Welding structure and welding method for horizontal inner partition plate of rhombic steel pipe column

Abstract

The invention relates to the technical field of steel structure construction, in particular to a welding structure and a welding method for a horizontal inner partition plate of a rhombic steel pipe column, the welding structure comprises a slope supporting structure, the rhombic steel pipe column, the horizontal inner partition plate, an electroslag welding arc striking block, an electroslag welding arc quenching block and a tubular welding rod; the rhombic steel pipe column is transversely arranged on the inclined face supporting structure, the two second side plates are both in a vertical state, and welding base plate strips are fixedly arranged on the two sides of the two unwelded side edges of the horizontal inner partition plate so that electroslag welding pool cavities can be formed in the two sides of the horizontal inner partition plate. Each electroslag welding pool cavity is communicated with the two corresponding open holes up and down to form a through pool cavity; an arc striking block and an arc quenching block are respectively arranged below and above the through molten pool cavities, and a tubular welding rod is inserted into each through molten pool cavity; according to the welding structure and the welding method, the welding problem between the horizontal inner partition plate and the rhombic steel pipe column side plate is solved, and the welding efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction, and in particular to a welding structure and a welding method for a horizontal inner partition of a diamond-shaped steel pipe column. Background Art

[0002] At present, the electroslag welding process for the inner partition of the box-type column is relatively mature, but in the steel pipe column with a bidirectional inclination and a diamond shape, there are still technical difficulties in the horizontal setting of the inner partition and its welding with the wall panel. In particular, when the inclination angle of the steel column is greater than 45° or even 60°, the traditional electroslag welding method is difficult to adapt to this special structural form. The electroslag welding process for the inner partition of the box-type column in the prior art usually adopts the method of placing the steel pipe column vertically for electroslag welding, but for the bidirectional inclined diamond steel pipe column, this method is difficult to operate and the welding quality is difficult to guarantee. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention discloses a welding structure and a welding method for a horizontal inner partition of a diamond steel pipe column, so as to solve the problems in the prior art that the electroslag welding process of the diamond steel pipe column is difficult to operate and the welding quality is difficult to ensure.

[0004] The invention discloses a welding structure of a horizontal inner partition of a diamond-shaped steel pipe column, comprising: an inclined support structure, a diamond-shaped steel pipe column, a horizontal inner partition, an electroslag welding arc starting block, an electroslag welding arc extinguishing block and a tubular welding rod;

[0005] The diamond-shaped steel pipe column is assembled by two oppositely arranged first side plates and two oppositely arranged second side plates, and two oppositely arranged two sides of the horizontal inner partition are welded together with the two first side plates;

[0006] The inclined support structure includes a plurality of inclined support members arranged at intervals, the diamond-shaped steel pipe column is transversely arranged on the inclined support structure, and the two second side plates are in a vertical state, and welding pad strips are fixedly arranged on both sides of each of the other two oppositely arranged side edges of the horizontal inner partition so as to form an electroslag welding pool cavity with a parallelogram cross-section on both sides of the horizontal inner partition, the electroslag welding pool cavity is surrounded by the side edges of the horizontal inner partition, the two welding pad strips and the second side plate, and the two first side plates are provided with openings corresponding to the electroslag welding pool cavity, the size of the openings corresponds to the electroslag welding pool cavity, and each of the electroslag welding pool cavities is connected with two corresponding openings above and below it to form a through pool cavity with a parallelogram cross-section;

[0007] The two through-molten-pool cavities below the first side plate at the bottom are respectively provided with electroslag welding arc-starting blocks, and the two through-molten-pool cavities above the first side plate at the top are respectively provided with electroslag welding arc-extinguishing blocks;

[0008] A tubular welding rod is inserted into each of the through-molten pool cavities, and one end of the tubular welding rod passes through the electroslag welding arc extinguishing block and the through-molten pool cavity in sequence and is arranged in the electroslag welding arc starting block, the other end of the tubular welding rod is arranged on the electroslag welding arc extinguishing block, and a limiting welding wire is arranged on the tubular welding rod so that the tubular welding rod is located at the diagonal center of the through-molten pool cavity.

