KR102170355B1 - Non-disband Mold assembly for fabricating the girder - Google Patents

Abstract

Provides a non-decomposable formwork assembly for construction purposes.
The present invention is a formwork assembly for constructing a beam that distributes the load of the slab under the slab, in which a lower support plate is bent at the lower end so as to be parallel to the ceiling surface of the slab, and at least one folded so that the plate members overlap each other. A formwork portion having a pair of left and right side plates protruding from the inner vertical surface of the folded portion, and forming a seating portion protruding at a certain height while the ends of the pair of lower support plates extending from the pair of left and right side plates facing each other are joined and fixed to each other; Equipped with a plurality of main reinforcing bars parallel in the longitudinal direction of the side plate, and a plurality of stirrup reinforcing bars that are mounted on the seating portion and supported in contact with the folding portion while fixing the position of the plurality of main reinforcing bars are formed between the left and right pair of side plates. It includes a reinforcing part inserted into the pouring space and embedded in the concrete to be filled in the pouring space.

Description

Non-disband Mold assembly for fabricating the girder}

The present invention relates to a non-decomposable formwork assembly for constructing a beam, and in more detail, the overall assembly and coupling structure is simple, and at the same time, the assembly work can be performed easily while increasing the bonding force between the components pre-assembled in the factory, and reinforcement The present invention relates to a non-destructive formwork assembly for beam construction that can stably fix reinforcing bars and minimize the number of copper bars by stably maintaining horizontality.

In general, in constructing a concrete building, a number of vertical columns that form the foundation while supporting the building are constructed, and a slab is constructed to form a ceiling or a floor by dividing each floor above the columns of each floor.

At this time, prior to construction of the slab, the load transmitted to the slab is distributed and distributed, while a beam, which is a horizontal girder, must be constructed to secure the support of the slab by transferring the load to the column. It can be said to be the foundation of the building.

On the other hand, in the construction of beams for distributing the load of the slab as described above, vertical columns are first constructed, and then each column is connected to each other by beams.To construct such a beam, a formwork connecting the upper part of a pair of columns on both sides is constructed. After installation, concrete was placed in the installed formwork on-site, and the formwork was separated and demolded after curing of the cast concrete.

However, the conventional method of constructing a beam using a formwork is structurally weak, so it is continuously supported by installing a large number of movable bars supporting the formwork at regular intervals under the formwork for constructing the beam until the concrete is cured. There was a problem that the work space could not be used efficiently because it had to be done.

In addition, the process of installing the formwork and demolding the formwork after curing the poured concrete takes an excessive amount of time, and the risk of safety accidents when installing and demolding the formwork located at a high place is high, as well as noise and scattering when demoulding the formwork. There was a problem that the work environment was not good because a lot of dust was generated.

(Patent Document 1) KR10-1009753 B1

(Patent Document 2) KR1186267 B1

In Patent Document 1, a lower plate formed in a rectangular shape having a length corresponding to the length of the beam structure to be constructed, has a length corresponding to the length of the lower plate, and the lower part is fixed to one side of the lower plate and erected on one side of the lower plate, and One or more first beads formed along the length direction are arranged to be spaced apart from each other along the width direction, and have a length corresponding to the length of the lower plate, and the lower end is fixed to the other side of the lower plate to the other side of the lower plate. The second side plate and the first bead and the second bead, which are erected in the longitudinal direction and arranged to be spaced apart from each other along the width direction of one or more second beads corresponding to the position of the facing first bead It provides a formwork for a beam structure including one or a plurality of side plate support members which are arranged horizontally and spaced apart from each other in the longitudinal direction, and both ends are coupled to each of the first and second beads corresponding to the horizontal direction.

However, this conventional formwork requires a plurality of side plate support members to connect them while maintaining a constant spacing between a pair of adjacent first and second side plates because the coupling force between the first and second side plates and the lower plate is weak. At the same time, both ends of the side plate support member were connected to the beads of the first and second side plate members.

Accordingly, the total number of components constituting the formwork increases and the overall structure becomes complex, while the process of pre-assembling the formwork in the factory by the operator becomes complicated, and there is a problem of lowering work productivity.

In addition, since the first and second side plates combined with the lower end cannot stand upright until concrete is placed, a separate support for supporting the first and second side plates is required, making the construction complex and cumbersome. There was a problem to be made.

In addition, when the first and second side plates and the lower plate are joined by welding without using a mounting support that supports the first and second side plates, the iron plate is deformed and the plating is peeled off due to heat generated during the welding operation. Has occurred.

