Novel connecting joint of steel reinforced concrete structure

Abstract

The utility model relates to the technical field of building construction, and discloses a novel connecting node of a steel reinforced concrete structure, which comprises a bracket and a steel beam, one end of the bracket is connected to a flange of a steel reinforced concrete column steel rib, and the other end of the bracket is arranged in a Z shape and forms a butt joint part for erecting the steel beam. The steel beam is erected on the butt joint part and connected with the bracket in a welded mode, and a first horizontal seam, a first vertical seam and a second vertical seam are formed in the welding position of the steel beam and the bracket; the steel reinforced concrete structure further comprises a connecting plate, and the connecting plate is arranged on one side of the bracket and the steel beam to assist the bracket and the steel beam to complete positioning. Compared with the prior art, the Z-shaped butt joint part enables the steel beam and the bracket to be positioned more easily, and construction errors are obviously reduced; a horizontal welding seam and a vertical welding seam are additionally arranged on the welding surface of the bracket and the steel beam relative to the conventional single vertical welding seam, so that the tensile capacity of the connecting position is ensured; and the two vertical welding seams are positioned at different positions, so that the shear resistance of the node is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a new type of connection node of a steel concrete structure. Background Art

[0002] Steel-concrete composite structure is a type of structure that buries steel in concrete. The addition of steel in concrete can greatly improve the bearing capacity of components. At the same time, the concrete wrapping also avoids the disadvantages of exposed steel structure in terms of corrosion and fire prevention. Steel-concrete structure has many advantages such as high bearing capacity and good seismic performance. It is generally used in large-span structures or transfer structures.

[0003] As the key part of steel-concrete structure, beam-column joints are mostly connected by full welding, full bolt connection or bolt-welding mixed connection in the form of vertical seams in the existing technology. The threads are high-strength bolts. The connection form of vertical welds has high requirements on the positioning of construction operations and is prone to errors. The use of high-strength bolts further increases the overall cost of the project. How to improve the difficulty of on-site construction positioning and control construction costs is a technical problem that urgently needs to be solved. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a new type of connection node of a steel-concrete structure, which realizes the rapid positioning of the corbel and the steel beam by setting a Z-shaped butt joint.

[0005] Based on this, the utility model provides a new type of connection node of a steel concrete structure, comprising:

[0006] A corbel, one end of which is connected to the steel concrete frame, and the other end of which is arranged in a Z shape to form a butt joint for the steel beam to be erected;

[0007] A steel beam, one end of which is placed on the butt joint of the corbel and is welded to the corbel, and a first horizontal seam, a first vertical seam and a second vertical seam are formed at the welding position between the steel beam and the corbel;

[0008] A connecting plate is connected to the corbel and can be connected to the steel beam.

[0009] In some embodiments of the present application, the length of the first horizontal seam is 200-300 mm.

[0010] In some embodiments of the present application, the connecting plates are arranged in pairs on both sides of the corbel and the steel beam.

[0011] In some embodiments of the present application, the connecting plate covers the first horizontal seam.

[0012] In some embodiments of the present application, connecting bolts are provided on the connecting plate.

[0013] In some embodiments of the present application, there are multiple connecting bolts, and the connecting bolts are arranged in sequence around the circumference of the connecting plate.

[0014] The embodiment of the utility model provides a new type of connection node of a steel-concrete structure, which has the following beneficial effects compared with the prior art:

[0015] The utility model provides a steel-concrete structure, comprising a steel-concrete column, a steel-concrete steel frame, a corbel and a steel beam, wherein the steel-concrete steel frame is arranged in the steel-concrete column and horizontally extends out of the steel-concrete column, one end of the corbel is connected to the flange of the steel frame of the steel-concrete column, and the connection is completed in a factory, the other end of the corbel is arranged in a Z shape and forms a butt joint for the steel beam to be erected, the steel beam is erected on the butt joint and is welded to the corbel, and the welding position of the steel beam and the corbel forms a first horizontal seam, a first vertical seam and a second vertical seam; further, the steel-concrete structure also includes a connecting plate, which is arranged on one side of the corbel or the steel beam and can be connected to the other of the two. Based on the above structure, the Z-shaped butt joint forms a snap-fit ​​structure between the corbel and the steel beam, which makes it easier to position the steel beam and the corbel, and can significantly reduce construction errors. Furthermore, the corbel and the steel beam are welded at the butt joint, and a horizontal weld is added to the welding surface compared to the previous single vertical weld, thereby ensuring the tensile strength of the connection position. At the same time, the Z-shaped butt joint divides the original single vertical weld into two vertical welds. Since the two vertical welds are located at different positions, the weak point of the node is avoided from appearing on the same steel beam section, thereby ensuring the shear resistance of the node and improving the reliability of the node. In addition, the setting of the connecting plate can assist in positioning the corbel and the steel beam, ensuring that the two are connected quickly and accurately, thereby reducing the difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of steel-concrete structure of some embodiments of the utility model;

[0017] Figure 2 for Figure 1 AA section diagram in .

