Composite structure for building reinforcement

Abstract

The embodiment of the present application provides a composite structure for building reinforcement, which comprises a plate-shaped composite structure, wherein the plate-shaped composite structure is fixedly attached to the surface of a building and comprises a first fiber layer, a metal layer and a second fiber layer from the surface of the building outward in sequence; the plate-shaped composite structure has flexibility and changes with the shape of the surface of the building after being fixed to the surface of the building. The plate-shaped composite structure in the composite structure has the characteristics of low cross-sectional height, large unfolding area and stress dispersion, and has the advantages of good adhesion after being fully glued to the interface of the building, can effectively provide support, can provide rapid reinforcement and increase the bearing capacity for the building with small construction space, and is especially suitable for the installation of internal small-limit buildings and tunnels. The composite structure can very effectively, flexibly and quickly provide a new reliable option for the constructor, and realizes the life extension of the reinforced building.

Description

Technical Field

[0001] This invention relates to the field of building reinforcement technology, and in particular to a composite structure for building reinforcement. Background Technology

[0002] With the rapid development of national economic construction, there is an increasing number of buildings or tunnels with small internal spaces. Over time, these structures, due to aging or the effects of external environmental changes, suffer from insufficient load-bearing capacity or concrete spalling, necessitating reinforcement in certain areas. However, the spaces requiring reinforcement are not always spacious, making construction difficult, especially when available space is limited or the building is already in operation. Large-section reinforcement materials can obstruct space, traditional materials often fail to meet insulation, corrosion resistance, and flame retardancy requirements, and construction cycles are too long and complex, impacting normal operation. Furthermore, the construction deadlines provided by operating management units are often very short, making construction difficult and structural reinforcement impossible. In addition, reinforcement structures installed in confined spaces need to comprehensively consider factors such as small cross-section, high strength, corrosion resistance, good insulation, high installation efficiency, and low cost to provide contractors with a reliable and quick on-site installation option, thereby enhancing the load-bearing capacity and extending the service life of the reinforced structure. Summary of the Invention

[0003] To address the shortcomings or deficiencies of the existing technology, this application provides a building composite structure device that can be quickly, simply, and flexibly assembled and installed on-site. This device provides rapid reinforcement and increased load-bearing capacity for buildings with limited construction space. The composite structure for building reinforcement includes a plate-like composite structure, wherein:

[0004] The plate-shaped composite structure is bonded and fixed to the building surface, and includes a first fiber layer, a metal layer and a second fiber layer in sequence from the building surface outward. The plate-shaped composite structure is flexible and changes with the shape of the building surface after being fixed to it.

[0005] The metal layer is a mesh metal layer;

[0006] The mesh metal layer is formed by weaving metal wires or by hollowing out a metal plate;

[0007] The composite structure used for building reinforcement also includes:

[0008] At least one rib-shaped fixing member is attached to the outer surface of the plate-shaped composite structure for fastening the plate-shaped composite structure to the building surface.

[0009] In a specific implementation, the first fiber layer includes at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer and glass fiber layer, and the second fiber layer includes at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer and glass fiber layer.

[0010] In practice, the second fiber layer is a basalt fiber layer.

[0011] In specific implementation, the fiber weaving direction of the first fiber layer and the fiber weaving direction of the second fiber layer intersect each other.

[0012] In specific implementation, the plate-like composite structure further includes:

[0013] At least one first anchor fixing tube is provided to connect the plate-shaped composite structure to the building surface anchor, the first anchor fixing tube being disposed through the plate-shaped composite structure and having flanges at both ends extending to the outside of the tube body.

[0014] In practice, the layers within the plate-shaped composite structure and the plate-shaped composite structure are all bonded and fixed with adhesive.

[0015] In specific implementation, the rib-shaped fixing member includes a metal tube layer and a fiber layer from the inside to the outside.

[0016] In specific implementation, one end of the rib-shaped fixing member is provided with a slurry inlet threaded pipe, and the other end is provided with an exhaust threaded pipe.

