Steel pipe column bracket joint and manufacturing method thereof

By designing the corbel joint of the steel pipe column, and adopting bending and multi-layer welding methods, the problem of complex truss layer joint design was solved, achieving structural simplification and improved construction efficiency.

CN121345238APending Publication Date: 2026-01-16XIN CHANG CHENG ZHANGZHOU HEAVY IND CO LTD
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Patent Information

Application Number
CN202410953570.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-16
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

In existing steel structure buildings, the design of truss layer nodes is complex and difficult to manufacture, which affects construction efficiency and safety.

Method used

The steel pipe column corbel joint structure is adopted, including steel pipe column, node plate, first corbel and second corbel. Through bending and multi-layer welding, combined with internal partition and stiffening plate, the connection of the joint is simplified.

Benefits of technology

The node structure is simplified, with sufficient strength and stability, reducing manufacturing difficulty, minimizing welding deformation, and improving construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a steel pipe column bracket joint which comprises a steel pipe column, a joint plate, a first bracket and a second bracket. The gusset plates are fixedly arranged in the steel pipe columns, and the two sides penetrate through the steel pipe columns correspondingly. The first brackets are horizontally arranged on the two sides of the steel pipe column and fixedly connected with the gusset plate and the steel pipe column. The second brackets are located under the first brackets, obliquely arranged on the two sides of the steel pipe column and fixedly connected with the gusset plates. And the first bracket and / or the second bracket are / is slotted and inserted into the gusset plate and / or partially formed by the gusset plate. On the basis, the invention further discloses a manufacturing method of the steel pipe column bracket joint. The joint structure is simple, sufficient strength, rigidity and stability are achieved, the force transmission requirement can be met, durable connection support is provided, a reasonable assembly sequence is set in the method, and on the basis that the manufacturing precision is guaranteed, deformation and residual stress of components can be reduced, and welding deformation can be effectively controlled.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, in particular to a steel pipe column corbel joint and a manufacturing method thereof. BACKGROUND

[0002] With the rapid development of steel structure buildings, the use of steel structure buildings in high-rise and super high-rise buildings is also increasing, and the processing and manufacturing, structural safety and other aspects are also facing higher requirements. In most super high-rise steel structure buildings, in order to ensure the structural safety performance, the truss layer and the refuge layer are usually considered to be set at the key position during design. The addition of truss layer not only can enhance the overall rigidity and stability of the building, but also can greatly improve the resistance of the building to wind load and earthquake and other lateral loads, which is crucial to resist the lateral load increased due to the increase of height.

[0003] The design and construction of the truss layer, especially the node thereof, need precise engineering calculation and high-quality technology to ensure the rigidity of the node itself. The structure of the existing node is increasingly complex, and the welding is not easy, and the node manufacturing difficulty is also increasing. SUMMARY

[0004] The purpose of the present application is to provide a steel pipe column corbel joint and a manufacturing method thereof, and the node structure is simple and stable.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A steel pipe column corbel joint, comprising a steel pipe column, a node plate, a first corbel and a second corbel; the node plate is fixedly arranged in the steel pipe column and penetrates the steel pipe column on both sides; the first corbel is horizontally arranged on both sides of the steel pipe column and is fixedly connected with the node plate and the steel pipe column; the second corbel is obliquely arranged on both sides of the steel pipe column and is located directly below the first corbel, and the second corbel is fixedly connected with the node plate; the first corbel and / or the second corbel is / are slotted and inserted with the node plate and / or partially composed of the node plate.

[0006] Further, the node plate is arranged in a bent manner, and the bending line is located inside the steel pipe column.

[0007] Further, the steel pipe column comprises at least two sections of steel pipes which are sequentially connected in sequence from top to bottom, and the included angle between the uppermost steel pipe and its adjacent steel pipe is an obtuse angle, and the node plate is inserted among the steel pipes.

[0008] Further, a plurality of inner partitions are arranged inside the steel pipe column, the inner partitions are arranged in a fan ring shape on the two side surfaces of the node plate and are arranged in a spaced manner along the axial direction of the steel pipe column; the inner partitions, the steel pipe column and the node plate are welded in a gasket welding form and are fully penetrated.

[0009] Further, the first bracket and the second bracket adopt H-shaped brackets, the flange plates of the first bracket and the second bracket are respectively inserted into the joint plate with grooves, and the web plates are all composed of joint plates.

