JPS5837464B2 - Wall reinforcing bar assembly method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for assembling wall reinforcing bars in concrete walls, and in particular, in so-called blind walls that do not have openings, the strength of the wall reinforcing bars is improved. The objective is to achieve extremely simple, quick, accurate, economical construction with good workability while maintaining the same quality.

Concrete IJ } Walls in buildings are constructed by incorporating wall reinforcing bars between the columns, setting up formwork, and pouring concrete IJ. Conventionally, these wall reinforcing bars were installed at the construction site. Each piece was assembled by hand by weaving it vertically and horizontally and tying it together.

Therefore, the reinforcing bars must be assembled manually on site, all the intersections of each reinforcing bar must be tied together to keep them immovable, and the opposing formwork is required. In order to avoid the separators installed in between and place the reinforcing bars, bending must be performed at that part, etc., which requires time and effort by skilled workers, and the accuracy is reduced due to misalignment of the mesh during assembly. There were many inconveniences due to the lack of.

In particular, the bending process to avoid fixed separators is not only time-consuming, but also causes problems in terms of strength as the reinforcement network collapses.

The present invention was devised in view of the above-mentioned disadvantages, and involves first binding reinforcing bars vertically and horizontally to a predetermined mesh width, and then tying this twisted reinforcing bar network along a predetermined process at the work site. This relates to the wall reinforcement construction method for assembling.

EXAMPLES Construction examples of the present invention will be described below with reference to the drawings.

First of all, what is shown in Fig. 1 is an inner wall without an opening, and 1 is a lower beam, 2 is a column, and 3 is an upper beam. Surrounded by these is the wall space formed. Reinforcing bars are placed on the wall, the formwork P is fixed, and concrete is poured to construct the wall.

In the case of the embodiment shown in Fig. 1, two reinforcing bar nets 4 are installed in this wall space, but these reinforcing bar nets 4 are prepared in advance at a factory or the like in accordance with the standards determined according to the structure to be constructed. It is constructed by welding reinforcing bars together in a mesh pattern vertically and horizontally.
The horizontal reinforcement 4a is extended to one side, which will be located on the column 2 side, and the fixing bar 4b is made to protrude, and the fixing bar 4b is inserted into the column 2 to fix the reinforcing bar net 4.

In this case, the two reinforcing bar nets 4 are partially overlapped with each other in the center of the wall space and are tied together and fixed at the main parts.

By the way, the opposed formworks P that form the wall space are kept at a distance from each other by separators, but these separators become an obstacle when assembling the reinforcing bar net 4 configured as in the present invention. .

Therefore, here, only holes for separators are bored in the formwork P in accordance with the mesh, and the separators are accurately attached after the reinforcing bar mesh 4 is arranged.

The above-described Figure 1 shows what is called post-assembly, in which the upper beam 3 is assembled after the wall reinforcement is arranged, and since the upper beam 3 will be installed later, there will be no obstructions upward when installing the reinforcing bar net 4. There is nothing to be done.

Therefore, in the reinforcing bar network 4 here, in addition to the fixing bars 4b obtained by extending the horizontal bars 4a, the vertical bars 4d can be extended upward, and the above-mentioned upper joint bars 4e can be formed in advance to protrude. This simplifies the process of connecting the building to the upper floor.

Next, FIG. 2 shows an embodiment of the outer wall having no openings.

Generally, contraction joints are provided in the outer walls of concrete buildings, so the wall space formed by the lower beam 1, columns 2, 2, and upper beam 3 is further divided by the vertical joint 5. A reinforcing bar net 4 having the above-mentioned configuration is placed in each of the divided spaces.

Various ways of arranging the reinforcing bar net 4 can be considered as shown in FIG. 3, but the reference numeral 6 located at the joint 5 in FIG. It is.

In addition, the reinforcing bar net 4' located between the joints 5 and 5 is connected to the column 2.
Since no fixing is required with the fixing strip 4b, no fixing strip 4b is provided.

This is also the case in FIGS. 3B and 3C, where the adjacent reinforcing bar networks 4 and 4' are bound together by overlapping each other at the side ends.

The present invention has the structure described above.

When arranging reinforcement for concrete blind walls, we use a reinforcing bar network pre-formed in a factory, etc., so there is no need to assemble reinforcing bars one by one on site, which saves labor. Since assembly and bundling can be performed accurately and reliably along the lines, there is no chance of reinforcing bars shifting during concrete pouring.

Moreover, there is no need to consider the position of the separators when arranging reinforcement, so there is no need to deform the structure of the reinforcing bar network.
The structural strength required for wall reinforcement can be maintained sufficiently.

Moreover, because of this net shape, it is sufficient to bind the reinforcing bars to each other only in the main parts to the extent that the reinforcing bars do not move during concrete pouring.

Therefore, according to the method for installing wall reinforcing bars according to the present invention, it is possible to achieve wall reinforcement of a concrete IJ-concrete wall in an extremely simple, quick, accurate, and economical manner while maintaining strength.

[Brief explanation of the drawing]

The drawings show a state in which a reinforcing bar network is assembled in a wall space, and FIG. 1 is a front view of the inner wall, FIG. 2 is a front view of the outer wall, and FIG. 3 is a plan view showing embodiments of the outer wall. It is. Explanation of symbols, 1...Lower beam, 2...Column, 3
... Upper beam, 4... Rebar net, 4a...
・・Transverse muscle, 4b・・Fixed muscle, 4e・・・・
Upper floor joint reinforcement, 4d...Vertical reinforcement, 5...Joint, 6...Joint reinforcing bar network, P...Formwork.

Claims (1)

[Claims] 1 In the method of assembling reinforcing bars for concrete walls, reinforcing bars are tied in advance in a predetermined mesh shape in the wall space formed by columns and lower beams, and horizontal bars are extended to one side to serve as anchor bars and vertical bars. At least two or more reinforcing bars are extended upward and used as joint bars to be tied to the reinforcing bar network on the upper floor, and anchor bars are inserted and fixed into the columns to incorporate them, and the joint bars penetrate above these reinforcing bars. A method for assembling wall reinforcing bars that is characterized by the provision of upper beams.