CN116408564A - Welding method and composite column - Google Patents

Abstract

The invention discloses a welding method, which is used for welding a combined column. The combined column includes a plurality of column assemblies arranged in sequence along the vertical direction. The column assembly includes an inner column, an outer column and a rib plate, the outer column has a storage cavity, the inner column is arranged in the storage cavity, and the two ends of the rib are respectively connected to the inner wall of the outer column and the outer wall of the inner column; the welding method The method comprises the steps of: temporarily fixing the two adjacent column assemblies through a connecting plate; welding the inner columns of the two adjacent column assemblies, and then welding the inner columns of the two adjacent column assemblies Rib welding. The welding method of the invention can effectively solve the problem of butt connection of the combined columns in the construction site, and the welding quality of the combined columns is high.

Description

Welding method and composite column

technical field

The invention relates to the technical field of building construction, in particular to a welding method and a combined column.

Background technique

In related technologies, the composite column has the characteristics of large vertical bearing capacity and overall rigidity, good plastic deformation capacity and ductility, and excellent seismic performance. Wherein, for the existing combined column, because its structure is extremely complicated, and the size of the combined column is relatively large. Therefore, limited by the mode of transportation, it is often necessary to segment the composite columns before shipping them to the construction site, which requires a lot of manpower and equipment to connect the segmented composite columns on site. . However, when connecting the composite columns on site, due to the chaotic construction on site, the butt joint of the composite columns is difficult, resulting in poor weld quality of the composite columns.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a welding method, which can effectively solve the problem of butt jointing of composite columns at the construction site, and the welding quality of the composite columns is relatively high.

The invention also proposes a combined column.

The welding method according to the embodiment of the first aspect of the present invention is used for welding a combined column, the combined column includes a plurality of column assemblies, and the plurality of column assemblies are arranged in sequence along the vertical direction, and the column assemblies include inner columns, An outer column and a rib plate, the outer column has a storage cavity, the inner column is arranged in the storage cavity, and the two ends of the rib plate are respectively connected to the inner wall of the outer column and the outer wall of the inner column;

Described welding method comprises steps:

Temporarily fixing two adjacent column assemblies through a connecting plate;

The inner columns of the two adjacent column assemblies are welded, and then the ribs of the two adjacent column assemblies are welded.

The welding method according to the embodiment of the present invention has at least the following beneficial effects: After temporarily fixing two adjacent column assemblies through the connecting plate, the inner column in the column assembly is welded first, and then the rib plate in the column assembly is welded . Since two adjacent column components can be temporarily fixed, the difficulty of docking is reduced. And the welding sequence from the inside to the outside can be adopted, so that the quality of the weld can be higher. In this way, the welding method can effectively solve the problem of butt connection of the composite column at the construction site, and the welding quality of the composite column is relatively high.

According to the welding method of some embodiments of the present invention, after welding the ribs of the two adjacent column assemblies, the method further includes the step of: welding the adjacent two column assemblies The outer column is welded.

According to the welding method of some embodiments of the present invention, after the welding of the outer columns of the two adjacent column assemblies, the method further includes the step of: welding one side of the reinforcing plate on the adjacent The outer surfaces of the outer columns of the two of the column assemblies.

According to the welding method of some embodiments of the present invention, before the welding of the inner columns of the two adjacent column assemblies, the method further includes the step of opening a welding hole in the rib plate.

According to the welding method of some embodiments of the present invention, before the welding of the inner columns of the two adjacent column assemblies, the method further includes the step of: setting a backing plate on the back of the inner column .

According to the welding method of some embodiments of the present invention, before the welding of the ribs of the two adjacent column assemblies, the method further includes the step of: setting a pad on the back of the ribs plate.

According to the welding method of some embodiments of the present invention, lug plates are welded to the surface of the outer column, and the two connecting plates are respectively connected to two sides of the lug plates.

According to the welding method of some embodiments of the present invention, after the welding of the ribs of the two adjacent column assemblies, the method further includes the step of: cutting off the connecting plate.

