Connecting structure for main beam end part and secondary beam of steel structure

Abstract

The utility model discloses a steel structure main beam end and secondary beam connecting structure which comprises a connecting piece fixedly connected to the right side of a steel structure beam, a branch beam is arranged on the right side of the connecting piece, first assembling plates are arranged on the front faces and the back faces of the connecting piece and the branch beam respectively, two rows of symmetrical fixing bolts are arranged on the front faces of the first assembling plates in a penetrating mode, and the two rows of symmetrical fixing bolts are arranged on the back faces of the first assembling plates respectively. The two rows of fixing bolts penetrate through the connecting pieces, the supporting beams and the assembling plates and are in threaded connection with nuts. The supporting frame is placed on the right side of the steel structure beam, then the base plate is arranged on the top of the supporting frame in a cushioned mode, finally the second assembling plate is placed on the top of the connecting position of the connecting piece and the supporting beam, and the supporting frame, the base plate and the second assembling plate are fixed through the fixing bolts. Therefore, the purposes of improving the strength and rigidity of the joint of the end part of the steel structure main beam and the secondary beam through the reinforcing structure, avoiding fatigue cracks at the joint of the end part of the steel structure main beam and the secondary beam and prolonging the service life of the connecting structure can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure technology, and in particular relates to a connection structure between the end of a main beam and a secondary beam in a steel structure. Background Technology

[0002] The connection between the main beams and secondary beams in a steel structure is a key link in improving structural safety and construction efficiency in steel structure buildings. According to the connection method, it can be divided into simply supported connection and rigid connection. The main process is as follows: preparation, positioning and layout, installation of connecting plates, placement of secondary beams, welding or bolting, inspection and acceptance, etc. Rigid connection enables the main beams and secondary beams to work together to form an integrated spatial structural system, effectively improving the overall stiffness of the structure. When bearing loads, the deformation of the structure is smaller, and it can better maintain its geometric shape and stability.

[0003] During the long-term use of steel structures, the steel structure is subjected to repeated loads, and fatigue damage is prone to occur at its connection points. Therefore, a connection structure between the ends of the main beams and the secondary beams of the steel structure is needed. By strengthening the structure, the strength and stiffness of the connection between the ends of the main beams and the secondary beams of the steel structure can be improved, fatigue cracks can be avoided at the connection points, and the service life of the connection structure can be increased. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between the end of the main beam and the secondary beam of a steel structure, which can improve the strength and stiffness of the connection between the end of the main beam and the secondary beam by strengthening the structure, avoid fatigue cracks at the connection between the end of the main beam and the secondary beam, and improve the service life of the connection structure, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A connection structure between the end of a main beam and a secondary beam of a steel structure includes a connector fixedly connected to the right side of the steel beam. A support beam is provided on the right side of the connector. Assembly plates are provided on the front and back of the connector and the support beam. Two rows of symmetrical fixing bolts are provided through the front of the assembly plate. The two rows of fixing bolts pass through the connector, the support beam and the assembly plate and are threaded with nuts. An assembly assembly is provided on the top of the steel beam and the support beam. A support frame is provided on the right side of the steel beam. Four symmetrical fixing bolts are provided at the bottom of the inner cavity of the support frame. The fixing bolts pass through to the bottom of the steel beam and are threaded with nuts. A pad is provided on the top of the support frame. The top of the pad fits against the bottom of the connector and the support beam. Two symmetrical assembly plates are provided at the bottom of the inner cavity of the connector and the support beam. Four symmetrical fixing bolts are provided through the top of the assembly plates. The fixing bolts pass through the connector, the support beam, the pad and the support frame and are threaded with nuts.

[0006] Preferably, the assembly includes a mounting plate one fixed to the top of the steel beam by fixing bolts, a mounting plate two fixed to the top of the connector by fixing bolts, two symmetrical connecting bolts through the right side of the mounting plate two, and the left end of the connecting bolts through the mounting plate one and threaded with a nut.

[0007] Preferably, a triangular plate is fixedly installed at the bottom of the support beam by bolts, the left side of the limiting frame is in contact with the right side of the support frame, and two symmetrical triangular plates are fixedly connected to the bottom of the limiting frame.

[0008] Preferably, the connector has two symmetrical side support plates fixedly connected to both its front and back sides, and the side support plates are trapezoidal.

