JPH07217072A - Reinforcing bar and manufacture thereof - Google Patents

Abstract

PURPOSE:To reinforce a structure in an easy manner by bending each of horizontal lines of a reinforcing bar body made up of combining plural pieces of both horizontal and vertical lines into a grating form, and displacing each of vertical lines in the height direction. CONSTITUTION:Respective horizontal lines 12 and vertical lines 13 are formed by each of copper bars. Then these vertical lines 13 are set up grid-likely on the horizontal lines 12, and they are all fixed tight by means of welding. In addition, each flexure 1414 bent upwards at alternate setup spots of the vertical lines 13, is formed in the horizontal lines 12, through which this reinforcing bar 11 is made up in a state that vertical lines 13a set up in the flexure part 14 are positioned upwards to the other adjacent vertical lines 13b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar arranged in a concrete structure to reinforce the concrete structure and a method for manufacturing the reinforcing bar.

[0002]

2. Description of the Related Art As is well known, structures such as concrete walls are reinforced by arranging reinforcing bars therein, for example, reinforcing bars, bamboo bars, or long fiber reinforcing bar substitutes. It was As shown in FIGS. 8 and 9, the reinforcing bar 1 of this type includes a plurality of horizontal wires 2, 2, ...
It is known that the and the vertical lines 3, 3, ... Are integrated in a lattice shape. As shown in FIG.
As shown in FIG. 11, reinforcement is provided when an external force is applied to the structure K by securing a sufficient covering on the surface side of the structure K such as a concrete wall where a tensile force acts and securing the covering. I was doing. Further, as shown in FIGS. 12 and 13, when a tensile force acts on both surfaces of the structure K, two reinforcing bars 1, 1 are provided inside the structure K as shown in FIG. Were arranged in parallel.

[0003]

However, when the structure is thin, it is extremely difficult to arrange the two reinforcing bars 1 and 1 while ensuring a sufficient covering, so that the structure shown in FIG.
As shown in Fig. 1, one reinforcing bar 1 is arranged substantially at the center. However, in such a reinforcing bar, the distance between the front and back sides and the center of gravity of the reinforcing bar 1 cannot be sufficiently set, and therefore this reinforcing There is a problem that the reinforcement by the muscle 1 cannot be effectively operated. Further, even if it is possible to dispose the two reinforcing bars 1 and 1, in the so-called double reinforcing bar in which the two reinforcing bars 1 and 1 are arranged, the reinforcing step is increased by one step. Therefore, there is a problem that the work efficiency is reduced.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a reinforcing bar and a method for manufacturing the reinforcing bar that can very easily reinforce the tensile force applied to the front and back sides.

[0005]

In order to achieve the above object, the reinforcing bar according to claim 1 is a reinforcing bar which is arranged in a structure to reinforce the structure, and which comprises a plurality of horizontal lines. And the horizontal line of the reinforcing bar main body in which the vertical lines are combined in a grid pattern is bent, and the vertical line is displaced in the height direction. The reinforcing bar according to claim 2 is characterized in that, in the reinforcing bar according to claim 1, a linear reinforcing horizontal line that is substantially orthogonal to a vertical line displaced in the height direction is provided. .

Further, the method for manufacturing a reinforcing bar according to claim 3 is a method for manufacturing a reinforcing bar, which is arranged in a structure to reinforce the structure, the method comprising: And the horizontal lines are arranged orthogonally and the horizontal lines of the reinforcing bar main body combined in a lattice shape are bent to displace the vertical lines in the height direction. Further, in the method for manufacturing the reinforcing bar according to claim 4, in the manufacturing method according to claim 3, the reinforcing horizontal line is supplied to the reinforcing bar main body obtained by bending the horizontal line so as to be arranged in parallel with the horizontal line. The reinforcing horizontal line is fixed to the vertical line.

[0007]

According to the reinforcing bar according to the first aspect, when the reinforcing bars are arranged in the structure, the vertical lines are arranged on one surface side and the other surface side of the structure, respectively. By the line
The reinforcement against the pulling force acting on both sides of the structure is surely ensured. According to the reinforcing bar of the second aspect, the reinforcing horizontal line reinforces the reinforcement in the direction orthogonal to the direction in which the vertical line is arranged.

According to the reinforcing bar manufacturing method of the third aspect, the reinforcing bar having the vertical line displaced in the height direction is manufactured by bending the horizontal line. In addition, claim 4
According to the method for manufacturing a reinforcing bar described above, a reinforcing bar in which reinforcement in the direction orthogonal to the vertical direction is strengthened by the reinforcing horizontal line is manufactured.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the reinforcing bar and its manufacturing method of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 11
Is a reinforcing bar of this embodiment. The reinforcing bars 11 are composed of horizontal lines 12, 12 ... And vertical lines 13, 13 ... And the horizontal lines 12, 12 ...
Are arranged in a grid and are fixed by welding. In addition, the horizontal lines 12, 12, ...
Bent portions 14, 14 ... Bent upward are formed at every other arrangement location of 3.
The vertical lines 13a, 13a, ... Arranged on 4, 14, ... Are positioned above the other adjacent vertical lines 13b, 13b ,. That is, the vertical lines 13a and 13b are displaced in the height direction.

