CN217974399U - Fiber main rib rod for anchor rod or pile foundation - Google Patents

Abstract

The utility model provides an stock or pile foundation are with fibre owner muscle pole, includes fibre pole body and sets up and be equipped with the screw thread or fibre pole leads to long being equipped with the screw thread in the at least one end of fibre pole, and a plurality of positions in the central authorities of fibre pole are equipped with the protrusion of fibre back lining, fibre pole body is with the sticky body of the pole that condenses into of fibre resin impregnation. The fiber lining is better protruded into a circular plate shape; the protrusion of the fiber lining is integrated with the fiber main rod.

Description

Fiber main rib rod for anchor rod or pile foundation

Technical Field

The utility model relates to a stock or pile foundation are with fibre owner muscle pole for fixed or variable diameter (hereinafter called reducing or enlarged) fibre cage and stock or pile foundation are used, especially the main skeleton-the owner muscle in stock or pile foundation.

Background

The defect that the tensile capacity of a rock-soil body is far lower than the compressive capacity is overcome through the longitudinal tension action of the anchor rod body. The cohesive force and the tensile resistance of the surrounding rock body are improved. The anchor rod is positioned in the rock-soil body and forms a new complex with the rock-soil body. The anchor rod in the complex is the key to solve the problem of low tensile capacity of the surrounding rock mass. Thereby greatly strengthening the rock-soil body. The reinforcement cage used in the building engineering industry is an important concrete framework, the purpose of the cage made of fiber materials is to completely or partially replace the reinforcement cage in the building engineering industry, particularly the concrete framework which needs stronger tensile resistance (more than 2 times of the reinforcement), and the anchor rod or pile foundation prepared by using the variable-diameter fiber cage is the best choice. The anchor rod must have several elements: one end of the rod body can be in close contact with the rock-soil mass to form friction (or bonding) resistance; the other end of the anchor rod body, which is positioned outside the rock-soil body, can form radial resistance to the rock-soil body; the anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the function of the free section is to apply the tension to the anchor rod; the anchoring section is an area where the prestressed tendon and the soil layer are bonded by cement paste or concrete anchoring bodies, and has the functions of increasing the bonding friction effect of the anchoring body and the soil layer, increasing the bearing or tensile effect of the anchoring body and transmitting the tensile force of the free section to the deep part of the soil body.

The anchor rod is the most basic component of the support in the modern underground mining mine, and the surrounding rocks of the roadway are bound together to support the surrounding rocks; the anchor rod is not only used in mines, but also used in the building engineering technology to actively reinforce basements, tunnels, dam bodies and the like.

The basic model of the anchor rod is as follows: steel bar or wire rope mortar anchor rods are prepared into anchor rods or pile foundations by using variable-diameter fiber cages. For example, the CN202110334347X anchor rod or variable diameter fiber cage for pile foundation comprises an axial rod, 2 or more than 2 circular rings or ring plates sleeved on the axial rod, 2 groups or more than 2 groups of ribs corresponding to the number of the circular rings, at least one circular ring or ring plate is fixed or limited, other circular rings or ring plates can freely slide on the axial rod, and the circular rings or ring plates are uniformly distributed on the axial rod; or one circular ring or ring plate is fixed, other circular rings or ring plates can slide on the axial rod, when the circular rings or ring plates are uniformly distributed on the two circular rings or ring plates on the axial rod, the first ends of the first group of ribs are movably connected with the first circular ring or ring plate, and the first ends of the second group of ribs are movably connected with the second circular ring or ring plate; fiber framework pieces are uniformly studded on the ribs or/and the vertical ribs; the variable-diameter fiber cage can be folded, extended and contracted.

