Fabricated frame node anti-seismic reinforcing device

Abstract

The utility model discloses an assembly type frame node anti-seismic reinforcing device, which belongs to the technical field of concrete building reinforcement and comprises first channel steel and second channel steel, the first channel steel and the second channel steel are assembled to form a beam support, the inner surface of the first channel steel is integrally connected with a supporting plate, and the front end of the second channel steel is integrally connected with an end block. When the first channel steel and the second channel steel are assembled, the end block is attached to the supporting plate, an embedding groove is formed in the center of the inner face of the first channel steel, a first U-shaped plate is embedded in the embedding groove, a second U-shaped plate is attached to the center of the inner face of the second channel steel, an air cylinder is connected between the first U-shaped plate and the second U-shaped plate, and a hanging piece is arranged at the joint of the first channel steel and the second channel steel. The supporting plates are matched with the end blocks, so that relative displacement of the channel steel at the beam-column joint under the action of earthquake force is effectively prevented, and the overall stability of the joint is enhanced; the design of the hanging pieces plays a role in auxiliary connection and positioning, and dislocation of the first channel steel and the second channel steel in the using process can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete building reinforcement, in particular to an assembled frame node anti-seismic reinforcement device. Background Art

[0002] Prefabricated and assembled concrete frame structure refers to a frame structure in which the main components are prefabricated in a factory or on a construction site. Current research on the seismic performance of prefabricated concrete frame structures is mostly focused on enhancing the seismic performance of the nodes themselves. Common beam-column node reinforcement methods include increasing the cross-section method. Although the increasing cross-section method can improve the bending and shear bearing capacity of the beam-column nodes, it is difficult to construct and has a great impact on the historical appearance of the building.

[0003] Chinese invention patent CN117071935A discloses a seismic energy dissipation reinforcement device and method for reinforced concrete beam-column joints. The shape memory alloy at room temperature is grooved and combined with a sliding friction damping support structure, which can greatly enhance the overall damping performance of the device. While improving the bending bearing capacity and stiffness of the beam-column joint, it can dissipate seismic energy through damping energy dissipation and maintain the original structural characteristics of the beam-column joint. When the beam is bent or rotated, the sliding friction damping support structure can play the role of a diagonal brace under the constraint of bolts.

[0004] The existing beam-column node seismic reinforcement device only uses bolts for connection during assembly. The assembled reinforcement device parts have no support between each other, resulting in a relatively concentrated force transmission, forming a stress concentration phenomenon, and making the force on the beam-column node uneven. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems raised in the above background technology, the utility model adopts the following technical solutions.

[0007] An assembled frame node seismic reinforcement device comprises a first channel steel and a second channel steel, wherein the second channel steel is assembled in the first channel steel to form a beam support, the inner surface of the first channel steel is integrally connected with a support plate, and the front end of the second channel steel is integrally connected with an end block, when the first channel steel and the second channel steel are assembled, the end block and the support plate are fitted together, an embedding groove is provided at the center of the inner surface of the first channel steel, a first U-shaped plate is embedded in the embedding groove, a second U-shaped plate is fitted at the center of the inner surface of the second channel steel, a cylinder is connected between the first U-shaped plate and the second U-shaped plate, and a hanging plate is provided at the connection between the first channel steel and the second channel steel.

[0008] Preferably, jack holes are formed on the outer surface of the first channel steel, and the centers of the jack holes coincide with the centers of the embedded grooves. The length and width of the jack holes are smaller than those of the embedded grooves, and an access board is inserted into the jack holes. The access board is of a hollow structure, and the end of the access board is connected to the central axis of the first U-shaped plate.

[0009] Preferably, second fixing holes are symmetrically formed at the upper and lower ends of the embedded grooves on the first channel steel. Correspondingly, round holes are formed on the inner surface of the first U-shaped plate. When the first U-shaped plate is assembled in the embedded groove, the round holes coincide with the second fixing holes, and third expansion bolts are inserted into the round holes and the second fixing holes.

[0010] Preferably, first fixing holes are symmetrically formed on the support plate, and third fixing holes are symmetrically formed on the end blocks. When the end blocks are adapted to the support plate, the first fixing holes coincide with the third fixing holes, and second expansion bolts are inserted into the first fixing holes and the third fixing holes.

[0011] Preferably, fourth fixing holes are formed on the upper surface of the second channel steel, and positioning holes are formed on the upper surface of the second U-shaped plate. When the second U-shaped plate is assembled in the second channel steel, the positioning holes coincide with the fourth fixing holes, and first expansion bolts are inserted into the positioning holes and the fourth fixing holes.

