JPH068602U - Formwork for concrete building - Google Patents

Abstract

(57) [Abstract] [Purpose] To form a concrete building formwork that integrally forms columns and walls, reduce the construction work of the wall formwork on site, and shorten the construction period. [Structure] Through holes 3 are bored in parallel with each other at a predetermined interval in the length direction in a wall abutting portion 2 of a pillar scrap frame 1 installed on an existing floor slab. The mounting brackets 7 and 10 having an L-shaped cross section are fixed along the edges of the wall contact portion 2. The molds for walls 5 and 6 are installed on the fittings 7 and 10 to form a mold 13 for molding a concrete structure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reinforced concrete building formwork for building beams and walls of concrete structures, or for building columns and walls.

[0002]

[Prior art]

 Conventionally, in the case of using a steel scrap column and a beam scrap frame in a reinforced concrete structure, when constructing a wall scrap frame on a pillar scrap beam or a scrap beam form, Open the entire wall abutting surface of the column waste formwork or the beam waste formwork, and fix the plate material for the wall formwork to the column waste formwork or the beam wasteform form at the construction site. Was constructing a formwork for concrete construction.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional technique, since the wall abutting surface of the column waste form frame or the beam waste form frame is opened over the entire surface, the column waste form frame or the beam waste form frame is divided at this portion, and the structure There was a problem that it became weak. Furthermore, the work of assembling the wall formwork according to the predetermined wall thickness at the construction site, the work of connecting the wall formwork and the column waste formwork, and the connection of the wall formwork and the beam formwork. There was a problem that the work to tie it was complicated.

[0004]

[Means for Solving the Problems]

 However, in this invention, the scrap frame for the wall or the scrap frame for the beam having the through hole is installed with the scrap frame for the wall, or the scrap frame for the column or the scrap beam for the beam having the through hole is formed. Since the mounting bracket was fixed to the mold, the above problems were solved.

That is, according to the present invention, through holes are formed in parallel with each other at predetermined intervals in the length direction in the wall abutting portion of the pillar formwork installed on the existing floor slab, and It is a formwork for concrete construction characterized in that a formwork for walls is installed along the edge of the contact part. Further, through holes are formed in parallel with each other in the lengthwise direction at predetermined intervals in the wall abutting portion of the beam discarding frame, and the wall forming frame is installed along the edge of the wall abutting portion. It is a formwork for concrete building that is characterized by.

Further, through holes are formed in parallel with each other at a predetermined interval in the length direction in the wall abutting portion of the pillar formwork to be installed on the existing floor slab, and the wall abutting portion edge is formed. It is a concrete structure molding formwork characterized in that mounting brackets are fixed along it. In addition, through holes are formed in parallel with each other in the lengthwise direction at predetermined intervals in the wall abutting portion of the beam discard frame, and mounting brackets are fixed along the edges of the wall abutting portion. It is a mold for molding concrete structures.

Further, the diameter of the through hole is larger than the thickness of the wall to be formed, and the installation interval of the through holes is larger than the diameter of the through hole. The above-mentioned diameter refers to the diameter when the through hole is circular, and refers to the length in the direction perpendicular to the length direction of the wall contact portion when the through hole has a shape other than the circular shape.

[0008]

[Action]

 Since the through-holes are formed at a predetermined interval, the column scrap mold and the beam mold can maintain a predetermined shape before and after the concrete is poured. Further, since the through hole is formed, it is possible to insert the through hole to arrange the bar between the column scrap mold and the wall mold and between the pillar scrap mold and the wall mold. It is possible to cast concrete inside the beam waste form and the wall form and inside the beam waste form and the wall form.

Further, when the mounting metal fitting is fixed to the pillar formwork or the beam formwork, the surface having the through holes can be reinforced and the mounting position of the wall formwork is indicated. Installation with can be simplified.

[0010]

Embodiment 1 An embodiment of the present invention will be described with reference to FIGS. 1 to 4.

Along the wall abutment portion 2 of the pillar formwork 1 that can be installed on the slab on the existing floor, in the length direction of the pillar formwork _1, a circular through hole 3, 3 having a diameter D ₁ is formed. Are drilled in parallel at predetermined intervals. In the above, the diameter D ₁ of the through hole 3 is formed larger than the thickness T ₁ of the wall to be formed. Further, in the above description, the distance L ₁ between the centers of the adjacent through holes 3, 3 is formed larger than the diameter D _{1 of the through} hole 3.

