JP4067091B2 - Residual perforated frame for formwork, concrete frame and concrete frame construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a residual porous frame for a mold for forming a concrete frame and a method for constructing the concrete frame.
[0002]
[Prior art]
Conventionally, the surface has a decorative surface such as an uneven surface, and a connecting portion such as a nut that connects the remaining frames for the formwork to the back side or a separator such as a reinforcing bar to support the standing posture of the assembled formwork is welded. A residual concrete decorative frame for a mold and a residual concrete flat frame for a non-decorative mold, and a residual concrete decorative frame for the mold, which is provided with a separator mounting portion such as a bolt for fixing with A concrete frame construction method is known in which concrete is cast by forming a mold frame with a residual concrete flat frame for a mold frame, and the mold frame is left in the concrete frame as it is.
[0003]
[Problems to be solved by the invention]
The above-described prior art is a safe construction method that allows the operator to continuously work at a height without risk of falling because the separator is fixed to and supported by a connecting bracket that connects the remaining concrete flat frames. There were the following drawbacks.
First, since the remaining concrete flat frame is made of concrete, one piece has a heavy weight of 50 kg to 78 kg, and movement and installation on the site must be performed by heavy machinery and multiple workers. When assembling the frame, moving and transporting with multiple pieces connected by connecting brackets pulls out the embedded nut that fixes the connecting bracket due to its weight and damages the concrete flat frame one by one. It is unavoidable that it must be lifted and assembled one by one, and the work and construction efficiency is very poor. Since the frame has disadvantages such as being expensive, there is a disadvantage that the material cost becomes high.
Secondly, when forming a long concrete frame, it is divided into several times, and the jointing work is performed by adding the concrete frame sideways. Since the jointing surface must be flattened, the joint surface is flat and the joint is likely to be a defect in the structural strength of the concrete frame as well as cracks. In order to solve this problem, it is necessary to apply high-pressure jet water to make the flat joint surface uneven. This work is done at the height of the scaffolding as you go upward. It had the following disadvantages: skilled carpenter work, placement of skilled workers, installation and removal of scaffolding and formwork, risk of falling.
Thirdly, the concrete flat frame that forms the corner of the formwork is cut to the appropriate length or slope, but the adverse effects on the health of workers due to dust during the cut, cut However, there is a drawback that it is necessary to deal with the processing of the remaining residue.
Fourth, in order to support the posture of the connected and assembled frame, a separator such as a reinforcing bar is welded to the frame, but the welded part is welded to the contact point between the separator and the bolt that protrudes horizontally or the edge of the frame. Therefore, there is a drawback that poor welding and insufficient welding strength are likely to occur, which gives anxiety in strength to those who observe the welded portion small.
[0004]
In view of the conventional drawbacks as described above, the present invention realizes high construction efficiency and safe workability, as well as the remaining perforated frame for forming a mold, a concrete frame, and a concrete frame that realizes reduction of material cost and construction cost. It aims to provide a method.
[0005]
The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a residual porous frame for forming a concrete mold for casting, which may be moved in a state of being connected by a plurality of bolts, welding or connecting metal fittings. An opening frame made of a strong metal member that is not easily damaged or deformed, and a plurality of notches arranged in a metal plate stretched or stretched over the opening frame so as to cover the opening The cast concrete fluid such as the substantially inclined hole formed by stretching the metal plate and the hole formed by the jaw-shaped part formed by extruding the cut portion is difficult to leak outside and is filled with concrete. A perforated plate in which a large number of holes for forming concrete small protrusions are arranged , a frame connecting portion formed by threading a male screw into which the nut is screwed to connect the opening frames with a nut, and the opening frame Figure of body Constitute a mold for forming the remaining porous frame at a coupling means that can be or L form of L form comprising a separator welds welding the separators, such as reinforcing bars for supporting the.
[0007]
Also, an opening frame, and a hole formed between the inclined walls formed by extending the metal plate by arranging a large number of cuts in the metal plate, which are stretched or stretched so as to cover the opening. Or, the cast concrete fluid such as the hole formed by the jaw-shaped part formed by extruding the cut part formed in the metal plate is difficult to leak to the outside and the concrete is filled to form a small concrete protrusion. Residual perforated mold frame comprising a perforated plate having a large number of holes arranged therein, residual concrete decorative frame for formwork, and a portion that is hidden by contact with the ground, such as a concealed part, and the remaining perforated formwork A hidden residual formwork part formed by connecting and assembling the frame, a residual formwork comprising an exposed residual formwork part formed by connecting and forming the residual concrete decorative frame for the formwork, which is exposed from the ground and forms a landscape. The concrete frame is composed of the concrete filled in the remaining formwork.
