Beam-column joint reinforcement structure
By using No. 1 and No. 2 locking steel parts to lock alternately at the beam-column joint, and utilizing the mechanical engagement of the locking bolts and nuts, the problem of insufficient rebar connection strength in the existing technology is solved, achieving a high-strength rebar fixing effect with excellent fatigue resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG INNOVATIVE BUILDING TECH RES INST CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-31
AI Technical Summary
The existing beam-column joints have insufficient connection strength at the intersection of transverse and longitudinal reinforcement bars, making them prone to loosening, and they also have poor fatigue resistance and low durability.
The locking steel parts No. 1 and No. 2 are staggered at 90 degrees and closed at the intersection of the transverse and longitudinal steel bars. The locking bolts and nuts work together to form a mechanical engagement to fix the steel bar intersection. The locking parts are made of high-strength materials such as carbon alloy steel or high-strength carbon steel.
It improves the connection strength of the steel bars at beam-column joints, enhances fatigue resistance, prevents loosening, and possesses high rigidity and durability.
Smart Images

Figure CN224578964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a beam-column joint reinforcement structure. Background Technology
[0002] Beams bear the weight and other loads transmitted from the floor slabs and transfer them to the columns; columns, in turn, bear the loads from the beams and their own weight, then transfer these loads to the foundation, and finally to the ground, ensuring the building does not collapse due to the load. Beams and columns are usually precast reinforced concrete. During their manufacturing process, the reinforcing bars at the beam-column joints need to be connected to ensure the stability of the components.
[0003] However, existing beam-column joints typically use wire to bind the intersections of transverse and longitudinal reinforcement bars. This method of fixing results in insufficient connection strength, easy loosening, poor fatigue resistance, and low durability. Therefore, a new beam-column joint reinforcement structure is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a beam-column joint reinforcement structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a beam-column joint reinforcement structure, including a locking member, the locking member being located at the intersection of transverse and longitudinal reinforcement bars, the locking member being composed of a first locking steel member and a second locking steel member, the first locking steel member and the second locking steel member being connected by a locking mechanism, the first locking steel member having a first extension plate on each of its symmetrical sides, and the second locking steel member having a second extension plate on each of its other sides, the first extension plate having a first positioning groove on its sidewall, and the second extension plate having a second positioning groove on its sidewall, the second locking steel member having the same structure as the first locking steel member.
[0006] As a further preferred embodiment of this technical solution, both the No. 1 extension plate and the No. 2 extension plate are integrally formed with the No. 1 locking steel component.
[0007] As a further preferred embodiment of this technical solution, the No. 1 positioning groove traverses the No. 1 locking steel component.
[0008] As a further preferred embodiment of this technical solution, the first positioning slot and the second positioning slot are perpendicular to each other.
[0009] As a further preferred embodiment of this technical solution, the locking mechanism consists of locking bolts and nuts. Connecting holes are provided at the four corners of the first and second locking steel parts. Locking bolts are slidably inserted into the connecting holes, and nuts are threaded onto the ends of the locking bolts.
[0010] As a further preferred embodiment of this technical solution, multiple anti-slip seams are provided on the inner walls of both the No. 1 positioning groove and the No. 2 positioning groove.
[0011] As a further preferred embodiment of this technical solution, the plurality of anti-slip seams are arranged in a linear array.
[0012] This utility model provides a beam-column joint reinforcement structure, which has the following beneficial effects:
[0013] This utility model uses a first locking steel component and a second locking steel component that are staggered at a 90-degree angle at the intersection of the transverse and longitudinal reinforcing bars. Then, through the cooperation of locking bolts and nuts, the first locking steel component and the second locking steel component are closed and locked, thereby fixing the intersection of the transverse and longitudinal reinforcing bars. This fixing structure is more secure and reliable than wire binding, and the components can be mass-produced. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0015] Figure 2 This is a breakdown diagram of the overall structure of this utility model;
[0016] Figure 3 This is a partially enlarged schematic diagram of the overall structure of this utility model;
[0017] Figure 4 This is a structural schematic diagram of the No. 1 locking steel component in this utility model;
[0018] In the diagram: 1. Locking component; 2. Locking steel component No. 1; 3. Locking steel component No. 2; 4. Locking bolt; 5. Nut; 6. Connecting hole; 7. Extension plate No. 1; 8. Extension plate No. 2; 9. Positioning groove No. 1; 10. Positioning groove No. 2; 11. Anti-slip seam. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] This utility model provides a technical solution: such as Figures 1 to 4As shown in this embodiment, a beam-column joint reinforcement structure includes a locking member 1. The locking member 1 is located at the intersection of the transverse reinforcement and the longitudinal reinforcement. The locking member 1 is composed of a first locking steel member 2 and a second locking steel member 3. The first locking steel member 2 and the second locking steel member 3 are connected by a locking mechanism. A first extension plate 7 is provided on each of the symmetrical sides of the first locking steel member 2, and a second extension plate 8 is provided on the other two sides of the first locking steel member 2. The first extension plate 7 and the second extension plate 8 are integrally formed with the first locking steel member 2. A first positioning groove 9 is opened on the side wall of the first extension plate 7, and the first positioning groove 9 runs through the first locking steel member 2. A second positioning groove 10 is opened on the side wall of the second extension plate 8. The first positioning groove 9 and the second positioning groove 10 are perpendicular to each other. The second locking steel member 3 has the same structure as the first locking steel member 2.
