Welding method and composite column

Abstract

The application discloses a welding method for welding a combined column, which comprises a plurality of column assemblies arranged in sequence in a vertical direction, wherein each column assembly comprises 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 rib plate is connected to the inner wall of the outer column and the outer wall of the inner column at two ends respectively; the welding method comprises the steps of temporarily fixing two adjacent column assemblies by a connecting plate, welding the inner columns of the two adjacent column assemblies, and then welding the rib plates of the two adjacent column assemblies. The welding method can effectively solve the butt joint problem of the combined column in a construction site, and the welding quality of the combined column is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a welding method and a composite column. BACKGROUND

[0002] In the related art, the composite column has the characteristics of large vertical bearing capacity and overall rigidity, good plastic deformation capacity and ductility, and excellent seismic performance. For existing composite columns, due to the complex structure and large size of the composite column, the composite column needs to be segmented and shipped to the construction site under the limitation of the transportation mode, which leads to the need for a large amount of manpower and equipment to connect the segmented composite column on site. However, due to the confusion of the on-site construction, the connection of the composite column on site is difficult, which leads to poor welding quality of the composite column. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a welding method that can effectively solve the connection problem of the composite column on site, and the welding quality of the composite column is high.

[0004] The present application also proposes a composite column.

[0005] According to the welding method of the first aspect of the present application, the composite column includes a plurality of column assemblies arranged in a vertical direction, and each 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 plate are connected to the inner wall of the outer column and the outer wall of the inner column, respectively.

[0006] The welding method includes the following steps:

[0007] Temporarily fix the two adjacent column assemblies by a connecting plate;

[0008] Weld the inner columns of the two adjacent column assemblies, and then weld the rib plates of the two adjacent column assemblies.

[0009] According to the welding method of the present application, the two adjacent column assemblies are temporarily fixed by a connecting plate, the inner columns of the column assemblies are welded first, and then the rib plates of the column assemblies are welded. Since the two adjacent column assemblies can be temporarily fixed, the connection difficulty is reduced. And the welding sequence from inside to outside can be used, so that the quality of the weld is high. Therefore, the welding method can effectively solve the connection problem of the composite column on site, and the welding quality of the composite column is high.

[0010] According to the welding method of some embodiments of the present application, after the rib plate of the two adjacent column assemblies is welded again, the method further comprises the step of welding the outer column of the two adjacent column assemblies.

[0011] According to the welding method of some embodiments of the present application, after the outer column of the two adjacent column assemblies is welded, the method further comprises the step of welding one side of a reinforcing plate to the outer surface of the outer column of the two adjacent column assemblies.

[0012] According to the welding method of some embodiments of the present application, before the inner column of the two adjacent column assemblies is welded, the method further comprises the step of opening a welding hole in the rib plate.

[0013] According to the welding method of some embodiments of the present application, before the inner column of the two adjacent column assemblies is welded, the method further comprises the step of arranging a backing plate on the back of the inner column.

[0014] According to the welding method of some embodiments of the present application, before the rib plate of the two adjacent column assemblies is welded again, the method further comprises the step of arranging a backing plate on the back of the rib plate.

[0015] According to the welding method of some embodiments of the present application, the surface of the outer column is welded with an ear plate, and two connecting plates are respectively connected to the two sides of the ear plate.

[0016] According to the welding method of some embodiments of the present application, after the rib plate of the two adjacent column assemblies is welded again, the method further comprises the step of cutting off the connecting plate.

[0017] According to the combined column of the second aspect of the embodiments of the present application, comprising:

[0018] A plurality of column assemblies, the plurality of column assemblies are arranged and connected in sequence in the vertical direction, the column assembly comprises 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 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.

[0019] A plurality of reinforcing plates, one side of the reinforcing plate is welded to the outer surface of the two adjacent outer columns.

[0020] According to the combined column of the embodiments of the present application, at least has the following beneficial effects: the column assembly comprises an inner column and an outer column, and the inner column and the outer column are connected through a rib plate. At the same time, the outer columns of two adjacent combined columns are connected through a reinforcing plate. In this way, the combined column not only meets the structural strength, but also reduces the wall thickness and saves the amount of steel.

[0021] According to some embodiments of the present application, the plurality of rib plates are circumferentially arranged around the center of the inner column.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described with reference to the attached drawings and examples in which:

[0024] Figure 1 Flow chart of the welding method according to some embodiments of the present application;

[0025] Figure 2 Schematic view of the combined column without removing the ear plate and the connecting plate in the welding method according to some embodiments of the present application;

[0026] Figure 3 Schematic view of another angle of Figure 2 Schematic view of another angle of

[0027] Figure 4 Schematic view of the combined column according to some embodiments of the present application.

