Multi-steel column head manufacturing method and multi-steel column head

Abstract

The application discloses a manufacturing method and a column head of a multi-ledge steel column, and the manufacturing method comprises the following steps: S1, manufacturing a round pipe column; S2, manufacturing a top cover unit and a pipe side unit; S3, sequentially assembling and welding a plurality of pipe side units with the round pipe column, the plurality of pipe side units are distributed at intervals around the round pipe column and second inner partition plates and second process partition plates are arranged between the pipe side units; S4, respectively assembling and welding the top cover unit with the round pipe column and the pipe side unit; S5, welding and arranging third inner partition plates and third process partition plates in the round pipe column; S6, arranging second side plates between every two adjacent pipe side units to form corresponding prisms by combined welding; S7, manufacturing a ledge unit, the upper wing plate of the ledge unit is not welded first, and the remaining components are welded; and S8, sequentially assembling and welding a plurality of ledge units with the prisms, the box-shaped body of the ledge unit is welded first, and then the upper wing plate is assembled and welded. By decomposing the component into a multi-unit combined structure form, the component assembly process design is optimized, the assembly and welding of the ledge unit are facilitated, and the component is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of steel structure technology, and in particular to a method for manufacturing a multi-bracket steel column head and the multi-bracket steel column head. Background Technology

[0002] With the rapid development of high-speed railways and passenger dedicated lines, newly constructed railway station buildings are becoming increasingly large-scale and multi-dimensional. Existing station buildings typically use reinforced concrete frame structures for the lower part, and the roof steel structure adopts a system of supporting steel columns and two-way planar trusses. Among them, the supporting columns, as the main components for transferring the load of the roof structure, are characterized by large cross-sections, high-quality materials, and multi-cavity structures.

[0003] The steel column capital, as the upper structure of the supporting column, is a crucial node for transmitting forces from the roof structure to the supporting column. Multiple box-shaped brackets surround the outer part of the column capital, connecting the roof system and the supporting column system. The overall structure of the steel column capital is quite complex. Existing manufacturing methods typically involve directly welding individual plates onto a circular tube column, then assembling the box-shaped brackets one by one. This process is difficult to control in terms of welding forming and cross-section, and welding errors accumulate as multiple plates are welded, leading to severe deformation of the circular tube column. Furthermore, the welding angles of the brackets are difficult to guarantee. Therefore, the key and challenging aspects of manufacturing multi-bracket steel column capitals are determining the appropriate assembly process, welding structure, and welding methods. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a method for manufacturing a multi-bracket steel column head, which optimizes the component assembly process design by decomposing the component into a multi-unit combined structural form, and facilitates the assembly and welding of the bracket units by setting up combined prisms, thereby improving the component assembly efficiency and making it easier to use.

[0005] The present invention also proposes a method for manufacturing a multi-bracket steel column head.

[0006] The method for manufacturing a multi-bracket steel column capital according to a first aspect embodiment of the present invention includes the following steps:

[0007] S1: Construct a cylindrical tube;

[0008] S2: Fabricate the top cover unit and the pipe side unit. The top cover unit includes a cover plate and a partition group. The partition group is welded to the lower side of the cover plate. There are at least three pipe side units. Each pipe side unit includes a side rib plate, a first side panel, a first inner partition plate, and a first process partition plate. First, the first inner partition plate and the first process partition plate are welded to the preset positions of the first side panel respectively. The first inner partition plate and the first process partition plate are distributed at intervals in the vertical direction, and the first inner partition plate is located above the first process partition plate. Then, two side rib plates are welded to both sides of the first side panel respectively. The side rib plates are inclined at a preset angle relative to the first side panel. The side rib plates are welded to the first inner partition plate and the first process partition plate respectively. Each pipe side unit is assembled and welded separately.

[0009] S3: The multiple pipe-side units are sequentially welded to the circular pipe column. The multiple pipe-side units are distributed around the circular pipe column at intervals. A second inner partition and a second process partition are set between each two adjacent pipe-side units. The second inner partition and the second process partition are welded to the circular pipe column and the adjacent side rib plate, respectively. The second inner partition and the second process partition are distributed at intervals in the vertical direction, and the second inner partition is located above the second process partition.

[0010] S4: Place the top cover unit on the upper side of the cylindrical column, extend the partition assembly into the interior of the cylindrical column, and weld the top cover unit to the cylindrical column and the pipe side unit respectively.

[0011] S5: Set a third inner partition and a third process partition. The third inner partition and the third process partition are installed into the interior of the circular tube column from the bottom side and welded together.

[0012] S6: A second side panel is provided between each two adjacent pipe-side units, so that the pipe-side units and the second side panel surround the outside of the circular pipe column to form a corresponding prism. The second side panel is welded to the cover plate, the adjacent side rib plate and the corresponding second process partition plate respectively. The second side panel is not welded to the corresponding second inner partition plate.

