KR20000025054A - Synthetic deck plate using wire mesh and production method thereof - Google Patents

Abstract

PURPOSE: A synthetic deck plate is provided to remarkably reduce cost by producing a truss by cutting and curving a wire mesh and to improve productivity by easily carrying due to a light unit weight. CONSTITUTION: A synthetic deck plate is composed of a deck plate(10) and a truss(12). The truss is composed of a horizontal root(14) and a web root(18) for fixing the horizontal root. The deck plate, functioning as a structure material together with a fireproof covering as playing a role of a mold when installing concrete, is used by forming a groove or an unevenness on the steel plate of a flat plate shape. At the middle part of the deck plate, many combination grooves(22) are lengthened to the same direction as an interlocking unit(24) in a specific interval to fix the truss. The combination groove increases the rigidity of the deck plate as combining the truss and the deck plate while increasing attachment force between concrete and the deck plate after installing the concrete.

Description

Composite deck plate using wire mesh and manufacturing method thereof

The present invention relates to a composite deck plate using a wire mesh. More specifically, the composite deck plate and the method of manufacturing the concrete plate can be directly cast without the formwork and reinforcement by integrating the deck plate, such as three-dimensional truss and bent galvanized steel sheet formed by bending the wire mesh in the factory It is about.

FIG. 1 is a perspective view of a synthetic deck plate conventionally used in Korea, and is a product known as a Ferro Deck. The ferro deck uses reinforcing bar as the upper and lower reinforcing bars, and the lattice root is integrated with the steel plate bent to a predetermined shape using a round bar that is bent at the required length and angle and plastically processed.

Although not shown, the synthetic deck plate used in Korea is a super deck, and the shape of the truss and the deck plate is only slightly different from the deck, but the general behavior and functions are almost the same.

The conventional composite deck plate described above is designed and manufactured in consideration of the bending rigidity of the truss itself with respect to the construction load because it prioritizes to secure safety as a temporary structure for placing concrete rather than as a composite structure.

The lower root of the truss is used to increase the bending rigidity of the truss itself, but since the behavior of the composite structure as a tension member is hardly considered, it is true that the composite structure using the truss has increased the bending rigidity more than necessary. Particularly, in the case of the composite deck plate, since the deck plate is disposed at the lower side in addition to the lower side root, the role of the lower back side as a tension member may not be considered.

In this respect, existing products have a problem that excessive reinforcement of the lower reinforcing bar of the synthetic slab. In addition, the manufacturing process of trusses is very complicated and difficult, which is a major factor that increases the cost of composite deck plates.

An object of the present invention is to provide a composite deck plate and a method of manufacturing the same that can significantly reduce the cost by producing a truss by cutting and bending the wire mesh.

Another object of the present invention is to provide a synthetic deck plate and a method for manufacturing the same that can be appropriately arranged according to the requirements without excessively placing the lower muscle by using a wire mesh.

Still another object of the present invention is to provide a synthetic deck plate and a method of manufacturing the same, which can improve productivity due to small unit weight and easy handling.

Still another object of the present invention is to provide a composite deck plate and a method of manufacturing the same, which can be sufficiently manufactured using only existing wire mesh cutting and bending equipment without requiring a separate production facility.

1 is a perspective view and a cross-sectional view of a conventional composite deck plate.

2 is a perspective view of a composite deck plate of the present invention.

3 is a cross-sectional view of the composite deck plate of the present invention.

4 and 5 are plan views of the wire mesh showing the cutting positions and cross-sectional views of the trusses formed by bending the wire meshes.

<Description of Symbols for Main Parts of Drawings>

10: Deck Plate 12: Truss

14, 16: horizontal muscles 18: web roots

20: lower portion 22: coupling groove

24: interlocking portion 26: wire mesh

28: horizontal muscle 30: vertical muscle

The present invention will be described with reference to the drawings.

1 is a perspective view and a cross-sectional view of a conventional composite deck plate used. Conventional composite deck plate using a deformed reinforcement or circular reinforcement to install the lattice muscles to connect the upper and lower muscles and connect between the upper and lower muscles, integrated a plurality of upper and lower muscles fixed by the lattice muscles Install the latch to bind The latch bends the reinforcing bars so that the triangular shape appears repeatedly in the direction perpendicular to the upper and lower muscles, and welds and fixes the upper bars at the apex of the triangle, and welds and fixes the lower side of the latches to the bent deck plate. Therefore, since each of the reinforcing bar to use a separate reinforcing bar and the lattice bar and the latch must be separately, there is a problem that the time and cost required for the production of the truss is excessive and the amount of rebar increases.