[0017] In specific implementation, the metal tube layer includes multiple metal tubes connected end to end, and each metal tube is connected to the others in sequence through an inner sleeve.

[0018] In specific implementation, the inner sleeve includes a first small-diameter end and a second small-diameter end, wherein:

[0019] The cross-sectional shapes of the first and second small-aperture ends are the same as the cross-sectional shape of the metal tube, and the cross-sectional areas of the first and second small-aperture ends are smaller than the cross-sectional area of ​​the metal tube.

[0020] The cross-sectional shape of the middle part of the inner sleeve is the same as that of the metal tube.

[0021] In specific implementation, the rib-shaped fixing member further includes:

[0022] A reinforcing connecting plate is provided covering the outside of the inner sleeve. One end of the reinforcing connecting plate is fixedly connected to the metal tube at one end of the inner sleeve, and the other end of the reinforcing connecting plate is fixedly connected to the metal tube at the other end of the inner sleeve.

[0023] In specific implementation, the rib-shaped fixing member is a solid member composed of metallic and non-metallic materials.

[0024] In specific implementation, the rib-shaped fixing member further includes:

[0025] At least one second anchor bolt fixing tube is provided, which passes through the rib-shaped fixing member and has second flanges at both ends extending to the outside of the tube body.

[0026] Compared with the prior art, this application has the following technical effects:

[0027] In this application, the plate-like composite structure in the composite structure has the characteristics of low cross-sectional height, large unfolded area, and distributed stress. It exhibits good adhesion after thorough bonding with the building interface. The rib-like fixing member with the second anchor bolt fixing tube has the characteristics of high strength, small cross-section, and light weight. The second anchor bolt fixing tube is continuously installed on both sides of the rib-like fixing member and the plate-like composite structure. By using anchor bolts to connect them to the building base surface, they can share the load, which is beneficial to enhancing the reinforcement effect. The plate-like composite structure utilizes its wide area to increase the load-bearing reinforcement area. In the plate-like composite structure, the second fiber layer structure is intersected and arranged on the outer side of the plate-like composite structure. A metal sandwich structure is placed at the center of the plate-like composite structure, and a first fiber layer is placed on the other side of the plate-like composite structure. This cross-arranged composite structure can fully utilize the tensile strength, corrosion resistance, and insulation properties of fibers, as well as the stiffness and ductility of metals. The composite layers can be repeatedly stacked according to the load-bearing capacity requirements. The rib-shaped fixing members can locally strengthen the load-bearing capacity of the plate-like composite structure. After the structure is used in combination, it can generate superimposed force with the building structure, so that it shares the load with the building and increases the overall load-bearing capacity. The rib-shaped fixing members are superimposed on the two sides of the plate-like composite structure to prevent the sides of the plate-like composite structure from loosening. The aforementioned layers are connected to the reinforced structure via anchor bolts and adhesive to form a layered connection. Through the superposition of the above materials, the advantages of the composite materials of the plate-shaped composite structure and the rib-shaped fixing components are fully utilized, and the characteristics of the original single materials are superior. The rib-shaped fixing components provide the composite structure with compressive and bending resistance, while the plate-shaped composite structure provides the composite structure with common load-bearing capacity. Therefore, this composite structure can provide rapid reinforcement and increase load-bearing capacity for buildings with limited construction space, and is especially suitable for the installation of internal small-clearance buildings and tunnels. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some specific embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of a composite structure for building reinforcement according to a specific embodiment of the present invention;

[0030] Figure 2 This is an exploded structural diagram and a cross-sectional structural diagram of a plate-shaped composite structure according to a specific embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the weaving direction of the first fiber layer and the second fiber layer according to a specific embodiment of the present invention;

[0032] Figure 4 This is a cross-sectional schematic diagram of the plate-shaped composite structure according to a specific embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the first anchor bolt fixing tube and a cross-sectional view and a top view of the plate-shaped composite structure having the first anchor bolt fixing tube according to a specific embodiment of the present utility model.

