JPH0712436Y2 - Foundation base muscle positioning jig - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a retainer for a base reinforcement used when constructing a reinforced concrete foundation of a building.

[Prior Art] As is well known, the foundation of this construction is a structure in which a foundation is placed and fixed on the foundation to maintain the horizontal position of the building, and foundations are reinforced or unreinforced. , Assemble the formwork and place concrete to construct. At present, in the case of a general reinforced concrete fabric foundation,
After root cutting according to the arrangement of the building, laying split stones in the root cutting groove and laying it, and then throwing away concrete to make it flat, the waste concrete surface is made with basic core ink, base line ink, and base form ink. After taking out and attaching the base formwork, the base muscles are arranged and the standing muscles are attached to the base muscles.

In such reinforced concrete foundations, etc., the minimum value of the distance from the surface of the reinforcing bar to the surface of the concrete covering it, that is, the covering thickness, is determined by law.
In the case of base reinforcement, when arranging the base reinforcement on the concrete surface according to the foundation core ink etc., place a cube-shaped spacer block with a side of 6 cm under the base reinforcement and set the required height from the waste concrete surface. I try to keep it.

[Problems to be solved by the device]

However, the vertical bars of the standing bars that are assembled to the base bars and the anchor bolts that are attached to the vertical bars do not have the predetermined positions in the width direction so that the base bars of the standing bars can be correctly formed. Must be placed correctly. On the other hand, the above-mentioned spacer block is to simply place the base rebar on the concrete surface to maintain the base rebar at a predetermined height. Even the position was not regulated. Therefore, in the work of assembling the rebar according to the black wire of the foundation core etc.,
Due to individual differences among workers, there were variations in the positional accuracy of the basic rebar, and there were often differences in workability.

In view of the above situation, the present invention is a positioning jig for a basic base muscle, which has good workability without being caught by individual differences among workers, and which can accurately hold the base muscle at a predetermined height and width direction position. It is intended to provide.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is a jig for holding a base reinforcement on a waste concrete surface of a root cutting groove at the time of foundation construction of a building. And a center notch is formed on the supporting leg to align with the basic core ink made on the abandoned concrete surface, and a predetermined width direction of the upper edge of the plate-shaped body with reference to the position of the center notch. (EN) A positioning jig for a basic base muscle, in which a receiving groove for supporting the base muscle at a predetermined height position is formed at an interval position.

[Action]

The basic base reinforcing bar positioning jig of the present invention having the above-mentioned configuration determines the position of the central cutout according to the black line of the basic core black ink marked on the discarded concrete surface before arranging the base bar, and the appropriate distance is formed at right angles to the black line. I will make a lot of them in a row. Then, by mechanically inserting the base muscles into the receiving groove of the upper edge of the basic base muscle positioning jig, the base muscles can be automatically arranged and held at predetermined mutual spacing positions and predetermined height positions. .

〔Example〕

Hereinafter, details of the foundation base muscle positioning jig of the present invention will be described with reference to the drawings showing an embodiment thereof.

FIG. 1 is a perspective view of a foundation base muscle positioning jig of an embodiment of the present invention, and FIG. 2 is a perspective view for explaining a situation of a foundation to which the foundation base muscle positioning jig of FIG. 1 is applied.

As shown in FIG. 1, the foundation base streak positioning jig 1 of the present invention is formed of a steel plate long in the width direction, and the lower part is divided into 3 parts in the width direction and alternately bent at substantially right angles to the opposite side. Support legs 1a, 1b, 1c are formed so that they can stand vertically on a flat surface. The notches 2 and 2'between the supporting legs are formed for convenience of this bending process.

Further, receiving grooves 3, 3 ', 3 "are formed at predetermined intervals at three positions on the upper edge of the base base muscle positioning jig 1. The receiving grooves 3, 3', 3" are V-shaped. Formed as a groove
The center distances l and l'of the receiving grooves 3,3 ', 3 "are adjusted to the center distances of the base muscles 4,4', 4" to be supported,
Height h from the bottom of each supporting leg 1a, 1b, 1c to the receiving groove 3, 3 ', 3 ",
The diameters of the base muscles 4, 4 ', 4 "which also support h', h" are also taken into consideration to set the desired bearing height.

