Beam-column steel structure connection joint and method

Abstract

The present application relates to the technical fields of steel structure connecting joint, and discloses a kind of steel structure connecting joint and method of beam column, including steel column and steel beam, a pair of reinforcing rib plate is connected between steel column web and steel column flange plate along height direction, a pair of stiffener is arranged between reinforcing rib plate, and stiffener end extends out steel column flange plate and is set length, adjacent stiffener and the skin plate connection between stiffener and reinforcing rib plate, steel beam end is fixedly connected with the skin plate between stiffener and steel beam web connecting plate, and the skin plate between stiffener and reinforcing rib plate is connected with steel beam outside through steel beam support connecting plate;The connecting joint of steel column and steel beam is connected through the setting of stiffener, reinforcing rib plate and skin plate, so that the connection of steel beam and steel column can cancel welding corbel, thereby reducing weld, and welding space is increased, to improve intelligent processing production line utilization rate;In addition, cancel corbel, guarantee that steel column occupies small space, improve transportation efficiency, reduce transportation cost.

Description

Technical Field

[0001] This invention relates to the field of steel structure connection node technology, and in particular to a steel structure connection node and method for beams and columns. Background Technology

[0002] With the continuous increase in steel production and the continuous development and improvement of steel structure technology, steel structures have developed rapidly and are increasingly used in industrial and civil buildings. Intelligent processing production lines for steel structures play a crucial role.

[0003] The inventors discovered that the traditional design of weak axis joints in steel structures involves welding steel beams to the weak axis of steel columns to form corbels. This requires multiple welds within the C-shaped space formed by the flanges and webs of the steel columns. Due to the influence of multiple stiffening plates, the welding space in the C-shaped space is very small, necessitating manual welding, which results in low utilization of intelligent processing production lines. Furthermore, the presence of welded steel beams connecting to the corbels severely impacts transportation efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a steel structure connection node and method for beams and columns. The connection node between the steel column and the steel beam eliminates the need for welded brackets by setting stiffening plates, reinforcing ribs, and skin plates, thereby reducing welds and increasing welding space to improve the utilization rate of intelligent processing production lines. In addition, eliminating brackets ensures that the steel column occupies less space, improving transportation efficiency and reducing transportation costs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, a steel structure connection node for a beam and column includes a steel column and a steel beam. A pair of reinforcing plates are connected between the web and flange of the steel column along the height direction. A pair of stiffening plates are provided between the reinforcing plates, and the ends of the stiffening plates extend beyond the flange of the steel column by a predetermined length. Adjacent stiffening plates and stiffening plates and reinforcing plates are connected by skin plates. The ends of the steel beam are fixedly connected to the skin plates between the stiffening plates by steel beam web connecting plates. The skin plates between the stiffening plates and reinforcing plates are connected to the outside of the steel beam by steel beam support connecting plates.

[0007] As a further implementation, the skin plate includes a first skin plate, a second skin plate, and a third skin plate from top to bottom along the height direction of the steel column. The second skin plate is located between the stiffening plates, and the first and third skin plates are located between the stiffening plates and the reinforcing ribs.

[0008] As a further implementation, the skin plate is welded to the edge of the steel column flange, and the weld height is the same as the thickness of the skin plate.

[0009] As a further implementation, the stiffening plate is connected between the steel column flange plate and the steel column web plate, the thickness of the stiffening plate is the same as the thickness of the steel beam flange plate, and the stiffening plate is welded to the end of the steel beam flange plate.

[0010] As a further implementation, the second skin plate is perpendicular to and welded to the steel beam web connecting plate, and one side of the steel beam web connecting plate is fixedly connected to the end of the steel beam web by a fastener.

[0011] As a further implementation, the outer end of the steel beam flange is connected to the first skin plate and / or the third skin plate via a steel beam support connecting plate. A support bolt connecting plate is vertically connected to the first skin plate and / or the third skin plate, and the support bolt connecting plate is fixedly connected to the steel beam support connecting plate via support bolts.

[0012] As a further implementation, the distance between the support bolt connecting plate and the steel beam flange plate is 30-50mm.

[0013] As a further implementation, the distance between the reinforcing rib and the stiffening plate is greater than the height of the steel beam.

[0014] As a further implementation, the edge of the reinforcing rib is flush with the edge of the steel column flange.

