A reinforcing structure for an old building wall

Abstract

The application discloses a reinforcing structure of an old building wall body, and belongs to the technical field of building reinforcement. In order to solve the problem that the old building wall body is prone to collapse during reinforcement, the reinforcing structure comprises a bottom foundation reinforcing unit and a wall surface reinforcing unit. The bottom foundation reinforcing unit is wrapped around the root of the target wall body and is fixedly connected with the target wall body. The wall surface reinforcing unit is arranged on the reinforcing side of the target wall body, the bottom of the wall surface reinforcing unit is fixedly connected with the top of the bottom foundation reinforcing unit, and the side of the wall surface reinforcing unit close to the target wall body is fixedly connected with the reinforcing side of the target wall body. The application is mainly used as a reinforcing structure of a masonry in an old building.

Description

Technical Field

[0001] This utility model belongs to the field of building reinforcement technology, specifically relating to a reinforcement structure for the walls of old buildings. Background Technology

[0002] The walls of old buildings are mostly masonry structures. Due to the relatively weak bonding properties of mortar, brick masonry walls are not tightly connected, resulting in a loose structure. Under load, they are prone to cracking and may collapse, posing serious safety hazards. For brick masonry buildings with historical value, the restored and reinforced walls not only need to meet mechanical performance requirements but also have extremely high standards for flatness and aesthetics. Existing wall reinforcement structures generally involve anchoring rebars inside the wall, then attaching steel mesh to the extended ends of the rebars, and finally pouring reinforced concrete using the mesh as a framework. However, this reinforcement method is not well implemented for the walls of old buildings. This is because the walls and bases of old buildings are severely eroded by the environment, resulting in weak inherent strength and support. Directly reinforcing the wall surface with rebar and mesh can lead to uneven weight distribution on the reinforced side, increasing the risk of collapse. Therefore, to eliminate the collapse risk during the reinforcement of old building walls, a new reinforcement structure for old building walls needs to be developed. Utility Model Content

[0003] This utility model aims to solve the problem of potential collapse hazards in the reinforcement of old building walls, and thus provides a reinforcement structure for old building walls;

[0004] A reinforcement structure for the wall of an old building includes a bottom foundation reinforcement unit and a wall reinforcement unit. The bottom foundation reinforcement unit is wrapped around the base of the target wall and fixedly connected to the target wall. The wall reinforcement unit is set on the reinforcement side of the target wall, and the bottom of the wall reinforcement unit is fixedly connected to the top of the bottom foundation reinforcement unit. The side of the wall reinforcement unit closest to the target wall is fixedly connected to the reinforcement side of the target wall.

[0005] Furthermore, the wall reinforcement unit has two connecting ribs symmetrically arranged along the centerline of the target wall length direction on the side facing the target wall, and the length extension direction of the connecting ribs is the same as the height extension direction of the target wall. The reinforced side of the target wall has two rib grooves symmetrically machined along the centerline of the target wall length direction, and each rib groove is correspondingly matched with a connecting rib.

[0006] Furthermore, the rib groove is a wedge-shaped groove, and the small opening side of the rib groove is connected to the reinforcement side of the target wall. The connecting rib is a wedge-shaped rib, and the small opening side of the connecting rib is integrally formed with the wall reinforcement unit.

[0007] Furthermore, the bottom foundation reinforcement unit includes two side reinforcement components and multiple horizontal bar groups. The multiple horizontal bar groups are inserted into the root of the target wall at equal intervals from top to bottom. Each horizontal bar group includes multiple horizontal bars. The multiple horizontal bars are arranged at equal intervals along the length extension direction of the target wall. Both ends of each horizontal bar extend to the front and rear sides of the target wall. Each side reinforcement component is correspondingly set on one side of the root of the target wall, and each side reinforcement component is fixedly connected to the multiple horizontal bars and the target wall.

[0008] Furthermore, the side reinforcement component includes a side steel cage and a root casting layer. The side steel cage is set on one side of the root of the target wall, and the side steel cage is fixedly connected to multiple horizontal reinforcing bars. The root casting layer is cast on the side steel cage and is fixedly connected to the target wall.

[0009] Furthermore, multiple connecting vertical bars are sequentially erected on the top of the side reinforcement component corresponding to the target wall reinforcement side along the length extension direction of the target wall. The bottom end of each connecting vertical bar passes through the root pouring layer and is fixedly connected to the side steel cage. Each connecting vertical bar is fixedly connected to the root pouring layer.

