CN217538751U

CN217538751U - Bamboo anchor rod component reinforced by FRP (fiber reinforced Plastic)

Info

Publication number: CN217538751U
Application number: CN202123385071.2U
Authority: CN
Inventors: 孟鑫淼; 严立汀; 冯鹏; 张韵淇; 郝龙斌; 张志滨; 李翔; 赵帅宇; 吕立群
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-10-04
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses an adopt bamboo stock subassembly of FRP reinforcing, bamboo stock subassembly includes: bamboo stock and FRP enhancement layer, FRP enhancement layer include the base member and locate the fibrous structure of base member, and the bamboo stock is located to the FRP enhancement layer, and the FRP enhancement layer passes through the adhesive linkage and connects in the bamboo stock. According to the utility model discloses adopt bamboo stock subassembly of FRP reinforcing, through set up the FRP enhancement layer on the bamboo stock, can improve the structural strength of bamboo stock subassembly, the corrosion resisting property of reinforcing bamboo stock subassembly inhibits fissured extension on the bamboo stock effectively, improves the durability of bamboo stock subassembly to can improve the bearing capacity of bamboo stock effectively, prolong the life of bamboo stock.

Description

Bamboo anchor rod component reinforced by FRP (fiber reinforced Plastic)

Technical Field

The utility model belongs to the technical field of the stock and specifically relates to an adopt bamboo stock subassembly of FRP reinforcing.

Background

The anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes, rock-soil deep foundation pits and the like and underground chamber construction such as tunnels, stopes and the like. The method is characterized in that a pole column is made of metal pieces, wood pieces, polymer pieces or other materials, and is driven into a hole which is drilled in advance in an earth surface rock body or a rock body around a chamber, and the special structure of the head part and the pole body and a tail supporting plate (which can be omitted) are utilized, or the surrounding rock and a stable rock body are combined together by depending on the bonding action to generate the suspension effect, the combination beam effect and the reinforcing effect, so that the aim of supporting is fulfilled.

Based on the concept of green environmental protection, the development of green building materials is trending. The bamboo wood as a fast-growing natural fiber material has the ecological advantages of reproducibility, low energy consumption, environmental friendliness and strong carbon fixation capacity, and China is one of the central production areas of the world bamboo wood, has abundant bamboo forest resources, and has a long history of people in the utilization of the bamboo wood. Therefore, the anchor rod made of bamboo materials can exert excellent performance.

However, the bamboo wood has the defects of easy mildew, low tensile strength and the like, so that the bamboo anchor rod has the problems of limited size, poor durability and the like, the mechanical property of the bamboo anchor rod cannot be well exerted, the requirement of the structural strength of the actual use of the anchor rod cannot be met, and the bamboo anchor rod cannot be widely used.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an adopt bamboo stock subassembly of FRP reinforcing, through set up the FRP enhancement layer on the bamboo stock, can improve the structural strength of bamboo stock subassembly, strengthen the corrosion resisting property of bamboo stock subassembly, restrain cracked extension on the bamboo stock effectively, improve the durability of bamboo stock subassembly to can improve the bearing capacity of bamboo stock effectively, prolong the life of bamboo stock.

According to the utility model discloses adopt bamboo stock subassembly of FRP reinforcing, include: a bamboo anchor rod; the FRP reinforcing layer comprises a base body and a fiber structure arranged on the base body, the FRP reinforcing layer is arranged on the bamboo anchor rod, and the FRP reinforcing layer is connected to the bamboo anchor rod through an adhesive layer.

According to the utility model discloses adopt bamboo stock subassembly of FRP reinforcing, through set up the FRP enhancement layer on the bamboo stock, can improve the structural strength of bamboo stock subassembly, the corrosion resisting property of reinforcing bamboo stock subassembly inhibits fissured extension on the bamboo stock effectively, improves the durability of bamboo stock subassembly to can improve the bearing capacity of bamboo stock effectively, prolong the life of bamboo stock.

According to some embodiments of the invention, the form of the FRP reinforcement layer comprises at least one of a filament, a plate, and a cloth.

According to some embodiments of the present invention, when the form of the FRP reinforcement layer includes a cloth shape, a part of the FRP reinforcement layer formed in the cloth shape is a fiber cloth, the fiber structure includes a plurality of fiber yarns, the fiber cloth includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber yarns in the unidirectional fiber part are arranged in parallel with each other, and at least a part of the multidirectional fiber cloth has an included angle between the fiber yarns.

According to some embodiments of the present invention, when the form of the FRP reinforcement layer includes a filament shape, the FRP reinforcement layer is formed as an FRP filament, the FRP filament is wound on the bamboo anchor rod, and a winding manner of the FRP filament includes at least one of single-layer unidirectional winding, multi-layer unidirectional winding, and multi-layer bidirectional winding.

According to some embodiments of the present invention, when the form of the FRP reinforcement layer includes a plate shape, the FRP reinforcement layer is formed as a fiber sheet, and the fiber sheet is sandwiched in the bamboo anchor rod or in at least one of the outer portions of the bamboo anchor rod.

According to some embodiments of the invention, the matrix is a resin matrix comprising at least one of an epoxy resin, a vinyl resin, a polyurethane resin, or a bio-based resin; and/or the fiber structure comprises at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

According to some optional embodiments of the present invention, the bamboo anchor rod comprises: the FRP reinforcing layer is arranged on at least one of the rod body and the anchor head.

In some optional embodiments according to the utility model, the anchor head includes curved section and the linkage segment that extends along the straight line, the linkage segment is two, two the one end of linkage segment connect respectively in curved section's circumference both ends, two the other end of linkage segment connect respectively in the body of rod, curved section's curvature radius is 3-25cm.

In some optional embodiments according to the present invention, the anchor head comprises a curved section and a connecting section extending along a straight line, the connecting section is two, two one end of the connecting section is connected to the circumferential both ends of the curved section respectively, the rod body comprises two rod sections extending along a straight line which are superposed, two the other end of the connecting section is connected to two the rod sections respectively.

According to some optional embodiments of the present invention, the FRP reinforcement layer is provided on one or at least one of an inner side surface, an outer side surface and an interlayer of the bamboo anchor rod.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic illustration of a bamboo anchor assembly reinforced with FRP according to some embodiments of the present invention;

fig. 2 is a schematic view of a bamboo anchor rod assembly reinforced with FRP according to further embodiments of the present invention;

fig. 3 is a schematic view of the structure of each layer of the anchor head of the bamboo anchor rod in fig. 2, which is wound with FRP threads in parallel one layer;

fig. 4 is a schematic view of the bamboo anchor in fig. 1 cross-wound two layers with FRP wires;

fig. 5 is a schematic view of the anchor head of the bamboo anchor rod of fig. 4 cross-wound by two layers of FRP wires;

fig. 6 is a perspective view of the bamboo anchor rod of fig. 2 with a fiberboard sandwiched between the primary and secondary anchor heads;

fig. 7 is a schematic view of the bamboo anchor rod of fig. 1 with a rod body wrapped with unidirectional fiber cloth;

