JPS6217529Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an assembly aggregate for construction that is relatively lightweight, strong and rigid, and has good adhesion to concrete, etc., and is particularly suitable for deck plates for concrete pouring. It is something that

As a conventional deck plate, one in which U-shaped or V-shaped uneven stripes are arranged side by side on a wide steel band is known. However, in the conventional type, although the rigidity is large in the direction parallel to the uneven stripes,
Since the rigidity is low in the direction perpendicular to the uneven stripes, it was necessary to increase the density of the supporting material. In addition, the surface of the steel strip not only has poor adhesion to concrete, but also causes cracks in the concrete layer due to thermal stress caused by the difference in thermal expansion between the steel strip and the concrete layer.

However, in this invention, a wire lattice and a metal mesh having steel wires welded on the front and back sides are made to face each other at a predetermined interval, and a steel wire truss is interposed between the wire lattice and the metal mesh to connect the two. Therefore, uniform and large rigidity can be obtained in all directions, the adhesion of concrete can be improved, and it can be made relatively lightweight, thus solving the problems of the prior art.

This invention will be explained below based on embodiments shown in the drawings.

Steel wires 1 and 2 are arranged in parallel vertically and horizontally to form a lattice at predetermined intervals (for example, 10 cm), and the intersections of the steel wires are spot welded to form a wire lattice 3 of a predetermined size. On the other hand, a predetermined size (e.g. 90
A plurality of steel wires 5 are installed vertically at a predetermined interval (for example, 10 cm) on one side of a metal lath 4 (cm x 180 cm), and a plurality of steel wires 6 are installed at a predetermined interval (for example, 10 cm) on the other side of the metal lath 4. The steel wires 5 and 6 are installed horizontally and are spot welded at each intersection (FIG. 1). The wire grid 3 and the metal lath with steel wire are arranged in parallel at a predetermined interval, a steel wire truss 7 is interposed between them, and the top of the steel wire truss 7 and the steel wires 1 and 5 are spot welded, respectively. The wire lattice 3 and the metal lath 4 are integrally connected by the steel wire truss 7 to constitute the construction aggregate of this invention.

According to the above embodiment, since metal lath is used as the metal mesh and steel wire is attached, it has strong adhesion to concrete, etc., and the influence of thermal expansion and contraction is smaller than that of steel plate, and it has strength against thermal stress of concrete, etc. increases, so there is no risk of cracking in concrete, etc. When this embodiment is used as a deck plate, the metal mesh is placed on the top side and the lower part thereof is buried in concrete, thereby providing excellent rigidity and improving adhesion to concrete. In addition to metal lath, wire lath, punched metal, or the like may be used as the metal net used to carry out this invention, and similar effects can be obtained. Furthermore, if necessary, a noncombustible heat insulating material such as foamed concrete or glass wool can be filled between the wire grid and the metal mesh to provide an extremely excellent fireproof structural material.

In other words, according to this invention, the wire grid and the metal mesh formed by welding steel wires to the front and back sides are placed facing each other at a predetermined interval, and the two are connected by a steel wire truss, so that the force applied to the aggregate is transmitted by the metal mesh, the metal mesh, and the metal mesh. It is supported by an integral structural member of front and back steel wires and a wire lattice connected to these by a truss, and has the effect of being able to obtain uniform and large rigidity without directionality. In addition, strong adhesion to concrete or mortar can be obtained, and the materials constituting the formwork become aggregates for concrete, etc., and have the effect of preventing cracks from occurring. Furthermore, since the assembled aggregate of this invention can be produced in a factory, it can be mass-produced at a relatively low cost and has various practical effects, such as being able to obtain a homogeneous product.

[Brief explanation of the drawing]

Fig. 1 is a partially enlarged perspective view of the embodiment of this invention, Fig. 2 is a rear view with the same part omitted, and Fig. 3 is a partially enlarged perspective view.
The figure is also a partially enlarged sectional view. 1, 2, 5, 6... Steel wire, 3... Wire grid,
4...metal lath, 7...steel wire truss.

Claims (1)

[Claims for Utility Model Registration] 1. A wire grid and a metal net are opposed to each other at a predetermined interval, and steel wires are attached to both the front and back sides of the metal net at a predetermined interval, and the steel wires on the front and back are welded and fixed to each other. The metal mesh and the wire grid are integrally connected by a steel wire truss. 2. The assembled aggregate for construction according to claim 1, wherein the metal mesh is metal lath, wire lath, or punched metal.