Square steel tube concrete beam column end plate type connecting joint

Abstract

The utility model discloses a square steel tube concrete beam column end plate type connecting joint which solves the technical problem that a steel tube column wall in a core area of a steel tube concrete end plate type connecting joint in the prior art is prone to bulging deformation due to the action of bolt tension. The connecting structure comprises a steel pipe column and a steel beam, and further comprises a connecting mechanism, the connecting mechanism comprises a connecting piece welded to the steel pipe column and an end plate welded to the end of the steel beam, and the connecting piece is connected with the end plate through a plurality of friction type high-strength bolts. The connecting piece is simple in structure and scientific and reasonable in design, connection of the steel pipe concrete beam column end plate type joints is indirectly achieved through the connecting piece, and the situation that the whole bearing capacity is reduced due to the fact that the steel pipe column wall is affected by bolts can be effectively avoided. Meanwhile, rib plates are arranged in the connecting pieces to enhance supporting, the strength of the connecting pieces is guaranteed, and force transmission is facilitated. After the connecting piece and the column wall are welded, a large amount of unoccupied space is formed, vertical pipeline routing is facilitated, and it can be effectively avoided that holes are formed in components in the later period.

Description

Technical Field

[0001] The utility model belongs to the technical field of building structure engineering, and specifically relates to a square steel tube concrete beam-column end plate type connection node. Background Art

[0002] Steel tube concrete is to pour concrete into steel tubes and tamp them to increase the strength and rigidity of the steel tubes. Generally, we call steel tube concrete with a concrete strength grade below C50 ordinary steel tube concrete; steel tube concrete with a concrete strength grade above C50 high-strength steel tube concrete; and steel tube concrete with a concrete strength grade above C100 ultra-high-strength steel tube concrete.

[0003] Steel tube concrete refers to a structural component formed by filling concrete in a steel tube, and the steel tube and its core concrete can jointly withstand external loads. According to different cross-sectional shapes, it can be divided into circular steel tube concrete, square and rectangular steel tube concrete, and polygonal steel tube concrete.

[0004] Steel tube concrete end plate connection nodes are widely used because of their simple structure and convenient construction. However, under the condition of a certain load, the steel tube column wall in the core area of ​​the traditional steel tube concrete end plate connection node will bend and deform due to the tension of the bolts, which will greatly affect the bearing capacity of the steel tube concrete structural components. my country is a country prone to earthquakes, and the beam-column connection node is the key to affecting the mechanical properties of the frame. Under the action of earthquakes, the existing steel tube concrete end plate connection nodes have a technical problem that the steel tube column wall in the core area of ​​the node is prone to bend and deform due to the tension of the bolts.

[0005] Therefore, designing a square steel tube concrete beam-column end plate connection node to overcome the technical problem that the steel tube column wall in the core area of ​​the traditional steel tube concrete end plate connection node is prone to bulging and deformation due to the tension of bolts under the action of earthquakes, has become a technical problem that needs to be urgently solved by technicians in the relevant technical field. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a square steel tube concrete beam-column end plate connection node, which solves the technical problem that the steel tube column wall in the core area of ​​the existing steel tube concrete end plate connection node is prone to bulging and deformation due to the tension of the bolts.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A square steel tube concrete beam-column end plate connection node comprises a steel tube column and a steel beam, and also comprises a connection mechanism, wherein the connection mechanism comprises a connection piece welded on the steel tube column and an end plate welded to the end of the steel beam, and the connection piece and the end plate are connected by a plurality of friction-type high-strength bolts.

[0009] Furthermore, the connecting piece includes a channel steel and a rib plate welded in a notch of the channel steel, and the rib plate and two legs of the channel steel are respectively welded to the steel pipe column.

[0010] Furthermore, a threaded hole A compatible with the friction type high-strength bolt is opened on the waist plate of the channel steel, and a threaded hole B compatible with the friction type high-strength bolt and corresponding to the threaded hole A is opened on the end plate. The friction type high-strength bolt is passed through the corresponding threaded hole A and threaded hole B to fix the connecting piece and the end plate.

[0011] Furthermore, the steel beam includes two flange plates distributed in parallel and a web plate connected between the two flange plates, and an arc-shaped groove is provided on the flange plate.

[0012] Furthermore, the distance between the arc-shaped groove and the end plate is equal to the length of the channel steel.

[0013] Furthermore, the steel pipe column includes a square steel pipe welded to a connecting piece, and a reinforcing mechanism disposed in the square steel pipe and corresponding to the connecting piece.

[0014] Furthermore, the reinforcing mechanism comprises two inner baffles welded in the square steel tube, and the elevations of the two inner baffles are respectively consistent with the top and bottom of the channel steel.

[0015] Furthermore, a square partition hole is provided on the inner partition.

[0016] Furthermore, the inner partition is perpendicular to the wall of the square steel tube, the rib plate is parallel to the two legs of the channel steel, the rib plate is perpendicular to the wall of the square steel tube, and the waist plate of the channel steel is parallel to the inner partition.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a simple structure and a scientific and reasonable design. The connection of the steel tube concrete beam-column end plate node is indirectly realized through the connector, which can effectively prevent the steel tube column wall from being affected by the bolts and thus reducing the overall bearing capacity. At the same time, ribs are provided in the connector to enhance support, which not only ensures its own strength but also helps to transmit force. After the connector is welded to the column wall, there is a large amount of free space, which is helpful for the routing of vertical pipelines and can effectively avoid opening holes in the components at a later stage.

[0019] The utility model sets an inner partition in the steel pipe column, which effectively improves the stability of the steel pipe column; the steel beam adopts a dog-bone flange (the flange plate is provided with an arc groove), which can effectively weaken the beam end, thereby realizing the outward movement of the plastic hinge. The above design can effectively achieve the design purpose of "strong column and weak beam" and "strong node and weak member".

[0020] Each component in the utility model can be prefabricated in a factory, which can greatly speed up the progress of on-site construction and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model.

[0022] Figure 2 This is an exploded view of the utility model.

[0023] Figure 3 It is the front view of the utility model.

[0024] Figure 4 It is a top view of the utility model.

[0025] Figure 5 It is a side view of the utility model.

[0026] The names corresponding to the reference numerals are:

[0027] 1-steel pipe column, 2-connecting parts, 3-steel beam, 4-end plate, 5-friction type high-strength bolts, 11-square steel pipe, 12-inner partition, 13-partition hole, 21-channel steel, 22-rib plate, 23-threaded hole A, 31-flange plate, 32-web plate, 33-arc groove, 41-threaded hole B. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Example 1.

[0030] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0031] The utility model has a simple structure and a scientific and reasonable design. The connection of the steel tube concrete beam-column end plate node is indirectly realized through the connector, which can effectively prevent the steel tube column wall from being affected by the bolts and thus reducing the overall bearing capacity. At the same time, ribs are provided in the connector to enhance support, which not only ensures its own strength but also helps to transmit force. After the connector is welded to the column wall, there is a large amount of free space, which is helpful for the routing of vertical pipelines and can effectively avoid opening holes in the components at a later stage.

[0032] Example 2.

[0033] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0034] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0035] The utility model sets an inner partition in the steel pipe column, which effectively improves the stability of the steel pipe column; the steel beam adopts a dog-bone flange (the flange plate is provided with an arc groove), which can effectively weaken the beam end, thereby realizing the outward movement of the plastic hinge. The above design can effectively achieve the design purpose of "strong column and weak beam" and "strong node and weak member".

[0036] Example 3.

[0037] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0038] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0039] A threaded hole A23 compatible with the friction type high-strength bolt 5 is opened on the waist plate of the channel steel 21, and a threaded hole B41 compatible with the friction type high-strength bolt 5 and corresponding to the threaded hole A23 is opened on the end plate 4. The friction type high-strength bolt 5 is fixedly connected to the connecting piece 2 and the end plate 4 by passing through the corresponding threaded hole A23 and the threaded hole B41.

[0040] Based on Example 2, this Example 3 provides a more preferred connection structure between the connector 2 and the end plate 4. Specifically, the waist plate of the channel steel 21 is provided with a threaded hole A23 that matches the friction type high-strength bolt 5, and the end plate 4 is provided with a threaded hole B41 that matches the friction type high-strength bolt 5 and corresponds to the threaded hole A23. The friction type high-strength bolt 5 is inserted into the corresponding threaded hole A23 and threaded hole B41 to fix the connector 2 and the end plate 4. The threaded holes A23, threaded holes B41 and friction type high-strength bolts 5 are the same in number and correspond to each other, so the connection is very firm and the assembly is very convenient.

[0041] Example 4.

[0042] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0043] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0044] A threaded hole A23 compatible with the friction type high-strength bolt 5 is opened on the waist plate of the channel steel 21, and a threaded hole B41 compatible with the friction type high-strength bolt 5 and corresponding to the threaded hole A23 is opened on the end plate 4. The friction type high-strength bolt 5 is fixedly connected to the connecting piece 2 and the end plate 4 by passing through the corresponding threaded hole A23 and the threaded hole B41.

[0045] The steel beam 3 includes two flange plates 31 distributed in parallel and a web plate 32 connected between the two flange plates 31 . An arc-shaped groove 33 is formed on the flange plate 31 .

[0046] The utility model sets an inner partition in the steel pipe column, which effectively improves the stability of the steel pipe column; the steel beam adopts a dog-bone flange (the flange plate is provided with an arc groove), which can effectively weaken the beam end, thereby realizing the outward movement of the plastic hinge. The above design can effectively achieve the design purpose of "strong column and weak beam" and "strong node and weak member".

[0047] Example 5.

[0048] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0049] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0050] A threaded hole A23 compatible with the friction type high-strength bolt 5 is opened on the waist plate of the channel steel 21, and a threaded hole B41 compatible with the friction type high-strength bolt 5 and corresponding to the threaded hole A23 is opened on the end plate 4. The friction type high-strength bolt 5 is fixedly connected to the connecting piece 2 and the end plate 4 by passing through the corresponding threaded hole A23 and the threaded hole B41.

[0051] The steel beam 3 includes two flange plates 31 distributed in parallel and a web plate 32 connected between the two flange plates 31 . An arc-shaped groove 33 is formed on the flange plate 31 .

[0052] The distance between the arc groove 33 and the end plate 4 is equal to the length of the channel steel 21 .

[0053] Based on Example 4, this Example 5 provides a more preferred structure of the flange plate 31. Specifically, the distance between the arc groove 33 and the end plate 4 is equal to the length of the channel steel 21. The above design can effectively achieve the design objectives of "strong column and weak beam" and "strong node and weak member".

[0054] Example 6.

[0055] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0056] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0057] The steel pipe column 1 includes a square steel pipe 11 welded to a connecting piece 2 , and a reinforcing mechanism disposed in the square steel pipe 11 and corresponding to the connecting piece 2 .

[0058] Based on Example 2, this Example 6 provides a more preferred structure of the steel pipe column 1. Specifically, the steel pipe column 1 includes a square steel pipe 11 welded to the connector 2, and a reinforcing mechanism disposed in the square steel pipe 11 and corresponding to the connector 2. The reinforcing mechanism can effectively increase the strength of the connection between the square steel pipe 11 and the connector 2 to ensure the overall structural strength.

[0059] Example 7.

[0060] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0061] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0062] The steel pipe column 1 includes a square steel pipe 11 welded to a connecting piece 2 , and a reinforcing mechanism disposed in the square steel pipe 11 and corresponding to the connecting piece 2 .

[0063] The reinforcement mechanism includes two inner baffles 12 welded inside the square steel tube 11 , and the elevations of the two inner baffles 12 are respectively consistent with the top and bottom of the channel steel 21 .

[0064] Based on Example 6, this Example 7 provides a more preferred structure of the reinforcement mechanism. Specifically, the reinforcement mechanism includes two inner baffles 12 welded inside the square steel tube 11, and the elevations of the two inner baffles 12 are respectively consistent with the top and bottom of the channel steel 21. The above design has a simple structure, convenient construction, and high strength.

[0065] Example 8.

[0066] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0067] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0068] The steel pipe column 1 includes a square steel pipe 11 welded to a connecting piece 2 , and a reinforcing mechanism disposed in the square steel pipe 11 and corresponding to the connecting piece 2 .

[0069] The reinforcement mechanism includes two inner baffles 12 welded inside the square steel tube 11 , and the elevations of the two inner baffles 12 are respectively consistent with the top and bottom of the channel steel 21 .

[0070] The inner partition plate 12 is provided with a square partition plate hole 13 .

