JPH0587115U - Concrete reinforcement - Google Patents

Abstract

(57) [Abstract] [Objective] The present invention aims to provide a concrete reinforcing material which is lightweight and has corrosion resistance. [Structure] A concrete reinforcing material in which an FRP base rod body 1 having irregularities on its surface is connected by a predetermined connecting tool 2 in a plane lattice shape or a three-dimensional lattice shape.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete reinforcing material used for concrete panels (such as building exterior wall materials) and concrete structures other than concrete panels.

[0002]

[Problems to be solved by conventional techniques and devices]

 In the conventional concrete reinforcing material, reinforcing bars and stainless reinforcing bars are arranged in a grid, and the intersecting parts are welded or bundled with a metal wire rod for use.

However, such conventional stiffeners are heavy. Adhesion to concrete is not good. It takes time for welding and bundling work. Corrosion occurs due to the metal. There are shortcomings such as.

The present invention has a technical object to provide a concrete reinforcing material that solves the above drawbacks.

[0005]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

The FRP wire rod 6 is wound around the surface of the FRP rod 5 to form the FRP base rod body 1 having irregularities on the surface, while two FRP base rod bodies 1 are inserted inside. A block-shaped synthetic resin connector 2 having cross-shaped through holes 21 is formed, and the two FRP base rod bodies 1 are connected by the connector 2 in a cross-shaped manner. The present invention relates to a characteristic concrete reinforcing material.

Further, the FRP wire rod 6 is wound on the surface of the FRP rod 5 to form the FRP base rod body 1 having irregularities on the surface, while the above-mentioned one is formed on the top surface of the synthetic resin base. A vertical concave groove 3 for fitting the FRP base rod body 1 is provided, and a horizontal concave groove 4 for fitting the other FRP base rod body 1 is provided on the bottom surface in a direction substantially orthogonal to the vertical concave groove 3. The present invention relates to a concrete reinforcing material, characterized in that a connecting member 2 made of synthetic resin is formed, and the two connecting members 2 of the FRP base rod 1 are connected in a cross shape.

Further, the FRP wire rod 6 is wound around the surface of the FRP rod 5 to form the FRP base rod body 1 having irregularities on the surface, while the FRP base rod body 1 is fitted onto the FRP base rod body 1. The left and right V-shaped or U-shaped curved bodies 7 and 19 are formed, and the front ends of the curved bodies 7 and 19 are bent downward so that they are fitted to the other FRP base rod body 1. It is made up of a metal wire rod by continuously connecting the downward curved bodies 8 and extending the rear end of one of the curved bodies 7 backward and bending the extended rear end inward to provide a locking portion 9. And a plurality of the FRP base rods 1 are connected to each other in a plane lattice shape or a three-dimensional lattice shape by the connection tool 2. ..

Further, the FRP wire rod 6 is wound around the surface of the FRP rod 5 to form the FRP base rod body 1 having irregularities on the surface, while the metal made up of the C-shaped metal ring 15 is formed. And a plurality of the FRP base rods 1 are connected to each other in a plane grid shape or a three-dimensional grid shape by the connection tool 2.

Further, the FRP wire rod 6 is wound around the surface of the FRP rod 5 to form the FRP base rod body 1 having irregularities on the surface, while the FRP base rod body 1 is fitted onto the FRP base rod body 1. Form two V-shaped or U-shaped curved bodies 10 and 11 on the left and right sides, and bend the front ends of the curved bodies 10 and 11 downward to be fitted to another FRP base rod body 1. The lower curved bodies 12 are connected to each other, the rear ends of both curved bodies 10 and 11 are extended rearward, and the extended rear ends of the curved bodies 10 and 11 are bent inward to provide locking portions 13 and 14. A concrete reinforcing material, characterized in that a connecting tool 2 made of a metal wire is formed, and a plurality of the FRP base rod bodies 1 are connected by the connecting tool 2 in a plane lattice shape or a three-dimensional lattice shape. Is.

[0011]

Operation The operation according to the first aspect of the invention will be described.

Since the FRP base rods 1 are connected to each other in a cross shape by the block-shaped synthetic resin connecting tool 2, the concrete reinforcing material becomes lightweight and does not corrode.

Further, since the FRP wire rod 6 is wound around the FRP rod 5, irregularities are formed on the surface of the FRP base rod body 1, and the adhesion to concrete becomes good.

The operation of the invention according to claim 2 will be described.

