KR200298101Y1 - Concrete form - Google Patents

Abstract

The present invention is to reduce the manufacturing cost by reducing the requirements of the vertical support, as well as to the building formwork that can be repeatedly reused in other building construction, to prevent partial deformation.

According to the present invention, the outer wall formwork 10 and the inner wall formwork 20 are installed in parallel so as to be spaced apart by a predetermined interval by the bar-shaped connecting member 30, between the outer wall formwork 10 and the inner wall formwork 20 In the building formwork to be able to form a wall by pouring concrete (C), the outer wall formwork 10 is a metal plate 11 is formed with a plurality of insertion holes 12 through the connection member 30 at a predetermined interval And a connecting hole 14 fixed to the metal plate 11 and positioned in communication with the insertion hole 12 so as to be positioned outside the insertion hole 12, and coupled through the insertion hole 12. Building formwork is provided, characterized in that it comprises a plurality of reinforcing pieces 13 to reinforce the engaging portion of the 30, and a plurality of horizontal supports 15 provided at predetermined intervals on the outer surface of the metal plate (11).

Description

Formwork for construction {Concrete form}

The present invention relates to a building formwork, and more particularly, to reduce the cost of manufacturing by reducing the requirements of the vertical support, as well as to be repeatedly reused in other building construction, and to prevent partial deformation. It is about.

In general, when a building is constructed, reinforcing bars are used to form a skeleton, and inner and outer wall formwork is installed inside and outside of the skeleton, and concrete is then cast between the inner and outer wall formwork for curing for a predetermined period of time. At this time, the conventional exterior wall formwork used is made of wood panel not only takes a lot of time to manufacture, but also the most damaged in the process of removing the formwork after the concrete curing is not possible to reuse, separate scaffolding for building exterior work There were various problems such as having to install.

Therefore, in recent years, large exterior wall formwork (commonly referred to as gang form) that is installed to the outside of the building at the time of concrete pouring has been developed and used essentially for the construction of high-rise buildings. The exterior wall formwork is made of metal material and can be repeatedly used in building exterior wall construction from the ground floor to the rooftop floor, and a multistage workbench for exterior construction is connected to the exterior wall formwork.

As shown in FIG. 1, the outer wall formwork is attached to the outer surface of the metal plate 11 so that the horizontal support 15 is spaced apart at regular intervals, and a predetermined gap S is formed on the outer side of the horizontal support 15. ) Attach the vertical supports (17) side by side in two pairs. At this time, by installing a connection structure connected to the inner wall formwork 20 of FIG. 2 as a gap (S) between the pair of vertical support 17, the concrete (C) pressure between the inner and outer wall formwork (10, 20) This prevents the inner and outer wall formwork 10 and 20 from being separated from each other.

And, as shown in Figure 2, the connection structure of the inner and outer wall formwork (10, 20), the inner end of the tie bolt 41 is fixed to the inner wall formwork (P) 41, and the tie bolt A cone nut 43 fastened to an outer end of the 41 and embedded in an outer surface of the concrete C, a fastening bolt 44 fastened to the cone 43 and penetrating the outer wall formwork 10; A rib washer 45 inserted into the outer end of the fastening bolt 44 and tightly attached to the surface of the vertical support 17, and a winch nut 46 fastened to the fastening bolt 44 from the outside of the rib washer 45. It is composed of

However, the conventional formwork system as described above requires a pair of vertical supports 17 in order to install a single row of connecting structures, and in order to install a plurality of rows so as to match the size of the outer wall formwork 10 with such connecting structures. Regardless of the strength of the formwork, the vertical support 17 is required more than necessary in its structure, which causes the consumption of materials and the increase in manufacturing cost.

In addition, the position of the inner wall partitioning the inner space, the thickness of the wall, etc. are different depending on the building to be constructed, the relative position of the inner wall formwork 20 with respect to the outer wall formwork 10 is different for each building. Therefore, the positions of the tie bolts 41 and the fastening bolts 44 passed between the inner wall formwork 20 and the inner wall formwork 20 are different for each building, and the positions of the tie bolts 41 and the fastening bolts 44 are different. In accordance with the outer surface of the formwork 10, a pair of vertical bars 17 should be provided. Therefore, in order to reuse the conventional exterior wall formwork 10 during the construction of another building, the existing vertical bar 17 welded to the exterior wall formwork 10 is cut off one by one, and the vertical bar 17 is tie bolt 41. Due to the difficulty in the work that must be reinstalled in accordance with the position of the fastening bolt 44, there is a problem that the waste of resources and construction costs are increased as it is not reused and disposed of.

In addition, if the winch nut 46 is excessively tightened when the inner and outer wall molds 10 and 20 are connected, the metal nut 11 of the outer wall formwork 10 is pulled toward the winch nut 46. By making it bulge outwards, there is a problem such that the wall surface of the concrete (C) to be poured is not smooth and bumpy.