[0071] Based on Example 7, this Example 8 provides a more preferred structure of the inner partition 12. Specifically, a square partition hole 13 is opened on the inner partition 12. The above design has a simple structure, convenient construction, high strength, and the partition hole 13 is convenient for injecting cement into the square steel pipe 11.

[0072] Example 9.

[0073] like Figure 1-5As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1 and a steel beam 3, and also includes a connection mechanism, the connection mechanism includes a connection member 2 welded to the steel tube column 1, and an end plate 4 welded to the end of the steel beam 3, the connection member 2 and the end plate 4 are connected by a plurality of friction-type high-strength bolts 5.

[0074] The connecting member 2 includes a channel steel 21 and a rib plate 22 welded in a notch of the channel steel 21 . The rib plate 22 and two legs of the channel steel 21 are respectively welded to the steel pipe column 1 .

[0075] The steel pipe column 1 includes a square steel pipe 11 welded to a connecting piece 2 , and a reinforcing mechanism disposed in the square steel pipe 11 and corresponding to the connecting piece 2 .

[0076] The reinforcement mechanism includes two inner baffles 12 welded inside the square steel tube 11 , and the elevations of the two inner baffles 12 are respectively consistent with the top and bottom of the channel steel 21 .

[0077] The inner partition 12 is perpendicular to the wall of the square steel tube 11 , the rib plate 22 is parallel to the two legs of the channel steel 21 , the rib plate 22 is perpendicular to the wall of the square steel tube 11 , and the waist plate of the channel steel 21 is parallel to the inner partition 12 .

[0078] Based on Example 7, this Example 9 provides a more preferred structure of the square steel tube concrete beam-column end plate connection node. Specifically, the inner partition 12 is perpendicular to the wall of the square steel tube 11, the rib plate 22 is parallel to the two legs of the channel steel 21, the rib plate 22 is perpendicular to the wall of the square steel tube 11, and the waist plate of the channel steel 21 is parallel to the inner partition 12. The above design has a simple structure, convenient construction, and high strength.

[0079] like Figure 1-5 As shown, the utility model provides a square steel tube concrete beam-column end plate connection node, including a steel tube column 1, a connector 2 and a steel beam 3, the steel tube column 1 includes a square steel tube 11, two inner partitions 12 are welded inside the square steel tube 11, and a partition hole 13 is opened in the center of the inner partition 12, the connector 2 is welded by a channel steel 21 and a rib plate 22, the connector 2 is welded at the center of the outer surface of the middle part of the square steel tube 11, the steel beam 3 is welded by a dog-bone flange and a web 32, the end of the steel beam 3 is welded to the end plate 4 as a whole, and the end plate 4 and the connector 2 are connected to the beam-column node by a friction-type high-strength bolt 5.

[0080] like Figure 1 , Figure 2 As shown, the connecting member 2 is provided with threaded holes A23 , and the number, position and size of the threaded holes A23 correspond to those of the threaded holes B41 provided on the end plate 4 .

[0081] like Figure 1 , Figure 2As shown, the connector 2 is welded by a channel steel 21 and a rib plate 22. Due to the support of the rib plate 22, the strength of the connector 2 itself can be greatly improved. The use of the connector 2 as a transition between the beam and the column can effectively avoid the direct connection between the friction type high-strength bolt 5 and the square steel pipe 11, and prevent the square steel pipe 11 from losing part of its bearing capacity due to the tension of the friction type high-strength bolt 5 during the force-bearing process. In addition, there is a lot of free space after the connector 2 is welded to the column wall, which is helpful for the routing of vertical pipelines and avoids opening holes in the components at a later stage.

[0082] like Figure 1 , Figure 2 As shown, the steel pipe column 1 includes a square steel pipe 11, in which two inner partitions 12 are welded, and a partition hole 13 is opened in the center of the inner partition 12. Due to the existence of the inner partition 12, the overall strength of the steel pipe column 1 is improved, avoiding serious buckling deformation of the square steel pipe 11 during the stress process.

[0083] like Figure 1 , Figure 2 As shown, the steel beam 3 is welded by a dog-bone flange and a web 32. The dog-bone flange is used to weaken the cross-sectional stiffness at a certain distance from the beam end, thereby achieving the outward movement of the plastic hinge. The use of both the inner partition and the dog-bone flange in the structure can achieve the design goals of "strong column and weak beam" and "strong node and weak member", thereby enhancing the stability of the node.

