JPH06193201A - Reinforcing method for reinforced wire mesh used in concrete structures - Google Patents

Abstract

(57) [Abstract] [Purpose] Reinforcing wire mesh used for concrete structures that can safely perform the reinforcing work of reinforcing bar wire mesh used inside concrete structures such as floors, and further improve the efficiency of reinforcing bar work. To provide a method of arranging. [Structure] A method of arranging a reinforcing bar wire mesh used in a concrete structure is as follows.
Placing either the vertical rebar 21 or the horizontal rebar 20 forming 9 on the lower spacer 10 to float the lower rebar wire net 19 by a predetermined height, and arrange the upper spacer 11 on the lower spacer 10. The step of providing and the upper spacer 10
Vertical reinforcing bar 21 or horizontal reinforcing bar 2 which forms upper reinforcing bar wire mesh 22 on
No. 0 is placed, and the upper rebar wire net 22 is floated above the lower rebar wire net 19 by a predetermined height to arrange the bars.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for arranging a reinforcing wire mesh used in a concrete structure.

[0002]

2. Description of the Related Art Conventionally, a method of arranging reinforcing steel wire mesh used in the interior of a concrete structure such as a floor in two steps is shown in FIG.
As shown in FIG. 1, first, the spacer 71 is arranged on the mold 70, and the lower rebar wire mesh 72 is mounted on the spacer 71. Then, the spacers 73 having long legs are arranged on the mold 70, the spacers 73 are moved so as to be located below the upper reinforcing bar wire nets 74, and then the upper reinforcing bar wire nets 74 are arranged on the spacers 73. Was there.

[0003]

However, according to the conventional method of arranging the reinforcing wire mesh used inside the concrete structure such as the floor, the upper reinforcing wire mesh 74 and the lower reinforcing wire mesh 72 are arranged.
In order to float and arrange the bar at a predetermined height from above, it is necessary to use the spacer 73 having long legs and a high center of gravity, and the spacer 73 easily falls during the bar arranging work of the upper rebar wire net 74, There was a problem that it was dangerous. Further, the spacer 73 has to be moved so as to be positioned below the upper rebar wire mesh 74, which causes a problem of poor work efficiency. The present invention has been made in view of such circumstances, it is possible to safely perform the reinforcing work of the reinforcing bar wire mesh used inside the concrete structure such as the floor,
Another object of the present invention is to provide a method for arranging reinforcing wire mesh used in a concrete structure that enhances the efficiency of reinforcing work.

[0004]

A method according to the above-mentioned object.
The method for arranging a reinforcing steel wire mesh used in the concrete structure described above includes a plurality of bending muscles having leg portions in which both sides of a reinforcing bar of a predetermined length are bent downward, and the plurality of bending muscles are erected at predetermined intervals. Then, a plurality of lower spacers, which are fixed by passing supporting muscles to each other of the leg portions located on both sides of the plurality of flexor muscles, are arranged, and either a vertical rebar or a horizontal rebar forming a lower rebar wire mesh is formed. Is placed on the support bar of the lower spacer and the lower rebar wire mesh is floated by a predetermined height, and a plurality of lower rebars are arranged side by side substantially horizontally at the lower part, and the upper part is positioned above the middle of the lower rebars. Reinforcing bars are provided substantially parallel to the lower reinforcing bars, and upper spacers that fix one and the other of the lower reinforcing bars and the upper reinforcing bars through connecting reinforcing bars, respectively, are provided on the bending bars of the lower spacer. And forming the upper rebar wire mesh on the upper rebar of the upper spacer Vertical reinforcing bars or by placing one of the lateral reinforcing bars, wherein the rebar wire mesh float predetermined height from the bottom reinforcement wire mesh is configured to have a step of distributing the muscle that. here,
The vertical reinforcing bars or horizontal reinforcing bars forming the lower reinforcing bar wire mesh include vertical reinforcing bars or horizontal reinforcing bars for forming the lower reinforcing bar wire mesh in addition to the vertical reinforcing bars or horizontal reinforcing bars of the already formed lower reinforcing bar wire mesh. In addition, the same applies to a vertical reinforcing bar or a horizontal reinforcing bar forming the upper reinforcing bar wire mesh.