The wall molds 5 and 6 are arranged at intervals according to the thickness T ₁ of the wall to be formed in the wall abutting portion 2. One piece 8 of the attachment tool 7 having an L-shaped cross section is fixed to the inside of the edge 5a of the wall form 5, and the other piece 9 of the attachment 7 is projected to the outside of the wall form 5. Located in. Similarly, one piece 11 of the mounting bracket 10 having an L-shaped cross section is fixed to the inside of the edge portion 6a of the wall forming frame 6, and the other piece 12 of the mounting bracket 10 projects to the outside of the wall forming frame 5. Position it as you would.

Next, the other piece 9 of the mounting member 7 to which the wall form 5 is connected and the other piece 12 of the mounting member 10 to which the wall form 6 is connected are fixed to the wall abutting portion 2, respectively. In the above description, the side edge 9a of the other piece 9 of the mounting member 7 is located outside the edge of the through hole 3. Similarly, the side edge 12a of the other piece 12 of the mounting member 10 is located outside the edge of the through hole 3. That is, both ends of the through hole 3 are closed by the other piece 9 of the mounting member 7 and the other piece 12 of the mounting member 10 (FIG. 2 (b)).

As described above, the concrete structure forming frame 13 in which the column frame 1 and the wall frames 5 and 6 are connected to each other is configured (FIG. 1 and FIG. 2A).

Next, the use of the concrete structure forming mold 13 of the present invention based on the above embodiment will be described.

A concrete structure forming formwork 13 is installed on an existing floor slab in which predetermined pillar reinforcements 14 are laid out so that the pillar reinforcements 14 are located in the waste formwork 1 for columns. The reinforcing bars 15 for walls are laid in the molds 5 and 6 for walls, and a part 15a of the reinforcing bars 15 for walls is projected through the through holes 3 and 3 toward the reinforcing bars 14 for pillars. Fix it on. After constructing other reinforcements and formwork, each formwork is clamped with a predetermined form tie and clamp, and a predetermined concrete is placed in the concrete structure forming formwork 13. At this time, the concrete can be connected between the scrap mold 1 for the pillar and the molds 5 and 6 for the wall to construct a concrete skeleton in which the pillar and the wall are integrated. Further, in the above description, since the through holes 3 are bored at a predetermined interval, the waste formwork for pillars is used at the time of transporting the concrete structure forming formwork 13, at the site assembly, and at the time of placing concrete. It is possible to maintain a predetermined shape without the risk of 1 being distorted.

Although the through hole 3 is circular in the above-described embodiment, other shapes can be used if the maximum length in the lateral direction is D ₁ and the holes are formed at predetermined intervals.

In addition, in the above-described embodiment, after the mounting metal fittings 7 and 10 are fixed to the wall molds 5 and 6, the mounting metal fittings 7 and 10 are fixed to the wall abutting portion 2 of the column waste mold 1. However, it is also possible to install the wall molds 5 and 6 on the mounting brackets 7 and 10 after fixing the mounting brackets 7 and 10 to the wall abutting portion 2 of the column scrap frame 1.

In addition, although the assembled concrete building formwork 13 in the above-mentioned embodiment is installed on the existing floor slab, the mounting fittings 7 and 10 are fixed to the scrap formwork 1 for the pillar. The wall formwork 6 is fixed or abutted on one mounting fixture, for example, the mounting fixture 10, and is installed on the existing floor slab, and after arranging a predetermined wall reinforcing bar 15, the other wall formwork It is also possible to fix or abut 5 to the mounting member 7 to form a concrete structure molding formwork 13 (FIG. 4).

Further, in the above-described embodiment, the wall molds 5 and 6 and the column scrap mold 1 are fixed to each other via the mounting brackets 7 and 10. However, as shown in FIG. The fixing portions 5b and 6b can be formed by bending the edges of 6 outwardly at right angles. In this case, the mounting brackets 7 and 10 are not necessary, and the fixing portions 5b and 6b are fixed to the wall abutting portion 2 of the column scrap frame 1. In this case, the mounting brackets 7 and 10 can be omitted.

Further, in the above-mentioned embodiment, the concrete form 1 and the wall forms 5 and 6 are connected to each other to form the concrete structure forming form 13. It is also possible to fix 7 and 10 to form the concrete structure molding frame 17 (FIGS. 5A and 5B). In this case, the concrete structure forming formwork 17 is installed on the construction site, the predetermined wall reinforcing bars are arranged, and the other pieces 9 and 12 of the mounting brackets 7 and 10 are provided with the predetermined wall formwork 5, 6 is abutted and locked, and the wall forms 5, 6 are reinforced with foam ties or the like so as to maintain the shape. In this case, the wall molds 5 and 6 can be made of steel plate, wood, or any other material.