[0028] REFERENCE NUMERALS

[0029] Combined column 10, column assembly 100, inner column 200, outer column 300, rib plate 400, reinforcing plate 500, ear plate 600, connecting plate 700. DETAILED DESCRIPTION

[0030] Embodiments of the present application are described in detail below with reference to the attached drawings, in which examples of the embodiments are shown, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the attached drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In the description of the present application, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0035] In the related art, 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. Among them, for the existing composite column 10, because its structure is very complex, and the size of the composite column 10 is large. Therefore, under the limitation of the transportation mode, the composite column 10 often needs to be segmented and segmented, and then shipped to the construction site, which leads to the need to spend a lot of manpower and equipment to connect the segmented composite column 10 on site. However, when connecting the composite column 10 on site, due to the chaos of on-site construction, it is difficult to connect the composite column 10, thereby making the welding quality of the composite column 10 poor. When the welding quality of the composite column 10 is poor, the strength of the composite column 10 is difficult to meet the strength requirement. Therefore, the present application proposes a welding method.

[0036] The composite column 10 is generally formed by welding multiple column assemblies 100 with each other. If the composite column 10 is processed in the factory and then transported to the construction site, it is not conducive to transport to the construction site due to its large length and weight. Therefore, the composite column 10 is connected by multiple column assemblies 100 to facilitate transportation. The specific structure of the column assembly 100 in the present application will be introduced below. Please refer to Figure 2 and Figure 3In some embodiments, the column assembly 100 comprises an inner column 200, an outer column 300 and a rib plate 400. The outer column 300 has a storage cavity, the inner column 200 is arranged in the storage cavity, and two ends of the rib plate 400 are connected to the inner wall of the outer column 300 and the outer wall of the inner column 200, respectively. Further, the combined column 10 comprises a plurality of column assemblies 100 arranged and connected in sequence in the vertical direction.

[0037] Continuing to introduce the welding method, please refer to Figure 1 In some embodiments, the welding method is used for welding the combined column 10. The welding method comprises the steps of:

[0038] S100, temporarily fixing the two adjacent column assemblies 100 by the connecting plate 700;

[0039] S200, welding the inner columns 200 of the two adjacent column assemblies 100, and then welding the rib plates 400 of the two adjacent column assemblies 100.

[0040] Specifically, after temporarily fixing the two adjacent column assemblies 100 by the connecting plate 700, the inner columns 200 in the column assemblies 100 are welded first, and then the rib plates 400 in the column assemblies 100 are welded. Since the two adjacent column assemblies 100 can be temporarily fixed, the butt joint difficulty is reduced. And the welding sequence from inside to outside can be used, so that the quality of the weld is higher. In this way, the welding method can effectively solve the butt joint problem of the combined column 10 in the construction site, and the welding quality of the combined column 10 is higher.

[0041] It should be noted that in the existing column assembly 100, the structure 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 method is to weld 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, the work efficiency can be improved by welding from the inner column 200 first, thereby saving certain labor costs.

[0042] Further, for the column assembly 100, the inner column 200 and the rib plate 400 are welded, thereby improving the strength of the two adjacent column assemblies 100. Welding the outer columns 300 of the two adjacent column assemblies 100 can further improve the strength of the combined column 10. Therefore, in some embodiments, after welding the rib plates 400 of the two adjacent column assemblies 100, the welding method further comprises the step of welding the outer columns 300 of the two adjacent column assemblies 100.

[0043] In order to further improve the strength of the combined column 10, it is necessary to improve the connection strength at the connection of the 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 on the surface of the two adjacent outer columns 300, so as to improve the strength of the combined column 10. In some embodiments, after the outer columns 300 of the two adjacent column assemblies 100 are welded, the welding method further includes the step of welding one side of the reinforcing plate 500 to the outer surface of the outer columns 300 of the two adjacent column assemblies 100. Wherein, the reinforcing plate 500 can be made of metal, and the thickness of the reinforcing plate 500 can be between 4mm and 10mm.

[0044] It should be noted that the welding method mentioned above can adopt symmetrical welding, which can reduce the influence of welding stress on the installation accuracy of the combined column 10, and the welding sequence from inside to outside not only solves the problem of on-site butt joint process of the combined column 10, but also improves the welding quality of the weld and greatly improves the construction efficiency while reducing the construction cost.

[0045] Specifically, in order to improve the quality of the weld after welding, the combined column 10 can select the preheating temperature and preheating method before welding according to the local temperature and the thickness of the steel plate, so as to make the post-welding heat preservation and slow cooling. The multi-layer and multi-pass welding can effectively avoid the cracks or other defects caused by excessive welding stress.

[0046] Further, in some embodiments, before the inner columns 200 of the two adjacent column assemblies 100 are welded, the welding method further includes the step of opening the welding hole in the rib plate 400. Specifically, the welding hole of the rib plate 400 can reserve a certain space, so as to facilitate the welding of the inner column 200 by the staff, which is beneficial to improve the work efficiency and reduce the work difficulty.