For another example, CN2021206318530 is a balloon type variable diameter fiber cage and anchor rod or pile foundation thereof, which includes a balloon and a balloon core in the balloon, the balloon core is a fiber cage made of fiber framework pieces as a concrete framework piece, and the fiber framework pieces are uniformly fixed in the balloon; the fixing mode comprises tying, sewing, decorating, clamping and riveting; fiber cage core prepared from fiber skeleton piece: the fiber cage bag core comprises 2 or more than 2 rings or ring plates sleeved on the axial rod, at least one ring or ring plate is fixed, other rings or ring plates can slide on the axial rod, and the rings or ring plates are uniformly distributed on the axial rod; the fiber framework pieces are respectively connected between the sliding ring and the fixed ring; the fiber framework comprises fiber ribs, fiber nets, fiber sheets, fiber cloth, stirrups and spiral ribs. The anchor rod comprises a bag type variable-diameter fiber cage, an anchor rod member, a fixing structure at the upper end of the anchor rod member and a steel bar connector.

The commonly used expanded anchor rod technology in the market at present comprises plain slurry, capsule type expanded anchor rod technology and the like. In the aspect of cost construction, the reaming technology of the variable-diameter large-head anchor rod or the pile foundation is based, the large head and the small head are formed by grouting or concrete injection, but the anchor rod or the pile foundation with enough friction force and tension or resistance transmission cannot be formed without reaching the corresponding steel reinforcement framework, and particularly the anchoring force of the anchor rod is limited. The anchoring force is not enough when the anchor is used in the technical fields of building basement anti-floating foundation pit support, side slope support, reinforcement and the like. Because they require a high pullout resistance and are stable and reliable.

The fiber cage is used for completely or partially replacing a reinforcement cage in the building industry, is mainly used in the technical fields of building basement anti-floating foundation pit support, side slope support, geological disaster treatment, reinforcement and the like, and is also used for pressure-resistant pile foundations. The utility model provides a resistance to plucking power/compressive resistance is great, the diameter-variable fiber cage skeleton in the reliable stock of stable performance or pile foundation.

The steel reinforcement cage structure is the unfavorable tensile strength who absorbs anchor rod owner steel bar pole in the atress with the parallel structure of the vertical muscle of a plurality of and main steel bar pole, and generally speaking, the main steel bar pole of anchor rod transmits the steel reinforcement cage and the concrete that condenses with it, needs to design an expansion head steel reinforcement cage that has better stress strength with low costs, stress structure is more reasonable, the steel reinforcement cage at perpendicular to main fibre pole or main reinforcing bar.

The steel reinforcement cage system is prepared by steel reinforcements, the surface corrosion resistance treatment is required, the quality is large, and although the main reinforcements of the steel reinforcement cage can adopt finish rolled steel reinforcements, the diameter has various specifications, such as the commonly used diameter of 32-52mm, but the tensile strength still needs to be improved. The use of fibrous cages with higher tensile strength and lighter weight is of great interest, especially in special applications.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stock or pile foundation are with fibre owner muscle pole-have more and have tensile strength, can be used to the main muscle of enlarged footing steel reinforcement cage or fibre cage, and the quality is light, and the preparation and the construction in some places are more convenient, not only are used for fixed diameter cage to be available, can cooperate enlarged footing steel reinforcement cage or fibre cage moreover, can bear or the dynamics that requires is bigger, obtains stock or pile foundation that cost performance is more excellent.

The technical scheme of the utility model is that: the utility model provides an stock or pile foundation are with fibre owner muscle pole, includes fibre pole body and sets up and be equipped with the screw thread or fibre pole leads to long being equipped with the screw thread in the at least one end of fibre pole, and a plurality of positions in the central authorities of fibre pole are equipped with the protrusion of fibre back lining, fibre pole body is with the sticky body of the pole that condenses into of fibre resin impregnation. The fiber lining is better protruded into a circular plate shape; the protrusion of the fiber lining and the fiber main rod are integrated, and the fiber lining can be used for installing a bearing plate and can also be used for installing a fixed sizing or expanding head cage. The convex cross section of the fiber lining is in a convex shape of a rectangle, a trapezoid, a polygon, an ellipse and a superposition of a rectangle and an arc.

The protrusion of the fiber lining is integrated with the fiber main rod.

The fiber rod is composed of a fiber rod central steel core; the outside of the central steel core of the fiber rod is formed by combining fibers and a fiber sleeve prepared from high polymer.

