Repairing and reinforcing structure and method for protecting building ganged brick outer wall

Abstract

The invention discloses a building ganged brick outer wall protection repairing and reinforcing structure and method.The building ganged brick outer wall protection repairing and reinforcing structure comprises a wall body, the front face and the back face of the wall body are each provided with an opposite supporting pile, the supporting piles are tightly attached to the wall body, and the opposite side faces of the two supporting piles are provided with a plurality of transverse plate clamping grooves with the side faces open at equal intervals from top to bottom; a transverse plate is installed on the transverse plate clamping grooves, the transverse plate and the supporting piles are arranged in a cross shape, the transverse plate is tightly attached to the wall body, a connecting plate stretching across the wall body is arranged between the tops of the two supporting piles, and the connecting plate is fixedly connected with the supporting piles; the wall body is reinforced and supported through the two opposite supporting piles arranged on the front face and the back face of the wall body, the supporting piles are driven into soil manually or through a machine to be fixed, and in order to enlarge the action range of the supporting piles, the multiple transverse plates staggered with the supporting piles in a cross shape are arranged on the supporting piles; and the connecting plate is used for connecting the two supporting piles into a whole, so that the reinforcing and supporting effects of the supporting piles are enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wall reinforcement structure, and particularly relates to a protection building fair-faced brick outer wall repair and reinforcement structure and method. BACKGROUND

[0002] With the development of city planning, due to the long time, combined with the long-term exposure of the outer wall brick, the weathering of the outer wall of some old buildings is more serious, the clay masonry material used in the original building has no strength, the fair-faced brick outer wall of the old residential building needs to be protected and repaired, and some old residential buildings will be updated to modern e-commerce settlement commercial buildings. In order to retain the characteristics and architectural style of the outer wall of the regional residential building, continue the city characteristic wind cap, inherit the city historical context, and promote the green development concept, the updated commercial building needs to retain the complete outer wall of the old residential building, and the roof and indoor structure are rebuilt.

[0003] The existing announcement No. CN115030556B discloses a fair-faced brick outer wall old building repair and reinforcement method, including the following steps: S1, repairing the fair-faced brick outer wall of the old building; S2, removing the partition wall of the roof of the old building; S3, building a supporting wall structure system to support the outer wall in step S1; S4, removing the connecting component and using fair-faced brick to seal the hollow part; S5, protecting and reinforcing the rubble foundation of the old building; S6, rebuilding the roof and indoor structure, the reconstruction foundation adopts a raft foundation connected with the rubble foundation, and the reconstruction frame structure is connected with the outer wall; S7, removing the supporting wall structure system. The fair-faced brick outer wall is retained as the outer skin, the supporting wall structure system is used to support the outer wall during reconstruction, the raft foundation with high integrity is connected with the original rubble foundation to form a whole, and the reconstruction frame is connected with the outer wall to form a whole during the reconstruction in the raft foundation, so that the structural strength of the building after reconstruction is increased, and the commercial demand is met.

[0004] The existing repair of the fair-faced brick wall of the ancient building usually removes the original wall in whole and then rebuilds it. This method seriously destroys the historical information of the original building wall and cannot well reflect the historical value of the building, so it is necessary to support and reinforce the building wall without changing the original building wall. SUMMARY

[0005] The present application relates to the technical field of wall reinforcement structure, and particularly relates to a protection building fair-faced brick outer wall repair and reinforcement structure and method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a structure and method for repairing and reinforcing exposed brick exterior walls of buildings, comprising a wall body, wherein a supporting pile is provided on each of the front and back sides of the wall body, and the supporting pile is in close contact with the wall body; multiple horizontal plate slots with open sides are provided at equal intervals from top to bottom on the opposite sides of the two supporting piles; a horizontal plate is installed on the horizontal plate slots; the horizontal plate and the supporting pile are arranged in a cross shape, and the horizontal plate is in close contact with the wall body; a connecting plate spanning the wall body is provided between the tops of the two supporting piles, and the connecting plate is fixedly connected to the supporting piles; and a cone-shaped breaking end is provided at the bottom of the supporting pile.