A horizontal line 12 which constitutes the reinforcing bar 11
As the vertical line 13, a steel rod of about 0.6 mm to 16 mm is used. Then, according to the reinforcing bar 11, by arranging only one reinforcing bar 11 on the structure K such as a concrete wall, the vertical lines 13a, 13a ...
And the vertical lines 13b, 13b
Can be arranged on the other surface side, and these vertical lines 1
3a, 13a ... And the vertical lines 13b, 13b ... make it possible to ensure that the structure K is reliably reinforced against the pulling force acting on both sides, and in particular, the double structure in which two reinforcing bars are arranged. The reinforcing bar can be suitably used for a thin-walled structure K for which a bar arrangement method is difficult.

Next, a manufacturing method for manufacturing the reinforcing bar 11 having such a structure will be described. First, the structure of a manufacturing apparatus to which the method for manufacturing the reinforcing bar of this embodiment is applied will be described with reference to FIG. In the figure, reference numerals 21 and 21 denote vertical lines 13 and 13 respectively.
... are carriers that have been wound around, and these carriers 21,
A plurality of vertical lines 13, 13 ... Are drawn from 21 and sent to the straightening machine 22. This straightening machine 22
Are to straighten the vertical lines 13, 13 ... By passing the vertical lines 13, 13 ... Into the straightener main body 32 rotated by the motor 31. And
The vertical lines 13, 13 ...
It is sent to the delivery device 23, and this delivery device 23
It is designed to be sent out by a predetermined pitch from. The feeding device 23 has a fixed chuck 33 and a movable chuck 34 that reciprocates as shown by an arrow in the figure. , The vertical lines 13, 13 ... Are held, and the fixed chuck 33 moves the vertical lines 13, 13 when the movable chuck 34 moves in a direction opposite to the feeding direction of the vertical lines 13, 13. It is designed to hold ...

The horizontal lines 12, 12 ... Sent by the horizontal line feeder 24 are welded to the vertical lines 13, 13 ... Sent from the delivery device 23 by the welding device (fixing device).
25 is welded and fixed to form a lattice-shaped reinforcing bar main body, and the horizontal lines 12, 12 of the lattice-shaped reinforcing bar main body are further fixed.
Is a bending device 26 including an upper mold 35 and a lower mold 36.
The reinforcing bar 11 is bent to be the above-described reinforcing bar 11, and thereafter, the reinforcing bar 11 is cut by a cutting device 27 into a predetermined size. That is, according to the method for manufacturing the reinforcing bar 11 using the manufacturing apparatus having the above-described structure, the vertical line 13 is sent out from the carrier 21, straightened by the straightening machine 22 and straightened by the sending device 23 at a predetermined pitch.
In addition, the horizontal wire 12 fed by the horizontal wire feeder 24 is welded and fixed by the welding device 25 to form a lattice-shaped reinforcing bar main body, and the horizontal line 12 of the lattice-shaped reinforcing bar main body
By bending with the bending device 26, the above-mentioned reinforcing bar 11 can be manufactured extremely easily.

The reinforcing bar 11 according to the present embodiment is not limited to the above-described one, but by changing the upper mold 35 and the lower mold 36 of the bending device 26 to change the bending shape of the horizontal line 12. Of course, as shown in FIGS. 3 to 5, it is possible to manufacture a mountain-shaped reinforcing bar 41, a rectangular wave type reinforcing bar 42, a trapezoidal reinforcing bar 43, or the like. Further, in the reinforcing bar 51 shown in FIG. 6, linear reinforcing horizontal lines 52, 52, ... Are arranged between the horizontal lines 12, 12, ... Of the reinforcing bar 11, and these reinforcing horizontal lines 52, 52.
Are welded and fixed to the vertical lines 13a, 13a, ... According to the reinforcing bar 51, the reinforcement horizontal lines 52, 52 ... Reinforce the reinforcement in the direction orthogonal to the arrangement direction of the vertical lines 13, By reinforcing the structure K, reinforcement of the structure K can be secured not only in the longitudinal direction but also in the width direction.

Further, in the case of manufacturing the reinforcing bar 51 of this structure, as shown in FIG. 7, a horizontal wire supplying device 24 and a welding device 25 are provided on the downstream side of the above-mentioned manufacturing device, and the horizontal wire supplying device 24 supplies the wire. The reinforcing horizontal lines 52, 52 ... Created may be welded by the welding device 25. In this case, the cutting device 27 is provided on the most downstream side.

