Archaistic bare brick wall reinforcing structure

Abstract

The utility model discloses an antique plain brick wall reinforcing structure which comprises an existing wall body and further comprises filler filled in a to-be-reinforced area on the existing wall body, tie bars are fixedly installed in the filler, a reinforcing mesh covering the to-be-reinforced area is arranged on the surface of the existing wall body, the first end of each tie bar is anchored into the existing wall body, and the second end of each tie bar is anchored into the existing wall body. The second end extends out of the surface of the filler and is connected to the reinforcing mesh, a reinforcing layer covering the reinforcing mesh is arranged on the surface of the existing wall, a keel assembly for installing a decoration panel is arranged on the side, back to the existing wall, of the reinforcing layer, and the keel assembly is connected with the reinforcing mesh. The high-ductility concrete with high ductility, high strength and good crack control capability is combined with the reinforcing mesh embedded into the wall body to reinforce the wall body from the interior of the bare brick wall, so that the external facade decoration effect of the bare brick wall can be reserved, and the integrity and the anti-seismic property of the brick masonry wall can be improved; and the bearing capacity of the wall body can be effectively improved to adapt to the improvement of building functions, and certain popularization value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an antique plain brick wall reinforcement structure. Background Art

[0002] Brick masonry structures have a long history of application in my country, and exposed brick walls have natural decorative aesthetic elements. As time goes by, under the influence of natural and human factors, exposed brick walls as the facades of buildings are also aging, which continuously weakens the bearing capacity of the walls themselves, so exposed brick walls need to be repaired.

[0003] The traditional method of strengthening by expanding the masonry cross-section will affect the decorative aesthetic effect of the wall facade, and the headroom of the building will be reduced after reinforcement. It is also not suitable when the original brick wall has cracked. Since the new and old masonry are not built in one go with staggered joints, no bite effect can be produced, and they cannot work together as a whole. The brick wall is prone to cracks, and the reinforcement effect is not ideal. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide an antique plain brick wall reinforcement structure, which can not only retain the facade decorative effect of the plain brick wall, improve the integrity and seismic resistance of the brick masonry wall, but also effectively increase the wall bearing capacity to adapt to the improvement of building functions.

[0005] In order to achieve the above technical effects, the utility model provides an antique plain brick wall reinforcement structure, including an existing wall body, and also includes:

[0006] A filler is filled in the area to be reinforced on the existing wall, a tie bar is fixedly installed in the filler, a steel mesh covering the area to be reinforced is provided on the surface of the existing wall, a first end of the tie bar is anchored in the existing wall, and a second end extends out of the surface of the filler and is connected to the steel mesh, a reinforcement layer covering the steel mesh is provided on the surface of the existing wall, a keel assembly for installing a decorative panel is provided on the side of the reinforcement layer facing away from the existing wall, and the keel assembly is connected to the steel mesh.

[0007] Preferably, the steel mesh is formed by overlapping transverse reinforcements and vertical reinforcements, and the connection nodes on the steel mesh include a first node corresponding to the area to be reinforced and a second node corresponding to other areas. A connecting piece is provided at a position corresponding to the first node on the keel assembly, and the tie bars are provided at positions corresponding to the first nodes in the filler, and a fracture is formed between the transverse reinforcement and the vertical reinforcement at the first node, and the tie bars, the keel assembly, the transverse reinforcement and the vertical reinforcement are connected and fixed together through a six-way adjustable connector.

[0008] Preferably, the six-way adjustable connector includes a plurality of steel bar sleeves arranged horizontally for connecting the transverse bars or vertically for connecting the vertical bars, as well as tie bar sleeves arranged perpendicular to the surface of the existing wall and used to connect the tie bars and connecting piece sleeves used to connect the connecting pieces. The plurality of steel bar sleeves are fixedly connected by fixing rings, and fixing brackets are fixedly connected between the tie bar sleeves and the fixing rings, as well as between the connecting piece sleeves and the fixing rings.

[0009] Preferably, the keel assembly includes a plurality of main keels and a plurality of secondary keels cross-connected in a grid structure, the connecting piece is connected to the intersection node between each main keel and the corresponding secondary keel, and the connecting piece sleeve passes through the reinforcement layer and is connected to the connecting piece sleeve.