[0007] Preferably, multiple support foot slots are provided at equal intervals from top to bottom on the lower part of the opposite sides of the two support piles, and support feet at acute angles to the support piles are engaged in the support foot slots.

[0008] Preferably, the top of the support foot is provided with a support foot locking block that mates with the support foot locking groove, and the bottom of the support foot is provided with a support foot base plate.

[0009] Preferably, the top of the support pile is provided with a connecting plate slot, and each side of the bottom of the connecting plate is provided with a connecting plate block.

[0010] Preferably, a limiting baffle is provided in the middle of the side of the horizontal plate, and the limiting baffle and the horizontal plate are an integral structure.

[0011] Preferably, the cross-section of the support pile is square.

[0012] A method for repairing and reinforcing exposed brick exterior walls of buildings, utilizing the aforementioned structure for repairing and reinforcing exposed brick exterior walls of buildings, includes the following steps: S1. Clear water brick inspection: Inspecting clear water bricks for weathering, mortar hollowing, brick joint cracking, and brick damage; S2. Overall inspection of exterior walls: Detecting the tilt of the walls and identifying internal voids; S3. Weathering Repair of Clear Water Bricks: Apply a special repair agent for clear water bricks to the weathered surface of the clear water bricks. S4. Mortar hollowing repair: Use low-pressure grouting special repair mortar; S5. Repair of cracked brick joints: Use epoxy resin crack injection. S6. Repair of missing bricks: Use exposed bricks of the same size and color to fill in the gaps; S7. Repair of exterior wall corners: Use an externally wrapped concealed column, with the outer side dry-hung with the same specification fair-faced bricks; S8. Repair of loose wall: Use stainless steel anchor rods, drill holes from the outside of the wall to the inside of the wall, and seal both ends of the anchor rods with putty of the same color as the fair-faced bricks; S9. Overall reinforcement of the exterior wall: The exterior wall is reinforced using a reinforcement structure. The wall is reinforced and supported by two support piles installed on the front and back of the wall and facing each other. The support piles are driven into the soil manually or by machine for fixation. To increase the effective range of the support piles, multiple horizontal plates are installed on the support piles and are arranged in a cross shape. Connecting plates are used to connect two support piles into one unit and the connecting plates penetrate the wall. After reinforcement, the surface of the reinforcement structure is painted with environmentally friendly paint that matches the color of the exposed brick. S10. When reinforcing multiple floors, add support piles to allow the supports to penetrate the floor slab, and fix the connection between adjacent support piles with locking plates.

[0013] The S4 uses grouting holes, and the grouting is carried out in layers from bottom to top to avoid the generation of air bubbles. After reinforcement, only the small holes need to be sealed.

[0014] The injection pressure in S5 is 0.1-0.2 MPa, and the color of the adhesive is consistent with the color of the brick joints to ensure that the adhesive does not protrude from the brick surface after curing.

[0015] This also includes the application of waterproofing agents: after repair and reinforcement, apply a transparent silane waterproofing agent to the wall surface, at least twice.

[0016] For multi-story building structures: Install a ring-shaped steel sleeve (50mm larger in diameter than the support pile) at the corresponding position on the floor slab, and weld the sleeve to the floor slab reinforcement. After the support pile passes through the sleeve, ensure that each support pile 1 on each floor is equipped with a horizontal plate 2, and then fill the gap between the pile body and the sleeve with expanding fireproof sealant to complete the foundation sealing treatment.

[0017] Sealing holes in floor slabs: Preprocessing Clean the surface of the floor slab around the hole, remove loose dust and mortar, grind the edges of the hole with a wire brush (exposing the solid base layer), and then apply a cement-based penetrating crystalline waterproof coating.

[0018] Layered sealing Layer 1: Install a ring-shaped formwork (100mm high) at the bottom of the opening (top surface of the lower floor slab), pour micro-expansion fine stone concrete (strength grade C30, mixed with crack-resistant fibers) into the formwork, vibrate to compact, and cure for 7 days.

