JPH0135873Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a differential reinforcement device comprising a framework of differential reinforcement.

As is well known, concrete walls not only serve as a partition, but also greatly help in eliminating the deflection of the structure due to horizontal forces, increasing the overall strength and seismic value of the building. Therefore, the various types of reinforcing bars arranged in concrete walls need to be fixed according to the design drawings, and for this purpose, the various types of reinforcing bars must be placed in accurate positions, and even when concrete is poured. They are required not to move unnecessarily. In this way, differential reinforcements are used to accurately position vertical wall reinforcements, as well as to accurately overlap and join upper and lower wall reinforcements. A difference bar 12 is inserted from above the stirrup 11, and generally this difference bar 12 is inserted into a binding part A between the auxiliary reinforcement 13 and the horizontal reinforcement 14, or a binding part B between the upper main reinforcement 15 and the stirrup 11. The configuration was such that they were each tied together and integrated into the stirrup 11. This makes the tying work difficult, especially the tying part A.
It is difficult to tie it together, and since the upper end of the crossbar 12 is an open end, it is extremely dangerous as it could become skewered if a worker accidentally falls over.

In view of the above, the present invention has been developed by constructing a framework of differential reinforcement at the reinforcement position in advance, and by placing the differential reinforcement on the stirrup (beam) or the upper main reinforcement, and having its legs located within the stirrup. Our goal is to provide the following.

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

A number of long transverse bars 1 facing the longitudinal direction of the beam are arranged at appropriate intervals, and a large number of differential bars 2 are provided at predetermined intervals in a direction perpendicular to the transverse bars 1...
In addition, the leg portions 2a of the differential reinforcements 2... project from the lower horizontal reinforcement 1 to constitute the differential reinforcement frame.
The length of this leg 2a... is approximately 1/2 that of the differential bar 2...
It is desirable that the vertical direction (arrow direction) positional relationship between the differential reinforcement 2 and the horizontal reinforcement 1 be such that the horizontal reinforcement 1 is positioned inward as shown in the figure. Then, a predetermined leg portion 2a... of the leg portions 2a... of the differential reinforcement 2...
The chisels (in this embodiment, at intervals of one out of four) are bent at approximately right angles to form bent legs 2'a... If the other leg portions 2a are configured to have an inclination as shown in FIG. 3, the following effects will be produced. Also, horizontal muscle 1... and differential muscle 2
The contact points with ... should be welded by electric welding. In the figure, 4 is a temporary frame such as a wall, beam, floor, etc., 5 is a main reinforcement of the floor, and 6 is a distribution reinforcement.

Next, the usage state of the present invention will be explained based on FIGS. 4 and 5. First, when using the single differential reinforcement shown in FIG. . . . and insert it until the legs 2a are positioned inside the stirrups 8. As a result, the legs 2a... are located within the stirrups 8..., and the other bent legs 2'a... are located within the stirrups 8...
...or placed on the upper main reinforcement 9. Next, by binding the bent leg portions 2'a... and the stirrups 8... or the upper main reinforcements 9, the differential reinforcement device is reliably integrated into the stirrup 8...or the upper main reinforcements 9 at a predetermined position. .
Therefore, unlike conventional methods, it is not necessary to take a lot of effort and time to perform the tying work, and it is possible to attach the differential reinforcements with one touch.
There was a risk that the concrete would peel off, but in this invention, the inclined legs 2 in the frame of stirrup
Since a... is inserted, there is almost no risk of concrete peeling like this. Next, when performing the double differential reinforcement shown in FIG. 5, a typical example will be explained in which the legs 2a... shown in FIG. 2 are straight. In this case, the legs 2a... of one of the differential reinforcement devices are straight. Place the bent legs 2'a on top of the upper main reinforcement 9 so that the legs 2a are located between the stirrups 8 so that they do not collide with the stirrups 8. place When the upper main reinforcing bars 9 and the bent leg portions 2'a are tied together, one of the different reinforcing bars is reliably integrated with the upper main reinforcing bars 9 at a predetermined position. In addition, the leg portions 2a of the other differential reinforcement device are arranged symmetrically with those of the one of the differential reinforcement devices, and are inserted through the gap between the upper main reinforcements 9 and located within the stirrup bars 8. Bent leg portion 2'a...
is placed on the upper main reinforcement 9. Then, if the upper main reinforcement 9 and the bent leg portions 2'a... are tied together, the other difference reinforcement device will be securely integrated with the upper main reinforcement 9 at a predetermined position, thereby forming a double difference reinforcement. It will be done. In the case of a double differential reinforcement, it is also possible to have a configuration in which the straight differential reinforcement devices shown in FIG. 2 are arranged in two rows in advance, and in that case, it is preferable to omit one of the bent legs.

As described in detail above, the present invention provides several transverse reinforcements with a large number of difference reinforcements in the direction perpendicular to them, and the legs of the difference reinforcements protrude from the horizontal reinforcements, and an appropriate number of the reinforcements are provided among the legs. Since this is a transverse reinforcement device with bent legs, the bent legs of this differential reinforcement device can be placed as they are, for example, on top of the upper main reinforcement, and the upper main reinforcement and the bent legs can be tied together. Frequently, the reinforcing bars are properly placed at predetermined positions and do not move when concrete is poured. Therefore, the specified strength can be achieved as designed. Moreover, the bundling work is simple and has good workability. Furthermore, since the horizontal reinforcement is provided at or near the upper end of the reinforcement, there is no risk of skewering, and work safety is ensured. Furthermore, if the legs are tilted, peeling of the concrete can be prevented as described above.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional schematic diagram showing the conventional reinforcement reinforcement arrangement.
FIG. 2 is a perspective view showing an example of the differential reinforcement device of the present invention;
FIG. 3 is a perspective view showing another example, FIG. 4 is a schematic cross-sectional view showing an example of a single differential reinforcement, and FIG. 5 is a schematic cross-sectional view showing an example of a double differential reinforcement. 1... Transverse muscle, 2... Differential muscle, 2a... Leg, 2'
a...bent leg, 4...temporary frame, 8...stirrup, 9...upper main reinforcement.

Claims (1)

[Scope of Claim for Utility Model Registration] () Several horizontal stripes are provided at appropriate intervals, and a number of differential bars are provided at appropriate intervals in a direction perpendicular to the horizontal strips, and the legs of the differential bars are lower than the horizontal strips at the bottom. A difference reinforcing bar is characterized in that the difference reinforcing bar frame body is constructed in a protruding manner, and the leg portions of an appropriate number of the difference reinforcements among the numerous difference reinforcements are bent at approximately right angles to form bent leg portions. Device. () The differential reinforcement device according to claim 1, wherein the legs of the differential reinforcement are configured to be inclined.