WO2014133243A1

WO2014133243A1 - Form for concrete formwork

Info

Publication number: WO2014133243A1
Application number: PCT/KR2013/010147
Authority: WO
Inventors: 박두철; 김명호; 조승현
Original assignee: 피앤케이에코 주식회사
Priority date: 2013-02-28
Filing date: 2013-11-08
Publication date: 2014-09-04

Abstract

A form for concrete formwork comprises: a frame reinforced with horizontal and vertical members; and an upper panel coupled to the frame, wherein the frame is formed by a sheet metal frame bar (10) having a hollow portion (11) formed therein, a core (12) is provided in the hollow portion (11), and an adhesive layer (13) is formed between the core (12) and the sheet metal frame bar (10) so that the core (12) is integrated into the inside of the sheet metal frame bar (10). Since the frame bar of the form has a hollow structure, the form can be lightweight, can be easily manufactured, and can reduce material costs, as compared to conventional forms that are formed by bending a thick steel plate. [Representative drawing] FIG.2

Description

Form Foam

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a foam form, and more particularly, to a foam form having an improved structure to reduce the material cost and to reduce weight, and a foam form having an upper panel improved to be permanently usable.

Generally, concrete is formed by forming a mold during molding of a concrete building structure, inside / outside wall and columns, and curing it by placing concrete in the inside space.

These molds used conventional wood panels, but with the increase in price, wood is easily deformed by absorbing the moisture of concrete during use and is limited in repetitive use, so that it is shaped to a certain standard, and the upper panel is assembled into a metal frame Has been widely used.

As an example of such a euro form, the frame 2 of the form 1, as schematically shown in Fig. 1, is generally made of iron and has a generally tetragonal shape. The frame 2 has a fastening hole 2a for fastening a pipe hook and a wedge pin and a flat flat tie bar or a spacing bar having a long and long length, A plurality of spacing grooves 2b are formed at predetermined intervals. An angle 3 for reinforcing the frame and the plate material is appropriately arranged inside the frame 2. The plate 4 is disposed on the front surface of the frame 2 and is fastened with a rivet or the like. The Euroform type die 1 is shaped to a certain standard and is easy to install and disassemble and can be used repeatedly.

However, such a conventional Euroframe frame is very heavy due to the increase of material cost and molding processing cost due to the use of a thick steel plate so as to have rigidity to withstand the flexural deformation against load, and thus it is difficult to carry and install.

Further, the plate material 8 of the Euroform type die 1 has conventionally used a lot of wood plywood. This is because the wood plywood has a large resistance against the flexural load as compared with the thickness and the weight of the wood plywood because the wood plywood is manufactured by laminating several single plates. However, the wood plywood is insufficient in water resistance and durability due to the nature of the material, and therefore, it is usually changed after 5 to 10 times of use. In addition, since the wood plywood has a property of sticking to the concrete, the degree of damage to the surface of the concrete in the process of being detached after the hardening of the concrete is so large that the number of times of repeated use is greatly restricted. In addition, since the wood plywood is disposed on the front surface of the frame 2 and is fastened with a rivet or the like, there is a problem that a rivet mark remains on the pouring surface of the concrete when the form is removed.

For this purpose, in recent years, a Euroform type die has been attempted in which a plate material 10 made of synthetic resin instead of the wood plywood is joined to a frame 2 made of iron or made of synthetic resin. However, since the synthetic resin board 8 is superior in water resistance and durability to wood plywood, it has a long life and is easily separated from the concrete joint surface, that is, it is easily demolded. However, There was a problem that it was broken.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a foam for a dies having a foam frame and an upper panel having an improved structure to solve the problems of the conventional euro foam and to reduce manufacturing cost, weight and durability.

In order to accomplish the above object, a mold for a mold according to the present invention includes an upper panel coupled to a frame on which a transverse member and a longitudinal member are reinforced, wherein the frame comprises a thin plate The hollow frame is provided with a core, and an adhesive layer is formed between the core and the frame bar made of metal so that the core is integrated inside the frame bar.

