JP4705393B2 - Formwork construction method and concrete structure construction method using the same - Google Patents

Description

  The present invention relates to a mold forming method and a concrete structure construction method using the same, and more particularly to a mold forming method capable of being constructed at low cost and a concrete structure construction method using the same.

  In recent years, many external heat insulating structures have been provided as new heat insulating structures. Conventional heat insulation structures have been constructed by assembling a normal concrete casting form and then attaching a heat insulation material to the inner surface of the outer form material.

As described above, after assembling the mold once, the work of attaching the heat insulating material corresponding to the outer wall to the inner surface of the mold is inefficient, resulting in an increase in construction cost and a problem in the accuracy of attaching the heat insulating material. was there.
Therefore, when adopting an outer heat insulating structure in a concrete structure, a mold made of a heat insulating material is used as a mold corresponding to the outer wall, and the work for arranging the heat insulating material in the concrete casting mold and the heat insulating structure is performed. In addition to the heat-insulating formwork panel that can be performed at once, the outer formwork that forms an external heat-insulating structure by simply fitting the heat-insulating material into the part of the formwork corresponding to the outer wall, and the heat-insulating material itself as the formwork material The technique used is proposed.
JP 2004-003333 A JP 2001-214559 A JP 2001-032421 A

  However, in order to form a wide variety of molds by using a heat insulating material, the mold must be formed each time, resulting in a problem that the manufacturing cost increases. In addition, in the method of fitting and fixing the heat insulating material on the inner surface of the outer mold, in addition to the problem that processing of the outer mold becomes complicated, the connection between the heat insulating materials is bonded with an adhesive. In such a case, there is a fatal problem that the bonded portion is damaged due to thermal expansion or the like.

  It is an object of the present invention to provide a formwork capable of constructing a heat insulating structure with a low cost and a reliable heat insulating structure from a mold material made of a heat insulating material, and a concrete structure construction method using the formwork. It is.

The present invention relates to a mold forming method for forming a heat insulating form structure that forms a heat insulating material barrier plate formed by connecting a plurality of heat insulating materials among the barrier plates arranged to face each other at a required interval. in a step of attaching the inner spliced plate to pass over the entire height of the adjacent Gutotomoni straddle the abutting portion on the inner surface side between the insulation material, the insulation, contact the heat insulating material A contact plate is applied to the outer surface side of the portion, and the inner contact plate, the heat insulating material, and the contact plate are connected to each other by using a fixing screw that penetrates the corresponding contact plate and the heat insulating material. Fixing at a plurality of positions in the vertical direction and forming a heat insulating material barrier plate , and using a separator, maintaining a predetermined distance between the opposing barrier plates, and the heat insulating material on the inner side The process of attaching the attachment plate is performed by using a butyl rubber double-sided tape. Side spliced plate after fixed to the heat insulating material, a mold forming method, wherein the a step of attaching the heat insulating material using the fixed screw from the contact plate side.

Further, an outer contact plate is applied to the outside of the contact plate across the contact portion between adjacent heat insulating materials, and the heat insulating material dam plate is sandwiched together with the inner contact plate by a locking material. Including a process.
Thereby, even if it is a heat insulating dam plate, it becomes possible to provide a strong concrete formwork. Moreover, the minimum board thickness of the heat insulating dam plate which can be used as a formwork material can be set thinner.

Further, the inner contact plate is pressed into recesses formed on both side surfaces of the contact portions of adjacent heat insulating materials.
As a result, it is possible to eliminate the increase in the concrete thickness corresponding to the inner attachment plate. Further, since the surface of the dam plate in the formwork space can be made flat, the concrete placing operation can be easily and accurately performed.

In addition, the separator includes a cylindrical body disposed between opposing weir plates, and an inner space and at least one end side of the cylindrical body are fastened through one of the weir plates and projecting outward. A rod is provided, and on the outer surface of the dam plate, the dam plates are clamped between the two dam plates via the tubular body by a fastener attached to the fastening rod, so that the opposing dam plates are held at a predetermined interval. It is characterized by that.
Thereby, since it becomes possible to use repeatedly some components (fastening rod) in a separator, construction cost can be reduced. In addition, since the heat conductor is not left in the concrete wall of the concrete structure in a state where it penetrates, the heat insulation effect can be greatly improved. Also, condensation can be prevented.

