JPH07259342A - Reinforcing bar-binding method and fittings - Google Patents

Abstract

PURPOSE:To improve workability by additionally bringing the vertical iron wire of a reinforcement binding fitting into contact with the vertical reinforcement of a structure, holding the vertical reinforcement by the bent section or curved section of a corner type iron wire fixed onto the vertical iron wire and holding and attaching a horizontal reinforcement by the pawl piece section of a corner type reinforcement under the state, in which the vertical reinforcement and the horizontal reinforcement are brought into contact. CONSTITUTION:Corner type iron wires 1, in which vertical pawl pieces 1c, 1c are bent from the front ends of side leg pieces 1b, 1b, in which planes are formed in a chevron shape or an L shape and which are extended while holding bent sections or curved sections 1a, are fixed onto a linear vertical iron wire 2 by welding, etc., at the intervals of horizontal reinforcements, thus constituting a reinforcement binding fitting A. The vertical iron wire 2 is welded along a vertical reinforcement P projected onto the concrete placing surface of the corner section of a reinforced concrete structure. The horizontal reinforcements Q are held under the state, in which they are brought into contact with the vertical reinforcements P, by the corner type iron wires 1, and the horizontal reinforcements Q are bound in a type that the horizontal reinforcements Q are held and attached by the vertical pawl pieces 1c, 1c. Accordingly, the horizontal reinforcement need not be arranged and allocated, and binding wires for fixing the reinforcements are also unnecessary.

Description

Detailed Description of the Invention

[0001]

[Industrial application] To construct a reinforced concrete structure, it is necessary to assemble the reinforcing bars in a grid pattern. The present invention relates to a binding method of reinforcing bars applied to hold the vertical reinforcing bars and horizontal reinforcing bars in the corner portion of the reinforcing bars thus assembled in a grid pattern and to hold the reinforcing bar spacing of the horizontal reinforcing bars, and a binding metal fitting. is there.

[0002]

2. Description of the Related Art When assembling a reinforcing bar at a corner portion of a conventional reinforced concrete structure, a horizontal reinforcing bar is marked on the vertical reinforcing bar, and the horizontal reinforcing bar is combined at that position to bind the vertical reinforcing bar with a wire having a diameter of about 0.6 mm. And then fixed.

[0003]

Therefore, in order to allocate the position of the horizontal reinforcing bar to the vertical reinforcing bar and to fix the contact point of each reinforcing bar,
There is a problem that it requires a special technique for binding the reinforcing bars, which takes a lot of time and effort. The present invention has been proposed in view of the above problems of the prior art, the objective is to improve the workability and accuracy of the reinforcing bar reinforcement labor saving and shortening the construction period, cost reduction It is a point to provide a binding method of a reinforcing bar and a binding fitting to be achieved.

[0004]

In order to achieve the above-mentioned object, according to the reinforcing bar binding method of the present invention, the flat surfaces are V-shaped or L-shaped and extend on both sides of a bent portion or a curved portion. A corner type iron wire in which a vertical claw piece is bent from the tip of the leg piece,
The linear vertical iron wire in the reinforcing bar binding metal fittings fixed to the linear vertical iron wire at intervals of the horizontal reinforcing bar is attached to the vertical reinforcing bar in the corner portion of the reinforced concrete structure, and the bending of the corner type reinforcing wire at the intersection of the vertical and horizontal reinforcing bars. The vertical bar is held by the curved portion or the curved portion, and the horizontal bar is held by the claw piece.

According to a second aspect of the present invention, the reinforcing bar binding metal fittings are arranged upside down at the horizontal reinforcing bar binding positions of the vertical reinforcing bars facing each other in plan view, and the horizontal reinforcing bars are bound through the metal fittings. The invention of claim 3 relates to a reinforcing bar binding metal fitting used in the binding method, wherein the plane is V-shaped or L-shaped,
A horizontal reinforcing bar holding claw piece is vertically bent from each tip of both leg pieces sandwiching a bent portion or a curved portion that holds a vertical reinforcing bar.