[0010] Further, the web plates of the first bracket and the second bracket are all composed of joint plates, the flange plate of the first bracket is inserted into the joint plate with a groove, and the flange plate of the second bracket is vertically fixed on the side edge of the joint plate, and the upper flange plate is connected to the lower flange plate of the first bracket.

[0011] Further, the steel pipe column is provided with a third bracket and an external insertion plate outside, and a stiffener plate inside, the external insertion plate is vertically connected to the outer wall surface of the steel pipe column, the stiffener plate is vertically connected to the inner wall surface of the steel pipe column, and the position corresponds to the external insertion plate, and the third bracket is horizontally arranged and inserted into the external insertion plate or partially composed of the external insertion plate.

[0012] Further, the steel pipe column is provided with a fourth bracket and a through insertion plate outside, the through insertion plate vertically penetrates the steel pipe column and is fixedly connected to the steel pipe column and the joint plate, and the fourth bracket is horizontally arranged and inserted into the through insertion plate or partially composed of the through insertion plate.

[0013] A manufacturing method of a steel pipe column bracket joint, comprising the following steps: S1. The steel pipe column is divided into two steel pipe segments along the radial direction, and a groove for inserting the joint plate is cut on the steel pipe segment according to the relative position relationship between the joint plate and the steel pipe column, and a bevel is processed; S2. A fitting position line corresponding to the steel pipe column and the inner partition plate is drawn on the joint plate, and then the steel pipe segments are sequentially welded on the joint plate according to the fitting position line, and the inner partition plate is welded by the back-off method; S3. The first bracket and the second bracket are welded.

[0014] Further, in step S2, the steel pipe segments are assembled as follows: first, a fitting template is drawn on the water platform according to the horizontal projection size of the steel pipe segment and the joint plate, then the steel pipe segment is vertically placed and inserted into the joint plate, the outer contour of the steel pipe segment, the center of the steel pipe segment, and the center of the groove are ensured to correspond to the fitting template, the distance between the joint plate and the water platform is controlled, and then the steel pipe segment and the joint plate are welded and fixed.

[0015] Further, in step S2, the stiffener plate arranged in the steel pipe column is also welded on the joint plate; in step S3, the external insertion plate is also welded at the position corresponding to the stiffener plate outside the steel pipe column, and the bracket is inserted into and welded on the external insertion plate.

[0016] Furthermore, step S1 also includes selecting a through-hole plate, and dividing the steel pipe column into two steel pipe segments and multiple arc-shaped tiles located between the steel pipe segments along the radial and axial directions of the steel pipe column according to the relative positional relationship between the node plate, the through-hole plate and the steel pipe column; step S2 also includes drawing an assembly position line corresponding to the through-hole plate on the node plate, and welding the through-hole plate on the node plate according to the assembly position line, and then welding the arc-shaped tiles and the steel pipe segments; step S3 also includes welding a bracket at the through-hole plate.

[0017] The present invention has the following beneficial effects: 1. This invention provides a steel pipe column corbel joint. The joint has a simple structure, sufficient strength, rigidity and stability, can meet the force transmission requirements, provide durable connection support, and is relatively easy to manufacture. The components in the joint can be pre-assembled, avoiding complex on-site welding and facilitating construction.

[0018] 2. This invention provides a method for manufacturing a steel pipe column corbel joint. By rationally disassembling the steel pipe column and setting the assembly sequence, the deformation and residual stress of the components can be reduced while ensuring manufacturing accuracy, and welding deformation can be effectively controlled. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first node structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the first type of node front view structure of the present invention.

[0021] Figure 3 This is a top view schematic diagram of the first type of node structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the second node structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the third node structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the fourth node structure of the present invention (I).

[0025] Figure 7 This is a schematic diagram (II) of the fourth node structure of the present invention.

[0026] Figure 8 This is a schematic diagram of the welding sequence of the steel pipe section and the node plate of the present invention.

[0027] Figure 9 This is a schematic diagram of the first type of node assembly sequence of the present invention.

[0028] Figure 10This is a schematic diagram of the projection layout of the steel pipe section and the node plate of the present invention.

[0029] Figure 11 This is a schematic diagram of the assembly of the steel pipe section and the node plate of the present invention.

[0030] Figure 12 This is a schematic diagram of the assembly of the steel pipe section and the node plate of the present invention.