The combined column according to the second aspect of the present invention includes:

A plurality of column assemblies, a plurality of column assemblies are arranged and connected in sequence along the vertical direction, the column assembly includes an inner column, an outer column and a rib plate, the outer column has a storage cavity, and the inner column is arranged on the In the storage cavity, both ends of the ribs are respectively connected to the inner wall of the outer column and the outer wall of the inner column;

A plurality of reinforcing plates, one side of the reinforcing plate is welded to the outer surfaces of two adjacent outer columns.

The combined column according to the embodiment of the present invention has at least the following beneficial effects: because the column assembly includes the inner column and the outer column, and the inner column and the outer column are connected through ribs. At the same time, the outer columns of two adjacent combined columns are connected by reinforcing plates. In this way, the composite column can not only meet the mechanical strength of the structure, but also reduce its own wall thickness and save the amount of steel.

According to the composite column in some embodiments of the present invention, there are multiple ribs, and the multiple ribs are circumferentially arranged around the center of the inner column.

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

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, wherein:

Fig. 1 is the flowchart of the welding method of some embodiments of the present invention;

Fig. 2 is a schematic diagram of the assembled column without removing the ear plate and the connecting plate in the welding method of some embodiments of the present invention;

Fig. 3 is a schematic diagram of another angle of Fig. 2;

Fig. 4 is a schematic diagram of a composite column according to some embodiments of the present invention.

Reference signs:

Combined column 10 , column assembly 100 , inner column 200 , outer column 300 , rib plate 400 , reinforcing plate 500 , lug plate 600 , and connection plate 700 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, several means more than one, and multiple means more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

In the description of the present invention, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples" is intended to mean that the embodiments are A specific feature, structure, material, or characteristic described by or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In related technologies, the composite column 10 has the characteristics of large vertical bearing capacity and overall rigidity, good plastic deformation capacity and ductility, and excellent seismic performance. Wherein, for the existing composite column 10, due to its extremely complicated structure, and the size of the composite column 10 is relatively large. Therefore, under the limitation of the transportation mode, it is often necessary to segment and segment the composite column 10 before shipping to the construction site, which results in a large amount of manpower and equipment to be spent on the site after the segmented composite column 10. On-site docking. However, when connecting the composite columns 10 on site, due to the chaos of the construction on site, it is difficult to connect the composite columns 10 , so that the weld seam quality of the composite columns 10 is poor. When the weld quality of the composite column 10 is poor, the strength of the composite column 10 is difficult to meet the strength requirement. For this reason, the application proposes a welding method.

The composite column 10 is generally formed by welding multiple column components 100 to each other. If the composite column 10 is processed in the factory and then transported to the construction site, it is not conducive to transportation to the construction site due to its large length and weight. Therefore, the combined column 10 is formed by connecting multiple sections of column components 100 , so as to facilitate transportation. The specific structure of the column assembly 100 in this application will be introduced below. Referring to FIGS. 2 and 3 , in some embodiments, the column assembly 100 includes an inner column 200 , an outer column 300 and a rib 400 . The outer column 300 has a storage cavity, the inner column 200 is disposed in the storage cavity, and the two ends of the rib 400 are respectively connected to the inner wall of the outer column 300 and the outer wall of the inner column 200 . Further, the combined column 10 includes a plurality of column assemblies 100, and the plurality of column assemblies 100 are arranged and connected in sequence along the vertical direction.

Continuing to introduce the welding method, please refer to FIG. 1 , in some embodiments, the welding method is used to weld the combined column 10 . The welding method includes the steps of:

S100, temporarily fix two adjacent column assemblies 100 through the connecting plate 700;

S200 , welding the inner columns 200 of two adjacent column assemblies 100 , and then welding the ribs 400 of the two adjacent column assemblies 100 .

Specifically, after the two adjacent column assemblies 100 are temporarily fixed by the connecting plate 700 , the inner column 200 in the column assembly 100 is welded first, and then the rib plate 400 in the column assembly 100 is welded. Since two adjacent column assemblies 100 can be temporarily fixed, the difficulty of docking is reduced. And the welding sequence from the inside to the outside can be adopted, so that the quality of the weld can be higher. In this way, the welding method can effectively solve the problem of butt joint of the composite column 10 at the construction site, and the welding quality of the composite column 10 is relatively high.

