JPH05311809A - Mesh-shaped fiber reinforcing material - Google Patents

Abstract

PURPOSE:To mass-produce a stable mesh-shaped reinforcing material having excellent quality. CONSTITUTION:In the case of forming a mesh 5 by latticedly arranging plurality of wires 10a,10b formed by bundling wire elements 11a, 11b severally formed in a string-shape into a combined braid-shape, the wire elements 11a, 11b of wires 10a,10b crossing at an intersection point 12 are mutually interwined so as to cross alternately in a vertical direction, and then inpregnated in an epoxy resin 13 or the like and cured for fastenedly fixing them. Thus the excellent strength of the wires at the intersection point can be effectively obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mesh fiber reinforcing material suitable for use as a reinforcing material for structures.

[0002]

2. Description of the Related Art FIG. 4 is a view showing a conventional mesh-shaped reinforcing material. Conventionally, when the mesh reinforcing material 25 is molded, as shown in FIG. 4, the reinforcing fiber materials 26 each formed in a rod shape are arranged in a lattice shape in a manner suitable for the arrangement. , Intersection point 2 at which the reinforcing fiber materials 26 cross each other
The 5a portion was assembled and processed by binding or adhering.

[0003]

However, in such a method, when the whole mesh-shaped reinforcing member 25 has a large area or the grid has a small pitch, a large number of intersections 25a are formed. It is necessary to assemble and process each by binding or adhering, and the amount of work is enormous. Therefore, in such a method, when the mesh-shaped reinforcing member 25 is manufactured in a large amount, the efficiency thereof is extremely poor, and the strength of the entire reinforcing member is reduced by the processing and assembling state of the intersection 25a. There was an inconvenience that the quality affected. In view of the above circumstances, the present invention provides a mesh-like reinforcing material that can be efficiently mass-produced and can maintain stable high quality.

[0004]

That is, the present invention has a plurality of fibrous bodies (10a, 10b) formed by bundling fiber element aggregates (11a, 11b) each formed in a string shape, In a mesh-shaped reinforcing material (5) formed by arranging the plurality of fibrous bodies (10a, 10b) in a grid pattern, an intersection point (12) is provided on the mesh-shaped reinforcing material (5) and the plurality of fibrous bodies ( 10a, 10b) are formed at the portions where they intersect with each other, and fixing means (13) made of a resin material is provided at the intersection (12) for the plurality of fibrous bodies (10a, 1b).
0b) is provided by being impregnated and cured. The numbers in parentheses () indicate the corresponding elements in the drawings for the sake of convenience, and therefore the present description is not limited to the description in the drawings. below

The same applies to the column of [Operation].

[0005]

With the above-described structure, the present invention provides the fixing means (1
3) the fiber element assembly (11a, 11b) is fastened, and the fibrous body (10a, 10a,
It acts to prevent the relative movement of 10b).

[0006]

1 is a plan view showing an embodiment of a mesh-like reinforcing material according to the present invention, FIG. 2 is a plan view showing an intersection portion of the mesh-like reinforcing material shown in FIG. 1, and FIG. 3 is a mesh shown in FIG. FIG. 5 is a diagram showing a crossing state of fibers at intersections of the reinforcing members, FIG. 5 is a diagram showing another embodiment of the mesh reinforcing member shown in FIG. 1, and FIG. 6 is a diagram showing intersections of the mesh reinforcing members shown in FIG. FIG.

As shown in FIG. 1, a greening structure 2 is provided on the roof 1a of the building 1 on which a mesh 5 as a mesh-like reinforcing material is arranged, and the greening structure 2 is braided in a fishing net shape. The mesh 5 formed as a reinforcing member for the PC frame 3 made of precast concrete or the like laid on the rooftop 1a is embedded in the concrete forming the PC frame 3 and attached to the surface of FIG. It is arranged in a grid pattern. Soil 6 is filled and stored in the PC frame 3, and trees 7 are planted in the soil 6.