[0022]

Second Embodiment Another embodiment of the present invention will be described with reference to FIGS. 6 to 10.

The length of the scrap frame 21 for a beam is along the wall contact portion 22 of the lower surface 21 a of the scrap frame 21 for a beam, which has a substantially U-shaped cross section and is bent at its upper end to form horizontal portions 24, 24. In the direction, circular through holes 23 having a diameter D ₂ are formed in parallel at predetermined intervals. In the above, the diameter D _{2 of the} through hole 3 is formed larger than the thickness T ₂ of the wall to be formed. Further, in the above description, the distance L ₂ between the centers of the adjacent through holes 3 and 3 is formed to be larger than the diameter D _{2 of the through} holes 3.

The wall forms 25 and 26 are arranged at intervals according to the thickness T ₂ of the wall to be formed in the wall abutting portion 22. One piece 28 of the mounting bracket 27 having an L-shaped cross section is fixed to the inside of the upper edge 25a of the wall forming frame 25, and the other piece 29 of the mounting bracket 27 is projected to the outside of the wall forming frame 25. Position it. Similarly, one piece 31 of the mounting bracket 30 having an L-shaped cross section is fixed to the inside of the upper edge portion 26a of the wall forming frame 26, and the other piece 32 of the mounting bracket 30 is attached to the outside of the wall forming frame 25. Position so that it projects.

Next, the other piece 29 of the mounting member 27 to which the wall form 25 is connected and the other piece 32 of the mounting member 30 to which the wall form 26 is connected are fixed to the wall abutting portion 22, respectively. In the above description, the side edge 29a of the other piece 29 of the mounting member 27 is located outside the edge of the through hole 23. Similarly, the side edge 32a of the other piece 32 of the mounting member 30 is located outside the edge of the through hole 23. That is, both ends of the through hole 23 are closed by the other piece 29 of the mounting member 27 and the other piece 32 of the mounting member 30 (FIG. 7B).

As described above, the concrete building mold 33 in which the beam mold 31 and the wall molds 25 and 26 are connected is configured (FIG. 6, FIG. 7A).

Next, the use of this invention based on the above embodiment will be described.

In a state in which the mounting bracket 27 and the mounting bracket 30 are fixed to the wall abutting portion 22 of the beam scrap 21 and only one of the wall molds 26 is fixed to the mounting bracket 30 (FIG. 8), The beam form 21 is hooked to the column form or other beam form constructed on the existing floor slab (not shown). A predetermined wall reinforcing bar 35 is laid out, and a part 35a of the wall reinforcing bar 35 is projected through the through holes 23, 23 toward the beam scrap frame 21 side. Further, a predetermined beam reinforcing bar 34 is laid in the beam scrap frame 21, and a part 35a of the wall reinforcing bar 35 is fixed in the beam reinforcing bar 34. Next, the wall form 25 is fixed to the mounting bracket 27 (FIG. 7A).

After constructing other reinforcements and molds, each mold is tightened with a predetermined form tie and clamp, and a predetermined concrete is placed in the concrete structure forming mold 33. At this time, the concrete communicates between the scrap mold 21 for the beam and the molds 25, 26 for the wall to construct a concrete frame in which the beam and the wall are integrated. At this time, as in the first embodiment, since the through holes 23 are formed at a predetermined interval, the beam is used at the time of transportation of the concrete structure forming form 33, at the site of assembly, and at the time of placing concrete. It is possible to maintain the predetermined shape without the risk that the scrap frame 21 will be distorted.

In the above-described embodiment, the other configurations of the through holes 23 and the wall frames 25 and 26 are the same as those of the first embodiment.

Further, in the above-described embodiment, after the mounting brackets 27 and 30 are fixed to the wall molds 25 and 26, the mounting brackets 27 and 30 are fixed to the wall abutting portion 2 of the beam discard frame 21. However, it is also possible to install the wall molds 25, 26 on the mounting brackets 27, 30 after fixing the mounting brackets 27, 30 to the wall abutting portion 22 of the beam scrap frame 21.

Further, in the above-described embodiment, the concrete form forming mold 33 is constituted by connecting the beam scrap mold 21 and the wall molds 25 and 26, but is attached to the beam scrap mold 21. It is also possible to fix the metal fittings 27 and 30 to form a concrete structure molding form 37 (Figs. 9 (a) and 9 (b)). In this case, a concrete building forming frame 37 is installed at the construction site, a predetermined wall reinforcing bar is arranged, and the other pieces 29, 32 of the mounting brackets 27, 30 are provided with the predetermined wall form 25, 26 is abutted and locked, and the wall forms 25, 26 are reinforced by foam ties or the like so as to maintain the shape. Further, in this case, the wall molds 25 and 26 can be made of a steel plate, wood, or any other material.