[0009] In some of the embodiments, each of the inclined support members includes an H-shaped steel and a pad located on the top of the H-shaped steel, the top of the pad has an inclined surface, and the inclination angle of the inclined surface is the same as the inclination angle of the first side plate.

[0010] In some of the embodiments, the upper surface of the electroslag welding arc starting block is an inclined surface, and the lower surface is a plane, and the inclination angle of the upper surface of the electroslag welding arc starting block is the same as the inclination angle of the first side plate, and a jack is provided at the bottom of the electroslag welding arc starting block so that the upper surface of the electroslag welding arc starting block can be closely attached to the lower surface of the first side plate located below through the jack.

[0011] In some of the embodiments, a pad is provided between the jack and the electroslag welding arc starting block.

[0012] In some of the embodiments, the upper surface and the lower surface of the electroslag welding arc extinguishing block are both inclined surfaces, and the inclination angles of the upper surface and the lower surface of the electroslag welding arc extinguishing block are the same as the inclination angle of the first side plate.

[0013] In some of the embodiments, the electroslag welding arc-starting block and the electroslag welding arc-extinguishing block are both made of copper, and the arc-starting block and the arc-extinguishing block are both composed of two copper blocks spliced ​​together.

[0014] In some of the embodiments, a plurality of cross-limiting welding wires are spaced apart on the outer side of the tubular welding rod.

[0015] In some of the embodiments, a plurality of straight-line limiting welding wires are spaced apart on the outer side of the tubular welding rod, and two straight-line limiting welding wires adjacent to each other are staggered to form a cross.

[0016] In some of the embodiments, the limiting welding wire and the tubular welding rod are made of the same material.

[0017] In addition, the present invention also discloses a method for welding a diamond-shaped steel pipe column horizontal inner partition, based on the welding structure of the diamond-shaped steel pipe column horizontal inner partition, wherein the welding method comprises the following steps:

[0018] Installing the inclined support structure in the welding construction area;

[0019] Assembling the diamond-shaped steel pipe columns, and arranging horizontal inner partitions and welded pad strips inside the diamond-shaped steel pipe columns, and arranging the diamond-shaped steel pipe columns transversely on the inclined support structure, and the two second sides of the diamond-shaped steel pipe columns are both in a vertical state;

[0020] An electroslag welding arc-starting block is respectively provided below the first side plate at the bottom and corresponds to the two through-molten-pool cavities, and the electroslag welding arc-starting block is communicated with the through-molten-pool cavity, and an electroslag welding arc-extinguishing block is provided above the first side plate at the top and corresponds to the two through-molten-pool cavities, and the electroslag welding arc-extinguishing block is communicated with the through-molten-pool cavity;

[0021] Inserting a tubular welding rod obliquely into each of the through-molten-pool cavities, and making the tubular welding rod located at the diagonal center of the through-molten-pool cavity;

[0022] The electroslag welding wires of the two electroslag welding wire feeders are respectively tiltedly arranged in the two tubular welding rods, and the tilt angle of the electroslag welding wire is the same as the tilt angle of the tubular welding rod;

[0023] Using the two electroslag welding wire feeders to simultaneously perform a nozzle electroslag welding process at the two through-molten pool cavities to weld and fix the horizontal inner partition plate and the two second side plates together;

[0024] Remove the electroslag welding arc extinguishing block and the electroslag welding arc starting block.

[0025] Compared with the prior art, the above invention has at least one of the following advantages or beneficial effects:

[0026] 1. The present invention realizes the horizontal setting of the inner partition in the diamond steel pipe column, and effectively solves the welding problem between the horizontal inner partition and the side plate of the diamond steel pipe column, improves the welding efficiency and quality, and reduces the operational difficulty of the electroslag welding of the horizontal inner partition.