[0012] Preferably, first adjustment holes are equidistantly formed on the first U-shaped plate, and second adjustment holes are equidistantly formed on the second U-shaped plate. Pin pieces are provided at both ends of the air cylinder, and the air cylinder is connected to the first adjustment holes and the second adjustment holes respectively through the pin pieces by inserting pins.

[0013] Preferably, a plurality of first assembly holes are provided on both sides of the first channel steel, and a plurality of second assembly holes are provided on both sides of the second channel steel. When the first channel steel and the second channel steel are assembled, the first assembly holes coincide with the second assembly holes, and bolts are provided at the first assembly holes and the second assembly holes. Nuts are threadedly connected to the ends of the bolts.

[0014] Preferably, the hanging piece is bent into a Z-shaped structure, and the height of the bent part of the hanging piece is equal to the thickness of the first channel steel. Through holes are formed at both ends of the hanging piece, and the through hole at one end of the hanging piece matches one of the first assembly holes on the first channel steel. A connecting hole for adapting the through hole at the other end of the hanging piece is formed on the second channel steel.

[0015] Preferably, the ends of the first channel steel and the second channel steel are cut with bevel edges.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] (1) In the present utility model, the first channel steel and the second channel steel are stably connected in various ways. At the end, the cooperation between the support plate and the end block, and the insertion of the second expansion bolt through the first fixing hole and the third fixing hole ensure the accuracy and firmness of the end connection. This connection method effectively prevents the relative displacement of the channel steel at the beam-column joint under the action of seismic force, enhancing the overall stability of the joint; the unique design of the hanging piece plays an auxiliary connection and positioning role, which can effectively prevent the separation or misalignment of the first channel steel and the second channel steel during use, thereby improving the reliability of the beam-column joint connection.

[0018] (2) The cylinder connected between the first U-shaped plate and the second U-shaped plate in the present utility model is a key component for seismic reinforcement. The pin pieces at both ends of the cylinder are connected by inserting pins through the first adjustment hole of the first U-shaped plate and the second adjustment hole of the second U-shaped plate. The above adjustable connection method can flexibly adjust the working state of the cylinder according to the actual seismic conditions. During an earthquake, the cylinder can effectively provide support, reduce the seismic response at the beam-column joint, and protect the beam-column structure from being damaged by excessive seismic force.

[0019] (3) The inclined sides of the first channel steel and the second channel steel in the present utility model help to improve the stress distribution at the beam-column joint. Under the action of seismic force, this can reduce the stress concentration phenomenon, make the stress of the beam-column joint more uniform, thereby improving the seismic resistance of the beam-column joint. Moreover, the front end of the second channel steel is integrally connected with the cooperation between the end block and the support plate of the first channel steel, reducing the number of connecting components, improving the assembly efficiency, and enhancing the integrity and reliability of the connection to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional view of the seismic reinforcement device in the present utility model Figure 1 .

[0021] Figure 2 is a three-dimensional view of the seismic reinforcement device in the present utility model Figure 2 .

[0022] Figure 3 is a side view of the seismic reinforcement device in the present utility model.

[0023] Figure 4 is a cross-sectional view of the seismic reinforcement device in the present utility model.

[0024] Figure 5 is a cross-sectional plan view of the seismic reinforcement device in the present utility model.

[0025] Figure 6 is a structural diagram of the first channel steel and its accessory components in the present utility model.

[0026] Figure 7 is a cross-sectional view of the first channel steel in the present utility model.

[0027] Figure 8 This is the structural diagram of the second channel steel and its attached components in the present utility model.

[0028] The corresponding relationship between the labels of each attached figure and the component names in the figure is as follows:

[0029] 1. First channel steel; 11. Support plate; 12. First fixing hole; 13. Second fixing hole; 14. Insertion hole; 15. Embedded groove; 16. First assembly hole; 2. Second channel steel; 21. End block; 211. Third fixing hole; 22. Fourth fixing hole; 221. First expansion bolt; 23. Second assembly hole; 3. First U-shaped plate; 31. Access plate; 32. First adjustment hole; 4. Second U-shaped plate; 41. Positioning hole; 42. Second adjustment hole; 5. Cylinder; 6. Hanging piece; 7. Inclined edge; 8. Bolt; 9. Second expansion bolt; 10. Third expansion bolt. Specific embodiments