[0019] Second layer: After the concrete has cured, remove the formwork, fill the top of the opening (bottom of the upper floor slab) with polyurethane foam sealant (50mm deep), cover the surface of the sealant with fiberglass cloth (100mm wider than the opening), and then apply a layer of polymer cement-based waterproof coating to form a base waterproof protection.

[0020] Final stage Apply a cement-based penetrating crystalline waterproofing agent within a 200mm radius around the opening (apply twice, with a 4-hour interval between coats), and finally level it with putty of the same color as the floor slab to ensure a uniform appearance.

[0021] Sealing holes in walls: Preprocessing Clean the gap between the anchor rod and the hole in the wall, remove dust and debris, and blow the hole clean with compressed air; wrap a water-swellable sealing strip (the width of which is compatible with the diameter of the hole) around the surface of the anchor rod, with an overlap length of not less than 50mm, to lay the foundation for waterproof sealing.

[0022] Layered sealing Layer 1: Inject epoxy resin grout into the duct from the outside of the wall (pressure 0.1MPa, inject slowly to avoid air bubbles). The grout should fill 2 / 3 of the duct volume and be left to stand for 24 hours to cure, thus sealing the main body of the duct.

[0023] Second layer: After curing, apply anti-rust paint to the ends of the anchor rods on both sides of the wall (the exposed length should not exceed 10mm), and then seal the holes with flexible putty of the same color as the fair-faced bricks. Smooth the putty surface according to the brick joint texture to ensure that it is flat and consistent with the surrounding brick surface.

[0024] acceptance After the sealing is completed, a water spray test is conducted on the perforated area (continuous water spray for 30 minutes, observe whether there is water seepage inside). If water seepage occurs, the hole needs to be cleaned again and the sealing material needs to be added to ensure that the sealing and waterproofing effect meets the standards.

[0025] Waterproofing the perforation: Waterproofing at penetrations follows a unified standard for both floor and wall penetrations and must be implemented concurrently with the sealing work. Specific requirements are as follows: Basic sealing and rubber gasket setup: Floor slab penetration: Install metal cover plates with rubber gaskets at both ends of the annular steel sleeve, press the rubber gaskets to ensure tight fit with the surface of the sleeve and support pile, and work with the previously filled expanding fireproof sealant to form a double seal, blocking the water seepage channel and the space for structural displacement.

[0026] Wall penetration: Rubber gaskets are attached to the inside of the putty sealing layer on both sides of the wall to form a double seal with the water-swellable water-stop strip on the surface of the anchor rod, preventing water from seeping through the gap between the anchor rod and the sealing layer.

[0027] Rigid waterproofing: Apply cement-based penetrating crystalline waterproofing agent around the hole (within 200mm of the hole opening), with a penetration depth of not less than 50mm, to form a waterproof crystalline layer and block the capillary penetration path of water.

[0028] Flexible waterproofing: A self-adhesive polymer-modified bitumen waterproof membrane (thickness not less than 3mm) is pasted on the outside of the rigid waterproof layer. The membrane is cut into a trumpet shape at the opening and extends 50mm into the opening. The overlap length of the membrane is not less than 100mm. The overlap is sealed with a blowtorch to create a comprehensive waterproof protection system.

[0029] Compared with the prior art, the beneficial effects of the present invention are: the present invention reinforces and supports the wall by setting two support piles on the front and back of the wall and facing each other. The support piles are driven into the soil manually or by machine for fixing. In order to increase the effective range of the support piles, multiple horizontal plates are provided on the support piles and intersect the support piles in a cross shape. The connecting plate is used to connect the two support piles into one, thereby enhancing the reinforcement and support effect of the support piles. Support feet at acute angles to the support pile are used to support the support pile, and multiple support foot slots at equal intervals on the support pile are used to adjust the position of the support feet according to the usage. The limiting baffle on the horizontal plate is used to withstand impact force and assist the horizontal plate in being installed into the horizontal plate slot. At the same time, the limiting baffle also plays a positioning role. When the limiting baffle contacts the support pile, the extension length of the horizontal plate on both sides of the support pile is equal. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the invention combined with the wall; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the supporting pile of the present invention; Figure 4 This is a schematic diagram of the structure of the horizontal plate of the present invention; Figure 5 This is a schematic diagram of the connecting plate of the present invention; Figure 6 This is a schematic diagram of the support foot of the present invention; Figure 7 This is a schematic diagram of the structure of the multi-layer reinforcement of the present invention.