In Patent Document 2, a pair of upper one side member and the other upper member manufactured by roll forming a hot-rolled coil are bolted to a lower member manufactured by roll forming with a hot-rolled coil, and the pair of upper one member and the upper other member are bonded to each other. Disclosed is a hybrid composite beam in which concrete is poured into the space formed by the and the lower member to be integrated.

However, in the process of pouring concrete into the inner space, such a conventional formwork has a lower plate and an upper horizontal plate horizontally formed at the part where the upper one side, the other shaft member and the lower member are bolted together, so that bubbles generated during concrete pouring are prevented from the lower plate and the lower plate. It is caught on the upper horizontal plate and remains inside the concrete, and since the process of removing these bubbles by a separate equipment must be followed, work productivity is lowered, and reinforcement and reliability are lowered by the bubbles remaining in the molded delivery part. There was a problem to make.

Accordingly, the present invention is to solve the above-described problems, the object of which is to simplify the overall assembly and coupling structure, and at the same time, it is possible to conveniently perform the assembly work in which the formwork structure and the reinforcing bar structure are combined at a construction site or a factory. , It is intended to provide a non-destructive formwork assembly for beam construction that can stably fix the reinforcing bar and minimize the number of copper bars by stably maintaining the horizontality.

In addition, another object of the present invention is to provide a non-destructive formwork assembly for beam construction that can prevent the formwork from being unfolded or deformed by internal pressure during concrete placement while reinforcing the self-standing function of the formwork pre-assembled before concrete pouring. I want to.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

As a specific means for achieving the above object, in a preferred embodiment of the present invention, in the formwork assembly for constructing a beam that distributes the load of the slab in the lower part of the slab, the lower support plate is placed in parallel with the ceiling surface of the slab. The ends of a pair of lower support plates extending from the pair of left and right side plates facing each other are provided with a pair of left and right side plates that are bent at the ends and formed to protrude on the inner vertical surface of at least one fold processed so that the plates overlap each other. A formwork that forms a mounting portion protruding to a certain height while fixing the joint; Equipped with a plurality of main reinforcing bars parallel in the longitudinal direction of the side plate, and a plurality of stirrup reinforcing bars that are mounted on the seating portion and supported in contact with the folding portion while fixing the position of the plurality of main reinforcing bars are formed between the left and right pair of side plates. It provides a non-decomposable formwork assembly for beam construction, characterized in that it includes a reinforcing reinforcing part inserted into the pouring space and embedded in the concrete filled in the pouring space.

Preferably, the formwork may include a connecting bar for maintaining a gap so as to withstand the side pressure of the concrete being poured while maintaining the gap between the left and right pair of side plates by connecting both ends to the folding part facing each other.

More preferably, the connection bar for maintaining the spacing may have bent ends bent at both ends of the left and right so as to correspond to the connection holes formed through the folding portion at a predetermined interval in the longitudinal direction.

More preferably, the bent end may include a detachment preventing protrusion so that external detachment from the connection hole is difficult.

Preferably, the reinforcing bar includes a stirrup reinforcing bar that is bent in a closed section so as to contact the folding portion while fixing the main reinforcing bar consisting of a plurality of upper and lower reinforcing bars, or while fixing the position of the main reinforcing bar consisting of a plurality of lower reinforcing bars. It may include a stirrup reinforcing bar that is bent in an open cross-section that is opened upward so as to contact the folding part.

Preferably, it comprises a seating frame that is placed on the seating portion under the stirrup reinforcing bar corresponding to the seating portion, and the seating portion is vertically bent upward from each end of a pair of lower support plates facing each other. It may include a pair of vertical bonding plates that are integrally bonded and fixed, and a pair of horizontal seating plates which are horizontally bent from the ends of the pair of vertical joining plates to place the seating frames.

More preferably, the seating frame may include protruding jaws bent at both ends so as to be in contact with the end of the horizontal seating plate.

According to the preferred embodiment of the present invention as described above has the following effects.

The overall assembly and connection structure by assembling the formwork consisting of a pair of left and right side plates, and the reinforcing part consisting of main and stirrup reinforcing bars, respectively, and then inserting and placing the reinforcement part so that it is placed on the seating frame in the seating part of the formwork. It is simple, and it is possible to increase the bonding force between the components, and because there is no need to fix the reinforcement part with a separate binding material or connect the formwork with a welding method, the pre-assembled formwork and the reinforcement part at the factory or construction site It is possible to increase work productivity by performing the assembly and assembly operation more simply and quickly, and reduce the work load of the operator, while preventing deformation or damage of the formwork made of thin plate.