2 is a perspective view of the composite deck plate of the present invention, Figure 3 is a cross-sectional view thereof. Composite deck plate of the present invention is composed of a deck plate 10 and the truss (12).

The truss 12 is composed of a horizontal root 14 and a web root 18 for fixing the horizontal root 14. As shown in FIGS. 3 (a) to 3 (c), the web root 18 is a triangular shape having a horizontal root 14 surrounding the horizontal root 14 with the horizontal root 14 as the apex of the triangle. Is bent and both ends are bent horizontally again. The web roots 18 are provided in plural at regular intervals in the longitudinal direction of the horizontal roots 14, so that the truss 12 is able to freely stand on the deck plate 10.

2 and 3 (d) are shown when the horizontal root 16 is installed one by one in the middle of the web root 18, but only one horizontal root may be installed at the apex of the web root 18, Depending on the results of the structural calculation, the amount of rebar can be adjusted as necessary. In addition, in the drawing, the web root 18 is bent in a triangular shape and one horizontal root 14 is installed at its apex, but the web root 18 is bent in a square or trapezoidal shape, and a plurality of horizontal roots are formed thereon. (14) can also be provided.

The truss 12 is fabricated using a wire mesh 26 as shown in FIGS. 4 and 5, in which FIG. 4 is the case where only one horizontal root 14 is installed at the top of the truss, and FIG. This is the case when the horizontal muscle 16 is further installed in the middle of the muscle 18. The wire mesh 26 is a wire or reinforcing bar arranged in a horizontal, vertical lattice shape and welded the intersection of the transverse bar 28 and the longitudinal bar 30, as shown in dashed dashed lines in Figs. Likewise, the wire mesh 26 is cut at regular intervals in a direction parallel to the longitudinal muscles 30, and the horizontal muscles 28 are bent in a triangular shape symmetrically about the longitudinal muscles 30, and the horizontal muscles 28 are again. Both ends of the bent horizontally to produce a truss (12). Since the size of the grid of the wire mesh 26 can be arbitrarily adjusted, in order to further install the horizontal root 16 in the middle of the web root 18, the module of the wire mesh 26 is adjusted as shown in FIG. By bending it, you can easily add horizontal roots.

Deck plate 10 is to function as a structural material with the role of formwork and appropriate fireproof coating when placing concrete, and is used by forming irregularities or grooves in the flat plate. Interlocking portions 24 are formed at both left and right ends of the deck plate 10 to connect the deck plate 10 and the deck plate 10 in a horizontal direction to install a composite deck plate continuously. In the middle portion of the deck plate 10, a plurality of coupling grooves 22 are formed long in the same direction as the interlocking portion 24 at regular intervals to fix the truss 12. The coupling groove 22 may be formed as a square, inverted triangle or inverted trapezoidal groove, the width of which is equal to the width of the truss 12 as shown in (a) of the third, or the third (b). As shown in the figure, the width of the lower end portion 20 of the truss 12 may be narrowly formed to the same width as the width of the bent portion. When the lower end portion 20 of the truss 12 is inserted into the coupling groove 22 of the deck plate 10, the truss 12 itself is engaged with the deck plate 10 by the elasticity of the truss 12 itself. It can also be fixed. The coupling groove 22 increases the rigidity of the deck plate 10, and also serves to join the truss 12 and the deck plate 10 and to promote adhesion between the concrete and the deck plate after the concrete is poured. do.

Deck plate 10 may be bent in a state in which there is no change in the cross-section in the middle portion as shown in the third (a) or 3 (b) and only the coupling groove 22 is formed, the rigidity of the deck plate 10 In order to increase the cross section, the cross section may be repeatedly bent into a square or trapezoidal shape as shown in FIG. 3 (c). The cross section is bent into a square or trapezoidal shape to form a coupling groove at the upper end to combine the truss and the deck plate, and to form a separate groove at the lower end to increase the adhesion of the deck plate and concrete and install the ceiling insert. FIG. 3 (d) is a cross-sectional view when the reinforcing bar is added in the middle of the web root 18. FIG.