And two metal thin plate members such as an inner side and an outer side are joined to form a hollow portion inside the frame bar.

The protrusion may be formed at the center of the outer surface of the frame bar so as to reinforce the support rigidity of the crossmember and the sidemembers with respect to the bolt fastening along the longitudinal direction of the frame bar.

The upper panel is constituted by integrally joining the steel reel sheet with the adhesive layer on the outer side of the plywood plate, and the end of the plywood plate is provided with a synthetic resin molding.

In addition, the thin plate member on the inner side of the frame bar may be formed with a protrusion so that the upper panel can be fixed by being mounted.

A plurality of cross members are provided between the frame bars in the transverse direction constituting the frame, a reinforcing side member is provided between the crossbar members provided at the outermost side and the frame bar in the vertical direction, and the cross member and the side member A plurality of holes may be formed for weight reduction.

Preferably, the upper panel is comprised of a plurality of upper panel units to partially replace the upper panel without replacing the entire upper panel with respect to partial damage.

By forming the frame bar of the foam in the hollow structure in this way, the weight can be reduced, and compared with the conventional method in which the thick steel plate is formed by bending, the manufacturing is easy and the material cost can be reduced.

In addition, a metal plate is disposed outside the plywood of the upper panel, and it is subjected to a special surface treatment to prevent corrosion by the remicon (alkali) and to be easy to peel away the concrete, and when the concrete is poured, the concrete flows through the clearance of the frame- It is possible to overcome the disadvantage that the conventional plywood has to be replaced after 3 to 6 times of use due to the weak external force and moisture due to concrete and 100 times or so in case of aluminum material, Can be used.

1 is an exploded perspective view of a conventional foam.

2 is a cross-sectional view of a frame of a foam according to the present invention.

Figures 3 (a) -3 (e) show several variations of the frame of Figure 2.

Figure 4 is a side view of the frame of Figure 2;

5 is a partial cross-sectional view showing a state in which the upper panel of the foam is fixed to the frame bar.

6 is an exploded perspective view showing another structure for fixing the upper panel of the foam according to the present invention to the frame bar.

7 is a perspective view showing a form according to another embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The form foam of the present invention is composed of a frame in which a reinforcing member of a transverse member and a longitudinal member are coupled to a rectangular frame at a regular interval like an ordinary shape, and an upper panel coupled to the frame. This structure refers to the conventional structure of Fig.

2, the foam frame according to the present invention is formed of a metal frame bar 10 on a thin plate such that an inner hollow portion 11 is formed, the hollow portion being provided with a core 12, An adhesive layer 13 is formed between the metal frame bar 10 and the metal frame bar 10 so that the core is integrated inside the frame bar. The core is preferably provided with wood.

On the inner surface of the frame bar hollow portion, for example, a wire 14 may be provided as gap maintaining means for maintaining the adhesive layer at a constant gap. Alternatively, the gap maintaining means may be formed as protrusions protruding at regular intervals from the inner side of the frame bar instead of the wire, or may be formed as protrusions protruding from the other side of the frame bar, for example, Of course, materials can be used.

And the outer surfaces of the frame bars are formed in a curved shape to increase rigidity. Particularly, in FIG. 2, a central portion protrudes outward to form a protrusion along the longitudinal direction, and the support rigidity is reinforced when the bolt is fastened to the cross-member bar and the side member through the protrusions.

3 (a) to 3 (e) show modified examples of the thin metal plate structure of the hollow metal of the frame bar of Fig. 2, wherein Fig. 3 (a) 3 (b) to 3 (e) show a state in which the two metal thin plate members (the outer side and the inner side) are formed so as to form the hollow portion 11 inside the frame bar 10 16 and 17, and as shown in the modified embodiment, the end of the inner thin plate member 17 is disposed so as to be contacted with or spaced apart from the inner side surface of the outer thin plate member 16 . The hollow portion 11 may be provided with a core such as a wood as described with reference to Fig.

