Assembly type outer ring plate connecting joint of H-shaped steel beam and steel column

Abstract

The utility model discloses an assembly type outer ring plate connecting joint of an H-shaped steel beam and a steel column. The ends of the four H-shaped steel beams are connected to the side wall of the steel column through lug plates and split outer ring plate pairs, the split outer ring plate pairs are arranged on the upper sides and the lower sides of the lug plates, and every two adjacent H-shaped steel beams are connected to the side wall of the steel column in a lap joint mode through the split outer ring plate pairs. H-shaped steel beam webs are fixedly connected with the side walls of the steel columns through lug plates, and H-shaped steel beam upper flanges and H-shaped steel beam lower flanges are fixedly connected to the side walls of the steel columns through respective split outer ring plates. The node is simple and effective in structural form, convenient and fast to machine, capable of reducing construction difficulty and manufacturing cost, capable of improving construction and production efficiency, clear in force transmission path, capable of improving overall performance, capable of meeting the force transmission requirement of the beam column rigid connection node and wide in application range.

Description

Technical Field

[0001] The utility model belongs to the field of connection node design of steel beams and steel pipe columns, and specifically relates to an assembled outer ring plate connection node for H-shaped steel beams and steel columns, which can be widely used in the rigid connection of H-shaped steel beams and steel columns in multi-story steel structures. Background Art

[0002] The technical difficulties of multi-story prefabricated steel structure buildings mainly focus on the beam-column connection nodes. The existing technologies for the rigid connection nodes between box columns and H-shaped steel beams are mainly divided into the following three types:

[0003] The upper and lower flanges of the H-shaped steel beam are connected to the box column with full penetration welds, and the web of the H-shaped steel beam is connected to the box column with high-strength bolts;

[0004] The upper and lower flanges and webs of the H-shaped steel beams are connected to the box columns with full penetration welds;

[0005] The upper and lower flanges and webs of the H-shaped steel beam are connected to the box columns with high-strength bolts.

[0006] In addition to the beam-column welding of the first two methods, these three connection methods all require the arrangement of partitions at the connection between the steel column and the upper and lower flanges of the H-beam. Among them, the partitions can be divided into internal partitions and through partitions. The internal partitions need to be welded to the inner wall of the steel column by electroslag welding. This welding process is complex and requires high welding technical operation requirements. It requires on-site welding operations, which not only increases costs but also affects the assembly speed. The through partitions also need to be planned in advance according to the height of the structural steel beams. It is easy to make mistakes and makes the work more cumbersome. In addition, the through partitions will destroy the integrity of the column and affect the rigidity and bearing capacity of the column. Therefore, the current beam-column rigid connection method has high requirements on weld quality, long welding time, and difficult to control construction quality. It is necessary to innovate and improve the beam-column rigid connection nodes. Utility Model Content

[0007] With the development and popularization of prefabricated buildings, the application of prefabricated beam-column joints is becoming increasingly widespread. To meet the needs of prefabricated component manufacturing efficiency and adapt to the ever-decreasing number of welding technicians, this utility model proposes a prefabricated outer ring plate connection node for H-shaped steel beams and steel columns. It can be widely used to rigidly connect H-shaped steel beams to steel tubular columns in multi-story steel structures. This node has a simple form, is easy and quick to manufacture, and has a clear force transmission path, which can meet the force transmission requirements of beam-column rigid joints.

[0008] The technical solution adopted in this utility model is:

[0009] The utility model includes a steel column, an ear plate, four H-shaped steel beams and a split outer ring plate pair. The ends of the four H-shaped steel beams are connected to the side walls of the steel column through the ear plates and the split outer ring plate pair. The split outer ring plate pair is provided on the upper and lower sides of the ear plate. The adjacent two H-shaped steel beams are overlapped and connected to the side walls of the steel column through the split outer ring plate pair.

[0010] In the H-shaped steel beam, the web of the H-shaped steel beam is fixedly connected to the side wall of the steel column via the ear plate, and the upper flange and the lower flange of the H-shaped steel beam are fixedly connected to the side wall of the steel column via their respective split outer ring plates.

[0011] The H-shaped steel beam web and the ear plate are on the same vertical plane, one end of the ear plate is fixedly connected to the H-shaped steel beam web by high-strength bolts, and the other end of the ear plate is welded to the side wall angle of the steel column.