[0008]
Also, an opening frame body, and a hole formed between the inclined walls formed by extending the metal plate by arranging a large number of cuts in the metal plate, which are stretched or stretched so as to cover the opening. Or, the cast concrete fluid such as the hole formed by the jaw-shaped part formed by extruding the cut part formed in the metal plate is difficult to leak to the outside and the concrete is filled to form a small concrete protrusion. Connect the remaining perforated formwork frame, which consists of a perforated plate with a large number of holes arranged, to the part buried in the ground, and support the posture with a separator such as a reinforcing bar inside the assembly to form a hidden remaining formwork part The hidden residual formwork forming step, the underground concrete placing step for placing concrete in the hidden residual formwork portion, and the underground concrete frame placed in this underground concrete placing step are cured. In the state, connect the remaining concrete decorative frame for the formwork to the part exposed on the front surface, and support the posture with a separator such as a reinforcing bar on the inside of the assembly, and the unexposed part such as the surface hidden in the ground and the concrete joint surface An exposed residual mold part forming step of forming an exposed residual mold part on the inner side of the hidden residual mold part by supporting a posture with a separator such as a reinforcing bar on the inner side of the assembled residual porous frame for use, and the exposed residual mold part The construction method of the concrete frame is composed of the above-mentioned concrete placing process for placing concrete on the ground.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
[0010]
In the first embodiment of the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a residual porous frame for a mold (hereinafter also referred to as “residual porous frame”), and this residual porous for a mold Frame 1 is made of L steel and has a square opening frame 2 of 1200 mm × 600 mm × bone width 40 mm or 900 mm × 1800 mm × bone width 55 mm or 400 mm × 400 mm × thickness 3.2 mm Further, a metal plate having a thickness of approximately 0.5 mm to 1.5 mm, which is welded and stretched so as to cover the opening on the front side of the opening frame body 2, is stretched to have a substantially hexagonal shape. An inclined wall 4 having an inclination of 45 degrees and a wall width of 5 mm, which is formed in an open shape so that the cast concrete fluid 3 is less likely to leak and is filled with concrete to form a concrete small protrusion 20. Approximate hexagonal hole width 35 formed between 4 In order to connect the perforated plate 7 having a substantially lattice shape in which a large number of substantially inclined holes 6 are alternately arranged in series and the opening frame bodies 2 to each other with bolts, the right and left upper and lower parts of the opening frame body 2 are appropriately arranged. It comprises a female threaded portion 8 comprising a nut member and a threaded hole provided, and a threaded hole 9 for connecting frames suitably provided on the side, top and bottom of the opening frame 2 with bolts. ing. The weight of the opening frame 2 is 1200 mm × 600 mm × 40 mm, and the porous plate has a thickness of 0.8 mm and is 12 kg.
The perforated plate may be, for example, a perforated plate or a perforated plate formed by arranging a large number of cuts in a metal plate and projecting the cut portions to form a number of jaw-shaped holes. In this case, the weight of the residual porous frame for molds is about 15 to 16 kilograms.
There are various types of opening frame bodies such as C steel, square pipe steel, wood, synthetic resin, and combinations thereof.
[0011]
The connection assembly of the residual porous frame 1 for molds is carried out by setting up anchor bolts 11 on the base 10 with the connecting body 50a in which several pieces of the 1 are connected in advance, and screwing them up with the one indicated as “up”. The anchor bolt 11 is passed through the hole 9 and fixed to the foundation with the nut 12.
The remaining perforated mold frames 1 are connected to each other by a connecting metal fitting 14 made of flat steel and having screw through holes 13 corresponding to the four female screw portions 8.
The remaining perforated frame 1 for molds is placed side by side on the foundation, with the fittings 14 straddling both frames at the bottom and top, and bolts 15 are threaded through the screw holes 13 and screwed into the female threaded portion 8. The first stage is formed while fastening and fixing the two together.
A fitting that has already been fixed to the first stage by placing the second stage residual mold frame 1 so that the center goes to the joint between the first stage residual mold frames 1. 14 is screwed into the female threaded portion 8 of the remaining porous frame 1 for the mold placed on the second stage, and the second porous residual frame 1 for the second stage is connected and fixed to the first stage. Go. At the same time, the connecting metal fitting 14 is applied to the contact portion of the second-stage mold residual porous frame 1, 1 and the central part of the first-stage residual mold frame 1, and both residual porous frames are bolted 15 together. And the connecting metal fitting 14 to fix the connection.
