An earthquake-resistant connection structure for steel beam-column joints

Abstract

The present invention relates to the technical field of building beams and columns, and specifically to a seismic connection structure of a steel structure beam-column node, comprising a main building column and a side building beam, wherein a connector is provided on the outer side of the main building column, and the connector is used to strengthen the seismic resistance between the side building beam and the main building column. In this solution, a reinforcing arc plate is provided, so that when the side building beam is connected to the main building column through an extension port, the sliding frame can move a certain distance under the push of the side building beam. The movement of this distance will cause the second gear to rotate, thereby driving the reinforcing ring to rotate, thereby causing the moving shaft to rotate under the action of the transmission gear, and thus the reinforcing arc plate is tightly attached to the main building column under the drive of the thread. In this method, the connection method between the connector and the main building column includes rotation, thread and other fixing methods, and vibration in one direction or multiple directions will not cause the reinforcing arc plate to move, thereby playing a better seismic role.

Description

Technical Field

[0001] The present invention relates to the technical field of building beams and columns, and in particular to an earthquake-resistant connection structure of a steel structure beam-column node. Background Art

[0002] For example, the Chinese patent publication number is CN116446541B, which is a seismically reinforced building beam-column connection structure. During the installation of the side building beam, this method inflates the airbag by moving the distance, increasing the friction between the splicing plate and the main building column, thereby achieving an earthquake-resistant effect.

[0003] However, there are problems with the above method: vibration is uncontrollable in multiple directions. If vibration occurs in the up and down directions, the support rod may move upward. If the upward movement is large, the squeezing lock of the opposite side building beam may be released, thereby failing to achieve the earthquake-resistant effect.

[0004] In conventional technology, the main building columns are usually squeezed and locked in one direction. However, this method is prone to cause instability of the connection structure due to vibrations in different directions, and cannot stabilize the main building beams and side building beams, and naturally cannot achieve a good earthquake resistance effect.

[0005] Aiming at the problem that the existing beam-column node connection structure does not have a good earthquake-resistant effect, a steel structure beam-column node earthquake-resistant connection structure is proposed. Summary of the Invention

[0006] In order to solve the above problems, an embodiment of the present invention provides a seismic-resistant connection structure of a steel structure beam-column node, which solves the problem that the beam-column node connection structure proposed in the background art does not have a good seismic effect.

[0007] To achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical solution: a seismic connection structure of a steel structure beam-column node, comprising a main building column and a side building beam, wherein a connector is provided on the outer side of the main building column, and the connector is used to strengthen the seismic resistance between the side building beam and the main building column;

[0008] The connecting member is connected to the outer side of the main building column by bolts, and a reinforcing disc is fixedly provided on the outer side of the connecting member. An insertion opening for installing the side building beam is opened on the connecting member below the reinforcing disc. A reinforcing mechanism is provided below the reinforcing disc. A plurality of reinforcing arc plates are provided on the inner side of the connecting member. When the side building beam is connected to the main building column, the reinforcing arc plates are tightly attached to the outer surface of the main building column by the reinforcing mechanism.

[0009] A fastening plate is inserted on the side wall of the connecting piece close to the insertion opening, and the fastening plate is used to strengthen the fastening between the side building beam and the main building column when the side building beam enters the insertion opening.

[0010] Preferably, the connecting member is composed of two connecting arc plates, which are arranged in a semicircular manner. The curvature of the connecting arc plates matches the curvature of the main building column. The connecting member is provided with multiple bolt holes with apertures corresponding to those of the bolts, and the connecting member can be preliminarily installed on the outside of the main building column through the bolts.

[0011] Preferably, the reinforcement mechanism includes a sliding frame slidably connected to the bottom of the reinforcement disc, a main driving block is slidably connected in the sliding frame, a fixing spring is provided between the main driving block and the sliding frame, and the main driving block is arranged in a right-angled trapezoidal manner, and its inclined surface is directly opposite to the moving direction of the side building beam during installation;

[0012] The sliding frame is provided with an active rack, and the reinforcing disc is rotatably connected to a driving shaft. The top and bottom ends of the driving shaft are fixedly connected to a first gear and a second gear respectively, wherein the active rack and the first gear are adapted to each other.

[0013] Preferably, the upper end surface of the reinforcement disc is rotatably connected to a reinforcement ring, and a transmission gear ring is provided on the inner side of the reinforcement ring, and the transmission gear ring is adapted to the second gear.

