Beam column joint anti-seismic reinforcing structure

Abstract

The utility model discloses a beam column joint anti-seismic reinforcing structure which comprises a reinforcing assembly connected to the connecting position of a longitudinal beam column and a transverse beam column, and the reinforcing assembly comprises two inclined supporting plates arranged in a crossed mode. The two ends of the inclined supporting plate are connected with a side connecting plate connected with the longitudinal beam column and an upper connecting plate connected with the transverse beam column respectively. The device has the beneficial effects that shear force and bending moment caused by earthquakes are effectively dispersed through the inclined supporting plates which are arranged in a crossed mode, connection with the longitudinal beam columns and the transverse beam columns is achieved through the side connecting plates and the upper connecting plates, force can be evenly distributed to the longitudinal beam columns and the transverse beam columns, and local stress concentration is avoided; according to the device, through the good damping effect of the reinforcing assembly, vibration energy can be effectively absorbed and dissipated, effective reinforcing and transformation of an existing node position are achieved, the node bearing capacity is improved, meanwhile, the node has the progressive collapse resisting capacity, and the anti-seismic capacity of the node is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of beam-column joints, and particularly relates to an anti-seismic reinforcement structure for beam-column joints. Background Technique

[0002] In recent years, with the increase in building scale and complexity, as well as the frequent occurrence of natural disasters, ensuring structural safety has become the focus of research. In particular, the impact of earthquakes and progressive collapses on steel frame structures cannot be ignored. When a progressive collapse occurs, local damage may rapidly spread, triggering a large-scale structural collapse and causing serious losses of life and property. As a key connection part of the steel frame structure, the bearing capacity of the beam-column joint directly affects the safety of the overall structure.

[0003] Comparing with the utility model patent of CN219261324U, it discloses a beam-column joint reinforcement structure, including a beam body and a column body. Press plates are arranged on both side surfaces of the column body. Two sliding through grooves are opened on the surface of the press plate. Limiting sliding grooves are opened at both the upper and lower ends inside the press plate in the sliding through groove. A limiting block slidably connected with the sliding through groove is arranged inside the sliding through groove. Limiting sliding blocks slidably connected with the corresponding limiting sliding grooves are fixedly connected to both the upper and lower ends of the limiting block. A moving plate fixedly connected with the column body by bolts is fixedly connected to one side of the limiting block. Moving mechanisms are arranged on one side of both press plates. In this device, the inclined connecting plate is used to form a support for the beam body, and the stiffness is only enhanced in one direction, which may not effectively improve the stiffness of the overall structure, and the overall stability is poor. In use, especially the forces generated during the vibration of the beam and column are multi-directional, and the anti-seismic ability of this structure is poor.

[0004] Therefore, providing an anti-seismic reinforcement structure for beam-column joints has become a problem worthy of research. Content of the Utility Model

[0005] In order to solve the deficiencies existing in the above-mentioned prior art, the purpose of the utility model is to effectively absorb and dissipate vibration energy through the good shock absorption effect of the reinforcement component, so as to effectively reinforce and transform the existing joint position, improve the bearing capacity of the joint and make the joint have the ability to resist progressive collapse.

[0006] The purpose of the utility model is achieved as follows:

[0007] An anti-seismic reinforcement structure for beam-column joints provided by the utility model includes a reinforcement component connected to the joint of the longitudinal beam-column and the transverse beam-column. The reinforcement component includes two obliquely arranged bracing plates. Side connecting plates connected to the longitudinal beam-column and upper connecting plates connected to the transverse beam-column are respectively connected to both ends of the obliquely arranged bracing plates.

[0008] Further, the side connecting plate is perpendicularly arranged to the upper connecting plate.

[0009] Further, the number of the side connecting plates is one, and it is connected between the two diagonal braces.

[0010] Further, the number of the side connecting plates is two, and they are arranged on both sides of the diagonal braces in a facing-away manner.

[0011] Further, the connection positions of the two diagonal braces are close to the side connecting plate.

[0012] Further, strip-shaped holes are provided on the surface of the side connecting plate and / or the upper connecting plate.

[0013] Further, welding groove holes are provided on the surface of the side connecting plate and / or the upper connecting plate.

[0014] Further, a connecting vertical plate is provided between the two upper connecting plates.

[0015] Positive and beneficial effects:

[0016] The diagonally arranged braces effectively disperse the shear force and bending moment caused by an earthquake, enhance the stiffness of the joint, significantly reduce the deformation under earthquake loads, improve the overall stability, and use the side connecting plate and the upper connecting plate to connect with the longitudinal beam-column and the transverse beam-column, enabling the force to be evenly distributed to the longitudinal beam-column and the transverse beam-column and avoiding local stress concentration;

[0017] With the good shock absorption effect of the reinforcement component in the device, the vibration energy can be effectively absorbed and dissipated, the risk of structural damage can be reduced, the existing joint position can be effectively reinforced and transformed, the bearing capacity of the joint can be improved, and the joint can have the ability to resist progressive collapse, thereby greatly enhancing the seismic capacity of the joint and minimizing the casualties and property losses caused by structural damage. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the present invention when connected by anchor bolts;