A bolt 15 is passed through the screw through hole 13 to fix the connection. The above operation is repeated, and the anchor 17 and the separator 18 made of a reinforcing bar or the like are appropriately welded to the foundation 17 so that the posture and position of the remaining mold frame 1 are fixedly supported and hidden. The remaining mold part 19 is formed.
It is also possible to connect and fix the screw through holes 9 and 9 with bolts and nuts without using the connection fitting 14 or reducing the use. As a result, it is possible to reduce or eliminate the use of connecting metal fittings, or to reduce the cost.
The connecting metal fitting may be L-shaped, U-shaped or T-shaped depending on the place of use.
It is good in terms of strength and efficiency to assemble the remaining perforated frame 1 for the formwork in which about 3 to 5 sheets in length and 1 to 2 sheets in width are connected in advance.
The direction of the inclined hole 6 is set to be an upward direction, a downward direction, a lateral direction, and a direction in which concrete protrusions are formed depending on the flow viscosity of the concrete to be placed.
[0012]
When constructing the formwork, the remaining perforated formwork frame 1 is as light as 12 kilograms, even if one piece is heavy, so even one worker can easily assemble it into a portable formwork without having to use heavy machinery. Since it is strong, it can be easily connected and transported in advance, so it is easy to hang it with heavy equipment or carry it with several people and assemble a lifting formwork. Efficiency can be greatly increased.
In addition, more efficient construction will be realized in which a plurality of sheets are connected in a factory and transported to the site. Further, it is possible to easily perform more efficient operations such as connecting a flat form plate or a curved form plate in a factory to form a support column form to form a polygonal support body or a cylindrical body and carrying it to the work site.
In addition, the connection of multiple sheets in advance and the formation of the column form in the factory or field can be done easily and cheaply by welding instead of bolts, thus realizing more efficient construction and lower cost. .
[0013]
6 to 8, an example of a method for constructing the concrete frame 21 using the residual porous frame 1 for formwork will be described.
(1) Foundation forming process for forming the foundation 10 (FIG. 6),
(2) Hidden residual mold part forming step of forming the residual residual mold part 22 by connecting the residual porous frame 1 for molds to a site buried in the ground and supporting the posture with the separator 18 inside the assembly ( (Fig. 6)
(3) An underground concrete placing step for placing concrete 23 on the hidden residual formwork portion 22 (FIG. 6),
(4) In the state where the underground concrete frame 24 placed in the underground concrete placing process is hardened, the part exposed to the front surface is connected to the square form residual concrete decorative frame 25 and assembled with the separator 18 inside the assembly. And a non-exposed portion such as a surface concealed on the ground and a concrete joint surface is assembled with the residual porous frame 1 for the formwork, and the exposed residual mold portion 26 formed by supporting the posture with the separator 18 on the inner side is hidden and the residual formwork is formed. An exposed residual mold part forming step to be formed on the part 22 (FIG. 7);
(5) The concrete concrete body 21 is completed together with the ground concrete body 27 (FIG. 8) by the ground part concrete placing step (FIG. 7) for placing concrete in the exposed residual mold part 26.
The hidden residual mold part 22 and the exposed residual mold part 26 perform mold formation and concrete placement in several steps depending on the height and width of the concrete frame.
In addition, the placing of concrete is optional, for example, performed for each stage of the mold part or in multiple stages.
The foundation is preferably formed by forming a foundation mold with the remaining porous frame 1 for molds.
In addition, in the case of a long concrete frame, jointing is performed in several times, but since the jointing part that is the side surface has an infinite number of concave and convex shapes, the bending shear strength of the jointing part is integrally cast. Realizes the same level of mechanical properties, resulting in a high-quality cast-in concrete frame.
The hidden residual mold part 22 forms the back part of the exposed residual mold part 26 together with the underground part, and such a configuration also falls within the technical scope of the present invention.
[0014]
Different Embodiments of the Invention
Next, different embodiments of the present invention shown in FIGS. 9 to 11 will be described.
In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.