[0010] Furthermore, the root casting layer in the corresponding side reinforcement component of the target wall reinforcement side extends into the two rib grooves of the target wall reinforcement side;

[0011] Furthermore, the wall reinforcement unit includes a side steel mesh and a wall casting layer. The side steel mesh has two rib meshes on the side closest to the target wall. One end of each rib mesh is fixedly connected to the side steel mesh, and the other end of each rib mesh extends into a rib groove. The bottom of the side steel mesh is fixedly connected to multiple connecting vertical bars. The bottom end of each rib mesh is inserted into the root casting layer at the bottom of the corresponding rib groove. The wall casting layer is cast on the side steel mesh and the two rib meshes, and the wall casting layer is fixedly connected to the target wall and the corresponding root casting layer.

[0012] The beneficial effects of this application compared to the prior art are:

[0013] This application provides an innovative reinforcement structure for the walls of old buildings, employing a combination of wedge-shaped grooves and UHPC ultra-high performance materials. By combining foundation reinforcement with brick masonry wall reinforcement, the overall strength of the brick masonry wall after UHPC reinforcement is ensured. Targeted wall panel repair and reinforcement are achieved, reducing material waste and aligning with green building standards. Furthermore, in this reinforcement structure, the wall reinforcement units are primarily supported by the bottom foundation reinforcement units, effectively distributing the load-bearing pressure of the wall. Connecting ribs extending from the wall reinforcement units into the wall interior further enhance the overall stress performance of the wall panels during stress. The reinforcement method, using wedge-shaped grooves to fix the wedge-shaped ribs, targets potential damage trends in the brick masonry structure, creating localized restraint columns within the wall. This provides a new solution to the cyclical and environmental challenges in the repair and reinforcement of traditional historical masonry buildings. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of the reinforcement structure described in this application installed behind the target wall;

[0015] Figure 2 This is an exploded view of the reinforced structure described in this application;

[0016] Figure 3 This is a schematic diagram showing the arrangement of the rib grooves in the target wall described in this application;

[0017] Figure 4 This is a schematic diagram showing the arrangement of the side steel mesh and the rib mesh in the reinforced structure described in this application;

[0018] Figure 5 This is a schematic diagram of the bottom foundation reinforcement unit in the reinforcement structure described in this application;

[0019] In the diagram, 1 is the side reinforcement cage, 2 is the root pouring layer, 3 is the horizontal dowel bar, 4 is the target wall, 5 is the connecting vertical bar, 6 is the side reinforcement mesh, 7 is the wall surface pouring layer, 8 is the rib mesh, and 9 is the connecting rib. Detailed Implementation

[0020] Specific implementation method one: Combining Figures 1 to 5 This embodiment describes a reinforcement structure for the wall of an old building. The reinforcement structure includes a bottom foundation reinforcement unit and a wall reinforcement unit. The bottom foundation reinforcement unit is wrapped around the base of the target wall 4 and fixedly connected to the target wall 4. The wall reinforcement unit is located on the reinforcement side of the target wall 4, and the bottom of the wall reinforcement unit is fixedly connected to the top of the bottom foundation reinforcement unit. The side of the wall reinforcement unit closest to the target wall 4 is fixedly connected to the reinforcement side of the target wall 4.

[0021] In this embodiment, an innovative bottom foundation reinforcement was carried out at the base of the target wall 4. By reinforcing the base of the target wall 4, the overall stability of the target wall 4 was improved. At the same time, the bottom foundation reinforcement can also serve as a support for the wall reinforcement unit, effectively distributing the load on the target wall 4, avoiding uneven weight distribution on the reinforced side of the wall, and eliminating the risk of collapse that may occur when reinforcing old building walls.

[0022] Specific Implementation Method Two: Combining Figures 1 to 5 This embodiment differs from Specific Embodiment 1 in that the wall reinforcement unit has two symmetrical connecting ribs 9 along the centerline of the target wall 4 on the side facing the target wall 4, and the length extension direction of the connecting ribs 9 is the same as the height extension direction of the target wall 4. Two rib grooves 41 are symmetrically machined along the centerline of the target wall 4 on the reinforced side, and each rib groove 41 corresponds to one connecting rib 9. Other components and connection methods are the same as in Specific Embodiment 1.

[0023] Specific implementation method three: Combining Figures 1 to 5 This embodiment differs from Specific Embodiment Two in that the rib groove 41 is a wedge-shaped groove, and the small opening side of the rib groove 41 is connected to the reinforced side of the target wall 4. The connecting rib 9 is a wedge-shaped rib, and the small opening side of the connecting rib 9 is integrally formed with the wall reinforcement unit. Other components and connection methods are the same as in Specific Embodiment Two.