[0012] The web and ear plates of the H-shaped steel beam are both provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt. The high-strength bolt is passed through the through holes of the web and ear plates of the H-shaped steel beam and then connected with a nut, so that the web and ear plates of the H-shaped steel beam are fixedly connected.

[0013] The upper flange of the H-shaped steel beam and the lower flange of the H-shaped steel beam are both fixedly connected to the side wall of the steel column through their respective split outer ring plates.

[0014] The split outer ring plate pair includes two split outer ring plates. For the upper flange / lower flange of the H-shaped steel beam, one end of the two split outer ring plates is respectively located on the upper and lower surfaces of the upper flange / lower flange of the H-shaped steel beam and is fixedly connected by high-strength bolts.

[0015] A split outer ring plate pair is provided between the upper flanges / lower flanges of two adjacent H-shaped steel beams, so that the upper flanges / lower flanges of the two adjacent H-shaped steel beams are connected into one piece through the split outer ring plate pair, one end of the two split outer ring plates is connected to the upper flange / lower flange of one H-shaped steel beam, and the other end of the two split outer ring plates is connected to the upper flange / lower flange of another H-shaped steel beam.

[0016] Each of the split outer ring plates is composed of two flat plates connected as one body, and the two flat plates are respectively arranged closely on the upper and lower surfaces of the upper flange of the H-shaped steel beam / the lower flange of the H-shaped steel beam, and the width of the flat plates on the surface of the upper flange of the H-shaped steel beam / the lower flange of the H-shaped steel beam gradually increases towards the direction approaching the steel column.

[0017] The width of the upper flange / lower flange of the H-shaped steel beam near one end of the steel column gradually increases towards the steel column, and the width of the end of the upper flange / lower flange of the H-shaped steel beam contacting the steel column is the same as the column width of the steel column.

[0018] The split outer ring plate and the upper flange of the H-shaped steel beam / the lower flange of the H-shaped steel beam are all provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt. The high-strength bolt is passed through the through holes of the split outer ring plate and the upper flange of the H-shaped steel beam / the lower flange of the H-shaped steel beam and then connected with a nut, so that the split outer ring plate and the upper flange of the H-shaped steel beam / the lower flange of the H-shaped steel beam are fixedly connected.

[0019] The main method of the node structure of the utility model is to weld the ear plate to the side of the steel column by fillet welding at the factory stage; and use high-strength bolts to connect the web of the H-shaped steel beam and the prefabricated ear plate on the side of the steel column during the assembly stage.

[0020] The beneficial effects of the present invention are as follows:

[0021] In the construction of prefabricated steel beam-column joints, the use of outer ring plates can replace inner or through-plates in steel columns, significantly reducing the number of welds, easing construction difficulty, and improving construction and production efficiency.

[0022] The connection contact area between the beam flange and the outer ring plate is increased, and the number of high-strength bolts is increased, so that the beam-column node area is strengthened. The structure of the enlarged beam end flange also improves the bearing capacity of the node connection area, avoids the occurrence of plastic hinges at the node, and improves the overall performance.

[0023] Because there are no partitions within the steel tube column, when using steel tube concrete columns as vertical load-bearing components, concrete pouring is very easy and unaffected, ensuring good pouring quality of the concrete within the tube. Furthermore, the steel tube column does not need to be cut, and the finished tube can be used directly, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the assembled outer ring plate connection node of H-shaped steel beam and steel column;

[0025] Figure 2 This is a schematic diagram of the prefabricated ear plate;

[0026] Figure 3 This is a schematic diagram of an H-shaped steel beam;

[0027] Figure 4 Schematic diagram of the split outer ring plate;

[0028] Figure 5 Schematic diagram of node assembly process 1;

[0029] Figure 6 This is one of the schematic diagrams of the node assembly process 2;

[0030] Figure 7 This is the second diagram of the node assembly process 2;

[0031] Figure 8This is one of the schematic diagrams of the node assembly process 3;

[0032] Figure 9 This is the second diagram of the node assembly process 3.

[0033] In the figure: 1—steel column; 2—ear plate; 3—H-shaped steel beam web; 4—H-shaped steel beam upper flange; 5—H-shaped steel beam lower flange; 6—high-strength bolts; 7—split outer ring plate. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0035] The basic structure of the assembled outer ring plate connection node of the H-shaped steel beam and the steel column of the utility model is an outer reinforcing ring connection, and a split outer ring plate 7 is used to replace the traditional through-type partition plate or inner partition plate.