At least one end of the fiber rod is provided with a thread, or the fiber rod is provided with a through long thread, or both ends of the fiber rod are provided with threads, and the reinforcing steel bar nut connector is connected with the threads of the fiber rod; the steel bar nut connector can also be embedded in the anchor rod in advance.

Further, the full-length or partial finish-rolled deformed steel bar of the anchor rod with the diameter of 8-50 mm is used as the lining of the fiber rod body; in particular to a thread finish rolling screw-thread steel used as the lining of the thread;

furthermore, the fiber is formed by resin impregnation coagulation after directly weaving, twisting or rewinding or fabric winding with the fiber, and the finish rolling deformed steel bar and the nonmetal material fiber are compounded with the resin into one or more pieces (parallel or combined); one or more (possibly combined) may also be used for the pure fiber rod.

The fiber is carbon fiber, basalt fiber or glass fiber, and also can be a tensile fiber anchor rod body prepared from high polymer material fiber, namely a main bar rod, and the tensile fiber rod body is of a tensile fiber rod body structure (provided with an external thread structure) which is formed by connecting the segmented tensile fiber rod body through a connecting nut.

Furthermore, the metal material and the non-metal material are compounded into one or more steel cores, and one of concrete or cement mortar, cement paste or other curable materials is poured and solidified into an anchor rod or an enlarged head anchor rod or an equal-diameter anchor rod is formed by the anchor rod and the enlarged head. When the anchor rod is prepared, the bottom end part of the tensile fiber rod body is provided with an expanded head framework, and the expanded head framework comprises a bearing plate (piece), a reinforcing steel bar cage or a variable-diameter reinforcing steel bar cage capable of expanding the diameter, a bag and other anchoring pieces; refers to various bearing parts such as bearing plates.

At least one end of the tensile fiber rod is provided with a thread 2, or both ends of the tensile fiber rod are provided with threads 2; or the surface of the whole fiber rod body is provided with a thread 2 (prepared by a glass fiber reinforced plastic process) for connecting a connecting nut to the thread;

the number of the protrusions of the fiber lining on the fiber rod is N, and N is less than 10.

The fiber rod 1 or the fiber rod with the steel core fiber sleeve composite structure is internally provided with an optical fiber.

And finishing the threads by using threads with the diameter of 8-50 mm as the lining of the fiber rod body.

Concrete or cement mortar is poured between the fiber main reinforcement rods and the straight-through power expansion head framework, and cement slurry is solidified into an anchor rod or an expansion head anchor rod; the anchor rod can be an enlarged head anchor rod or an equal diameter anchor rod formed by applying one of concrete or cement mortar, cement paste or other curable materials under the condition of applying stress and solidifying.

And pouring concrete or cement mortar, cement paste or other curable materials for wrapping and solidifying the concrete or cement mortar, cement paste or other curable materials into an anchor rod or forming an expanded head anchor rod or an equal-diameter anchor rod together with the expanded head. When the anchor rod is prepared, the bottom end part of the tensile fiber rod body is provided with an expanded head framework, and the expanded head framework comprises a bearing plate, a reinforcing steel bar cage or a variable-diameter reinforcing steel bar cage capable of expanding the diameter, a bag and other anchoring parts; refers to various bearing parts such as bearing plates.

The fiber is made by directly weaving, twisting or winding the fiber again or winding the fabric and then impregnating and coagulating the resin.

The finish-rolled deformed steel bar and the non-metallic material fiber are compounded with the resin in one or more (parallel or combined) numbers; one or more (possibly combined) may also be used for the pure fiber rod. The fiber is carbon fiber, basalt fiber or glass fiber, and also can be a tensile fiber anchor rod body prepared from high polymer material fiber, namely a main bar rod, and the tensile fiber rod body is of a tensile fiber rod body structure (provided with an external thread structure) which is formed by connecting the segmented tensile fiber rod body through a connecting nut.

The structure of the composite bar of the fiber bar or the non-metal fiber and the finish rolled steel bar.

The utility model relates to a structure of a fiber bar or a composite bar of non-metal fibers and finish rolled steel bars; the tensile fiber comprises glass fiber, basalt fiber, resin, geotextile, canvas, glass fiber reinforced resin, aramid fiber, ultra-high molecular weight polyethylene fiber, carbon fiber, boron ethylene, polytetrafluoroethylene, graphene, carbon element related materials and composite materials thereof, macromolecules, macromolecular polymer materials, nanometer materials, metal materials, nonmetal materials and the like, particularly after the fiber is prepared into a fabric, the metal materials and the nonmetal materials are compounded into one or more cores (poured) as the tensile fiber rod body shape, including but not limited to a cylinder and a bamboo joint-shaped cylinder; polygonal (tangent to circle) cylinder, circle/rectangle, square, ray, ring, etc. The cross-sectional plane figure can be a circle (ellipse), a polygon (comprising a triangle, a rectangle, a trapezoid, a parallelogram, a pentagon and a hexagon), a rhombus, a fan, a bow, L, H, S, U, Π, C, V and the like; the specification, model, shape, size, material and various parameters can be adjusted. The utility model discloses the stock is enlarged footing stock and straight-through constant diameter stock. Especially, the end part of the tensile fiber rod body is provided with an expansion head framework which comprises a telescopic linkage rod, a bearing plate (piece), a steel bar cage or a variable-diameter steel bar cage capable of expanding the diameter, a bag and other anchoring parts; pouring concrete or cement mortar, cement paste or one of other curable materials on the tensile fiber rod body and the expansion head framework, and solidifying the concrete or the cement mortar, the cement paste or the other curable materials to form an expansion head anchor rod or an equal-diameter anchor rod; the anchor rod is a prestressed enlarged head anchor rod or an equal-diameter anchor rod formed by pouring concrete or cement mortar, cement paste or one of other curable materials under the condition of applying stress by pre-tensioning or post-tensioning and solidifying.

The application of the present application can refer to CN2021206318530 a bladder type variable diameter fiber cage and its anchor rod or pile foundation, etc., including the previous application of the present applicant.

According to the design requirement of prestress application, the main reinforcement is a fiber reinforcement, and reinforcement materials are configured, wherein the reinforcement materials comprise a reinforcement (fiber) cage, a stirrup, a steel sleeve, a steel wire mesh cage, a pressure bearing plate and a pressure bearing flange nut; the main reinforcement and the configured reinforcing steel bar (fiber) material are coagulated and solidified together to form the anchor rod piece.

The anti-floating and anti-tensile capabilities of the post-applied prestress anti-floating and anti-tensile anchor rod and the main reinforcement of the steel bar anchor rod can be fully embodied. The non-adhesive pre-tensioned or post-tensioned prestressed anti-floating tensile steel bar anchor rod is formed, and the anti-corrosion grease layer is made of anti-corrosion grease or anti-corrosion asphalt or polymer material. The unbonded pre-tensioned or post-tensioned prestressed anti-floating tensile fiber rib has the anticorrosion characteristic, and only the isolation from the cementing material is made during pouring, so that a space is reserved for implementing post-tensioned stress.

The front end of the tensile fiber rod body of the anchor rod body is provided with a device which is connected or connected with a telescopic linkage rod, a pressure bearing plate (piece), a variable-diameter reinforcement cage, a fixed-diameter reinforcement cage, a bag or other anchor heads to form a prefabricated prestressed anchor rod body system. The combined assembly type anchor rod component forms an engineering part with compression resistance and tensile resistance (mainly tensile resistance and better effect) in practical application. The extension continuous anchor rod is a rod piece which can be continuously formed into an extension rod and finally becomes an assembly.