The connection bar for maintaining the gap that connects to maintain the gap between the left and right pair of side plates constituting the formwork can sufficiently withstand the side pressure generated during concrete pouring, thereby preventing the deformation of the formwork during concrete placement and hardening.

By stably maintaining the horizontality of the formwork assembly connected to the slab formwork by the mounting part connecting the left and right pair of side plates and the mounting frame mounted thereon, the number of copper bars used to support the formwork assembly for the building construction can be reduced. Because it can be minimized, it is possible to increase the convenience of construction, reduce the time required for construction, and reduce maintenance costs.

Since the bubbles generated when concrete is poured are naturally raised to the top and removed, the occurrence of bubbles inside the formed beam is fundamentally prevented, and a separate bubble removal process can be eliminated. Therefore, the workability of the beams installed on the lower surface of the slab and You can increase the rigidity.

1 is an overall perspective view showing a non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a non-decomposable formwork assembly for the beam construction according to an embodiment of the present invention.
Figure 3 is a perspective view showing a formwork applied to the non-decomposable formwork assembly for the beam construction according to an embodiment of the present invention.
4 is a perspective view showing a reinforcement part applied to a non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.
5A and 5B are configuration diagrams showing a connection bar for maintaining a gap applied to a non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.
6 is a perspective view showing an assembly state between a reinforcing reinforcement part and a formwork part of another embodiment applied to a non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.
7A to 7E are flow charts for assembling and constructing a non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.
8 is an overall perspective view showing a state in which the upper bent plate is bent inward in the non-decomposable formwork assembly for beam construction according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in which a person of ordinary skill in the art can easily implement the present invention. However, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is said to be'connected' to another part, it is not only'directly connected', but also'indirectly connected' with another element in the middle. Include. In addition, "including" a certain component means that other components may be further included, rather than excluding other components unless specifically stated to the contrary.

The non-decomposable formwork assembly 100 for beam construction according to the first embodiment of the present invention is integrated with the slab so that a beam that distributes the load of the slab can be installed on the lower surface of the slab, as shown in FIGS. It may include a formwork portion 110 extending to form a beam, and a reinforcing reinforcement portion 120 buried in the concrete poured into the formwork.

As shown in Figs. 1, 2, and 3, the form part 110 is a pair of left and right side plates 111 that form a combined structure that is open to the top in a substantially c cross-section that is open to the top when the left and right are combined. ).

The left and right pair of side plates 111 are formed by bending the lower support plate 114 inwardly at the lower end to be parallel to the ceiling surface of the slab, and at least one folding part 112 which is folded to overlap each other. ) To protrude on the inner vertical surface.

The folding part 112 includes a plurality of connection holes 112a that are formed through at predetermined intervals in the longitudinal direction so as to be connected to the end of the connection bar 115 for maintaining the gap, which will be described later.

In addition, the upper end of the pair of left and right side plates 111 is provided with an upper bending plate 116 horizontally bent outwardly at the upper end so as to be parallel to the ceiling surface of the slab, and may be integrally provided on the ceiling surface of the slab. have.

In this case, the upper bent plate 116 has been illustrated and described as being bent at an approximately right angle toward the outside, but is not limited thereto, and may be formed by being bent at an approximately right angle toward the inside, as shown in FIG. 8.

Here, the left and right pair of side plates 111 are formed by a roll forming process using a metal thin plate material such as a hot-rolled coil or a cold-rolled coil having a thin plate thickness of 1.0 to 1.2T as a raw material. 112) is formed by folding a thin metal plate on the inner surface so as to protrude inward from the roll forming line, and at the same time, the lower support plate 114 and the upper bent plate 116 are also bent. Since this roll forming forming process is a known process for forming a thin metal plate, a detailed description thereof will be omitted.

At this time, the folding part 112 to be roll-formed has been illustrated and described as being overlapped so that the roll-formed metal plate materials are overlapped and in contact with each other, but is not limited thereto, and the folded metal plate materials may be overlapped with a gap.

In addition, a pair of lower support plates 114 extending inward from the lower end of the pair of left and right side plates 111 facing each other are joined and fixed to face each other and at the same time protrude to a certain height so that a seating frame 123 to be described later is raised. To form a seating portion 113 to be disposed.

