JPH0925636A - Reinforcement suspension frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To omit operation, in which a concrete placing surface is smoothed, while enabling reutilization by screwing a clamp to the upper end of a rod- shaped continuous thread stud through a cylindrical nut, installing a frame body at the other end through a nut and suspending a reinforcement from an upper section. SOLUTION: A clamp 3 is mounted on the upper end of a continuous thread stud 1, in which a thread is formed to the whole long-sized iron bar, through a cylindrical nut 2. Nuts 4a, b are screwed into another end. The clamp 3 is fixed onto a scaffolding pipe, and the stud 1 is hung down from the pipe. The nut 46 is removed, the front end of the continuous thread stud 1 is inserted into a hole formed to a frame body 6, and the nut 4b is screwed again and the height of the main body 6 is adjusted by both nuts 4a, 4b. A reinforcement is placed on the main body 6 and assembled. The main body 6 is extracted after completion, and the stud 1 and the clamp 3 are removed. Accordingly, assembly and disassembly are facilitated, reutilization is enabled, and this frame can be largely useful for reducing construction cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestal used for assembling a reinforcing bar of a foundation in a reinforced concrete building.

[0002]

2. Description of the Related Art Reinforcing bars of a foundation in a reinforced concrete building are usually assembled by the following steps. The base part is dug down to a desired depth to remove the earth and sand, and then concrete is poured with a thickness of about 5 cm to solidify the bottom part. After the placed concrete has dried, draw a line (mark out) that will serve as a guideline for assembling the reinforcing bar, assemble the temporary scaffold, and then assemble the reinforcing bar. Surround the assembled rebar with a formwork, pour concrete into it and remove the formwork after it has dried.

In the foundation work consisting of the above steps, the rebar has been conventionally assembled by using a gantry or a rebar scaffold. As an example of a conventional reinforcing bar assembly stand, there is an iron base plate fixed to a cast concrete surface by bolts or the like and a long and narrow column having a T-shaped or Y-shaped reinforcing bar receiving portion provided at the upper end is welded. You can Arrange the desired number of this pedestal on the cast concrete surface, fix it with bolts, etc., arrange the upper reinforcing bars in the reinforcing bar receiving part and assemble them in sequence, and after that, complete the entire reinforcing bar with the formwork Build and pour concrete.

[0004]

Since the conventional frame used as described above supports the reinforcing bar from below, it is embedded in the concrete. Therefore, it is impossible to take out concrete for reuse after placing concrete in the formwork. Furthermore, since it is necessary to fix the required number in advance with concrete nails or anchor bolts, it is difficult to add the reinforcing bars after the assembling of the reinforcing bars, especially the lower reinforcing bars is completed. In addition, there are many restrictions such as being unable to place this cradle in a stable manner unless the discarded concrete surface is flat. The amount of the pedestal that is embedded in each rebar construction and is made disposable becomes considerable, and the amount becomes huge especially as the scale of the building to be built becomes enormous, leading to the skyrocketing construction cost as much as possible. It will be. INDUSTRIAL APPLICABILITY The present invention eliminates these problems of the conventional pedestal, can be reused, can be easily added even after the assembly of the reinforcing bar is completed, and has a flat concrete surface for disposal. It is an object of the present invention to provide a reinforcing bar suspension stand that is not affected by whether or not it is.

[0005]

In order to achieve the above object, the present invention comprises a rod-shaped full screw bolt, a clamp, and a gantry body, and the full screw bolt is screwed with a clamp at its upper end through a tubular nut. , The other end is attached to the gantry body via the upper and lower nuts so as to be able to move up and down.

[0006]

[Operation] After the scaffolding pipe stretched vertically and horizontally for work, the pipe at the horizontal position is screwed with the clamp of the rebar suspension frame fixing the frame body between the nuts below the full screw bolts, and after hanging Reinforcing bars are arranged on the gantry body, and the reinforcing bars are assembled. After this assembly is completed, loosen the lower nut of the gantry body and remove it, and then remove the clamp from the scaffolding pipe. After removing the reinforcing bar suspension from the scaffolding pipe, the surroundings of the assembled reinforcing bars are built with a formwork and concrete is poured.

[0007]

EXAMPLES Examples of the reinforcing bar suspension base according to the present invention will be described below. FIG. 1 is a perspective view thereof, FIG. 2 is a perspective view showing the actual use in assembling the reinforcing bar, and FIG. 3 is a partial sectional view.

