Concrete reinforcing structure of masonry
By using a combination of concrete reinforcement layer and tie bars in masonry structures, and forming a strong connection with metal sleeves and traction components, the problem of insufficient bonding force between tie bars and concrete reinforcement is solved, thereby improving the seismic performance and load-bearing capacity of masonry structures.
Patent Information
- Application Number
- CN202423200132.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing methods for strengthening slab walls, the bond strength between tie bars and concrete reinforcement is relatively limited, making it difficult to effectively improve the seismic performance and load-bearing capacity of masonry structures.
The structure employs a combination of a concrete reinforcement layer and reinforcing bars. By embedding a steel mesh within the concrete reinforcement layer and using metal sleeves and traction devices to firmly connect the reinforcing bars to the steel mesh, and combining it with high-ductility concrete material to enhance the bonding strength.
It enhances the integrity and seismic performance of masonry structures, improves the strength and durability of concrete reinforcement layers, reduces cracking, and enhances the reinforcement effect.
Smart Images
Figure CN223621295U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction technology, and in particular to a concrete reinforcement structure for masonry. Background Technology
[0002] Masonry structures are widely used in multi-story residential buildings, small industrial plants, and multi-story office buildings. However, due to the relatively low tensile, shear, and bending strength of masonry materials, as well as their high brittleness and poor deformation capacity, their load-bearing capacity drops rapidly after cracking during an earthquake. Therefore, effective reinforcement measures are needed to improve the load-bearing capacity and seismic performance of masonry.
[0003] Currently, common techniques for masonry reinforcement include repair and grouting methods, surface layer or panel wall reinforcement methods, etc. Among these, panel wall reinforcement involves pouring or spraying a certain thickness of reinforced concrete onto the side of the masonry wall to form a shear wall. This method can effectively improve the wall's seismic resistance and load-bearing capacity. During panel wall reinforcement construction, tie bars are typically anchored into the masonry. These tie bars are usually inserted by drilling holes in the masonry. The tensile force of the tie bars on the reinforcing bars in the concrete is limited by the encapsulation force of the masonry structure on the tie bars; therefore, the bonding force between the tie bars and the reinforcing bars is relatively limited and needs improvement. Utility Model Content
[0004] In order to improve the bonding force between the tie bars and the steel bars in the concrete in the construction method of slab wall reinforcement, this application provides a concrete reinforcement structure for masonry.
[0005] The concrete reinforcement structure for masonry provided in this application adopts the following technical solution:
[0006] A concrete reinforcement structure for masonry includes a concrete reinforcement layer and tie bars. The concrete reinforcement layer has two layers, which are respectively attached to and reinforce both sides of the masonry structure. A steel mesh is embedded in the concrete reinforcement layer. The tie bars are fitted with metal sleeves, which are welded to the tie bars and embedded in the masonry structure. One end of each tie bar has a bent section hooked to the steel mesh, and the other end has a traction member for moving the tie bar axially, bringing the bent section closer to the masonry structure. The traction member and the bent section of the tie bar are embedded in the concrete reinforcement layer on different sides.
[0007] By adopting the above technical solution, during the masonry reinforcement construction process, anchor holes with both ends penetrating are first drilled in the masonry. The diameter of the anchor holes is slightly smaller than the outer diameter of the metal sleeve. Then, the metal sleeve is nailed into the anchor holes. Next, the end of the tie bar away from the bending section is passed through the metal sleeve, and the tie bar is pulled by a traction device at the end away from the bending section, so that the bending section of the tie bar hooks onto the steel mesh, resulting in a large bonding force between the tie bar and the steel mesh. The masonry structure is connected to the steel mesh embedded in the concrete reinforcement layer by the tie bar, forming a high degree of integrity between the concrete reinforcement layer and the masonry structure, which is beneficial to improving the reinforcement effect of the concrete reinforcement layer on the masonry structure.
[0008] Optionally, the material of the concrete reinforcement layer is high-ductility concrete.