The prestressed fixing of the pretensioned prestressed anti-floating tensile steel bar anchor rod generally adopts two modes, one mode is that concrete is poured on the prestressed steel bar while the prestress is exerted, and the prestressed steel bar anchor rod is formed after the concrete is solidified; the concrete is tightly bonded with the anchor rod, namely a bonded anchor rod is arranged; the second kind, the utility model discloses can adopt prefabricated tubular column to constitute the prestressed structure of a hollow stock, the industrial production of being convenient for, and weight is controllable, and the cost of transportation is not high, and the quality of applying of prestressing force and standard change control and assurance in the mill.

Has the beneficial effects that: the utility model aims to achieve the 3-4 times tensile value (mainly determined by the variety of the fiber) of the cross section of the anchor rod body made of finish rolling twisted steel; the cage body or the bearing part is very convenient to be connected in series, so that the overall performance of the rod body is good, and the reinforced fiber anchor rod body is simple in structure and light in dead weight; the prestressed tendon duct does not need to be reserved, the size of the member is reduced, the construction is simple and convenient, and the requirement on equipment is low. The prestress loss is small, and the tension can be compensated. The corrosion resistance is strong. The shock resistance is good. When earthquake load causes large-amplitude displacement, the reinforced fiber anchor rod body is generally always in a tension state, the stress change amplitude is small and is kept in a tension working stage, and the common steel bars enable structural energy dissipation to obtain the same construction method for ensuring the reinforced fiber anchor rod body as a post-tensioning method, but the prestressed tendons are not in direct contact with concrete and are in an unbonded state. The reinforced fiber anchor rod body is a special prestressed rib with an anti-corrosion isolation layer and an outer sheath. The utility model discloses can be used to the anti tensile fibre muscle stock that floats of post-tensioned prestressing force to use, the tensile fibre body of rod of prestressing force actually forms the fibre muscle of a free section, but no longer extends, has the effect that the stress was applyed. A pretensioned or pretensioned prestressing anti-floating tensile steel anchor rod and a construction method. The prepared anti-floating tensile reinforced bar anchor rod can be used for prefabricating a prestressed anchor rod assembly by a post-tensioning method and an application technology, various anchor heads such as a straight-through or an expanding head are combined together to form a post-tensioning prestressed anchor rod system, the anti-floating deformation and the elastic deformation of a rod body in a free section are overcome, the prestress is applied after the rod body is prepared by a new method, and a finished product of a prestressed anchor rod is obtained for application, so that the purpose of controlling the deformation amount in the engineering practice of the pressure-bearing straight-through or variable-diameter reinforcement cage expanding prestressed anchor rod is achieved, and particularly the effects of saving the construction time, saving the cost and improving the engineering quality and efficiency are achieved. The tensile fiber shaft has multiple functions.

Drawings

FIGS. 1-4 are schematic views of the longitudinal cross-sectional structure of the single-protrusion fiber rod of the present invention;

fig. 5-8 are schematic views of the longitudinal section structure of the double-protrusion fiber rod of the present invention;

fig. 9-11 illustrate the use of a central steel core 1-1 for the anchor rod body of the present invention; the outside of the central steel core of the fiber rod is a schematic view of fibers and high polymer, wherein the thread 2 is arranged at one end of the figure 9 through long thread, the thread 2 is arranged at one end of the figure 10, and the thread 2 is arranged at both ends of the figure 11.

Figure 12 is a schematic view of the use of the anchor of the present invention.

Fig. 13 is a schematic view of the anchor rod of the present invention.

Fig. 14 is a schematic diagram of the diameter-variable fiber cage used in the anchor rod of the present invention.

Detailed Description

The number of the reinforcing steel bars in the anchor rod component applying post-tensioning prestress is one or more than one, and the specification, the performance, the strength and the diameter of the reinforcing steel bars can be specifically determined according to the design requirement; the length, the shape and the area of the cross section of the prestressed anchor rod assembly are set according to specific engineering technical requirements; when the length of the rod piece required by engineering is overlong, two or more than two steel bar rod pieces can be connected by adopting a nut connector or other modes so as to achieve the required length; because at least one end of the fiber rod is provided with the thread 2, or the thread is a full-length thread, or both ends of the fiber rod are provided with the threads 2, the reinforcing steel bar nut connector can be connected with the fiber rod; the steel bar nut connector can also be embedded in the anchor rod in advance. The anchor rod member may be solid or hollow.

