Portable steel column connecting device

Abstract

The utility model discloses a portable steel column connecting device, including the upper section steel column and lower section steel column, the upper section steel column and lower section steel column are two independent section steel columns, and symmetric side plate ears are welded on the side of the upper and lower section steel columns, bolt holes are formed in the side plate ears, the side plate ears are fixed with the upper section steel column through the corner weld joint, the side edge ear and the connecting plate are fixed together through the bolt hole, the upper section steel column and the lower section steel column are quickly docked together, and then the two section steel columns are fixed and connected together through the high-strength weld joint, the utility model discloses a portable steel column connecting device, including the upper section steel column and lower section steel column, the upper section steel column and lower section steel column are two independent section steel columns, can be used in the complex position of the steel structure node of actual field, and the structure can be factory-made, on-site installed and welded, the process is simple, and the design and construction cost are greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of steel column connection technology, specifically relating to a convenient steel column connection device. Background Technology

[0002] In steel structure construction, the handling of steel column connection nodes has always been a critical aspect affecting project efficiency and safety. Traditional steel column connection methods require on-site drilling and welding operations, which not only necessitates complex design calculations to determine the processing locations beforehand but also often faces operational difficulties due to limited on-site construction space, leading to project delays and increased labor costs. Furthermore, on-site welding quality is greatly affected by environmental factors, easily resulting in insufficient connection precision, poor structural stability, and high subsequent maintenance costs, failing to meet the dual demands of modern building engineering for efficient construction and safety performance.

[0003] Currently, the traditional approach requires drilling or on-site welding of steel columns before construction can begin. This process takes a long time for processing and design calculations, and construction can only proceed after these preparations are completed. Furthermore, the narrow working area on-site often makes construction difficult, resulting in idle time, increased costs, and significant inconvenience.

[0004] Therefore, how to accelerate construction and reduce construction costs while ensuring safety is a pressing engineering challenge. Consequently, there is an urgent need for a device that can solve these technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a convenient steel column connection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient steel column connection device, comprising an upper steel column and a lower steel column, wherein the upper and lower steel columns are two independent steel columns connected by a butt joint. The four corners of the bottom of the upper steel column are planed flat, and symmetrical side plate lugs are welded to the sides of the upper steel column. Bolt holes are provided on the side plate lugs, and the side plate lugs are fixed to the upper steel column by fillet welds. The top edge of the lower steel column is milled flat with the column opening section, and symmetrical side plate lugs are welded to its sides. Bolt holes corresponding to the side plate lugs of the upper steel column are provided on the side plate lugs, and the side plate lugs are fixed to the lower steel column by fillet welds.

[0007] Preferably, the large hexagonal head bolts pass through the side plate lugs and bolt holes of the upper and lower steel columns, and the side plate lugs are fixed by the connecting plate to achieve pre-connection of the upper and lower steel columns.

[0008] Preferably, an upper column transverse diaphragm is welded near the bottom of the upper steel column, and a lower column top diaphragm is provided at the top of the lower steel column. Both the upper column transverse diaphragm and the lower column top diaphragm are fixed to the steel column by fillet welds, and their thicknesses are not less than 16mm. The planed area at the joint is welded by full penetration bevel welding. After the welding is completed and strength is achieved, the side plate lugs on both sides are cut off.

[0009] Preferably, the top partition of the lower column is located on the top end face of the lower steel column.

[0010] Preferably, after the mating surfaces of the upper and lower steel columns are planed flat, a backing is provided during welding.

[0011] Preferably, the welding strength of the fillet weld must meet the connection strength requirements of the upper and lower steel columns with the lugs and diaphragms.

[0012] Preferably, the wall thickness of the upper column is the overall cross-sectional thickness of the upper steel column, and the wall thickness of the lower column is the overall cross-sectional thickness of the lower steel column.

[0013] Preferably, the side plate cantilever has bolt holes, and large hexagonal head bolts pass through the bolt holes to fix the side plate cantilever and the connecting plate together, so as to quickly connect the upper steel column and the lower steel column together.

[0014] Compared with the prior art, this utility model provides a convenient steel column connection device, which has the following advantages:

[0015] 1. This utility model effectively solves many pain points in the traditional steel column connection process. The device adopts a factory-prefabricated lateral lug and bolt connection structure, realizing rapid and accurate alignment of the upper and lower steel column sections, avoiding complex on-site processing procedures, and significantly shortening the construction cycle;

[0016] 2. The transverse diaphragms installed at the upper and lower ends of the column enhance the overall bending resistance of the steel column, reduce the overall structural deformation, and effectively improve the overall strength and seismic performance of the steel structure.