The mesh 5 has a plurality of wires 10 made of synthetic resin, each of which is formed in a fiber bundle shape. The wires 10 have arrows A and B whose extending directions are the left and right directions in FIG. A plurality of wires 10a that are assembled and arranged so as to face the respective directions, and a shape in which the extending direction thereof is directed in the arrow C and D directions that intersect the arrow A and B directions that are the extending directions of the wire 10a, respectively. Of the plurality of wires 10b assembled and arranged in two different orientation directions 1
It is composed of 0a and 10b. In the mesh 5, the wires 10a and 10b have their intersection points 12 as shown in FIG.
As shown in FIG. 1, the wires 10a and 10b are assembled in a lattice shape so that the wires 10a and 10b intersect with each other.
A plurality of synthetic resin wire elements 11a, 1
1b is formed in a bundle shape in such a manner that it is braided into a braid. Each wire element 11a, 11
b is the same wire element 11 which is different only in the overall orientation direction of the wires 10a and 10b which the wire elements 11a and 11b are composed of. Each single fiber is formed in a string shape in which the orientation directions thereof are substantially the same. In the mesh 5, as shown in FIG. 3, the wires 10a and 10b intersecting at the intersection 12 are intertwined with each other in such a manner that the wire elements 11a and 11b alternately cross each other up and down. Wires 10a, 10
An epoxy resin 13 (not shown) which is a fixing means of the intersection 12 is impregnated at the intersection 12 of b. The mesh 5 includes a plurality of wire elements 11 which are alternately crossed vertically and entangled with each other due to the curing of the epoxy resin 13.
a and 11b are integrally fastened to each other so that each wire 1
0a and 10b are fixed, and a plurality of intersections 12 are shown in FIG.
The shapes are held in a lattice shape so that predetermined intervals La and Lb are formed in the directions of arrows A and B and the directions of arrows C and D, respectively.

Since the mesh 5 has the above-mentioned structure, the mesh 5 is preliminarily assembled in a lattice shape in a factory or the like and formed into a lattice shape. That is, when the mesh 5 is molded, a plurality of wire elements 11 are assembled in a braided shape to form a fiber bundle, and the wire 1 is formed.
0, but at this time, the wire elements 11a and 11b of the respective wires 10a and 10b whose orientation directions are different from each other.
In a form where the preset cross points 12 cross each other alternately and vertically and entangle each other (that is, by a known method of knitting a fishing net or the like), and the mesh 5 in a form in which the entire shape is a lattice shape, Knit into a specified size. After this, the mesh 5 is impregnated into the epoxy resin 13 which is in the spread state.
Are appropriately cured. Then, in the mesh 5, a plurality of wire elements 11a and 11b which alternately cross each other at the intersection 12 and are intertwined with each other are integrally fastened by the epoxy resin 13, whereby each wire 10a intersecting at the intersection 12 is crossed. With 10b fixed,
A plurality of intersections 12 are formed so as to have predetermined intervals La and Lb in the arrow A and B directions and the arrow C and D directions in FIG. 1, respectively, and are shaped so as to form a lattice shape as shown in FIG. To be done. In this way, the mesh 5 formed in a lattice shape in a form such that the quality thereof is stable in advance by a factory or the like is arranged and supported on the construction site such as the rooftop 1a where the mesh 5 such as the PC frame 3 is disposed. This can be immediately fixed in a predetermined arrangement by simply cutting it according to the shape of the part, and therefore the amount of work at the construction site can be extremely small. Therefore, even when the area of the PC frame 3 or the like is large, the mesh 5 required for the greening structure 2 can be properly arranged therein in an extremely efficient and short time.

By the way, when the mesh 5 is used as a reinforcing member of the PC frame 3 for planting the trees 7 in the greening structure 2, for example, the mesh 5 is preliminarily shown in the arrow A and B directions and the arrow C and D directions in FIG. Sometimes tension is introduced in a contradictory manner. At this time, since each of the plurality of wires 10 forming the mesh 5 has a plurality of resin wire elements 11 formed in a bundle in a braided shape, unnecessary elongation is caused. Sufficient tensile strength can be expressed without causing. In addition to the tension thus introduced to the mesh 5, for example, the tree 7 may be subjected to the wind and may be subjected to a large load that is non-uniform in the plane direction shown in the plane of FIG. At this time, mesh 5
Indicates the direction of extension at each intersection 12 part by arrows A, B
A wire element 11a of a wire 10a oriented in a direction,
The wire elements 11b whose extension direction is directed in the directions of arrows C and D are alternately crossed vertically and intertwined with each other, and since they are fastened and fixed by the epoxy resin 13, the wire elements 11a, 11b are fixed. Becomes a shape to prevent the relative movement of the wires 10a and 10b intersecting at the intersection 12, and the mutual distance L set between the intersections 12 is set.
It is possible to withstand a sufficient non-uniform large load without increasing or decreasing a and Lb.