[0036] like Figure 1 The figure shows the fabricated outer ring plate connection node between the H-shaped steel beam and the steel column; Figures 2 to 4 Schematic diagram of the components at the node; Figures 5 to 7 This is the process of node production and assembly (assembly process 1~3).

[0037] like Figure 1 As shown, the node structure of the present invention includes a steel column 1, an ear plate 2, four H-shaped steel beams and a split outer ring plate pair. The ends of the four H-shaped steel beams are connected to the side wall of the steel column 1 through the ear plate 2 and the split outer ring plate pair. The split outer ring plate pair is provided on the upper and lower sides of the ear plate 2. The adjacent two H-shaped steel beams are overlapped and connected to the side wall of the steel column 1 through the split outer ring plate pair.

[0038] More specifically, the node component of the present invention mainly includes: a steel pipe column 1, an ear plate 2, an H-shaped steel beam web 3, an H-shaped steel beam upper flange 4, an H-shaped steel beam lower flange 5, high-strength bolts 6 and a split outer ring plate 7.

[0039] like Figure 5 As shown, the steel column 1 is a quadrangular column, and each column surface is provided with an H-shaped steel beam, and the H-shaped steel beams are connected to the column surface of the steel column 1 through the above-mentioned ear plates 2 and the split outer ring plate pair.

[0040] Typically, an H-beam consists of an H-beam web 3, an H-beam upper flange 4, and an H-beam lower flange 5. The H-beam web 3 is fixedly connected to the side wall of the steel column 1 via lugs 2, while the H-beam upper flange 4 and the H-beam lower flange 5 are each fixedly connected to the side wall of the steel column 1 via separate outer ring plates 7.

[0041] As for the H-beam web 3, the H-beam web 3 and the lug 2 are on the same vertical plane. One end of the lug 2 is fixedly connected to the H-beam web 3 by high-strength bolts 6, and the other end of the lug 2 is welded to the side wall of the steel column 1. Furthermore, the end faces of the H-beam web 3, the H-beam upper flange 4, and the H-beam lower flange 5 all contact the side wall of the steel column 1.

[0042] like Figure 2 and Figure 3 As shown, the H-shaped steel beam web 3 and the ear plate 2 are provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt 6. The high-strength bolt 6 is passed through the through holes of the H-shaped steel beam web 3 and the ear plate 2 and then connected with a nut, so that the H-shaped steel beam web 3 and the ear plate 2 are fixedly connected.

[0043] For the H-beam flanges, split outer ring plates 7 are arranged above and below the upper and lower flanges 4 and 5 of the steel beam, and are connected to the steel beam flanges with high-strength bolts. That is, the upper flange 4 and the lower flange 5 of the H-beam are each fixedly connected to the side wall of the steel column 1 via their respective split outer ring plate pairs. Specifically, the split outer ring plate pair includes two split outer ring plates 7. For the H-beam upper flange 4 / H-beam lower flange 5, one end of the two split outer ring plates 7 is located on the upper and lower surfaces of the H-beam upper flange 4 / H-beam lower flange 5, respectively, and is fixedly connected to the H-beam upper flange 4 / H-beam lower flange 5 via high-strength bolts 6.

[0044] A pair of split outer ring plates is provided between the upper flanges 4 and lower flanges 5 of two adjacent H-beams, so that the upper flanges 4 and lower flanges 5 of the two adjacent H-beams are integrally connected via the pair of split outer ring plates. One end of the two split outer ring plates 7 is connected to the upper flange 4 and lower flange 5 of one H-beam, and the other end of the two split outer ring plates 7 is connected to the upper flange 4 and lower flange 5 of the other H-beam. That is, one end of the two split outer ring plates 7 is respectively located on the upper and lower surfaces of the upper flange 4 and lower flange 5 of one H-beam and fixedly connected thereto, while the other end of the two split outer ring plates 7 is respectively located on the upper and lower surfaces of the upper flange 4 and lower flange 5 of the other H-beam and fixedly connected thereto.