[0020] Figure 3 It is a schematic structural diagram of the present invention when connected by welding;

[0021] Figure 4 It is a schematic structural diagram of the present invention when the connecting vertical plate is provided;

[0022] Figure 5 It is an analysis schematic diagram of the present invention during seismic resistance;

[0023] In the figure: vertical beam-column 1, horizontal beam-column 2, reinforcement component 3, inclined bracing plate 301, upper connecting plate 302, side connecting plate 303, connecting vertical plate 304, strip hole 305, welding groove hole 306; Detailed implementation mode

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] First embodiment:

[0026] See Figures 1-5 As shown, a seismic reinforcement structure for beam-column joints provided by the present utility model includes a reinforcement component 3 connected to the joint of a vertical beam-column 1 and a horizontal beam-column 2. The reinforcement component 3 includes two inclined bracing plates 301 arranged in a cross shape. The two inclined bracing plates 301 are integrally formed. Both ends of the inclined bracing plate 301 are respectively connected with a side connecting plate 303 and an upper connecting plate 302. The side connecting plate 303 and the upper connecting plate 302 are respectively connected with the vertical beam-column 1 and the horizontal beam-column 2, that is, the upper connecting plate 302 is respectively connected with the upper and lower surfaces of the horizontal beam-column 2, and is connected to the side wall of the vertical beam-column 1 through the side connecting plate 303. In addition, the side connecting plate 303 and the upper connecting plate 302 are vertically arranged. This arrangement ensures that the mechanical properties of the reinforcement component 3 are optimized. The inclined bracing plates 301 are arranged in a cross shape, effectively dispersing the shear force and bending moment transmitted to the joint under seismic action, significantly improving the seismic resistance of the joint. When the structure works under earthquake or other strong vibration loads, the inclined bracing plates 301 effectively enhance the stiffness of the joint between the vertical beam-column 1 and the horizontal beam-column 2 through their cross structure, reduce the deformation of the joint, and improve the stability of the overall structure; the vertical arrangement of the side connecting plate 303 and the upper connecting plate 302 not only facilitates the connection with the vertical beam-column 1 and the horizontal beam-column 2, thus evenly distributing the forces applied to the joint, avoiding local stress concentration, and further improving the seismic performance of the joint; this reinforcement component 3 has a good shock absorption effect, can effectively absorb and dissipate vibration energy, reduce the vibration impact on the structure, and reduce the risk of structural damage.

[0027] In summary, the device can be easily connected during connection, and by setting the inclined bracing plates 301, their side connecting plates 303 and upper connecting plates 302, the seismic reinforcement effect of the joint can be significantly improved, thus ensuring the safety and stability of the building structure under extreme conditions such as earthquakes.

[0028] Second embodiment, the different feature from the first embodiment is:

[0029] The number of side connection plates 303 is one, which is connected between two diagonal bracing plates 301. The side connection plate 303 extends vertically, and its two ends are respectively intercepted between the two diagonal bracing plates 301. As the only connection component between the diagonal bracing plates 301 and the longitudinal beam-column 1, the side connection plate 303 can enhance the overall stiffness and stability of the joint;

[0030] By arranging the diagonal bracing plates 301 in a cross pattern, the seismic force and shear force can be effectively dispersed, reducing the deformation of the joint. The connection between the side connection plate 303 and the longitudinal beam-column 1 can be evenly transmitted to the longitudinal beam-column 1, preventing local stress concentration, thereby improving the seismic resistance.

[0031] In addition, a different embodiment from the above is that the number of side connection plates 303 is two, which are respectively connected to the outer sides of the two diagonal bracing plates 301 and are arranged in a back-to-back manner. Connecting the side connection plates 303 to the longitudinal beam-column 1 in the device, the side connection plates 303 arranged in a back-to-back manner can facilitate the connection of the side connection plates 303. During installation, the side connection plates 303 have a larger installation space, and can be easily connected whether by bolts or welding.

[0032] The third embodiment is different from the first embodiment in that:

[0033] The connection positions of the two diagonal bracing plates 301 are close to the side connection plate 303, that is, the intersection position of the two diagonal bracing plates 301 is close to the longitudinal side wall of the longitudinal beam-column 1. When the structure is stressed, the diagonal bracing plates 301 form a stable triangular support system through cross arrangement to achieve the transmission of torque. And the connection positions of the diagonal bracing plates 301 are arranged close to the longitudinal beam-column 1. Since the intersection point position of the diagonal bracing plates 301 is closer to the longitudinal beam-column 1, the load of the structure can be dispersed in a way closer to the stress point, thereby reducing the local stress concentration phenomenon and enhancing the overall load-bearing capacity of the structure.

[0034] In the connection between the reinforcement component 3 and the longitudinal beam-column 1 and the transverse beam-column 2, strip holes 305 are provided on the surface of the side connection plate 303 and / or the upper connection plate 302, and anchor bolts corresponding to the strip holes 305 are provided on the longitudinal beam-column 1 and the transverse beam-column 2. By passing the anchor bolts through the strip holes 305, the fixation of the reinforcement component 3 is realized, which is simple and convenient to fix and has a good practical effect.