[0031] In the diagram: 1. Support pile; 2. Horizontal plate; 3. Connecting plate; 4. Support foot slot; 5. Support foot; 6. Breaking end; 7. Limiting baffle; 8. Connecting plate block; 9. Horizontal plate slot; 10. Connecting plate slot; 11. Support foot block; 12. Support foot base plate; 13. Wall. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-6 In this embodiment of the invention, a structure and method for repairing and reinforcing a building's exposed brick exterior wall includes a wall 13. Each of the front and back sides of the wall 13 has a corresponding support pile 1, with the support pile 1 tightly abutting the wall 13. On the opposite sides of the two support piles 1, multiple horizontal plate slots 9 with open sides are equally spaced from top to bottom. A horizontal plate 2 is installed on the horizontal plate slots 9, and the horizontal plate 2 is arranged in a cross shape with the support pile 1, with the horizontal plate 2 tightly abutting the wall 13. A connecting plate 3 spanning the wall 13 is provided between the tops of the two support piles 1, and the connecting plate 3 is fixedly connected to the support pile 1. The bottom of the support pile 1 is provided with a cone-shaped breaking end 6, and the top of the support pile 1 is provided with a connecting plate slot 10. There is a connecting plate block 8 on each side of the bottom of the connecting plate 3. The wall 13 is reinforced and supported by two support piles 1 set on the front and back of the wall 13 and facing each other. The support piles 1 are driven into the soil manually or by machine for fixing. In order to increase the effective range of the support piles 1, multiple horizontal plates 2 are provided on the support piles 1 and intersect the support piles 1 in a cross shape. The connecting plate 3 is used to connect the two support piles 1 into one, thereby enhancing the reinforcement and support effect of the support piles 1.

[0034] On the lower part of the opposite sides of the two support piles 1, multiple support foot slots 4 are equally spaced from top to bottom. Support feet 5 at acute angles to the support piles 1 are engaged in the support foot slots 4. The top of the support foot 5 is provided with a support foot locking block 11 that cooperates with the support foot slot 4, and the bottom of the support foot 5 is provided with a support foot base plate 12. The support feet 5 at acute angles to the support piles 1 are used to support the support piles 1. The multiple support foot slots 4 equally spaced on the support piles 1 are used to adjust the position of the support feet 5 according to the usage.

[0035] A limiting baffle 7 is provided in the middle of the side of the horizontal plate 2. The limiting baffle 7 and the horizontal plate 2 are an integral structure. The limiting baffle 7 on the horizontal plate 2 is used to withstand the impact force and assist the horizontal plate 2 in being installed on the horizontal plate slot 9. At the same time, the limiting baffle 7 also plays a positioning role. When the limiting baffle 7 contacts the support pile 1, the extension length of the horizontal plate 2 on both sides of the support pile 1 is equal.

[0036] The cross-section of the support pile 1 is square, which can increase the contact area between the support pile 1 and the wall.