fig. 8 is a schematic view of the bamboo anchor rod of fig. 2 with the rod body wrapped with a bi-directional fiber cloth;

fig. 9 is a schematic view of the bamboo anchor rod of fig. 1 with the rod body wrapped with a bi-directional fiber cloth;

fig. 10 is a perspective view of the bamboo anchor rod of fig. 1 with a fiberboard sandwiched between the rod bodies;

fig. 11 is a perspective view of the bamboo anchor rod of fig. 2 with a fiberboard sandwiched between the main anchor rod and the sub-anchor rod;

fig. 12 is a perspective view of the bamboo anchor rod of fig. 2 with a fiberboard sandwiched between the main and auxiliary anchor rods and the auxiliary rod body of the auxiliary anchor rod;

fig. 13 is a perspective view of the bamboo anchor of fig. 2 with an annular fiberboard sandwiched between the primary and secondary anchors;

fig. 14 is a schematic view of the bamboo anchor rod assembly of fig. 11 with unidirectional fiber cloth on the interlayer surface of the secondary anchor head;

fig. 15 is a schematic view of the bamboo anchor rod assembly of fig. 11 wrapped with unidirectional fiber cloth on the inside and outside surfaces of the anchor head.

Reference numerals:

a bamboo anchor assembly 100;

a bamboo anchor rod 10;

a rod body 11; an anchor head 12; a curved section 121; a connecting section 122; an interlayer 13; an outer side surface 14; an inner side surface 15;

a main anchor rod 2;

a main anchor head 21; a primary bending section 211; a main connection section 212;

a main rod body 22; a first stick 221; a second lever 222;

an auxiliary anchor rod 3;

the auxiliary anchor head 31; a secondary curved section 311; a secondary connecting section 312;

a sub-lever body 32; a third rod 321; a fourth bar 322;

an FRP reinforcement layer 40; the FRP wires 41; a fiber cloth 42; a fiber board 43.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A bamboo anchor rod assembly 100 reinforced with FRP according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1, 2, 7, 8, 10 and 11, a bamboo anchor rod assembly 100 reinforced with FRP according to an embodiment of the present invention includes: the FRP reinforcement layer 40 comprises a base body and a fiber structure arranged on the base body, the FRP reinforcement layer 40 is arranged on the bamboo anchor rod 10, and the FRP reinforcement layer 40 is connected to the bamboo anchor rod 10 through an adhesive layer. The FRP reinforcement layer 40 has good corrosion resistance and durability, and the bamboo anchor rod assembly 100 can prevent the surface of the bamboo anchor rod 10 from contacting with the air of the external environment by arranging the FRP reinforcement layer 40 on the bamboo anchor rod 10, so that the corrosion speed is reduced, the durability of the bamboo anchor rod 10 is improved, and the service life of the bamboo anchor rod 10 is prolonged.

The FRP reinforcement layer 40 also has higher specific strength and specific modulus, and the bamboo anchor rod assembly 100 can improve the structural strength of the bamboo anchor rod 10 by setting the FRP reinforcement layer 40 on the bamboo anchor rod 10, and improve the stress limit of the bamboo anchor rod 10, thereby improving the bearing capacity of the bamboo anchor rod 10 and reducing the overall weight of the bamboo anchor rod assembly 100. Moreover, when a crack occurs in the bamboo anchor 10, since the FRP reinforcement layer 40 is connected to the bamboo anchor 10, the crack is difficult to be continuously propagated at the connection of the FRP reinforcement layer 40 and the bamboo anchor 10, and the bamboo anchor 10 can be prevented from being damaged due to propagation of the crack, so that the service life of the bamboo anchor 10 can be prolonged.

For example, referring to fig. 1, 2, 7, 8, 10 and 11, in some specific embodiments according to the present invention, the bonding layer may be a contact layer where the substrate is in surface contact with the bamboo anchor 10. When the bamboo anchor rod assembly 100 is manufactured, the FRP reinforcement layer 40 can be connected with the bamboo anchor rod 10 when the matrix of the FRP reinforcement layer 40 is not completely solidified, so that the matrix of the FRP reinforcement layer 40 is in contact with the surface of the bamboo anchor rod 10, and after the matrix of the FRP reinforcement layer 40 is completely solidified, the FRP reinforcement layer 40 and the bamboo anchor rod 10 can be connected together through the contact layer of the matrix of the FRP reinforcement layer 40 and the bamboo anchor rod 10. Thus, the use of adhesive can be reduced, and the manufacturing cost of the bamboo anchor rod assembly 100 can be reduced.

For example, referring to fig. 1, 2, 7, 8, 10, and 11, in some particular embodiments according to the present disclosure, the bonding layer may also be an adhesive. When the bamboo anchor rod assembly 100 is manufactured, the adhesive can be firstly coated on the surface of the FRP reinforcement layer 40 or the surface of the bamboo anchor rod 10, then the FRP reinforcement layer 40 is adhered on the surface of the bamboo anchor rod 10, and the FRP reinforcement layer 40 and the bamboo anchor rod 10 can be connected together after the adhesive becomes effective. Make things convenient for the preparation of 2 subassemblies of main stock like this, can improve the production efficiency of making 2 subassemblies of main stock. Wherein the adhesive may comprise at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

According to the utility model discloses adopt bamboo stock subassembly 100 of FRP reinforcing, through set up FRP enhancement layer 40 on bamboo stock 10, can improve the structural strength of bamboo stock 10, reinforcing bamboo stock 10's corrosion resisting property suppresses cracked extension on the bamboo stock 10 effectively, improves bamboo stock 10's durability to can improve bamboo stock 10's bearing capacity effectively, prolong bamboo stock 10's life.

Referring to fig. 1, 2, 7, 8, 10 and 11, according to some embodiments of the present invention, the FRP reinforcement layer 40 includes at least one of a thread shape, a plate shape and a cloth shape in form. The filamentous FRP reinforcing layer 40 is convenient to wind, flexible to use and suitable for being wound at the bending part of the bamboo anchor rod 10, the structural strength of the bamboo anchor rod 10 at the bending part can be improved, and the bearing capacity of the bamboo anchor rod 10 is improved. The plate-shaped FRP reinforcement layer 40 also has a good bending resistance, which can improve the toughness of the bamboo anchor rod 10 and prevent the bamboo anchor rod 10 from generating a large deformation amount. The cloth-shaped FRP reinforcement layer 40 can be well attached to the outer surface of the bamboo anchor rod 10. The thread-shaped, plate-shaped and cloth-shaped FRP reinforcement layers 40 can improve the mechanical properties of the bamboo anchor rod 10, improve the bearing capacity of the bamboo anchor rod 10, effectively inhibit crack propagation on the bamboo anchor rod 10, and prolong the service life of the bamboo anchor rod 10. The bamboo anchor rod assembly 100 can achieve the superposition of various effects by using the combination of various forms of the FRP reinforcement layer 40, the bearing capacity of the bamboo anchor rod 10 can be effectively improved, and the service life of the bamboo anchor rod 10 is prolonged.

Referring to fig. 10 and 11, in some specific embodiments according to the present invention, the surface of the bamboo anchor 10 includes an inner side surface 15 and an outer side surface 14, the surface of the bamboo anchor 10 at the inner side thereof is the inner side surface 15, and the surface of the bamboo anchor 10 at the outer side thereof is the outer side surface 14. The bamboo anchor rod 10 may further be formed with an interlayer 13 in the interior thereof, and the surface defining the interlayer in the interior of the bamboo anchor rod 10 is an interlayer surface. For example, when the FRP reinforcement layer 40 is only filamentous, the FRP reinforcement layer 40 may be wound on the outer side surface 14 and the inner side surface 15 of the bamboo anchor 10; when the FRP reinforcement layer 40 is only plate-shaped, the FRP reinforcement layer 40 may be disposed at the interlayer 13 of the bamboo anchor rod 10, so that the FRP reinforcement layer 40 is connected to the interlayer surface; when the FRP reinforcement layer 40 is only in a cloth shape, the FRP reinforcement layer 40 may wrap the surface of the bamboo anchor rod 10, may only wrap the outer surface and the inner surface of the bamboo anchor rod 10, and may also be provided with a sandwich layer surface wrapped in the sandwich layer.

When the FRP reinforcement layer 40 includes two forms of filament and cloth, a layer of filament FRP reinforcement layer 40 may be wound on the surface of the bamboo anchor rod 10, and then the filament FRP reinforcement layer 40 is wrapped by a cloth FRP reinforcement layer 40. When the FRP reinforcement layer 40 includes three forms of filament, plate and cloth, the plate-shaped FRP reinforcement layer 40 may be first clamped in the bamboo anchor rod 10, and then the filament-shaped FRP reinforcement layer 40 is wound around the outer surface of the bamboo anchor rod 10, and then the cloth-shaped FRP reinforcement layer 40 is used to wrap the outer surface of the bamboo anchor rod 10.

Referring to fig. 7 to 9, according to some embodiments of the present invention, when the FRP reinforcement layer 40 includes a cloth shape, a portion of the FRP reinforcement layer 40 formed in the cloth shape is a fiber cloth 42, the fiber structure includes a plurality of fiber yarns, the fiber cloth 42 includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber yarns of the unidirectional fiber cloth are arranged in parallel with each other, and at least a portion of the fiber yarns of the multidirectional fiber cloth have an included angle therebetween. The FRP reinforcement layer 40 is formed in a cloth shape by unidirectional fiber cloth, so that the tensile strength of the bamboo anchor 10 can be improved in a fiber direction, and the compressive strength of the bamboo anchor 10 can be improved in a direction perpendicular to the fiber direction. The FRP reinforcement layer 40 is formed in a cloth shape by a multi-directional fiber cloth, so that the tensile strength of the bamboo anchor rod 10 can be improved in a plurality of directions, and the bearing capacity of the bamboo anchor rod 10 can be improved.

Referring to fig. 1 to 5, according to some embodiments of the present invention, when the FRP reinforcement layer 40 includes a filament shape, the FRP reinforcement layer 40 is formed as an FRP wire 41, the FRP wire 41 is wound on the bamboo anchor rod 10, and the winding manner of the FRP wire 41 includes at least one of a single-layer unidirectional winding, a multi-layer unidirectional winding, and a multi-layer bidirectional winding. As shown in fig. 1, the bamboo anchor 10 has a single-layer structure, and the FRP wire 41 is wound in a single-layer unidirectional winding manner. That is, the FRP wires 41 are wound one layer in a first direction (left and right directions in the drawing) when the bamboo anchor 10 is wound so that the FRP wires 41 on the anchor are parallel to each other on the same plane. As shown in fig. 2 and 3, the bamboo anchor 10 has a multi-layer structure, and the FRP wire 41 is wound in a multi-layer unidirectional winding manner. That is, when the FRP wire 41 is wound around the bamboo anchor 10, the FRP wire 41 is wound around each layer of the bamboo anchor 10 in a first direction (left-right direction in the drawing); alternatively, the FRP wires 41 may be wound in a single layer on the surface of the bamboo anchor 10 in a first direction (left-right direction in the drawing) as a whole.

As shown in fig. 4, the bamboo anchor 10 has a single-layer structure, and the FRP wire 41 is wound in a multi-layer bidirectional winding manner. That is, when the FRP wire 41 is wound around the bamboo anchor rod 10, the FRP wire 41 is wound around the bamboo anchor rod 10 by one layer in a first direction (left-right direction in the figure), and then the FRP wire 41 is wound around the layer in a second direction, which has a certain included angle with the first direction, so that a certain included angle is formed between the FRP wire 41 of the first layer and the FRP wire 41 of the second layer. When the FRP threads 41 are wound in multiple layers, the FRP threads 41 between each layer may be independent of each other, that is, after one layer is wound, the FRP threads 41 are cut off, and then one layer is wound again; after the FRP wire 41 is wound by one layer, the winding may be continued without cutting the FRP wire 41, thereby maintaining the continuity of the FRP wire 41.

Referring to fig. 6, 10-15, according to some embodiments of the present invention, when the FRP reinforcement layer 40 includes a plate shape, the FRP reinforcement layer 40 is formed as a fiber sheet 43, and the fiber sheet 43 is at least one of sandwiched in the bamboo anchor 10 or disposed outside the bamboo anchor 10. The fiberboard 43 is clamped in the bamboo anchor rod 10, and the fiberboard 43 is arranged outside the bamboo anchor rod 10, so that the bamboo anchor rod 10 can be prevented from generating large deformation, cracks caused by large deformation of the bamboo anchor rod 10 can be prevented, and the service life of the bamboo anchor rod 10 can be prolonged. As shown in fig. 10, the bamboo anchor 10 is a single-layer structure, the rod 11 includes a first rod 221 and a second rod 222 which are oppositely disposed, and the fiber plate 43 is sandwiched between the first rod 221 and the second rod 222. When the bamboo anchor rod assembly 100 is manufactured, the surface of the bamboo anchor rod 10 can be cleaned, the inner surfaces of the first rod body 221 and the second rod body 222 or the left side and the right side of the fiber plate 43 are coated with the adhesive, the fiber plate 43 is placed between the first rod body 221 and the second rod body 222, the first rod body 221, the second rod body 222 and the fiber plate 43 are compacted, and after the adhesive takes effect, the fiber plate 43 can be connected with the first rod body 221 and the second rod body 222, so that the manufacturing of the bamboo anchor rod assembly 100 is completed.

The bamboo anchor rod 10 can improve the toughness of the rod body 11 and the bending strength of the rod body 11 by arranging the fiber plate 43 in the rod body 11, so that the structural strength of the bamboo anchor rod 10 can be improved, and the bearing capacity of the bamboo anchor rod 10 is improved. Meanwhile, the bamboo anchor rod 10 can be stressed in multiple directions, so that the bamboo anchor rod assembly 100 can adapt to various working environments. For example, as shown in fig. 6, the bamboo anchor rod 10 has a double-layer structure, the bamboo anchor rod 10 includes a main anchor rod 2 and an auxiliary anchor rod 3, and an interlayer 13 is defined between the main anchor rod 2 and the auxiliary anchor rod 3, and a fiber plate 43 is disposed in the interlayer 13 between the main anchor head 21 and the auxiliary anchor head 31, so that the tensile strength of the bamboo anchor rod 10 can be improved, and the load-bearing capacity of the bamboo anchor rod 10 can be improved.

According to some embodiments of the invention, the matrix is a resin matrix comprising at least one of epoxy, vinyl, polyurethane, or bio-based resin. For example, the FRP reinforcement layer 40 may only use epoxy resin as a matrix, and the epoxy resin has a high hardness after being solidified, so that the structural strength of the bamboo anchor rod 10 can be improved, and the bearing capacity of the bamboo anchor rod 10 can be improved; the FRP reinforcement layer 40 may also use vinyl resin as a matrix, and the vinyl resin also has good corrosion resistance and flexibility, so that the tensile strength of the bamboo anchor rod 10 can be improved; the FRP reinforcement layer 40 may also use polyurethane resin as a base body, and the polyurethane resin also has good weather resistance, so that the bamboo anchor rod assembly 100 can be used for a long time in a severe environment, and the service life of the bamboo anchor rod assembly 100 is prolonged; the FRP reinforcement layer 40 may also only use bio-based resin as a matrix, and the bio-based resin is environmentally friendly and biodegradable, so that the FRP reinforcement layer 40 is more environmentally friendly, and the bamboo anchor rod assembly 100 is more environmentally friendly. The base body of the FRP reinforcing layer is formed by mixing various resins, so that the advantages of the various resins are fully exerted, the FRP reinforcing layer has better structural strength, corrosion resistance, wear resistance and weather resistance, the structural strength of the bamboo anchor rod component 100 is improved, the bearing capacity of the bamboo anchor rod component 100 is improved, and the service life of the bamboo anchor rod component 100 is prolonged.

According to some embodiments of the invention, the fibrous structure comprises at least one of glass fibers, carbon fibers, polyethylene terephthalate fibers, basalt fibers, or aramid fibers. For example, the fiber structure of the FRP reinforcement layer 40 is made of glass fiber, which is inexpensive and can reduce the cost of the FRP reinforcement layer 40, thereby reducing the manufacturing cost of the bamboo anchor rod assembly 100. The carbon fiber can also be used as the fiber structure of the FRP reinforcement layer 40, so that the mechanical property of the FRP reinforcement layer 40 can be greatly improved, and thus the structural strength of the bamboo anchor rod 10 can be improved, and the bearing capacity of the bamboo anchor rod 10 can be improved. The fiber structure of the FRP reinforcement layer 40 is also composed of a plurality of fibers, which fully exerts the advantages of the plurality of fibers, so that the FRP reinforcement layer 40 has better structural strength, thereby improving the bearing capacity of the bamboo anchor rod assembly 100 and reducing the manufacturing cost of the FRP reinforcement layer 40.

Referring to fig. 1-15, according to some embodiments of the present invention, a bamboo anchor 10 includes: the steel wire rope comprises a rod body 11 and an anchor head 12, wherein the anchor head 12 is arranged on at least one side of the rod body 11 in the length direction, the anchor head 12 is approximately annular, and an FRP reinforcing layer 40 is arranged on at least one of the rod body 11 and the anchor head 12. For example, when the bamboo anchor 10 is used for slope protection, the rod body 11 of the bamboo anchor 10 may be inserted into the ground or rock layer, such that the side of the bamboo anchor 10 provided with the anchor head 12 may be exposed and form a free end, and the anchor head 12 is substantially annular, thereby facilitating the connection of the bamboo anchor 10 with other components for slope protection. The bamboo anchor rod 10 can also insert the end with the anchor head 12 into the ground or rock layer to enhance the anchoring force of the bamboo anchor rod 10 in slope protection.

Referring to fig. 1-15, in accordance with some embodiments of the present invention, an FRP reinforcement layer 40 is provided on one or at least one of the inside surface 15, the outside surface 14, and the interlayer 13 of the bamboo anchor 10. For example, when the FRP reinforcement layer 40 is disposed on the outer surface 14 of the bamboo anchor rod 10, carbon marks and defects on the outer surface 14 of the bamboo anchor rod 10 can be covered, the artistic aesthetic feeling of the bamboo anchor rod 10 can be enhanced, and the aesthetic feeling of the bamboo anchor rod 10 can be improved; the FRP reinforcement layer 40 can prevent the connection section 122 of the bamboo anchor rod 10 and FRP from being corroded by external media to affect the use effect of the bamboo anchor rod 10, and prolong the service life of the bamboo anchor rod 10. The FRP reinforcement layer 40 can also improve the structural strength of the connection section 122 where the bamboo anchor rod 10 is connected to the FRP reinforcement layer 40, improve the tensile strength of the bamboo anchor rod 10, and improve the bearing capacity of the bamboo anchor rod 10. Meanwhile, as the reinforcing layer is only arranged on the outer side surface 14 of the bamboo anchor rod 10, the material of the FRP reinforcing layer 40 can be saved, and the cost for manufacturing the bamboo anchor rod component 100 is reduced.

When the FRP reinforcement layer 40 is arranged on the inner side surface 15 of the bamboo anchor rod 10, the FRP reinforcement layer 40 can be hidden, so that the tensile strength of the bamboo anchor rod 10 is improved, the bearing capacity of the bamboo anchor rod assembly 100 is improved, meanwhile, the attractiveness of the bamboo anchor rod assembly 100 is improved, and the manufacturing cost of the bamboo anchor rod assembly 100 is reduced. In which the bamboo anchor rod 10 may define a sandwich layer 13 between each two-layered structure, and the frp reinforcement layer 40 may be disposed in the sandwich layer 13. Can improve the structural strength of bamboo stock 10 like this, improve the tensile strength of bamboo stock 10, improve the bearing capacity of bamboo stock subassembly 100, improve bamboo stock subassembly 100's aesthetic property simultaneously, reduce the cost of manufacture of bamboo stock subassembly 100.

The FRP reinforcement layers 40 may be disposed on the inner surface 15, the outer surface 14 and the interlayer 13 of the bamboo anchor rod 10, and the FRP reinforcement layers 40 may completely cover all surfaces of the bamboo anchor rod 10, so as to cover carbon marks and defects on the surface of the bamboo anchor rod 10, enhance the artistic beauty of the bamboo anchor rod 10, and improve the aesthetic property of the bamboo anchor rod 10. The FRP reinforcement layer 40 can prevent the bamboo anchor rod 10 from contacting with the outside in all directions, prevent the bamboo anchor rod 10 from being corroded by the outside medium to influence the using effect of the bamboo anchor rod 10, and prolong the service life of the bamboo anchor rod 10. Meanwhile, the FRP reinforcement layer 40 may also improve the structural strength of the entire bamboo anchor rod 10, and improve the bearing capacity of the bamboo anchor rod 10.

Referring to fig. 1-15, according to some embodiments of the present invention, the anchor head 12 includes a curved section 121 and two connecting sections 122 extending along a straight line, one end of each of the two connecting sections 122 is connected to both circumferential ends of the curved section 121, the other end of each of the two connecting sections 122 is connected to the rod body 11, and the curvature radius of the curved section 121 is 3-25cm. For example, the radius of the curved section 121 may be 5cm, 10cm, 15cm, 20cm. The bamboo anchor rod assembly 100 can be used in slope protection, the bamboo anchor rod assembly 100 can be connected with other slope protection components through ropes, and the radius of curvature of 3-25cm can enable the ropes to pass through the anchor head 12. The bamboo anchor rod 10 is convenient for constructors to connect the bamboo anchor rod with other components by arranging the anchor head 12.

It should be explained that, when the bamboo anchor rod 10 is a single-layer structure, the curvature radius of the curved section 121 refers to the curvature radius of the curved surface inside the anchor head 12; when the bamboo anchor rod 10 has a multi-layer structure, the curvature radius of the curved section 121 refers to the curvature radius of the innermost curved surface of the anchor head 12.

Referring to fig. 1-15, according to some embodiments of the present invention, the anchor head 12 includes a curved section 121 and two connecting sections 122 extending along a straight line, the two connecting sections 122 are connected to one end of the two connecting sections 122 respectively at two circumferential ends of the curved section 121, the rod body 11 includes two rod sections extending along a straight line which are stacked, and the other ends of the two connecting sections are connected to the two rod sections respectively. The structural strength of the rod body 11 can be improved by arranging the two rod sections, and the bearing capacity of the bamboo anchor rod 10 is improved. And an interlayer 13 is arranged between the two rod sections of the bamboo anchor rod 10, so that the bamboo anchor rod 10 is convenient to manufacture.

A bamboo anchor rod assembly 100 reinforced with FRP according to various embodiments of the present invention will be described with reference to fig. 1 to 15.

The first embodiment is as follows:

referring to fig. 1, in the present embodiment, a bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 has a single-layered structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft 11 is a strip extending along a straight line, and the shaft 11 may include a first shaft 221 and a second shaft 222 disposed opposite to each other, and the first shaft 221 and the second shaft 222 abut against each other. The anchor head 12 comprises an arc-shaped bending section 121 and two connecting sections 122 extending along a straight line, one end of each connecting section 122 is connected to the two circumferential ends of the bending section 121, the other end of each connecting section 122 is connected to the rod body 11, and the curvature radius of the bending section 121 is 3-25cm.

The surface of the bamboo anchor rod 10 includes an outer side surface 14 and an inner side surface 15, the outer side surface 14 being the surface of the main anchor rod 10 exposed to the outside, and the inner side surface 15 being the surface of the anchor head 12 inside.

The bamboo anchor 10 may be made of bamboo strands that are joined end to end and have two pairs of opposing bamboo strand segments. Wherein, a pair of relative bamboo strip section can butt setting in order to form body of rod 11 of bamboo stock 10, and the anchor head 12 that links to each other with body of rod 11 is formed respectively at body of rod 11 both ends to another pair of relative bamboo strip section.

The FRP reinforcement layer 40 includes a matrix and a fiber structure disposed on the matrix, the matrix is a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin, or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber, or aramid fiber.

Referring to fig. 1, the FRP reinforcement layer 40 is formed as an FRP wire 41, the FRP wire 41 is wound around the two anchor heads 12 on the bamboo anchor rod 10, and the FRP wire 41 is wound one layer around each of the anchor heads 12 in a first direction (refer to a front-rear direction in the drawing). The FRP wire 41 may connect the lateral surface 14 and the medial surface 15 corresponding to the anchor head 12 by an adhesive layer. For example, the adhesive layer may be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

The second embodiment:

referring to fig. 2, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. Bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 and main stock 2 butt just inject intermediate layer 13 between vice stock head 31 and the main stock head 21.

The main anchor rod 2 may include a main rod body 22 and a main anchor head 21, the main rod body 22 includes a first rod body 221 and a second rod body 222 which are opposite to each other and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31, the secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 which are opposite and abutted to each other, and the secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed at the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22, the auxiliary anchor head 31 is disposed at the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are overlapped inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are overlapped inside and outside. Third rod 321 is opposite to first rod 221, fourth rod 322 is opposite to second rod 222, and main anchor head 21 is opposite to auxiliary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The surface of the bamboo anchor rod 10 includes an outer side surface 14 and an inner side surface 15, the outer side surface 14 includes a surface of the main anchor rod 2 exposed to the outside and surfaces of the auxiliary anchor rod 3 on both front and rear sides, and the inner side surface 15 is a surface inside the auxiliary anchor head 31.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of the opposing bamboo sections may be spaced to form the first shaft 221 and the second shaft 222 of the main shaft 12, and the other pair of the opposing bamboo sections forms the main anchor 21 connected to the main shaft 12 at both ends of the main shaft 12. The secondary anchor rods 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments can be abutted to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposite bamboo strip segments respectively form the secondary anchor heads 31 connected with the secondary rod 32 at two ends of the secondary rod 32. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

The FRP reinforcement layer 40 includes a matrix and a fiber structure disposed on the matrix, where the matrix is a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin, or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber, or aramid fiber.

Referring to fig. 2, the FRP reinforcement layer 40 is formed as an FRP wire 41, the FRP wire 41 is wound around two main anchor heads 21 and two sub anchor heads 31 on the bamboo anchor rod 10, the FRP wire 41 is wound one layer on a surface of each of the main anchor heads 21 and the sub anchor heads 31 in a first direction (refer to a front-rear direction in the drawing), and the FRP wire 41 is partially disposed in the interlayer 13. The FRP wires 41 may be connected to the respective lateral and

medial surfaces

14, 15 of the anchor head 12 and the interlayer face of the interlayer 13 by an adhesive layer. For example, the adhesive layer may be a contact layer where the matrix of the FRP wire 41 is in contact with the anchor head 12, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

Example three:

referring to fig. 3, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. Bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and

vice stock

3 and 2 butts of main stock, and do not have intermediate layer 13 between vice stock 3 and the main stock 2.

The main anchor rod 2 may include a main rod 22 and a main anchor head 21, the main rod 22 includes a first rod 221 and a second rod 222 which are opposite and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31, the secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 which are opposite and abutted to each other, and the secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 together with the main rod body 22, the auxiliary anchor head 31 is disposed on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 together with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are stacked inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are stacked inside and outside. The third rod 321 is opposite to the first rod 221, the fourth rod 322 is opposite to the second rod 222, and the primary anchor head 21 is opposite to the secondary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor 21 connected to the main rod 12 at two ends of the main rod 12. The secondary anchor 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments may be abutted to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposite bamboo strip segments forms the secondary anchor 31 connected to the secondary rod 32 at two ends of the secondary rod 32. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

Referring to fig. 3, the FRP reinforcement layer 40 is formed as an FRP wire 41, the FRP wire 41 is wound around the two anchor heads 12 of the bamboo anchor rod 10, and the FRP wire 41 is wound around the main anchor head 21 and the sub anchor head 31 as a whole in a first direction (referring to the front-rear direction in the drawing) on the surfaces thereof. The FRP wires 41 may be connected to the respective lateral 14 and medial 15 surfaces of the anchor head 12 by adhesive layers. For example, the adhesive layer may be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502-size glue, a hot melt glue, or a glass glue.

