JPH04221169A - Installation structure of mesh frame - Google Patents

Abstract

PURPOSE:To easily carry out the installation of a mesh form in a short time. CONSTITUTION:A nearly disc-shaped spacer 14 which is made of synthetic resin and in which an installation part 12 fitted with an iron reinforcing bars 10 on the side edge side is formed at the center position and a mesh form 18 consisting of a plurality of ribs 16 formed, keeping a prescribed interval, are provided, and the mesh form 18 is supported by the outer peripheral side of the spacer 14, and arranged in separation by a certain distance from the iron reinforcing bars 10.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mesh formwork mounting structure.

[0002] In the construction process of concrete structures,
This type of mounting structure is used when installing mesh formwork after reinforcing reinforcement.

0003

2. Description of the Related Art Conventionally, when attaching mesh formwork to both sides of a reinforcing bar cage, the mesh formwork 18 is raised to one side as shown in FIG. Pass the separator 50 inside the separator 50.
After attaching the fastening members 52 to the ends of the mesh formwork 18 from the outside to support the mesh formwork 18, raise the mesh formwork 18 on the opposite side as shown in FIG. This work is done by attaching the 52.

0004

[Problems to be Solved by the Invention] However, with the above-mentioned conventional attachment method, it is not possible to attach the mesh formwork 18 from both sides of the reinforcing bar cage 24 at the same time.
The work requires a lot of effort and time.

Furthermore, when attaching the mesh formwork 18, it is necessary to maintain a constant cover of the reinforcing bars, which does not provide good workability.

The present invention has been made in view of the above-mentioned conventional circumstances, and its object is to provide a mounting structure that allows mesh formwork to be easily mounted in a short period of time.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention is constructed as follows. 1 and 2 show a mounting structure according to the invention.

[0008] The approximately disk-shaped spacer 14 is molded from a synthetic resin material, and has a mounting portion 12 formed at its center position, and is fitted into the reinforcing bar 10 on the side end side.

A plurality of ribs 16 are formed on the mesh formwork 18 at predetermined intervals.

[0010] This mesh formwork 18 is supported on the outer peripheral side of the spacer 14 and is arranged at a constant distance from the reinforcing bars 10.

[0011]

[Operation] In the present invention, the mesh formwork 18 is supported by the spacers 14 attached to the reinforcing bars 10, so that the mesh formwork 18 can be easily attached in a short time.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the mounting structure according to the present invention.

As shown in the figure, a reinforcing bar cage 24 is formed by a plurality of main reinforcing bars 20 and stirrup bars 22, and a runner 28 is provided on leveled concrete 26 below the reinforcing bar cage 24.

A substantially disk-shaped spacer 14 is attached to the upper end side of the stirrup strip 22. As shown in FIG.

The spacer 14 is molded from a synthetic resin material, and has a mounting portion 12 formed at its center to be fitted onto the stirrup strip 22.

A mesh formwork 18 is suspended from the outer periphery of the spacer 14 by binding wires 30 or the like along water strings 32 for the top end.

Therefore, a predetermined cover size is maintained between the stirrup strips 22 and the mesh formwork 18.

A plurality of reinforcing ribs 16 are formed on the mesh formwork 18 at predetermined intervals to increase tensile strength and bending strength in the longitudinal direction.

Each mesh formwork 18 has a vertical edge 3 on its outer surface.
4 can be installed.

The lower ends of the vertical end pieces 34 are supported by runners 28, and the opposing vertical end pieces 34, 34 are fastened together with wire separators 36.

[0021] Mesh formwork 1 installed in this way
Reinforcing bars will be placed between sections 8 and 18, and concrete will be poured.

In the above configuration, the spacer 14 is attached only to the upper end side of the stirrup strip 22;
It may be attached at two locations on the upper end side and the lower end side, or at three locations on the upper end side, the center, and the lower end side.

Further, although the wire separator 36 is used in the illustrated embodiment, a rod-shaped separator may also be used.

Further, in the above configuration, only the vertical end thickness 34 is used, but the horizontal end thickness may be used in combination.

The structure of the spacer 14 is shown in FIGS. 3 and 4. A substantially V-shaped notch 44 is formed in the spacer 14 to form a notched circle, and a groove 46 that becomes the attachment part 12 is formed at the center of the notch 44 .

When attaching the spacer 14, the stirrup strips 22 are guided by the slopes of the notches 44, and the guided stirrup strips 22 are held in the grooves 46.

Therefore, the spacer 14 can be easily attached to any position on the stirrup strip 22, and can be easily attached to and removed from the stirrup strip 22.

[0028] Furthermore, the spacer 14 is formed with a large number of ribs 40 between the center side and the outer periphery side, and is subjected to a thinning process, and a binding wire is inserted into the hollow part between the ribs 40, 40. .

Furthermore, a large number of anti-slip protrusions 42 are formed on the outer peripheral surface of the spacer 14.

As explained above, according to this embodiment, the mesh formwork 18 is supported by the spacers 14, so that it can be easily attached from both sides of the reinforcing bar cage 24 simultaneously and in a short time.

Furthermore, since the mesh formwork 18 is attached to the outer circumferential side of the approximately disk-shaped spacer 14, the distance between the mesh formwork 18 and the stirrup bars 22 is maintained constant, so that the covering of the reinforcing bars can be easily ensured. It becomes possible to do so.

Furthermore, when attaching the spacer 14, the stirrup strips 22 are guided by the slope of the notch portion 44, and the guided stirrup strips 22 are held by the grooves 46, so that the stirrup strips 22 can be easily moved to any desired position. spacer 14
can be attached to the stirrup strip 22, and can be easily attached to and detached from the stirrup strip 22.

Furthermore, since the spacer 14 is molded from a synthetic resin material, the manufacturing cost is low and there is no fear of corrosion after concrete is placed.

[0034]

As explained above, according to the present invention, the mesh formwork is supported by the spacers, so that it can be easily installed in a short time.

Furthermore, by attaching the mesh formwork to the outer periphery of the approximately disk-shaped spacer, the distance between the mesh formwork and the reinforcing bars is maintained constant, making it possible to easily ensure the covering of the reinforcing bars. .

Furthermore, since the spacer is molded from a synthetic resin material, the manufacturing cost is low and there is no risk of corrosion after concrete is placed.

[0037]

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of an embodiment.

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a front view of the spacer.

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic diagram (part 1) showing a conventional example.

FIG. 6 is a schematic diagram (Part 2) showing a conventional example.

FIG. 7 is a schematic diagram (part 3) showing a conventional example. 10 Rebar 12 Mounting part 14 Spacer 16 Ribs 18 Mesh formwork 20 Main reinforcement 22 Stirrup muscle 24 Rebar basket 26 Leveled concrete 28 Runner 30 Binding wire 32 Water thread 34 Vertical edge 36 Wire separator 40 ribs 42 Protrusion 44 Notch part 46 groove

Claims

[Claims] Claim 1: A substantially disc-shaped spacer (14) made of synthetic resin and having a mounting portion (12) formed at the center thereof to be fitted onto the reinforcing bar (10) on the side end side, and a plurality of ribs (16). A mesh formwork (18
), and the mesh formwork (18) has a spacer (1
4) A mesh formwork mounting structure characterized in that it is supported on the outer circumferential side of the mesh formwork and is arranged at a constant distance from the reinforcing bar (10).