Reference numeral 1 designates a full-threaded bolt having a thread formed on the whole of an elongated iron bar. A clamp 3 is attached to the upper end of the elongated iron bar via a tubular nut 2, and nuts 4a and 4b are screwed into the other end. . The clamp 3 can be opened and closed on one side,
On the opening and closing side, a bolt hole is used which can be fixed by a bolt 5a and a nut 5b. The cylindrical nut 2 used for connecting the clamp 3 and the full-screw bolt 1 is formed by penetrating a screw thread in a cylindrical body as shown in FIG. 3, and a bolt penetrating the clamp 3 on the upper side. Is screwed in, and the upper end of the full screw bolt 1 is screwed in on the lower side. Nut 4
The gantry body 6 is attached between a and 4b. Frame body 6
For this, an iron-made member having an L-shaped cross section having a rigidity sufficient for mounting a plurality of reinforcing bars to be described later is used, and projections 7a, 7b for preventing falling of the reinforcing bars mounted on both ends are welded.
It should be noted that the holes 8a and 8b on the gantry body 6 are used when a plurality of hanging portions including the full-screw bolt 1 and the clamp 3 are used.

Next, the actual use of the reinforcing bar suspension according to the present invention having the above construction will be described. After biting the clamp 3 to which the full screw bolt 1 is attached to the scaffolding pipe 9 arranged in the horizontal direction, the bolt 5a and the nut 5b
Ensures that the clamp 3 is fixed to the scaffolding pipe 9,
Suspend from the scaffolding pipe 9. Next, the lower nut 4b screwed into the full-screw bolt 1 is removed, the tip of the full-screw bolt 1 is inserted into the hole provided in the gantry body 6, and then the lower nut 4b is screwed in again. By tightening the nuts 4a and 4b with an appropriate tool such as a wrench or a wrench, the gantry body 6
Is fixed. At that time, the height at which the gantry body 6 is fixed is
It can be arbitrarily adjusted by the upper and lower nuts 4a and 4b. Reinforcing bars 10 are mounted on the gantry body 6 suspended from the scaffolding pipe 9 by being fixed to the all-screw bolts 1 by nuts 4a and 4b, and the reinforcing bars are sequentially assembled on the basis of the reinforcing bars. In addition, 11 is a reinforcing bar 10 ...
・ It is a stirrup wrapped around.

When the assembly of the reinforcing bar is completed by the above,
The lower nut 4b is removed, the gantry body 6 is pulled out from the full-screw bolt 1, the nut 5b is removed, the clamp 3 and the full-screw bolt 1 are removed from the scaffold pipe 9, and then the formwork is assembled and concrete is poured. The clamp 3 and the full threaded bolt 1 removed from the scaffolding pipe 9 can be separated from the tubular nut 2, and the clamp 3 and the tubular nut 2 can also be disassembled.

In the present embodiment, the single screw bolt 1 and the clamp 3 attached to the gantry body 6 are shown as one, but a plurality of bolts can be used depending on the scale of the base.

[0012]

The reinforcing bar suspension according to the present invention having the above-mentioned structure is reusable because it is removed after the reinforcing bars are assembled, so that it can be used in a large amount in the case of a building. Contributes greatly to reducing construction costs. The height of the gantry body can be adjusted by loosening the nut, and since the nut can be rotated even when the reinforcing bar is placed on the gantry body, delicate adjustment is possible. Further, since the reinforcing bar suspension of the present invention is suspended from the upper scaffold unlike the conventional one, it is not affected by the unevenness of the floor surface, and therefore it is not necessary to smooth the discarded concrete surface. Further, since the structure is simple and the screws are used for assembling, the assembling and disassembling are easy, and since the respective constituent parts are compatible with each other, the transportation and the supplying of the parts are easy. Moreover, since all of the constituent parts are ready-made, they can be obtained at low cost. As described above, the reinforced suspension frame according to the present invention has many excellent effects as a frame used in reinforced concrete construction.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire reinforcing bar suspension base according to the present invention.

FIG. 2 is a perspective view showing an actual rebar assembly using the rebar suspension frame according to the present invention.

FIG. 3 is a partial cross-sectional view showing the actual assembly of a reinforcing bar using the reinforcing bar suspension according to the present invention.

[Explanation of symbols]

 1 All screw bolts 2 Cylindrical nuts 3 Clamps 4a Nuts 4b Nuts 6 Stand body 9 Scaffold pyop 10 Rebar

Claims (1)

[Claims] 1. A rod-shaped all-screw bolt, a clamp, and a gantry body. The all-screw bolt has a cylindrical nut attached at its upper end through a tubular nut, and the gantry body at the other end through upper and lower nuts. Reinforcing bar suspension stand that is mounted so that it can be raised and lowered freely.