Further, the present invention includes a step of holding a skirting board for attaching the outer wall material on the outer surface of the heat insulating material dam plate by an anchor penetrating the skirting board and the heat insulating material dam plate.
Thereby, an outer wall material can be attached to the surface side of a heat insulating dam plate, and a highly heat insulating concrete structure can be provided.

In another aspect of the invention, the concrete is placed in the mold formed by the mold forming method described in any one of the above, and after curing, the required part of the mold is removed, thereby insulating the barrier plate Is a method for constructing a concrete structure, characterized in that is left on the wall of the concrete structure.
Further, the concrete structure is a concrete wall of a basement, and the heat insulating dam plate is left on the outer wall side of the concrete wall.

In addition, after placing concrete in a mold formed by the mold forming method described in any one of the above, and removing a necessary part of the mold after curing, outside the connecting portion of the heat insulating material weir plate It includes a step of applying mortar to the heat insulating material barrier plate and the mesh member after attaching the mesh member on the surface side so as to straddle the connecting portion.
As a result, when mortar is applied to the outer surface of the heat insulating material, it is possible to prevent the mortar from peeling off at the connecting portion of the heat insulating material due to the difference in thermal expansion coefficient between the mortar and the heat insulating material. Therefore, it is easy to maintain and manage the concrete structure.

  According to the formwork and the concrete structure construction method using the same according to the present invention, since a general heat insulating material can be used as a dam plate of the formwork, a concrete structure having a heat insulation structure can be obtained at low cost. Can be constructed. In addition, since less material is used, the generation of waste materials is extremely reduced, and the time and effort required for clean-up can be reduced, and this contributes greatly to environmental protection.

(First embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a formwork and a concrete structure construction method using the same according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a part of a mold in the first embodiment. FIG. 2 is an enlarged plan view of a connection portion of a heat insulating dam plate in the mold shown in FIG. 1 (part A enlarged view in FIG. 1).

  The mold 10 in the present embodiment is a so-called outer heat insulating structure 10 formed using a heat insulating material barrier plate 12 on the outer surface side and a normal barrier plate 14 made of plywood on the inner surface side. is there. For the heat insulating material barrier plate 12 in the present embodiment, a heat insulating board itself manufactured by a general manufacturing method such as an extrusion method is used. Therefore, when building the mold 10 in an arbitrary shape, the mold 10 must be assembled by connecting a plurality of heat insulating barrier plates 12. Since the mechanical strength such as the bending strength of the heat insulating dam plate 12 is smaller than that of the normal dam plate 14, the connection portion between the heat insulating dam plates 12 needs to have a sturdy structure.

  A connection structure between the heat insulating dam plates 12 will be described. Here, the structure of a portion where the side end surfaces of the heat insulating material barrier plate 12A and the heat insulating material barrier plate 12B are brought into contact with each other will be described. As shown in FIG. 2, recesses 16A and 16B are formed on the inner surface of the abutting portions of the heat insulating dam plates 12A and 12B. The recesses 16A and 16B are formed over the entire length in the height direction of the heat insulating dam plates 12A and 12B. Further, the depths of the recesses (stepped portions) 16A and 16B are formed substantially equal to the thickness of the inner attachment plate 20.

Inside the recesses 16A and 16B formed in this way, an inner contact plate 20 is disposed. As shown in FIG. 2, the inner joint plate 20 is disposed so as to cover the insulating material barrier plates 12 </ b> A and 12 </ b> B with substantially the same width, with the connection portion of the insulating material barrier plates 12 </ b> A and 12 </ b> B as the center. . The height position of the inner surface of the inner contact plate 20 is flush with the height position of the inner surfaces of the heat insulating dam plates 12A and 12B.
As the material of the inner joining plate 20, a synthetic resin having good adhesion to concrete or a plywood subjected to an antiseptic treatment can be used, but a synthetic resin plate having a roughened surface is particularly preferably used. An adhesive portion 22 is formed on the inner contact plate 20 on a surface facing the bottom surfaces of the recesses 16A and 16B. As the bonding part 22, a butyl rubber-based bonding means such as a butyl rubber-based double-sided tape is preferably used. Butyl rubber has good adhesion to concrete. In FIG. 2, the adhesive portion 22 is expressed with a certain thickness, but in reality, the thickness is such that the thickness can be ignored.