[0013] S7: Fabricate multiple bracket units. The number of bracket units corresponds to the number of circumferential surfaces of the prism obtained in step S6. Each bracket unit includes an upper wing plate, a lower wing plate, a web plate, an end cap plate, and a bracket rib plate. There are two web plates located on both sides of the end cap plate. The bracket rib plate is located between the two web plates. The lower wing plate is located on the lower side of the two web plates. The end cap plate, the lower wing plate, and the two web plates form a box-shaped body. The box-shaped body has a bracket cavity with openings on the sides and top. The bracket rib plate is located in the bracket cavity. The upper wing plate covers the upper part of the bracket cavity. The lower wing plate, web plate, end cap plate, and bracket rib plate are first welded and fixed together. The upper wing plate is not welded for the time being. Each bracket unit is assembled and welded separately.

[0014] S8: Weld multiple bracket units to the prism obtained in step S6 in sequence. Multiple bracket units are distributed around the prism and are respectively set on multiple sides of the prism. The side openings of the bracket cavity of the bracket unit are connected to the first side panel or the second side panel. First, weld and fix the lower wing plate, web plate, and bracket rib plate of the bracket unit to the prism. Then, assemble the upper wing plate of the bracket unit with the corresponding box body and weld the upper wing plate to the box body and the prism.

[0015] The method for manufacturing the multi-bracket steel column head according to the embodiments of the present invention has at least the following beneficial effects: by decomposing the component into a multi-unit combined structure, first assembling each unit, and then assembling each unit in sequence, the component assembly process design is optimized. Furthermore, by setting tube-side units, second side panels, etc., to cooperate with the round tube column to assemble a prism, the structural design is optimized, which helps to ensure the assembly angle of the bracket unit and facilitates its welding, reduces the difficulty of welding and forming, helps to improve the component assembly efficiency, effectively shortens the manufacturing period, and facilitates use.

[0016] According to some embodiments of the present invention, in step S1, when making the circular tube column, metal plates are cut, the metal plates are pressed into shape and rolled into the corresponding arc shape, and the joints of the metal plates are welded and fixed by root cleaning welding or backing welding, and the welds are all fully penetrated to obtain the circular tube column. Then, the unassembled tube side units are marked and positioned on the circular tube column.

[0017] According to some embodiments of the present invention, in step S2, the partition assembly includes a first inner tube partition and a second inner tube partition arranged vertically. Two second inner tube partitions are provided and welded to both sides of the first inner tube partition respectively, so that the first inner tube partition and the second inner tube partition are combined into a "+" shape. The partition assembly is first welded and fixed and then assembled and welded with the cover plate. The welding of the top cover unit is carried out by root cleaning welding. In step S4, the welding bevel of the top of the circular tube column is opened on the inner side of the tube and is partially welded to the cover plate along the inner circumference of the circular tube column by a partial penetration welding method. The partition assembly is welded to the inner wall of the circular tube column by a backing welding method.

[0018] According to some embodiments of the present invention, in step S2, the weld between the first side panel and the side rib is first welded by gas shielded welding. After the second side panel is welded in step S6, the weld between the first side panel and the side rib is filled by submerged arc welding. In step S2, the first inner partition and the first process partition are welded to the first side panel and the side rib respectively by root cleaning welding. The pipe side unit also includes a vertically arranged first vertical partition, which is located on the upper side of the pipe side unit. In step S3, the first vertical partition is welded and fixed to the first side panel and the round pipe column respectively. In step S4, the first vertical partition is pressed tightly against the cover plate without welding.

[0019] According to some embodiments of the present invention, a second vertical partition is provided between every two adjacent pipe-side units. The second vertical partition is arranged vertically. In step S5, before welding the third inner partition and the third process partition, the second vertical partition is first welded and fixed to the round pipe column and the cover plate respectively. In step S6, the second vertical partition is pressed against the corresponding second side panel without welding.

[0020] According to some embodiments of the present invention, in step S6, the weld between the second side panel and the adjacent side rib is provided with a tear-resistant bevel and is welded using a backing weld. The welding between the second side panel and the adjacent side rib adopts measures such as preheating treatment before welding, controlling the interpass temperature of the weld during welding within a preset temperature range, and heat preservation treatment after welding.

[0021] According to some embodiments of the present invention, in steps S7 and S8, the corbel rib plate is welded to the web plate, the end cap plate, and the prism by means of backing welding. In step S8, after the corbel rib plate and the prism are welded, weld flaw detection is performed. After the weld flaw detection is qualified, the upper wing plate of the corbel unit is assembled and welded. The welds between the upper wing plate, the lower wing plate, the web plate, and the end cap plate, as well as the welds between the corbel unit and the prism, are all welded by means of backing welding.

[0022] According to some embodiments of the present invention, in step S2, when fabricating the pipe-side unit, the lower edge of the first side panel is higher than the lower edge of the side rib. In step S6, the lower edge of the second side panel is higher than the lower edge of the adjacent side rib, so that hand holes are formed between the lower edge of the first side panel and the two adjacent side ribs, and between the lower edge of the second side panel and the two adjacent side ribs. The hand holes are used for welding between columns on site.

[0023] According to some embodiments of the present invention, after at least some of the steps in steps S1 to S8 are performed, the obtained structure is subjected to staged weld flaw detection, deformation detection and deformation correction. After the detection is qualified or the correction is completed, the subsequent processing steps are carried out.