[0010] Preferably, a through hole is provided on the main keel for the connecting member to pass through, the connecting member is passed through the through hole, and is used to cooperate with at least two fixing nuts to fix the main keel and the connecting member.

[0011] Preferably, the filler and the reinforcement layer are both made of high-ductility concrete.

[0012] Preferably, a rock wool layer is provided between the keel assembly and the reinforcement layer, and an organic electrical conduit and an electromechanical bottom box connected to the electromechanical conduit are pre-embedded in the rock wool layer, and the electromechanical conduit and the electromechanical bottom box are both connected to the keel assembly.

[0013] Preferably, an installation opening is reserved on the decorative panel at a position corresponding to the electromechanical base box, an electromechanical panel is arranged in the installation opening, and the electromechanical panel covers and is connected to the surface of the electromechanical base box.

[0014] A method for reinforcing an antique plain brick wall, wherein the antique plain brick wall is reinforced by the antique plain brick wall reinforcement structure, and the reinforcement method comprises the following steps:

[0015] Position and lay out the area to be reinforced on the existing wall, and select and mark the installation position of the tie bars;

[0016] Take out the bricks at the installation position marked by the selected mark, fill the position where the bricks were taken out with fillers, insert the tie bar at the same time, and anchor the first end of the tie bar into the existing wall;

[0017] Extending the second end of the tie bar out of the surface of the filler and installing a steel mesh at the second end;

[0018] Spray the reinforcement layer on the surface of the existing wall to cover the steel mesh;

[0019] A keel assembly for mounting a decorative panel is installed on the side of the reinforcement layer facing away from the existing wall.

[0020] Preferably, before extending the second end of the tie bar out of the surface of the filler and installing the steel mesh at the second end, the base wall surface is cleaned, and the interface agent is sprayed after the base is cleaned.

[0021] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are:

[0022] The connection of tie bars, steel mesh and connectors is carried out through customized six-way adjustable connectors to avoid the damage of high-ductility concrete base by welding operations, and the integrated construction of exposed brick wall reinforcement, electromechanical pipeline installation and interior wall decoration is carried out. It can not only improve the bearing capacity of the wall without affecting the exterior wall repair, but also protect the reinforced wall to provide conditions for the internal construction of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a diagram for positioning and installing tie bars in the utility model.

[0025] Figure 2 This is the installation diagram of the steel mesh in the utility model.

[0026] Figure 3 It is a structural schematic diagram of a six-way adjustable connector in the utility model.

[0027] Figure 4 It is a construction schematic diagram of the reinforcement layer in the utility model.

[0028] Figure 5 It is a schematic diagram of the installation of the keel assembly and the electromechanical pipelines in the utility model.

[0029] Figure 6 It is a schematic diagram of the installation structure of the main keel in the utility model.

[0030] Figure 7 It is a schematic diagram of the installation structure of the rock wool layer of the utility model.

[0031] Figure 8 It is a schematic diagram of the installation structure of the decorative panel in the utility model.

[0032] The corresponding relationship of the numbers in the accompanying drawings is as follows:

[0033] 1-existing wall; 2-tie reinforcement positioning mark; 3-filler; 4-six-way adjustable connector; 41-tie reinforcement sleeve; 42-fixing ring; 43-rebar sleeve; 44-connector sleeve; 45-fixing bracket; 5-vertical reinforcement; 6-transverse reinforcement; 7-reinforcement layer; 8-secondary keel; 9-main keel; 10-edge keel; 11-additional keel; 12-electromechanical and electrical conduits; 13-electromechanical bottom box; 14-fixing nut; 15-rock wool layer; 16-electromechanical panel; 17-decorative panel; 18-connector. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figures 1 to 8 As shown, the utility model provides an antique plain brick wall reinforcement structure, including an existing wall 1, and also includes a region to be reinforced ( Figure 1 The filler 3 has a tie bar positioning mark 2 in the middle, and a tie bar is fixedly installed in the filler 3. The surface of the existing wall 1 is provided with a steel mesh covering the area to be reinforced. The first end of the tie bar is anchored into the existing wall 1, and the second end extends out of the surface of the filler 3 and is connected to the steel mesh. The surface of the existing wall 1 is provided with a reinforcement layer 7 covering the steel mesh. The side of the reinforcement layer 7 facing away from the existing wall 1 is provided with a keel assembly for installing a decorative panel 17, and the keel assembly is connected to the steel mesh. Preferably, in this embodiment, the filler 3 and the reinforcement layer 7 are both made of high-ductility concrete, which has high ductility, high strength and good crack control ability.