Since the FRP base rod body 1 is fitted in the vertical groove 3 and the horizontal groove 4 of the synthetic resin coupling tool 2 to connect the FRP base rod bodies 1 in a cross shape, the weight is reduced. It is a concrete reinforcing material that does not corrode and has good connection workability.

Further, since the FRP wire rod 6 is wound around the FRP rod 5, irregularities are formed on the surface of the FRP base rod body 1, and the adhesion to concrete is improved.

The operation of the invention according to claim 3 will be described.

Curved bodies 7 and 19 are fitted on the surface of one FRP base rod body 1 arranged in the lateral direction, and the curved bodies 7 and 19 are vertically arranged on the lower curved body 8 located between the curved bodies 7 and 19. Another FRP base rod body 1 is inserted and the lower curved body 12 is brought into contact with the back surface of the FRP base rod body 1 arranged in the longitudinal direction. When the FRP base rods 1 arranged in the vertical direction are locked, the FRP base rods 1 are connected in a cross shape. Therefore, the FRP base rods 1 can be easily connected in a plane lattice shape or a three-dimensional lattice shape, and the FRP base rods 1 can be connected quickly and reliably by the elasticity of the metal wire connecting member 2. ..

Further, since the FRP wire rod 6 is wound around the FRP rod 5, unevenness is formed on the surface of the FRP base rod body 1, and the adhesion to concrete becomes good.

The operation of the invention according to claim 4 will be described.

Since the FRP base rods 1 are connected to each other in a cross shape by the connecting tool 2 formed of the C-shaped metal ring 15, the FRP base rods 1 can be easily formed into a planar lattice or a three-dimensional lattice. Can be connected.

Further, since the FRP wire rod 6 is wound around the FRP rod 5, unevenness is formed on the surface of the FRP base rod body 1, and good adhesion to concrete is achieved.

The operation of the invention according to claim 5 will be described.

A curved body 10/11 is fitted on the surface of one FRP base rod body 1 arranged in the lateral direction, and the curved body 10/11 is vertically arranged on the lower curved body 12 located between the curved bodies 10/11. Another FRP base rod body 1 is inserted and the lower curved body 12 is brought into contact with the back surface of the thin rod body arranged in the longitudinal direction, and the locking portions 13 and 14 at the rear ends of the curved bodies 10 and 11 are attached. When the FRP base rods 1 arranged in the longitudinal direction are locked, the FRP base rods 1 are connected to each other in a cross shape. Therefore, the FRP base rods 1 can be easily connected to each other in a plane lattice shape or a three-dimensional lattice shape, and the elasticity of the metal wire connecting members 2 allows the FRP base rods 1 to be connected quickly and reliably. It Further, since the FRP wire rod 6 is wound around the FRP rod 5, unevenness is formed on the surface of the FRP base rod body 1, and the adhesion to concrete becomes good.

[0025]

【Example】

 1 and 2 are embodiments according to the invention of claim 1, FIGS. 3 and 4 are embodiments according to the invention of claim 2, FIGS. 5 and 6 are embodiments according to the invention of claim 3, and FIG. Reference numerals 8 indicate the embodiment according to the invention described in claim 4, and FIGS. 9 and 10 show the embodiment related to the invention described in claim 5. As the reinforcing fiber used in the FRP rod 5 and the FRP wire rod 6, any fiber such as glass fiber, carbon fiber, Kevlar fiber, ceramic fiber, metal fiber may be used.

Further, the reinforcing fiber used for the FRP rod 5 and the reinforcing fiber used for the FRP wire 6 may be different fibers.

As the resin used for the FRP rod 5 and the FRP wire rod 6, vinyl ester resin, unsaturated polyester resin, epoxy resin, phenol resin or the like is used.

The FRP base rod body 1 in the drawing is obtained by spirally winding an FRP wire rod 6 around an FRP rod 5.

1 and 2 will be described.

The concrete reinforcing material according to FIGS. 1 and 2 is obtained by connecting the FRP base rods 1 by the following method.