[0015]
The second embodiment of the present invention shown in FIG. 9 and FIG. 10 is mainly different from the first embodiment of the present invention in that the configuration of the open frame 30 constituting the mold residual porous frame 29 Is provided with three body edge L steels 31, 32, 33 arranged at intervals in the front part, and a column L steel 34 formed by connecting and fixing both ends of the body edge L steels 31, 32, 33. And a perforated plate 37 made of a synthetic resin or metal. The perforated plate 37 is appropriately provided with a threaded hole 9 in each L steel except the middle barrel edge L steel 32, and a locking hole 36 is provided at an appropriate portion. A perforated plate mounting hole 39 for locking and fixing with the mounting bracket 38 is provided in the entire body edge L steel.
As shown in FIG. 10, when assembling the formwork 40, the separators 18 are anchored on the foundation side by standing up on the basis of the connecting bodies 50a to 50n in which several opening frame bodies 30 are connected to each other. (Not shown) and a coupling body are welded, the standing state is fixed, and the connection assembly porous plate 37 is attached.
In addition, the threaded L steel 31, 32, 33 and the support L steel 34, 35 are separated and a screw through hole is provided to fix each of them to a predetermined part, and the bolts and nuts are connected at the site or the like. The opening frame 30 may be formed and used. This is advantageous in that it can be provided at a lower price since assembly or welding of the opening frame is not required, and the transportation cost can be reduced because truck transportation can be carried out in a larger amount.
Also, without using the expensive L steel, which is a specially bent sheet steel material so that the inner corners are not rounded, the general-purpose inexpensive L steel is cut and welded or bolted without any processing at the end. Since it can form, the effect that the formation cost can be reduced can be acquired.
Further, in this case, the body edge on the front side can be used repeatedly after removing the nut after the concrete is hardened and removing it.
The perforated plate 37 is preferably attached to the opening frame 30 by welding before or during the formation of the mold. In this case, the cost can be reduced because the locking hole 36, the perforated plate mounting hole 39 and the mounting bracket 38 are not required.
[0016]
The third embodiment of the present invention shown in FIG. 11 is mainly different from the first embodiment of the present invention in that the connecting metal fitting 42 is a T-shaped metal fitting main body 43 and the tip of the metal fitting main body 43. The front end of the vertical projection is provided with locking portions 45, 45, 45 having U-shaped tips 44, 44, 44.
Avoid the frame of the opening frame 2 and tilt it against the opening frame 2, turn it to the left in a pressed state, hit it with a hammer, and insert the fitting end portions 44, 44, 44 into the corresponding screw holes 9, 9. , 9 to connect the open frame bodies 2, 2 to each other.
There is no need to tighten the screw and work efficiency can be improved.
[0017]
In the fourth embodiment of the present invention shown in FIG. 12, the main difference from the first embodiment of the present invention is that the formation of the open frame body and the remaining porous frames 52a to 52n for the formwork is performed on site. It is formed by assembling the steel frame and retrofitting the perforated plate 30.
The part shown in FIG. 12 is a joining part in the side wall part of the mold 53.
The aggregate made of L steel forming the mold is formed by the support posts 54a to 54n and the trunk edges of the trunk edges 55a to 55n.
A foundation 57 is erected on which the anchor bolt 11 is raised at a formwork forming portion and a cross-shaped anchor 56 is appropriately erected on the inside.
The trunk edge 55a is fixed to the foundation 57 with the back outward, the column 55b and the column 55i are connected by the bolt 15 and the nut, and the trunk edges 55a to 55h are connected while appropriately connecting the columns.
During assembly, the posture is fixed by connecting the body edge and the anchor 56 with the separator 18 appropriately. In connection with the separator 18, a tip of the 18 material is flown in a predetermined manner to form a hook, and one is passed through a threaded hole on the trunk edge and the other is fastened and fixed to the anchor 56 with a number wire using a cross shape. By doing so, it is possible to work even in the rain without requiring a welding machine.
The perforated plate 30 is fixed to the trunk edge with an iron plate drill screw, welding, a mounting bracket or the like.
When the cast concrete frame is hardened by the combination of two barrel edges and ten columns, the columns can be used repeatedly by removing the bolts and removing them. For example, it is possible to use the column of the part where the concrete frame has been formed for the next stage formwork and to leave it in the ground at the final stage.
[0018]
The fifth embodiment of the present invention shown in FIG. 13 is mainly different from the first embodiment of the present invention in that screw holes 13 are appropriately provided in the opening frame body 1 and bolts 15 are connected to each other. And a nut 12, and a frame connecting portion 59 in which a male screw 58 into which the nut 12 is screwed is welded to a separator 18 such as a reinforcing bar that supports the posture of the opening frame 1. The connection means 61 of the substantially L-shaped rod shape which consists of the separator welding part 60 is provided.