  A contact plate 24 is disposed on the outer surface of the abutting portion of the heat insulating material weir plates 12A and 12B so as to face the inner contact plate 20. The contact plate 24 is provided with a screw hole (not shown). The material of the contact plate 24 is not particularly limited. In the present embodiment, a contact plate 24 formed of a synthetic resin plate is used. The contact plate 24 is disposed with a required interval in the height direction of the heat insulating material barrier plates 12A and 12B, and is attached by a fixing screw 26 that penetrates the heat insulating material barrier plate 12 and reaches the inner attachment plate 20. ing. The distal end portion of the fixing screw 26 does not penetrate the inner attachment plate 20 and remains within the thickness of the inner attachment plate 20. The heat insulating dam plate 12B is sandwiched between the inner contact plate 20 and the contact plate 24, and the end face position of the heat insulating dam plate 12B is held at the position of the inner contact plate 20.

  As shown in FIG. 2, the contact plate 24 is attached by being deformed by pressing the heat insulating dam plates 12A and 12B and biting into the heat insulating dam plates 12A and 12B. As described above, the contact plate 24 is disposed in a state where the outer surface position of the contact plate 24 is substantially flush with the outer surface position in the undeformed portions of the heat insulating material weir plates 12A and 12B.

An outer contact plate 28 is attached to the outer surface of the contact plate 24. The outer contact plate 28 is a member for reinforcing the connecting portions of the heat insulating dam plates 12A and 12B. The material of the outer contact plate 28 is not particularly limited. Similar to the inner attachment plate 20, the outer attachment plate 28 is disposed over the entire length in the height direction of the heat insulating weir plates 12A and 12B. A screw hole (not shown) is also formed in the outer contact plate 28. The screw hole is formed at a position overlapping with a part of the screw hole formed in the contact plate 24 (the fixing screw 26 is not provided). The outer contact plate 28 is fixed to the heat insulating dam plates 12 </ b> A and 12 </ b> B by a mounting screw 30 whose tip is within the thickness of the inner contact plate 20.
In this way, the connecting portion of the heat insulating dam plates 12A and 12B is covered with the required width over the entire length in the height direction of the heat insulating dam plate 12 by the inner connecting plate 20 and the outer connecting plate 28. Is formed.

  In this way, connection is made by abutting the heat insulating dam plates 12A and 12B. In addition, also in the corner part of the formwork 10, the heat insulating dam plates 12A and 12C made of a general heat insulating material can be connected in the orthogonal direction by the same structure as the connection structure by the butt as shown in FIG. The joining of the heat insulating dam plates 12A and 12C in the corner portion is a form in which the tip of the other heat insulating dam plate 12B is abutted against the inner surface of one heat insulating dam plate 12A.

In addition, as shown in FIG. 1, the shape of the inner joint plate 20A and the outer joint plate 28A at the corner portion is substantially L-shaped. For this reason, the inner attachment plate 20A and the outer attachment plate 28A in the corner portion are formed of synthetic resin.
Further, the weir plate 14 inside the mold 10 is made of a plywood called a so-called control panel, and since a known connection structure can be applied, detailed description thereof is omitted here. In this way, the outer heat insulating dam plate 12 and the inner dam plate 14 are disposed at the required positions.

FIG. 3 is a cross-sectional view of the separator portion in FIG.
In general, a separator 40 is disposed in a concrete formwork in order to maintain a separation distance between an inner dam plate (dam plate 14) and an outer dam plate (heat insulating material dam plate 12). The separator 40 is also disposed in the concrete mold 10 in the present embodiment. Separator 40 in the present embodiment is disposed between tubular body 42 disposed between the inner surfaces of heat insulating material dam plate 12 and dam plate 14, and between tubular body 42 and heat insulating material dam plate 12. Fastening for fastening the pad member 43, the insulating rod 12 and the inner space of the cylindrical body 42 and the dam plate 14, and the fastening rod 44, the insulating dam plate 12 and the dam plate 14 to each other. The tool 46 and the water stop material 48 provided in the outer periphery of the cylindrical body 42 are provided.