[0031] Figure 13 This is a schematic diagram of the steel pipe column division for the fourth type of node structure of the present invention.

[0032] Figure 14 This is a schematic diagram of the through-hole plate assembly in the fourth node structure of the present invention.

[0033] Figure 15 This is a schematic diagram of the fourth type of node structure assembly according to the present invention.

[0034] Explanation of main component symbols: 1. Steel pipe column; 2. Node plate; 3. First corbel; 4. Second corbel; 5. Inner diaphragm; 6. Bending line; 7. First stiffening plate; 8. Third corbel; 9. Outer insert plate; 10. Second stiffening plate; 11. Fourth corbel; 12. Through insert plate; 13. First through insert plate; 14. Second through insert plate; 15. Third through insert plate; 16. Fourth through insert plate; 17. T-shaped plate; 18. Fourth stiffening plate; 19. Steel pipe section; 20. Groove; 21. First group of inner diaphragms; 22. Second group of inner diaphragms; 23. Third group of inner diaphragms; 24. Assembled ground pattern; 25. Positioning line; 26. Curved tile; a~d, Projection points. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1: As Figures 1-3 As shown, this invention discloses a steel pipe column corbel joint, including a steel pipe column 1, a node plate 2, two first corbels 3, and two second corbels 4. The node plate 2 is fixedly installed inside the steel pipe column 1, and extends through the steel pipe column 1 on both sides. The two first corbels 3 are horizontally installed on both sides of the steel pipe column 1, and are fixedly connected to both sides of the node plate 2 and the outer walls of both sides of the steel pipe column 1. The two second corbels 4 are inclinedly installed on both sides of the steel pipe column 1, and are positioned directly below the two first corbels 3, respectively, and are fixedly connected to both sides of the node plate 2.

[0037] Specifically, the steel pipe column 1 is made of round steel pipe and includes at least two sections of steel pipe arranged sequentially along its own axial direction and connected vertically. Correspondingly, the node plate 2 is inserted into each section of steel pipe. Using at least two sections of steel pipe joined together to form the steel pipe column 1 facilitates the insertion and assembly of the node plate 2. Generally, the axial directions of each section of steel pipe are arranged parallel to each other. Alternatively, as shown... Figure 4 As shown, the included angle between the axes of the uppermost steel pipe and its adjacent steel pipes is set to an obtuse angle, that is, the column end can be set with an angle.

[0038] The steel pipe column 1 is equipped with multiple internal partitions 5, which are arranged in a fan-shaped ring on both sides of the node plate 2 and spaced apart along the axis of the steel pipe column 1 to improve structural strength and rigidity. The internal partitions 5 are fully penetrated welded to the steel pipe column 1 and the node plate 2 using a backing weld to ensure welding quality and prevent welding deformation.

[0039] The node plate 2 is bent, and the bending line 6 is located inside the steel pipe column 1 and close to the center of the steel pipe column 1. That is, there is a certain angle between the two sides of the node plate 2.

[0040] The first corbel 3 and / or the second corbel 4 strengthen the connection between themselves and the node plate 2 and the steel pipe column 1 by slotting and inserting the node plate 2, and / or by partially constituting the node plate 2. In this embodiment, the first corbel 3 and the second corbel 4 are H-shaped corbels, and a first stiffening plate 7 can be added between the flange of the first corbel 3 and the node plate 2, and between the flange of the second corbel 4 and the node plate 2, to enhance the load-bearing capacity. As one case, the flanges of the first corbel 3 and the second corbel 4 are respectively slotted and inserted into the node plate 2, and the webs are all composed of the node plate 2. As another case, such as Figure 5 As shown, the wing plate of the first bracket 3 is slotted and inserted into the node plate 2, and the wing plate of the second bracket 4 is vertically fixed to the side of the node plate 2. The web plates of the first bracket 3 and the second bracket 4 are both composed of the node plate 2. The wing plate on the upper side of the second bracket 4 extends to the wing plate on the lower side of the first bracket 3 and connects to the lower wing plate of the first bracket 3.