[0030] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0031] In the following description, many specific details are set forth to facilitate a thorough understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0032] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0033] Refer to Figures 1-3 This is the structural diagram of the aseismic reinforcement device for the assembled frame joint in this embodiment. The aseismic reinforcement device in this embodiment is composed of a first channel steel 1 and a second channel steel 2. The ends of the first channel steel 1 and the second channel steel are cut with an inclined edge 7. After cutting the inclined edge 7, the stress originally concentrated at the tip will be dispersed to various parts of the inclined edge 7, making the stress distribution more uniform, thereby reducing the degree of local stress concentration, and thus improving the stability and seismic performance of the entire structure. The second channel steel 2 is assembled inside the first channel steel 1 to form a beam support. The beam support can effectively support the beam structure, enhance the bearing capacity at the beam-column joint, and ensure the stability of the connection between the beam and the column under complex loading conditions such as earthquakes.

[0034] InFigure 6 , Figure 7 and Figure 8 In this embodiment, an embedding groove 15 is provided at the center of the inner surface of the first channel steel 1, and a first U-shaped plate 3 is embedded in the embedding groove 15. The embedding groove 15 provides an accurate installation position for the first U-shaped plate 3, enabling the first U-shaped plate 3 to be stably embedded inside the first channel steel 1. A second U-shaped plate 4 is attached to the center of the inner surface of the second channel steel 2, and a cylinder 5 is connected between the first U-shaped plate 3 and the second U-shaped plate 4. In this embodiment, the first U-shaped plate 3 and the second U-shaped plate 4 play a role in connecting and transmitting forces. On the one hand, the first U-shaped plate 3 is tightly connected to the first channel steel 1 and the second U-shaped plate 4 is tightly connected to the second channel steel 2 respectively, effectively transmitting the forces borne by the first channel steel 1 and the second channel steel 2. On the other hand, it provides a connection carrier for the cylinder 5 and is an important part of realizing the energy dissipation function of the seismic reinforcement device. Under the action of external forces such as earthquakes, the beam-column joint will vibrate, and the cylinder 5 is used for support to protect the beam-column structure from being damaged by excessive vibration. Further, in this embodiment, first adjustment holes 32 are equidistantly arranged on the first U-shaped plate 3, and second adjustment holes 42 are equidistantly arranged on the second U-shaped plate 4. The two ends of the cylinder 5 are provided with pin pieces, and the cylinder 5 is connected to the first adjustment holes 32 and the second adjustment holes 42 respectively through pins by means of the pin pieces. The equidistant arrangement of the first adjustment holes 32 and the second adjustment holes 42 enables the connection position of the cylinder 5 to be adjusted according to actual needs, so that the working state of the cylinder 5 can be flexibly changed to meet different seismic requirements.

[0035] When an earthquake occurs, the beam-column joint is subjected to seismic forces. The first channel steel 1 and the second channel steel 2 bear these forces first and transmit the forces to the first U-shaped plate 3 and the second U-shaped plate 4. Due to the action of the seismic forces, an extrusion force will be generated between the first U-shaped plate 3 and the second U-shaped plate 4. At this time, the cylinder 5 plays a supporting role, thus ensuring the stability of the beam-column joint.

[0036] In Figure 4 and Figure 7 In this embodiment, a jack hole 14 is provided on the outer surface of the first channel steel 1, and the center of the jack hole 14 coincides with the center of the embedding groove 15. The length and width of the jack hole 14 are smaller than those of the embedding groove 15, and an access plate 31 is inserted into the jack hole 14. In this embodiment, the access plate 31 is assembled with the first channel steel 1 through the jack hole 14, and the access plate 31 is buried in the column body. The access plate 31 is of a hollow structure to increase the contact area with the concrete.

[0037] In Figure 5 and Figure 6In this embodiment, a support plate 11 is integrally connected to the inner surface of the first channel steel 1, and an end block 21 is integrally connected to the front end of the second channel steel 2. When the first channel steel 1 and the second channel steel 2 are assembled, the end block 21 is in contact with the support plate 11 to ensure that the first channel steel 1 and the second channel steel 2 can be accurately butted, providing guarantee for the assembly precision of the whole structure. At the same time, the first channel steel 1 is connected to the column, and the second channel steel 2 is connected to the beam. The contact between the end block 21 and the support plate 11 enables the first channel steel 1 to support the second channel steel 2, which is more conducive to the transmission of force. Symmetric first fixing holes 12 are formed in the support plate 11, and symmetric third fixing holes 211 are formed in the end block 21. When the end block 21 is adapted to the support plate 11, the first fixing holes 12 coincide with the third fixing holes 211, and a second expansion bolt 9 is inserted into the first fixing holes 12 and the third fixing holes 211 at the coincidence. In this embodiment, when the second expansion bolt 9 is inserted into the coincident first fixing holes 12 and third fixing holes 211, the ends of the first channel steel 1 and the second channel steel 2 can be firmly connected together. In the seismic reinforcement device, this firm connection can prevent the two channel steels from having relative displacement at the ends under the action of external forces such as earthquakes, thereby ensuring the integrity and stability of the whole device. At the same time, since the second expansion bolt 9 is driven into the column, the device is connected to the concrete structure.