[0015] Secondly, a construction method for a steel structure connection node between beams and columns includes the following steps:

[0016] Two stiffening plates are welded between the steel column web and the steel column flange, according to the height of the steel beam. The ends of the stiffening plates extend beyond the steel column flange by a set length. Then, a pair of reinforcing ribs are welded between the steel column web and the steel column flange, with the stiffening plates positioned between the reinforcing ribs. Skin plates are welded between the stiffening plates and the reinforcing ribs, and between adjacent stiffening plates. The steel beam web connecting plate is perpendicularly set and welded to the second skin plate, and the support bolt connecting plate is perpendicularly set and welded to the first skin plate and / or the third skin plate. The end of the steel beam with the steel beam support connecting plate is butt-welded to the stiffening plate. The steel beam web connecting plate is fixed to the steel beam web by high-strength bolts, and the steel beam support connecting plate is fixed to the support bolt connecting plate by support bolts, forming a steel structure connection node of beam and column as described above.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The connection node between the steel column and the steel beam of the present invention, through the setting of stiffening plates, reinforcing ribs and skin plates, eliminates the need for welding brackets in the connection between the steel beam and the steel column, thereby reducing welds and increasing welding space to improve the utilization rate of intelligent processing production lines; in addition, eliminating brackets ensures that the steel column occupies less space, improving transportation efficiency and reducing transportation costs.

[0019] 2. The stiffening plate of the present invention extends beyond the steel column flange plate by a set length, which facilitates the welding of the skin plate and also facilitates the docking with the steel beam flange plate, increasing the welding space.

[0020] 3. The support bolt connection plate of the present invention is set to be longer than the upper flange of the steel beam to ensure that the support bolt connection plate and the steel beam support connection plate have sufficient installation space.

[0021] 4. In this invention, the distance between the reinforcing rib and the stiffening plate is greater than the height of the steel beam, ensuring that the support bolt connection plate and the steel beam support connection plate have sufficient height, thereby ensuring sufficient fixing strength for the steel beam. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 This is a schematic diagram of the steel structure connection node of the beam and column in an embodiment of the present invention;

[0024] Figure 2 This is a sectional view of the steel structure connection node between beams and columns in an embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of the beams and columns before assembly in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure after the beams and columns are assembled in an embodiment of the present invention.

[0027] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0028] Among them: 1. Steel beam web connecting plate, 2. Stiffening plate, 3. Reinforcing rib plate, 4. First skin plate, 5. Second skin plate, 6. Third skin plate, 7. High-strength bolt, 8. Steel column, 9. Steel beam, 10. Support bolt connecting plate, 11. Steel beam support connecting plate, 12. Support bolt, 81. Steel column web plate, 82. Steel column flange plate. Detailed Implementation

[0029] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0030] Example 1

[0031] In a typical embodiment of the present invention, reference is made to Figures 1-4As shown, a steel structure connection node for a beam and column includes a steel column 8 and a steel beam 9. A pair of reinforcing plates 3 are connected between the web plate 81 and the flange plate 82 of the steel column 8 along the height direction on the weak axis side. A pair of stiffening plates 2 are provided between the reinforcing plates 3. A total of two stiffening plates 2 and two reinforcing plates 3 are welded, wherein the two stiffening plates 2 are located between the two reinforcing plates 3, and the distance between the two stiffening plates 2 is adapted to the height of the steel beam 9 to facilitate butt jointing and welding with the two flange plates of the steel beam 9.

[0032] like Figure 1 As shown, the stiffening plate 2 extends beyond the edge of the steel column flange plate 82 by a predetermined length, preferably 50mm. The stiffening plate 2 is located on the steel column 8 at the corresponding required height of the welded steel beam 9. The stiffening plate 2, the reinforcing rib 3, and the steel column flange plate 82 and the steel column web plate 81 of the steel column 8 are welded by fillet welds, and the end of the reinforcing rib 3 is flush with the edge of the steel column flange plate 82.