[0036] Furthermore, the steel mesh is formed by overlapping transverse reinforcement 6 and vertical reinforcement 5, and the connection nodes on the steel mesh include a first node corresponding to the area to be reinforced and a second node corresponding to other areas. A connecting piece 18 is provided at the position corresponding to the first node on the keel assembly, and a tie bar is provided at the position corresponding to the first node in the filler 3, and a fracture is formed between the transverse reinforcement 6 and the vertical reinforcement 5 at the first node, and the tie bar, the keel assembly, the transverse reinforcement 6, and the vertical reinforcement 5 are connected and fixed together through a six-way adjustable connector 4.

[0037] Furthermore, the six-way adjustable connector 4 includes a plurality of steel bar sleeves 43 arranged horizontally for connecting the transverse reinforcement 6 or vertically for connecting the vertical reinforcement 5, and a tie bar sleeve 41 arranged perpendicular to the surface of the existing wall 1 and used to connect the tie bars and a connecting piece sleeve 44 for connecting the connecting piece 18. The plurality of steel bar sleeves 43 are fixedly connected by a fixing ring 42, and a fixing bracket 45 is fixedly connected between the tie bar sleeve 41 and the fixing ring 42, and between the connecting piece sleeve 44 and the fixing ring 42.

[0038] See also Figure 3 , Figure 5 and Figure 6 As shown, the keel assembly includes a plurality of main keels 9 and a plurality of secondary keels 8 cross-connected in a grid-like structure, a connector 18 is connected to the intersection node of each main keel 9 and the corresponding secondary keel 8, and the connector sleeve 44 passes through the reinforcement layer 7 and is sleeved and connected with the connector 18. Preferably, a through hole is provided on the main keel 9 for the connector 18 to pass through, and the connector 18 is passed through the through hole and is used to cooperate with at least two fixing nuts 14 to fix the main keel 9 with the connector 18. It should be noted that in this embodiment, the secondary keel 8 is also provided with an edge keel 10 and an additional keel 11.

[0039] See also Figure 5 , Figure 7 and Figure 8 As shown, a rock wool layer 15 is provided between the keel assembly and the reinforcement layer 7, and an organic wire tube 12 and an electromechanical bottom box 13 are pre-embedded in the rock wool layer 15, and both the electromechanical wire tube 12 and the electromechanical bottom box 13 are connected to the keel assembly. Preferably, an installation opening is reserved on the decorative panel 17 at a position corresponding to the electromechanical bottom box 13, and an electromechanical panel 16 is provided in the installation opening, and the electromechanical panel 16 covers the surface connected to the electromechanical bottom box 13.

[0040] When the antique plain brick wall reinforcement structure of the utility model is used to reinforce the antique plain brick wall, the reinforcement method includes the following steps:

[0041] Positioning and setting out → base wall treatment → tie bar installation → base cleaning → interface agent application → steel mesh installation → reinforcement layer construction → keel assembly and electromechanical pipeline installation → rock wool layer installation → decorative panel installation, and the specific construction process includes:

[0042] 1. Positioning and laying out

[0043] Use ink lines to mark the wall that needs to be reinforced, select and mark the installation position of the tie bars (try to avoid bricks in good condition), consider the tie bars and the construction work surface, and excavate the earth within a width of 1.2m beside the wall to a depth of the bottom of the foundation beam.

[0044] 2. Base wall treatment

[0045] 1) Base surface treatment

[0046] The bonding surface of the wall reinforcement must be clean, free of dirt, moisture and frost.

[0047] The plaster layer on the reinforced part needs to be removed with an electric hammer until the brick body is exposed; the dirt on the wall without the plaster layer can be removed with a hard-bristle brush dipped in high-efficiency detergent and then rinsed clean with cold water.