[0024] The multi-bracket steel column capital according to the second aspect of the present invention is manufactured using the manufacturing method of the multi-bracket steel column capital according to the first aspect of the present invention.

[0025] The multi-bracket steel column head according to the embodiments of the present invention has at least the following beneficial effects: by adopting the above-mentioned manufacturing method of the multi-bracket steel column head, the structural stability of the multi-bracket steel column head is better, it is convenient for the bracket unit to transfer the load to the circular tube column, and the overall structural deformation is small and controllable, which facilitates its production and use.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the structure of the multi-bracket steel column head according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the column capital of a multi-bracket steel column;

[0030] Figure 3 for Figure 2 Schematic diagram of a medium prism;

[0031] Figure 4 for Figure 3 A schematic diagram of the exploded structure of a medium prism;

[0032] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of a medium prism;

[0033] Figure 6 for Figure 3 One of the partial structural diagrams of a medium prism;

[0034] Figure 7 for Figure 3 Partial structural schematic diagram of a medium prism (Part 2);

[0035] Figure 8 for Figure 3 Schematic diagram of the structure of the middle tube side unit;

[0036] Figure 9 for Figure 3 Schematic diagram of the structure of the top cover unit;

[0037] Figure 10 for Figure 1 A schematic diagram of the exploded structure of the corbel unit.

[0038] Figure label:

[0039] Prism 100, handhole 101, cylindrical tube 110, third inner partition 111, third process partition 112, top cover unit 120, cover plate 121, first inner tube partition 122, second inner tube partition 123, tube side unit 130, first side panel 131, first inner partition 132, first process partition 133, first vertical partition 134, side rib 135, second side panel 141, second inner partition 142, second process partition 143, second vertical partition 144;

[0040] The components include: a cow leg unit 200, a cow leg cavity 201, an upper wing plate 210, a lower wing plate 220, a belly plate 230, an end cap plate 240, and a cow leg rib plate 250. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that if directional descriptions are involved, such as up, down, etc., indicating directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings, it is only for the convenience of describing this invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0044] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0045] Reference Figures 1 to 10 A method for manufacturing a multi-bracket steel column capital, comprising the following steps:

[0046] S1: Construct a cylindrical tube 110;

[0047] S2: Fabricate top cover unit 120 and pipe side unit 130. Top cover unit 120 includes cover plate 121 and partition group. The partition group is welded to the lower side of cover plate 121. Pipe side unit 130 is provided with at least three. Pipe side unit 130 includes side rib plate 135, first side panel 131, first inner partition plate 132 and first process partition plate 133. First, the first inner partition plate 132 and the first process partition plate 133 are respectively welded to the preset position of the first side panel 131. The first inner partition plate 132 and the first process partition plate 133 are distributed at intervals in the vertical direction and the first inner partition plate 132 is located above the first process partition plate 133. Then, two side rib plates 135 are respectively welded to both sides of the first side panel 131. The side rib plates 135 are inclined at a preset angle relative to the first side panel 131. The side rib plates 135 are respectively welded to the first inner partition plate 132 and the first process partition plate 133. Each pipe side unit 130 is assembled and welded separately.

[0048] S3: The multiple pipe-side units 130 are sequentially welded to the circular pipe column 110. The multiple pipe-side units 130 are distributed around the circular pipe column 110 at intervals. A second inner partition 142 and a second process partition 143 are provided between each two adjacent pipe-side units 130. The second inner partition 142 and the second process partition 143 are respectively welded to the circular pipe column 110 and the adjacent side rib 135. The second inner partition 142 and the second process partition 143 are distributed at intervals in the vertical direction, and the second inner partition 142 is located above the second process partition 143.

[0049] S4: The top cover unit 120 is placed on the upper side of the circular tube column 110, the partition assembly extends into the interior of the circular tube column 110, and the top cover unit 120 is welded to the circular tube column 110 and the tube side unit 130 respectively.

[0050] S5: Set a third inner partition 111 and a third process partition 112. The third inner partition 111 and the third process partition 112 are installed into the interior of the circular tube column 110 from the lower side of the circular tube column 110 and welded.

[0051] S6: A second side panel 141 is provided between every two adjacent pipe-side units 130, so that the pipe-side unit 130 and the second side panel 141 surround the outside of the circular pipe column 110 to form a corresponding prism 100. The second side panel 141 is welded to the cover plate 121, the adjacent side rib plate 135 and the corresponding second process partition plate 143 respectively. The second side panel 141 is not welded to the corresponding second inner partition plate 142.

[0052] S7: Fabricate multiple corbel units 200. The number of corbel units 200 corresponds to the number of circumferential surfaces of the prism 100 obtained in step S6. Each corbel unit 200 includes an upper flange 210, a lower flange 220, a web 230, an end cap 240, and corbel ribs 250. Two webs 230 are provided and located on both sides of the end cap 240. The corbel ribs 250 are located between the two webs 230. The lower flange 220 is located between the two webs 230. On the lower side, the end sealing plate 240, the lower wing plate 220 and the two web plates 230 form a box-shaped body. The box-shaped body has a cow leg cavity 201 with openings on the side and top. The cow leg rib plate 250 is located in the cow leg cavity 201. The upper wing plate 210 covers the upper part of the cow leg cavity 201. The lower wing plate 220, the web plate 230, the end sealing plate 240 and the cow leg rib plate 250 are first welded and fixed together. The upper wing plate 210 is not welded for the time being. Each cow leg unit 200 is assembled and welded separately.