  The cylindrical body 42 is formed in a cylindrical shape by a resin such as vinyl chloride or a metal material such as an aluminum material having a low thermal conductivity. In the vicinity of both end portions of the cylindrical body 42, the member thickness (thickness) of the cylindrical body 42 is formed in a tapered shape that gradually becomes thinner (thinner) as it approaches the end portion. A pad member 43 is disposed at the end of the cylindrical body 42 on the side in contact with the heat insulating material barrier plate 12. As the pad member 43, a resin plate or a metal plate is used. The pad member 43 increases the contact area between the heat insulating material dam plate 12 and the cylindrical body 42 and prevents the heat insulating material dam plate 12 from being deformed when the separator 40 is tightened. The size of the pad member 43 is appropriately adjusted according to the size of the tightening torque of the separator 40.

  As the fastening rod 44, a bolt is preferably used. Both ends of the fastening rod 44 are provided so as to be fastened by fasteners 46 disposed on the outer surface side of the respective dam plates 12 and 14 at the intersections with the heat insulating dam plate 12 and the dam plate 14. Yes. The tightening rod 44 is provided with a washer member 41 for holding the mounting state of the cylindrical body 42 mounted on the tightening rod 44. A plurality of washers 41 are attached to the fastening rod 44. As shown in FIG. 3, one of the washer members 41 is attached to the fastening rod 44 so as to come into contact with the position of the inner surface of one of the weir plates 12, 14. Since a plurality of washers 41 are attached, the axial line of the cylindrical body 42 and the axial line of the fastening rod 44 can be matched in a state where the cylindrical body 42 is attached to the fastening rod 44. In order to improve workability when attaching the cylindrical body 42 to the fastening rod 44 and to stably hold and improve the attached cylindrical body 42, the fastening rod 44 is provided with at least three washer members 41. It is preferable to attach.

The fastener 46 in the present embodiment includes a washer 46A that also serves as a receiving pad and a nut 46B. Since the washer 46A is in direct contact with the heat insulating material barrier plate 12, it is preferably large so that the heat insulating material barrier plate 12 is not deformed when the separator 40 is tightened with a predetermined tightening torque. More preferably, the contact area is appropriately adjusted according to the magnitude of the torque.
The water blocking material 48 is disposed over the entire width of the outer peripheral surface of the cylindrical body 42 or a part of the outer peripheral surface over a required width. The water stop material 48 is fixed to the outer peripheral surface of the cylindrical body 42 with an adhesive or the like. The water stop material 48 is formed of the same material as the pad member 43.

  The mold 10 thus formed is supported by a thick end material frame 60 (hereinafter sometimes referred to as a support work 60) made up of a vertical end thick member 50 and a horizontal end thick member 55. Both the vertical end thick member 50 and the horizontal end thick member 55 are generally formed of channel steel. Since the heat insulating dam plate 12 used in the present embodiment is formed of a general-purpose heat insulating material, the bending strength is smaller than that of a general dam plate 14. Since the heat insulating dam plate 12 having such a low bending strength is used, the vertical end thick material 50 disposed at least in direct contact with the heat insulating dam plate 12 is disposed on the general dam plate 14. It is necessary to increase the contact area between the insulating material barrier plate 12 and the vertical end thick member 50 by arranging more than the vertical end thick member 50, but the construction cost increases, so the contact area is large. A vertical end thick material 50 is used.

Therefore, in the present embodiment, as shown in FIG. 4, a groove shape in which a contact member 52 for increasing a contact area with the heat insulating material dam plate 12 is attached to a contact portion with the heat insulating material dam plate 12. Steel 51 is used as the vertical end thick member 50. FIG. 4 is a cross-sectional view in a direction orthogonal to the member extending direction of the thick vertical end member.
The contact member 52 can be formed of a simple plate material such as a metal, a wooden board, and a resin. As the contact member 52 and the groove steel 51, a structure in which the contact member 52 and the groove steel 51 are integrally formed by welding or the like can be used in addition to a form assembled when the vertical end thick member 50 is installed. The horizontal end thick material 55 can also be a horizontal end thick material 55 having the same structure as the vertical end thick material 50.
In this way, it is possible to form a support 60 that is convenient for supporting the mold 10 in which at least one dam plate is formed of a heat insulating material.