Further, in the above-described embodiment, as shown in FIG. 10, the column waste mold 1, the beam waste mold 21, and the wall molds 25 and 26 may be integrally formed. That is, the notch 4 for locking the beam is formed in the scrap frame 1 for the pillar of the first embodiment, and the mounting brackets 7 and 10 are fixed at predetermined positions. Further, the mounting brackets 27 and 30 are fixed to the predetermined positions of the scrap frame 21 of the second embodiment. The scrap frames 1 and 1 for columns are installed at predetermined positions, and the both side edges of the mold 2 for one wall are brought into contact with the mounting brackets 30 and 30 of the scrap models 1 and 1 for column, respectively, and are stacked. Next, after arranging a predetermined wall reinforcing bar (not shown), both side edges of the other wall form 25 are brought into contact with the mounting brackets 27, 27 of the column scrap frames 1, 1 respectively to be overlapped. . Next, both ends 21a and 21a of the beam scrap 21 are hooked to the notches 4 of the pillar scrap molds 1 and 1, respectively, and the fittings 27 and 30 and the wall molds 25 and 26 are The respective upper ends 25a and 26a are brought into contact with each other and overlapped to form a concrete structure forming form 38 (FIG. 10).

[0034]

[Effect of device]

 In this invention, through holes are formed in parallel with each other in the lengthwise direction at predetermined intervals in the wall abutment portion of the column scrap frame, and the wall scrap frame is fixed along the edge of the wall abutment portion. Therefore, there is an effect that it is possible to construct a concrete structure forming formwork that integrally forms “pillar and wall”, “beam and wall”, and “pillar and beam and wall”. Further, since the work of constructing the wall formwork on the site can be reduced, there is an effect that the construction period can be shortened.

[Brief description of drawings]

FIG. 1 is an assembly diagram of an embodiment of the present invention.

FIG. 2 (a) is a cross-sectional view of the same use state,
(B) is an enlarged front view of the wall abutting portion of the post-use scrap frame.

FIG. 3 is a perspective view of another wall form of the same.

FIG. 4 is a perspective view of the same during assembly.

FIG. 5 is a perspective view of another embodiment of the present invention,
(B) is a front view.

FIG. 6 is an assembly view of another embodiment of the present invention.

FIG. 7 (a) is a vertical cross-sectional view of the same use state,
(B) is an enlarged bottom view of the wall abutting portion of the scrap frame for the beam.

FIG. 8 is a perspective view of the same during assembly.

FIG. 9 is another embodiment of the present invention, (a) is a perspective view,
(B) is a bottom view.

FIG. 10 is an assembly view of another embodiment of the present invention.

[Explanation of symbols]

 1 Pillar Formwork 2 Wall Abutment 3 Through Hole 5, 6 Wall Formwork 7, 10 Mounting Bracket 13 Concrete Building Formwork 17 Concrete Building Formwork 21 Beam Disposing Formwork 22 Wall Abutting part 23 Through hole 25, 26 Wall formwork 27, 30 Mounting bracket 33 Concrete building formwork 37 Concrete building formwork 38 38 Concrete building formwork

Claims (5)

[Scope of utility model registration request] 1. A through hole is formed in a wall abutting part of a column scrap frame installed on an existing floor slab in parallel at a predetermined interval in a length direction, and a hole is formed at an edge of the wall abutting part. A formwork for molding concrete structures, characterized in that a formwork for walls is installed along it. 2. A through hole is formed in the wall abutment portion of the beam form frame in parallel at a predetermined interval in the length direction, and the wall form frame is formed along the edge of the wall abutment portion. A mold for molding concrete structures characterized by being installed. 3. A through hole is formed in parallel in the wall abutting portion of a pillar formwork installed on an existing floor slab at a predetermined interval in the length direction, and the wall abutting portion has an edge at the edge thereof. A mold for molding concrete structures, characterized by fixing mounting brackets along it. 4. A through hole is formed in the wall abutting portion of the beam form frame in parallel at predetermined intervals in the lengthwise direction, and a mounting bracket is fixed along the edge of the wall abutting portion. A mold for molding a concrete structure, which is characterized by that. 5. The concrete according to claim 1, wherein the diameter of the through hole is larger than the thickness of the wall to be formed, and the installation interval of the through holes is larger than the diameter of the through hole. Formwork for building structures.