Example four:

referring to fig. 4, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 has a single-layered structure. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft 11 is a strip extending along a straight line, and the shaft 11 may include a first shaft 221 and a second shaft 222, and the first shaft 221 abuts against the second shaft 222. The anchor head 12 comprises an arc-shaped bending section 121 and two connecting sections 122 extending along a straight line, one end of each connecting section 122 is connected to the two circumferential ends of the bending section 121, the other end of each connecting section 122 is connected to the rod body 11, and the curvature radius of the bending section 121 is 3-25cm.

The bamboo anchor 10 may be made of bamboo strands that are joined end to end and have two pairs of opposing bamboo strand segments. One pair of the opposite bamboo strip segments can be abutted to form a rod body 11 of the bamboo anchor rod 10, and the other pair of the opposite bamboo strip segments respectively form anchor heads 12 connected with the rod body 11 at two ends of the rod body 11.

Referring to fig. 4 and 5, the FRP reinforcement layer 40 is formed as FRP wires 41, the FRP wires 41 are wound on two anchor heads 12 on the bamboo anchor rod 10, the FRP wires 41 are wound on two layers on each of the anchor heads 12, and a certain angle exists between the FRP wires 41 of the first layer and the FRP wires 41 of the second layer. The FRP wires 41 may be connected to the respective lateral 14 and medial 15 surfaces of the anchor head 12 by adhesive layers. For example, the adhesive layer may be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502-size glue, a hot melt glue, or a glass glue.

Example five:

referring to fig. 6, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. Bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative with main stock 2 and the interval sets up and prescribes a limit to intermediate layer 13.

The main anchor rod 2 may include a main rod 22 and a main anchor head 21, the main rod 22 includes a first rod 221 and a second rod 222 which are opposite and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31, the secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 which are opposite and abutted to each other, and the secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed at the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22, the auxiliary anchor head 31 is disposed at the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are overlapped inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are overlapped inside and outside. Third rod 321 is opposite to first rod 221, fourth rod 322 is opposite to second rod 222, and main anchor head 21 is opposite to auxiliary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor head 21 connected to the main rod 12 at both ends of the main rod 12, respectively. The secondary anchor 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments may be abutted to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposite bamboo strip segments forms the secondary anchor 31 connected to the secondary rod 32 at two ends of the secondary rod 32. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

The FRP reinforcement layer 40 includes a matrix and a fiber structure disposed on the matrix, the matrix is a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin, or bio-based resin. The fiber structure comprises at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

Referring to fig. 6, the frp reinforcement layer 40 is formed as two fiber sheets 43, and the two fiber sheets 43 are respectively disposed in the interlayer 13 between the main anchor head 21 and the auxiliary anchor head 31. The fibre plate 43 may be attached to the corresponding sandwich face of the anchor head 12 by an adhesive layer. For example, the bonding layer may be an adhesive, which may include at least one of an epoxy glue, a 502-bar glue, a hot melt glue, or a glass glue.

Example six:

referring to fig. 7, in the present invention, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 has a single-layered structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft 11 is a strip extending along a straight line, and the shaft 11 may include a first shaft 221 and a second shaft 222, and the first shaft 221 abuts against the second shaft 222. The anchor head 12 comprises an arc-shaped bending section 121 and two connecting sections 122 extending along a straight line, one end of each connecting section 122 is connected to the two circumferential ends of the bending section 121, the other end of each connecting section 122 is connected to the rod body 11, and the curvature radius of the bending section 121 is 3-25cm.

The bamboo anchor rod 10 may be made of bamboo strips connected end to end and having two pairs of opposite bamboo strip segments. One pair of the opposite bamboo strip segments may be abutted to form the rod body 11 of the bamboo anchor rod 10, and the other pair of the opposite bamboo strip segments respectively form anchor heads 12 connected with the rod body 11 at two ends of the rod body 11.

Referring to fig. 7, the frp reinforcement layer 40 is formed as cloth-shaped unidirectional fiber cloth, which is disposed on the rod body 11 of the bamboo anchor rod 10, and the unidirectional fiber cloth may wrap the first rod body 221 and the second rod body 222 as a whole on the surface of the whole. The unidirectional fiber cloth may be wrapped on the corresponding outer side surface 14 of the rod body 11 by an adhesive layer. For example, the adhesive layer may be a contact layer between the FRP reinforcing layer 40 and the anchor head 12, or the adhesive layer may be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

Example seven:

referring to fig. 8, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved bending section 121 and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in the circumference both ends of bending section 121, and the other end of two linkage segments 122 is connected in the body of rod 11. Bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and

vice stock

The main anchor rod 2 may include a main rod 22 and a main anchor head 21, the main rod 22 includes a first rod 221 and a second rod 222 which are opposite and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod 32 and a secondary head 31, the secondary rod 32 includes a third rod 321 and a fourth rod 322 which are opposite and abutted to each other, and the secondary head 31 includes a secondary bending section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed at the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22, the auxiliary anchor head 31 is disposed at the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are overlapped inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are overlapped inside and outside. Third rod 321 is opposite to first rod 221, fourth rod 322 is opposite to second rod 222, and main anchor head 21 is opposite to auxiliary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The main anchor 2 may be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor 21 connected to the main rod 12 at both ends of the main rod 12. The secondary anchor 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. Wherein a pair of opposing bamboo cane segments may be disposed in abutting relationship to form a third rod 321 and a fourth rod 322 of the secondary rod 32, the other pair of the opposite bamboo strip segments forms the sub-anchor heads 31 connected to the sub-rod body 32 at both ends of the sub-rod body 32, respectively. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

Referring to fig. 8, the frp reinforcement layer 40 is formed as cloth-shaped unidirectional fiber cloth, unidirectional fibers 421 are applied to the rod body 11 of the bamboo anchor rod 10, and the unidirectional fiber cloth may wrap the primary rod body 22 and the secondary rod body 32 as a whole on the surface of the whole. The unidirectional fiber cloth may be wrapped around the outside surface 14 of the rod body 11 by an adhesive layer. For example, the adhesive layer may be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

Example eight:

referring to fig. 9, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 has a single-layered structure. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft 11 is a strip extending along a straight line, and the shaft 11 may include a first shaft 221 and a second shaft 222 disposed opposite to each other, and the first shaft 221 and the second shaft 222 abut against each other. The anchor head 12 comprises an arc-shaped bending section 121 and two connecting sections 122 extending along a straight line, one end of each of the two connecting sections 122 is connected to the two circumferential ends of the bending section 121, the other end of each of the two connecting sections 122 is connected to the rod body 11, and the curvature radius of the bending section 121 is 3-25cm.

The bamboo anchor 10 may be made of bamboo strands that are joined end to end and have two pairs of opposing bamboo strand segments. One pair of the opposite bamboo strip segments may be abutted to form the rod body 11 of the bamboo anchor rod 10, and the other pair of the opposite bamboo strip segments respectively form anchor heads 12 connected with the rod body 11 at two ends of the rod body 11.