Next, the construction method of the concrete structure using the formwork in this Embodiment is demonstrated. 5 to 7 are explanatory plan views showing the state of assembly of the formwork.
First, the dam plate 14 made of plywood is assembled into a required shape, and one end side of the fastening rod 44 is fixed to the outer surface of the dam plate 14 using a nut 46B. Since the washer member 41 is disposed on the fastening rod 44 at a position in contact with the inner surface of the barrier plate 14, the barrier plate 14 is sandwiched between the washer member 41 and the nut 46. Thus, the fastening rod 44 is attached to the barrier plate 14 without using a washer.

  Next, the cylindrical body 42 is attached to the fastening rod 44. In the present embodiment, the end of the cylindrical body 42 is formed in a taper shape, and the three washer members 41 are attached to the fastening rod 44. Therefore, it is very easy to attach the cylindrical body 42. Can be done. The cylindrical body 42 is mounted in a state where the axis of the cylindrical body 42 is aligned with the axis of the fastening rod 44. The cylindrical body 42 thus mounted does not deviate from the axis of the cylindrical body 42 and the axis of the fastening rod 44 even if some impact is applied to the cylindrical body 42 or the fastening rod 44.

  After attaching the cylindrical body 42 to the fastening rod 44, the heat insulating material dam plate 12 corresponding to the outer dam plate of the mold 10 is disposed. The fastening rod 44 is passed through the heat insulating material dam plate 12, and the heat insulating material dam plate 12 is tightened on the outer surface of the heat insulating material dam plate 12 using the fastening rod 44, the washer 46 </ b> A, and the nut 46 </ b> B. In addition, since a general-purpose heat insulating material is used for the heat insulating material barrier plate 12, it is necessary to connect the heat insulating material barrier plates 12 when forming a desired shape in the mold 10. A specific example of the connection method is shown below.

  First, the inner attachment plate 20 is attached to the inner surface of the heat insulating dam plate 12A on the connected side. The inner contact plate 20 is attached over the entire length in the height direction of the heat insulating weir plate 12. Since the adhesive portion 22 made of an adhesive tape or the like is formed on the inner contact plate 20, a part of the adhesive tape is removed and the adhesive surface to which the heat insulating material dam plate 12A on the connected side is bonded is covered. It is preferable that It should be noted that the inner surface height position of the inner contact plate 20 is at the same height position as the inner surface height position of the heat insulating dam plate 12 at the inner surface portion in the contact portion of the heat insulating dam plate 12A. Since the step portion 16 </ b> A is formed, the inner contact plate 20 is disposed on the heat insulating dam plate 12 </ b> A so as to be flush with the inner surface of the heat insulating dam plate 12.

  After the inner contact plate 20 is attached to the heat insulating material barrier plate 12A on the connected side, the contact plate 24 is attached to the outer surface at a position facing the inner contact plate 20 as shown in FIG. The contact plate 24 is fixed from the outer surface of the contact plate 24 by a fixing screw 26. It is preferable that the fixing screw 26 is attached so as to penetrate the contact plate and the heat insulating material dam plate 12A on the connected side so that the tip of the fixing screw 26 stays within the thickness of the inner attachment plate 20. When the contact plate 24 is attached to the heat insulating dam plate 12A in this manner, the contact plate 24 is attached in a state of slightly biting into the heat insulating dam plate 12A. In addition, when the biting into the heat insulating dam plate 12 is not preferable, the size of the contact plate 24 may be adjusted as appropriate.