[0041] In addition to the first corbel 3 and the second corbel 4, a third corbel 8 can also be installed on the outer side of the steel pipe column 1. The third corbel 8 is connected to the steel pipe column 1 via an outer insert plate 9. The outer insert plate 9 is installed on the outer side of the steel pipe column 1 and is vertically connected to the outer wall of the steel pipe column 1. A stiffening plate is added inside the steel pipe column 1, which is defined as the second stiffening plate 10. The second stiffening plate 10 is vertically connected to the inner wall of the steel pipe column 1, and its position corresponds to the inner and outer sides of the outer insert plate 9 to enhance the structural bearing capacity and improve the local stress distribution. The third corbel 8 is horizontally installed, and the third corbel 8 is slotted to insert the outer insert plate 9 or is partially composed of the outer insert plate 9, thereby realizing the mutual connection between it and the steel pipe column 1.

[0042] A fourth bracket 11 may also be installed on the outside of the steel pipe column 1. The fourth bracket 11 is connected to the steel pipe column 1 through a through plate 12. The through plate 12 penetrates the steel pipe column 1 vertically and fixes the steel pipe column 1 to the node plate 2. The fourth bracket 11 is installed horizontally and is slotted to insert the through plate 12 or is partially composed of the through plate 12.

[0043] The aforementioned third bracket 8 and fourth bracket 9 can be box-type brackets, H-type brackets, irregular-shaped brackets, etc. When a box-type bracket is used, it is preferred to assemble it by slotting and inserting the outer insert plate 9 and the through insert plate 12, and a third stiffening plate (not shown) can be provided between the inner wall surface and the outer insert plate 9. When an H-type bracket is used, it is preferred to use the outer insert plate 9 and the through insert plate 12 as the components of the wing plate and / or web plate to improve the connection strength.

[0044] Taking the third type of node structure as an example, this structure has three third brackets 8, two of which are box-shaped brackets with slotted outer plates 9, and one of which uses the outer plate 9 as its web. Taking the fourth type of node structure as an example, such as... Figure 6 , 7 As shown, in this structure, the through-plate 12 includes a horizontally arranged first through-plate 13, a second through-plate 14, a third through-plate 15, and a vertically arranged fourth through-plate 16. The positions of the first through-plate 13 and the second through-plate 14 correspond to the positions of the upper and lower flanges of the first corbel 3, respectively. The third through-plate 15 and the fourth through-plate 16 are both located between the first through-plate 13 and the second through-plate 14. Multiple fourth stiffening plates 18 are arranged between and on both sides of the first through-plate 13 and the second through-plate 14, and these fourth stiffening plates 18 are arranged radially at intervals along the steel pipe column 1.

[0045] The fourth corbel 11 is provided in three ways: one is composed of a T-shaped plate 17 and a first through plate 13 or a T-shaped plate 17 and a second through plate 14; one is slotted and inserted into a third through plate 15; one is a web plate composed of a fourth through plate 16 and part of the wing plate is composed of the second through plate 14.

[0046] The nodes of this invention come in various forms and have a simplified structure, making them relatively easy to manufacture. They possess sufficient strength, rigidity, and stability to meet force transmission requirements and provide durable connection support. Most components in the nodes can be pre-assembled in the factory, avoiding complex on-site welding, reducing on-site installation difficulty, and facilitating construction.

[0047] Example 2: Based on Example 1 above, the present invention also provides a method for manufacturing a steel pipe column corbel joint, comprising the following steps: S1. Divide the steel pipe column 1 into two steel pipe sections 19 along the radial direction. According to the relative positional relationship between the node plate 2 and the steel pipe column 1, cut out the corresponding grooves 20 on the steel pipe section 19 for inserting the node plate 2, and process the bevel.

[0048] S2. Mark the assembly position lines on the node plate 2 corresponding to the steel pipe column 1 and its inner partition 5. Then, according to the assembly position lines, weld the steel pipe section 19 on the node plate 2 in sequence, and weld the inner partition 5 at the same time. Among them, the node plate 2 and the steel pipe section 19 are welded in multiple layers and multiple passes symmetrically, and the inner partition 5 is welded by the retraction method.

[0049] like Figure 8 As shown, when welding node plate 2 and steel pipe section 19, gas shielded welding can be used. Two welders can weld simultaneously on both sides of node plate 2. The first weld can be welded to 1 / 3 of the bevel depth. Then, turn it 180 degrees and weld to 1 / 2 of the bevel depth. Then turn it 180 degrees again and weld the remaining 2 / 3 of the bevel. Finally, turn it 180 degrees and weld the remaining 1 / 2 of the bevel to complete the welding.