[0034] Figure 6 This is a three-dimensional structural schematic diagram and cross-sectional view of a ribbed fixing member having a second anchor bolt fixing tube according to a specific embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram of the overall structure and an exploded view of the ribbed fixing member with anchor bolts according to a specific embodiment of the present invention.

[0036] Figure 8 This is a structural schematic diagram of the metal tube layer, fiber layer and second anchor bolt fixing tube of the ribbed fixing member according to a specific embodiment of the present utility model.

[0037] Figure 9 This is a schematic diagram of the overall structure and an exploded view of a ribbed fixing member without anchor bolts according to a specific embodiment of the present invention.

[0038] Figure 10 This is a structural schematic diagram of the end cap according to a specific embodiment of the present utility model;

[0039] Figure 11This is a structural schematic diagram of the slurry inlet threaded pipe and the exhaust threaded pipe according to a specific embodiment of the present utility model;

[0040] Figure 12 These are side and top views of the second anchor bolt fixing tube according to a specific embodiment of the present invention.

[0041] The numbers in the diagram are as follows: Plate-shaped composite structure 100; First fiber layer 110; Metal layer 120; Second fiber layer 130; First anchor bolt fixing tube 140; First anchor bolt hole 150; First flange 141; Rib-shaped fixing member 200; Second anchor bolt fixing tube 210; Second flange 211; Metal tube 220; Inner sleeve 230; Reinforcing connecting plate 240; Second anchor bolt hole 250; Metal tube layer 260; Fiber layer 270; End cap plate 280; Grout inlet threaded tube 291; Vent threaded tube 292; Anchor bolt 300; Cement-based grouting material 400. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the specific 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 illustrative specific embodiments and their descriptions are only used to explain the present invention, but are not intended to limit the present invention.

[0043] like Figure 1 , Figure 2 As shown, this application provides a building composite structure device that can be quickly, simply, and flexibly assembled and installed on-site, for providing rapid reinforcement and increasing load-bearing capacity in buildings with limited construction space. The composite structure for building reinforcement includes a plate-like composite structure 100, wherein:

[0044] The plate-shaped composite structure 100 is attached and fixed to the surface of the building. From the surface of the building outward, it includes a first fiber layer 110, a metal layer 120 and a second fiber layer 130 in sequence. The plate-shaped composite structure 100 is flexible and changes with the shape of the building surface after being fixed to the building surface.

[0045] In specific implementations, the metal layer 120 can be selected in various ways. For example, the metal layer 120 can be a plate-shaped metal layer, a mesh-shaped metal layer, or a perforated plate-shaped metal layer. A mesh-shaped metal layer or a perforated plate-shaped metal layer can effectively ensure overall strength while reducing the weight of the composite structure. Furthermore, the mesh-shaped metal layer can be formed by weaving metal wires or by perforating a metal plate.

[0046] In specific implementations, the selection of the first fiber layer 110 and the second fiber layer 130 can have various embodiments. For example, the first fiber layer 110 may include at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer, and glass fiber layer, and the second fiber layer 130 may include at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer, and glass fiber layer. Furthermore, considering that the second fiber layer 130 is disposed on the outside, and that the basalt fiber layer has excellent fireproof and flame-retardant effects, the applicant has chosen the basalt fiber layer as the second fiber layer.

[0047] In specific implementations, the weaving method (winding method) of the first fiber layer 110 and the second fiber layer 130 can have multiple implementation schemes. For example, such as... Figure 3 As shown, in order to effectively improve the strength of the fiber layer, the fiber weaving direction of the first fiber layer 110 and the fiber weaving direction of the second fiber layer 130 can intersect each other, that is, they are not weaved in parallel.