As shown in the drawing, the protruding portion 15 may be formed on the inner side of the frame bars, and the upper panel may be fixed to the protruding portion 15 so that the overall height of the foam is limited to the height of the frame bar. do.

3 (a), the frame bar 10 may be hollowed without a core. In this case, the frame bar may be manufactured by folding the high strength steel steel and then joining the ends thereof have.

On the side surface of the frame bar, a hole 19 partially formed as an upper part and a lower part is formed as shown in FIG. 4, and this hole shape is formed in the form of a frame Bolts, special pratt ties or the like for common use in order to combine them with each other.

The upper panel 20 mounted on the foam frame of the present invention may be replaced with a steel laminate 21 on the outer side as shown in the sectional view in FIG. 5 instead of a conventional simple plywood or plastic panel used conventionally, (22) are provided and coupled to each other. At this time, it is preferable that an adhesive layer 24 is provided between the steel re-thin plate and the plywood to integrate them, and a synthetic resin molding 23 such as soft PVC is provided at the end of the plywood 22, The upper panel of the example is provided with a protective end cap 27 made of metal after the synthetic resin molding 23 is attached to the end of the plywood and an adhesive layer 24 is applied thereon to fix the steel re- do. The end cap 27 and the steel thin plate 21 may be further fastened by bolts or screws. Also, either the end cap 21 or the molding 23 may be provided.

The upper panel structure in which the steel re-end cap 27 is provided and on which the steel re-thin plate 21 is fixed is not limited to the frame bar 10 having a structure in which the core described in the above- The bar may be made of steel or aluminum without solid core, and the upper panel of the structure shown in Fig. 5 may be fixed thereon.

According to the present invention, the upper panel 20 has a structure in which the steel thin plate 21 is disposed as a protective cover on the outer side in contact with the concrete, and the plywood is disposed on the inner side. So that the deformation due to the load is reinforced by the steel re-thin plate 21 provided on the outer side, so that the lifetime is prolonged as a whole and the foam can be easily removed from the cured concrete . The thin plate is preferably 0.3 mm thick. The protective cover may be composed of a glass fiber sheet instead of the steel reel.

The upper panel 20 is mounted on the frame bar 10 shown in FIG. 2 and fixed by fastening means such as a bolt. At this time, the height of the entire foam is controlled by the thin steel plate 21, the plywood 22, In this case, since the height of the frame bar is reduced, it is possible to reduce the material cost because it is not necessary to form the upper panel fixing protrusion on the frame bar.

As the plywood 22 of the upper panel, besides wood, plastic panel, synthetic wood, carbon wood, fly plywood and the like can be used.

As shown in FIG. 6, the upper panel 20 formed by joining the steel resilient thin plate 21 and the inner plywood can be fixed to the frame bar by disposing the bar 25 at the rim and fastening it with bolts. At this time, the bar 25 may be formed of a magnet material so that the fastening position of the steel reel plate opposite to the plywood can be easily positioned.

(Urethane or the like) having a dustproof, soundproofing and sealing function for preventing the vibration and noise generated when the foam is installed or dropped and preventing the water or the remicon flowing from the upper panel from flowing into the foam connection portion or the inside, It is possible to provide the surface of the steel thin plate surrounding the panel and the side surface and the side surface of the frame so that the surface is treated with a special surface so that corrosion resistance by the alkaline concrete ready mixer and detachment of remicon are excellent, Thereby preventing the problem that the foam is hard to be taken out through the gap and hardened.

As a result, conventional plywood can be used permanently overcoming the disadvantage of replacing after 3 to 6 times of use due to weak external force and moisture due to concrete, or replacing after about 100 times of use in case of aluminum material.