[0050] like Figure 9 As shown, taking the fabrication of the first type of node as an example, the inner partition 5 can be divided into three groups during assembly. The first group of inner partitions 21 is assembled and welded before assembling the first steel pipe section 19. After the first steel pipe section 19 is welded, the second group of inner partitions 22 is assembled and welded to the inside of the first steel pipe section 19. After the second group of inner partitions 22 is welded, the third group of inner partitions 23 is assembled and welded. The assembly and welding of the inner partition 5 is completed by unassembling and unwelding. Then the second steel pipe section 19 is assembled and welded.

[0051] S3. Weld the first bracket 3, the second bracket 4, the third bracket 8, the fourth bracket 11, etc.

[0052] More specifically, in step S2, before welding the node plate 2 to the steel pipe segment 19, the steel pipe segment 19 and the node plate 2 can be projected and positioned. For example... Figure 10 As shown, during assembly, firstly, based on the horizontal projection dimensions of the steel pipe section 19 to be assembled and the node plate 2, a 1:1 assembly pattern 24 is drawn on a horizontal platform. According to the characteristics of the components, the assembly pattern 24 is divided into... Figure 11 , 12Both types shown include the projection line of the outer wall of the steel pipe segment 19, the projection point of the center line of the steel pipe segment 19, and projection points a to d located on the projection line of the outer wall of the steel pipe segment 19. Next, four positioning lines 25 are drawn on the outer wall of the steel pipe segment 19 along its axial direction. The position of one of the positioning lines 25 corresponds to the center of the longitudinal weld seam during the rolling of the steel pipe segment 19. In this embodiment, the position of the longitudinal weld seam corresponds to the position of the groove 20. Then, the steel pipe segment 19 is placed vertically and the node plate 2 is inserted, ensuring that the outer contour of the steel pipe segment 19 coincides with its projection line, ensuring that the center of the steel pipe segment 19 and the center of the groove 20 correspond to the ground pattern, and controlling the distance between the node plate 2 and the water platform. The steel pipe segment 19 and the node plate 2 can then be welded and fixed.

[0053] When the node has a third corbel 8, taking the fabrication of the first to third types of nodes as examples, step S2 also includes welding a stiffening plate, i.e., a second stiffening plate 10, onto the node plate 2 inside the steel pipe column 1. Similar to the first set of inner partitions 21, before assembly, the assembly position lines corresponding to the second stiffening plate 10 need to be drawn on the node plate 2, and welding is performed before the steel pipe section 19 is assembled. Correspondingly, step S3 also includes welding an outer insert plate 9 onto the outside of the steel pipe column 1, with the welding position corresponding to the inner and outer positions of the second stiffening plate 10, and then inserting and welding a corbel, i.e., a third corbel 8, onto the outer insert plate 9.

[0054] When the node has a fourth corbel 11, such as Figures 13-15 As shown, taking the fabrication of the fourth type of node as an example, step S1 further includes selecting a through-plate 12, and dividing the steel pipe column 1 into two steel pipe segments 19 and multiple arc-shaped tiles 26 located between the steel pipe segments 19 along the radial and axial directions of the steel pipe column 1 according to the relative positional relationship between the node plate 2, the through-plate 12 and the steel pipe column 1. Step S2 further includes drawing the assembly position line corresponding to the through-plate 12 on the node plate 2, and welding the through-plate 12 onto the node plate 2 according to the assembly position line, and then welding the arc-shaped tiles 26 and the steel pipe segments 19 in sequence. Correspondingly, step S3 further includes welding a bracket, i.e., the fourth bracket 11, at the through-plate 12.

[0055] By rationally disassembling the steel pipe column 1 and setting the assembly sequence using the above method, nodes can be manufactured efficiently with less difficulty. Moreover, while ensuring manufacturing accuracy, the deformation and residual stress of the components can be reduced, and welding deformation can be effectively controlled.

[0056] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the invention without departing from the spirit and scope of the invention as defined in the appended claims are within the scope of protection of the invention.

Claims

1. A steel tubular column haunch joint, characterized by: The application relates to a steel pipe column structure, which comprises a steel pipe column, a node plate, a first bracket and a second bracket.

2. A steel tubular column haunch joint as claimed in claim 1 wherein: The node plate is fixedly arranged in the steel pipe column and penetrates the steel pipe column on both sides; the first bracket is horizontally arranged on both sides of the steel pipe column and fixedly connected with the node plate and the steel pipe column; the second bracket is obliquely arranged on both sides of the steel pipe column and located directly below the first bracket, and the second bracket is fixedly connected with the node plate; the first bracket and / or the second bracket is / are slottedly inserted with the node plate and / or partially formed by the node plate.