[0024] Based on the descriptions of specific implementation methods two and three, the overall stress performance of the wall panel is effectively improved by the cooperation of connecting rib 9 and rib groove 41 during the stress process. The reinforcement method of fixing the wedge rib plate by wedge groove is used to specifically reinforce the possible failure trend in the brick masonry structure. By combining wall reinforcement with foundation reinforcement, the overall performance of the wall and foundation structure is improved. The wedge groove method creates a local constraint effect inside the wall. The expansion and shaping of connecting rib 9 improves the connection tightness between the target wall 4 and the wall reinforcement unit, thereby improving the collapse resistance of the reinforced target wall 4.

[0025] Specific implementation method four: Combination Figures 1 to 5This embodiment differs from Specific Embodiment Three in that the bottom foundation reinforcement unit includes two side reinforcement components and multiple horizontal reinforcing bar groups. These horizontal reinforcing bar groups are inserted equidistantly from top to bottom at the base of the target wall 4. Each horizontal reinforcing bar group includes multiple horizontal reinforcing bars 3, which are equidistantly arranged along the length of the target wall 4. Both ends of each horizontal reinforcing bar 3 extend to the front and rear sides of the target wall 4. Each side reinforcement component is correspondingly positioned on one side of the base of the target wall 4, and each side reinforcement component is fixedly connected to the multiple horizontal reinforcing bars 3 and the target wall 4. Other components and connection methods are the same as in Specific Embodiment Three.

[0026] Specific Implementation Method Five: Combining Figures 1 to 5 This embodiment differs from Specific Embodiment Four in that the side reinforcement component includes a side steel cage 1 and a root casting layer 2. The side steel cage 1 is located on one side of the root of the target wall 4, and is fixedly connected to multiple horizontal reinforcing bars 3. The root casting layer 2 is cast on the side steel cage 1 and is fixedly connected to the target wall 4. Other components and connection methods are the same as in Specific Embodiment Four.

[0027] Based on the descriptions of specific implementation methods four and five, the arrangement height of the bottom foundation reinforcement unit in this embodiment is generally set based on 1 / 6 to 1 / 8 of the total wall height, with a specific dimension not exceeding 500mm. Multiple sets of horizontal reinforcing bars are inserted at the base of the target wall 4 to reinforce the base of the target wall 4. At the same time, both ends of the horizontal reinforcing bars extend beyond the outside of the wall to cooperate with the positioning of the side steel cage 1. The side steel cage 1 and the horizontal reinforcing bars 3 in the bottom foundation reinforcement unit together form the bottom reinforcement mesh structure. The side steel cage 1 and the horizontal reinforcing bars 3 are fixed together by binding or welding. The reinforcing bars in the horizontal reinforcing bars 3 and the side steel cage 1 are all 8-10mm HRB400 grade steel bars. The root pouring layer 2 is poured with UHPC high-performance concrete to ensure complete wrapping of the wall base during pouring. The use of UHPC high-performance concrete as a reinforcement material effectively extends the service life of the wall panel. During use, it avoids negative impacts on the entire building foundation caused by the weight of the reinforcement material itself, thus improving the overall practicality of masonry wall reinforcement. Thanks to its lightweight and high-strength characteristics, the size and thickness of the reinforced surface can be flexibly controlled during use, making it widely applicable in various reinforcement situations. It achieves high-quality engineering construction that saves materials and space, significantly improving overall economic benefits.

[0028] Specific Implementation Method Six: Combination Figures 1 to 5This embodiment differs from Specific Embodiment Five in that, on the top of the side reinforcement component corresponding to the reinforced side of the target wall 4, multiple connecting vertical bars 5 are sequentially erected along the length of the target wall 4. The bottom end of each connecting vertical bar 5 passes through the root casting layer 2 and is fixedly connected to the side reinforcement cage 1. Each connecting vertical bar 5 is fixedly connected to the root casting layer 2. Other components and connection methods are the same as in Specific Embodiment Five.

[0029] Specific implementation method seven: Combining Figures 1 to 5 This embodiment differs from Specific Embodiment Six in that the root casting layer 2 in the side reinforcement component corresponding to the reinforced side of the target wall 4 extends into the two rib grooves 41 on the reinforced side of the target wall 4. Other components and connection methods are the same as in Specific Embodiment Six.

[0030] Specific implementation method eight: Combination Figures 1 to 5 This embodiment differs from specific embodiment seven in that the wall reinforcement unit includes a side steel mesh 6 and a wall casting layer 7. The side steel mesh 6 has two rib meshes 8 on the side closest to the target wall 4. One end of each rib mesh 8 is fixedly connected to the side steel mesh 6, and the other end extends into a rib groove 41. The bottom of the side steel mesh 6 is fixedly connected to multiple connecting vertical bars 5. The bottom end of each rib mesh 8 is inserted into the root casting layer 2 at the bottom of the corresponding rib groove 41. The wall casting layer 7 is cast on the side steel mesh 6 and the two rib meshes 8, and the wall casting layer 7 is fixedly connected to the target wall 4 and the corresponding root casting layer 2. Other components and connection methods are the same as in specific embodiment seven.

[0031] The following description, based on specific embodiments six through eight, describes how connecting vertical bars 5 are used to position and connect with the side steel mesh 6, ensuring the stability of the side steel mesh 6 structure. The connecting vertical bars 5 and the side steel mesh 6 are connected by welding or binding. The rib mesh 8, as the built-in reinforcement of the connecting rib 9, is used to improve the strength of the connecting rib 9. During installation, the rib mesh 8 and the side steel mesh 6 are installed separately, and after being arranged separately, they are connected by welding or binding. A root layer 2 is also poured at the bottom of the rib groove 41 to provide a stable foundation for the installation of the rib mesh 8. Considering that the old building walls have been eroded over a long period, their internal structure is relatively loose, making it impossible to properly reinforce the bottom of the rib mesh 8. The wrapping of the rib mesh 8 can easily affect the stability of the rib mesh 8. The poured concrete layer has a certain working strength. By drilling holes in the concrete layer and injecting glue, and then inserting the rib mesh 8 into the concrete layer, the reliability of the rib mesh 8 arrangement and the stability during operation can be guaranteed. The steel structure in the side steel mesh 6 and the rib mesh 8 both use 8~10mm HRB400 grade steel bars. The arrangement height of the side steel mesh 6 and the rib mesh 8 is generally 1000~3000mm. The wall pouring layer 7 is also poured using UHPC high-performance concrete. When pouring the wall pouring layer 7, the mesh frame composed of the rib mesh 8 and the side steel mesh 6 is poured as a whole to realize the wall reinforcement unit and the two connecting ribs 9 are poured into shape as a whole.

[0032] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0033] Working principle

[0034] The reinforcement structure provided in this application uses UHPC high-strength concrete as the reinforcement material. Considering the existing brick masonry structure (wall structure), its internal space is relatively small, with narrow passageways and doorways. Larger formwork cannot be installed, and it is difficult to deliver concrete to designated locations during pouring, increasing construction difficulty. When using UHPC reinforcement, no formwork is required; it can be directly formed in one step using a troweling method. UHPC has good fluidity and adhesion, preventing issues such as blistering or peeling after troweling. UHPC also has high toughness, maintaining its shrinkage and crack resistance even if the brick masonry absorbs some of the moisture. Under the same load, the cross-sectional area of ​​the UHPC reinforcement can be significantly reduced, saving interior space during reinforcement. Simultaneously, the reduced thickness of the reinforcement layer also reduces on-site construction work and improves reinforcement efficiency. UHPC materials have high freeze-thaw resistance and durability, which can improve the quality of surface reinforcement for cross-seasonal construction in cold regions, and also improve the reinforcement durability of existing masonry industrial buildings for harsh indoor environments.

[0035] The reinforcing bars in the reinforced structure provided in this application (including horizontal dowel bars 3, structural reinforcing bars in the side steel cage 1, structural reinforcing bars in the side steel mesh 6, and structural reinforcing bars in the rib mesh 8) are all made of 8~10mm HRB400 grade steel bars. The arrangement height of the side steel mesh 6 and the rib mesh 8 is 1000~3000mm. The spacing of the horizontal reinforcing bars in the side steel mesh 6 is 100~300mm, and the spacing of the horizontal reinforcing bars in the rib mesh 8 is 200~400mm. Given the limited depth of the rib groove 41, the rib mesh 8 is usually supported by two vertical reinforcing bars.

[0036] The reinforcement structure provided in this application requires pre-processing wedge-shaped rib grooves 41 on the target wall 4 during construction. The spacing between two adjacent rib grooves 41 is 1000~2000mm. The cross-sectional shape is smaller on the outside and wider on the inside. The width of the outside is controlled at 20~40mm and the width of the inside is controlled at 30~80mm. The groove depth is controlled at 100~300mm, which is selected according to the depth of the wall. The groove is arranged along the longitudinal length of the wall.

