JPS5857585B2 - How to assemble reinforcing bar mesh - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for assembling a reinforcing bar network as slab reinforcement arranged in a block surrounded by beams.

The applicant filed an application with Tamashii in Patent Application No. 96848 filed in 1975 regarding a reinforcing bar assembly method and a reinforcing bar mesh used therein.

This has a mesh-shaped part, and the intersections of the reinforcing bars forming the mesh are welded together. It is characterized by being formed as a lower end reinforcement or an upper end reinforcement.

When installing such a reinforcing bar network as described above, for example, the reinforcement surface is wide and joints are established between a plurality of reinforcing bar networks to be assembled.

In this case, for example, as shown in Fig. 1a, the central part forms a mesh and the intersections of the reinforcing bars forming the mesh are welded, and the first reinforcing bars that do not form a mesh over a predetermined range of opposing end portions are welded. The reinforcing bar net 1 and the second reinforcing bar net 2, which is configured similarly to the first reinforcing bar net but also has a mesh at the end, are
As shown in the figure, following the first reinforcing bar net 1, the end portion of the second reinforcing bar net is placed overlapping the non-mesh portion of the first reinforcing bar net 1, and further following the second reinforcing bar net 2, another reinforcing bar net is placed. The second reinforcing bar network 2' is placed overlapping the non-mesh area of the second reinforcing bar network 2, and this is continued in the same way sequentially until a predetermined area is reached, and the first reinforcing bar network 1 and the second reinforcing bar network 2 are In the overlapping portions of the second reinforcing bar net 2 and the second reinforcing bar net 2', they were tied together and jointed. Note that 3 indicates bundling.

However, in order to assemble the reinforcing bar net by the method described above, there is a drawback that two types of reinforcing bar nets are required as shown in FIGS. 1a and 1b.

Note that the non-mesh portion of the first reinforcing bar mesh that does not have joints is usually located on the beam.

The present invention has been made in consideration of the above-mentioned problems, and it is an object of the present invention to provide a method for assembling a reinforcing bar net that eliminates the above-mentioned drawbacks.The present invention will be explained below using examples.

First, as the reinforcing bar network used in the method of the present invention, only the first reinforcing bar network shown in FIG. 1a is used.

FIG. 3 is a diagram for explaining the present invention in detail.

For example, the case where the reinforcing bar net 1 is extended to the right side as shown in FIG. 3 will be explained. As shown in FIG. Overlap the mesh parts and make the joints.

In this case, the corresponding reinforcing bars A and B of the non-mesh parts of the two reinforcing bar networks 1 and 1' are tied together to form a joint.

This binding is shown at 3. At the time of this binding, reinforcing bars C to form a mesh at the binding position are arranged and tied at the same time.

Also, the relationship between the reinforcing bars 1/ and the other first reinforcing bar network 1'' is the same as the relationship between the reinforcing bar networks 1 and 1', and is extended sequentially to the right over the required area.

Note that the above is a case where the reinforcing bar net 1 is extended to the +X axis side (right side), but when extending the reinforcing bar net 1 to the -X axis side (left side), and when extending the reinforcing bar net 1 to the + y axis side, Rebar net 1-
The same applies to the case of extending to the y-axis side.

Furthermore, when the reinforcing bar net 1 is extended perpendicularly to the ±X-axis side and the ±y-axis side, a reinforcing bar net having non-mesh portions at both corresponding ends may be used.

As explained above, according to the present invention, a mesh is formed in the central part, and other reinforcing bars having the same structure as the said reinforcing bar mesh are attached to the non-mesh portions of the ends of the reinforcing bar mesh, which are welded at the intersections of the reinforcing bars constituting the mesh. When overlapping the non-mesh portions at the ends of the reinforcing bar net and performing a lap joint, at the same time, the reinforcing bars forming the mesh in the non-mesh portion are placed at the binding points of the overlap joint, and these are tied together. Therefore, a mesh is formed in the non-mesh portion by binding for lap joints, and the number of steps for binding does not increase from the number of steps for binding for normal lap joints, improving work efficiency. This also has the effect of requiring only one type of rebar mesh.

To list this in detail: 1. The fact that there are fewer types has the advantage of facilitating physical sorting and installation work.

2. As the number of products decreases, manufacturing costs also decrease to meet the needs of the downstream market.

3. Since the work can be completed by amateurs without the use of brains, labor conditions are improved and the construction period is shortened.

The labor situation referred to here refers to a lack of employment.

(1) Deterioration of work efficiency due to aging population (2) Shortage of skilled workers with thinking ability (3) Increased use of labor and achievement of amateur construction by converting specialized labor into part-time jobs.

[Brief explanation of the drawing]

Figure 1 is a front view of the reinforcing bar network. FIG. 2 is a diagram for explaining a conventional method of assembling a reinforcing bar net. FIG. 3 is a diagram for explaining the reinforcing bar network assembly method of the present invention. 1.1′ and l //; reinforcing bar network, A, B and C;
Rebar.

Claims (1)

[Claims] 1 A mesh is formed in the center, and the non-mesh portion of the end of another reinforcing bar mesh having the same configuration as the said reinforcing bar mesh is attached to the non-mesh portion of the end of the reinforcing bar mesh, which has a mesh in the center and the intersections of the reinforcing bars forming the mesh are welded. A method for installing a reinforcing bar net, characterized in that, when performing overlapping splicing, reinforcing bars constituting the mesh are placed in the non-mesh portion at the same time, and the reinforcing bars are tied together.