[0018] In the figure, 1. steel-concrete column; 2. steel-concrete steel frame; 3. corbel; 4. steel beam; 5. connecting plate; 6. first horizontal seam; 7. first vertical seam; 8. second vertical seam; 9. connecting bolts. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] It should be understood that the terms "front", "rear", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "front" information may also be referred to as "rear" information, and "rear" information may also be referred to as "front" information without departing from the scope of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the utility model provides a steel-concrete structure, including a steel-concrete column 1, a steel-concrete steel frame 2, a corbel 3 and a steel beam 4, wherein the steel-concrete steel frame 2 is arranged in the steel-concrete column 1 and horizontally extends out of the steel-concrete column 1, one end of the corbel 3 is connected to the flange of the steel frame of the steel-concrete column 1, and the connection is completed in the factory, the other end of the corbel 3 is arranged in a Z shape and forms a docking portion for the steel beam 4 to be erected, the steel beam 4 is erected on the docking portion and welded to the corbel 3, and the welding portion between the steel beam 4 and the corbel 3 forms a first horizontal seam 6, a first vertical seam 7 and a second vertical seam 8; further, the steel-concrete structure also includes a connecting plate 5, which is connected to the corbel 3 and can be connected to the steel beam 4.

[0022] Based on the above structure, the Z-shaped butt joint forms a snap-fit ​​structure between the corbel 3 and the steel beam 4, which makes it easier to position the steel beam 4 and the corbel 3, and can significantly reduce construction errors; further, the corbel 3 and the steel beam 4 are welded together at the butt joint, and a horizontal weld is added to the welding surface compared to the previous single vertical weld, thereby ensuring the tensile strength of the connection position. At the same time, the Z-shaped butt joint divides the original single vertical weld into two vertical welds. Since the two vertical welds are located at different positions, the situation in which the weak point of the node appears in the same section of the steel beam 4 is avoided, thereby ensuring the shear resistance of the node and improving the reliability of the node; in addition, the setting of the connecting plate 5 can assist in positioning the connection between the corbel 3 and the steel beam 4, thereby ensuring that the two are accurately and effectively connected, thereby reducing the difficulty of construction.

[0023] Optionally, in some embodiments of the present application, the length of the first horizontal seam 6 is 200-300 mm.

[0024] Furthermore, in order to strengthen the connection effect between the connecting plate 5 and the corbel 3 and the steel beam 4, in some embodiments of the present application, the connecting plate 5 is provided with a connecting bolt 9, and it can be found that a plurality of connecting bolts 9 can be provided, and in this case, each connecting bolt 9 is sequentially arranged around the circumference of the connecting plate 5. Correspondingly, when the cross-section of the steel beam is small, the connecting plate 5 and the connecting bolt 9 and other structures can also be abandoned to directly connect the corbel 3 and the steel beam 4.

[0025] In summary, the utility model provides a new type of connection node of a steel-concrete structure, including a corbel and a steel beam, wherein one end of the corbel is connected to the flange of the steel frame of the steel-concrete column, the other end of the corbel is arranged in a Z shape and forms a docking portion for the steel beam to be erected, the steel beam is erected on the docking portion and welded to the corbel, and the welding portion between the steel beam and the corbel forms a first horizontal seam, a first vertical seam, and a second vertical seam; the steel-concrete structure also includes a connecting plate, which is connected to the corbel and can be connected to the steel beam. Compared with the prior art, the Z-shaped docking portion makes it easier to position the steel beam and the corbel, significantly reducing the construction error; the welding surface of the corbel and the steel beam has an additional horizontal weld and a vertical weld compared to the previous single vertical weld, which ensures the tensile strength of the connection position; and because the two vertical welds are located at different positions, the shear resistance of the node is ensured.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A new type of connection node for steel-concrete structure, characterized in that: include: A corbel (3), one end of which is connected to the steel concrete frame (2), and the other end of which is arranged in a Z shape to form a butt joint for the steel beam (4) to be erected; A steel beam (4), one end of the steel beam (4) being placed on the butt joint of the corbel (3) and welded to the corbel (3), wherein a first horizontal seam (6), a first vertical seam (7) and a second vertical seam (8) are formed at the welding point between the steel beam (4) and the corbel (3); A connecting plate (5), wherein the connecting plate (5) is connected to the corbel (3) and can be connected to the steel beam (4).

2. The new connection node of steel-concrete structure according to claim 1 is characterized in that: The length of the first horizontal slit (6) is 200-300 mm.

3. The new connection node of steel-concrete structure according to claim 2 is characterized in that: The connecting plate (5) covers the first horizontal seam (6).

4. The new connection node of steel-concrete structure according to claim 3 is characterized in that: The connecting plate (5) is provided with connecting bolts (9).

5. The new connection node of steel concrete structure according to claim 4 is characterized in that: A plurality of the connecting bolts (9) are provided, and the connecting bolts (9) are arranged in sequence around the circumference of the connecting plate (5).

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