The purpose of the present invention is to reduce the manufacturing cost by reducing the requirements of the vertical support, as well as to provide a formwork for construction that can be repeatedly reused in other building construction, and the walls of the concrete to be poured smooth.

1 is a front view of a conventional exterior wall formwork

Figure 2 is an enlarged cross-sectional view of the main portion of the conventional formwork

Figure 3 is an enlarged perspective view of the main portion of the formwork according to the present invention

Figure 4 is an enlarged cross-sectional view of the main portion of the formwork according to the present invention

5 is a front view of the outer wall formwork constituting the subject innovation

<Description of the symbols for the main parts of the drawings>

10: outer wall formwork 11: metal plate

12: insertion hole 13: reinforcing piece

15: horizontal support 17: vertical support

20: inner wall formwork 30: connecting member

According to the present invention, the outer wall formwork 10 and the inner wall formwork 20 are installed in parallel so as to be spaced apart by a predetermined interval by the bar-shaped connecting member 30, between the outer wall formwork 10 and the inner wall formwork 20 In the building formwork to be able to form a wall by pouring concrete (C), the outer wall formwork 10 is a metal plate 11 is formed with a plurality of insertion holes 12 through the connection member 30 at a predetermined interval And a connecting hole 14 fixed to the metal plate 11 and positioned in communication with the insertion hole 12 so as to be positioned outside the insertion hole 12, and coupled through the insertion hole 12. Building formwork is provided, characterized in that it comprises a plurality of reinforcing pieces 13 to reinforce the engaging portion of the 30, and a plurality of horizontal supports 15 provided at predetermined intervals on the outer surface of the metal plate (11).

According to another feature of the present invention, the insertion hole 12 of the metal plate 11 is composed of a narrow and long length long hole shape, the insertion hole when the outer wall formwork 10 is used again in another building construction ( 12) A building formwork is provided, characterized in that the welding rod is melted to fill and to form the insertion hole 12 in another position of the metal plate 11.

Hereinafter, described with reference to the accompanying drawings, preferred embodiments of the present invention is as follows.

3 to 5 are a perspective view, a sectional view and a front view of the formwork according to the present invention, respectively. Referring to this, the building formwork is similar to the prior art that the inner wall formwork 20 and the outer wall formwork 10 is spaced apart by a predetermined interval by the bar-shaped connecting member 30, in the present invention the outer wall formwork 10 ) Is provided on the metal plate 11 formed with a plurality of insertion holes 12, a plurality of reinforcing pieces 13 fixed to the outer surface of each insertion hole 12, and is provided on the outer surface of the metal plate 11 Consisting of a plurality of horizontal support (15), while significantly reducing the conventional vertical support (17), by forming the insertion hole 12 in a different position is to be able to reuse easily in other building construction.

The metal plate 11 may be formed of a single plate, or may be formed of plates 11a and 11b divided into a plurality of plates and connected to each other. At this time, the connecting portion of the divided plate (11a, 11b) is provided with a flange 11c bent outward, it is configured to be connected to each other when fastening the flange (11c) with bolts or rivets. In addition, when the outer wall formwork 10 is recycled to another building, the size of the outer wall of the building is changed, so that the recycled portion of the outer wall formwork being recycled is recycled and the portion of the outer wall form that is short is cut off by a new metal plate. It is connected by a connection method to form the outer wall formwork 10 of the required size. In addition, the flange (11c) may be formed integrally by bending the end of the metal plate 11, it may be formed by welding a separate angle member to the metal plate (11).

In addition, the metal plate 11 is formed with a plurality of insertion holes 12 for coupling the connection member 30, such insertion holes 12 can be drilled in various forms such as round or square, but narrow and long Forming a long hole is preferable because it is easy to fill the insertion hole 12 with a welding rod when reused in other buildings. At this time, the insertion hole 12 may be formed by machining directly on the metal plate 11 of the outer wall formwork 10, the metal plate 11 is quite large in size to put it on a cutting machine to form a long hole In this metal plate 11, it is preferable to form a circular hole with a drill, and to weld a separate washer 12a having an insertion hole 12 in the form of a long hole in the circular hole so as to be embedded for welding convenience. Do.

The reinforcing piece 13 couples the outer wall formwork 10 to the connecting member 30 with a pin P, and joins the connection portion with the connecting member 30 which is a relatively weak part of the outer wall formwork 10 to the concrete (C). It is for reinforcing so as not to be deformed by lateral pressure, etc., and is welded to the metal plate 11 of the outer wall formwork 10 so as to be positioned outside the respective insertion holes 12.

The reinforcing plate 13 is composed of a fixing portion 13a that is in close contact with the metal plate 11 and welded, and a pin coupling portion 13b protruding outward from one side of the fixing portion 13a. In this case, a communication hole 14 communicating with the insertion hole 12 of the metal plate 11 is formed in the fixing part 13a, and a pin hole is formed in the pin coupling part 13b to form an outer side of the connection member 30. The coupling portion 37 and the pin (P) is configured to be fastened. At this time, the communication hole 14 may be molded in the form of a long hole, it is preferable to mold in a circular shape because it is easy to cut the connection member 30 to be described later when dismantling the formwork. In addition, the reinforcing piece 13 is preferably extended to the lower portion is welded to the adjacent horizontal support 15 can increase the holding force of the reinforcing plate (13).