[0053] S8: The multiple bracket units 200 are sequentially welded to the prism 100 obtained in step S6. The multiple bracket units 200 are distributed around the prism 100 and respectively set on multiple sides of the prism 100. The side openings of the bracket cavity 201 of the bracket unit 200 are connected to the first side panel 131 or the second side panel 141. First, the lower wing plate 220, web plate 230, and bracket rib plate 250 of the bracket unit 200 are welded and fixed to the prism 100. Then, the upper wing plate 210 of the bracket unit 200 is assembled with the corresponding box body and the upper wing plate 210 is welded to the box body and the prism 100.

[0054] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the multi-bracket steel column capital includes a prism 100 and bracket units. In this embodiment, the prism 100 is an octagonal prism structure, and correspondingly, eight bracket units are provided. The eight bracket units are respectively arranged around the prism 100 on its eight peripheral surfaces, as shown in the figure. Figure 10 Each cow-leg unit includes components such as an upper wing plate 210, a lower wing plate 220, a web plate 230, an end cap 240, and a cow-leg rib plate 250, as shown in the reference. Figures 3 to 7 The prism 100 includes components such as a circular tube column 110, a top cover unit 120, a tube-side unit 130, a second side panel 141, a second inner partition 142, and a second process partition 143, as shown in the reference. Figure 9 The top cover unit 120 includes a cover plate 121 and a partition assembly, as shown in the figure. Figure 8 The pipe-side unit 130 includes components such as a first side panel 131, a first inner partition 132, a first process partition 133, a first vertical partition 134, and a side rib 135.

[0055] When performing step S1, refer to Figure 4 and Figure 7 Make a cylindrical tube 110 of the corresponding size.

[0056] When performing step S2, refer to Figure 9 The cover plate 121 has an octagonal structure, and the partition assembly is welded to the lower side of the middle part of the cover plate 121, as shown in the figure. Figure 7 and Figure 8 There are four pipe-side units 130. Each pipe-side unit 130 is assembled and welded separately. The first inner partition 132 and the first process partition 133 are first welded to the preset positions of the first side panel 131 respectively. The two are distributed at intervals in the vertical direction, and the first inner partition 132 is located above the first process partition 133. Then, two side ribs 135 are respectively set on both sides of the first side panel 131. The side ribs 135 are inclined at a preset angle relative to the first side panel 131. The side ribs 135 are welded to the first side panel 131, the first inner partition 132, and the first process partition 133 respectively.

[0057] When performing step S3, refer to Figure 7 Four pipe-side units 130 are evenly spaced around the circular pipe column 110. The side ribs 135 and the first process partition 133 of the pipe-side units 130 are welded to the circular pipe column 110 using backing welds. The first inner partition 132 is tightly but not welded to the circular pipe column 110. (Refer to...) Figure 6 A second inner partition 142 and a second process partition 143 are provided between each two adjacent pipe-side units 130. The second inner partition 142 and the second process partition 143 are distributed at intervals in the vertical direction, and the second inner partition 142 is located above the second process partition 143. The second inner partition 142 and the second process partition 143 are respectively welded to the circular pipe column 110 and the adjacent side rib plate 135. The welding method is root cleaning welding or backing welding.

[0058] When performing step S4, refer to Figure 4 , Figure 5 , Figure 6 and Figure 9 The top cover unit 120 is placed on the upper side of the cylindrical column 110, the partition assembly extends into the interior of the cylindrical column 110, the top cover unit 120 is welded to the cylindrical column 110, the first side panel 131, and the side rib 135 respectively, and the partition assembly is welded to the inner wall of the cylindrical column 110.

[0059] When performing step S5, refer to Figure 4 and Figure 5The third inner partition 111 and the third process partition 112 are both circular in shape and adapted to the inner wall of the circular tube column 110. First, the third inner partition 111 is installed into the interior of the circular tube column 110 from the lower side and welded. Then, the third process partition 112 is installed into the interior of the circular tube column 110 from the lower side and welded. The third inner partition 111 and the third process partition 112 are arranged at intervals. The welding of the third inner partition 111 and the third process partition 112 is carried out by backing welding. The welding bevel faces the bottom side of the circular tube column 110.

[0060] When performing step S6, refer to Figure 3 , Figure 4 and Figure 6 A second side panel 141 is provided between each two adjacent pipe-side units 130. The second side panel 141, the second inner partition 142, and the second process partition 143 constitute an inclined side unit. There are four inclined side units. The four inclined side units and the four pipe-side units 130 are alternately distributed around the circular pipe column 110 and surround the outside of the circular pipe column 110 to form a corresponding prism 100. The second side panel 141 of the inclined side unit is welded to the cover plate 121, the adjacent side rib plate 135, and the corresponding second process partition 143, respectively. The second side panel 141 of the inclined side unit is not welded to the corresponding second inner partition 142.