The FRP reinforcement layer 40 includes a matrix and a fiber structure disposed on the matrix, where the matrix is a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin, or bio-based resin. The fiber structure comprises at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

Referring to fig. 9, the frp reinforcement layer 40 is formed as cloth-shaped bidirectional fiber cloth, and bidirectional fibers 422 are provided on the rod body 11 of the bamboo anchor rod 10, and the bidirectional fiber cloth may wrap the primary rod body 22 and the secondary rod body 32 as a whole on the surface of the whole. The bi-directional fiber cloth may be wrapped around the outside surface 15 of the rod body 11 by an adhesive layer. For example, the adhesive layer may be a contact layer where the substrate of the FRP reinforcing layer 40 contacts the rod body 11, or may be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

Example nine:

referring to fig. 10, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 has a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft 11 is a long bar extending along a straight line, and the shaft 11 may include a first shaft 221 and a second shaft 222 opposite to each other at a left-right interval, and an interlayer 13 is defined between the first shaft 221 and the second shaft 222. The anchor head 12 comprises an arc-shaped bending section 121 and two connecting sections 122 extending along a straight line, one end of each connecting section 122 is connected to the two circumferential ends of the bending section 121, the other end of each connecting section 122 is connected to the rod body 11, and the curvature radius of the bending section 121 is 3-25cm.

The bamboo anchor 10 may be made of bamboo strips connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments may be spaced to form the rod body 11 of the bamboo anchor rod 10, and the other pair of the opposite bamboo strip segments respectively form the anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

Referring to fig. 10, the frp reinforcement layer 40 is formed as a fiber sheet 43, and the fiber sheet 43 is interposed between a first rod 221 and a second rod 222 of the bamboo anchor 10. The fibre sheet 43 may be connected to the sandwich face on both sides of the sandwich 13 by means of an adhesive layer. For example, the bonding layer may be an adhesive, which may include at least one of an epoxy glue, a 502-bar glue, a hot melt glue, or a glass glue.

Example ten:

referring to fig. 11, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor rod 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved bending section 121 and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in the circumference both ends of bending section 121, and the other end of two linkage segments 122 is connected in the body of rod 11. The bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative and the interval sets up and inject intermediate layer 13 with main stock 2.

The main anchor rod 2 may include a main rod body 22 and a main anchor head 21, the main rod body 22 includes a first rod body 221 and a second rod body 222 which are opposite to each other and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31, the secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 which are opposite and abutted to each other, and the secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 together with the main rod body 22, the auxiliary anchor head 31 is disposed on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 together with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are stacked inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are stacked inside and outside. Third rod 321 is opposite to first rod 221, fourth rod 322 is opposite to second rod 222, and main anchor head 21 is opposite to auxiliary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of opposing bamboo strip segments forms the main anchor 21 connected to the main rod 12 at the main rod 12. The secondary anchor rods 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments can be abutted to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposite bamboo strip segments respectively form the secondary anchor heads 31 connected with the secondary rod 32 at two ends of the secondary rod 32. Wherein, the length of the bamboo strips for manufacturing the main anchor rods 2 is larger than that of the bamboo strips for manufacturing the auxiliary anchor rods 3.

Referring to fig. 11, the FRP reinforcement layer 40 is formed as two fiberboards 43, one fiberboard 43 is disposed in the interlayer 13 between the first rod 221 and the third rod 321, and the other fiberboard 43 is disposed in the interlayer 13 between the second rod 222 and the fourth rod 322. The fibre board 43 may be connected to the sandwich face on both sides of the sandwich 13 by means of an adhesive layer. For example, the adhesive layer may be an adhesive, which may include at least one of an epoxy glue, a 502 strong glue, a hot melt glue, or a glass glue.

Example eleven:

referring to fig. 12, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft body 11 has a substantially linear elongated shape. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. The bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative and the interval sets up and inject intermediate layer 13 with main stock 2.

The main anchor rod 2 may include a main rod body 22 and a main anchor head 21, the main rod body 22 includes a first rod body 221 and a second rod body 222 which are opposite to each other and spaced from each other, and the main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod 32 and a secondary head 31, the secondary rod 32 includes a third rod 321 and a fourth rod 322 which are opposite and spaced from each other, and an interlayer 13 is defined between the third rod 321 and the second rod 322. The secondary anchor head 31 includes a secondary curved section 311 and a secondary connecting section 312. The auxiliary rod body 32 is disposed at the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22, the auxiliary anchor head 31 is disposed at the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21, the bending section 121 includes a main bending section 211 and an auxiliary bending section 311 which are overlapped inside and outside, and the connecting section 122 includes a main connecting section 212 and an auxiliary connecting section 312 which are overlapped inside and outside. Third rod 321 is opposite to first rod 221, fourth rod 322 is opposite to second rod 222, and main anchor head 21 is opposite to auxiliary anchor head 31. Wherein the curvature radius of the secondary curved section 311 is 3-25cm.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor head 21 connected to the main rod 12 at both ends of the main rod 12, respectively. The secondary anchor 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. Wherein, one pair of the opposing bamboo strip segments may be spaced to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposing bamboo strip segments forms the secondary anchor 31 connected to the secondary rod 32 at both ends of the secondary rod 32, respectively. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

Referring to fig. 12, the frp reinforcement layer 40 is formed into three fiberboards 43, one fiberboard 43 is disposed in the interlayer 13 between the first rod 221 and the third rod 321, another fiberboard 43 is disposed in the interlayer 13 between the second rod 222 and the fourth rod 322, and the third fiberboard 43 is disposed in the interlayer 13 between the third rod 321 and the fourth rod 322. The fibre sheet 43 may be connected to the sandwich face on both sides of the sandwich 13 by means of an adhesive layer. For example, the bonding layer may be an adhesive, which may include at least one of an epoxy glue, a 502-bar glue, a hot melt glue, or a glass glue.

Example twelve:

referring to fig. 13, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is substantially elongated in a straight line. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. Bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative with main stock 2 and the interval sets up and prescribes a limit to intermediate layer 13.

The main anchor 2 may be made from one bamboo strip connected end to end and having two pairs of opposed bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor 21 connected to the main rod 12 at both ends of the main rod 12. The secondary anchor 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposite bamboo strip segments may be abutted to form the third rod 321 and the fourth rod 322 of the secondary rod 32, and the other pair of the opposite bamboo strip segments forms the secondary anchor 31 connected to the secondary rod 32 at two ends of the secondary rod 32. Wherein, the length of the bamboo strip for manufacturing the main anchor rod 2 is larger than that of the bamboo strip for manufacturing the auxiliary anchor rod 3.

Referring to fig. 13, the frp reinforcement layer 40 is formed as a ring-shaped fiberboard 43, and the ring-shaped fiberboard 43 is disposed in the interlayer 13 defined between the main anchor 2 and the sub-anchor 3. The annular fibre plate 43 can be connected to the secondary anchor 3 and the primary anchor 2 by means of an adhesive layer. For example, the bonding layer may be an adhesive, which may include at least one of an epoxy glue, a 502-bar glue, a hot melt glue, or a glass glue.

