JPS5911555Y2 - Auxiliary support device for reinforcing bar assembly - Google Patents

Description

[Detailed description of the invention] This invention is an auxiliary support device for reinforcing bars used to support reinforcing bars when assembling underground beam reinforcing bars and column reinforcing bars, especially fixed to base concrete. The present invention relates to an auxiliary support device for assembling reinforcing bars, which is a combination of a base member, a reinforcing bar supporting member, and a column member that connects the two.

A conventional support device of this type is disclosed in Japanese Patent Application Laid-open No. 541209, for example.
As described in Publication No. 17, the column member consists of an upper column and a lower column that are telescopically connected, the upper column is fixed to the reinforcing steel support member, and the lower column is fixed to the base member. Ta.

Therefore, the reinforcing bar support height can be adjusted arbitrarily within the allowable range, but the entire device including the telescopic support member must be manufactured in a factory, which is expensive even though it is a device for burying. It was also inconvenient to transport due to its large size.

Furthermore, it was necessary to produce and prepare in advance several types of expandable and contractible support members with different allowable expansion and contraction ranges.

The present invention focuses on the fact that construction sites have reinforcing bars (D bars) of appropriate thickness that can be used for the above-mentioned support members, and their cutters.
By utilizing these, an auxiliary support device for assembling reinforcing bars is provided which can solve the conventional problems as described above.

An embodiment of the present invention will be described below based on the attached drawings.
In FIG. 1, 1 is a base member fixed to base concrete, and 2 is a reinforcing steel support member.

The base member 1 is made of reinforcing bars (D
A cylindrical part 4 into which the lower end of a bar 3 cut into a predetermined length is inserted and fixed, an anchor plate 5 fixed to the lower end of the cylindrical part 4, and an embedding depth fixed to the middle of the cylindrical part 4. It has a flange 6 (a pin, any other thing, or a mark) for regulating the width, and a bolt 7 for fixing to the inserted rod-shaped member 3.

The reinforcing bar support member 2 includes a cylindrical portion 8 into which the upper end of the rod-shaped material 3 is fitted and fixed, and a hairpin 9 that is directly welded to the upper end of the cylindrical portion 8 in a T-shape and has a length capable of supporting the reinforcing bars at both ends. , bolts 1 and 10 for fixing the rod-shaped member 3 fitted into the cylindrical portion 8.

As shown in FIGS. 2 and 3, the above-mentioned support device supports a portion of the base member 1 below the burial depth regulating flange 6 when placing the base concrete 14.
4 and fix the base member 1 at regular intervals so that the cylindrical part 4 is in a vertical state. Next, the lower end of the rod-shaped member 3 cut to a predetermined length is inserted into the cylinder of the base member 1. 4 and fixed with a fixing bolt 7, and then the cylindrical part 8 of the reinforcing bar support member 2 is fitted onto the upper end of the bar 3 and fixed with a fixing bolt 10.

Once the support device has been erected as described above, the underground beam upper main reinforcement 15 is placed and tied on top of the hairpin reinforcement 9, and the lower support reinforcement 17 is supported by the hoop reinforcement 16 which is externally fitted and tied to the upper main reinforcement 15. At the same time, the lower main reinforcement 17 and the hoop reinforcement 16 are tied together to assemble the underground beam reinforcement structure 18.

This reinforcing steel structure 18 is supported by each support device, and a concrete form is constructed and concrete is poured in the conventional manner to construct an underground beam in which the reinforcing steel structure 18 and each support device are buried.

As shown in FIG. 4, a base plate 20 having bolt holes 19 (preferably long holes) is fixed to the cylindrical portion 4 of the base member 1, and anchor bolts buried in the base concrete 14 in advance are fixed to the cylindrical portion 4 of the base member 1. Alternatively, the base member 1 may be fixed onto the surface of the base concrete 14 via the base plate 20 using a honorain anchor or the like.

As shown in Fig. 5, the above-mentioned support device is a column reinforcement
It can also be used to support 1.