In the above embodiment, the intersection 1
The example in which the wires 10a, 10b intersecting at the two portions are fastened and fixed by the epoxy resin 13 in a state in which the wire elements 11a, 11b are entwined with each other in such a manner that the wire elements 11a, 11b alternately cross each other vertically, is described. Each of the wires 10a, 10b, etc. of FIG.
With a and 10b intersecting in a form that is simply tied,
The wire element 11 is obtained by impregnating and curing an epoxy resin 13 (not shown) or a curable resin equivalent thereto.
a, 11b are fastened, and the wires 10a, 10
It may be configured to fix b. Also,
The mesh according to the present invention, like the mesh 5 ′ shown in FIG. 5 or FIG.
It does not matter that the wires a, 10b, etc. are not necessarily configured to cross each other one by one.

[0011]

As described above, according to the present invention, a plurality of wires 10a formed by bundling fiber element aggregates such as wire elements 11a, 11b each formed in a string shape,
In a mesh-like reinforcing material having a fibrous body such as 10b and formed by arranging the plurality of fibrous bodies in a grid pattern, intersection points such as intersection points 12 are formed in the mesh-like reinforcing material. The fibrous body is provided in a form where it intersects with each other, and the epoxy resin 13 (not shown) is provided at the intersection.
Since the fixing means made of a resin material such as is provided in the plurality of fibrous bodies so as to be impregnated and cured, the fixing means fastens the fibrous element assembly material and the relative distance between the fibrous bodies intersecting at the intersection points. Movement can be blocked. As a result, the mesh-shaped reinforcing material can maintain a high intersection strength while the intersections are not displaced. Therefore, the mesh-like reinforcing material is impregnated with the epoxy resin liquid or the like in the pre-curing state of the fixing means by impregnating the fibrous bodies intersecting with each other at the intersection point and curing the fibrous element aggregate material to obtain each fibrous element assembly material. By pre-processing the fiber body in such a manner that it is fastened and the fiber body is fixed thereby, the quality of the fiber body can be maintained high and stable, and the fiber body can be efficiently mass-produced. Then, the fibrous body is formed by bundling each of the fibrous element aggregates formed in a string shape by braiding the fibrous element aggregates in a braided shape. Since the shapes are alternately entangled in the upper and lower directions, it is possible to maintain an even greater intersection strength. Therefore, when the mesh-shaped reinforcing material is used as a reinforcing material for a structure requiring a large area and stable high strength, the effect can be more remarkably exhibited.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a mesh-shaped reinforcing member according to the present invention.

FIG. 2 is a plan view showing an intersection portion of the mesh-shaped reinforcing member shown in FIG.

FIG. 3 is a diagram showing an intersecting state of fibers at intersection points of the mesh-shaped reinforcing member shown in FIG.

FIG. 4 is a view showing a conventional mesh-shaped reinforcing material.

FIG. 5 is a diagram showing another embodiment of the mesh-shaped reinforcing member shown in FIG.

FIG. 6 is an enlarged view of an intersection portion of the mesh-shaped reinforcing material shown in FIG.

[Explanation of symbols]

5 ... Mesh-shaped reinforcing material (mesh) 10a, 10b (10) ... Fibrous body (wire) 11a, 11b (11) ... Fiber element aggregate (wire element) 12 ... Intersection point (intersection point)

Claims (1)

[Claims] 1. A mesh-shaped reinforcing material, comprising a plurality of fiber bodies each formed by bundling fiber element aggregates formed in a string shape, wherein the plurality of fiber bodies are arranged in a grid pattern. An intersection point is provided on the mesh-like reinforcing member in a form in which the plurality of fibrous bodies intersect with each other, and fixing means made of a resin material is impregnated and cured in the plurality of fibrous bodies at the intersection points. A mesh-like reinforcing material that is provided in a form that allows it to be formed.