[0047] Further, in some embodiments, before the inner columns 200 of the two adjacent column assemblies 100 are welded, the welding method further includes the step of setting a backing plate on the back of the inner column 200. Specifically, after the backing plate is set on the back of the inner column 200, the welding quality of the two adjacent inner columns 200 can be good.

[0048] In some embodiments, before the rib plates 400 of the two adjacent column assemblies 100 are welded, the welding method further includes the step of setting a backing plate on the back of the rib plate 400. Specifically, after the backing plate is set on the back of the rib plate 400, the welding quality of the two adjacent rib plates 400 can be good.

[0049] Further, how the connecting plate 700 fixes the two adjacent column assemblies 100 is described. Please refer to Figure 2In some embodiments, the surface of the outer column 300 is welded with an ear plate 600, and two connecting plates 700 are connected to the two sides of the ear plate 600 respectively. The ear plate 600 can facilitate the traction of the column assembly 100 by the staff, and the ear plates 600 on the adjacent column assemblies 100 are connected through the connecting plates 700, so that the two adjacent column assemblies 100 can be fixed.

[0050] In some embodiments, after the rib plate 400 of the two adjacent column assemblies 100 is welded, the welding method further comprises the step of cutting the connecting plate 700. Specifically, the ear plate 600 and the connecting plate 700 play a role in temporarily fixing the column assembly 100, and can be cut off after the reinforcing plate 500 of the outer column 300 is welded. The cutting of the ear plate 600 and the connecting plate 700 can be performed by flame cutting or mechanical cutting. After cutting, the rough cutting surface can be polished to improve the appearance of the combined column 10.

[0051] Please refer to Figure 4 In some embodiments, the combined column 10 comprises a plurality of column assemblies 100 and a plurality of reinforcing plates 500. The plurality of column assemblies 100 are arranged and connected in sequence in the vertical direction, and the column assembly 100 comprises an inner column 200, an outer column 300 and a rib plate 400. The outer column 300 has a storage cavity, the inner column 200 is arranged in the storage cavity, and the two ends of the rib plate 400 are connected to the inner wall of the outer column 300 and the outer wall of the inner column 200 respectively. One side of the reinforcing plate 500 is welded to the outer surface of the two adjacent outer columns 300. Specifically, the column assembly 100 comprises 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 the two adjacent combined columns 10 are connected through the reinforcing plate 500. In this way, the combined column 10 not only meets the structural strength, but also reduces the wall thickness and saves the amount of steel.

[0052] Further, please refer to Figure 4 In some embodiments, the rib plate 400 has a plurality of rib plates 400 arranged circumferentially 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.

[0053] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A welding method, characterized in that, For welding composite columns, the composite column includes multiple column assemblies arranged sequentially in a vertical direction. Each column assembly includes an inner column, an outer column, and a rib. The outer column has a storage cavity, the inner column is disposed 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 includes the following steps: Two adjacent column assemblies are temporarily fixed by connecting plates, ear plates are welded to the surface of the outer column, and the two connecting plates are respectively connected to both sides of the ear plates; Weld the inner columns of two adjacent column assemblies, and then weld the ribs of two adjacent column assemblies; After the ribs of the two adjacent column assemblies are welded together, the connecting plate is removed.

2. The welding method according to claim 1, characterized in that, After welding the ribs of the two adjacent column assemblies, the method further includes the step of welding the outer columns of the two adjacent column assemblies.

3. The welding method according to claim 2, characterized in that, After welding the outer columns of two adjacent column assemblies, the method further includes the step of welding one side of a reinforcing plate to the outer surface of the outer columns of the two adjacent column assemblies.

4. The welding method according to claim 1, characterized in that, Before welding the inner columns of the two adjacent column assemblies, the method further includes the step of creating weld holes in the ribs.

5. The welding method according to claim 1, characterized in that, Prior to welding the inner columns of two adjacent column assemblies, the method further includes the step of: providing a backing plate on the back of the inner column.

6. The welding method according to claim 1, characterized in that, Before welding the ribs of the two adjacent column assemblies, the method further includes the step of: providing a backing plate on the back of the ribs.

7. A composite column, formed by welding according to any one of claims 1 to 6, characterized in that, include: Multiple column assemblies are arranged and connected in sequence along a vertical direction. Each column assembly includes an inner column, an outer column, and a rib. The outer column has a storage cavity, the inner column is disposed 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. Multiple reinforcing plates, one side of which is welded to the outer surface of two adjacent outer columns.

8. The combined column according to claim 7, characterized in that, The ribs are multiple, and the multiple ribs are arranged circumferentially around the center of the inner column.

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