In the above-described embodiment, the wire mesh 26 is cut into a constant module parallel to the longitudinal muscle 30 and bent again to manufacture a truss. However, the wire mesh 26 is continuously cut without cutting the wire mesh 26. It may be bent to manufacture a plurality of trusses 12 simultaneously and attach the truss 12 to the deck plate 10. That is, the wire mesh, in which the transverse roots 28 and the longitudinal roots 30 are connected in a lattice form in a constant module, is continuously bent in a direction parallel to the longitudinal roots 30 so that the cross section is repeatedly triangular, square or trapezoidal. The truss is manufactured by continuously bending one wire mesh 26 so that one or a plurality of longitudinal roots 30 are positioned at the apex of the triangular, square or trapezoid. The truss 12 can be easily manufactured by welding the deck plate 10 having a flat interlocking portion 24 formed on the side without a coupling groove in the middle thereof. However, in order to increase the rigidity of the deck plate may be slightly bent in the middle portion. In this case, the wire mesh requirement is somewhat increased, but the processing cost is reduced.

Conventional composite deck plate is a very complex process for manufacturing the truss was a major factor in the delay of the manufacturing process and the cost increase, in the present invention, it is possible to manufacture the truss very simply by using a wire mesh manufacturing time of the composite deck plate The cost and cost can be greatly reduced.

In addition, the spacing of the lattice of the wire mesh can be arbitrarily adjusted freely, so that the amount of reinforcing bars of the truss can be freely adjusted in accordance with the result of the structural calculation, thereby reducing the weight of the composite deck plate, making it easy to handle and improving productivity.

In addition, the composite deck plate of the present invention does not require a separate equipment other than the conventional wire mesh production and cutting equipment, there is an advantage that can be easily applied without the initial investment.

Claims (7)

A plurality of trusses composed of a plurality of web roots (18) which are bent to surround a horizontal root (14) and the horizontal root (14) as a triangle apex, with a lower triangular shape and both ends bent horizontally ( 12); And, As a flat plate-like plate, the interlocking portions 24 are formed on both sides of the plate, and in the middle, a deck plate having a plurality of coupling grooves 22 formed therein for fixing the end portions of the web roots 18 ( 10); Composite deck plate, characterized in that consisting of. The composite deck plate of claim 1, wherein a plurality of horizontal roots (16) are further added in the middle of the web roots (18). According to claim 1, The deck plate 10 is a composite deck plate, characterized in that the coupling groove 22 is formed in a portion that is repeatedly bent to form a valley and the acid to form a square or trapezoidal form. The composite deck plate according to any one of claims 1 to 3, wherein the truss (12) is made by bending a wire mesh (26). A truss 12 that is bent continuously so that the wire mesh 26 is bent so that a cross section is triangular, square or trapezoidal in shape; And, A deck plate having a flat plate-like plate having interlocking portions 24 formed on both sides of the plate; Composed of, the truss (12) composite deck plate, characterized in that fixed to the deck plate by means such as welding. A plurality of engaging grooves 22 are formed in the middle portion of the plate deck plate 10 in the longitudinal direction, and interlocking portions 24 are formed at both left and right ends thereof; The wire mesh 26 having a plurality of transverse roots 28 and longitudinal roots 30 arranged in a lattice shape is cut to include one or more longitudinal roots 30 in a direction parallel to the longitudinal roots 30. and; Among the one or more longitudinal muscles 30, the transverse muscles 28 are bent left and right about the central longitudinal muscle 30 of the center, and both ends of the transverse muscles 28 are horizontally bent again to form a truss ( 12) is prepared; And, Fixing the lower end portion 20 of the truss 12 to the coupling groove 22 of the deck plate 10; Method of producing a composite deck plate, characterized in that consisting of steps. Interlocking portions 24 are formed at both left and right ends of the plate-shaped deck plate 10; The wire mesh 26 having a plurality of transverse roots 28 and the longitudinal roots 30 arranged in a lattice shape is continuously bent in a direction parallel to the longitudinal roots 30 so that the cross section is repeatedly triangular, square or trapezoidal. Appearing, continuously bending so that one or more longitudinal roots (30) are located at the apex of the triangle, square or trapezoid; And, Securing the wire mesh (26) to the deck plate (10); Method of producing a composite deck plate, characterized in that consisting of steps.