[0048] 2) Base defect treatment

[0049] Various defects in the base (such as loose debris, voids, corrosion layers, etc.) are removed by chiseling until the solid brick body is exposed. After chiseling, the dust and debris are washed away and filled with fine stone concrete.

[0050] 3. Installation of tie bars

[0051] Take out the bricks marked for installing the tie bars, fill the positions where the bricks were taken out with high-ductility concrete, and anchor the L-shaped tie bars into the wall.

[0052] 4. Cleaning the base

[0053] After the base layer is cleaned, it should be watered to make it moist. Watering should be done at least twice. The first time can be done 5 to 8 hours before applying the interface agent, and the second time should be done about 2 hours before applying the interface agent. Watering should be sufficient and no visible water should remain.

[0054] 5. Apply interface agent

[0055] After the base is cleaned, the interface agent should be sprayed. Before the application of the interface agent, there should be no water or oil on the surface of the base. The interface agent should be stirred as it is used and applied evenly. The interface agent should be maintained after spraying, and waterproof and dust-proof measures should be taken during the maintenance period.

[0056] 6. Steel mesh installation

[0057] First, roughly install the six-way adjustable connector on the tie bar through the tie bar sleeve, and then use the theodolite to accurately adjust the six-way adjustable connector so that it is on the same plane; install the vertical and horizontal bars of the steel mesh through the steel sleeve (movable) on the fixed ring. The vertical and horizontal bars are all-wire steel bars. When installing the steel mesh, pay attention to the protection of the interface agent that has been constructed, and repair the damaged parts in time.

[0058] It should be noted that the tie bar sleeve and the connecting piece sleeve of the six-way adjustable connector are fixed to each other and then fixed through a fixed bracket and a fixed ring; the steel bar sleeve is pre-inserted into the fixed ring and is a movable component to facilitate the installation of the steel bar. In addition, the steel bar sleeve on the opposite side is a reverse thread, and the steel bar can be installed and fixed by simply rotating the steel bar clockwise.

[0059] 7. Construction of reinforcement layer

[0060] The reinforcement layer uses high-ductility concrete, which is sprayed in layers according to the thickness of the high-ductility concrete, and the surface of each layer is roughened. When the interface agent is dry, the first layer is sprayed into the gap between the steel bar and the reinforced wall, preferably to basically cover the steel mesh (about 15mm to 20mm), and compacted with an iron trowel to make the high-ductility concrete pass through the steel mesh and tightly bonded to the reinforced wall; the middle layers are sprayed in layers, and the next spraying time is before the initial setting of the previous layer, and the thickness of each layer does not exceed 20mm. When constructing high-ductility concrete, pay attention to the protection of the sleeve of the connector to prevent the sleeve from being contaminated and blocked, which will affect the installation of the connector.

[0061] After the construction is completed, the mortar and other debris spilled on the site should be cleaned up in time. In addition, enclosure measures should be taken at the construction site to allow the high-ductility concrete to be cured in an environment that is not ventilated and not easily exposed to sunlight, and the curing temperature should not be lower than 5°C.

[0062] After the construction is completed, start spraying water to maintain the surface and ensure that the base surface is moist. During the maintenance period, it is strictly forbidden to disturb the reinforced parts.

[0063] 8. Installation of keel components and electromechanical pipelines

[0064] After the high-ductility concrete is cured, the keel assembly is installed. The main keel is installed first. The main keel is firmly fixed by the connector and the connector sleeve. The main keel is leveled by the two fixing nuts on the fixing ribs, and then the secondary keel and the edge keel are installed. According to the arrangement of the electromechanical terminal points, the electromechanical wire conduit and electromechanical bottom box are installed. The electromechanical wire conduit and electromechanical bottom box are firmly fixed to the keel assembly, and additional keels are added if necessary.

[0065] 9. Rockwool layer installation

[0066] The installation of the rock wool layer must be dense, and the interfering positions such as electromechanical wire conduits, electromechanical bottom boxes, main keels, and connectors should be treated with emphasis to ensure that the gaps between the high-ductility concrete are filled densely without omissions to ensure the thermal insulation and sound insulation effects of the wall.