It should be noted that the structure of the existing column assembly 100 does not include the inner column 200 . In the existing column assembly 100, only the adjacent outer columns 300 need to be welded, so generally speaking, the welding sequence of the existing welding methods is to adopt the method of welding from the outside. That is, the outer column 300 is welded. Since the column assembly 100 in the present application has an inner column 200 and an outer column 300 , by welding from the inner column 200 first, the work efficiency can be improved, thereby saving certain labor costs.

Further, for the column assembly 100 , both the inner column 200 and the rib plate 400 are welded, so that the strength of two adjacent column assemblies 100 can be improved. The strength of the composite column 10 can also be further improved by welding the outer columns 300 of two adjacent column assemblies 100 . Therefore, in some embodiments, after welding the ribs 400 of the two adjacent column assemblies 100 , the welding method further includes a step of: welding the outer columns 300 of the two adjacent column assemblies 100 .

In order to further improve the strength of the combined column 10 , it is necessary to increase the connection strength at the joint of two adjacent column assemblies 100 . Therefore, not only the inner column 200 , the rib plate 400 and the outer column 300 need to be welded, but also the reinforcing plate 500 can be welded to the surfaces of two adjacent outer columns 300 to improve the strength of the combined column 10 . In some embodiments, after welding the outer columns 300 of two adjacent column assemblies 100, the welding method further includes the step of: welding one side of the reinforcement plate 500 to the outer columns of the two adjacent column assemblies 100 300's outer surface. Wherein, the reinforcing plate 500 may be made of metal, and the thickness of the reinforcing plate 500 may be between 4 mm and 10 mm.

It should be noted that the welding method mentioned above can adopt symmetrical welding, and by reducing the influence of welding stress on the installation accuracy of the composite column 10, and the welding sequence from the inside to the outside, it not only solves the on-site docking process of the composite column 10 difficult problems, but also improved the welding quality of the weld, and greatly improved the construction efficiency while reducing the construction cost.

Specifically, in order to improve the quality of the weld seam after welding, the combined column 10 can select the pre-heating temperature and pre-heating method before welding according to the local air temperature and steel plate thickness before welding, so as to keep warm and cool slowly after welding. The welding adopts multi-layer multi-pass welding, which can effectively avoid cracks or other defects in the weld caused by excessive welding stress.

Further, in some embodiments, before welding the inner columns 200 of two adjacent column assemblies 100 , the welding method further includes a step of opening welding holes for the ribs 400 . Specifically, a certain space can be reserved in the welding hole of the rib plate 400, so that it is convenient for the staff to weld the inner column 200, which is beneficial to improve work efficiency and reduce work difficulty.

Further, in some embodiments, before welding the inner columns 200 of two adjacent column assemblies 100 , the welding method further includes a step of: setting a backing plate on the back of the inner columns 200 . Specifically, after the backing plate is provided on the back of the inner column 200, the welding quality of two adjacent inner columns 200 can be improved.

In some embodiments, before welding the ribs 400 of two adjacent column assemblies 100 , the welding method further includes a step of: setting a backing plate on the back of the ribs 400 . Specifically, after the backing plate is provided on the back of the ribs 400, the welding quality of two adjacent ribs 400 can be improved.

Further, how the connecting plate 700 fixes two adjacent column assemblies 100 is explained. Please refer to FIG. 2 , in some embodiments, the lug plate 600 is welded on the surface of the outer column 300 , and two connection plates 700 are respectively connected to both sides of the lug plate 600 . The ear plate 600 can facilitate the staff to pull the column assembly 100 , and connect the ear plates 600 on adjacent column assemblies 100 through the connecting plate 700 , so that two adjacent column assemblies 100 can be fixed.

In some embodiments, after welding the ribs 400 of two adjacent column assemblies 100 , the welding method further includes a step of: cutting off the connecting plate 700 . Specifically, the lug plate 600 and the connecting plate 700 play the role of temporarily fixing the column assembly 100, and can be cut off after the reinforcement plate 500 of the outer column 300 is welded. Wherein, the cutting of the lug plate 600 and the connecting plate 700 can be performed by flame cutting or mechanical cutting. After the cutting is completed, the rough cutting surface can be polished to make it smooth, thereby improving the aesthetics of the combined column 10 .