[0061] When performing step S7, refer to Figure 1 and Figure 2 Eight bracket units 200 need to be fabricated. Each bracket unit 200 is assembled and welded separately. When fabricating the bracket unit 200, refer to... Figure 10 First, place a lower wing plate 220, two web plates 230, an end cap 240, and a corbel rib 250... Figure 10 The two web plates 230 are respectively located on both sides of the end cap 240, the corbel rib 250 is located between the two web plates 230, and the lower wing plate 220 is located on the lower side of the two web plates 230. The welding sequence is not limited, and the welding method can be selected according to the welding situation, such as root cleaning welding or backing welding, so that the end cap 240, the lower wing plate 220 and the two web plates 230 form a box-shaped body. The box-shaped body has corbel cavities 201 with side and top openings. The corbel rib 250 is located in the corbel cavity 201. The upper wing plate 210 is not welded first.

[0062] When performing step S8, refer to Figure 1 and Figure 2 Eight bracket units 200 are distributed around the prism 100 obtained in step S6 and respectively set on the eight sides of the prism 100. The eight bracket units 200 are then sequentially welded to the prism 100. When assembling and welding each bracket unit 200, refer to... Figure 1 , Figure 2 and Figure 10 The side opening of the bracket cavity 201 of the bracket unit 200 is aligned with the first side panel 131 or the second side panel 141. First, the lower wing plate 220, web plate 230, and bracket rib plate 250 of the bracket unit 200 are welded and fixed to the prism 100. Then, the upper wing plate 210 is placed on top of the bracket cavity 201 of the corresponding box-shaped body. The four edges of the upper wing plate 210 are welded to the box-shaped body and the prism 100 respectively. After the bracket units 200 are welded, the following is obtained: Figure 1 The multi-bracket steel column capital shown.

[0063] By decomposing the components into multi-unit combined structures, assembling each unit first, and then assembling each unit in sequence, the component assembly process design is optimized, which helps to improve the component assembly efficiency and effectively shorten the manufacturing period. Furthermore, by setting the tube side unit 130, the second side panel 141, etc., to cooperate with the circular tube column 110 to assemble the prism 100, the structural design is optimized, which helps to ensure the assembly angle of the bracket unit 200 and facilitates its welding, reducing the difficulty of welding. The bracket unit 200 adopts the assembly and welding design of first assembling the box-shaped body and then installing the wing plate 210, which allows the bracket rib plate 250 inside the bracket unit 200 to be welded to the prism 100, improving the connection structure strength of the bracket unit 200, making the structure of the resulting multi-bracket steel column head more stable, and facilitating the transfer of load from the bracket unit 200 to the circular tube column 110, making it easy to use.

[0064] Furthermore, in step S1, when making the circular tube column 110, metal plates are cut and pressed into shape and rolled into the corresponding arc shape. The joints of the metal plates are welded and fixed by root cleaning welding or backing welding, and the welds are all fully penetrated to obtain the circular tube column 110. Then, the unassembled tube side unit 130 is marked and positioned on the circular tube column 110.

[0065] Understandably, for larger steel column heads, the dimensions of the circular tube column 110 are also relatively large. Metal sheets can be cut and gradually pressed into shape using a hydraulic press and rolled into corresponding arc shapes using a tube rolling machine. The joints of the arc-shaped sheets are then welded. Some sheets can be welded using a process of manual gas-shielded welding followed by submerged arc welding. Other sheets can be welded using a method of internal filling welding followed by root cleaning welding on the outside of the weld. After the circular tube column 110 is produced, the unassembled tube-side units 130 are marked and positioned on it. This can be done by using a chalk line or drawing to facilitate the subsequent assembly and positioning of the tube-side units 130. In practical applications, depending on manufacturing needs, the circular tube column 110 can also be produced by cutting tubular profiles or by rolling and welding single sheets into a cylindrical shape. The specific welding method between the sheets that make up the circular tube column 110 can be set according to the actual welding situation.

[0066] Further, in step S2, the partition assembly includes a first inner tube partition 122 and a second inner tube partition 123 arranged vertically. There are two second inner tube partitions 123, which are respectively welded to both sides of the first inner tube partition 122, so that the first inner tube partition 122 and the second inner tube partition 123 are combined into a "+" shape. The partition assembly is first welded and fixed, and then assembled and welded to the cover plate 121. The welding of the top cover unit 120 is carried out by root cleaning welding. In step S4, the top welding bevel of the round tube column 110 is opened on the inner side of the tube and is partially welded to the cover plate 121 along the inner circumference of the round tube column 110 by partial penetration welding. The partition assembly is welded to the inner wall of the round tube column 110 by backing welding.