[0067] 10. Installation of veneer panels

[0068] According to the layout size of the electromechanical terminal points, holes should be opened in the decorative panel in advance as the reserved installation opening for the electromechanical base box. Then, the decorative panel with more electromechanical points should be installed on the same wall first, and then other decorative panels should be installed in sequence. Finally, the electromechanical panel should be installed at the reserved installation opening.

[0069] The antique plain brick wall reinforcement structure of the utility model is adopted to consider the requirements of building thermal insulation and energy saving, and to avoid the grooves of mechanical and electrical pipelines on high-ductility concrete to affect the effect of wall reinforcement; reduce the cost of spraying high-ductility concrete surface leveling; and avoid the influence of interior wall decoration on the high-ductility concrete base. The utility model connects tie bars, steel mesh, and keel fixing bars through customized six-way adjustable connectors to avoid the damage of high-ductility concrete base by electric welding, and integrates the construction of plain brick wall reinforcement, mechanical and electrical pipeline installation, and interior wall decoration. It can not only improve the bearing capacity of the wall without affecting the exterior wall repair, but also protect the reinforced wall to provide conditions for the internal construction of the building, and has certain promotion value.

[0070] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An antique plain brick wall reinforcement structure, characterized in that: It includes an existing wall and a filler filled in the area to be reinforced on the existing wall, wherein tie bars are fixedly installed in the filler, and a steel mesh covering the area to be reinforced is provided on the surface of the existing wall. The first end of the tie bar is anchored in the existing wall, and the second end extends out of the surface of the filler and is connected to the steel mesh. The surface of the existing wall is provided with a reinforcement layer covering the steel mesh, and a keel component for installing a decorative panel is provided on the side of the reinforcement layer facing away from the existing wall, and the keel component is connected to the steel mesh.

2. The antique plain brick wall reinforcement structure according to claim 1, characterized in that: The steel mesh is formed by overlapping transverse reinforcement and vertical reinforcement. The connection nodes on the steel mesh include a first node corresponding to the area to be reinforced and a second node corresponding to other areas. A connecting piece is provided at a position corresponding to the first node on the keel assembly, and the tie bars are provided at positions corresponding to the first nodes in the filler. A fracture is formed between the transverse reinforcement and the vertical reinforcement at the first node, and the tie bars, the keel assembly, the transverse reinforcement and the vertical reinforcement are connected and fixed together through a six-way adjustable connector.

3. The antique plain brick wall reinforcement structure according to claim 2, characterized in that: The six-way adjustable connector includes a plurality of steel bar sleeves arranged horizontally for connecting the transverse bars or vertically for connecting the vertical bars, as well as a tie bar sleeve arranged perpendicular to the surface of the existing wall and used to connect the tie bars and a connector sleeve used to connect the connector. The plurality of steel bar sleeves are fixedly connected by a fixing ring, and a fixing bracket is fixedly connected between the tie bar sleeve and the fixing ring, and between the connector sleeve and the fixing ring.

4. The antique plain brick wall reinforcement structure according to claim 3, characterized in that: The keel assembly includes a plurality of main keels and a plurality of secondary keels cross-connected in a grid structure, the connecting piece is connected to the intersection node between each main keel and the corresponding secondary keel, and the connecting piece sleeve passes through the reinforcement layer and is connected to the connecting piece sleeve.

5. The antique plain brick wall reinforcement structure according to claim 4, characterized in that: The main keel is provided with a through hole for the connecting piece to pass through. The connecting piece is passed through the through hole and is used to cooperate with at least two fixing nuts to fix the main keel and the connecting piece together.

6. The antique plain brick wall reinforcement structure according to claim 1, characterized in that: The filler and the reinforcement layer are both made of high-ductility concrete.

7. The antique plain brick wall reinforcement structure according to claim 1, characterized in that: A rock wool layer is provided between the keel assembly and the reinforcement layer, in which an organic electrical conduit and an electromechanical bottom box connected to the electromechanical conduit are pre-embedded, and both the electromechanical conduit and the electromechanical bottom box are connected to the keel assembly.

8. The antique plain brick wall reinforcement structure according to claim 7, characterized in that: An installation opening is reserved on the decorative panel at a position corresponding to the electromechanical bottom box, an electromechanical panel is arranged in the installation opening, and the electromechanical panel covers and is connected to the surface of the electromechanical bottom box.

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