[0005]

In the method for arranging a reinforcing bar wire mesh used in a concrete structure according to claim 1, a plurality of lower spacers having a plurality of bending muscles having bent legs fixed by supporting muscles are arranged, Either the vertical rebar or the horizontal rebar forming the rebar wire mesh is placed on the support bar of the lower spacer, and the lower rebar wire mesh is floated by a predetermined height to arrange the bars. Next, a plurality of lower rebars are arranged side by side, an upper rebar is provided above the middle of the lower rebars, and further, one of the lower rebars and the other one of the lower rebars and the upper rebar are fixed via connecting rebars, respectively. Are attached to the bending muscles of the lower spacer. Then, either a vertical rebar or a horizontal rebar forming the upper rebar wire mesh is placed on the upper rebar of the upper spacer, and the upper rebar wire mesh is arranged at a predetermined height above the lower rebar wire mesh and arranged. Since the upper spacer is provided on the lower spacer at the time of rebar arrangement of the upper rebar wire mesh, if the meshes of the lower rebar wire mesh and the upper rebar wire mesh are overlapped, it is possible to easily arrange the bar work. The efficiency can be improved. Further, the upper spacer does not bite into the lower spacer due to the load of the upper rebar wire mesh and does not fall down, so that the safety of work can be ensured.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is an explanatory view of a work process of a method for arranging a reinforced wire mesh used in a concrete structure according to an embodiment of the present invention, and FIG. 2 is a view showing a reinforced state of a reinforced wire mesh used in the concrete structure. FIG. As shown in FIG. 1 and FIG. 2, the method for arranging a reinforcing wire mesh used in a concrete structure according to an embodiment of the present invention is, first, an example of a mountain-shaped reinforcing bar spacer 10 and an upper spacer, which are an example of a lower spacer. A corrugated reinforcing bar spacer 11 is prepared. Here, the mountain-shaped reinforcing bar spacer 10 to be prepared includes a mountain-shaped reinforcing bar 13 that is an example of two bending bars including leg portions 12 that are opposed to each other by bending both sides of the reinforcing bar downward, and two linear supporting members. It consists of muscle 14. And, the connection between the mountain-shaped reinforcing bar 13 and the supporting bar 14 is
Each of the chevron-shaped rebars 13 is erected at a predetermined interval, and the leg portions 12 on each side are fixed to each other by welding by passing a support bar 14 to an intermediate portion thereof. Further, the corrugated reinforcing bar spacer 11 has two lower reinforcing bars 15 juxtaposed substantially horizontally at a lower portion thereof, and one upper reinforcing bar 1 is disposed above and between the lower reinforcing bars 15.
6 is provided substantially parallel to the lower reinforcing bar 15, and further, one of the lower reinforcing bars 15 and the other of the lower reinforcing bars 15 are connected to each other by a corrugated reinforcing bar 17 which is an example of a connecting reinforcing bar.

A method for arranging a reinforcing wire mesh used in a concrete structure using the mountain-shaped reinforcing bar spacer 10 and the corrugated reinforcing bar spacer 11 configured as described above will be described in detail. First, a plurality of mountain-shaped reinforcing bar spacers 10 are arranged on a mold 18 used for building a concrete structure such as a floor.
Next, the lower rebar wire mesh 19 is arranged on the mountain-shaped rebar spacers 10. The lower rebar wire mesh 19 includes the horizontal rebar 20 and the vertical rebar 2.
1 is crossed and the crossed portion is fixed by welding. However, the crossing portion of the lower rebar wire mesh 19 is fixed by binding with wire or the like, or the vertical rebar 21 is placed on the horizontal rebar 20 at the time of construction without fixing the horizontal rebar 20 and the vertical rebar 21 into a wire mesh shape. What is formed shall be included. Then, a specific method of mounting the lower reinforcing bar wire nets 19 on the plurality of mountain-shaped reinforcing bar spacers 10 is to place the horizontal reinforcing bars 20 on the supporting bars 14 of the mountain-shaped reinforcing bar spacers 10 to form the lower reinforcing bar wire meshes. 19 is floated from the formwork 18 by a predetermined height and arranged.