[0038] In Figures 6-8In this embodiment, second fixing holes 13 are symmetrically formed at the upper and lower ends of the first channel steel 1 and located at the positions of the embedded grooves 15. Correspondingly, circular holes are formed on the inner surface of the first U-shaped plate 3. When the first U-shaped plate 3 is assembled in the embedded groove 15, the circular holes coincide with the second fixing holes 13. A third expansion bolt 10 is inserted at the positions of the circular holes and the second fixing holes 13. The third expansion bolt 10 in this embodiment is a key component connecting the first channel steel 1 and the first U-shaped plate 3. When inserted into the coincident circular holes and second fixing holes 13, it is in close contact with the hole wall through the expansion effect, tightly fixing the first U-shaped plate 3 in the embedded groove 15 of the first channel steel 1. This connection ensures that the first U-shaped plate 3 will not easily move in the embedded groove 15 when subjected to external forces, providing guarantee for the stability of the entire structure. At the same time, the third expansion bolt 10 strengthens the connection between the first channel steel 1 and the concrete structure. A fourth fixing hole 22 is formed on the upper surface of the second channel steel 2, and a positioning hole 41 is formed on the upper surface of the second U-shaped plate 4. When the second U-shaped plate 4 is assembled in the second channel steel 2, the positioning hole 41 coincides with the fourth fixing hole 22. A first expansion bolt 221 is inserted at the positions of the positioning hole 41 and the fourth fixing hole 22. The function of the first expansion bolt 221 in this embodiment is to firmly connect the second U-shaped plate 4 in the second channel steel 2. When inserted into the coincident positioning hole 41 and fourth fixing hole 22, it is in close contact with the hole wall through the expansion effect, ensuring that the second U-shaped plate 4 will not displace in the second channel steel 2, making the two form a stable whole so as to work together in the seismic reinforcement device. And since the first expansion bolt 221 is driven into the beam, the second channel steel 2 is connected to the beam.

[0039] In Figure 3 and Figure 6In this embodiment, a plurality of first assembly holes 16 are provided on both sides of the first channel steel 1, and a plurality of second assembly holes 23 are provided on both sides of the second channel steel 2. When the first channel steel 1 is assembled with the second channel steel 2, the first assembly holes 16 coincide with the second assembly holes 23, and bolts 8 are provided at the positions of the first assembly holes 16 and the second assembly holes 23. The ends of the bolts 8 are threadedly connected with nuts. In this embodiment, when the first assembly holes 16 coincide with the second assembly holes 23, the bolts 8 are inserted. By inserting the bolts 8, the first channel steel 1 and the second channel steel 2 are preliminarily connected together, and a basis is provided for tightening the nuts subsequently. A hanging piece 6 is provided at the connection of the first channel steel 1 and the second channel steel 2. The hanging piece 6 is bent into a Z-shaped structure, and the height of the bent part of the hanging piece 6 is equal to the thickness of the first channel steel 1, so that the hanging piece 6 can be well attached to the connection of the first channel steel 1 and the second channel steel 2. Through holes are provided at both ends of the hanging piece 6, and the through hole at one end of the hanging piece 6 matches one of the first assembly holes 16 on the first channel steel 1. A connection hole is provided on the second channel steel 2 for adapting to the through hole at the other end of the hanging piece 6. In this embodiment, first, the through hole at one end of the hanging piece 6 is aligned with one of the first assembly holes 16 on the first channel steel 1, and the bent part of the hanging piece 6 is attached to the side surface of the first channel steel 1. Then, the through hole at the other end of the hanging piece 6 is aligned with the corresponding connection hole on the second channel steel 2, and the hanging piece 6 straddles the connection of the first channel steel 1 and the second channel steel 2. Through the cooperation with the corresponding holes on the two channel steels, additional connection and reinforcement are provided for the connection. The main function of the hanging piece 6 is to provide additional connection and reinforcement at the connection of the first channel steel 1 and the second channel steel 2, enhance the stability of the connection, and prevent deformation or loosening at the connection during the stress process.