[0017] 3. The lugs used for temporary fixing of this device can be easily cut off after welding, without affecting the building's functionality;

[0018] 4. This device can be used in complex locations of such steel structure nodes on actual sites, and supports standardized factory production and rapid on-site installation, simplifying construction processes, significantly reducing design and construction costs, and providing a more efficient and economical connection solution for steel structure engineering. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the installation structure proposed in this utility model;

[0021] Figure 2 This is a perspective view of the present invention;

[0022] Figure 3 This is a schematic diagram of the connecting plate structure proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the fillet weld structure proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the upper column diaphragm structure proposed in this utility model;

[0025] Figure 6 This is a schematic diagram of the partition plate structure at the top of the lower column proposed in this utility model;

[0026] In the diagram: 1. Upper steel column; 2. Lower steel column; 3. Large hexagonal head bolt; 4. Connecting plate; 5. Upper column diaphragm; 6. Lower column top diaphragm; 7. Full penetration bevel weld; 8. Planed; 9. Gasket; 10. Fillet weld; 11. Side plate lug; 12. Butt joint position; 13. Bolt hole; 14. Lower column wall thickness; 15. Upper column wall thickness. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 This utility model provides a technical solution: a convenient steel column connection device, including an upper steel column 1 and a lower steel column 2. The upper steel column 1 and the lower steel column 2 are two independent steel columns, which are connected by a butt joint 12. The four corners of the bottom of the upper steel column 1 are planed flat 8 with a planing depth of 5mm, and the four corners of the bottom are cut to form an angle of ≥35°. Symmetrical side plate lugs 11 are welded to the side of the upper steel column 1. Bolt holes 13 are opened on the side plate lugs 11, and the side plate lugs 11 are fixed to the upper steel column 1 by fillet welds 10. The top edge of the lower steel column 2 is milled flat with the column opening section, and symmetrical side plate lugs 11 are welded to its side. Bolt holes 13 corresponding to the side plate lugs 11 of the upper steel column 1 are opened on the side plate lugs 11, and the side plate lugs 11 are fixed to the lower steel column 2 by fillet welds 10.

[0029] In this utility model, preferably, the large hexagonal head bolt 3 passes through the side plate lugs 11 and bolt holes 13 of the upper steel column 1 and the lower steel column 2, and the side plate lugs 11 are fixed by the connecting plate 4 to achieve the pre-connection of the upper steel column 1 and the lower steel column 2. The upper steel column 1 is welded with an upper column horizontal partition 5 near the bottom, and the lower steel column 2 is provided with a lower column top partition 6. Both the upper column horizontal partition 5 and the lower column top partition 6 are fixed to the steel column by fillet welds 10, and the thickness of both is not less than 16mm. The planed area of ​​the butt joint 12 is welded by a full penetration bevel weld 7. After the welding is completed and strength is formed, the side plate lugs 11 are cut off.

[0030] In this utility model, preferably, the top partition plate 6 of the lower column is located on the top end face of the lower steel column 2. After the mating surface of the upper steel column 1 and the lower steel column 2 is planed flat 8, a backing 9 is set during welding. The welding strength of the fillet weld 10 must meet the connection strength requirements of the upper steel column 1, the lower steel column 2, the cantilever lug 11, and the transverse partition plate 5. The upper column wall thickness 15 is the overall cross-sectional thickness of the upper steel column 1, and the lower column wall thickness 14 is the overall cross-sectional thickness of the lower steel column 2. Bolt holes 13 are opened on the side plate cantilever lug 11. The large hexagonal head bolt 3 passes through the bolt holes 13 to fix the side plate cantilever lug 11 and the connecting plate 4 together, so as to quickly connect the upper steel column 1 and the lower steel column 2 together.