  Next, the heat insulating material dam plate 12B on the connection side is connected to the heat insulating material dam plate 12A on the connected side. After all the adhesive tape bonding portions 22 of the inner contact plate 20 fixed to the heat insulating material dam plate 12A on the connected side are exposed, the end surfaces of the heat insulating material dam plates 12A and 12B are brought into contact with each other. Connect. In addition, since the adhesion part 22 consists of adhesive tapes, you may make it peel the release paper of an adhesive tape, after connecting the heat insulating dam boards 12A and 12B. Thereby, it can attach so that the inner side attachment board 20 may straddle both sides of the heat insulating dam boards 12A and 12B in a connection part. Of course, since the step portion 16B is also formed in the heat insulating material dam plate 12B on the connection side, the inner surfaces of the heat insulating material dam plates 12A and 12B and the inner surface of the inner attachment plate 20 are flush with each other. . The contact plate 24 is attached to the connection-side heat insulating material dam plate 12B in the same manner as the connection-side heat insulating material dam plate 12A.

As described above, the heat insulating dam plates 12A and 12B are connected. However, at the present time, on the outer surfaces of the heat insulating dam plates 12A and 12B, the contact plates 24 are arranged at a predetermined interval in the height direction of the heat insulating dam plates 12A and 12B. The holding strength as a formwork for placing concrete may be insufficient.
Therefore, as shown in FIG. 7, an outer contact plate 28 is disposed on the outer surface of the heat insulating dam plates 12A and 12B, and the connected heat insulating dam plate 12A and the connected heat insulating dam plate 12B are connected to each other. Reinforce the entire length of the weir plate in the height direction. Since a through hole (not shown) is formed in the outer contact plate 28 at a position corresponding to a part of a screw hole (not shown) formed in the contact plate 24, the outer contact plate 28. After passing through the contact plate 24 and the heat insulating material weir plates 12A and 12B, the mounting screws 30 can be fixed within the plate thickness of the inner contact plate 20. In this way, the heat insulating material barrier plates 12A and 12B are securely connected. Moreover, the connection method by a butt | matching can be applied as it is also about the connection of the heat insulation dam board 12 orthogonal to each other like the heat insulation dam boards 12A and 12C.

  Next, the vertical end thick material 50 and the horizontal end thick material 55 which are the support works 60 are disposed. In this embodiment, since the heat insulating material dam plate 12 is used, the contact member 52 is attached to at least the vertical end thick material 50 disposed with respect to the heat insulating material dam plate 12, and the heat insulating material dam is provided. The one having an increased contact area with the plate 12 is disposed, and the deformation of the heat insulating material weir plate 12 after placing the concrete is minimized while reducing the amount of the vertical end thick members 50 used. Although not shown in the drawing, the contact member 52 of the vertical end thick member 50 can be used in place of the outer contact plate 28 or the contact member 52 can be disposed outside the outer contact plate 28 to reduce the cost. Reduction can be made and the concrete mold 10 can be made more robust. FIG. 8 is a plan view showing a state in which a support work is disposed on the concrete formwork.

  After the placement of the support work 60 is completed, concrete is placed on the concrete formwork 10. In placing concrete, a known method such as using a vibrator is applied, and the concrete is placed while being sufficiently compacted. After the concrete placement is completed, curing is performed to harden the concrete. After the concrete is hardened, the support 60, the fasteners 46 and the fastening rods 44, and the concrete mold 10 are disassembled. In the present embodiment, since the fastening rod 44 and the fastener 46 which are a part of the separator 40 are detachably provided, the fastening rod 44 and the fastener 46 can be reused.

FIG. 9 is a cross-sectional view of the outer wall portion of the concrete structure. FIG. 10 is a cross-sectional view of the outer wall portion of the concrete structure showing a state after the water stop treatment is performed.
The concrete structure 70 constructed as described above is in a state in which a through hole is formed by the tubular body 42 of the separator 40 remaining in the wall surface. Therefore, a water stop plug 80, a filler 82 and a decorative member 84 are disposed in the internal space of the cylindrical body 42. The water stop plug 80 is disposed by being inserted from the outer surface of the wall surface toward the internal space of the cylindrical body 42. The filler 82 is filled into the internal space of the cylindrical body 42 from the inner surface side of the wall surface. As the filler 82, a known material can be appropriately employed. In the present embodiment, urethane foam that also functions as a heat insulating material is used.