[0037] A method for repairing and reinforcing exposed brick exterior walls of buildings, utilizing the aforementioned structure for repairing and reinforcing exposed brick exterior walls of buildings, includes the following steps: S1. Clear water brick inspection: Inspecting clear water bricks for weathering, mortar hollowing, brick joint cracking, and brick damage; S2. Overall inspection of exterior walls: Detecting the tilt of the walls and identifying internal voids; S3. Weathering Repair of Clear Water Bricks: Apply a special repair agent for clear water bricks to the weathered surface of the clear water bricks. S4. Mortar hollowing repair: Use low-pressure grouting special repair mortar; S5. Repair of cracked brick joints: Use epoxy resin crack injection. S6. Repair of missing bricks: Use exposed bricks of the same size and color to fill in the gaps; S7. Repair of exterior wall corners: Use an externally wrapped concealed column, with the outer side dry-hung with the same specification fair-faced bricks; S8. Repair of loose wall: Use stainless steel anchor rods, drill holes from the outside of the wall to the inside of the wall, and seal both ends of the anchor rods with putty of the same color as the fair-faced bricks; S9. Overall reinforcement of the exterior wall: The exterior wall is reinforced by a reinforcement structure. The wall 13 is reinforced and supported by two support piles 1 set on the front and back of the wall 13 and facing each other. The support piles 1 are fixed in the soil by manual or machine driving. In order to increase the effective range of the support piles 1, multiple horizontal plates 2 are provided on the support piles 1 and intersect the support piles 1 in a cross shape. The connecting plate 3 is used to connect two support piles 1 into one. After reinforcement, the connecting plate 3 penetrates the wall. The surface of the reinforcement structure is coated with environmentally friendly paint that matches the color of the fair-faced brick. S10. When reinforcing multiple floors, add support pile 1 to penetrate the floor slab, and fix the connection between adjacent support piles 1 with locking plates.

[0038] The S4 uses grouting holes, and the grouting is carried out in layers from bottom to top to avoid the generation of air bubbles. After reinforcement, only the small holes need to be sealed.

[0039] The injection pressure in S5 is 0.1-0.2 MPa, and the color of the adhesive is consistent with the color of the brick joints to ensure that the adhesive does not protrude from the brick surface after curing.

[0040] This also includes the application of waterproofing agents: after repair and reinforcement, apply a transparent silane waterproofing agent to the wall surface, at least twice.

[0041] For multi-story building structures: Install a ring-shaped steel sleeve (50mm larger in diameter than the support pile) at the corresponding position on the floor slab, and weld the sleeve to the floor slab reinforcement. After the support pile passes through the sleeve, ensure that each support pile 1 on each floor is equipped with a horizontal plate 2, and then fill the gap between the pile body and the sleeve with expanding fireproof sealant to complete the foundation sealing treatment.

[0042] Sealing holes in floor slabs: Preprocessing Clean the surface of the floor slab around the hole, remove loose dust and mortar, grind the edges of the hole with a wire brush (exposing the solid base layer), and then apply a cement-based penetrating crystalline waterproof coating to enhance waterproofing.

[0043] Layered sealing Layer 1: Install a ring-shaped formwork (100mm high) at the bottom of the opening (top surface of the lower floor slab), pour micro-expansion fine stone concrete (strength grade C30, mixed with crack-resistant fibers) into the formwork, vibrate to compact, and cure for 7 days.

[0044] Second layer: After the concrete has cured, remove the formwork, fill the top of the opening (bottom of the upper floor slab) with polyurethane foam sealant (50mm deep), cover the surface of the sealant with fiberglass cloth (100mm wider than the opening), and then apply a layer of polymer cement-based waterproof coating to form a base waterproof protection.

[0045] Final stage Apply a cement-based penetrating crystalline waterproofing agent within a 200mm radius around the opening (apply twice, with a 4-hour interval between coats), and finally level it with putty of the same color as the floor slab to ensure a uniform appearance.

[0046] Sealing holes in walls: Preprocessing Clean the gap between the anchor rod and the hole in the wall, remove dust and debris, and blow the hole clean with compressed air; wrap a water-swellable sealing strip (the width of which is compatible with the diameter of the hole) around the surface of the anchor rod, with an overlap length of not less than 50mm, to lay the foundation for waterproof sealing.

[0047] Layered sealing Layer 1: Inject epoxy resin grout into the duct from the outside of the wall (pressure 0.1MPa, inject slowly to avoid air bubbles). The grout should fill 2 / 3 of the duct volume and be left to stand for 24 hours to cure, thus sealing the main body of the duct.