[0048] In specific implementation, the connection and fixation between the plate-like composite structure 100 and the building surface can have various implementation schemes. For example, to effectively improve the connection stability, the plate-like composite structure 100 can be fixed to the building with bolts. Therefore, as... Figure 2 , Figure 5 As shown, the plate-like composite structure 100 may further include:

[0049] At least one first anchor bolt fixing tube 140 is provided to connect the plate-like composite structure 100 to the building surface anchor bolts. The first anchor bolt fixing tube 140 is disposed through the plate-like composite structure 100 and has first flange portions 141 extending to the outside of the tube body at both ends. The prefabricated first anchor bolt fixing tube 140 allows for quick installation of anchor bolts 300 on the construction site, thus effectively improving the convenience of anchor bolt 300 fixing. The first flange portions 141 prevent fiber scattering caused by fiber layer breakage due to opening, thus preventing a reduction in the strength of the plate-like composite structure 100. During installation, the first anchor bolt fixing tube 140 needs to be fixed within the first anchor bolt hole 150.

[0050] In specific implementations, the connection and fixation between the internal layers of the plate-like composite structure 100 and between the plate-like composite structure 100 and the building surface can have various implementation schemes. For example, to effectively ensure the stability of the connection, the internal layers of the plate-like composite structure 100 and the plate-like composite structure 100 and the building surface can all be fixed by adhesive. Optionally, the adhesive can be epoxy resin or other adhesives to further improve the reliability of the connection between the building and the composite structure.

[0051] In specific implementation, the outer surface of the second fiber layer 130 may also be provided with a coating for corrosion prevention, flame retardancy, and insulation when necessary, thereby further enhancing the flame retardant and insulation effects of the composite structure.

[0052] In specific implementation, in order to effectively improve the supporting effect of the composite structure, such as Figure 1 , Figure 7 As shown, the composite structure for building reinforcement may further include:

[0053] At least one rib-shaped fixing member 200 is attached to the outer surface of the plate-shaped composite structure 100 for fastening the plate-shaped composite structure 100 to the surface of the building.

[0054] For example, such as Figure 8 As shown, the ribbed fixing member 200 may further include a metal tube layer 260 and a fiber layer 270 from the inside out. Specifically, the metal tube layer 260 may be made of stainless steel to prevent corrosion in humid environments.

[0055] Furthermore, since cement-based grout 400 has advantages such as low cost, good compressive strength, good corrosion resistance, and long service life, a filling structure can also be provided inside the metal tube layer 260 of the rib-shaped fixing member 200. This filling structure can be made of cement-based grout 400 to ensure that the reinforced structure has good compressive strength and corrosion resistance.

[0056] Furthermore, the fiber layer outside the metal tube layer 260 can be made of unidirectional fibers. While ensuring sufficient reinforcement strength, using at least one layer of unidirectional fibers in the metal tube layer 260, compared to cross-fiber arrangements, is more effective in maximizing strength and saving costs. Specifically, the fiber layer can include an inner fiber layer and an outer fiber layer. The inner fiber layer is longitudinally positioned inside the metal tube layer 260, and the outer fiber layer circumferentially wraps around the longitudinal fibers of the metal tube layer 260 to reinforce it, preventing the inner fiber layer of the rib-shaped fixing member 200 from loosening. The fiber layer and the metal tube layer 260 are connected with adhesive. Based on experimental data, this embodiment can provide various reinforcement needs for buildings with limited construction space, and is particularly suitable for situations with small installation clearances.

[0057] Furthermore, the fiber layer can be made of basalt fiber, carbon fiber, and / or aramid fiber. Specifically, the fiber layer can be constructed using a cross-woven composite of basalt fibers. During weaving, adhesive can be used to connect the outer fiber layer, inner fiber layer, and outer wall of the metal tube 220 of the rib-shaped fixing member 200, thereby improving the reliability of the connection between the fiber layer structure and the cavity wall structure of the metal tube 220.