Examples of the embodiments thirteen:

referring to fig. 14, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft body 11 has a substantially linear elongated shape. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. The bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative and the interval sets up and inject intermediate layer 13 with main stock 2.

Referring to fig. 14, the frp reinforcement layer 40 is formed as two fiber sheets 43 and two unidirectional fiber cloths. One of the fiber plates 43 is arranged in the interlayer 13 between the first rod 221 and the third rod 321, and the other fiber plate 43 is arranged in the interlayer 13 between the second rod 222 and the fourth rod 322; two pieces of unidirectional fiber cloth are respectively arranged on the interlayer surface of the two auxiliary anchor heads 31. The unidirectional fiber cloth can be connected with the interlayer surface of the auxiliary anchor head 31 through an adhesive layer, and the fiber plate 43 can be connected with the corresponding interlayer surface of the rod body 11 through the adhesive layer. For example, the adhesive layer may be a contact layer between the FRP reinforcing layer 40 and the anchor head 12, or may be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502-size glue, a hot melt glue, or a glass glue.

Example fourteen:

referring to fig. 15, in the present embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The shaft body 11 has a substantially linear elongated shape. The anchor head 12 includes curved section 121 that is curved and the linkage segment 122 that extends along the straight line, and linkage segment 122 is two, and the one end of two linkage segments 122 is connected respectively in curved section 121's circumference both ends, and the other end of two linkage segments 122 is connected in the body of rod 11. The bamboo stock 10 is two-layer structure, and bamboo stock 10 includes main stock 2 and vice stock 3 promptly, and the inside of main stock 2 is located to vice stock 3, and vice stock 3 is relative and the interval sets up and inject intermediate layer 13 with bamboo stock 10.

The main anchor 2 may be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. One pair of the opposing bamboo strip segments may be spaced to form the first rod 221 and the second rod 222 of the main rod 12, and the other pair of the opposing bamboo strip segments forms the main anchor head 21 connected to the main rod 12 at both ends of the main rod 12, respectively. The secondary anchor rods 3 may also be made of one bamboo strip connected end to end and having two pairs of opposing bamboo strip sections. Wherein, one pair of the opposite bamboo strip sections can be abutted to form the third rod body 321 and the fourth rod body 322 of the auxiliary rod body 32, and the other pair of the opposite bamboo strip sections respectively form the auxiliary anchor heads 31 connected with the auxiliary rod body 32 at the two ends of the auxiliary rod body 32. Wherein, the length of the bamboo strips for manufacturing the main anchor rods 2 is larger than that of the bamboo strips for manufacturing the auxiliary anchor rods 3.

Referring to fig. 15, the frp reinforced layer 40 is formed as two fiber sheets 43 and two unidirectional fiber cloths. One of the fiber plates 43 is disposed in the interlayer 13 between the first rod 221 and the third rod 321, and the other fiber plate 43 is disposed in the interlayer 13 between the second rod 222 and the fourth rod 322; two pieces of unidirectional fiber cloth are respectively arranged on the outer side surface 14 and the inner side surface 15 corresponding to the two anchor heads 12, and the unidirectional fiber cloth can wrap the main anchor head 21 and the auxiliary anchor head 31 on the surface of the whole as a whole. The unidirectional fiber cloth may be attached to the corresponding outer side surface 14 and inner side surface 15 of the anchor head 12 by an adhesive layer, and the fiber sheet 43 may be attached to the sandwich face on both sides of the sandwich 13 by an adhesive layer. For example, the adhesive layer may be a contact layer between the matrix of the FRP reinforcement layer 40 and the bamboo anchor 10, and the adhesive layer may also be an adhesive. When the bonding layer is an adhesive, the adhesive may include at least one of an epoxy glue, a 502-size glue, a hot melt glue, or a glass glue.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an adopt bamboo stock subassembly of FRP reinforcing which characterized in that includes:

a bamboo anchor rod;

the FRP reinforcing layer comprises a base body and a fiber structure arranged on the base body, the FRP reinforcing layer is arranged on the bamboo anchor rod, and the FRP reinforcing layer is connected to the bamboo anchor rod through an adhesive layer.

2. The FRP-reinforced bamboo anchor rod assembly of claim 1, wherein the FRP-reinforcing layer has a form including at least one of a filament, a plate and a cloth.

3. The FRP-reinforced bamboo anchor rod assembly of claim 2, wherein when the FRP reinforcement layer includes a cloth shape, the portion of the FRP reinforcement layer formed in the cloth shape is a fiber cloth, the fiber structure includes a plurality of fiber filaments, the fiber cloth includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber filaments of the unidirectional fiber cloth are arranged in parallel with each other, and at least a portion of the fiber filaments of the multidirectional fiber cloth have an included angle therebetween.

4. The FRP-reinforced bamboo anchor assembly of claim 2, wherein when the form of the FRP reinforcement layer comprises a filament, the portion of the FRP reinforcement layer formed into the filament is formed into an FRP wire, the FRP wire is wound around the bamboo anchor, and the winding of the FRP wire comprises at least one of a single-layer unidirectional winding, a multi-layer unidirectional winding, and a multi-layer bidirectional winding.

5. The FRP-reinforced bamboo anchor rod assembly of claim 2, wherein when the FRP reinforcement layer includes a plate shape, a portion of the FRP reinforcement layer formed in the plate shape is formed in a fiberboard, and the fiberboard is at least one of sandwiched in the bamboo anchor rod or provided outside the bamboo anchor rod.

6. The FRP reinforced bamboo anchor rod assembly of claim 1, wherein the matrix is a resin matrix comprising one of epoxy, vinyl, polyurethane, or bio-based resin; and/or the fiber structure comprises at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber and aramid fiber.

7. A bamboo anchor rod assembly reinforced with FRP as claimed in any one of claims 1 to 6 wherein the bamboo anchor rod comprises: the reinforced plastic steel bar comprises a bar body and an anchor head, wherein the anchor head is arranged on at least one side of the bar body in the length direction, the anchor head is approximately annular, and the FRP reinforcing layer is arranged on at least one of the bar body and the anchor head.

8. The FRP-reinforced bamboo anchor rod assembly as claimed in claim 7, wherein the anchor head comprises two curved sections and two connecting sections extending along a straight line, one end of each of the two connecting sections is connected to the two circumferential ends of the curved section, the other end of each of the two connecting sections is connected to the rod body, and the curvature radius of the curved section is 3-25cm.

9. The FRP-reinforced bamboo anchor rod assembly as claimed in claim 7, wherein the anchor head comprises two curved sections and two connecting sections extending along a straight line, one end of each of the two connecting sections is connected to the two curved sections, the rod body comprises two rod sections extending along a straight line, and the other end of each of the two connecting sections is connected to the two rod sections.

10. A bamboo anchor rod assembly reinforced with FRP according to any one of claims 1 to 6, wherein the FRP reinforcement layer is provided on one or at least one of the inside surface, outside surface and interlayer of the bamboo anchor rod.