[0048] Second layer: After curing, apply anti-rust paint to the ends of the anchor rods on both sides of the wall (the exposed length should not exceed 10mm), and then seal the holes with flexible putty of the same color as the fair-faced bricks. Smooth the putty surface according to the brick joint texture to ensure that it is flat and consistent with the surrounding brick surface.

[0049] acceptance After the sealing is completed, a water spray test is conducted on the perforated area (continuous water spray for 30 minutes, observe whether there is water seepage inside). If water seepage occurs, the hole needs to be cleaned again and the sealing material needs to be added to ensure that the sealing and waterproofing effect meets the standards.

[0050] Waterproofing the perforation: Waterproofing at penetrations follows a unified standard for both floor and wall penetrations and must be implemented concurrently with the sealing work. Specific requirements are as follows: Basic sealing and rubber gasket setup: Floor slab penetration: Install metal cover plates with rubber gaskets at both ends of the annular steel sleeve, press the rubber gaskets to ensure tight fit with the surface of the sleeve and support pile, and work with the previously filled expanding fireproof sealant to form a double seal, blocking the water seepage channel and the space for structural displacement.

[0051] Wall penetration: Rubber gaskets are attached to the inside of the putty sealing layer on both sides of the wall to form a double seal with the water-swellable water-stop strip on the surface of the anchor rod, preventing water from seeping through the gap between the anchor rod and the sealing layer.

[0052] Rigid waterproofing: Apply cement-based penetrating crystalline waterproofing agent around the hole (within 200mm of the hole opening), with a penetration depth of not less than 50mm, to form a waterproof crystalline layer and block the capillary penetration path of water.

[0053] Flexible waterproofing: A self-adhesive polymer-modified bitumen waterproof membrane (thickness not less than 3mm) is pasted on the outside of the rigid waterproof layer. The membrane is cut into a trumpet shape at the opening and extends 50mm into the opening. The overlap length of the membrane is not less than 100mm. The overlap is sealed with a blowtorch to create a comprehensive waterproof protection system.

[0054] The working principle of this invention is as follows: This invention reinforces and supports the wall 13 by setting two support piles 1 on the front and back sides of the wall 13 and facing each other. The support piles 1 are driven into the soil manually or by machine for fixation. In order to increase the effective range of the support piles 1, multiple horizontal plates 2 are provided on the support piles 1 and intersect the support piles 1 in a cross shape. The connecting plate 3 is used to connect the two support piles 1 into one, thereby enhancing the reinforcement and support effect of the support piles 1. The support feet 5, which are at an acute angle to the support pile 1, are used to support the support pile 1. Multiple support foot slots 4, which are equally spaced on the support pile 1, are used to adjust the position of the support feet 5 according to the usage. The limiting baffle 7 on the horizontal plate 2 is used to withstand the impact force and assist the horizontal plate 2 in being installed on the horizontal plate slot 9. At the same time, the limiting baffle 7 also plays a positioning role. When the limiting baffle 7 contacts the support pile 1, the extension length of the horizontal plate 2 on both sides of the support pile 1 is equal.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A structure for repairing and reinforcing exposed brick exterior walls of buildings, comprising a wall (13), characterized in that, The wall (13) has a supporting pile (1) on its front and back sides, and the supporting pile (1) is close to the wall (13). On the opposite sides of the two supporting piles (1), there are multiple horizontal plate slots (9) with open sides at equal intervals from top to bottom. A horizontal plate (2) is installed on the horizontal plate slot (9). The horizontal plate (2) and the supporting pile (1) are arranged in a cross shape, and the horizontal plate (2) is close to the wall (13). A connecting plate (3) spanning the wall (13) is provided between the tops of the two supporting piles (1), and the connecting plate (3) is fixedly connected to the supporting pile (1). The bottom of the supporting pile (1) is provided with a cone-shaped breaking end (6).