[0058] The applicant chose to use basalt fibers arranged in a circumferential cross pattern in the outer fiber layer of the ribbed fixing member 200 because basalt fibers have high strength and excellent anti-aging, insulation, corrosion resistance, flame retardancy, environmental friendliness, and economy. Their non-combustibility is the best compared to carbon fiber and aramid fiber. The inner fiber layer uses carbon fiber arranged axially because carbon fiber has advantages such as high temperature resistance and good tensile strength in practical applications. Although aramid fiber also has advantages such as insulation and anti-aging properties, it is the most expensive. Glass fiber is cheaper than the above three, but its overall performance is the worst. Therefore, these four fibers can be selected individually or in combination. However, carbon fiber's conductivity limits its environmental applicability. Furthermore, carbon fiber is expensive, resulting in a low cost-performance ratio. Aramid fiber is the most expensive of the four fibers and has the lowest cost-performance ratio when used alone. Therefore, in specific implementations, a combination of a carbon fiber inner fiber layer and a basalt fiber outer fiber layer offers a higher cost-performance advantage.

[0059] In specific implementation, in order to fill the interior of the metal pipe layer 260 with cement-based grout 400, such as... Figure 1 , Figure 11 As shown, one end of the ribbed fixing member 200 may be provided with a slurry inlet threaded pipe 291, and the other end may be provided with a vent threaded pipe 292. The threaded slurry inlet and vent metal pipes 220 can be quickly connected to external equipment, improving convenience.

[0060] In practice, the metal tube layer 260 can be configured in various ways, for example, as follows: Figure 7 , Figure 9 As shown, the metal tube layer 260 may include multiple metal tubes 220 connected end to end, and the metal tubes 220 are connected to each other in sequence by inner sleeves 230. The inner sleeves 230 can effectively improve the connection reliability of the metal tube layer 260.

[0061] Furthermore, the inner sleeve 230 can be configured in various ways. For example, the inner sleeve 230 may include a first small-diameter end and a second small-diameter end, wherein:

[0062] The cross-sectional shapes of the first and second small-aperture ends are the same as those of the metal tube 220, and the cross-sectional areas of the first and second small-aperture ends are smaller than those of the metal tube 220. The cross-sectional shape of the middle portion of the inner sleeve 230 is the same as that of the metal tube 220. The first and second small-aperture ends are respectively inserted into the metal tube 220, thereby connecting adjacent metal tubes 220 together.

[0063] Furthermore, such as Figure 1 , Figure 7 and Figure 9As shown, the rib-shaped fixing member 200 may further include:

[0064] A reinforcing connecting plate 240 is provided to cover the outside of the inner sleeve 230. One end of the reinforcing connecting plate 240 is fixedly connected to the metal tube 220 at one end of the inner sleeve 230, and the other end of the reinforcing connecting plate 240 is fixedly connected to the metal tube 220 at the other end of the inner sleeve 230.

[0065] In specific implementation, the rib-shaped fixing member 200 can be provided in various ways. For example, the rib-shaped fixing member 200 can be a solid member composed of metal and non-metal materials in a stacked or woven manner, thereby effectively improving the support capacity.

[0066] In specific implementation, such as Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 12 As shown, the rib-shaped fixing member 200 may further include:

[0067] At least one second anchor bolt fixing tube 210 is provided axially through the rib-shaped fixing member 200, and has second flange portions 211 extending to the outside of the tube body at both ends.

[0068] The installation of the second anchor bolt fixing pipe 210 further enhances the reliability of the connection between the composite structure device and the building. Furthermore, it effectively prevents the cement-based grout 400 from overflowing during the injection of the grout into the metal pipe layer 260. During installation, the second anchor bolt fixing pipe 210 needs to be fixed within the second anchor bolt hole 250.

[0069] Furthermore, the number of the first anchor fixing tube 140 and the second anchor fixing tube 210 can be specifically set as needed, and the positions of the first anchor fixing tube 140 and the second anchor fixing tube 210 can overlap so that the anchor can pass through the first anchor fixing tube 140 and the second anchor fixing tube 210 at the same time, thereby reducing the number of openings and effectively fixing the composite structure.

[0070] Furthermore, there are various implementation schemes for the selection of materials for the first anchor bolt fixing tube 140 and the second anchor bolt fixing tube 210. For example, the first anchor bolt fixing tube 140 and the second anchor bolt fixing tube 210 can both be made of stainless steel tube or galvanized steel tube, which can provide reliable support on the one hand and prevent corrosion in humid environments on the other.