In addition, the vertical support 17 is to be used only when necessary for the structural strength of the outer wall formwork or when installing the work platform, regardless of the coupling of the connecting member 30. In some cases, a horizontal reinforcement 18 is provided on the outer surface of the vertical support 17.

The connecting member 30 is a strip-shaped metal member for connecting the inner wall formwork 20 and the outer wall formwork 10 at a predetermined interval. The connection member 42 is provided with an inner coupling portion 31 and an outer coupling portion 37 having pinholes at both ends thereof, so that the inner wall formwork 20 and the outer wall formwork 10 and the pin P are fastened to each other. In addition, a cut portion 39 cut in a U-shape is formed inside the inner coupling portion 31 and the outer coupling portion 37, and a cutting induction hole 38 is formed in the center of the cut portion 39 to dismantle the formwork. When the inner and outer coupling portions 31 and 37 are repeatedly bent and cut, the break line is formed toward the cutting guide hole 38 so as to be cut toward the inside of the concrete (C) wall surface.

Building formwork according to the above configuration is inserted into the gap between the inner wall formwork 20 and the inner wall formwork 20 of the connecting member 30, the pin (P) is coupled to the inner wall formwork 20 The outer coupling portion 37 of the connection member 30 protrudes to the outside of the outer wall formwork 10 through the insertion hole 12 to couple the pin P to the fixing piece 13.

Therefore, the formwork is connected to the reinforcing piece 13 welded to the metal plate 11, the connecting member 30 is a pin (P) to support the outer wall formwork 10 to be spaced apart from the inner wall formwork 20, Since there is no need for a separate vertical support 17 as in the conventional coupling portion of the connection member 30, the required amount of the vertical support 17 of the outer wall formwork 10 can be significantly reduced, thereby reducing the cost of the product.

In addition, the outer wall formwork 10 fills the insertion hole 12 of the metal plate 11 with a welding rod and polished evenly in another building construction, and put the reinforcing piece 13 in the required position to form the insertion hole 12 If so, it is possible to easily recycle the expensive outer wall formwork (10) has the advantage of saving resources, as well as construction costs.

In addition, since the outer wall formwork 10 and the inner wall formwork 20 are assembled by pins (P) coupled to the outer engaging portion 37 and the inner engaging portion 31 of the connecting member 30, the structure is very Simple and easy assembly work. In addition, since the metal plate 11 of the outer wall formwork 10 is assembled by coupling the connecting member 30 and the pin (P), as in the prior art, the outer wall formwork 10 is assembled with the connecting member 30 when the operator's work. Inadvertently tightening excessively can be structurally prevented from bending the metal plate 11, there is an advantage that the wall surface of the concrete (C) to be poured is uneven and smooth.

According to the present invention as described above, the outer wall formwork 10 is unnecessary because a separate vertical support 17 in the coupling portion 30 coupling portion, it is possible to significantly reduce the required amount of the vertical support 17, of course, In another building construction, if the insertion hole 12 of the metal plate 11 is filled with a welding rod and the insertion hole 12 is formed at a necessary position, the expensive outer wall formwork 10 can be easily recycled, thus saving resources. There is an advantage in reducing construction costs.

In addition, the inner and outer wall formwork (10, 20) is assembled by fastening the pin (P) to the connection member 30, its structure is very simple and easy to assemble, the metal plate of the outer wall formwork (11) ) Is directly connected to the connection member 30, as in the prior art, it is possible to prevent the metal plate 11 is bent during the assembly operation, there is an advantage that the wall surface of the concrete (C) to be poured is smoothed.

Claims (2)

The outer wall formwork 10 and the inner wall formwork 20 are installed in parallel so as to be spaced apart by a predetermined interval by the bar-shaped connecting member 30, and the concrete C is disposed between the outer wall formwork 10 and the inner wall formwork 20. In the formwork for building to form a wall by pouring, the outer wall formwork 10 is a metal plate 11 having a plurality of insertion holes 12 through which the connection member 30 passes at predetermined intervals, and each insertion A communication hole 14 fixed to the metal plate 11 to be positioned outside the ball 12 and communicating with the insertion hole 12 is formed, and a coupling portion of the connection member 30 coupled through the insertion hole 12 is coupled. A formwork for building, characterized in that it comprises a plurality of reinforcing pieces (13) to reinforce, and a plurality of horizontal support (15) installed at a predetermined interval on the outer surface of the metal plate (11). The method of claim 1, wherein the insertion hole 12 of the metal plate 11 is composed of a narrow and long length long hole shape, the insertion hole 12 when the outer wall formwork 10 is reused in another building construction The formwork for building, characterized in that to melt the welding rod to fill and form the insertion hole (12) in different positions of the metal plate (11).