By adopting such a configuration, the direction of the separator welding part 60 can be rotated vertically or horizontally to match the direction of the separator, thereby making the welded part 62 in a wide range, It is possible to realize sufficient welding strength both in terms of appearance and in practice.
Further, the separator welding portion may be rotated in the horizontal direction or the vertical direction. For example, the separator welding portion may be pivotally supported by a frame connecting portion by a shaft such as a crimping pin. It is preferable that the rotation is operated by tightening with friction. By setting it as such a structure, the parallel contact | abutting of the separator and separator weld part from various directions is realizable.
[0019]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
[0020]
(1) At the time of construction of the mold, even if the residual porous frame for the mold is L steel as the opening frame, the weight of one piece is 1200 mm x 600 mm x 40 mm and the thickness of the porous plate is 0.8 mm Because it is lightweight and strong with 12 kilograms, it can be easily assembled into a portable formwork without having a heavy machine etc. by one worker, and a plurality of sheets are connected in advance, You can hang it with heavy machinery or carry it by several people and assemble the formwork. Therefore, the construction efficiency can be greatly improved, and since it is lightweight, the truck can be transported to the site in large quantities at one time, and the construction cost can be greatly reduced. Toi Effect can be obtained.
In addition, it is possible to obtain an effect that it is easy to improve efficiency such as transporting to the site with multiple sheets connected in the factory, forming a column form to form a column concrete frame in the factory and carrying it to the site. it can.
In addition, it is possible to easily connect a plurality of metal remaining perforated frames in the factory or on-site in advance or to form a column mold by welding instead of using bolts. Bolt holes and nuts for connecting to the opening frame It is possible to obtain an effect that it is possible to flexibly cope with various forms of formwork while realizing lower cost and efficient construction.
(2) Since the concave and convex surfaces are formed by a large number of small concrete projections by the inclined holes and jaw holes, the jointed parts have innumerable irregularities, and the bending proof strength of the jointed parts is about the same as that of the single piece In addition to realizing the mechanical properties, it is possible to eliminate special processing for forming irregularities, to perform construction that can be done by non-skilled workers because it is a remaining frame, and to realize unnecessary work removal and safe workability. The effect of realizing efficient and low-cost construction can be obtained.
(3) When the opening frame body is made of metal, there is no dust when it is cut, and 100% of the waste can be recycled, so that there is no processing burden.
[0021]
(4) Separator welding for welding a frame connecting portion formed by threading a male screw to which the nut is connected to each other by a nut and a separator such as a reinforcing bar that supports the posture of the opening frame. If the separator welded part is firmly fixed, welding work with the separator is very easy, and when it is attached to the side part When the vertical angle of the separator weld is mounted on the side, the horizontal angle of the separator weld can be adjusted freely, so the welded portion between the separator and the separator weld can be made larger, and it is actually visible In addition, the effect of realizing reliable welding can be obtained.
Further, the connecting means only needs to use the connecting holes of the connecting bolts, and the formation of the connecting holes can be reduced, and the use of the bolts is reduced by the use of the connecting means, which is economical.
[Brief description of the drawings]
FIG. 1 is a rear view of a first embodiment of the present invention.
2 is a partially enlarged view of the porous plate of FIG.
FIG. 3 is a functional conceptual diagram of the perforated plate according to the first embodiment of the present invention.
FIG. 4 is an assembly drawing of a mold according to the first embodiment of the present invention.
FIG. 5 is a connection state diagram of the connection fitting according to the first embodiment of the present invention.
FIG. 6 is a hidden residual mold part forming view of the first embodiment of the present invention.
FIG. 7 is an exposed remaining mold part forming view of the first embodiment of the present invention.
FIG. 8 is a completion diagram of the concrete frame according to the first embodiment of the present invention.
FIG. 9 is an exploded perspective view of a second embodiment of the present invention.
FIG. 10 is an assembly construction drawing of the second embodiment of the present invention.
FIG. 11 is a mounting diagram of a coupling metal fitting according to a third embodiment of the present invention.
FIG. 12 is a form assembly construction diagram of the fourth embodiment of the present invention.
FIG. 13 is an assembled perspective view of a mold according to a fifth embodiment of the present invention.