[0037] The construction process for the reinforced structure provided in this application is as follows:

[0038] 1. Perform surface treatment on the target wall 4 to ensure that the reinforced side of the target wall 4 is relatively flat;

[0039] 2. Temporary anti-collapse supports are set up on both sides of the target wall 4 to provide temporary support for the target wall 4, while reserving construction space at the bottom of the target wall 4;

[0040] 3. The reinforced side of the target wall 4 is machined with wedge-shaped rib grooves 41 along the longitudinal length of the wall, and the arrangement is smaller on the outside and wider on the inside during the machining process;

[0041] 4. Perform rebar installation at the base of the target wall 4. Insert multiple sets of horizontal rebars 3 at the base of the target wall 4 with a horizontal and vertical spacing of 100mm. Ensure that both ends of each horizontal rebar 3 extend to the outside of the target wall 4. It is worth noting that the horizontal rebars 3 should be staggered with the wedge-shaped rib grooves 41 when they are arranged to avoid the horizontal rebars 3 being inserted into the wedge-shaped rib grooves 41.

[0042] 5. Arrange the pre-prepared side steel cage 1 on both sides of the root of the target wall 4, and weld and fix the side steel cage 1 to the end of the horizontal reinforcing bar 3 to form a complete wall root reinforcement grid structure.

[0043] 6. Multiple connecting vertical bars 5 are arranged along the length of the target wall 4 on the reinforced side. Each connecting vertical bar 5 is welded and fixed to the corresponding side steel cage 1. At the same time, the connecting vertical bar 5 extends upward 200~240mm above the top of the side steel cage 1.

[0044] 7. Construct a casting template outside the side steel cage 1, and use UHPC high-performance concrete to cast the reinforcement grid structure at the root of the wall. After the UHPC high-performance concrete solidifies, a root casting layer 2 is formed. The casting height of the root casting layer 2 should be 50-80mm higher than the bottom of the wedge-shaped rib groove 41. That is, after the UHPC high-performance concrete solidifies, a UHPC high-performance concrete layer with a thickness of 50-80mm will be formed at the bottom of the wedge-shaped rib groove 41, in preparation for the arrangement of the rib mesh 8.

[0045] 8. Remove the temporary support structure on the reinforced side of target wall 4;

[0046] 9. Construct the rib mesh 8. First, process two mounting holes on the UHPC high-performance concrete layer at the bottom of the wedge-shaped rib groove 41. Insert two vertical steel bars into the two mounting holes and use glue to firmly connect the vertical steel bars with the UHPC high-performance concrete layer. Arrange the horizontal steel bars in the rib mesh 8 according to the preset arrangement spacing, and weld the horizontal steel bars to the longitudinal steel bars for fixation.

[0047] 10. Construct the side steel reinforcement mesh 6. Weld the horizontal and vertical steel bars of the side steel reinforcement mesh 6 according to the above-mentioned spacing, ensuring that each vertical steel bar in the side steel reinforcement mesh 6 corresponds to a connecting vertical bar 5. Erect the constructed side steel reinforcement mesh 6 on the reinforced side of the target wall 4, and fix it by welding the side steel reinforcement mesh 6 to multiple connecting vertical bars 5 to form the installation of the side steel reinforcement mesh 6. (In actual work, a reasonable construction method and steel reinforcement structure can be selected according to the actual working conditions. The upper part of the connecting vertical bars 5 can be optimized, and the solid steel bars can be optimized into tubular steel bars. The side...) When the steel mesh 6 is reconstructed, the bottom length of each vertical steel bar can be extended. The extended vertical steel bars are inserted into the connecting vertical bars 5 as splice ends, ensuring accurate positioning of each vertical steel bar and the connecting vertical bars 5. After splicing, the vertical steel bars and the connecting vertical bars 5 are welded and fixed to ensure the stability of the connection. Alternatively, instead of using prefabricated side steel mesh 6, each individual vertical steel bar is first welded and fixed to the corresponding connecting vertical bar 5. On the basis of ensuring the stability of all vertical steel bars, horizontal steel bars are arranged according to the preset spacing to complete the layout of the side steel mesh 6.