[0071] In specific implementations, the cross-sectional shape of the rib-shaped fixing member 200 can be configured in various ways. For example, the cross-sectional shape of the rib-shaped fixing member 200 includes, but is not limited to, a rectangle. Those skilled in the art can make adaptive adjustments according to the actual situation. Furthermore, the metal tube layer 260 may include one or more rectangular cross-sectional metal tubes 220 arranged side by side, thereby facilitating the wrapping of a fiber layer on the outside of the metal tube layer 260.

[0072] Specifically, such as Figure 10 As shown, the rib-shaped fixing member 200 may further include an end cover plate 280, which is used to seal the end of the metal tube layer 260 structure of the rib-shaped fixing member 200. The end cover plate 280 is disposed at the very end of the metal tube layer 260 to seal the cavity of the metal tube layer 260 and prevent the filling material of the cement-based grouting material 400 from leaking out.

[0073] Optionally, the end cover 280 is made of metal or non-metal materials.

[0074] In this embodiment, the end cover 280 is made of stainless steel to prevent corrosion caused by humid environments.

[0075] Optionally, the building includes various types of buildings, but is not limited to tunnels, bridges, or culverts.

[0076] Compared with the prior art, this application has the following technical effects:

[0077] In this application, the plate-like composite structure 100 in the composite structure has the characteristics of low cross-sectional height, large unfolded area, and distributed stress. It has good adhesion after sufficient bonding with the building interface. The rib-like fixing member 200 with the second anchor bolt fixing tube 210 has the characteristics of high strength, small cross-section, and light weight. The second anchor bolt fixing tube 210 is disposed through the rib-like fixing member 200 and the plate-like composite structure 100 on both sides. By using anchor bolts to overlap and connect them with the building base surface, they can share the load, which is beneficial to enhancing the reinforcement effect. The plate-like composite structure 100 utilizes its wide area to increase the load-bearing reinforcement area. In the plate-like composite structure 100, the second fiber layer 130 structure is crosswise arranged in the plate-like composite structure 100. On the outside, a metal sandwich structure is set at the center of the plate-shaped composite structure 100, and the first fiber layer 110 is set on the other side of the plate-shaped composite structure 100. This cross-set composite structure can give full play to the tensile strength, corrosion resistance, insulation and rigidity and ductility of the fiber and the metal. The composite layers can be repeatedly stacked according to the load-bearing capacity requirements. The rib-shaped fixing member 200 can locally strengthen the load-bearing capacity of the plate-shaped composite structure 100. After the structure is used, it can generate superimposed force with the building structure, so that it shares the load with the building and increases the overall load-bearing capacity. The rib-shaped fixing member 200 is superimposed on the two sides of the plate-shaped composite structure 100 to prevent the sides of the plate-shaped composite structure 100 from loosening. The aforementioned layers are connected to the reinforced structure via anchor bolts and adhesives to form a layered connection. Through the superposition of the above materials, the advantages of the composite materials of the plate-shaped composite structure 100 and the rib-shaped fixing member 200 are fully utilized, and the characteristics of each individual material are superior. The rib-shaped fixing member 200 provides the composite structure with compressive and bending resistance, while the plate-shaped composite structure 100 provides the composite structure with shared load-bearing capacity. Therefore, this composite structure can provide rapid reinforcement and increase load-bearing capacity for buildings with limited construction space, and is especially suitable for the installation of internal small-clearance buildings and tunnels.

[0078] The rib-shaped fixing member 200 can be a solid metal body with woven fibers on the outer wall, or it can be a metal tube layer 260 with cement-based grout 400 filling the inner cavity. The fiber layer on the outer wall of the metal tube layer 260 can include an inner fiber layer and an outer fiber layer. The inner fiber layer structure uses basalt fiber or aramid fiber, and the outer fiber layer structure uses a combination of basalt fiber or other fibers. Using basalt fiber is more advantageous in terms of cost saving and has insulation, corrosion resistance, and flame retardant properties. The metal tube layer 260 can be a thin metal tube 220 to increase the ductility and stiffness of the building composite structure device. Under the premise of meeting the reinforcement bearing capacity, the thin metal tube 220 is advantageous in terms of cost saving and weight reduction.