In this case, as shown in FIG. 5 and FIG.
4 are directly welded together.

And at this kanzashi muscle 24, one of the hoop muscles 25 25
The column reinforcing bar structure 21 is assembled by supporting and tying the hoop bar 25a and tying the main bar 26 to the hoop bar 25a.

The auxiliary support device for assembling reinforcing bars of the present invention can be implemented and used as described above, and the base member and the reinforcing bar supporting member are not connected by an extensible column whose both ends are fixed to both. Since both ends of the rod-shaped material were fitted and fixed into the cylindrical parts provided on the base member and the reinforcing bar support member, the two members were connected, so that the rod-shaped material could be a suitable material such as reinforcing bars (D-bar) at the factory site. It is also possible to cut the rod-shaped material into a predetermined length and use it, and although the reinforcing bar support height can be set arbitrarily by adjusting the cutting length of this rod-shaped material, it is not possible to use telescopic supports like conventional products. It can be used safely without any fear of the reinforcing bar support member falling due to insufficient tightening or loosening of the length fixing bolts (fixing bolts} 7.10 may be omitted).

In addition, it is only necessary to produce the base member and reinforcing steel support member in a factory.
Since only one type of these members needs to be prepared regardless of the reinforcing bar support height, the system can be provided to users at low cost, and transportation and storage costs can also be reduced.

In addition to reinforcing bars, pipes and the like can also be used as the bar material.

Moreover, according to the present invention, the reinforcing bar support member has pins 9, 2 at the upper end of the cylindrical portion 8, which are long enough to support the reinforcing bars at both ends.
4 is directly welded into a T-shape, for example, a cylinder is fixed to the upper end of the cylinder part 8 in a T-shape, the hairpins are inserted through this cylinder, and fixing bolts, etc. Although the structure is extremely simple and can be implemented at a very low cost compared to the case where the hairpins are fixed with By cutting off the excess length, it can be used to accommodate any reinforcing bar support width.

In addition, instead of cutting and removing the excess length at the site, the cylindrical part 8 is rotated horizontally with respect to the rod-shaped material 3, and the hairpin bars 9 and 24 are oriented diagonally to the supporting reinforcing bars, thereby removing the reinforcing bars. Hairpins 9, 2 whose length is greater than the support width
4 can also be used without unduly protruding beyond the supporting reinforcing bars.

In other words, it seems necessary to construct the hairpins 9 and 24 so that they can be replaced with hairpins of any length, but in reality, hairpins of a fixed length as in the present invention are necessary. Even if the stripes 9 and 24 are welded to the cylindrical portion 8, it can be used without any inconvenience.

In view of this point, the present invention has been able to provide an auxiliary support device for assembling reinforcing bars that has a simple structure and is convenient to use.

[Brief explanation of the drawing]

Fig. 1 is an exploded front view of one embodiment of the present invention, Fig. 2 is a longitudinal sectional front view showing an example of its use, Fig. 3 is a side view of the same, and Fig. 4 is a partially cutaway front view showing a modified example. FIG. 5 is a front view showing another embodiment in use, and FIG. 6 is a cross-sectional plan view thereof. 1...Base member, 2...Reinforcement support member,
3... Rod-shaped material, 4, 8... Cylindrical part, 5.
...Anchor rate, 7,10...
Fixing bolt}, 9.24...Kansajiri, 1
4...Base concrete, 18...
Reinforced structure for underground beams, 21...Reinforced structure for columns.

Claims (1)

[Scope of utility model registration request] The base member has a base member fixed to the base concrete and a reinforcing bar support member, the base member has a cylindrical part into which the lower end of a rod-shaped material such as a reinforcing bar cut to an appropriate length is inserted and fixed, and the reinforcing bar supporting member has a reinforcing bar-like material cut to an appropriate length. An auxiliary support device for assembling reinforcing bars, which comprises a cylindrical part into which the upper end of a material is fitted and fixed, and pinhole bars that are directly welded to the upper end of the cylindrical part in a T-shape and are long enough to support the reinforcing bars at both ends.