[0014] Preferably, a plurality of receiving grooves are provided on the inner side of the connecting member, and the receiving grooves are connected to the reinforcing arc plate through telescopic rods. The moving direction of the reinforcing arc plate is directly opposite to the center of the connecting member, and the curvature of the reinforcing arc plate corresponds to the curvature of the main building column.

[0015] The connecting member is rotatably connected to a movable shaft, and a movable cylinder is provided on the side of the reinforced arc plate opposite to the main building column. The inner side of the movable cylinder is provided with an internal thread, and the outer side of the movable shaft is provided with an external thread, wherein the external thread and the internal thread are threadedly connected;

[0016] One end of the movable shaft away from the reinforcement arc plate is fixedly connected with a transmission gear, and a fixed gear ring is provided on the top of the reinforcement ring, and the transmission gear and the fixed gear ring are meshed and connected.

[0017] Preferably, the side of the reinforcement arc plate opposite to the main building column is provided with friction lines.

[0018] Preferably, an installation frame is provided on the outside of the extension port, and the installation frame serves as a guide when installing the side building beams;

[0019] Pushing blocks are connected to the side walls of the mounting frame on opposite sides through telescopic rods, the inclined surface of the pushing blocks is aligned with the moving direction of the side building beams, and a return spring is provided between the pushing blocks and the mounting frame;

[0020] The installation frame is slidably connected to the fastening plate. A triangular block is fixedly connected to one end of the fastening plate located in the installation frame. The inclined surface of the triangular block is opposite to the right-angled side of the pushing block. The movement of the pushing block can drive the triangular block to move toward the main building column.

[0021] The beneficial effects of the embodiments of the present invention are:

[0022] 1. The reinforcement arc plate provided in this scheme can enable the sliding frame to move a certain distance under the push of the side building beam when the side building beam is connected to the main building column through the extension port. The movement of this distance will cause the second gear to rotate, thereby driving the reinforcement ring to rotate, thereby causing the moving shaft to rotate under the action of the transmission gear, and thus the reinforcement arc plate to be tightly attached to the main building column under the drive of the thread. In this method, the connection method between the connecting piece and the main building column includes rotation, thread and other fixing methods. Single-direction or multi-directional vibration will not cause the reinforcement arc plate to move, thereby playing a better earthquake-resistant role.

[0023] 2. This solution provides a fastening plate, which can move toward the main building column at the same time through the pushing force of its side wall when the side building beam extends into the installation frame. The fastening plate is connected to the connecting piece through the installation frame, which can also increase the stability between the connecting piece and the main building column.

[0024] 3. This solution provides an installation frame that can serve as a guide when installing the side building beams. It can adjust the installation angle between the side building beams and the main building columns, making it convenient for workers to determine the installation angle between the main building columns and the side building beams during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 Schematic diagram of the structure of the connecting member in the present invention;

[0027] Figure 3 This is a schematic diagram of the position of the reinforcement ring in the present invention;

[0028] Figure 4 Schematic diagram of the position of the reinforcement arc plate relative to the connecting parts;

[0029] Figure 5 is a cross-sectional view of the connector;

[0030] Figure 6 for Figure 5 A magnified view of point A in the figure;

[0031] Figure 7It is a structural diagram of the sliding frame and the main driving block;

[0032] Figure 8 A schematic diagram of the structure of the installation frame.

[0033] In the figure: 1. Main building column; 2. Bolt hole; 3. Connector; 4. Reinforcement disc; 5. Bolt; 6. Storage groove; 7. Side building beam; 8. Reinforcement arc plate; 9. Moving shaft; 10. Moving cylinder; 11. Transmission gear; 12. External thread; 13. Reinforcement ring; 14. Fixed gear ring; 15. Extension port; 16. Mounting frame; 17. Sliding frame; 18. Main driving block; 19. Fixed spring; 20. Active rack; 21. First gear; 22. Second gear; 23. Drive shaft; 24. Transmission gear ring; 25. Pushing block; 26. Triangular block; 27. Fastening plate. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] Example 1

[0036] See attached Figure 1 -Attached Figure 8 A steel structure beam-column node seismic connection structure, comprising a main building column 1 and a side building beam 7, wherein a connector 3 is provided on the outer side of the main building column 1, and the connector 3 is used to strengthen the seismic resistance between the side building beam 7 and the main building column 1;

[0037] Refer to the attached Figure 2 The connecting member 3 is composed of two connecting arc plates, which are arranged in a semicircular manner. The joints of the two connecting arc plates are connected by snap fasteners. The curvature of the connecting arc plates fits the curvature of the main building column 1. By setting it in this way, the connecting member 3 and the main building column 1 can be wrapped as a whole at the same height, thereby increasing the contact area between the two and increasing the friction between the two to a certain extent, thereby improving the stability between the two.