[Explanation of symbols]
1: residual porous frame for mold, 2: open frame body,
3: Concrete fluid, 4: Inclined wall,
6: substantially inclined hole, 7: perforated plate,
8: Female thread part, 9: Screw through hole,
10: Foundation, 11: Anchor bolt,
12: Nut, 13: Screw hole,
14: Connecting bracket, 15: Bolt,
16: Washer, 17: Anchor,
18: Separator, 19: Hidden residual mold part,
20: concrete small protrusion, 21: concrete frame,
22: Hidden residual mold part 23: Concrete
24: Underground concrete frame,
25: Residual concrete decorative frame for formwork,
26: Exposed residual mold part, 27: Ground concrete frame,
29: Remaining porous frame for mold, 30: Opening frame,
31: Trunk edge L steel, 32: Trunk edge L steel,
33: waist L steel, 34: prop L steel,
35: Prop L steel, 36: Locking hole,
37: Perforated plate, 38: Mounting bracket,
39: Perforated plate mounting hole, 40: Formwork,
42: Connecting metal fitting, 43: Metal fitting body,
44: fitting part 45: locking part,
50a to 50c: Linked bodies 52a to 52c: Residual porous frame for mold 53: Molds 54a to 54j: Struts 55a to 55h: Trunk edge 56: Anchor 58: Male screw 59: Frame link 60: Separator weld 61 : Connection means 62: welded part.

Claims (4)

Residual perforated frame for forming concrete casting molds, toughness that does not easily break or deform when moved in a state where multiple pieces are connected by bolts, welding or connecting brackets An opening frame made of a metal member, and an inclined wall formed by extending the metal plate by arranging a large number of cuts in the metal plate that are stretched or stretched to cover the opening. Such as a hole formed in a metal plate or a hole formed by a jaw-shaped part formed by extruding a notched portion formed in a metal plate, and the poured concrete fluid hardly leaks outside and is filled with concrete. A perforated plate in which a large number of holes for forming small protrusions are arranged , a frame body connecting portion formed by threading a male screw into which the nut is coupled to each other by means of a nut, and the opening frame body. Support posture Mold for residual porous frame, characterized in that it consists of a connecting means a separator, such as rebar as possible or L form of L form comprising a separator welds welding that.   The metal aggregate forming the opening frame is in a loose state, and the metal aggregate is assembled to the opening frame at the time of forming the mold, and a porous plate is attached to the assembled opening frame. The residual porous frame for a mold according to claim 1, wherein:   An opening frame body, a hole formed between the inclined walls formed by stretching the metal plate by arranging a large number of cuts in the metal plate, which is stretched or stretched over the opening frame body so as to cover the opening, Holes that are not easily leaked to the outside, such as holes formed by jaw-shaped parts formed by extruding cut portions formed on metal plates, and that are filled with concrete to form concrete protrusions. A residual perforated mold frame comprising a plurality of perforated plates, a residual concrete decorative frame for the mold, and a portion that is hidden by contact with the ground or a portion to be joined, the residual perforated frame for the mold Connected and assembled hidden residual mold part, exposed part from the ground to form a landscape, residual mold form consisting of the residual residual mold part connected and assembled with the residual concrete decorative frame for the mold, and this Concrete skeleton, characterized by comprising a filled to exist formwork concrete.   An opening frame body, a hole formed between the inclined walls formed by stretching the metal plate by arranging a large number of cuts in the metal plate, which is stretched or stretched over the opening frame body so as to cover the opening, Holes that are not easily leaked to the outside, such as holes formed by jaw-shaped parts formed by extruding cut portions formed on metal plates, and that are filled with concrete to form concrete protrusions. Hidden remaining mold frame is formed by connecting the remaining perforated mold frame consisting of a plurality of perforated plates to the site embedded in the ground and supporting the posture with a separator such as a reinforcing bar inside the assembly. Formwork part forming process, underground concrete placing process in which concrete is placed in the hidden residual formwork part, and the underground concrete frame placed in this underground concrete placing process is cured Connect the remaining concrete decorative frame for the formwork to the exposed part on the surface, and support the posture with a separator such as a reinforcing bar inside the assembly, and the unexposed part such as the surface hidden in the ground and the concrete joint surface remain for the formwork An exposed residual mold part forming step for forming an exposed residual mold part on the inner side of the hidden residual mold part by supporting a posture with a separator such as a reinforcing bar on the inner side of the assembly with a porous frame, and a concrete in the exposed residual mold part A method for constructing a concrete frame, characterized by comprising the above-mentioned concrete placing step for placing a concrete.

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