[0009] By adopting the above technical solution, high-ductility concrete, as a material for concrete reinforcement layers, is beneficial to improving the strength and durability of concrete reinforcement layers and reducing cracking of concrete reinforcement layers.
[0010] Optionally, the outer peripheral wall of the metal sleeve is provided with barbs, the tips of which are inclined toward the bent section.
[0011] By adopting the above technical solution, the barbs on the outer peripheral wall of the metal sleeve can hook onto the anchoring holes on the masonry, thereby enhancing the connection between the metal sleeve and the masonry.
[0012] Optionally, the traction component is a binding wire, which is bound to the reinforcing mesh; the tie bars are connected to the reinforcing mesh on different sides through the bent section and the binding wire.
[0013] By adopting the above technical solution, one end of the tie bar is hooked to the steel mesh on one side using a bent section, and the other end of the tie bar is connected to the steel mesh on the other side using a binding wire. When the binding wire is tightened, the steel mesh on both sides of the masonry can be pressed tightly against the two sides of the masonry, so that the position of the steel mesh remains stable, which facilitates the construction of the concrete reinforcement layer and reduces the thickness requirement of the concrete reinforcement layer.
[0014] Optionally, the angle between the bent section and the main part of the tie bar is between 85° and 90°.
[0015] By adopting the above technical solution, when the bent section hooks the steel mesh, the bent section will undergo deformation with a larger bend angle. By making the included angle between the bent section and the tie steel bar less than 90 degrees, when the bend angle of the bent section becomes larger, it is not easy for the end to curl up.
[0016] Optionally, the end of the tie bar away from the bent section is provided with a through hole for threading the binding wire.
[0017] By adopting the above technical solution, multiple tie bars can be connected simultaneously using the same steel wire by setting through holes in the tie bars, thereby reducing the workload of tying the steel wire.
[0018] Optionally, a limiting steel bar is welded to one end of the tie bar away from the bent section, and the limiting steel bar hooks onto the steel mesh.
[0019] By adopting the above technical solution, after the limiting steel bar and the tie steel bar are welded, the limiting steel bar acts on the steel mesh. In this way, even if the binding steel wire rusts and breaks during subsequent use, the steel mesh can still maintain the connection with the tie steel bar through the limiting steel bar.
[0020] Optionally, the two ends of the limiting steel bar are welded and fixed to different tie steel bars respectively.
[0021] By adopting the above technical solution, the two ends of the limiting steel bar are welded and fixed to different tie steel bars, making the structure of the limiting steel bar more stable and enabling the limiting steel bar to exert a stronger limiting effect on the steel mesh.
[0022] Optionally, the end of the bent section is provided with a limiting hook, which is used to hook the horizontal reinforcing bars of the steel mesh; the end of the tie bar away from the bent section is provided with an external thread, and the external thread is threaded with a nut, which is used to abut against the masonry structure; the nut serves as a traction element.
[0023] By adopting the above technical solution, after the end of the tie bar away from the bending section passes through the masonry structure, the nut is locked with the external thread of the tie bar, thereby hooking the bending section onto the steel mesh. When the nut is locked, the bending section of the tie bar hooks onto the steel mesh, and the limiting hook hooks onto one of the horizontal steel bars of the steel mesh, making it difficult for the tie bar to drive the nut to rotate, which helps to keep the position of the tie bar stable.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. The end of the tie bar furthest from the bend is pulled by a traction device, causing the bend of the tie bar to hook onto the reinforcing mesh, resulting in a strong bond between the tie bar and the mesh. The masonry structure is connected to the reinforcing mesh embedded in the concrete reinforcement layer by the tie bar, creating a high degree of integrity between the concrete reinforcement layer and the masonry structure, which enhances the reinforcement effect of the concrete reinforcement layer on the masonry structure.
[0026] 2. High-ductility concrete, as a material for concrete reinforcement layers, is beneficial to improving the strength and durability of concrete reinforcement layers and reducing cracking. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of Example 1.
[0028] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.