[0038] The connector 3 is provided with a plurality of bolt holes 2 having diameters corresponding to those of the bolts 5. The bolts 5 are used to initially secure the connector 3 to the outside of the main building column 1. When the connector 3 is secured to the outside of the main building column 1, the bolts 5 provide a preliminary fixation between the connector 3 and the main building column 1, facilitating the subsequent connection between the side building beam 7 and the main building column 1. This method is a common method, and the specific implementation will not be described in detail.

[0039] Example 2

[0040] In this embodiment, when the side building beams 7 are installed between the main building columns 1 , the plurality of reinforcing arc plates 8 can be fixed relative to the main building columns 1 .

[0041] Specifically, the connector 3 is connected to the outer side of the main building column 1 by bolts 5. A reinforcement disc 4 is fixedly provided on the outer side of the connector 3. An insertion opening 15 for installing the side building beam 7 is provided on the connector 3 below the reinforcement disc 4. A reinforcement mechanism is provided below the reinforcement disc 4. A plurality of reinforcement arc plates 8 are provided on the inner side of the connector 3. When the side building beam 7 is connected to the main building column 1, the reinforcement arc plates 8 are tightly attached to the outer surface of the main building column 1 through the reinforcement mechanism.

[0042] Refer to the attached Figure 5 and attached Figure 6 The reinforcement mechanism includes a sliding frame 17 slidably connected to the bottom of the reinforcement disc 4. A main drive block 18 is slidably connected to the sliding frame 17. A fixed spring 19 is installed between the main drive block 18 and the sliding frame 17. The main drive block 18 is arranged in a right-angled trapezoidal shape, and its inclined surface is aligned with the direction of movement of the side building beam 7 during installation. When the side building beam 7 moves into the extension port 15, it will contact the inclined surface of the main drive block 18. At this time, the fixed spring 19 is not compressed. The fixed spring 19 is compressed only when the sliding frame 17 moves to its maximum position.

[0043] The sliding frame 17 is provided with an active rack 20, and the reinforcing disc 4 is rotatably connected to a driving shaft 23. The top and bottom ends of the driving shaft 23 are fixedly connected to a first gear 21 and a second gear 22 respectively, wherein the active rack 20 and the first gear 21 are adapted to each other.

[0044] When the sliding frame 17 moves, the first gear 21 rotates under the action of the active rack 20. It should be noted that when the sliding frame 17 moves to the maximum distance, the active rack 20 will disengage from the first gear 21. This ensures that when other side building beams 7 are subsequently installed, the first gear 21 will not drive the sliding frame 17 to move, thereby preventing movement interference. In addition, the active rack 20 does not mesh with the first gear 21 in the initial state. This setting is also to avoid affecting the initial position of other sliding frames 17 when other side building beams 7 are installed. Only when the sliding frame 17 moves does the active rack 20 drive the first gear 21 to rotate.

[0045] The upper end surface of the reinforcement disc 4 is rotatably connected to a reinforcement ring 13 , and a transmission gear ring 24 is provided on the inner side of the reinforcement ring 13 . The transmission gear ring 24 is adapted to fit the second gear 22 .

[0046] When the first gear 21 rotates, the second gear 22 is driven to rotate via the driving shaft 23 . When the second gear 22 rotates, it engages with the transmission gear ring 24 , thereby driving the reinforcement ring 13 to rotate as a whole.

[0047] The end of the movable shaft 9 away from the reinforcement arc plate 8 is fixedly connected to a transmission gear 11 , and a fixed gear ring 14 is provided on the top of the reinforcement ring 13 . The transmission gear 11 and the fixed gear ring 14 are meshed and connected.

[0048] When the reinforcement ring 13 rotates, the transmission gear 11 is driven to rotate via the fixed gear ring 14 .