[0033] like Figure 1 and Figure 2 As shown, adjacent stiffening plates 2 and stiffening plates 2 and reinforcing ribs 3 are connected by skin plates. The skin plates include a first skin plate 4, a second skin plate 5, and a third skin plate 6 along the height of the steel column 8 from top to bottom. The second skin plate 5 is located between the two stiffening plates 2, and the first skin plate 4 and the third skin plate 6 are located between the stiffening plate 2 and the reinforcing rib 3. The skin plates overlap the edge of the steel column flange plate 82 by 3mm and are welded with full penetration welds. The weld leg height is the same as the skin plate thickness. Similarly, the skin plates are welded to the edges of the reinforcing ribs 3 with fillet welds, with the weld leg height being the same as the skin plate thickness. The upper and lower sides of the second skin plate 5 are welded to the stiffening plates 2 with fillet welds, and the protruding portion of the stiffening plate 2 is located outside the second skin plate 5.

[0034] The stiffening plate 2 extends 50mm beyond the steel column flange, dividing the skin plate into a first skin plate 4, a second skin plate 5, and a third skin plate 6. The extension of the stiffening plate 2 beyond the steel column flange increases the operating space for welding the skin plate and also increases the space for butt-welding with the steel beam flange plate. In this embodiment, the thickness of the stiffening plate 2 is the same as the thickness of the steel beam flange plate, facilitating welding of the stiffening plate 2 to the end of the steel beam flange plate.

[0035] The steel beam web plate connecting plate 1 is welded to the middle position of the second skin plate 5, and the support bolt connecting plate 10 is welded to the middle position of the first skin plate 4. Both are welded firmly with fillet welds. The steel beam web plate connecting plate 1 and the support bolt connecting plate 10 are both set vertically and perpendicular to the skin plate.

[0036] The outer side of the steel beam flange plate at the end of steel beam 9 is welded to the steel beam support connecting plate 11, and then connected to the steel column, so that the end of the steel beam web plate is welded to the second skin plate 5. The end of the steel beam web plate is provided with bolt holes, and the steel beam web plate connecting plate 1 is also provided with bolt holes. The end of the steel beam web plate and the steel beam web plate connecting plate 1 are fixedly connected by high-strength bolts 7. Similarly, the steel beam support connecting plate 11 is fixedly connected to the support bolt connecting plate 10 and the support bolts 12.

[0037] When welding steel beam 9 to steel column 8, based on strength requirements, it is possible to connect both webs of steel beam 9 to support bolt connection plates 10 via steel beam support connection plates 11. In this case, both the first skin plate and the third skin plate have support bolt connection plates 10. Alternatively, the first skin plate can be connected to the steel beam support connection plate 11 via support bolt connection plates 10. The strength of the first option is greater than that of the second option.

[0038] In this embodiment, the distance between the reinforcing rib plate 3 and the stiffening plate 2 is greater than the height of the steel beam 9, so as to ensure that the support bolt connection plate 10 and the steel beam support connection plate 11 have sufficient height, thereby ensuring the fixing strength of the steel beam 9.

[0039] In this embodiment, the improved connection node between the H-shaped steel column 8 and the steel beam 9 eliminates the welded bracket, increases the welding space, improves the utilization rate of the intelligent processing production line, increases transportation efficiency, and reduces transportation costs.

[0040] Example 2

[0041] In a typical embodiment of the present invention, reference is made to Figures 1-4 As shown, a construction method for a steel structure connection node between beams and columns includes the following steps:

[0042] Two stiffening plates 2 are welded between the web plate 81 and the flange plate 82 of the steel column according to the height of the steel beam 9. The distance between the two stiffening plates 2 is equal to the height of the steel beam 9, and the ends of the stiffening plates 2 extend beyond the flange plate 82 of the steel column by a set length (50mm).

[0043] A pair of reinforcing ribs 3 are welded between the steel column web 81 and the steel column flange 82, and two stiffening plates 2 are located between the reinforcing ribs 3. Both the reinforcing ribs 3 and the stiffening plates 2 are welded to the steel column web 81 and the steel column flange 82 with fillet welds. The thickness of the stiffening plates 2 is the same as the thickness of the steel beam flange 82, facilitating their connection.

[0044] like Figure 2 As shown, the first skin plate 4, the second skin plate 5, and the third skin plate 6 are welded between the stiffening plate 2, the reinforcing rib plate 3, and the adjacent stiffening plate 2 using fillet welds.

[0045] The steel beam web plate connecting plate 1 is set vertically to the second skin plate 5 and welded with fillet welds. The support bolt connecting plate 10 is set vertically to the first skin plate and welded with fillet welds. Both the steel beam web plate connecting plate 1 and the support bolt connecting plate 10 are set vertically in the middle of the skin plate.