[0006]

Since the present invention is constructed as described above,
The vertical iron wire of the reinforcing rod binding metal fitting is attached to the vertical iron rod such as on the cast concrete surface to stand up, and the vertical iron rod of the structure is held by the bent portion or the curved portion of the corner type iron wire fixed to the vertical iron wire. To place. The reinforcing bar binding metal fittings are arranged at the vertical reinforcing bar positions of the respective corners of the grid-shaped reinforcing bar, and without allocating the horizontal reinforcing bar to the vertical reinforcing bar, the horizontal reinforcing bar and the horizontal reinforcing bar are in contact with each other. Hold the vertical and horizontal rebars together by embracing them with the claws.

According to the second aspect of the present invention, the reinforcing bar binding metal fittings are arranged upside down at the positions of the vertical reinforcing bars which are opposed to each other in a plane, and the reinforcing bars are bound with the horizontal reinforcing bars sandwiched therebetween. Is capable of binding without bending the claw pieces of the reinforcing bar binding metal fitting. Further, the reinforcing bar binding metal fitting according to the present invention has a V-shaped or L-shaped plane, and a horizontal reinforcing bar hugging claw piece is vertical from each tip of both side leg pieces sandwiching a bent portion or a curved portion holding a vertical reinforcing bar. Since it is bent and formed, the method of binding the vertical and horizontal reinforcing bars is effectively performed.

[0008]

The present invention will be described below with reference to the illustrated embodiments. 1 to 4 show an embodiment of the present invention, in which A is a reinforcing bar bundling metal fitting, which has V-shaped or L-shaped planes and has tips of both side leg pieces 1b and 1b extending across a bent portion or a curved portion 1a. The corner type iron wire 1 in which the vertical claw pieces 1c and 1c are bent is fixed to the linear vertical iron wire 2 by welding or the like at intervals of horizontal reinforcing bars.

Then, a columnar bar B assembled in a lattice shape by a longitudinal main bar a and a hoop bar b as shown in FIG. 11, or FIG.
Along with the vertical reinforcing bar P projecting on the concrete placing surface of the corner portion of the beam reinforcing bar C assembled by the beam main reinforcing bar c and the stirrup reinforcing bar d as shown in FIG. 2 by welding or the like, and with the corner type iron wire 1 arranged on the same vertical iron wire 2,
Hold the horizontal reinforcing bar Q in contact with the vertical reinforcing bar P,
Are bound by a pair of vertical claw pieces 1c in the corner type iron wire 1.

P'is an intermediate vertical bar arranged in the middle of the horizontal bar Q and is a vertical claw piece 1c welded to the vertical iron wire 2 of the reinforcing bar binding metal fitting.
Is thus attached at the intermediate portion of the adjacent vertical reinforcing bars P in the horizontal reinforcing bars Q. FIGS. 5 to 8 show the corner type iron wire 1 arranged on the vertical iron wire 2 in the reinforcing bar binding metal fitting A according to the present invention, with the direction of the corner type iron wire 1 being turned upside down.
The corner vertical rebar P that planarly faces the vertical rebar P shown in
5A and 5B in which the corner-type iron wire 1 is arranged in a normal state with the horizontal rebar Q in contact therewith, and the corner-type iron wire is arranged upside down as shown in FIGS. 1 to 4. The vertical and horizontal reinforcing bars P and Q are fixed by the vertical claw pieces 1c in the reinforcing bar binding metal fitting shown in FIG. 8 and the vertical reinforcing bars P and the horizontal reinforcing bars Q are bound in a stable state.

Further, instead of arranging the reinforcing bar bundling metal fitting A upside down, the corner type iron wire 1 is arranged normally.
Both of the vertical claw pieces 1c may be bent and crimped to the horizontal reinforcing bar Q to be fixed. When the diameter of the main reinforcing bar P is 25 mm or more in the column-beam arrangement, the vertical reinforcing wire 2 of the reinforcing bar binding metal fitting A must be arranged at two positions as the diameter of the vertical reinforcing bar P becomes large, to bind the reinforcing bars. Will be difficult.

FIGS. 9 and 10 show an embodiment applied in such a case, and in the drawings, the same parts as those of the above embodiment are designated by the same reference numerals.

[0013]

EFFECTS OF THE INVENTION According to the present invention, a vertical iron wire of a reinforcing bar binding metal fitting attached to a vertical reinforcing bar at a corner portion of a reinforced concrete structure has a V-shaped or L-shaped plane and a bent portion or a curved portion is sandwiched therebetween. The corner-shaped iron wire bent vertical claw pieces is fixed at each horizontal reinforcing bar interval from the ends of the leg pieces extending from the side, and the vertical reinforcing bar is embraced at the intersection of the vertical and horizontal reinforcing bars. Since it is designed to hold the reinforcing bars, it is not necessary to assign the reinforcing bars to the horizontal reinforcing bars, and by bending the claw pieces lightly, the horizontal reinforcing bars can be fixed, eliminating the need for a conventional reinforcing bar fixing wire. No special technology is required to do so.

As described above, according to the present invention, the number of man-hours for reinforcing bar is reduced, the labor is reduced, the work period can be shortened, the cost can be reduced, and the accuracy of reinforcing bar can be maintained, so that the quality can be improved. Be useful. According to the second aspect of the present invention, the reinforcing bar binding metal fittings are turned upside down and arranged at the corner reinforcing bar positions which face each other in plan view, whereby the fixing of the horizontal reinforcing bars is strengthened and the disorder of the reinforcing bar arrangement can be eliminated.

Further, the reinforcing bar binding metal fitting according to the present invention has a V-shaped or L-shaped plane, and a horizontal reinforcing bar holding claw piece from each tip of both side leg pieces sandwiching a bent portion or a curved portion holding a vertical reinforcing bar. By vertically bending, the method of binding the reinforcing bars can be smoothly performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a vertical and horizontal reinforcing bar binding portion using a reinforcing bar binding metal fitting according to the present invention as viewed from the inside.

FIG. 2 is a plan view of FIG.

FIG. 3 is an outside elevational view showing a binding portion of vertical and horizontal reinforcing bars.

FIG. 4 is an inside elevational view showing a binding portion of vertical and horizontal reinforcing bars.

FIG. 5 is a perspective view showing a binding portion of vertical and horizontal reinforcing bars when the reinforcing bar binding metal fitting is turned upside down.

FIG. 6 is a plan view of FIG.

7 is an inside elevational view of FIG.

FIG. 8 is an outer elevation view of FIG.

FIG. 9 is a plan view showing another embodiment of the present invention.

FIG. 10 is an elevational view of FIG.

FIG. 11 is a perspective view of a column reinforcing bar.

FIG. 12 is a perspective view of a beam reinforcing bar.

[Explanation of symbols]

 A Reinforcing bar binding bracket B Column rebar C Beam rebar P Vertical rebar Q Horizontal rebar a Vertical main bar b Hoop bar c Beam main bar d Stirrup bar 1 Corner type iron wire 1a Bending or bending part 1b Side leg piece 1c Vertical claw piece 2 Vertical iron wire

Claims (3)

[Claims] 1. A corner-type iron wire in which a plane is V-shaped or L-shaped, and a vertical claw piece is bent from the tips of both side leg pieces extending with a bent portion or a curved portion sandwiched therebetween is formed into a straight vertical iron wire. The linear vertical iron wires in the reinforcing bar binding metal fittings that are fixed at each reinforcing bar interval are attached to the vertical reinforcing bars in the corners of the reinforced concrete structure, and the vertical reinforcing bars are bent or curved at the intersections of the vertical and horizontal reinforcing bars. And a horizontal reinforcing bar with the claw piece. 2. The reinforcing bar binding according to claim 1, wherein the reinforcing bar binding metal fittings are arranged upside down at the horizontal reinforcing bar binding positions of the vertical reinforcing bars which are two-dimensionally opposed to each other, and the horizontal reinforcing bars are bound through the metal fittings. Method. 3. A horizontal rebar hugging claw piece is vertically bent from each tip of both side pieces sandwiching a bent portion or a curved portion holding a vertical rebar, the plane being V-shaped or L-shaped. Reinforcing bar binding metal fittings.