2. The structure for repairing and reinforcing exposed brick exterior walls of a building according to claim 1, characterized in that, Multiple support foot slots (4) are provided at equal intervals from top to bottom on the lower part of the opposite sides of the two support piles (1), and support feet (5) at acute angles to the support piles (1) are engaged in the support foot slots (4).

3. The structure for repairing and reinforcing exposed brick exterior walls of a building according to claim 2, characterized in that, The top of the support foot (5) is provided with a support foot locking block (11) that cooperates with the support foot locking groove (4), and the bottom of the support foot (5) is provided with a support foot base plate (12).

4. The structure for repairing and reinforcing exposed brick exterior walls of a building according to claim 1, characterized in that, The top of the support pile (1) is provided with a connecting plate slot (10), and each side of the bottom of the connecting plate (3) is provided with a connecting plate block (8).

5. The structure for repairing and reinforcing exposed brick exterior walls of a building according to claim 1, characterized in that, A limiting baffle (7) is provided in the middle of the side of the horizontal plate (2), and the limiting baffle (7) and the horizontal plate (2) are an integral structure.

6. The structure for repairing and reinforcing exposed brick exterior walls of a building according to claim 1, characterized in that, The cross-section of the support pile (1) is square.

7. A method for repairing and reinforcing exposed brick exterior walls of buildings, characterized in that, The repair and reinforcement structure for exposed brick exterior walls of protected buildings, as described in any one of claims 1-6, includes the following steps: S1. Clear water brick inspection: Inspecting clear water bricks for weathering, mortar hollowing, brick joint cracking, and brick damage; S2. Overall inspection of exterior walls: Detecting the tilt of the walls and identifying internal voids; S3. Weathering Repair of Clear Water Bricks: Apply a special repair agent for clear water bricks to the weathered surface of the clear water bricks. S4. Mortar hollowing repair: Use low-pressure grouting special repair mortar; S5. Repair of cracked brick joints: Use epoxy resin crack injection. S6. Repair of missing bricks: Use exposed bricks of the same size and color to fill in the gaps; S7. Repair of exterior wall corners: Use an externally wrapped concealed column, with the outer side dry-hung with the same specification fair-faced bricks; S8. Repair of loose wall: Use stainless steel anchor rods, drill holes from the outside of the wall to the inside of the wall, and seal both ends of the anchor rods with putty of the same color as the fair-faced bricks; S9. Overall reinforcement of the exterior wall: The exterior wall is reinforced by a reinforcement structure. The wall (13) is reinforced and supported by two support piles (1) set on the front and back of the wall (13) and opposite to each other. The support piles (1) are driven into the soil manually or by machine for fixation. In order to increase the range of action of the support piles (1), multiple horizontal plates (2) are provided on the support piles (1) and are intersected in a cross shape with the support piles (1). The connecting plate (3) is used to connect the two support piles (1) into one unit. The connecting plate (3) penetrates the wall. After reinforcement, the surface of the reinforcement structure is coated with environmentally friendly paint that matches the color of the fair water bricks. S10. When reinforcing multiple floors, add support piles (1) so that the support piles (1) penetrate the floor slab and fix the connection between adjacent support piles (1) with locking plates.

8. The method for repairing and reinforcing exposed brick exterior walls of a building according to claim 7, characterized in that, The S4 uses grouting holes, and the grouting is carried out in layers from bottom to top to avoid the generation of air bubbles. After reinforcement, only the small holes need to be sealed.

9. A method for repairing and reinforcing exposed brick exterior walls of a building according to claim 7, characterized in that, The injection pressure in S5 is 0.1-0.2 MPa, and the color of the adhesive is consistent with the color of the brick joints to ensure that the adhesive does not protrude from the brick surface after curing.

10. A method for repairing and reinforcing exposed brick exterior walls of a building according to claim 7, characterized in that, This also includes the application of waterproofing agents: after repair and reinforcement, apply a transparent silane waterproofing agent to the wall surface, at least twice.

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