[0067] Understandably, such as Figure 9 As shown, the partition assembly includes a vertically arranged first inner tube partition 122 and a second inner tube partition 123. When fabricating the top cover unit 120, the two second inner tube partitions 123 are first welded to both sides of the first inner tube partition 122 to form a cross-shaped structure. Then, the partition assembly is welded to the lower side of the cover plate 121. All welding in the top cover unit 120 is done using a root-cleaning welding method, resulting in high weld strength and facilitating the welding fabrication of the top cover unit 120. In step S4, refer to... Figure 5 , Figure 6 , Figure 7 and Figure 9The top cover unit 120 is installed on the upper side of the circular tube column 110 and then welded. The welding bevel at the top of the circular tube column 110 is opened on the inner side of the tube and is partially welded to the cover plate 121 along the inner circumference of the circular tube column 110 using a partial penetration method. The partition assembly is welded to the inner wall of the circular tube column 110 using a backing weld, and the weld is required to be of first-level penetration. This helps to ensure the welding between the upper outer side of the circular tube column 110 and other plates, and ensures the reliability of force transmission between the bracket unit 200 and the circular tube column 110. In actual applications, the specific structure of the partition assembly can be set according to the actual needs of use.

[0068] Further, in step S2, the weld between the first side panel 131 and the side rib 135 is first welded by gas shielded welding. After the second side panel 141 is welded in step S6, the weld between the first side panel 131 and the side rib 135 is filled by submerged arc welding. In step S2, the first inner partition 132 and the first process partition 133 are welded to the first side panel 131 and the side rib 135 respectively by root cleaning welding. The pipe side unit 130 also includes a vertically arranged first vertical partition 134, which is located on the upper side of the pipe side unit 130. In step S3, the first vertical partition 134 is welded and fixed to the first side panel 131 and the round pipe column 110 respectively. In step S4, the first vertical partition 134 is pressed tightly against the cover plate 121 without welding.

[0069] Understandably, such as Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, when fabricating the pipe-side unit 130 in step S2, the weld between the first side panel 131 and the side rib 135 is first welded by gas shielded welding. The first inner partition 132 and the first process partition 133 are welded to the first side panel 131 and the side rib 135 respectively by root cleaning welding. After the second side panel 141 is welded in step S6, the component as a whole forms a large rigidity and has a strong anti-deformation ability. Then, the weld between the first side panel 131 and the side rib 135 of the pipe-side unit 130 is filled by submerged arc welding, thereby ensuring welding efficiency and weld appearance formation effect. The pipe-side unit 130 also includes a vertically arranged first vertical partition 134, located on the upper side of the pipe-side unit 130. The first vertical partition 134 can be welded to the first side panel 131 in step S2, and then welded to the circular pipe column 110 in step S3. Alternatively, the first vertical partition 134 can be left unwelded in step S2, and then welded to the circular pipe column 110 in step S3, followed by welding to the first side panel 131. Depending on the welding sequence, the welding method can be either backing welding or root cleaning welding, which is not limited here. By setting the first vertical partition 134, it can play a certain role in force transmission and structural reinforcement, which is beneficial for the corbel unit 200 connected to the pipe-side unit 130 to transfer the load to the circular pipe column 110, thereby improving the structural strength and the reliability of load transmission.

[0070] Furthermore, a second vertical partition 144 is provided between every two adjacent pipe-side units 130. The second vertical partition 144 is arranged vertically. In step S5, before welding the third inner partition 111 and the third process partition 112, the second vertical partition 144 is first welded and fixed to the round pipe column 110 and the cover plate 121 respectively. In step S6, the second vertical partition 144 is pressed tightly against the corresponding second side panel 141 without welding.

[0071] Understandably, such as Figure 6 As shown, by setting the second vertical partition 144, the second vertical partition 144 can play a certain role in force transmission and structural reinforcement, which is conducive to the corbel unit 200 connected with the inclined side unit to transfer the load to the circular tube column 110, thereby improving the structural strength and the reliability of load transmission. During welding, in step S5, before welding the third inner partition 111 and the third process partition 112, the second vertical partition 144 is first welded and fixed to the circular tube column 110 and the cover plate 121 respectively. The outer plate is welded before the lower pipe opening of the circular tube column 110 is closed, which is conducive to the release of heat from the inside of the pipe. Then, in step S6, the second vertical partition 144 is pressed tightly against the corresponding second side panel 141 without welding, which facilitates the installation and welding of the second vertical partition 144.

[0072] Furthermore, in step S6, the weld between the second side panel 141 and the adjacent side rib 135 is provided with a tear-resistant bevel and welded using a backing weld. The welding between the second side panel 141 and the adjacent side rib 135 adopts measures such as preheating treatment before welding, controlling the interpass temperature of the weld during welding within a preset temperature range, and heat preservation treatment after welding.