Referring to FIG. 4 , in some embodiments, the composite column 10 includes: a plurality of column assemblies 100 and a plurality of reinforcing plates 500 . A plurality of column assemblies 100 are arranged and connected in sequence along the vertical direction. The column assembly 100 includes an inner column 200, an outer column 300 and a rib 400. The outer column 300 has a storage cavity, the inner column 200 is arranged in the storage cavity, and the rib 400 Both ends are respectively connected to the inner wall of the outer column 300 and the outer wall of the inner column 200 ; one side of the reinforcing plate 500 is welded to the outer surfaces of two adjacent outer columns 300 . Specifically, since the column assembly 100 includes the inner column 200 and the outer column 300 , and the inner column 200 and the outer column 300 are connected through the rib plate 400 . At the same time, the outer columns 300 of two adjacent combined columns 10 are connected through the reinforcing plate 500 . In this way, the combined column 10 can not only meet the structural stress strength, but also reduce its own wall thickness and save the amount of steel used.

Further, please refer to FIG. 4 , in some embodiments, there are multiple ribs 400 , and the multiple ribs 400 are circumferentially arranged around the center of the inner column 200 . Specifically, the rib plate 400 can reinforce the connection between the inner column 200 and the outer column 300 , thereby indirectly improving the strength of the column assembly 100 .

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge of those of ordinary skill in the art, various modifications can be made without departing from the spirit of the present invention. Variety. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

Claims (10)

1. The welding method is characterized by comprising the steps of welding a combined column, wherein the combined column comprises a plurality of column components, the column components are sequentially arranged along the vertical direction, the column components comprise an inner column, an outer column and a rib plate, the outer column is provided with a storage cavity, the inner column is arranged in the storage cavity, and two ends of the rib plate are respectively connected with the inner wall of the outer column and the outer wall of the inner column;

the welding method comprises the following steps:

temporarily fixing two adjacent column assemblies through a connecting plate;

and welding the inner columns of the two adjacent column assemblies, and then welding the rib plates of the two adjacent column assemblies.

2. The welding method according to claim 1, wherein after welding the ribs of the two further pairs of adjacent column assemblies, the method further comprises the steps of: and welding the outer columns of two adjacent column assemblies.

3. The welding method of claim 2, wherein after the outer studs of the pair of adjacent two stud assemblies are welded, the method further comprises the steps of: and welding one side of the reinforcing plate on the outer surfaces of the outer columns of the two adjacent column assemblies.

4. The welding method of claim 1, wherein prior to welding the inner studs of the pair of adjacent two of the stud assemblies, the method further comprises the steps of: and forming a welding hole on the rib plate.

5. The welding method of claim 1, wherein prior to welding the inner studs of the pair of adjacent two of the stud assemblies, the method further comprises the steps of: and a liner plate is arranged on the back surface of the inner column.

6. The welding method according to claim 1, wherein prior to welding said ribs of said paired adjacent two of said column assemblies, said method further comprises the steps of: and a lining plate is arranged on the back surface of the rib plate.

7. The welding method according to claim 1, wherein an ear plate is welded to the surface of the outer column, and two of the connection plates are connected to both sides of the ear plate, respectively.

8. The welding method according to claim 1, wherein after welding the ribs of the two further pairs of adjacent column assemblies, the method further comprises the steps of: cutting off the connecting plate.

9. A composite column, comprising:

the column assemblies are sequentially arranged and connected in the vertical direction, each column assembly comprises an inner column, an outer column and a rib plate, each outer column is provided with a storage cavity, each inner column is arranged in each storage cavity, and two ends of each rib plate are respectively connected with the inner wall of each outer column and the outer wall of each inner column;

and one side of each reinforcing plate is welded to the outer surfaces of two adjacent outer columns.

10. The composite post of claim 9, wherein the rib has a plurality of ribs, the plurality of ribs being circumferentially disposed about a center of the inner post.

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