In the drawing, the tensile fiber anchor rod body of the utility model is mainly made of tensile fiber, and at least one end of the tensile fiber rod is provided with a thread 2, or both ends are provided with threads 2; or the surface of the whole fiber rod body is provided with a thread 2 (prepared by a glass fiber reinforced plastic process) for connecting a nut to the thread; the fiber rod is composed of a fiber rod central steel core 1-1; the outer part of the central steel core of the fiber rod is formed by combining fibers and a fiber sleeve 1-2 prepared by high polymer (prepared by a glass fiber reinforced plastic process);

the fiber rod is provided with threads throughout the length, a plurality of protrusions 3 of the fiber lining are arranged at a plurality of positions in the center of the fiber rod, the protrusions are in various shapes, can be rectangular (the shape is a circular plate), trapezoidal, polygonal, oval and the like in cross section, and can also be provided with a plurality of protrusions (the fibers can be woven into the protrusions and then cured by resin); the fiber rod body is formed by impregnating, gluing and coagulating fiber resin. The fiber rod 1 or the fiber rod with the steel core fiber sleeve composite structure is internally provided with the optical fiber 4, and the concrete 5 can be used for pouring concrete. The sensing optical fiber of the optical fiber 4 is a strain sensing optical fiber, is used for monitoring the stress of the anchor rod, and is matched with Brillouin or optical time domain reflection equipment.

The thread is formed by connecting anchor rods with longer specifications and installing a bearing plate at the bottom end of the anchor rod, a nut is needed to install the thread, the thread is matched with the nut, and the tensile fiber rod body and the thread are both formed by impregnating tensile fibers and resin, adhering and coagulating into the rod body and the thread. The anchor rod body can be a bonded or unbonded matched tensile fiber rod body, the high-strength nut can lock prestress when external stress is applied, and fiber reinforced concrete can be used with the anchor rod body and concrete of the anchoring section. The diameter may be above 32 to 100 mm. In order to prepare threads, the full-length or partial finish-rolled deformed steel bar of the anchor rod with the diameter of 8-50 mm is used as a lining of a tensile fiber rod body; in particular, the thread finish rolling screw-thread steel is used as the lining of the thread part, and more than half of the cross section area of the lining is a pulling fiber body. The tensile fiber shaft is formed by winding a fabric of the tensile fiber, and then impregnating, gluing and coagulating the fabric with resin. The warp and weft of the fiber need to be considered; tensile fiber is carbon fiber or basalt fiber or aramid fiber and constitutes the tensile fiber stock body of rod, and the tensile fiber body of rod reaches the tensile fiber body of rod structure that needs with the threaded connection of sectional tensile fiber body of rod through coupling nut and tip. The fixed part of the bottom end part of the tensile fiber rod body is provided with an expanded head framework, and the expanded head framework comprises a telescopic linkage rod, a steel bar cage or a variable-diameter steel bar cage capable of expanding the diameter; concrete or cement mortar, cement paste or one of other curable materials is poured on the tensile fiber rod body and the expansion head framework and is solidified into an anchor rod and an expansion head; the anchor rod is wrapped by applying concrete or cement mortar, cement paste or other curable materials under the condition of applying stress, and is solidified. The bottom end part of the tensile fiber rod body can also be independently provided with a bearing plate, or the bearing plate is combined with the expansion head framework. It is also illustrated that the bottom end of the tensile fiber rod body can be provided with an unexpanded head skeleton or an anchor rod head combined with a pressure bearing plate.

Set up the bearing plate, a plurality of bulge parts can also be the structure of installation polylith bearing plate, become bearing type does not have vertical muscle variable diameter fiber cage expander stock or pile foundation, and the variable diameter fiber cage of no vertical muscle is expanded the release when arranging the expander section in, is equipped with slip casting or injection concrete pipe mechanism on the variable diameter fiber cage of no vertical muscle to reach slip casting or pour into the concrete and become stock or pile foundation, and the variable diameter fiber cage of no vertical muscle becomes the skeleton of stock or pile foundation.

