The two support rods 42 are staggered in an X shape. The support rods 42 are connected to the vertical rods of the disc bracket 4 by locking buckles, and square wood is arranged between the top support 41 and the inner template 22.

[0076] In this embodiment, the support rod 42 is adjusted and fixed at an angle by a lock so that the center line of the support 41 is perpendicular to the inner template 22 .

[0077] Among them, the lock buckle can preferably be an openable and closable annular hoop, which is used to fix the support rod 42. The annular hoop is hinged with the vertical rod of the buckle bracket 4. A connecting rod is fixedly connected in the longitudinal direction of the annular hoop. The end of the connecting rod away from the annular hoop is vertically provided with a hollow shaft with openings at both ends. Two fixed plates arranged in spaced apart are provided on the vertical rod of the buckle bracket 4. The fixed plates are provided with openings. A hollow plug rod with openings at both ends is fixedly connected to the opposite sides of the two fixed plates, wherein the opening of the plug rod is arranged corresponding to the opening of the fixed plate, and then the shaft is located between the two fixed plates and connected with the plug rod so that the two plug rods are The rod can be inserted into the openings at both ends of the shaft respectively, so that the shaft and the insertion rod can be rotatably connected, and the shaft is divided into three sections: upper, middle and lower. The upper and lower sections can allow the insertion rod to be inserted and rotatably connected. The inner diameter of the middle section is equal to the inner diameter of the insertion rod, and threads are provided on the inner wall of the middle section of the shaft and the inner wall of the insertion rod. After adjusting the angle of the support rod 42, the insertion rod can be inserted through the opening of the fixing plate and extended into the shaft for bolt connection, so that the fixed angle of the shaft cannot be rotated, that is, the support rod 42 is fixed at a fixed angle, so that the center line of the top support 41 remains perpendicular to the inner template 22, and then the top support 41 is rotated to support on the inner template 22.

[0078] In some optional embodiments, see Figure 1As shown, in the tower body construction method of the double-limb tower, climbing cones required for the hydraulic climbing formwork system 3 and embedded parts required for other processes are pre-embedded after each segment limb tower 2 is erected.

[0079] Working principle and process of this application:

[0080] The skeleton of the two limb towers 2 of the first section is set up based on the lower tower pier 1, a disc bracket 4 adapted to the space form is set up in the space between the two limb towers 2, the formwork system of the first section is installed, and a top support assembly for fixing the formwork system is set on the disc bracket 4, and the concrete of the limb tower 2 of the first section is poured.

[0081] Based on the limb tower 2 of the first section, the construction process of the limb tower 2 of the first section is repeated to construct the limb tower 2 of the second section, and the top support assembly of the first section is loosened, so that the formwork system of the first section is moved to the second section, and the top support assembly of the second section is set to support the formwork system of the second section, so that the top support assembly of the first section is restored, and the above construction process is repeated. In the remaining sections, the next section is constructed based on the previous section, and the hydraulic climbing formwork system 3 is installed to construct the sections in sequence, and the two sides of the buckle bracket 4 away from the inner wall of the limb tower 2 are extended toward the hydraulic climbing formwork system 3. When the construction reaches the limb tower 2 of the last section, the industrial steel 51 is set on the top of the buckle bracket 4, and the rack 52 for bearing the load of the tower body joint section is installed on the industrial steel 51, and the concrete of the last section is poured to form the middle tower column.

[0082] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0083] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0084] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for constructing a double-limb tower body, characterized in that: include: The steel skeleton of the two limb towers (2) of the first section is erected based on the lower tower pier (1), and a buckle bracket (4) is erected to match the structure with the space formed between the two limb towers (2); Using the buckle bracket (4) as a construction platform, installing a formwork system around the outer periphery of the steel frame on the top of the lower tower pier (1), and using the buckle bracket (4) as an internal support to support the formwork system, pouring concrete in the formwork system to form the first segment limb tower (2); The above construction process is repeated, and in the remaining segments, the next segment limb tower (2) is constructed based on the previous segment, and the construction is carried out upwards segment by segment until the tops of the two limb towers (2) are connected.

2. The method for constructing a double-limb tower body as claimed in claim 1, wherein: Repeat the above construction process, and build the next segment limb tower (2) based on the previous segment in the remaining segments, and construct the limb tower (2) upwards segment by segment until the tops of the two limb towers (2) are connected. The specific process is as follows: The steel frame of the limb tower (2) of the second section is erected based on the limb tower (2) of the first section, and a buckle bracket (4) is erected with a structure that matches the space formed between the two limb towers (2); The top support assembly of the first segment limb tower (2) is loosened, and the formwork system on the first segment limb tower (2) is moved to the periphery of the second segment limb tower (2) for erection; The loosened top support assembly on the limb tower (2) of the first section is supported on the inner wall of the limb tower (2), and the top support assembly of the second section is arranged on the buckle bracket (4) of the second section to support the formwork system; The above construction process is repeated, and the next segment limb tower (2) is constructed based on the previous segment in the remaining segments, until the tops of the two limb towers (2) are connected.

3. The double-limb tower body construction method as claimed in claim 2, characterized in that: The specific process of joining the tops of the two limb towers (2) is as follows: Erecting the steel frame of the last segment of the limb tower (2), and erecting a buckle bracket (4) whose structure is compatible with the space formed between the two limb towers (2); The formwork system of the last section is set up on the periphery of the limb tower (2), the formwork system is supported by a supporting assembly, and a bent frame (52) for supporting the joint section is set on the top of the buckle bracket (4); The final section of concrete is poured to complete the center tower column.

4. The method for constructing a double-limb tower body as claimed in claim 2, wherein: When the construction reaches the third section, a hydraulic climbing formwork system (3) is installed on the outer side of the steel frame of the limb tower (2), and at the same time, a buckle bracket (4) is erected and extended in a direction away from the inner wall of the limb tower (2) to between the hydraulic climbing formwork systems (3) of the two limb towers (2); When the construction reaches the fourth section to the joint section, the hydraulic climbing formwork system (3) starts climbing.

5. The method for constructing a double-limb tower body as claimed in claim 1, characterized in that: A supporting assembly for supporting the formwork system and the limb tower (2) is arranged inside the buckle bracket (4).

6. The method for constructing a double-limb tower body as claimed in claim 5, characterized in that: The supporting assembly comprises two supporting rods (42) and a supporting bracket (41) arranged at one end of the supporting rods (42) close to the inner template (22); The two support rods (42) are arranged in an X-shape and staggered, and the support rods (42) are connected to the vertical rods of the buckle bracket (4) through a lock.

7. The method for constructing a double-limb tower body as claimed in claim 6, characterized in that: The top support (42) is adjusted and fixed at an angle by means of a lock so that the center line of the top support (41) is perpendicular to the inner template (22).

8. The method for constructing a double-limb tower as claimed in claim 4, characterized in that: The hydraulic climbing formwork system (3) comprises a guide rail, a hydraulic climbing frame and a hydraulic system platform.

9. The method for constructing a double-limb tower body as claimed in claim 8, characterized in that: Before pouring concrete for each segment limb tower (2), climbing cones required by the hydraulic climbing formwork system (3) and embedded parts required by other processes are pre-embedded.

10. The method for constructing a double-limb tower as claimed in claim 1, characterized in that: The formwork system comprises an outer formwork (21) installed on the outside of the limb tower (2) frame and an inner formwork (22) installed on the inside of the limb tower (2).

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