[0040] The above content further elaborates on the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. An aseismic reinforcement device for an assembled frame joint, comprising a first channel steel (1) and a second channel steel (2), wherein the second channel steel (2) is assembled inside the first channel steel (1) to form a beam bracket. It is characterized in that: A support plate (11) is integrally connected to the inner surface of the first channel steel (1), and an end block (21) is integrally connected to the front end of the second channel steel (2). When the first channel steel (1) and the second channel steel (2) are assembled, the end block (21) is in contact with the support plate (11). An embedding groove (15) is formed at the center of the inner surface of the first channel steel (1), and a first U-shaped plate (3) is embedded in the embedding groove (15). A second U-shaped plate (4) is attached to the center of the inner surface of the second channel steel (2), and a cylinder (5) is connected between the first U-shaped plate (3) and the second U-shaped plate (4). A hanging piece (6) is provided at the connection between the first channel steel (1) and the second channel steel (2).

2. The aseismic reinforcement device for prefabricated frame joints according to claim 1, wherein: A jack hole (14) is formed on the outer surface of the first channel steel (1), and the center of the jack hole (14) coincides with the center of the embedding groove (15). The length and width of the jack hole (14) are smaller than those of the embedding groove (15), and an access plate (31) is inserted into the jack hole (14). The access plate (31) is of a hollow structure, and the end of the access plate (31) is connected to the central axis of the first U-shaped plate (3).

3. The aseismic reinforcement device for assembled frame joints according to claim 2, characterized in that: Second fixing holes (13) are symmetrically formed at the upper and lower ends of the first channel steel (1) and located at the positions of the embedding groove (15). Correspondingly, circular holes are formed on the inner surface of the first U-shaped plate (3). When the first U-shaped plate (3) is assembled in the embedding groove (15), the circular holes coincide with the second fixing holes (13), and third expansion bolts (10) are inserted into the circular holes and the second fixing holes (13).

4. The aseismic reinforcement device for assembled frame joints according to claim 1, characterized in that: First fixing holes (12) are symmetrically formed on the support plate (11), and third fixing holes (211) are symmetrically formed on the end block (21). When the end block (21) is adapted to the support plate (11), the first fixing holes (12) coincide with the third fixing holes (211), and second expansion bolts (9) are inserted into the first fixing holes (12) and the third fixing holes (211).

5. The aseismic reinforcement device for assembled frame joints according to claim 1, characterized in that: Fourth fixing holes (22) are formed on the upper surface of the second channel steel (2), and positioning holes (41) are formed on the upper surface of the second U-shaped plate (4). When the second U-shaped plate (4) is assembled in the second channel steel (2), the positioning holes (41) coincide with the fourth fixing holes (22), and first expansion bolts (221) are inserted into the positioning holes (41) and the fourth fixing holes (22).

6. The aseismic reinforcement device for assembled frame joints according to claim 1, characterized in that: First adjustment holes (32) are equidistantly formed on the first U-shaped plate (3), and second adjustment holes (42) are equidistantly formed on the second U-shaped plate (4). The two ends of the cylinder (5) are provided with pin pieces, and the cylinder (5) is connected to the first adjustment holes (32) and the second adjustment holes (42) respectively through pins by using the pin pieces.

7. The aseismic reinforcement device for the assembled frame joint according to claim 1, characterized in that: A plurality of first assembly holes (16) are provided on both sides of the first channel steel (1), and a plurality of second assembly holes (23) are provided on both sides of the second channel steel (2). When the first channel steel (1) and the second channel steel (2) are assembled, the first assembly holes (16) coincide with the second assembly holes (23), and bolts (8) are provided at the first assembly holes (16) and the second assembly holes (23), and nuts are threadedly connected to the ends of the bolts (8).

8. The aseismic reinforcement device for an assembled frame joint according to claim 7, characterized in that: The hanging piece (6) is bent into a Z-shaped structure, and the height of the bent portion of the hanging piece (6) is equal to the thickness of the first channel steel (1). Through holes are provided at both ends of the hanging piece (6), and the through hole at one end of the hanging piece (6) is matched with one of the first assembly holes (16) on the first channel steel (1). A connection hole for adapting the through hole at the other end of the hanging piece (6) is provided on the second channel steel (2).

9. The aseismic reinforcement device for assembled frame joints according to claim 1, characterized in that: Hypotenuses (7) are cut on the ends of the first channel steel (1) and the second channel steel (2).

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