[0048] 11. Connect the rib mesh 8 and the side steel mesh 6 by binding to form a wall reinforcement steel frame;

[0049] 12. After the reinforcement steel frame of the wall is arranged, the UHPC high-performance concrete plastering and pouring work is carried out. The wedge-shaped rib groove 41 is completely filled with UHPC material. After filling, it is necessary to ensure that the UHPC in the groove is densely poured before the plastering work of the reinforcement is carried out. The plastering thickness is selected according to the actual reinforcement requirements and controlled between 20 and 60 mm. Before plastering, the grouting work of the wall is carried out. When plastering, the grouting work of the wall is filled first, and then the outer plastering and finishing work is carried out. After the plastering is completed and the concrete has solidified, the wall pouring layer 7 is formed. At this time, the temporary support structure on the outside of the target wall 4 is removed, and the reinforcement work of the old building wall is completed.

Claims

1. A reinforcement structure for the walls of an old building, characterized in that: The reinforcement structure includes a bottom foundation reinforcement unit and a wall reinforcement unit. The bottom foundation reinforcement unit is wrapped around the root of the target wall (4) and fixedly connected to the target wall (4). The wall reinforcement unit is set on the reinforcement side of the target wall (4), and the bottom of the wall reinforcement unit is fixedly connected to the top of the bottom foundation reinforcement unit. The side of the wall reinforcement unit close to the target wall (4) is fixedly connected to the reinforcement side of the target wall (4). The bottom foundation reinforcement unit includes two side reinforcement components and multiple horizontal bar groups. The multiple horizontal bar groups are inserted at equal intervals from top to bottom at the root of the target wall (4). Each horizontal bar group includes multiple horizontal bars (3). The multiple horizontal bars (3) are arranged at equal intervals along the length extension direction of the target wall (4). Both ends of each horizontal bar (3) extend to the front and rear sides of the target wall (4). Each side reinforcement component is correspondingly set on one side of the root of the target wall (4). Each side reinforcement component is fixedly connected to the multiple horizontal bars (3) and the target wall (4). The wall reinforcement unit includes a side steel mesh (6) and a wall pouring layer (7). The side steel mesh (6) has two rib meshes (8) on the side close to the target wall (4). One end of each rib mesh (8) is fixedly connected to the side steel mesh (6), and the other end of each rib mesh (8) extends into a rib groove (41). The bottom of the side steel mesh (6) is fixedly connected to multiple connecting vertical bars (5). The bottom end of each rib mesh (8) is inserted into the root pouring layer (2) at the bottom of the corresponding rib groove (41). The wall pouring layer (7) is poured on the side steel mesh (6) and the two rib meshes (8), and the wall pouring layer (7) is fixedly connected to the target wall (4) and the corresponding root pouring layer (2).

2. The reinforcement structure for the wall of an old building according to claim 1, characterized in that: Two connecting ribs (9) are symmetrically provided on the side of the wall reinforcement unit facing the target wall (4) along the center line of the length direction of the target wall (4), and the length extension direction of the connecting ribs (9) is the same as the height extension direction of the target wall (4). Two rib grooves (41) are symmetrically processed on the reinforced side of the target wall (4) along the center line of the length direction of the target wall (4), and each rib groove (41) is correspondingly matched with a connecting rib (9).

3. The reinforcement structure for the wall of an old building according to claim 2, characterized in that: The rib groove (41) is a wedge-shaped groove, and the small opening side of the rib groove (41) is connected to the reinforcement side of the target wall (4). The connecting rib (9) is a wedge-shaped rib, and the small opening side of the connecting rib (9) is integrally formed with the wall reinforcement unit.

4. The reinforcement structure for the wall of an old building according to claim 3, characterized in that: The side reinforcement component includes a side steel cage (1) and a root pouring layer (2). The side steel cage (1) is set on one side of the root of the target wall (4), and the side steel cage (1) is fixedly connected to multiple horizontal reinforcing bars (3). The root pouring layer (2) is poured on the side steel cage (1), and the root pouring layer (2) is fixedly connected to the target wall (4).

5. The reinforcement structure for the wall of an old building according to claim 4, characterized in that: Multiple connecting vertical bars (5) are erected sequentially on the top of the side reinforcement component corresponding to the reinforcement side of the target wall (4) along the length extension direction of the target wall (4). The bottom end of each connecting vertical bar (5) passes through the root pouring layer (2) and is fixedly connected to the side steel cage (1). Each connecting vertical bar (5) is fixedly connected to the root pouring layer (2).

6. The reinforcement structure for the wall of an old building according to claim 4, characterized in that: The root pouring layer (2) in the corresponding side reinforcement component of the target wall (4) extends into the two rib grooves (41) of the target wall (4) reinforcement side.

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