A rectangular parallelepiped having a mounting surface and a peripheral wall and having an inner hole 20 having a predetermined depth from above is provided substantially in the center, and the peripheral wall of the rectangular parallelepiped communicates with the inner hole 20 having a predetermined length from the upper edge. The cutout short grooves 16 are formed to face each other, and on the other hand, the cutout long grooves 17 communicating with the inner hole 20 having a length longer than the cutout short grooves 16 face each other at a position adjacent to the cutout short grooves 16 on the peripheral wall of the rectangular parallelepiped. The mold 18 made of silicon rubber formed in a state is provided, one FRP base rod body 1 is installed between the facing notch long grooves 17, and the other FRP base rod body 1 is installed between the facing notch short grooves 16. And the FRP base rods 1 are crossed in the inner hole 20 of the molding die 18, a fluid synthetic resin is introduced into the inner hole 20, and the synthetic resin is hardened. Is removed from the mold, and the two FRP base rods 1 are connected to each other in a cross shape by a block-shaped synthetic resin connecting member 2.

Therefore, when the fluid synthetic resin introduced into the inner hole 20 of the molding die 18 hardens, the two FRP base rod bodies 1 are connected by the connecting tool 2 in a crossed manner.

Since the molding die 18 has a rectangular parallelepiped shape, the bottom surface is flat. Therefore, when the molding die 18 is placed on the installation surface, the molding die 18 does not wobble, and since the inner hole 20 has a rectangular parallelepiped shape, the connecting tool 2 inevitably also has a rectangular parallelepiped shape. Since the top surface and the bottom surface are flat surfaces, the FRP base rod body 1 already connected can be stored and mounted steadily and steadily.

If the molding die 18 is made of metal, expensive equipment such as a melting furnace is required to mold the molding die 18 made of metal, and the cost of the product increases. In this respect, if the molding die 18 is molded from silicone rubber, such a problem does not occur. Since silicon rubber has a lower thermal conductivity than metal, a mold molded with silicone rubber can prevent molding defects due to a sudden temperature drop of the synthetic resin introduced into the mold 18. It has the advantage that it can be formed and that the mold molded with silicone rubber has good demolding properties. From this point as well, it is desirable to use silicone rubber as the material of the mold 18.

As the synthetic resin flowing into the inner hole 20 of the molding die 18, a thermoplastic resin is used. A thermosetting resin may be used, but the former has better workability because the curing time is shorter. Specifically, EVA (ethylene / vinyl acetate copolymer resin) or polyolefin resin is used. These resins melt at about 150 ° C to 180 ° C and cure at room temperature in about 2 to 3 minutes, so that the working efficiency is greatly improved.

When a synthetic resin flows into the inner hole 20 of the molding die 18, the resin flows out from the notch short groove 16 and the notch long groove 17 which are not closed by the FRP base rod body 1 by a suitable means such as tape. By

3 and 4 will be described.

The connecting tool 2 according to FIGS. 3 and 4 is made of synthetic resin, and has a vertical groove 3 and a horizontal groove 4 in which the FRP base rod body 1 is fitted on the top surface and the bottom surface of the base body. It has a rectangular parallelepiped shape. The vertical groove 3 and the lateral groove 4 are formed with a narrow width on the opening side so that the fitted FRP base rod body 1 does not fall off.

If the connecting tool 2 is used, an operator can bring the connecting tool 2 to the site and easily and quickly connect the FRP base rod bodies 1 to each other, so that the work efficiency of arranging the reinforcing material is very high. improves.

5 and 6 and FIGS. 9 and 10 will be described.

The connector 2 according to FIGS. 5, 6 and 9 and 10 is formed by bending a single thin metal wire rod in consideration of the diameter of the FRP base rod body 1 to be connected. ..

The locking portions 9, 13, 14 are formed in a curved shape that matches the outer peripheral surface of the FRP base rod body 1 in order to achieve good locking.

Since these connecting tools are formed by bending a single thin metal wire, they exhibit elasticity and can firmly and reliably connect the FRP base rods 1 in a crossed manner. become.

If the connecting tool 2 is used, an operator can bring the connecting tool 2 to the site and easily and quickly connect the FRP base rod bodies 1 to each other. Therefore, the work efficiency of arranging the reinforcing material is very high. improves.

Note that FIG. 10 shows a case where the FRP base rod body 1 is connected in a three-dimensional lattice shape by using two kinds of connecting tools 2 including the connecting tool 2 according to FIGS. 5 and 6 and the connecting tool 2 according to FIG. 9. Is.

7 and 8 will be described.

The connecting tool 2 according to FIGS. 7 and 8 is a gun-type “C Ringer” manufactured by Meiho Co., Ltd., which is used for cross-connecting wire rods. The FRP base rod 1 can be connected very quickly just by pulling the trigger. Any number of the C-shaped metal rings 15 may be arranged in parallel to form the connector 2, and the number thereof is determined in consideration of the strength required for the reinforcing material.