[0046] One side of the steel beam support connecting plate 11 is pre-welded to the outer side of the steel beam flange plate at the end of the steel beam, and the other side of the steel beam support connecting plate 11 is fixed to the support bolt connecting plate 10 by support bolts. The end of the steel beam web is fixed to the steel beam web connecting plate 1 by high-strength bolts 7. To ensure strength, the end of the steel beam web can be welded to the second skin plate with a fillet weld, and the steel beam support connecting plate 11 is welded to the first skin plate with a fillet weld.

[0047] During welding, the support bolt connection plate 10 needs to be 30 to 50 mm higher than the upper flange of the steel beam to ensure sufficient installation space.

[0048] The improved connection node between the H-shaped steel column 8 and the steel beam 9 eliminates the welded bracket, increasing the welding space and improving the utilization rate of the intelligent processing production line. At the same time, eliminating the bracket ensures that the steel column occupies less space, improving transportation efficiency and reducing transportation costs.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A steel structure connection node for beams and columns, characterized in that, It includes steel columns and steel beams. A pair of reinforcing ribs are connected between the web and flange of the steel column along the height direction. A pair of stiffening plates are installed between the reinforcing ribs, and the ends of the stiffening plates extend beyond the flange of the steel column by a set length. Adjacent stiffening plates and stiffening plates and reinforcing ribs are connected by skin plates. The ends of the steel beams are fixedly connected to the skin plates between the stiffening plates by steel beam web connecting plates. The skin plates between the stiffening plates and reinforcing ribs are connected to the outside of the steel beams by steel beam support connecting plates.

2. The steel structure connection node for beams and columns according to claim 1, characterized in that, The skin plate includes a first skin plate, a second skin plate, and a third skin plate arranged from top to bottom along the height direction of the steel column. The second skin plate is located between the stiffening plates, and the first and third skin plates are located between the stiffening plates and the reinforcing ribs.

3. A steel structure connection node for beams and columns according to claim 1, characterized in that, The skin plate is welded to the edge of the steel column flange, and the weld height is the same as the thickness of the skin plate.

4. A steel structure connection node for beams and columns according to claim 2, characterized in that, The stiffening plate is connected between the steel column flange plate and the steel column web plate. The thickness of the stiffening plate is the same as the thickness of the steel beam flange plate, and the stiffening plate is welded to the end of the steel beam flange plate.

5. A steel structure connection node for beams and columns according to claim 4, characterized in that, The second skin plate is perpendicular to and welded to the steel beam web plate, and one side of the steel beam web plate is fixedly connected to the end of the steel beam web plate by a fastener.

6. A steel structure connection node for beams and columns according to claim 5, characterized in that, The outer end of the steel beam flange is connected to the first skin plate and / or the third skin plate by a steel beam support connecting plate. A support bolt connecting plate is vertically connected to the first skin plate and / or the third skin plate, and the support bolt connecting plate is fixedly connected to the steel beam support connecting plate by support bolts.

7. A steel structure connection node for beams and columns according to claim 6, characterized in that, The distance between the support bolt connecting plate and the steel beam flange plate is 30-50mm.

8. A steel structure connection node for beams and columns according to claim 1, characterized in that, The distance between the reinforcing rib and the stiffening plate is greater than the height of the steel beam.

9. A steel structure connection node for beams and columns according to claim 8, characterized in that, The edge of the reinforcing rib is flush with the edge of the steel column flange.

10. A construction method for a steel structure connection node between beams and columns, characterized in that, Includes the following steps: Two stiffening plates are welded between the steel column web and the steel column flange according to the height of the steel beam. The ends of the stiffening plates extend beyond the steel column flange by a set length. Then, a pair of reinforcing ribs are welded between the steel column web and the steel column flange, with the stiffening plates located between the reinforcing ribs. Skin plates are welded between the stiffening plates and the reinforcing ribs, and between adjacent stiffening plates. The steel beam web connecting plate is perpendicularly set and welded to the second skin plate, and the support bolt connecting plate is perpendicularly set and welded to the first skin plate and / or the third skin plate. The end of the steel beam with the steel beam support connecting plate is butt-welded to the stiffening plate. The steel beam web connecting plate is fixed to the steel beam web by high-strength bolts, and the steel beam support connecting plate and the support bolt connecting plate are fixed by support bolts, forming the steel structure connection node of the beam and column as described in claim 2.

Images