FIG. 7 is a perspective view showing a state of use of another embodiment of the present invention. In the frame bars 10 of the frame of the present invention, a plurality of cross members 30 are fastened by fastening means such as bolts And a reinforcing side member 35 is further joined between the cross members 30 provided on the outermost side and the frame bar in the longitudinal direction to constitute a frame. The cross member 30 and the side members 35 are preferably formed with a plurality of

holes

31 and 36 for weight reduction. Thus, the frame bar, the cross member, and the side members are combined to form the foam frame, and then the upper panel 20 of the above-described structure is joined on the foam frame to complete the foam. At this time, when the upper panel 20 is partially damaged, the entire upper panel is partially replaced without replacing, so that a plurality of pieces, for example, 2 pieces, 4 pieces, 8 pieces And may be composed of upper panel units 28 divided into pieces and assembled on the frame. Thus, by replacing only the damaged upper panel unit 28, the foam can be easily and quickly repaired and the material can be saved.

The present invention is applied to foam so as to extend the life of the foam used in the construction of the concrete structure, reduce weight, and reduce the manufacturing cost.

[Description of Symbols]

10: frame bar 11: hollow part

12: core 13: adhesive layer

15: protrusions 16, 17: thin plate member

20: upper panel 21: steel plate

22: plywood 23: molding

24: adhesive layer 28: upper panel unit

30: Cross member 31: Hole

35: side member 36; hall

Claims

A form mold comprising an upper panel coupled to a foam frame in which the transverse members and longitudinal members are reinforced,

The foam frame is formed of a metal frame bar 10 of a thin plate on which an empty hollow 11 is formed and a core 12 is provided on the hollow part and an adhesive Wherein the core (13) is formed and the core is integrated inside the frame bar.
The molding foam according to claim 1, wherein the frame bar (10) is formed by joining two metal thin plate members (16, 17), an inner side portion and an outer side portion, so that a hollow portion (11) is formed therein.
The frame bar according to claim 1 or 2, wherein protrusions are formed at the center of the outer surface of the frame bar to reinforce the support rigidity of bolts fastened to the crossmember and the side mem- bers along the longitudinal direction of the frame bar Form for the mold.
The foam according to claim 1 or 2, wherein the upper panel (20) is bolted tightly to an upper surface of a rectangular frame bar (10).
The frame bar according to claim 1 or 2, wherein a protrusion (15) is formed on the inner side of the frame bar (10) and the upper panel (20) is flush with the upper surface of the frame bar Wherein the foam is fixed by being placed on the mold.
The upper panel according to claim 1 or 2, wherein the steel thin plate (21) is integrally joined to the outside of the plywood (22) by an adhesive layer (24) Characterized in that a remolding (23) is provided.
6. The foam according to claim 5, wherein a bar (25) is arranged at a rim of the plywood (22) for bolting connection of the plywood (22) and the steel reel (21).
8. The foam according to claim 7, wherein the bar (25) is made of magnetic material so as to easily set the position of the bar with respect to the thin steel plate (21).
3. The foam according to claim 1 or 2, wherein a gap maintaining means is provided on an inner surface of the hollow portion of the frame bar to maintain the adhesive layer at a constant gap.
3. The foam frame according to claim 1 or 2, wherein a plurality of cross members (30) provided between the frame bars (10) in the transverse direction constituting the foam frame, cross members (30) There is provided a reinforcement side member 35 provided between frame bars in the longitudinal direction and the cross member 30 and the side members 35 are formed with a plurality of holes 31 and 36 for weight reduction Features mold for form.
5. The form as claimed in claim 4, wherein the upper panel (20) is constituted by a plurality of upper panel units (28) so as to be partially replaceable without replacing the entire upper panel, .
A form mold comprising an upper panel coupled to a foam frame in which the transverse members and longitudinal members are reinforced,

The upper panel is provided with a metal thin plate 21 at least on the outer side of the plywood 22 and a metal end cover 27 on the side of the end with a molding 23, Characterized in that an adhesive layer is provided between the plywoods (22) to form an integral structure.
13. The form as claimed in claim 12, wherein the upper panel (20) is comprised of a plurality of upper panel units (28) so as to be partially replaceable without replacing the entire upper panel .