[0027] 2. The present invention designs an electroslag welding pool cavity and welding pad strips that adapt to the characteristics of bidirectional inclined diamond steel pipe columns, ensuring stability and weld quality during the welding process, thereby improving construction efficiency and structural safety.

[0028] 3. The present invention introduces the electroslag welding technology of tubular electrode nozzle, and sets a limiting welding wire on the tubular electrode so that the tubular electrode is located at the diagonal center of the through-molten pool cavity, thereby effectively solving the welding problem under inclined conditions.

[0029] Fourth, the present invention optimizes the control of the welding start and end stages through the design of the electroslag arc starting block and the electroslag arc extinguishing block, thereby improving the stability and safety of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0031] Figure 1 This is a schematic diagram of the connection between the diamond-shaped steel pipe column and the platform steel beam in an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the welding structure of the horizontal inner partition of the diamond-shaped steel pipe column after removing a second side plate in an embodiment of the present invention;

[0033] Figure 3 A cross-sectional view of an electroslag welding molten pool cavity in an embodiment of the present invention;

[0034] Figure 4 This is a connection relationship diagram of the side plates, horizontal inner partitions and welding pad strips in the welding structure of the horizontal inner partition of the diamond-shaped steel pipe column in an embodiment of the present invention.

[0035] Figure 5 This is a connection relationship diagram of the diamond steel pipe column, the electroslag welding arc extinguishing block and the tubular welding rod in the welding structure of the horizontal inner partition of the diamond steel pipe column in the embodiment of the present invention.

[0036] Figure 6 It is a side view of the welding structure of the horizontal inner partition of the diamond-shaped steel pipe column in an embodiment of the present invention.

[0037] Figure 7 It is a schematic diagram of the assembly and explosion of the arc starting block for electroslag welding in an embodiment of the present invention;

[0038] Figure 8 It is a schematic diagram of the assembly and explosion of the arc extinguishing block for electroslag welding in an embodiment of the present invention;

[0039] Fig. 9 It is a schematic structural diagram of a tubular welding rod provided with a cross-limiting welding wire in an embodiment of the present invention;

[0040] Fig.10 It is a structural schematic diagram of a tubular welding rod provided with a straight-line limiting welding wire in an embodiment of the present invention;

[0041] Among them, 1 is a diamond-shaped steel pipe column; 11 is the first side plate located at the bottom; the first opening; 12 is the second side plate; 13 is the first side plate located at the top; 131 is the second opening; 14 is a horizontal inner partition; 2 is a platform steel beam; 3 is a welding pad strip; 4 is an electroslag welding arc extinguishing block; 5 is an electroslag welding arc starting block; 6 is a tubular welding rod; 61 is a welding rod wire; 62 is a welding rod coating; 7 is a limiting welding wire; 71 is a cross limiting welding wire; 72 is a straight limiting welding wire; 8 is a jack; and 9 is an inclined support. DETAILED DESCRIPTION

[0042] The present invention is further described below with reference to the accompanying drawings and specific embodiments, but is not intended to be a limitation of the present invention.

[0043] Embodiment 1:

[0044] like Figures 1 to 10 As shown, this embodiment discloses a welding structure of a horizontal inner partition of a diamond-shaped steel pipe column, and there is a bidirectional inclination angle between the horizontal inner partition 14 and the side plate of the diamond-shaped steel pipe column 1; Figure 1The figure is a schematic diagram of the connection structure of the diamond-shaped steel pipe column 1 and the platform steel beam 2; specifically, the welding structure includes: an inclined support structure, a diamond-shaped steel pipe column 1, a horizontal inner partition 14, an electroslag welding arc starting block 5, an electroslag welding arc extinguishing block 4 and a tubular welding rod 6; the diamond-shaped steel pipe column 1 is assembled by two oppositely arranged first side plates (respectively, a first side plate 11 at the bottom and a first side plate 13 at the top when placed horizontally) and two oppositely arranged second side plates 12, and one oppositely arranged two side edges of the horizontal inner partition 14 are welded to the two first side plates, and the inclined support structure includes a plurality of spaced inclined support members 9, and the diamond The steel pipe column 1 is horizontally arranged on the inclined support structure, and the two second side plates 12 are in a vertical state. The two sides of each of the other two oppositely arranged sides of the horizontal inner partition 14 are fixedly provided with welding pad strips 3 to form an obliquely arranged electroslag welding pool cavity with a parallelogram cross-section on both sides of the horizontal inner partition 14; the welding pad strip 3 is processed into a parallelogram, and the welding pad strip 3 is tightly attached to the second side plate 12 to ensure the stability and welding quality of the welding process; the electroslag welding pool cavity is surrounded by the side of the horizontal inner partition 14, the two welding pad strips 3 and the second side plate 12. The two first side plates are provided with openings corresponding to the electroslag welding molten pool cavities (the opening of the first side plate 11 at the bottom is set as the first opening 111, and the opening of the first side plate 13 at the top is set as the second opening 131), and the size of the opening corresponds to the electroslag welding molten pool cavity, and each electroslag welding molten pool cavity is connected with the two corresponding openings above and below it to form a through molten pool cavity; the through molten pool cavity is inclined, and the cross-section is a parallelogram to adapt to the inclined state of the two first side plates; the two corresponding through molten pool cavities below the first side plate 11 at the bottom are respectively provided with electroslag welding arc starting blocks 5, and the one at the top is provided with an arc starting block 5. There are electroslag welding arc extinguishing blocks 4 corresponding to the two through-molten pool cavities above the first side plate 13; a tubular welding rod 6 is inserted in each through-molten pool cavity, and one end of the tubular welding rod 6 passes through the electroslag welding arc extinguishing block 4 and the through-molten pool cavity in turn and is arranged in the electroslag welding arc starting block 5, the other end of the tubular welding rod 6 is arranged on the electroslag welding arc extinguishing block 4, and a limiting welding wire 7 is arranged on the tubular welding rod 6 so that the tubular welding rod 6 is located at the diagonal center of the through-molten pool cavity, the limiting welding wire 7 can be a straight limiting welding wire 72, or a cross limiting welding wire 71, and the limiting welding wire and the tubular welding rod 6 have the same material and model.

[0045] Specifically, each inclined support member 9 includes an H-shaped steel and a pad located on the top of the H-shaped steel, the top of the pad having an inclined surface, and the inclination angle of the inclined surface is the same as the inclination angle of the first side plate. The upper surface of the electroslag welding arc-starting block 5 is an inclined surface, and the lower surface is a plane, and the inclination angle of the upper surface of the electroslag welding arc-starting block 5 is the same as the inclination angle of the first side plate so that the upper surface of the electroslag welding arc-starting block 5 can be closely attached to the lower surface of the first side plate 11 located at the bottom, and a spherical groove is provided in the middle of the top surface of the electroslag welding arc-starting block 5 for arc-starting in electroslag welding; and a jack 8 is provided at the bottom of the electroslag welding arc-starting block 5, so that the upper surface of the electroslag welding arc-starting block 5 is closely attached to the lower surface of the first side plate 11 located at the bottom through the jack 8; and a pad is provided between the jack 8 and the electroslag welding arc-starting block 5, so as to facilitate the electroslag welding arc-starting block 5 to be tightly pressed by the pad. The upper and lower surfaces of the electroslag welding arc-starting block 5 are both inclined surfaces, and the inclination angles of the upper and lower surfaces of the electroslag welding arc-starting block 5 are the same as the inclination angle of the first side plate; and an inclined cylindrical through cavity is provided at the center of the electroslag welding arc-starting block 5. The electroslag welding arc-starting block 5 and the electroslag welding arc-extinguishing block 4 are both made of copper, and the arc-starting block and the arc-extinguishing block are both spliced ​​together by two copper blocks (direct splicing is sufficient, no need to fix), so as to facilitate disassembly.

[0046] In an embodiment of the present invention, the above-mentioned tubular welding rod 6 includes a welding rod wire 61 and a welding rod coating 62 wrapped on the welding rod wire; and a plurality of cross limiting welding wires 71 formed by winding welding wire are arranged at intervals on the outer side of the tubular welding rod 6 so that the tubular welding rod 6 is located at the diagonal center of the cavity penetrating the molten pool; or a plurality of straight-line limiting welding wires 72 formed by winding welding wire are arranged at intervals on the outer side of the tubular welding rod 6, and two upper and lower adjacent straight-line limiting welding wires 72 are staggered to form a cross so that the tubular welding rod 6 is located at the diagonal center of the cavity penetrating the molten pool.

[0047] The present invention places the diamond steel pipe column 1 horizontally and ensures that the two second side panels 12 of the diamond steel pipe column 1 (the two second side panels 12 are the two side panels of the diamond steel pipe column 1 that are not connected to the horizontal inner partition 14) are in a vertical state, thereby forming an electroslag welding molten pool cavity with a parallelogram cross-section between the two sides of the horizontal inner partition 14 and the two second side panels 12, so as to facilitate subsequent electroslag welding. The maximum tilt position of the above-mentioned tubular welding rod 6 can reach 45°, and it has strong adaptability. The electroslag welding wire feeder is in an inclined state like the horizontal inner partition 14, and the tubular welding rod 6 is tilted and inserted into the through-molten pool cavity. The horizontal inner partition 14 can be welded to the two second side panels 12 by using two electroslag welding wire feeders to perform the molten pool electroslag welding process at the two through-molten pool cavities at the same time.

[0048] Embodiment 2:

[0049] This embodiment discloses a method for welding the horizontal inner partition of the diamond-shaped steel pipe column in the first embodiment. Specifically, the method comprises the following steps:

[0050] Step S1, installing an inclined support structure in a welding construction area;

[0051] Specifically, firstly, the two first side plates and the second side plates of the diamond-shaped steel pipe column, the horizontal inner partition plate, the welding pad strips, etc. are processed according to the design drawings; at the same time, the materials required for welding are prepared, including tubular welding rods, limiting welding wires, electroslag welding arc starting blocks, electroslag welding arc extinguishing blocks, flux, etc.; then, according to the inclination angle of the first side plates when the two second side plates of the diamond-shaped steel pipe column are in a vertical state, the inclined support structure is installed in the welding construction area, and the two first side plates are prefabricated with openings that pass through corresponding to the electroslag molten pool cavity to be formed subsequently.

[0052] Step S2, assembling to form a diamond-shaped steel pipe column with a horizontal inner partition and a welded pad strip inside, and setting the diamond-shaped steel pipe column on the inclined support structure, and making the two second side panels in a vertical state.

[0053] When assembling a diamond-shaped steel pipe column, one pair of oppositely disposed side edges of the horizontal inner partition is welded to the two first side plates (both sides are welded simultaneously to prevent the steel pipe column from deforming); and the processed welding pad strips are fixedly disposed on both sides of the other pair of oppositely disposed side edges of the horizontal inner partition, and then the two first side plates and the two second side plates are assembled together to form a diamond-shaped steel pipe column, and the welding pad strips are tightly fitted with the second side plates; the diamond-shaped steel pipe column with the horizontal inner partition and the welding pad strips disposed inside is placed horizontally on the inclined support structure, and the two second side plates of the diamond-shaped steel pipe column are both in a vertical state, so that an inclined electroslag welding pool cavity is formed on the outer side of the other pair of oppositely disposed side edges of the horizontal inner partition, and the electroslag pool cavity and the openings on the two first side plates that are disposed through the electroslag pool cavity together form a through pool cavity. The cross-section of the through pool cavity is a parallelogram, and the upper size is slightly larger than the lower size, and the size does not exceed the requirements of the welding specification.

[0054] Step S3, electroslag welding arc-starting blocks are respectively provided in the two corresponding through-molten-pool cavities below the first side plate located at the bottom, and the electroslag welding arc-starting blocks are connected to the through-molten-pool cavities, and a jack is provided at the bottom of the electroslag welding arc-extinguishing block to tighten the electroslag welding arc-starting block to the first side plate located at the bottom, and ensure that the spherical groove of the electroslag welding arc-starting block is located at the center of the through-molten-pool cavity, and electroslag welding arc-extinguishing blocks are provided in the two corresponding through-molten-pool cavities above the first side plate located at the top, and the electroslag welding arc-extinguishing blocks are connected to the through-molten-pool cavities (the position of the electroslag welding arc-extinguishing block corresponds to the electroslag welding arc-starting block).

[0055] Step S4, insert a tubular welding rod in each through-molten pool cavity (the tubular welding rod is obliquely inserted into the through-molten pool cavity), the tubular welding rod can meet the welding requirements of the inclined position; and the tubular welding rod is located at the diagonal center of the through-molten pool cavity.

[0056] In order to ensure that the tubular welding rod is always located at the diagonal center of the molten pool cavity, a plurality of cross-shaped limit welding wires wound with welding wires may be arranged at intervals on the outside of the tubular welding rod; or a plurality of straight-line limit welding wires wound with welding wires may be arranged at intervals on the outside of the tubular welding rod, and two upper and lower adjacent straight-line limit welding wires are staggered to form a cross. The ends of the limit welding wires should touch the four corners of the through-molten pool cavity with a parallelogram cross section, and multiple limit welding wires are arranged according to the depth of the through-molten pool cavity. The limit welding wires should be of the same model as the tubular welding rod, and the layout of the limit welding wires should be based on the principle of not blocking the addition of flux.

[0057] Step S5, the electroslag welding wires of the two electroslag welding wire feeders are tiltedly arranged in the two tubular welding rods, and the tilt angle of the electroslag welding wires is the same as the tilt angle of the tubular welding rods;

[0058] Step S6, using two electroslag welding wire feeders to simultaneously perform a nozzle electroslag welding process at two through-molten pool cavities to weld and fix the horizontal inner partition plate and the two second side plates together;

[0059] Step S7, removing the electroslag welding arc extinguishing block and the electroslag welding arc starting block.

[0060] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0061] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A welding structure of a horizontal inner partition of a diamond-shaped steel pipe column, characterized in that: include: Inclined support structure, diamond-shaped steel pipe column, horizontal inner partition, electroslag welding arc starting block, electroslag welding arc extinguishing block and tubular welding rod; The diamond-shaped steel pipe column is assembled by two oppositely arranged first side plates and two oppositely arranged second side plates, and two oppositely arranged two sides of the horizontal inner partition are welded together with the two first side plates; The inclined support structure includes a plurality of inclined support members arranged at intervals, the diamond-shaped steel pipe column is transversely arranged on the inclined support structure, and the two second side plates are in a vertical state, and welding pad strips are fixedly arranged on both sides of each of the other two oppositely arranged side edges of the horizontal inner partition so as to form an electroslag welding pool cavity with a parallelogram cross-section on both sides of the horizontal inner partition, the electroslag welding pool cavity is surrounded by the side edges of the horizontal inner partition, the two welding pad strips and the second side plate, and the two first side plates are provided with openings corresponding to the electroslag welding pool cavity, the size of the openings corresponds to the electroslag welding pool cavity, and each of the electroslag welding pool cavities is connected with two corresponding openings above and below it to form a through pool cavity with a parallelogram cross-section; The two through-molten-pool cavities below the first side plate at the bottom are respectively provided with electroslag welding arc-starting blocks, and the two through-molten-pool cavities above the first side plate at the top are respectively provided with electroslag welding arc-extinguishing blocks; A tubular welding rod is inserted into each of the through-molten pool cavities, and one end of the tubular welding rod passes through the electroslag welding arc extinguishing block and the through-molten pool cavity in sequence and is arranged in the electroslag welding arc starting block, the other end of the tubular welding rod is arranged on the electroslag welding arc extinguishing block, and a limiting welding wire is arranged on the tubular welding rod so that the tubular welding rod is located at the diagonal center of the through-molten pool cavity.

2. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: Each of the inclined support members includes an H-shaped steel and a pad located on the top of the H-shaped steel. The top of the pad has an inclined surface, and the inclination angle of the inclined surface is the same as the inclination angle of the first side plate.

3. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: The upper surface of the electroslag welding arc-starting block is an inclined surface, and the lower surface is a plane, and the inclination angle of the upper surface of the electroslag welding arc-starting block is the same as the inclination angle of the first side plate. A jack is provided at the bottom of the electroslag welding arc-starting block to enable the upper surface of the electroslag welding arc-starting block to be tightly attached to the lower surface of the first side plate located below through the jack.

4. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 3 is characterized in that: A pad is arranged between the jack and the electroslag welding arc starting block.

5. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: The upper surface and the lower surface of the electroslag welding arc extinguishing block are both inclined surfaces, and the inclination angles of the upper surface and the lower surface of the electroslag welding arc extinguishing block are the same as the inclination angle of the first side plate.

6. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: The electroslag welding arc-starting block and the electroslag welding arc-extinguishing block are both made of copper, and the arc-starting block and the arc-extinguishing block are both spliced ​​together by two copper blocks.

7. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: A plurality of cross-limiting welding wires are arranged at intervals on the outer side of the tubular welding rod.

8. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: A plurality of straight-line limiting welding wires are arranged at intervals on the outer side of the tubular welding rod, and two straight-line limiting welding wires adjacent to each other are arranged in a staggered manner to form a cross.

9. The welding structure of the horizontal inner partition of the diamond-shaped steel pipe column according to claim 1 is characterized in that: The limiting welding wire and the tubular welding rod are made of the same material.

10. A method for welding a diamond-shaped steel pipe column horizontal inner partition, based on the welding structure of the diamond-shaped steel pipe column horizontal inner partition according to any one of claims 1 to 9, characterized in that: The welding method comprises the following steps: Installing the inclined support structure in the welding construction area; Assembling the diamond-shaped steel pipe columns, and arranging horizontal inner partitions and welded pad strips inside the diamond-shaped steel pipe columns, and arranging the diamond-shaped steel pipe columns transversely on the inclined support structure, and the two second sides of the diamond-shaped steel pipe columns are both in a vertical state; An electroslag welding arc-starting block is respectively provided below the first side plate at the bottom and corresponds to the two through-molten-pool cavities, and the electroslag welding arc-starting block is communicated with the through-molten-pool cavity, and an electroslag welding arc-extinguishing block is provided above the first side plate at the top and corresponds to the two through-molten-pool cavities, and the electroslag welding arc-extinguishing block is communicated with the through-molten-pool cavity; Inserting a tubular welding rod obliquely into each of the through-molten-pool cavities, and making the tubular welding rod located at the diagonal center of the through-molten-pool cavity; The electroslag welding wires of the two electroslag welding wire feeders are respectively tiltedly arranged in the two tubular welding rods, and the tilt angle of the electroslag welding wire is the same as the tilt angle of the tubular welding rod; Using the two electroslag welding wire feeders to simultaneously perform a nozzle electroslag welding process at the two through-molten pool cavities to weld and fix the horizontal inner partition plate and the two second side plates together; Remove the electroslag welding arc extinguishing block and the electroslag welding arc starting block.

Images