[0045] like Figure 4 As shown, each split outer ring plate 7 is composed of two flat plates connected integrally on the upper and lower surfaces of the H-beam upper flange 4 / H-beam lower flange 5. The two flat plates are respectively placed closely on the upper and lower surfaces of the H-beam upper flange 4 / H-beam lower flange 5. There is one split outer ring plate on the upper and lower sides of each flange of the beam, clamping the flange (the same treatment is applied to the upper and lower flanges of the steel beam). Because the split outer ring plate below the flange will be separated by the web plate, Figure 4The split outer ring plate is designed in this boomerang shape.

[0046] like Figure 3 As shown, the width of the flat plate on the surface of the upper flange 4 of the H-beam / the lower flange 5 of the H-beam gradually increases toward the steel column 1, and the width of each part of the upper flange 4 of the H-beam / the lower flange 5 of the H-beam is required to be smaller than the width of the corresponding flat plate on its own surface.

[0047] The width of the upper flange 4 of the H-shaped steel beam / the lower flange 5 of the H-shaped steel beam at the end close to the steel column 1 gradually increases towards the steel column 1, and the width of the end of the upper flange 4 of the H-shaped steel beam / the lower flange 5 of the H-shaped steel beam in contact with the steel column 1 is the same as the column width of the steel column 1, that is, the upper flange 4 and the lower flange 5 on the side where the H-shaped steel beam is connected to the steel column 1 need to increase the flange width (the same as the column width at the connection surface).

[0048] The split outer ring plate 7 and the upper flange 4 of the H-shaped steel beam / the lower flange 5 of the H-shaped steel beam are both provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt 6. The high-strength bolt 6 passes through the through holes of the split outer ring plate 7 and the upper flange 4 of the H-shaped steel beam / the lower flange 5 of the H-shaped steel beam and is then connected with a nut, so that the split outer ring plate 7 and the upper flange 4 of the H-shaped steel beam / the lower flange 5 of the H-shaped steel beam are fixedly connected.

[0049] The technical principle of this utility model is:

[0050] Split outer ring plates 7 are placed above and below the upper and lower flanges 4 and 5 of the steel beam. When steel beams are placed on all four sides of the steel column 1, the split outer ring plates 7 form a ring. Therefore, the axial force of the H-shaped steel beam can be transmitted through the flanges and outer ring plates to the opposite flange of the H-shaped steel beam connected to the steel column 1, completing the force transfer. Therefore, the outer ring plates of the node of this utility model can replace traditional steel pipe column through-diaphragms or inner diaphragms.

[0051] Increasing the width of the upper and lower flanges 4 and 5 of the steel beam where they connect to the steel column 1 increases the contact area between the beam flange and the split outer ring plate 7. This increases the area available for high-strength bolts and the number of bolts required. This improves the stiffness of the beam-column connection and ensures force transmission within the beam.

[0052] The structure of enlarged beam end flanges is adopted, and the bearing capacity of the node connection area is also improved. Under the action of earthquake, plastic hinges appear in the beam section far away from the node area, and the node connection part does not enter plasticity, thus meeting the seismic performance requirements of "strong node and weak component".

[0053] The specific implementation process of this utility model is as follows:

[0054] like Figure 5As shown, at the factory stage, a lug plate 2 is first welded to each column surface of the steel column 1, and the lug plate 2 is welded to the outside of the steel column 1 through a fillet weld (the component is as shown in FIG. Figure 2 shown), used to connect H-beams at the construction site.

[0055] like Figure 6 、 Figure 7 As shown, the steel column 1 is spliced with the H-shaped steel beam on site. The H-shaped steel beam is arranged on one side of the ear plate 2, 10 mm away from the steel column, so that the steel beam web 3 fits the ear plate 2 and is fixed with high-strength bolts 6. Figure 3 The figure shows a schematic diagram of an H-shaped steel beam, in which the flange width at the side connected to the steel column 1 is increased.

[0056] like Figure 8 、 Figure 9 As shown, in Figure 6 、 Figure 7 On the basis of the split outer ring plate 7, a split outer ring plate 7 is arranged. Split outer ring plates 7 are arranged on both the upper and lower sides of the flange plate surface of the upper flange 4 and lower flange 5 of the H-shaped steel beam, and are in contact with the flange plate surface. Each split outer ring plate connects two adjacent H-shaped steel beam flanges. Split outer ring plates 7 are arranged at the four corners of the steel column 1 to form a split outer ring plate 7. High-strength bolts 6 are used to securely connect the steel beam flange to the upper and lower split outer ring plates 7.

[0057] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the utility model also extends to equivalent technical means that can be thought of by those skilled in the art based on the concept of the utility model.