[0031] The working principle and usage process of this utility model are as follows: In use, the upper steel column 1 and the lower steel column 2 are joined at the joint position 12. The four corners at the bottom of the upper steel column 1 are planed flat 8 to ensure a smooth joint surface. The top edge of the lower steel column 2 is milled flat with the column opening section to ensure joint accuracy. Symmetrical side plate lugs 11 are welded to the sides of the upper steel column 1, and the side plate lugs 11 are fixed to the upper steel column 1 by fillet welds 10. Similarly, symmetrical side plate lugs 11 are welded to the sides of the lower steel column 2. Corresponding bolt holes 13 are opened on the side plate lugs 11. Large hexagonal head bolts 3 pass through the side plate lugs 11 and the bolt holes 13, and are fixed to the two side plate lugs 11 by connecting plates 4, achieving pre-joint of the upper steel column 1 and the lower steel column 2. This structure can quickly position and bear temporary loads. The upper column diaphragm 5 is welded near the bottom, and the lower column top diaphragm 6 is set at the top of the lower column 2. The upper column diaphragm 5 and the lower column top diaphragm 6 are fixed by fillet welds 10 with a thickness of not less than 16mm, which can enhance the bending resistance of the steel column and reduce the overall deformation of the structure. After the butt joint surface of the upper column 1 and the lower column 2 is planed 8, a backing 9 is set during welding to ensure the welding quality. The planed area of ​​the butt joint 12 is welded by full penetration groove welds 7 to form a high-strength connection. The welding strength of the fillet welds 10 meets the connection strength requirements of each component. After the welding is completed and the strength is formed, the side plate cantilever ears 11 on both sides are cut off to avoid affecting the use of the building function. The upper column wall thickness 15 and the lower column wall thickness 14 are the overall cross-sectional thicknesses of the upper column 1 and the lower column 2, respectively, to ensure the structural bearing capacity.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient steel column connection device, comprising an upper steel column (1) and a lower steel column (2), characterized in that, The upper steel column (1) and the lower steel column (2) are two independent steel columns, which are connected by a joint (12). The four corners of the bottom of the upper steel column (1) are planed (8). The upper steel column (1) has symmetrical side plate lugs (11) welded on its side. The side plate lugs (11) have bolt holes (13) and are fixed to the upper steel column (1) by fillet welds (10). The top edge of the lower steel column (2) is milled flat with the column opening section. The side plate lugs (11) have symmetrical side plate lugs (11) welded on its side. The side plate lugs (11) have bolt holes (13) corresponding to the side plate lugs (11) of the upper steel column (1). The side plate lugs (11) are fixed to the lower steel column (2) by fillet welds (10).

2. The convenient steel column connection device according to claim 1, characterized in that, The large hexagonal head bolt (3) passes through the side plate lugs (11) and bolt holes (13) of the upper steel column (1) and the lower steel column (2), and fixes the side plate lugs (11) on both sides through the connecting plate (4) to achieve the pre-connection of the upper steel column (1) and the lower steel column (2).

3. The convenient steel column connection device according to claim 1, characterized in that, The upper section of the steel column (1) is welded with an upper column diaphragm (5) near the bottom. The lower section of the steel column (2) is provided with a lower column top diaphragm (6). The upper column diaphragm (5) and the lower column top diaphragm (6) are both fixed to the steel column by fillet welds (10), and the thickness of each is not less than 16mm. The planed area of ​​the butt joint (12) is welded by full penetration bevel weld (7). After the welding is completed and strength is formed, the side plate ears (11) are cut off.

4. A convenient steel column connection device according to claim 3, characterized in that, The top partition (6) of the lower column is located on the top end face of the lower steel column (2).

5. A convenient steel column connection device according to claim 1, characterized in that, After the mating surfaces of the upper steel column (1) and the lower steel column (2) are planed (8), a liner (9) is placed during welding.

6. A convenient steel column connection device according to claim 1, characterized in that, The welding strength of the fillet weld (10) must meet the connection strength requirements of the upper steel column (1), the lower steel column (2), the cantilever (11), and the diaphragm (5).

7. A convenient steel column connection device according to claim 1, characterized in that, The upper column wall thickness (15) is the overall cross-sectional thickness of the upper steel column (1), and the lower column wall thickness (14) is the overall cross-sectional thickness of the lower steel column (2).

8. A convenient steel column connection device according to claim 1, characterized in that, The side plate cantilever (11) has bolt holes (13). The large hexagonal head bolt (3) passes through the bolt holes (13) to fix the side plate cantilever (11) and the connecting plate (4) together, so that the upper steel column (1) and the lower steel column (2) can be connected together quickly.

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