  After the plug 80 and the filler 82 are disposed in the internal space of the cylindrical body 42 of the separator 40, the decorative member 84 is disposed so as to sandwich the plug 80 and the filler 82, thereby completing the concrete structure 70. . Of course, well-known materials can be appropriately selected and disposed for the decorative member 84. Needless to say, it is preferable to use a decorative member 84 on the outer surface having heat insulating performance. In this way, a concrete structure 70 having a water-stopping property is formed.

(Second Embodiment)
In 1st Embodiment, although the form in which the heat insulating dam plate 12 was used as an outer wall material was demonstrated as it is, in this Embodiment, about the form which implements mortar coating finish on the outer surface of the heat insulating dam board 12 explain.
FIG. 11 is a plan view showing a state of thermal expansion deformation of a heat insulating material of a concrete structure. FIG. 12 is a plan view showing a connection portion of the heat insulating material of the concrete structure in the present embodiment.

In the concrete structure 70 according to the first embodiment, the outer wall portion of the concrete structure 70 is in the state shown in FIG. There is a risk of creating a gap.
In the concrete structure 70, there is one that finishes by applying mortar to the outer surface of the heat insulating dam plate 12, and in the concrete structure 70 that finishes such mortar coating, the state is as shown in FIG. If it becomes, there exists a possibility that the mortar which is a makeup | decoration material may peel off in the connection part of the heat insulating dam board 12. FIG.

  Therefore, in the present embodiment, as shown in FIG. 12, a mesh material 90 having a required width is provided at the connection portion of the heat insulating material dam plate 12 of the demolded concrete structure 70 to the height of the heat insulating material dam plate 12. It is attached in the direction. The mesh material 90 can be attached by a fastener 92 such as a screw or a stapler. As the mesh material 90, a lath metal mesh is preferably used. Such attachment of the mesh material 90 also serves to suppress the deformation of the heat insulating material barrier plate 12. Thus, even if the mortar M is applied to the connecting portion of the heat insulating material dam plate 12 via the mesh material 90, even if the heat insulating material dam plate 12 is thermally deformed as shown in FIG. It is preferable because the mortar M can be prevented from peeling off.

(Third embodiment)
In the present embodiment, an outer wall material 100 such as siding is provided on the surface of the heat insulating material barrier plate 12 with a required interval, and an air circulation layer R is formed between the heat insulating material barrier plate 12 and the outer wall material 100. The form to perform is demonstrated.
FIG. 13 is a plan view showing a part of the concrete structure in the third embodiment.

When the outer wall material 100 is disposed on the outer surface of the concrete structure 70, a framework 102 to which the outer wall material 100 is attached is necessary. Since such a frame 102 must be firmly fixed to the concrete structure 70, it must be built in advance when the mold 10 is assembled.
As shown in FIG. 13, the frame 102 is attached to the outer surface of the heat insulating material barrier plate 12 with a required interval. The frame 102 in the present embodiment uses a baseboard. After the frame 102 is disposed on the heat insulating material dam 12, the frame 102 and the heat insulating material dam 12 are penetrated using the anchor 104. At this time, the contact surface between the frame 102 and the heat insulating dam plate 12 is preferably sealed with a caulking material or the like.

Since the portion of the anchor 104 penetrating the frame 102 and the heat insulating material weir plate 12 is filled with concrete, the anchor 104 is integrated with the concrete (the side wall portion of the concrete structure 70), and the frame 102 is firmly attached to the heat insulating material weir. It can be disposed on the outer surface of the plate 12. By attaching the outer wall material 100 to the frame 102 formed in this way, the concrete structure 70 having the air circulation layer R between the heat insulating material barrier plate 12 and the outer wall material 100 can be constructed.
In addition, if the contact member 52 is formed of a wood plate or a resin plate and is screwed to the heat insulating material barrier plate 12, the outer wall material 100 is connected to the heat insulating material barrier plate via the contact member 52 without using the frame 102. Since it can be attached to the outer surface of 12, the construction efficiency can be improved, the number of members used can be reduced, and construction at a low cost is possible.