Then, the corrugated reinforcing bar spacers 11 are installed so that the upper portions of the mountain reinforcing bars 13 of the mountain reinforcing bar spacers 10 are located between the lower reinforcing bars 15 arranged in parallel. Further, on the upper reinforcing bar 16 of the corrugated reinforcing bar spacer 11, the horizontal reinforcing bar 20 of the upper reinforcing bar mesh 22 having the vertical reinforcing bar 21 in the lower part and the horizontal reinforcing bar 20 in the upper part is placed, and the upper reinforcing bar mesh 22 is connected to the lower reinforcing bar mesh. Float a predetermined height from 19 and arrange. The corrugated reinforcing bar spacer 11
Is bitten into the mountain-shaped reinforcing bar spacer 10 by the load of the upper reinforcing bar wire net 22 mounted thereon. Therefore, the corrugated reinforcing bar spacer 11 does not fall when the upper reinforcing bar wire netting 22 is laid out, and the work safety can be ensured. Further, since the corrugated reinforcing bar spacers 11 are provided on the mountain reinforcing bar spacers 10 when the upper reinforcing bar wire nets 22 are laid, the lower reinforcing bar wire mesh 19 and the upper reinforcing bar wire mesh 22 can be easily arranged. It is possible to improve muscle work efficiency. In addition, the horizontal rebar 20 and the vertical rebar 2 of the upper rebar wire mesh 22
The connection at the intersecting portion of 1 includes the case of binding with a wire or the like similarly to the case of the support bar 14. Finally, concrete is poured on the formwork 18 to build a concrete structure such as a floor.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment and is included in the present invention without departing from the scope of the invention. For example, in the method for arranging the reinforcing wire mesh used in the concrete structure according to the embodiment of the present invention, the mountain-shaped reinforcing bar 13 is used as an example of the lower spacer.
Although the mountain-shaped reinforcing bar spacer 10 provided with is used, any shape that allows the corrugated reinforcing bar spacer 11 to be installed can be used, and instead of the mountain-shaped reinforcing bar 13, use trapezoidal reinforcing bars. Is also possible. The mountain-shaped reinforcing bar spacer 10 and the corrugated reinforcing bar spacer 11 can be formed by extending the required length, and the height and size of the lower reinforcing bar wire mesh 1
9 or the upper reinforcing bar wire mesh 22 can be manufactured according to the thickness and mesh size of the reinforcing bar used. The corrugated reinforcing bar spacer 11 is provided with one upper reinforcing bar 16 on the upper part thereof, but may be provided with a plurality of upper reinforcing bars 16, and the corrugated reinforcing bar 17 is not used as a connecting reinforcing bar connecting the upper reinforcing bar 16 and the lower reinforcing bar 15. You may make it use the rebar of the shape.

[0010]

According to the method of arranging a reinforcing bar wire mesh used in a concrete structure according to claim 1, an upper spacer is provided on a lower spacer on which the lower reinforcing bar wire mesh is mounted, and the upper reinforcing bar wire mesh is attached to the upper spacer. Since it is mounted, the upper spacer bites into the lower spacer, and the upper spacer does not fall down when the upper reinforcing bar mesh is laid, so that safe reinforcing work can be secured. Further, in the reinforcing bar wire netting method used for the concrete structure, since the upper spacer does not fall down and the reinforcing bar position does not shift when the upper reinforcing bar wire netting is made, concrete with a predetermined strength is provided. A construct can be obtained. Furthermore, since the upper spacer is provided on the lower spacer when the upper reinforcing wire mesh is laid, it is possible to easily arrange the reinforcing bars by overlapping the lower reinforcing wire mesh and the upper reinforcing wire mesh. , Work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a work step of a reinforcing bar wire netting method used for a concrete structure according to an embodiment of the present invention.

FIG. 2 is a main part front view showing a reinforcing bar wire netting state used in the concrete structure.

FIG. 3 is an explanatory diagram of a reinforcing bar wire netting method used for a conventional concrete structure.

[Explanation of symbols]

 10 mountain type reinforcing bar spacer 11 corrugated reinforcing bar spacer 12 legs 13 mountain type reinforcing bar 14 supporting bar 15 lower reinforcing bar 16 upper reinforcing bar 17 corrugated reinforcing bar 18 formwork 19 lower reinforcing bar wire mesh 20 horizontal reinforcing bar 21 vertical reinforcing bar 22 upper reinforcing bar wire mesh

Claims (1)

[Claims] 1. A plurality of bending muscles each including a leg portion in which both sides of a predetermined length of the reinforcing muscles are bent downward, and a plurality of bending muscles that are erected at predetermined intervals and are provided on both sides of the plurality of bending muscles. A plurality of lower spacers, which are fixed by passing supporting bars to each other on the legs located on each side, are arranged, and either vertical reinforcing bars or horizontal reinforcing bars forming the lower rebar wire mesh are placed on the supporting bars of the lower spacer. Then, a step of arranging the lower rebar wire mesh by raising it to a predetermined height, and arranging a plurality of lower rebars in a substantially horizontal manner in the lower part, and an upper rebar approximately parallel to the lower rebar above the middle of the lower rebars. Installed in
Furthermore, an upper spacer that fixes each of the one and the other of the lower rebar and the upper rebar through a connecting rebar,
A step of applying to the bending bar of the lower spacer, placing either a vertical bar or a horizontal bar that forms an upper bar wire mesh on the upper bar of the upper spacer, and the upper bar wire mesh is predetermined from the lower bar wire mesh. A method of arranging a reinforcing steel wire mesh used in a concrete structure, comprising: