JPH0842151A - Reinforcement assembling jig - Google Patents

Abstract

PURPOSE:To facilitate the arrangement of main reinforcements, and accurately enable positioning by installing gable end forms in both end parts of the bar-shaped main reinforcements and receiving stand parts in intermediate parts, and attaching support stands to the receiving stand parts so as to rotatably support roller parts having a flange group in a bar-shaped body in an optional height. CONSTITUTION:Gable end forms 2 to support main reinforcements 1 are arranged in positions corresponding to both end parts of the main reinforcements 1. Two girder plates 2b and 2b are fixed to columns 2a and 2a erected on a base stand A, and engaging stands 8 are horizontally arranged by four sets on a single girder plate 2b, and are arranged in two stages. An inside diameter of the engaging stands 8 formed in a shape divided into tow parts in the axial direction of a cylinder body is made to coincide with an outside diameter of the main reinforcements 1, and shakiness is eliminated when the main reinforcements 1 are placed. Next, receiving stand parts 3 to support the main reinforcements 1 are arranged in intermediate parts of the main reinforcements 1. Roller parts 6 having a flange group 5 at prescribed intervals on bar-shaped body 4 are rotatably supported in an optional height with support stands 7. An interval from adjacent flanges 9 of eight flanges 9 of the flange group 5 is made to coincide with the outside diameter of the main reirmforcements 1, and positions of the main reinforcements are accurately regulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for assembling a reinforcing bar, and more particularly to a jig for erection of a main bar or the like at a predetermined position when, for example, forming a PC beam on the ground.

[0002]

2. Description of the Related Art Generally, when manufacturing a concrete product having a reinforcing bar inside, such as a beam serving as a rigid frame of an upper frame in a reinforced concrete building, the problem is how to install the main reinforcing bar 1 at a predetermined position. is there.

Therefore, conventionally, the method shown in FIG. 6 has been adopted. In this method, concrete is placed in a state where four main bars 1 are arranged above and below, and a girder is assembled on the ground. The main bar 1 is held by a jig in order to make the erected position accurate. First, both ends of the main bar 1 are held by a plate material 30 such as a veneer or an iron plate in which holes corresponding to the number of main bars are drilled. That is, it is held by inserting the end portion of the main bar 1 into the hole.

However, since this alone causes the intermediate portion of the main bar 1 to bend, the iron bar 31 is supported by the support base 32.
Therefore, the main bar 1 is supported to prevent the bending.
Then, the distance between the main bars 1 is adjusted while measuring the main bars 1 supported by the iron bars 31 with another ruler. As a result, the main bar 1 is erected at a predetermined position, and concrete can be poured.

[0005]

However, in the above-mentioned conventional jig, the positions of both ends of the main bar are determined substantially accurately.
There is no restriction on the position of the intermediate portion, and there is a problem in that it tends to be inaccurate. Especially in PC (precast concrete) beams, the lower main reinforcement is buried in concrete, so when setting it on the upper frame, only an error of about 2 mm is allowed, but with the jig mentioned above it is accurate. Have difficulty.

Since it is a fixed jig, for example,
Even if there was a structural change in the middle of the beam, there was the drawback that the position of the main bar could not be set accordingly. Further, although the intermediate portion of the main bar 1 is supported on the iron bar, it is difficult to freely slide the main bar 1 because the iron bar is fixed. For this reason, there is a problem that a lot of manpower is required and the smoothness of the work is lacking.

The object of the present invention is to solve the above-mentioned conventional problems. A reinforcing bar which can obtain an arbitrary structure with high accuracy, has good workability and can significantly reduce manpower. It is to provide an assembly jig.

[0008]

In order to solve the above-mentioned technical problems, the present invention employs a jig for constructing a reinforced concrete member in which a main bar 1 is installed at a predetermined position as follows.

That is, the present invention has a gable form 2 for supporting the main bar 1 at both ends of the bar-shaped main bar 1, and a pedestal part 3 for supporting the main bar 1 in an intermediate portion of the main bar 1. The pedestal portion 3 is composed of a roller portion 6 in which a group of flanges 5 are formed on the rod-shaped body 4 at predetermined intervals, and a support base 7 that supports the roller portion 6 at a rotatable and arbitrary height. It is characterized (corresponding to claim 1).

Further, in the present invention, the end frame 2 is formed with the engaging bases 8 on which the main bars 1 are detachably mounted so as to correspond to the respective main bars 1, and the flange groups 5 are adjacent to each other. A plurality of sets of one set of flanges in which the intervals of the mating flanges 9 match the outer diameter of the main reinforcement 1 are provided, and the intervals between the main reinforcements 1 are set (corresponding to claim 2).

It is to be noted that the number of the engaging bases 8 is required to be the same as that of the main bars 1, and for example, when supporting 16 main bars 1, 16 engaging bases 8 are required on one side.

[0012]

According to the reinforcing bar assembling jig of the present invention, the end form 2 and the receiving part 3 are arranged at predetermined positions, and then both ends of the main reinforcing bar 1 are placed on the engaging table 8. At the same time, the main bar 1 is placed between the flanges 9 to fix the position.

Here, when the main bar 1 is placed, the roller portion 6
Since it rotates freely, it is possible to work alone. That is, the position can be freely changed only by holding one of the main bars 1.

Further, the flange group 5 provided on the rod-shaped body 4 is provided with a pair of flanges in which the distance between the adjacent flanges 9 is made to coincide with the outer diameter of the main bar 1 so that the positioning of the main bar becomes extremely accurate. .

[0015]

EXAMPLES The jigs for assembling a reinforcing bar according to the present invention will be described below in more detail with reference to the examples shown in FIGS.

This embodiment is a jig for constructing the main bar 1 at a predetermined position when the PC beam is formed on the ground. The main bar 1 is rod-shaped, and in principle, a bar longer than the entire length of the beam is used. And the end form 2 which supports the main reinforcement 1 is arrange | positioned in the position corresponding to the both ends of this main reinforcement 1.

As shown in FIG. 4, the gable form frame 2 has two girder plates 2b and 2b fixed to bolts 2c on columns 2a and 2a which are erected on a base A. The girder plate 2b, Two engaging bases 8 are welded to each 2b. The engagement bases 8 are arranged in two rows in which four rows are arranged horizontally with respect to one girder plate 2b, and each engagement base 8 has a shape obtained by dividing a cylindrical body into two in the axial direction. There is. The inner diameter of this cylinder is 1
The outer diameter is the same as the outer diameter, and rattling is eliminated when the main bar 1 is placed.

A cradle part 3 for supporting the main bar 1 is arranged in the middle of the main bar 1. The pedestal portion 3 is composed of a roller portion (sheath pipe) 6 in which a group of flanges 5 are formed on a rod-shaped body 4 at predetermined intervals, and a support base 7 that supports the roller portion 6 at a rotatable and arbitrary height. Has been done.

That is, the flange group 5 is composed of a total of eight flanges 9, and the interval between the adjacent flanges 9 is equal to the outer diameter of the main bar 1. As a result, the position of the main bar 1 is accurately regulated. Then, four sets of two flanges 9 are provided to set the intervals between the main bars 1.

As shown in FIG. 3, the support base 7 has a bearing plate 7a that directly receives the roller portion 6 and a bearing plate 7a.
It is attached to the support base 7 at c. This bearing plate 7a
A concave portion 7b that rotatably supports the roller portion 6 is provided in the. In addition, the support base 7 has a large number of mounting holes 7d.
Is formed so that the bearing plate 7a can be attached at any height.

In use, the end form 2 and the cradle 3 are arranged at predetermined positions, and then both ends of the main bar 1 are placed on the engaging base 8. At the same time, the main bar 1 is placed between the flanges 9 to fix the position. When the main bar 1 is placed, the roller portion 6 rotates freely, so that it is possible to work alone. That is, the position can be freely changed only by holding one of the main bars 1.

Further, when the cross-sectional structure of the beam is changed midway, the position of the main reinforcement 1 is changed. In this case, the main reinforcement 1 is changed at any position simply by changing the position of the bearing plate 7a or adding it. Can be supported.

With the above structure, the main bar 1 can be easily arranged and the artificial number can be reduced by 20%. Moreover, the number of parts of the jig was reduced and the complexity was reduced. In addition, the accuracy is greatly improved and hair wrapping is eliminated. For this reason, the construction period can be redirected to the skeleton process, and construction with a margin can be performed.

[0024]

As described above, according to the jig for assembling a reinforcing bar of the present invention, since the intermediate portion of the main bar is supported on the roller portion, the arrangement of the main bar is facilitated and the number of man-hours is reduced. It has become possible.

Further, according to the reinforcing bar assembling jig of the present invention, the main bar is placed between the flanges to determine the position, so that the positioning of the main bar is extremely accurate and the accuracy of the product is greatly improved. You can

[Brief description of drawings]

FIG. 1 is a front view showing an entire reinforcing bar assembling jig according to an embodiment of the present invention.

FIG. 2 is a plan view partially showing a roller portion in the reinforcing bar assembling jig of the embodiment shown in FIG.

FIG. 3 is a partial side view showing, on an enlarged scale, a support base in the reinforcing bar assembling jig of the embodiment shown in FIG.

4 is a front view of a gable form in the reinforcing bar assembling jig of the embodiment shown in FIG. 1. FIG.

5 is a perspective view showing the overall arrangement of the reinforcing bar assembling jig of the embodiment shown in FIG. 1. FIG.

FIG. 6 is a perspective view partially showing a conventional reinforcing bar assembling jig.

[Explanation of symbols]

 1 main bar 2 gable form 3 pedestal 4 rod-like body 5 flange group 6 roller part 7 support 8 engagement table 9 flange

Claims (2)

[Claims] 1. When forming a reinforced concrete member,
A jig for constructing a main bar at a predetermined position, comprising a gable form for supporting the main bar at both ends of a bar-shaped main bar, and a pedestal part for supporting the main bar in an intermediate portion of the main bar, A jig for assembling a reinforcing bar, characterized in that the part is composed of a roller part in which a group of flanges are formed on a rod-shaped body at predetermined intervals, and a support base that supports the roller part at a rotatable and arbitrary height. 2. The engagement frame for detachably mounting the main bars is formed on the gable form in correspondence with each main bar, and the flange group has an interval between adjacent flanges of the main bars. The reinforcing bar assembling jig according to claim 1, wherein a plurality of sets of one set of flanges having the same outer diameter are provided to set the interval between the main bars.