[0084] The utility model has a simple structure and a scientific and reasonable design. The connection of the steel tube concrete beam-column end plate node is indirectly realized through the connector, which can effectively prevent the steel tube column wall from being affected by the bolts and thus reducing the overall bearing capacity. At the same time, ribs are provided in the connector to enhance support, which not only ensures its own strength but also helps to transmit force. After the connector is welded to the column wall, there is a large amount of free space, which is helpful for the routing of vertical pipelines and can effectively avoid opening holes in the components at a later stage.

[0085] The utility model sets an inner partition in the steel pipe column, which effectively improves the stability of the steel pipe column; the steel beam adopts a dog-bone flange (the flange plate is provided with an arc groove), which can effectively weaken the beam end, thereby realizing the outward movement of the plastic hinge. The above design can effectively achieve the design purpose of "strong column and weak beam" and "strong node and weak member".

[0086] Each component in the utility model can be prefabricated in a factory, which can greatly speed up the progress of on-site construction and is easy to install.

[0087] Finally, it should be noted that the above embodiments are only preferred embodiments of the utility model to illustrate the technical solution of the utility model, but not to limit it, and certainly not to limit the patent scope of the utility model. Any changes or modifications that have no substantial significance on the main design concept and spirit of the utility model, which solve technical problems consistent with the utility model, should be included in the protection scope of the utility model; in addition, the direct or indirect application of the technical solution of the utility model in other related technical fields should also be included in the patent protection scope of the utility model.

Claims

1. A square steel tube concrete beam-column end plate connection node, comprising a steel tube column (1) and a steel beam (3), characterized in that: It also includes a connection mechanism, which includes a connection piece (2) welded to the steel pipe column (1), and an end plate (4) welded to the end of the steel beam (3), and the connection piece (2) and the end plate (4) are connected by a plurality of friction-type high-strength bolts (5); The connecting piece (2) comprises a channel steel (21) and a rib plate (22) welded in a notch of the channel steel (21); the rib plate (22) and two legs of the channel steel (21) are respectively welded to the steel pipe column (1).

2. The square steel tube concrete beam-column end plate connection node according to claim 1, characterized in that: The waist plate of the channel steel (21) is provided with a threaded hole A (23) adapted to the friction type high-strength bolt (5), and the end plate (4) is provided with a threaded hole B (41) adapted to the friction type high-strength bolt (5) and corresponding to the threaded hole A (23). The friction type high-strength bolt (5) is inserted into the corresponding threaded hole A (23) and the threaded hole B (41) to fix the connection piece (2) and the end plate (4).

3. The square steel tube concrete beam-column end plate connection node according to claim 1, characterized in that: The steel beam (3) comprises two flange plates (31) arranged in parallel, and a web plate (32) connected between the two flange plates (31), wherein an arc-shaped groove (33) is provided on the flange plate (31).

4. The square steel tube concrete beam-column end plate connection node according to claim 3, characterized in that: The distance between the arc-shaped groove (33) and the end plate (4) is equal to the length of the channel steel (21).

5. The square steel tube concrete beam-column end plate connection node according to claim 1, characterized in that: The steel pipe column (1) comprises a square steel pipe (11) welded to a connecting piece (2), and a reinforcing mechanism arranged in the square steel pipe (11) and corresponding to the connecting piece (2).

6. The square steel tube concrete beam-column end plate connection node according to claim 5, characterized in that: The reinforcing mechanism comprises two inner baffles (12) welded inside the square steel tube (11), and the elevations of the two inner baffles (12) are respectively consistent with the top and bottom of the channel steel (21).

7. The square steel tube concrete beam-column end plate connection node according to claim 6, characterized in that: The inner partition plate (12) is provided with a square partition plate hole (13).

8. The square steel tube concrete beam-column end plate connection node according to claim 6, characterized in that: The inner partition plate (12) is perpendicular to the wall of the square steel tube (11), the rib plate (22) is parallel to the two legs of the channel steel (21), the rib plate (22) is perpendicular to the wall of the square steel tube (11), and the waist plate of the channel steel (21) is parallel to the inner partition plate (12).

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