Here, the seating portion 113 is a pair of vertical bonding plates 113a which are bent vertically at an approximately right angle upward from each end of a pair of lower support plates 114 facing each other to be integrally bonded and fixed, and the pair It includes a pair of horizontal seating plate (113b) that is horizontally bent from the end of the vertical bonding plate (113a) toward the fold.

Here, the vertical bonding plate 113a and the horizontal seating plate 113b bent at each end of the lower support plate 114 are also rolled forming a fold 112 on the inner side of the side plate 111 It is bent at the same time.

Accordingly, the left and right pair of side plates is a form-plate structure having a substantially c cross-section open to the top and the bottom surface sealed by mutual joint connection between the vertical joint plates of the seating portion bent at the end of the lower support plate at a construction site or factory. It is possible to manufacture a phosphorus form.

In addition, the formwork portion 110 is connected to a folding portion facing each other in the side plate 111 consisting of a pair of left and right, so that the distance between the left and right pair of side plates is kept constant, and at the same time, the side pressure caused by the concrete poured inside A plurality of spacing maintenance bars include a connection bar 115 so as to sufficiently withstand and prevent deformation of the formwork.

Both ends of the connection bar 115 may be respectively inserted into a plurality of connection holes 112a formed through the longitudinal direction of the folding portion facing each other to be connected.

As shown in FIG. 5A, the connection bar 115 for maintaining the gap includes a bent end 115a that is bent at a right angle to the left and right ends and is inserted correspondingly to the connection hole 112a to be connected or shown in FIG. 5B. As described above, the connection hole 112a may include a protrusion 115b for preventing separation so that the bent end 115a connected to the connection hole 112a is difficult to be separated from the outside.

At this time, the separation preventing protrusion 115b may be made of a protruding member on a conical cross-section having an outer diameter larger than the inner diameter of the connection hole 112a, and may be made of an elastic body that contracts and deforms when the connection hole is coupled to the connection hole.

Here, the connection bar 115 for maintaining the spacing is the spacing between the left and right pair of side plates in a state in which the reinforcing bar 120 is inserted and disposed between the left and right pair of side plates 111 of the formwork part 110 It is desirable to assemble before concrete pouring so that it can withstand the lateral pressure generated during concrete placement while maintaining the constant.

The reinforcing bar 120 is provided with a plurality of main reinforcing bars 121 arranged in the upper and lower portions in parallel in the longitudinal direction of the side plate as shown in FIGS. 1, 2, and 4, and the plurality of main reinforcing bars ( It is a reinforced skeletal structure comprising a stirrup reinforcing bar 122, which is a ribbed reinforcement material that is supported by being in contact with the folding part 112 while being placed on the seating part 113 while fixing the position 121.

This reinforcement reinforcement part 120 is inserted and arranged in a pouring space formed between the left and right pair of side plates 111, and then embedded in the concrete filled in the pouring space.

Here, the main reinforcing bar 121 is a plurality of upper reinforcing bars 121a that are positioned parallel to the upper portion of the stirrup reinforcing bar 122 that is bent in a substantially rectangular frame shape, and parallel to the lower portion of the stirrup reinforcing bar 122 It may include a plurality of lower reinforcement (121b) is fixed in position.

The reinforcement reinforcing part 120 includes upper and lower members so as to simultaneously fix the main reinforcement 121 made of upper and lower reinforcing bars 121a and 121b, as shown in FIGS. 1, 2 and 4, It has been described and illustrated as including a square frame-shaped stirrup reinforcement formed of a pair of left and right vertical members connecting both ends of the upper and lower members to be in contact with the folding part 112 and bent to have a closed cross-section. 6, a lower member for fixing the position of the main reinforcing bar 121 made of a lower reinforcing bar 121b, and a pair of left and right vertical members bent upward at both ends of the lower member so as to contact the folding part. It may include a stirrup reinforcing bar 124 of a c shape that is bent to have an open cross-section open to the top.

At this time, at one corner of the upper end of the stirrup reinforcing bar 122 that is bent in a square frame shape to have a closed cross section by using one reinforcing bar having a certain length, it is bent while being integrally connected with one of the plurality of upper rebars. It may include a bent connection end (122a) to be formed.