[0021] The locking mechanism consists of locking bolts 4 and nuts 5. Connecting holes 6 are provided at the four corners of locking steel parts 2 and 3. Locking bolts 4 are slidably inserted into the connecting holes 6, and nuts 5 are threaded onto the ends of locking bolts 4.
[0022] In use, lock the first locking steel piece 2 and lock the second locking steel piece 3 at a 90-degree angle and close them at the intersection of the horizontal and vertical reinforcing bars. This closes the first positioning groove 9 of the first locking steel piece 2 and the second positioning groove 10 of the second locking steel piece 3, clamping the horizontal reinforcing bar. The second positioning groove 10 of the first locking steel piece 2 and the first positioning groove 9 of the second locking steel piece 3 close, clamping the vertical reinforcing bar. Then, pass the locking bolt 4 through the connecting hole 6 and tighten it with the nut 5 to fix the intersection of the horizontal and vertical reinforcing bars.
[0023] Among them, multiple anti-slip seams 11 are provided on the inner walls of positioning groove 9 and positioning groove 10, and the multiple anti-slip seams 11 are arranged in a straight line array.
[0024] The anti-slip joint 11 can improve the gripping force between the locking element 1 and the reinforcing bar.
[0025] This utility model provides a beam-column joint reinforcement structure, the specific working principle of which is as follows:
[0026] In use, locking steel parts 2 and 3 are staggered at 90 degrees and closed at the intersection of the transverse and longitudinal reinforcing bars, so that the first positioning groove 9 of locking steel part 2 and the second positioning groove 10 of locking steel part 3 are closed, clamping the transverse reinforcing bar. The second positioning groove 10 of locking steel part 2 and the first positioning groove 9 of locking steel part 3 are closed, clamping the longitudinal reinforcing bar. Then, the locking bolt 4 is passed through the connecting hole 6 and locked with the nut 5, thus fixing the intersection of the transverse and longitudinal reinforcing bars. Compared with the disadvantages of wire binding connection, which is insufficient strength, easy to loosen, poor fatigue resistance and low durability, this fixing method uses bolts for locking. The pre-tightening force is generated by mechanical engagement (thread tightening), resulting in high connection strength, good rigidity and not easy to loosen. Among them, the locking bolt 4 is made of high-strength material, such as carbon alloy steel (such as 40Cr, 35CrMo) or high-strength carbon steel (such as No. 45 steel).
[0027] It should be noted that after locking steel parts 2 and 3 are closed at the intersection of the transverse and longitudinal reinforcing bars, there is a certain gap between them. (See attached diagram.) Figure 3 At point A, the spacing A facilitates the tightening of bolt 4 and nut 5, and can be referenced from the clamp structure.
[0028] It should also be noted that the dimensions of the device need to be adjusted for steel bars of different thicknesses.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reinforced structure of a beam-column joint comprising a locking element (1), characterized in that: The locking component (1) is located at the intersection of the transverse and longitudinal reinforcing bars. The locking component (1) is composed of a first locking steel component (2) and a second locking steel component (3). The first locking steel component (2) and the second locking steel component (3) are connected by a locking mechanism. The first locking steel component (2) has a first extension plate (7) on each of its symmetrical sides. The second locking steel component (2) has a second extension plate (8) on each of its other sides. The first extension plate (7) has a first positioning groove (9) on its side wall. The second extension plate (8) has a second positioning groove (10) on its side wall. The second locking steel component (3) has the same structure as the first locking steel component (2).
2. The reinforced beam-column joint structure of claim 1, wherein: Both the No. 1 extension plate (7) and the No. 2 extension plate (8) are integrally formed with the No. 1 locking steel piece (2).
3. The reinforced beam-column joint structure of claim 1, wherein: The first positioning groove (9) runs through the first locking steel piece (2).
4. The reinforced beam-column joint structure of claim 1, wherein: The first positioning slot (9) and the second positioning slot (10) are perpendicular to each other.
5. The reinforced beam-column joint structure of claim 1, wherein: The locking mechanism consists of a locking bolt (4) and a nut (5). The four corners of the first locking steel part (2) and the second locking steel part (3) are provided with connecting holes (6). The locking bolt (4) is slidably inserted into the connecting hole (6), and the end of the locking bolt (4) is threaded with a nut (5).
6. The reinforced beam-column joint structure of claim 1, wherein: Multiple anti-slip seams (11) are provided on the inner walls of both the No. 1 positioning groove (9) and the No. 2 positioning groove (10).
7. The reinforced beam-column joint structure of claim 6, wherein: The multiple anti-slip seams (11) are arranged in a straight line array.