[0009] Preferably, the support frame is I-shaped, and two symmetrical reinforcing plates are fixedly connected to the front and back of the inner cavity of the support frame.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model places the support frame on the right side of the steel beam, places the pad on top of the support frame, and finally places the assembly plate on top of the connection between the connector and the support beam. The support frame, pad, and assembly plate are then fixed with bolts. This achieves the purpose of improving the strength and rigidity of the connection between the end of the main beam and the secondary beam of the steel structure through the reinforcement structure, avoiding fatigue cracks at the connection between the end of the main beam and the secondary beam, and improving the service life of the connection structure.

[0012] 2. By setting up a limiting frame, this utility model limits the support frame when it is located below the connection between the connector and the support beam, preventing the support frame from shifting below the connection between the connector and the support beam, thus ensuring the stability of the support frame on the right side of the steel beam. Attached Figure Description

[0013] in:

[0014] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional disassembled schematic diagram of one embodiment of the present utility model;

[0016] Figure 3 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle;

[0017] Figure 4 This is one embodiment of the present utility model. Figure 2 A magnified view of point B in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Steel beam, 2. Connector, 3. Support beam, 4. Assembly plate one, 5. Fixing bolt, 6. Assembly component, 61. Mounting plate one, 62. Mounting plate two, 63. Connecting bolt, 7. Support frame, 8. Pad, 9. Assembly plate two, 10. Limiting frame, 11. Triangular plate, 12. Side support plate. Detailed Implementation

[0020] In the following description, embodiments of the connection structure between the end of the main beam and the secondary beam of the present invention will be described with reference to the accompanying drawings. Example 1

[0021] Figure 1-4 This invention illustrates a connection structure between the end of a main steel beam and a secondary beam according to an embodiment of the present invention. It includes a connector 2 fixedly connected to the right side of the steel beam 1. A support beam 3 is provided on the right side of the connector 2. A triangular plate 11 is fixedly installed at the bottom of the support beam 3 by bolts. The left side of a limiting frame 10 is abutted against the right side of a support frame 7. Two symmetrical triangular plates 11 are fixedly connected to the bottom of the limiting frame 10. By setting the limiting frame 10, when the support frame 7 is located below the connection between the connector 2 and the support beam 3, the limiting frame 10 will limit the support frame 7, preventing it from shifting below the connection between the connector 2 and the support beam 3, thus ensuring the stability of the support frame 7 on the right side of the steel beam 1. Assembly plates 4 are provided on the front and back of both the connector 2 and the support beam 3. Two rows of symmetrical fixing bolts 5 are provided through the front of the assembly plate 4. The two rows of fixing bolts 5 pass through the connector 2, the support beam 3, and the assembly plate 4 and are threaded with nuts. The top of the support beam 3 is equipped with an assembly component 6, which includes a mounting plate 61 fixed to the top of the steel beam 1 by fixing bolts 5. The top of the connector 2 is fixed with a mounting plate 62 by fixing bolts 5. Two symmetrical connecting bolts 63 are provided through the right side of the mounting plate 62. The left end of the connecting bolts 63 passes through the mounting plate 61 and is threaded with a nut. The right side of the steel beam 1 is equipped with a support frame 7. The bottom of the inner cavity of the support frame 7 is equipped with four symmetrical fixing bolts 5. The fixing bolts 5 pass through to the bottom of the steel beam 1 and are threaded with a nut. The top of the support frame 7 is equipped with a pad 8. The top of the pad 8 fits against the bottom of the connector 2 and the support beam 3. The bottom of the inner cavity of the connector 2 and the support beam 3 is equipped with two symmetrical assembly plates 9. The top of the assembly plates 9 is equipped with four symmetrical fixing bolts 5. The fixing bolts 5 pass through the connector 2, the support beam 3, the pad 8 and the support frame 7 and are threaded with a nut. Example 2

[0022] Figure 1-4This invention illustrates a connection structure between the end of a main steel beam and a secondary beam according to an embodiment of the present invention. It includes a connector 2 fixedly connected to the right side of the steel beam 1. Two symmetrical side support plates 12, trapezoidal in shape, are fixedly connected to both the front and back of the connector 2. A support beam 3 is provided on the right side of the connector 2. Assembly plates 4 are provided on both the front and back of the connector 2 and the support beam 3. Two rows of symmetrical fixing bolts 5 are threaded through the front of the assembly plate 4, passing through the connector 2, the support beam 3, and the assembly plate 4, and are threaded with nuts. Assembly components 6 are provided at the top of the steel beam 1 and the support beam 3. A support structure 6 is provided on the right side of the steel beam 1. The support frame 7 is I-shaped. Two symmetrical reinforcing plates are fixedly connected to the front and back of the inner cavity of the support frame 7. Four symmetrical fixing bolts 5 are installed at the bottom of the inner cavity of the support frame 7. The fixing bolts 5 penetrate to the bottom of the steel beam 1 and are threaded with nuts. A pad 8 is installed on the top of the support frame 7. The top of the pad 8 fits against the bottom of the connector 2 and the support beam 3. Two symmetrical assembly plates 9 are installed at the bottom of the inner cavity of the connector 2 and the support beam 3. Four symmetrical fixing bolts 5 are installed through the top of the assembly plates 9. The fixing bolts 5 penetrate the connector 2, the support beam 3, the pad 8 and the support frame 7 and are threaded with nuts.