[0048]

[Effect of the device]

 Since the present invention is configured as described above, it is a concrete reinforcing material that exhibits the following effects.

Since the base rod body is made of FRP, it is lightweight and has good corrosion resistance.

Since the FRP base rod in which the FRP wire rod is wound around the FRP rod is used, irregularities are formed on the surface of the FRP base rod, and therefore the adhesion to concrete is improved (anchoring). effect).

Since the connecting work of the FRP base rod members is performed extremely efficiently, the workability is excellent.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a device according to a first aspect of the present invention.

FIG. 2 is a partial perspective view showing a use state according to the device of claim 1.

FIG. 3 is an exploded perspective view according to the device of claim 2;

FIG. 4 is a partial perspective view showing a usage state according to the device of claim 2;

FIG. 5 is an exploded perspective view according to the invention of claim 3;

FIG. 6 is a partial perspective view showing a use state according to the invention of claim 3;

FIG. 7 is a partial front view showing a usage state according to the invention of claim 4;

FIG. 8 is a partial perspective view showing another usage state according to the invention of claim 4;

FIG. 9 is a perspective view of a connector according to a fifth aspect of the present invention.

FIG. 10 is a partial perspective view showing a usage state according to the invention of claim 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 FRP base rod body 2 Connecting tool 3 Vertical groove 4 Horizontal groove 5 FRP rod 6 FRP wire rod 7 Curved body 8 Lower curved body 9 Locking portion 10 Curved body 11 Curved body 12 Lower curved body 13 Locking portion 14 Locking part 15 Ring 19 Curved body 21 Through hole

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Tetsuya Kobayashi 1-5-5 Minamihonmachi, Joetsu City, Niigata Prefecture Arizawa Manufacturing Co., Ltd. (72) Masato Ueki 1-5-5 Minamihonmachi, Joetsu City, Niigata Prefecture Arisawa Manufacturing Co., Ltd.

Claims (5)

[Scope of utility model registration request] 1. A FRP wire rod is wound around the surface of an FRP rod to form an FRP base rod body having irregularities on the surface, while two FRP base rod bodies are inserted inside. A concrete reinforcing material, characterized in that a block-shaped synthetic resin connector having insertion holes formed in a cross shape is formed, and the two FRP base rods are connected in a cross shape by the connector. 2. An FRP wire rod is wound around the surface of an FRP rod to form an FRP base rod body having irregularities on the surface, while the FRP base rod is formed on the top surface of a synthetic resin base. A vertical groove for fitting the rod is provided and a lateral groove for fitting the other FRP base rod is provided on the bottom surface in a direction substantially orthogonal to the vertical groove to form a synthetic resin connector. Then, the concrete reinforcing material is characterized in that the two FRP base rods are connected in a cross shape by the connecting tool. 3. A FRP wire rod is wound around the surface of an FRP rod to form an FRP base rod body having irregularities on the surface, and on the other hand, a V-shape fitted to this one FRP base rod body. -Shaped or U-shaped left and right curved bodies are formed, and the front ends of these curved bodies are connected by a downward curved body which is curved downward and is fitted to another FRP base rod body. A rear end of the curved body is extended rearward, the extended rear end is bent inward, and a locking portion is provided to form a connecting member made of a metal wire. A concrete reinforcing material in which base rods are connected in a plane lattice shape or a three-dimensional lattice shape. 4. An FRP wire rod is wound around the surface of an FRP rod to form an FRP base rod body having irregularities on the surface, while a metal connector made of a C-shaped metal ring is provided. A concrete reinforcing material characterized by being formed and connecting a plurality of the FRP base rods in a plane lattice shape or a three-dimensional lattice shape by the connecting tool. 5. An FRP wire rod is wound around the surface of an FRP rod to form an FRP base rod body having irregularities on the surface, and on the other hand, a V-shape fitted to this one FRP base rod body. -Shaped or U-shaped left and right curved bodies are formed, and the front ends of both curved bodies are connected by a downward curved body that is curved downward to be fitted to another FRP base rod body, and both curved bodies are connected. The rear end of the body is extended rearward, each extended rear end is bent inward, and a locking portion is provided to form a metal wire connecting device, and the connecting device is used to form a plurality of connecting members. A concrete reinforcing material characterized by connecting FRP base rods in a plane lattice shape or a three-dimensional lattice shape.