In the above embodiment, the reinforcing bar is arranged on the structure K such as a concrete wall. However, the structure K to which the reinforcing bar is arranged is not limited to the wall, and for example, It can be applied to floors, boards, etc., as well as precast concrete members (thin PC members, P
C / CW, PC slab, PC wall, PC beam, etc.), ALC,
It is also applicable to gypsum boards, iron plates, urethane foam panels, panels made of organic materials, etc. Further, in the above embodiment, the horizontal wire 12, the vertical wire 13 and the reinforcing horizontal wire 5 made of steel rods are used.
Although the example using 2 has been described, these wire rods are not limited to steel rods, and, for example, bamboo bar or long fiber reinforcing bar substitute may be used. In this case, various fixing means other than welding (for example, fixing means using fixing metal fittings) are used as the fixing means for the respective wire members.

[0016]

As described above, according to the reinforcing bar and the method for manufacturing the same of the present invention, the following effects can be obtained. According to the reinforcing bar of claim 1, when the reinforcing bar is arranged in the structure, the vertical lines displaced in the height direction are arranged on one surface side and the other surface side of the structure, respectively. Can
These vertical lines can be used to reinforce the tensile force acting on both sides of the structure, and especially suitable for thin-walled structures where it is difficult to use the double-reinforcement method in which two reinforcing bars are arranged. Can be muscle. Further, as compared with the double bar arrangement method, labor saving and cost reduction of the step of the bar arrangement work can be achieved. According to the reinforcing bar of the second aspect, it is possible to obtain a structure in which reinforcement is strengthened by the reinforcing horizontal line in the direction orthogonal to the direction in which the vertical line is arranged.

According to the reinforcing bar manufacturing method of the third aspect, by bending the horizontal line, when the reinforcing bar is arranged on the structure, the vertical lines are arranged on one surface side and the other surface side of the structure, respectively. It is possible to easily manufacture a reinforcing bar that can be installed to reinforce the tensile force that acts on both surface sides of the structure. According to the reinforcing bar manufacturing method of the fourth aspect, it is possible to easily manufacture the reinforcing bar in which the reinforcement in the direction orthogonal to the vertical direction is strengthened by the reinforcing horizontal line.

[Brief description of drawings]

FIG. 1 is a perspective view of a reinforcing bar for explaining the structure and structure of the reinforcing bar according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a manufacturing apparatus for explaining a method for manufacturing a reinforcing bar according to an embodiment of the present invention.

FIG. 3 is a sectional view of a reinforcing bar for explaining the shape of the reinforcing bar according to another embodiment of the present invention.

FIG. 4 is a sectional view of a reinforcing bar for explaining the shape of the reinforcing bar according to another embodiment of the present invention.

FIG. 5 is a sectional view of a reinforcing bar for explaining the shape of the reinforcing bar according to another embodiment of the present invention.

FIG. 6 is a perspective view of a reinforcing bar for explaining the structure and structure of the reinforcing bar according to another embodiment of the present invention.

FIG. 7 is a schematic configuration diagram of a manufacturing apparatus for explaining a method for manufacturing a reinforcing bar according to another embodiment of the present invention.

FIG. 8 is a plan view of a reinforcing bar for explaining the structure and structure of a conventional reinforcing bar.

FIG. 9 is a cross-sectional view of a reinforcing bar for explaining the structure and structure of a conventional reinforcing bar.

FIG. 10 is a cross-sectional view of a structure for explaining a conventional structure having reinforcing bars arranged.

FIG. 11 is a stress distribution diagram illustrating an external force acting on a structure.

FIG. 12 is a stress distribution diagram illustrating an external force acting on a structure.

FIG. 13 is a stress distribution diagram illustrating an external force acting on a structure.

FIG. 14 is a cross-sectional view of a structure for explaining a conventional structure in which two reinforcing bars are arranged.

FIG. 15 is a cross-sectional view of a structure for explaining a conventional thin-walled structure in which reinforcing bars are arranged.

[Explanation of symbols]

 11, 41, 42, 43, 51 Reinforcing bar 12 Horizontal line 13 Vertical line 24 Horizontal line supplying device 25 Welding device (fixing device) 26 Folding device 52 Reinforcing horizontal line K structure

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryuki Ito 10-20 Nakanoshinmachi, Shijo-Nawate, Osaka Prefecture Toami, Inc.

Claims (4)

[Claims] 1. A reinforcing bar which is reinforced in a structure to reinforce the structure, wherein the horizontal line of a reinforcing bar main body in which a plurality of horizontal lines and vertical lines are combined in a grid pattern is bent, and Reinforcing bar characterized in that the vertical line is displaced in the height direction. 2. The reinforcing bar according to claim 1, further comprising a linear reinforcing horizontal line which is substantially orthogonal to the vertical line displaced in the height direction. 3. A method of manufacturing a reinforcing bar, which is arranged in a structure to reinforce the structure, comprising a plurality of vertical lines and horizontal lines arranged at right angles to form a grid pattern. A method for manufacturing a reinforcing bar, comprising bending the horizontal lines of the combined reinforcing bar main body to displace the vertical lines in the height direction. 4. The reinforcing horizontal line is supplied to a reinforcing bar main body obtained by bending the horizontal line so as to be arranged in parallel with the horizontal line, and the supplied horizontal horizontal line is fixed to the vertical line. A method for manufacturing the described reinforcing bar.