[0073] Understandably, such as Figure 3 , Figure 4 and Figure 6 As shown, the bevel angle of the tear-resistant bevel is controlled between 30° and 35°. The second side panel 141 is welded to the adjacent side rib 135 using a backing weld. By setting the tear-resistant bevel, the possibility of welding deformation and welding quality problems is reduced. Before welding the plates of the inclined side unit, ultrasonic testing equipment can be used to inspect the welds between the pipe side unit 130 and the circular pipe column 110 and the top cover unit 120. The deformation during the assembly welding process between the pipe side unit 130 and the circular pipe column 110 and the top cover unit 120 is measured using equipment such as steel rulers, laser levels, and leveling instruments. At the same time, fire straightening is used to process the deformation to avoid the accumulation of process deviations. The inclined plate unit is then assembled after the inspection is qualified or the straightening is completed to reduce the accumulation of errors. The welding between the second side panel 141 and the adjacent side rib 135 adopts measures such as preheating treatment before welding, controlling the interpass temperature of the weld within the preset temperature range during welding, and heat preservation treatment after welding to ensure welding quality.

[0074] Furthermore, in steps S7 and S8, the corbel rib 250 is welded to the web 230, the end cap 240, and the prism 100 using backing welds. In step S8, after the corbel rib 250 and the prism 100 are welded, weld flaw detection is performed. After the weld flaw detection is qualified, the upper flange 210 of the corbel unit 200 is assembled and welded. The welds between the upper flange 210, lower flange 220, web 230, and end cap 240, as well as the welds between the corbel unit 200 and the prism 100, are all welded using backing welds. This method helps to ensure the welding quality and structural strength of the corbel unit 200. In this embodiment, except for the weld between the circular tube column 110 and the cover plate 121 which requires partial penetration, all other welds require full penetration (Level 1) to ensure the structural strength of the resulting steel column head.

[0075] Further, in step S2, when fabricating the pipe-side unit 130, the lower edge of the first side panel 131 is higher than the lower edge of the side rib 135. In step S6, the lower edge of the second side panel 141 is higher than the lower edge of the adjacent side rib 135, so that hand holes 101 are formed between the lower edge of the first side panel 131 and the two adjacent side ribs 135, and between the lower edge of the second side panel 141 and the two adjacent side ribs 135. The hand holes 101 are used for welding between columns on site. It is understood that, as Figure 3 and Figure 7 As shown, both the lower sides of the tube-side unit 130 and the inclined side unit have hand holes 101 formed in the above manner. By setting the hand holes 101, it is convenient to complete the docking of the round tube column 110, the docking of the "π"-shaped unit side plate, and the docking of the "π"-shaped unit and the inclined plate unit panel in the field. This solves the welding feasibility problem of complex nested structures and ensures full welding coverage of complex cavities from the inside to the outside.

[0076] Furthermore, after at least some of the steps in steps S1 to S8 are performed, the obtained structure is subjected to staged weld flaw detection, deformation detection and deformation correction. After the detection is qualified or the correction is completed, the subsequent processing steps are carried out.

[0077] Understandably, due to the complex composition of the components, the continuous welding of parts will increase the heat input of the welding, which may cause the local deformation of the components to exceed the specification requirements. Therefore, according to actual needs, staged weld flaw detection can be carried out after at least some steps, such as after the fabrication of each unit, after the welding between units, etc. By performing staged weld flaw detection, deformation detection and deformation correction on the fabricated structure, the subsequent processing steps can be carried out after the inspection is qualified or the correction is completed. This reduces the accumulation of errors, reduces the difficulty of subsequent processing, ensures the welding quality of the components, and makes the cross-sectional dimensions of the components controllable and with excellent precision.

[0078] The multi-bracket steel column capital according to a second aspect of the present invention is manufactured using the manufacturing method of the multi-bracket steel column capital according to the first aspect of the present invention described above.

[0079] According to the embodiments of the present invention, the multi-bracket steel column head, by adopting the above-described manufacturing method, has good structural stability, facilitates the transfer of load from the bracket unit 200 to the circular tube column 110, and the overall structural deformation is small and controllable, making it easy to produce and use.