The utility model discloses a pressure-bearing reducing fiber cage expands body stock or pile foundation, reducing fiber cage expand the release when arranging the expander section in, are equipped with slip casting or injection concrete pipe mechanism on reducing fiber cage to reach slip casting or pour into the concrete and become stock or pile foundation, reducing fiber cage becomes the skeleton of stock or pile foundation.

N circular plates can be provided with N fiber cages.

The fiber of the fiber anchor rod is mainly carbon fiber, basalt fiber, glass fiber, aramid fiber glass, glass fiber reinforced resin, geotextile, canvas, ultra-high molecular weight polyethylene fiber, boron alkene, polytetrafluoroethylene, graphene, carbon element related materials and composite materials thereof, macromolecules, high polymer materials, nano materials, steel, other metals, composite metals, metal materials, non-metal materials and the like.

The utility model has the application range including but not limited to various pile types such as anti-floating, anti-pulling, tensile and anti-compression; the application fields include but are not limited to various categories of building engineering, slope protection, geological disasters and the like. Figure 12 is a schematic view of the use of the anchor of the present invention. Can be applied to all the patents of the prior application of the applicant.

The foregoing is only an embodiment of the present invention and is not intended to limit the scope of the invention, which is to be accorded with the spirit and scope of the invention.

Claims (10)

1. A fiber main bar for anchor rods or pile foundations is characterized by comprising a fiber bar body and a plurality of protrusions, wherein the fibers are arranged at least one end of the fiber bar body or the fiber bar body is provided with threads in the whole length, a plurality of positions in the center of the fiber bar body are provided with fiber lining protrusions, and the fiber bar body is formed by impregnating fiber resin and adhering the fiber resin into a glue to be coagulated into a bar body.

2. A fibre reinforced bar for anchor rods or piles according to claim 1, wherein the fibre lining has a rectangular, trapezoidal, polygonal or elliptical cross-section.

3. A fibre reinforced rod for anchor rod or pile foundation according to claim 1 or 2, wherein the projections of the fibre lining are integral with the fibre reinforced rod.

4. A fibre reinforced bar for anchor rods or piles according to claim 1 or claim 2, wherein the fibre bar is formed from a central steel core of fibre bar; the outer part of the central steel core of the fiber rod is formed by combining fibers and fiber sleeves prepared by high polymers.

5. A fibre reinforced main rod for anchor rod or pile foundation as claimed in claim 1 or 2, wherein at least one end of the fibre rod is provided with a thread, or a full length thread, or both ends are provided with a thread, and the reinforcing nut connector is connected with the thread of the fibre rod; the reinforcement nut connector may be embedded in the anchor rod in advance.

6. A fibre reinforced bar for anchor rod or pile foundation as claimed in claim 1 or 2, wherein at least one end of the tensile fibre bar is provided with a screw thread, or both ends are provided with a screw thread, or the surface of the whole fibre bar body is provided with a screw thread.

7. A fibre reinforced bar for anchor rods or piles according to claim 1 or 2, wherein the number of projections of the fibre lining on the fibre bar is N, with N being less than 10.

8. A fibre reinforced bar for anchor rod or pile foundation according to claim 1 or 2, wherein the fibre bar 1 or the fibre bar of steel core fibre sleeve composite structure is provided with optical fibres.

9. A fibre reinforced bar for anchor rods or piles according to claim 1, wherein finish-rolled threads of 8 to 50 mm diameter are used as the lining of the fibre bar.

10. The fiber main reinforcement rod for the anchor rod or the pile foundation according to claim 3, wherein the fiber main reinforcement rod and the through power expansion head skeleton are poured with concrete or cement mortar, and the cement mortar is solidified into the anchor rod or the expansion head anchor rod; the anchor rod can be an enlarged head anchor rod or an equal diameter anchor rod formed by applying one of concrete or cement mortar, cement paste or other curable materials under the condition of applying stress and solidifying.

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