[0023] Working principle: When using this utility model, the user places the support frame 7 on the right side of the steel beam 1, places the pad 8 on top of the support frame 7, and finally places the assembly plate 9 on top of the connection between the connector 2 and the support beam 3. The fixing bolt 5 passes through the assembly plate 9, connector 2, support beam 3, pad 8, and support frame 7 and is threaded with a nut. The support frame 7 and pad 8 support the connector 2 and support beam 3, and the assembly plate 9 reinforces the connection between the connector 2 and support beam 3, preventing fatigue cracks at the connection between the end of the main beam and the secondary beam, thus improving the service life of the connection structure. With the setting of the limiting frame 10, when the support frame 7 is located below the connection between the connector 2 and support beam 3, the limiting frame 10 will limit the support frame 7, preventing the support frame 7 from shifting below the connection between the connector 2 and support beam 3, and ensuring the stability of the support frame 7 on the right side of the steel beam 1.

[0024] In summary, this steel structure main beam end and secondary beam connection structure, by placing the support frame 7 on the right side of the steel beam 1, then placing the pad 8 on top of the support frame 7, and finally placing the assembly plate 9 on top of the connection between the connector 2 and the support beam 3, and fixing the support frame 7, pad 8 and assembly plate 9 with fixing bolts 5, can achieve the purpose of improving the strength and rigidity of the connection between the main beam end and the secondary beam through the reinforcement structure, avoiding fatigue cracks at the connection between the main beam end and the secondary beam, and improving the service life of the connection structure.

Claims

1. A connection structure between the end of a main beam and a secondary beam in a steel structure, characterized in that, The structure includes a connector (2) fixedly connected to the right side of the steel beam (1). A support beam (3) is provided on the right side of the connector (2). Assembly plates (4) are provided on both the front and back of the connector (2) and the support beam (3). Two rows of symmetrical fixing bolts (5) are provided through the front of the assembly plate (4). The two rows of fixing bolts (5) pass through the connector (2), the support beam (3) and the assembly plate (4) and are threaded with nuts. An assembly assembly (6) is provided on the top of the steel beam (1) and the support beam (3). A support frame (7) is provided on the right side of the steel beam (1). The bottom of the inner cavity of the support frame (7) is... The part is equipped with four symmetrical fixing bolts (5), which penetrate to the bottom of the steel beam (1) and are threaded with nuts. The top of the support frame (7) is equipped with a pad (8), the top of which fits against the bottom of the connector (2) and the support beam (3). The bottom of the inner cavity of the connector (2) and the support beam (3) is equipped with two symmetrical assembly plates (9), the top of which is equipped with four symmetrical fixing bolts (5). The fixing bolts (5) penetrate the connector (2), the support beam (3), the pad (8) and the support frame (7) and are threaded with nuts.

2. The connection structure between the end of the main beam and the secondary beam of the steel structure according to claim 1, characterized in that, The assembly component (6) includes a mounting plate one (61) fixed to the top of the steel beam (1) by fixing bolts (5), and a mounting plate two (62) fixed to the top of the connector (2) by fixing bolts (5). Two symmetrical connecting bolts (63) are provided through the right side of the mounting plate two (62), and the left end of the connecting bolt (63) passes through the mounting plate one (61) and is threaded with a nut.

3. The connection structure between the end of the main beam and the secondary beam of the steel structure according to claim 2, characterized in that, The bottom of the support beam (3) is fixedly installed with a triangular plate (11) by bolts. The left side of the limiting frame (10) is in contact with the right side of the support frame (7). The bottom of the limiting frame (10) is fixedly connected with two symmetrical triangular plates (11).

4. The connection structure between the end of the main beam and the secondary beam of the steel structure according to claim 3, characterized in that, The connector (2) has two symmetrical side support plates (12) fixedly connected to both its front and back sides. The side support plates (12) are trapezoidal.

5. The connection structure between the end of the main beam and the secondary beam of the steel structure according to claim 4, characterized in that, The support frame (7) is I-shaped, and two symmetrical reinforcing plates are fixedly connected to the front and back of the inner cavity of the support frame (7).

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