3. A steel tubular column haunch joint as claimed in claim 1 wherein: The node plate is arranged in a bending mode, and the bending line is located in the steel pipe column.

4. A steel tube column haunch joint as defined in claim 1, wherein: The steel pipe column comprises at least two steel pipes which are sequentially connected in sequence from top to bottom, and the included angle between the uppermost steel pipe and the adjacent steel pipe is an obtuse angle; and the node plate is inserted among the steel pipes.

5. A steel tube column haunch joint as defined in claim 1, wherein: The steel pipe column is internally provided with a plurality of inner partition plates which are arranged in a fan ring mode on both side surfaces of the node plate and are arranged in a spacing mode along the axial direction of the steel pipe column; the inner partition plates, the steel pipe column and the node plate are all welded in a full penetration welding mode by using a gasket.

6. A steel tube column haunch joint as defined in claim 1, wherein: The first bracket and the second bracket are H-shaped brackets, the wing plates of the first bracket and the second bracket are slottedly inserted with the node plate, and the web plates are all formed by the node plate.

7. A steel tube column haunch joint as defined in claim 1, wherein: The web plates of the first bracket and the second bracket are all formed by the node plate, the wing plate of the first bracket is slottedly inserted with the node plate, and the wing plate of the second bracket is vertically fixed on the side edge of the node plate and the upper wing plate is connected to the lower wing plate of the first bracket.

8. A steel tube column haunch joint as defined in claim 1, wherein: The steel pipe column is externally provided with a third bracket and an external insertion plate and internally provided with a stiffening plate; the external insertion plate is vertically connected to the outer wall surface of the steel pipe column; the stiffening plate is vertically connected to the inner wall surface of the steel pipe column and corresponds to the external insertion plate in position; and the third bracket is horizontally arranged and inserted with the external insertion plate or partially formed by the external insertion plate.

9. A method of fabricating a steel pipe column bracket joint as claimed in any one of claims 1 to 8, characterised in that, The steel pipe column is externally provided with a fourth bracket and a penetrating insertion plate; the penetrating insertion plate vertically penetrates the steel pipe column and fixedly connects the steel pipe column and the node plate; and the fourth bracket is horizontally arranged and inserted with the penetrating insertion plate or partially formed by the penetrating insertion plate. The application further discloses a steel pipe column structure manufacturing method. S1. The steel pipe column is divided into two steel pipe sections along the radial direction, and a slot for inserting the node plate is cut on the steel pipe section according to the relative position relationship between the node plate and the steel pipe column, and a bevel is processed; S2. A fitting position line corresponding to the steel pipe column and the inner partition plate is drawn on the node plate, and then the steel pipe sections are sequentially welded on the node plate according to the fitting position line, and the inner partition plate is welded by using a dismounting method; 10. The method of claim 9, wherein the method further comprises: S3. The first bracket and the second bracket are welded. In step S2, the steel pipe section is fitted as follows: firstly, a fitting sample is drawn on a water platform according to the horizontal projection size of the steel pipe section and the node plate, then the steel pipe section is vertically placed and inserted with the node plate, the outer contour of the steel pipe section, the center of the steel pipe section, the center of the slot and the fitting sample are ensured to correspond to each other, the spacing between the node plate and the water platform is controlled, and then the steel pipe section and the node plate are welded and fixed.

11. The method of claim 9, wherein: the step S2 further comprises welding the stiffening plate on the node plate; and the step S3 further comprises welding the outrigger plate on the outside of the steel pipe column at a position corresponding to the stiffening plate, and inserting and welding the outrigger on the outrigger plate.

12. The method of claim 9, wherein: the step S1 further comprises selecting the through-insert plate, and dividing the steel pipe column into two steel pipe segments and a plurality of arc-shaped tiles located between the steel pipe segments according to the relative positional relationship among the node plate, the through-insert plate and the steel pipe column along the radial and axial directions of the steel pipe column; the step S2 further comprises drawing an assembly position line on the node plate corresponding to the through-insert plate, and welding the through-insert plate on the node plate according to the assembly position line, and then welding the arc-shaped tiles and the steel pipe segments; and the step S3 further comprises welding the outrigger at the through-insert plate. ​ ​ ​ ​ ​