[0049] A movable shaft 9 is rotatably connected to the connecting member 3, and a movable cylinder 10 is provided on the side of the reinforcing arc plate 8 opposite to the main building column 1. The inner side of the movable cylinder 10 is provided with an internal thread, and the outer side of the movable shaft 9 is provided with an external thread 12, wherein the external thread 12 is threadedly connected to the internal thread.

[0050] When the transmission gear 11 rotates, the movable shaft 9 also rotates, and the internal and external threads 12 cooperate to move the reinforcement arc plate 8 toward the main building column 1. After the multiple side building beams 7 are installed, the multiple reinforcement arc plates 8 have reached their maximum travel distance, and the fit between the reinforcement arc plates 8 and the main building column 1 is now at its tightest.

[0051] And this connection mode is through thread transmission, and this transmission mode will not make the reinforcement arc plate 8 move due to shaking in the up and down and left and right directions, thus ensuring the relative stability of the whole.

[0052] The inner side of the connector 3 is provided with a plurality of receiving grooves 6. The receiving grooves 6 are provided to make the contact area between the inner wall of the connector 3 and the inner wall of the main building column 1 as large as possible. The receiving grooves 6 are connected to the reinforcing arc plate 8 through a telescopic rod. The moving direction of the reinforcing arc plate 8 is opposite to the center of the circle of the connector 3. The curvature of the reinforcing arc plate 8 corresponds to the curvature of the main building column 1; the side of the reinforcing arc plate 8 opposite to the main building column 1 is provided with friction lines. Through the corresponding curvature and the friction lines provided on the reinforcing arc plate 8, the contact between the reinforcing arc plate 8 and the main building column 1 is made closer and more stable, and the earthquake resistance is also stronger.

[0053] Example 3

[0054] This embodiment is a preferred solution, and its function is the same as that of the above embodiment, which is to increase the stability between the connecting member 3 and the main building column 1 when the side building beam 7 is installed.

[0055] For details, please refer to the attached Figure 8A fastening plate 27 is inserted on the side wall of the connecting member 3 close to the insertion opening 15. The fastening plate 27 is used to strengthen the fastening between the side building beam 7 and the main building column 1 when the side building beam 7 enters the insertion opening 15.

[0056] A mounting frame 16 is provided on the outside of the insertion opening 15. The mounting frame 16 serves as a guide when installing the side building beam 7. Since the side building beam 7 needs to be supported by various devices during installation, and if the insertion opening 15 is short, the installation angle between the side building beam 7 and the main building column 1 may differ from the predetermined angle. The mounting frame 16 can make the side building beam 7 slide a certain distance inside the mounting frame 16 when installing the side building beam 7. The sliding distance can correspond to the predetermined installation angle. The sliding distance can be used to stabilize the angle of the side building beam 7 during installation.

[0057] The side walls on opposite sides of the installation frame 16 are connected to pushing blocks 25 through telescopic rods. The inclined surface of the pushing block 25 is opposite to the moving direction of the side building beam 7. A reset spring is also provided between the pushing block 25 and the installation frame 16. The initial position of the pushing block 25 will block a small part of the installation frame 16, and when the side building beam 7 is installed, the pushing block 25 will be pushed.

[0058] The mounting frame 16 is slidably connected to the fastening plate 27. A triangular block 26 is fixedly connected to one end of the fastening plate 27 located inside the mounting frame 16. The inclined surface of the triangular block 26 is opposite to the right-angled side of the pushing block 25. The movement of the pushing block 25 can drive the triangular block 26 to move toward the main building column 1.

[0059] When the side building beam 7 moves into the installation frame 16, the side building beam 7 body contacts the inclined surface of the pushing block 25, thereby causing the pushing block 25 to move toward the side wall of the installation frame 16. When the pushing block 25 moves, the inclined surface of the triangular block 26 causes the fastening plate 27 to move toward the main building column 1, and the fastening plate 27 will be more tightly connected to the main building column 1, thereby stabilizing the connecting member 3 to a certain extent.

[0060] In summary, this method can increase the stability between the connecting member 3 and the main building column 1, thereby increasing the seismic resistance between the side building beam 7 and the main building column 1.

[0061] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0064] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A seismic connection structure of a steel structure beam-column node, characterized in that: It comprises a main building column (1) and a side building beam (7), wherein a connecting piece (3) is provided on the outside of the main building column (1), and the connecting piece (3) is used to strengthen the seismic resistance between the side building beam (7) and the main building column (1); The connecting member (3) is connected to the outside of the main building column (1) by means of bolts (5); a reinforcing disc (4) is fixedly provided on the outside of the connecting member (3); an insertion opening (15) for installing the side building beam (7) is provided on the connecting member (3) below the reinforcing disc (4); a reinforcing mechanism is provided below the reinforcing disc (4); a plurality of reinforcing arc plates (8) are provided on the inside of the connecting member (3); when the side building beam (7) is connected to the main building column (1), the reinforcing arc plates (8) are tightly attached to the outer surface of the main building column (1) through the reinforcing mechanism; A fastening plate (27) is inserted into the side wall of the connecting member (3) near the insertion opening (15). The fastening plate (27) is used to strengthen the fastening between the side building beam (7) and the main building column (1) when the side building beam (7) enters the insertion opening (15). The reinforcement mechanism includes a sliding frame (17) slidably connected to the bottom of the reinforcement disc (4), a main driving block (18) is slidably connected in the sliding frame (17), a fixing spring (19) is provided between the main driving block (18) and the sliding frame (17), and the main driving block (18) is arranged in a right-angled trapezoidal manner, and its inclined surface is directly opposite to the moving direction of the side building beam (7) during installation; The sliding frame (17) is provided with an active rack (20), and the reinforcing disc (4) is rotatably connected to a driving shaft (23). The top and bottom ends of the driving shaft (23) are fixedly connected to a first gear (21) and a second gear (22), respectively, wherein the active rack (20) and the first gear (21) are adapted to each other.

2. The seismic connection structure of a steel structure beam-column node according to claim 1, characterized in that: The connecting member (3) is composed of two connecting arc plates, which are arranged in a semicircular manner. The curvature of the connecting arc plates matches the curvature of the main building column (1). The connecting member (3) is provided with a plurality of bolt holes (2) having a diameter corresponding to that of the bolts (5). The connecting member (3) can be preliminarily installed on the outside of the main building column (1) through the bolts (5).

3. The seismic connection structure of a steel structure beam-column node according to claim 1, characterized in that: The upper end surface of the reinforcement disc (4) is rotatably connected to a reinforcement ring (13), and a transmission gear ring (24) is provided on the inner side of the reinforcement ring (13). The transmission gear ring (24) is adapted to fit the second gear (22).

4. The seismic-resistant connection structure of a steel structure beam-column node according to claim 3, characterized in that: The inner side of the connecting member (3) is provided with a plurality of receiving grooves (6), and the receiving grooves (6) are connected to the reinforcing arc plate (8) via telescopic rods. The moving direction of the reinforcing arc plate (8) is directly opposite to the center of the connecting member (3), and the curvature of the reinforcing arc plate (8) corresponds to the curvature of the main building column (1); The connecting member (3) is rotatably connected to a movable shaft (9), and a movable cylinder (10) is provided on the side of the reinforcing arc plate (8) opposite to the main building column (1). The inner side of the movable cylinder (10) is provided with an internal thread, and the outer side of the movable shaft (9) is provided with an external thread (12), wherein the external thread (12) is threadedly connected to the internal thread; One end of the movable shaft (9) away from the reinforcement arc plate (8) is fixedly connected to a transmission gear (11), and a fixed gear ring (14) is provided on the top of the reinforcement ring (13), and the transmission gear (11) and the fixed gear ring (14) are meshed and connected.

5. The seismic-resistant connection structure of a steel structure beam-column node according to claim 1, characterized in that: The side of the reinforcement arc plate (8) opposite to the main building column (1) is provided with friction lines.

6. The seismic-resistant connection structure of a steel structure beam-column node according to claim 1, characterized in that: An installation frame (16) is provided on the outside of the insertion opening (15), and the installation frame (16) serves as a guide when installing the side building beam (7); Pushing blocks (25) are connected to the side walls of the mounting frame (16) on opposite sides via telescopic rods. The inclined surface of the pushing block (25) is aligned with the moving direction of the side building beam (7). A return spring is provided between the pushing block (25) and the mounting frame (16). The mounting frame (16) is slidably connected to the fastening plate (27). A triangular block (26) is fixedly connected to one end of the fastening plate (27) located inside the mounting frame (16). The inclined surface of the triangular block (26) is opposite to the right-angled side of the pushing block (25). The movement of the pushing block (25) can drive the triangular block (26) to move in the direction of the main building column (1).

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