In addition, the reinforcement reinforcement part 120 includes a seating frame 123 that is stably mounted and disposed on the seating portion 113 under the stirrup reinforcing bar corresponding to the seating portion 113, and the seating portion 113 is a pair of vertical bonding plates 113a that are integrally bonded and fixed to bond each end of the pair of lower support plates 114 facing each other, and horizontally bent from the ends of the pair of vertical bonding plates. It includes a pair of horizontal seating plate (113b) on which the seating frame 123 is raised.

Here, the left and right ends of the seating frame 123 provided in parallel with the main reinforcing bar in the lower center of the stirrup reinforcing bar 122 are in contact with the ends of the horizontal seating plate 113b and are formed to be bent at approximately right angles so that the position is fixed. It is preferable to include a jaw (123a).

This seating frame 123 has been illustrated and described as being made of one frame member parallel to the main reinforcing bar and having the same length as the length of the side plate constituting the formwork, but is not limited thereto and may be formed of at least two or more dividing members. have.

In addition, the reinforcement reinforcement part 120, which is a reinforced skeleton structure made of a main reinforcement made of upper and lower reinforcement and a stirrup reinforcing bar to place them, may be pre-fabricated at a construction site or factory, and the seating frame 123 Also, it may be integrally welded to the stirrup reinforcement at the construction site or factory, or may be fixed by being bound with a binding material such as wire.

In addition, the plurality of folding portions 112 protruding from the inner surface of the left and right pair of side plates 111 are shown and described as being folded to have the same length so as to simultaneously contact the left and right vertical members of the stirrup reinforcing bar. It is not limited, and some of the plurality of folds may be folded to have a relatively short length, or the number of folds may be minimized.

At this time, at the ends of the folds corresponding to the left and right vertical members of the stirrup reinforcement, a concave groove in which the vertical members of the stirrup reinforcing bars are correspondingly inserted and arranged to minimize and prevent the movement of the reinforcing member during concrete pouring may be formed.

Meanwhile, the form part 110 and the reinforcement part 120 constituting the non-destructive formwork assembly 100 for beam construction according to the embodiment of the present invention are pre-assembled at a construction site or factory, respectively, and then a welding method or a binding method They are easily combined and merged without application.

That is, as shown in FIG. 7A, in a state in which a pair of left and right side plates 111 are arranged to face each other, by contacting and fixing vertical joining plates 113a bent at each end of the lower support plate 114 facing each other. , The formwork part 110 opened to the top is pre-assembled at a construction site or a factory while forming the seating part 113 protruding upward at a certain height on the sealed floor surface.

As shown in Figure 7b, a reinforcement part 120 in which a plurality of main reinforcing bars are integrally fixed to a plurality of stirrup reinforcing bars 122 bent to have a closed or open section, and a seating frame is integrally fixed to the stirrup reinforcing bars. ) Is pre-assembled at the construction site or factory.

In succession, as shown in Fig. 7c, by correspondingly inserting and arranging the reinforcing reinforcing part 120 between the pair of left and right side plates 111 constituting the pre-assembled form part 110 at a construction site or factory, respectively, The seating frame 123 of the reinforcing bar is mounted on the seating portion 113 of the formwork and is stably seated, and the vertical members on the left and right sides of the stirrup reinforcing bar, which are the left and right sides of the reinforcing bar, are supported while contacting the end of the folding part 112 It is possible to manufacture and complete the beam formwork assembly 100 consisting of a formwork part and a reinforcement part.

In this state, as shown in FIG. 7D, by connecting both ends of the connection bar for maintaining the gap to the connection hole formed in the folding portion of the pair of left and right side plates 111 facing each other, the gap between the left and right pair of side plates It is possible to prevent the deformation of the formwork due to the side pressure generated during concrete pouring while maintaining constant.

Finally, as shown in Fig. 7e, after connecting the beam formwork assembly 100 with a slab formwork (not shown) at the site, the concrete extending to the slab (S) into the pouring space inside the formwork part If it is poured and hardened, it is possible to complete the construction of an integrated beam that distributes the load from the lower surface of the slab (S).

On the other hand, it has been illustrated and described as constructing an integrated beam by one pouring process in the pouring space inside the formwork, but it is not limited thereto, and by pre-construction of floor concrete that is cast and hardened at a certain height from the bottom of the formwork. In the process of supporting the formwork assembly 100 on the upper end of the copper bar in order to install the beam on the lower surface of the slab, the pre-formed floor concrete prevents the lower sagging and bending deformation of the formwork assembly, and at the same time stabilizes the horizontality of the formwork assembly. It can be secured.