[0035] During the installation of the reinforcement component 3, it can be fixed by welding the side connecting plate 303 to the longitudinal beam-column 1 and the upper connecting plate 302 to the transverse beam-column 2. Further, the side connecting plate 303 and the upper connecting plate 302 are in a trapezoidal structure, and the large end of the trapezoid is connected to the diagonal bracing plate 301, which increases the welding length between the reinforcement component 3 and the longitudinal beam-column 1 and the transverse beam-column 2, thereby improving the connection stability of the reinforcement component 3. In a preferred embodiment, welding slots 306 are provided on the surface of the side connecting plate 303 and / or the upper connecting plate 302, and the welding slots 306 penetrate through the movable end of the longitudinal beam-column 1, optimizing the welding and force transmission effects. During the welding operation of the side connecting plate 303, the upper connecting plate 302 to the longitudinal beam-column 1 and the transverse beam-column 2, not only can the outer circles of the side connecting plate 303 and the upper connecting plate 302 be welded, but also auxiliary welding can be carried out inside the welding slots 306, thereby increasing the connection strength between the side connecting plate 303, the upper connecting plate 302 and the longitudinal beam-column 1 and the transverse beam-column 2, and the connection strength is higher. Further, a connecting vertical plate 304 is provided between the two upper connecting plates 302, which provides longitudinal support through the connecting vertical plate 304 and can support the two upper connecting plates 302, thereby enhancing the stability and load-bearing capacity of the joint.

[0036] Under seismic action, the failure of the joint will go through the following three processes: First, before the transverse beam-column 2 fails, the reinforcement component 3 and the original structure work together to improve the bearing capacity of the structure; Second, when the end of the transverse beam-column 2 fails, the failure position usually appears at the connection position between the longitudinal beam-column 1 and the transverse beam-column 2, and due to the presence of the reinforcement component 3, it can play a supporting role, and the fracture position will continue to develop towards the area outside the reinforcement component 3. When the fracture strength is relatively large, the transverse beam-column 2 will undergo an overall fracture; Finally, after the transverse beam-column 2 undergoes an overall fracture, at this time, the connection of the reinforcement component 3 can also play a supporting role to ensure that the transverse beam-column 2 does not suddenly fall.

[0037] In summary, the fracture of the transverse beam-column 2 plays a role in consuming seismic energy. The presence of the reinforcement component 3 ultimately achieves the strengthening of the existing beam-column joint and the resistance to progressive collapse, reducing the threat of the structure to human life and property safety under seismic action.

[0038] This joint form is simple and the force transmission is clear. It can not only reinforce the existing joint, but also improve the ability of the joint to resist progressive collapse, thereby greatly enhancing the comprehensive performance of the joint and achieving high social and economic benefits.

[0039] This joint form is simple and the force transmission is clear. It can not only reinforce the existing joint, but also improve the ability of the joint to resist progressive collapse, thereby greatly enhancing the comprehensive performance of the joint and achieving high social and economic benefits; moreover, this joint can be pre-designed and processed in the factory according to needs, which can not only ensure the quality of the components, but also achieve standardized production.

[0040] The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. An anti-seismic reinforcement structure for beam-column joints, comprising a reinforcement component (3) connected to the joint of a longitudinal beam-column (1) and a transverse beam-column (2), characterized in that: The reinforcement component (3) includes two obliquely arranged bracing plates (301) that cross each other. Both ends of the obliquely arranged bracing plates (301) are respectively connected with side connecting plates (303) connected to the longitudinal beam-column (1) and upper connecting plates (302) connected to the transverse beam-column (2).

2. The aseismic reinforcement structure of a beam-column joint according to claim 1, characterized in that: The side connecting plates (303) are perpendicular to the upper connecting plates (302).

3. A seismic strengthening structure for beam-column joints according to claim 1 or 2, characterized in that: The number of the side connecting plates (303) is one, which is connected between the two obliquely arranged bracing plates (301).

4. A seismic strengthening structure for beam-column joints according to claim 1 or 2, characterized in that: The number of the side connecting plates (303) is two, and they are arranged on both sides of the obliquely arranged bracing plates (301) in a back-to-back manner.

5. A seismic strengthening structure for beam-column joints according to claim 1 or 2, characterized in that: The connection positions of the two obliquely arranged bracing plates (301) are close to the side connecting plates (303).

6. The aseismic reinforcement structure of a beam-column joint according to claim 1 or 2, characterized in that: Strip-shaped holes (305) are provided on the surfaces of the side connecting plates (303) and / or the upper connecting plates (302).

7. A seismic reinforcement structure for beam-column joints according to claim 1 or 2, characterized in that: Welding groove holes (306) are provided on the surfaces of the side connecting plates (303) and / or the upper connecting plates (302).

8. The aseismic reinforcement structure of a beam-column joint according to claim 1, characterized in that: A connecting vertical plate (304) is provided between the two upper connecting plates (302).

Images