[0029] Figure 3 This is a schematic diagram of the structure of Example 2.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Concrete reinforcement layer; 2. Steel mesh; 21. Horizontal reinforcement; 22. Vertical reinforcement; 3. Tie reinforcement; 301. First tie reinforcement; 302. Second tie reinforcement; 31. Bend section; 32. Through hole; 33. Limiting hook; 34. External thread; 4. Metal sleeve; 41. Barb; 51. Binding wire; 52. Nut; 6. Limiting reinforcement; 7. Masonry structure. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0033] Example 1
[0034] This application discloses a concrete reinforcement structure for masonry. (Refer to...) Figure 1 The concrete reinforcement structure of the masonry includes a concrete reinforcement layer 1, a steel mesh 2, and tie bars 3. The concrete reinforcement layer 1 is made of high-ductility concrete and has two layers, which are used to attach and reinforce both sides of the masonry structure 7. The steel mesh 2 is embedded in the concrete reinforcement layer 1 and has horizontal bars 21 and vertical bars 22. The tie bars 3 are used for anchoring and connecting with the masonry structure 7. The tie bars 3 have a bent section 31, which is hooked to the steel mesh 2. The included angle between the bent section 31 and the main body of the tie bars 3 is between 85° and 90°.
[0035] Reference Figure 1 The tie bar 3 is fitted with a metal sleeve 4, which is welded and fixed to the tie bar 3. The metal sleeve 4 is used to be embedded in the masonry structure 7. The outer peripheral wall of the metal sleeve 4 is provided with barbs 41, which are formed by cutting grooves along the outer peripheral surface of the metal sleeve 4. The tips of the barbs 41 are inclined towards the bending section 31.
[0036] Reference Figure 1 and Figure 2A bent section 31 is located at one end of the tie bar 3. A through hole 32 is provided at the end of the tie bar 3 furthest from the bent section 31. A binding wire 51 is threaded through the through hole 32 of the tie bar 3. The same binding wire 51 passes through multiple through holes 32 of the tie bars 3 simultaneously, and the binding wire 51 is tied to the reinforcing mesh 2. The tie bar 3 is connected to the reinforcing mesh 2 on different sides through the bent section 31 and the binding wire 51. The binding wire 51 acts as a traction element for the tie bar 3, causing the bent section 31 of the tie bar 3 to move closer to the masonry structure 7.
[0037] In another embodiment, each tie bar 3 can be independently equipped with a binding wire 51, so that each tie bar 3 is connected to the steel mesh 2 through an independent binding wire 51.
[0038] Reference Figure 1 A limiting steel bar 6 is welded to one end of the tie steel bar 3 away from the bending section 31, and the limiting steel bar 6 hooks onto the steel mesh 2. The two ends of the limiting steel bar 6 are welded to different tie steel bars 3 respectively.
[0039] The implementation principle of a concrete reinforcement structure for masonry in this application embodiment is as follows: During the masonry reinforcement construction, anchor holes with both ends penetrating are first drilled in the masonry. The diameter of the anchor holes is slightly smaller than the outer diameter of the metal sleeve 4. Then, the metal sleeve 4 is nailed into the anchor holes. Next, the end of the tie bar 3 away from the bending section 31 is passed through the metal sleeve 4. Then, the binding wire 51 is passed through the through holes 32 on multiple tie bars 3 in sequence and tied to the steel mesh 2. Each time the binding wire 51 passes through a through hole 32, it is wrapped with the steel bar of the steel mesh 2, and then passes through the next through hole 32. Finally, the end of the binding wire 51 is tied and fixed. In this way, one end of the tie bar 3 can be hooked to the steel mesh 2 on one side using the bent section 31, and the other end of the tie bar 3 can be connected to the steel mesh 2 on the other side using the binding wire 51. When the binding wire 51 is tightened, the steel mesh 2 on both sides of the masonry can be pressed tightly against the two sides of the masonry, so that a large bonding force is formed between the tie bar 3 and the steel mesh 2.