Due to this, it is possible to increase work productivity by minimizing the number of copper bars and installations supporting the formwork assembly, and increase the construction performance of the beams installed on the lower surface of the slab.

At this time, the floor concrete pre-installed on the bottom surface of the formwork is hardened after the concrete is poured to a height corresponding to the lower position of the stirrup reinforcing bar so that the mounting part of the formwork and the mounting frame of the reinforcing bar are integrated with each other. It is desirable.

In addition, it is possible to increase the structural strength and rigidity of the formwork assembly 100 made of a thin steel plate material by the floor concrete pre-installed at a certain height on the bottom surface of the formwork, and finally the site by floor concrete pre-construction at the construction site or factory. In order to construct the beam that is connected to the slab, the amount of concrete to be poured can be reduced to reduce the construction time.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

110: formwork
111: side plate
112: folding part
113: seat
114: lower support plate
116: upper curved plate
120: reinforcement part
121: main reinforcement
121a,121b: upper and lower reinforcement
123: seating frame
122,124: stirrup rebar
S: slab

Claims (7)

In the formwork assembly for constructing a beam that distributes the load of the slab under the slab,
The lower support plate is bent at the lower end so as to be parallel with the ceiling surface of the slab, and a pair of left and right side plates facing each other with a pair of left and right side plates protruding from an inner vertical surface of at least one folded portion processed to overlap each other. A formwork for forming a seating portion protruding at a predetermined height while the ends of the pair of lower support plates extending from each other face each other and are fixedly bonded;
Equipped with a plurality of main reinforcing bars parallel in the longitudinal direction of the side plate, and a plurality of stirrup reinforcing bars that are mounted on the seating portion and supported in contact with the folding portion while fixing the position of the plurality of main reinforcing bars are formed between the left and right pair of side plates. Includes a reinforcement part inserted into the pouring space and embedded in the concrete filled in the pouring space,
The reinforcing reinforcement portion includes a stirrup reinforcing bar that is bent in a closed cross-section so as to be in contact with the folding portion while fixing the main reinforcing bar composed of a plurality of upper and lower reinforcing bars, or while fixing the position of the main reinforcing bar composed of a plurality of lower reinforcing bars A non-decomposable formwork assembly for a beam construction, characterized in that it comprises a stirrup reinforcing bar that is bent in an open cross-section that is open to the top so as to be in contact with. In the formwork assembly for constructing a beam that distributes the load of the slab under the slab,
The lower support plate is bent at the lower end so as to be parallel with the ceiling surface of the slab, and a pair of left and right side plates facing each other with a pair of left and right side plates protruding from an inner vertical surface of at least one folded portion processed to overlap each other. A formwork for forming a seating portion protruding at a predetermined height while the ends of the pair of lower support plates extending from each other face each other and are fixedly bonded;
Equipped with a plurality of main reinforcing bars parallel in the longitudinal direction of the side plate, and a plurality of stirrup reinforcing bars that are mounted on the seating portion and supported in contact with the folding portion while fixing the position of the plurality of main reinforcing bars are formed between the left and right pair of side plates. Includes a reinforcement part inserted into the pouring space and embedded in the concrete filled in the pouring space,
And a seating frame mounted and disposed on the seating portion below the stirrup reinforcing bar corresponding to the seating portion,
The seating portion is formed vertically bent upward from each end of the pair of lower support plates facing each other to be integrally bonded and fixed, and the seating frame is horizontally bent from the end of the pair of vertical joining plates. It is characterized in that it comprises a pair of horizontal seating plate to be disposed, a non-decomposable formwork assembly for bosic construction. The method of claim 2,
The seating frame includes a protruding jaw bent at both ends so as to be in contact with the end of the horizontal seating plate. The method according to claim 1 or 2,
The formwork part is a non-decomposable formwork assembly for beam construction, characterized in that both ends are connected to the folding part facing each other to maintain the gap between the left and right pair of side plates and a connection bar for maintaining the gap to withstand the lateral pressure of the concrete to be poured. The method of claim 4,
The connection bar for maintaining the spacing is a non-decomposable formwork assembly for a beam construction, characterized in that the bending ends are bent at both left and right ends so as to correspond to the connection holes formed through the folding portion at a predetermined interval in the longitudinal direction. The method of claim 5,
The bent end is a non-decomposable formwork assembly for a boscheong, characterized in that it comprises a protrusion for preventing separation so that it is difficult to escape from the connection hole. delete

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