Claims

1. An assembled outer ring plate connection node for an H-shaped steel beam and a steel column, characterized by: The invention comprises a steel column (1), an ear plate (2), four H-shaped steel beams and a split outer ring plate pair, wherein the ends of the four H-shaped steel beams are connected to the side wall of the steel column (1) via the ear plate (2) and the split outer ring plate pair, and the split outer ring plate pair is provided on both upper and lower sides of the ear plate (2), and two adjacent H-shaped steel beams are connected to the side wall of the steel column (1) via the split outer ring plate pair.

2. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 1, characterized in that: In the H-shaped steel beam, the H-shaped steel beam web (3) is fixedly connected to the side wall of the steel column (1) via the ear plate (2), and the H-shaped steel beam upper flange (4) and the H-shaped steel beam lower flange (5) are fixedly connected to the side wall of the steel column (1) via their respective split outer ring plates (7).

3. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 2, characterized in that: The H-shaped steel beam web (3) and the ear plate (2) are on the same vertical plane, one end of the ear plate (2) is fixedly connected to the H-shaped steel beam web (3) by a high-strength bolt (6), and the other end of the ear plate (2) is welded to the side wall angle of the steel column (1).

4. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 3, characterized in that: The H-shaped steel beam web (3) and the ear plate (2) are both provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt (6). The high-strength bolt (6) is passed through the through holes of the H-shaped steel beam web (3) and the ear plate (2) and then connected with a nut, so that the H-shaped steel beam web (3) and the ear plate (2) are fixedly connected.

5. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 2, characterized in that: The upper flange (4) of the H-shaped steel beam and the lower flange (5) of the H-shaped steel beam are both fixedly connected to the side wall of the steel column (1) via their respective split outer ring plate pairs.

6. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 1 or 5, characterized in that: The split outer ring plate pair includes two split outer ring plates (7). For the upper flange (4) of the H-shaped steel beam / the lower flange (5) of the H-shaped steel beam, one end of the two split outer ring plates (7) is respectively located on the upper and lower surfaces of the upper flange (4) of the H-shaped steel beam / the lower flange (5) of the H-shaped steel beam and is fixedly connected by high-strength bolts (6).

7. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 5, characterized in that: A split outer ring plate pair is provided between the H-shaped steel beam upper flange (4) / H-shaped steel beam lower flange (5) of two adjacent H-shaped steel beams, so that the H-shaped steel beam upper flange (4) / H-shaped steel beam lower flange (5) of the two adjacent H-shaped steel beams are connected into one piece through the split outer ring plate pair, one end of the two split outer ring plates (7) is connected to the H-shaped steel beam upper flange (4) / H-shaped steel beam lower flange (5) of one H-shaped steel beam, and the other end of the two split outer ring plates (7) is connected to the H-shaped steel beam upper flange (4) / H-shaped steel beam lower flange (5) of another H-shaped steel beam.

8. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 7, characterized in that: Each of the split outer ring plates (7) is composed of two flat plates connected as one piece. The two flat plates are respectively arranged closely on the upper and lower surfaces of the upper flange (4) / lower flange (5) of the H-shaped steel beam. The width of the flat plates on the surface of the upper flange (4) / lower flange (5) of the H-shaped steel beam gradually increases in the direction approaching the steel column (1).

9. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 8, characterized in that: The width of the upper flange (4) / lower flange (5) of the H-shaped steel beam at one end close to the steel column (1) gradually increases in the direction close to the steel column (1), and the width of the end of the upper flange (4) / lower flange (5) of the H-shaped steel beam in contact with the steel column (1) is the same as the column width of the steel column (1).

10. The assembled outer ring plate connection node of an H-shaped steel beam and a steel column according to claim 6, characterized in that: The split outer ring plate (7) and the upper flange (4) of the H-shaped steel beam / the lower flange (5) of the H-shaped steel beam are both provided with a plurality of through holes evenly distributed in an array, and each through hole is installed with a high-strength bolt (6). The high-strength bolt (6) is passed through the through holes of the split outer ring plate (7) and the upper flange (4) of the H-shaped steel beam / the lower flange (5) of the H-shaped steel beam and then connected with a nut, so that the split outer ring plate (7) and the upper flange (4) of the H-shaped steel beam / the lower flange (5) of the H-shaped steel beam are fixedly connected.

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