[0040] Example 2
[0041] The difference between this embodiment and embodiment 1 is that the structure of the tie bar 3 in this embodiment is different from that in embodiment 1.
[0042] In this embodiment, the tie bar 3 does not have a through hole 32, nor a binding wire 51 that is connected to the through hole 32, and the limiting bar 6 is not provided.
[0043] Reference Figure 3In this embodiment, the end of the bent section 31 of the tie bar 3 is provided with a limiting hook 33, which is used to hook the horizontal bar 21 of the steel mesh 2; the end of the tie bar 3 away from the bent section 31 is provided with an external thread 34, and the external thread 34 is threadedly connected to a nut 52, which is used to abut against the masonry structure 7.
[0044] The tie bar 3 includes a first tie bar 301 and a second tie bar 302, and the first tie bar 301 and the second tie bar 302 have different orientations.
[0045] When the end of the tie bar 3 away from the bending section 31 passes through the masonry structure 7, the nut 52 is locked with the external thread 34 of the tie bar 3, thereby hooking the bending section 31 onto the steel mesh 2. When the nut 52 is locked, the bending section 31 of the tie bar 3 hooks onto the steel mesh 2, and the limiting hook 33 hooks onto one of the horizontal bars of the steel mesh 2, making it difficult for the tie bar 3 to drive the nut 52 to rotate, which helps to keep the position of the tie bar 3 stable.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A concrete reinforcement structure for masonry, characterized in that: The structure includes a concrete reinforcement layer (1) and tie bars (3). The concrete reinforcement layer (1) has two layers, which are respectively used to attach and reinforce the two sides of the masonry structure (7). The concrete reinforcement layer (1) is embedded with a steel mesh (2). The tie bars (3) are fitted with metal sleeves (4). The metal sleeves (4) are welded and fixed to the tie bars (3). The metal sleeves (4) are used to be embedded in the masonry structure (7). One end of the tie bars (3) is provided with a bent section (31). The bent section (31) is hooked to the steel mesh (2). The other end of the tie bars (3) is provided with a traction member. The traction member is used to drive the tie bars (3) to move axially, so that the bent section (31) is close to the masonry structure (7). The traction member and the bent section (31) of the tie bars (3) are respectively embedded in the concrete reinforcement layer (1) on different sides.
2. The concrete reinforcement structure for masonry according to claim 1, characterized in that: The material of the concrete reinforcement layer (1) is high ductility concrete.
3. The concrete reinforcement structure for masonry according to claim 1, characterized in that: The outer peripheral wall of the metal sleeve (4) is provided with barbs (41), and the tips of the barbs (41) are inclined toward the bent section (31).
4. A concrete reinforcement structure for masonry according to claim 1, characterized in that: The traction component is a binding wire (51), which is tied to the steel mesh (2); the tie bar (3) is connected to the steel mesh (2) on different sides through the bending section (31) and the binding wire (51).
5. A concrete reinforcement structure for masonry according to claim 4, characterized in that: The included angle between the bent section (31) and the main part of the tie bar (3) is between 85° and 90°.
6. A concrete reinforcement structure for masonry according to claim 4, characterized in that: The tie bar (3) has a through hole (32) at one end away from the bent section (31) for threading the binding wire (51).
7. A concrete reinforcement structure for masonry according to claim 4, characterized in that: The tie bar (3) is welded to a limiting bar (6) at one end away from the bending section (31), and the limiting bar (6) hooks the steel mesh (2).
8. A concrete reinforcement structure for masonry according to claim 7, characterized in that: The two ends of the limiting steel bar (6) are respectively welded and fixed to the different tie steel bars (3).
9. A concrete reinforcement structure for masonry according to claim 1, characterized in that: The end of the bent section (31) is provided with a limiting hook (33), which is used to hook the horizontal steel bar (21) of the steel mesh (2); the tie bar (3) is provided with an external thread (34) at one end away from the bent section (31), and the external thread (34) is threaded with a nut (52), which is used to abut against the masonry structure (7); the nut (52) serves as a traction element.