The four windows 5, 5 ', 5 ", 5 formed on the plate surface of the foundation base reinforcement positioning jig 1 are for improving the surroundings of concrete when placing concrete. The shape, position, etc. may be set arbitrarily as long as the rigidity can be maintained to the extent that the support of the base muscles 4, 4 ', 4 "of the basic base muscle positioning jig 1 is not hindered. Further, a V-shaped center cutout 6 is formed on the outer edge of the central support leg 1b of the foundation base reinforcement positioning jig 1, and the foundation base reinforcement positioning jig 1 aligns the center notch 6 with the foundation core position. Can be placed. That is, the widthwise interval l ″ between the central position of the central cutout 6 and the central position of the central receiving groove 3 ′ is accurately set together with the receiving groove central intervals l, l ′. 1a, 1b, 1c are each provided with a nail hole 7 (not shown in the drawing), and when it is necessary in the work of arranging or placing concrete, concrete nails are struck to form the foundation base locating jig. 1 is discarded so that it can be fixed to the concrete surface.

As described above, the present invention is a jig for locating a basic base bar which is reasonably made of a plate material. The flat surface on which the foundation base muscle positioning jig 1 is applied is, as shown in FIG.
It is constructed by laying crushed stones 10 in the root cutting groove 9 side by side and compacting them, and then throwing out the discarded concrete 11, and the flat surface is provided with the basic core ink 12 and the base form ink not shown. To be done. Next, in this basic core ink 12, the center cutout 6 of the support leg 1b
, And a plurality of basic base reinforcement positions are arranged at right angles to the basic core ink 12 by arranging jigs 1 and 1'side by side, and fixing with concrete nails appropriately, and then each base reinforcement 4, 4 ', 4 " Insert into the respective receiving grooves 3, 3 ', 3 ".

The panel with the base reinforcements 4, 4 ', 4 "arranged in this way has the vertical reinforcements 13 of the rising reinforcements attached to it, and the anchor bolts 15 and 15's attached to the transverse reinforcements 14 of the base concrete, and then the riser. Concrete was assembled after assembling the required formwork (not shown), and the
16 is completed. Foundation base muscle positioning jig 1 is the base muscle
It is buried in the base concrete while supporting 4,4 'and 4 ".

As described above, the base rebar is correctly placed and held at the predetermined position by the efficient work of simply inserting it into the respective receiving grooves of the foundation base rebar positioning jigs juxtaposed on the concrete surface for discarding. As a result, all the foundation rebars have an appropriate concrete cover thickness, and the anchor bolts can be correctly placed in the foundation core position.

In the illustrated embodiment, the receiving grooves 3, 3 ', 3 "are formed in three places, and the central receiving groove 3' is displaced in its width direction position from the basic core, that is, the position of the central cutout 6. Is so that the longitudinal ribs 13 of the standing-up muscles to be mounted on the supporting base muscles 4 ', and hence the anchor bolts 15, are located at the foundation core position. The height position of the receiving groove 3'is also the constitutional state of the base muscles. (See FIG. 2) The height is different from that of the receiving grooves 3, 3 "at both ends. However, the foundation base muscle positioning jig 1 of the present invention is not limited to this, and the number, position, and height of the receiving grooves are set according to the construction standards of the foundation muscles of each contractor and manufactured. be able to.

The foundation base muscle positioning jig of the present invention is not limited to steel, but other metal plate, hard plastic plate, wood plate, or any other rigid plate can be used. Further, the supporting leg may not be formed as a single body with the plate surface of the main body, but may be formed as a single body by welding another material.

[Effect of device]

As described above, according to the present invention, when constructing a building foundation, variations in the positional accuracy of the base muscles due to individual differences among workers, and thus the basic muscles and anchor bolts are suppressed, the positional accuracy is improved, and the bar arrangement is improved. The effect of improving the workability of is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a foundation base muscle positioning jig of an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a foundation provided with the foundation base muscle positioning jig of FIG. 1 ... Foundation base reinforcement positioning jig 1a, 1b, 1c ... Support leg 3, 3 ', 3 "... Receiving groove 4, 4', 4" ... Base reinforcement 6 ... Center cutout 9 ... Root cut groove 11 ... Waste concrete 12 … Basic core ink 15,15 ′… Anchor bolt 16… Basic

Claims (1)

[Scope of utility model registration request] 1. A jig for holding a base reinforcement on a waste concrete surface of a root cutting groove when constructing a foundation of a building, wherein a lower part of a plate-like body is bent to form a self-supporting supporting leg, and the supporting leg is provided on the supporting leg. A central notch for aligning with the basic core ink provided on the abandoned concrete surface is provided, and a predetermined height is provided at a predetermined width direction interval position of the upper edge of the plate-like body with reference to the position of the central notch. A base base reinforcement positioning jig, characterized in that a receiving groove for supporting the base reinforcement at a position is formed.