[0080] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for manufacturing a multi-bracket steel column capital, characterized in that, Includes the following steps: S1: Construct a cylindrical tube; S2: Fabricate the top cover unit and the pipe side unit. The top cover unit includes a cover plate and a partition group. The partition group is welded to the lower side of the cover plate. There are at least three pipe side units. Each pipe side unit includes a side rib plate, a first side panel, a first inner partition plate, and a first process partition plate. First, the first inner partition plate and the first process partition plate are welded to the preset positions of the first side panel respectively. The first inner partition plate and the first process partition plate are distributed at intervals in the vertical direction, and the first inner partition plate is located above the first process partition plate. Then, two side rib plates are welded to both sides of the first side panel respectively. The side rib plates are inclined at a preset angle relative to the first side panel. The side rib plates are welded to the first inner partition plate and the first process partition plate respectively. Each pipe side unit is assembled and welded separately. S3: The multiple pipe-side units are sequentially welded to the circular pipe column. The multiple pipe-side units are distributed around the circular pipe column at intervals. A second inner partition and a second process partition are set between each two adjacent pipe-side units. The second inner partition and the second process partition are welded to the circular pipe column and the adjacent side rib plate, respectively. The second inner partition and the second process partition are distributed at intervals in the vertical direction, and the second inner partition is located above the second process partition. S4: Place the top cover unit on the upper side of the cylindrical column, extend the partition assembly into the interior of the cylindrical column, and weld the top cover unit to the cylindrical column and the pipe side unit respectively. S5: Set a third inner partition and a third process partition. The third inner partition and the third process partition are installed into the interior of the circular tube column from the bottom side and welded together. S6: A second side panel is provided between each two adjacent pipe-side units, so that the pipe-side units and the second side panel surround the outside of the circular pipe column to form a corresponding prism. The second side panel is welded to the cover plate, the adjacent side rib plate and the corresponding second process partition plate respectively. The second side panel is not welded to the corresponding second inner partition plate. S7: Fabricate multiple bracket units. The number of bracket units corresponds to the number of circumferential surfaces of the prism obtained in step S6. Each bracket unit includes an upper wing plate, a lower wing plate, a web plate, an end cap plate, and a bracket rib plate. There are two web plates located on both sides of the end cap plate. The bracket rib plate is located between the two web plates. The lower wing plate is located on the lower side of the two web plates. The end cap plate, the lower wing plate, and the two web plates form a box-shaped body. The box-shaped body has a bracket cavity with openings on the sides and top. The bracket rib plate is located in the bracket cavity. The upper wing plate covers the upper part of the bracket cavity. The lower wing plate, web plate, end cap plate, and bracket rib plate are first welded and fixed together. The upper wing plate is not welded for the time being. Each bracket unit is assembled and welded separately. S8: Weld multiple bracket units to the prism obtained in step S6 in sequence. Multiple bracket units are distributed around the prism and are respectively set on multiple sides of the prism. The side openings of the bracket cavity of the bracket unit are connected to the first side panel or the second side panel. First, weld and fix the lower wing plate, web plate, and bracket rib plate of the bracket unit to the prism. Then, assemble the upper wing plate of the bracket unit with the corresponding box body and weld the upper wing plate to the box body and the prism.

2. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In step S1, when making the circular tube column, metal plates are cut and pressed into shape and rolled into the corresponding arc shape. The joints of the metal plates are welded and fixed by root cleaning welding or backing welding, and the welds are all fully penetrated to make the circular tube column. Then, the unassembled tube side units are marked and positioned on the circular tube column.

3. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In step S2, the partition assembly includes a first inner tube partition and a second inner tube partition arranged vertically. There are two second inner tube partitions, which are respectively welded to both sides of the first inner tube partition, so that the first inner tube partition and the second inner tube partition are combined into a "+" shape. The partition assembly is first welded and fixed and then assembled and welded with the cover plate. The welding of the top cover unit is carried out by root cleaning welding. In step S4, the welding bevel of the top of the circular tube column is opened on the inner side of the tube and is partially welded to the cover plate along the inner circumference of the circular tube column by a partial penetration welding method. The partition assembly is welded to the inner wall of the circular tube column by a backing welding method.

4. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In step S2, the weld between the first side panel and the side rib is first welded by gas shielded welding. After the second side panel is welded in step S6, the weld between the first side panel and the side rib is filled by submerged arc welding. In step S2, the first inner partition and the first process partition are welded to the first side panel and the side rib respectively by root cleaning welding. The pipe side unit also includes a vertically arranged first vertical partition, which is located on the upper side of the pipe side unit. In step S3, the first vertical partition is welded and fixed to the first side panel and the round pipe column respectively. In step S4, the first vertical partition is pressed tightly against the cover plate without welding.

5. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, A second vertical partition is provided between each two adjacent pipe-side units. The second vertical partition is set vertically. In step S5, before welding the third inner partition and the third process partition, the second vertical partition is first welded and fixed to the round pipe column and the cover plate respectively. In step S6, the second vertical partition is pressed tightly against the corresponding second side panel without welding.

6. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In step S6, the weld between the second side panel and the adjacent side rib is made with a tear-resistant bevel and welded using a backing weld. The welding between the second side panel and the adjacent side rib adopts measures such as preheating before welding, controlling the interpass temperature of the weld during welding within a preset temperature range, and heat preservation treatment after welding.

7. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In steps S7 and S8, the corbel rib plate is welded to the web plate, end cap plate, and prism using a backing weld. In step S8, after the corbel rib plate and prism are welded, weld flaw detection is performed. After the weld flaw detection is qualified, the upper flange of the corbel unit is assembled and welded. The welds between the upper flange, lower flange, web plate, and end cap plate, as well as the welds between the corbel unit and the prism, are all welded using a backing weld.

8. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, In step S2, when manufacturing the tube-side unit, the lower edge of the first side panel is higher than the lower edge of the side rib. In step S6, the lower edge of the second side panel is higher than the lower edge of the adjacent side rib, so that hand holes are formed between the lower edge of the first side panel and the two adjacent side ribs, and between the lower edge of the second side panel and the two adjacent side ribs.

9. The method for manufacturing the multi-bracket steel column capital according to claim 1, characterized in that, After at least some of the steps in steps S1 to S8 are performed, the obtained structure is subjected to staged weld flaw detection, deformation detection and deformation correction. After the detection is qualified or the correction is completed, the subsequent processing steps are carried out.

10. A multi-bracket steel column capital, characterized in that, The column capital of the multi-bracket steel column is manufactured using the method described in any one of claims 1 to 9.

Images