[0079] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0080] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0081] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0082] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. The application has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the claims of this application.

Claims

1. A composite structure for building reinforcement, characterized in that, The composite structure used for building reinforcement includes a plate-like composite structure, wherein: The plate-shaped composite structure is bonded and fixed to the building surface, and includes a first fiber layer, a metal layer and a second fiber layer in sequence from the building surface outward. The plate-shaped composite structure is flexible and changes with the shape of the building surface after being fixed to it. The metal layer is a mesh metal layer; The mesh metal layer is formed by weaving metal wires or by hollowing out a metal plate; The composite structure used for building reinforcement also includes: At least one rib-shaped fixing member is attached to the outer surface of the plate-shaped composite structure for fastening the plate-shaped composite structure to the building surface.

2. The composite structure for building reinforcement as described in claim 1, characterized in that, The first fiber layer includes at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer and glass fiber layer, and the second fiber layer includes at least one of basalt fiber layer, carbon fiber layer, aramid fiber layer and glass fiber layer.

3. The composite structure for building reinforcement as described in claim 1, characterized in that, The second fiber layer is a basalt fiber layer.

4. The composite structure for building reinforcement as described in claim 1, characterized in that, The fiber weaving direction of the first fiber layer intersects with the fiber weaving direction of the second fiber layer.

5. The composite structure for building reinforcement as described in claim 1, characterized in that, The plate-shaped composite structure further includes: At least one first anchor bolt fixing tube is provided to connect the plate-shaped composite structure to the building surface anchor bolts. The first anchor bolt fixing tube is provided through the plate-shaped composite structure and has first flanges at both ends extending to the outside of the tube body.

6. The composite structure for building reinforcement as described in claim 1, characterized in that, The internal layers of the plate-shaped composite structure and the plate-shaped composite structure are all bonded and fixed with adhesive.

7. The composite structure for building reinforcement as described in claim 1, characterized in that, The rib-shaped fixing member comprises, from the inside out, a metal tube layer and a fiber layer.

8. The composite structure for building reinforcement as described in claim 7, characterized in that, One end of the rib-shaped fixing member is provided with a grout inlet threaded pipe, and the other end is provided with an exhaust threaded pipe.

9. The composite structure for building reinforcement as described in claim 7, characterized in that, The metal tube layer comprises multiple metal tubes connected end to end, and each metal tube is connected to the others in sequence via an inner sleeve.

10. The composite structure for building reinforcement as described in claim 9, characterized in that, The inner sleeve includes a first small-diameter end and a second small-diameter end, wherein: The cross-sectional shapes of the first and second small-aperture ends are the same as the cross-sectional shape of the metal tube, and the cross-sectional areas of the first and second small-aperture ends are smaller than the cross-sectional area of ​​the metal tube. The cross-sectional shape of the middle part of the inner sleeve is the same as that of the metal tube.

11. The composite structure for building reinforcement as described in claim 10, characterized in that, The rib-shaped fixing member further includes: A reinforcing connecting plate is provided covering the outside of the inner sleeve. One end of the reinforcing connecting plate is fixedly connected to the metal tube at one end of the inner sleeve, and the other end of the reinforcing connecting plate is fixedly connected to the metal tube at the other end of the inner sleeve.

12. The composite structure for building reinforcement as described in claim 1, characterized in that, The rib-shaped fixing member is a solid member composed of metallic and non-metallic materials.

13. The composite structure for building reinforcement as described in claim 1, characterized in that, The rib-shaped fixing member further includes: At least one second anchor bolt fixing tube is provided, which passes through the rib-shaped fixing member and has second flanges at both ends extending to the outside of the tube body.

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