As mentioned above, although the construction method of the formwork 10 concerning this invention and the concrete structure 70 using the same was demonstrated, this invention is not limited only to the above embodiment, The summary of invention is not changed. It goes without saying that various changes in the range are included in the technical scope of the present invention.
For example, in the mold 10, the heat insulating material dam plate 12 is applied not only to the outer dam plate but also to the inner dam plate, and the mold 10 for both heat insulating structures and the concrete structure 70 using the same. It can also be.

  When the concrete structure 70 having both heat insulating structures is constructed, the barrier plate 12 remains on the inner surface and the outer surface of the concrete as a heat insulating material. Therefore, when the fastening rod 44 to which the washer member 41 is fixed is pulled out. In the pad member 43 having the shape described in the above embodiment, the washer member 41 becomes an obstacle and the fastening rod 44 cannot be pulled out. Accordingly, as shown in FIGS. 14 to 16, at least one of the pad members needs to be able to pull out the fastening rod 44 even if the pad member remains inside the heat insulating dam plate 12.

The pad member 43Z used when the concrete structure 70 having both heat insulating structures is constructed will be specifically described.
As shown in FIG. 16, the pad member 43Z has a main body plate 43Za, a through hole 43Zb formed in the central portion of the main body plate 43Za, and a required width from the outer peripheral edge position of the through hole 43Zb to the outside of the main body plate 43Za. The jaw portion 43Zc, the rising wall 43Zd erected adjacent to the jaw portion 43Zc, and the leg portion 43Ze inserted into the extraction through hole 12Z. The pad member 43Z is made of resin or metal, like the pad member 43 described in the previous embodiment.

The main body plate 43Za is formed in a circular plate, but other forms such as a rectangular plate can be used as long as the cylindrical body 42 of the separator 40 can be prevented from being inserted into the heat insulating dam plate 12. . The through hole 43Zb is formed to have a diameter that allows the washer member 41 attached to the fastening rod 44 to pass therethrough. The jaw portion 43Zc is for preventing the cylindrical body 42 from coming out of the through-hole 12z for pulling out by contacting the tip of the cylindrical body 42 of the separator 40. The inner peripheral diameter dimension of the rising wall 43Zd is formed to be the same as the outer peripheral diameter dimension of the cylindrical body 42. If the cylindrical body 42 is inserted into the space surrounded by the rising wall 43Zd, the pad member 43Z will not be displaced. Further, the leg portion 43Ze is formed so that the outer diameter is approximately the same as the diameter of the drawing through hole 12z. If the outer diameter dimension of the leg portion 43Ze is slightly larger than the diameter dimension of the extraction through hole 12z, the leg portion 43Ze is attached to the extraction through hole 12z while expanding the extraction through hole 12z. This is preferable because the pad member 43Z can be reliably performed without being displaced from the drawing through hole 12z. Of course, the inner diameter of the leg 43Ze is formed to be larger than the diameter of the through hole 12z for extraction.
By using the pad member 43 </ b> Z formed in this way, the fastening rod 44 can be reliably pulled out even when the dam plate on the drawing side of the fastening rod 44 is the heat insulating dam plate 12.

  Moreover, if the insertion hole (not shown) of the fastening rod 44 is formed in the vertical end thick member 50 and the horizontal end thick member 55, the vertical end thick member 50 can be provided in accordance with the arrangement position of the separator 40. According to this, the number of arrangement | positioning of the vertical end thick material 50 can be reduced, and the effort concerning the assembly and disassembly of the vertical end thick material 50 can be saved. Further, if such a vertical end thick material 50 is disposed at the connecting portion of the heat insulating material barrier plate 12, the contact member 52 becomes an alternative member of the outer contact plate 28, and the outer contact plate 28 is also omitted. As a result, the man-hours can be greatly reduced, and construction can be performed at low cost.

Further, the filler 82 filled in the separator 40 portion of the concrete structure 70 uses urethane foam. However, if a foam material such as expanded polystyrene is foamed in the internal space of the main body 42, the main body 42 and the plug 80 are filled. The space formed by the above can be regarded as a mold, and the filler 82 can be reliably filled, which is more preferable.
Further, in the present invention, it is of course possible to construct the mold 10 and the concrete structure 70 using the same even with a normal embedded separator.

It is a top view which shows a part of formwork in 1st Embodiment. It is an enlarged plan view of the connection part of the heat insulating material in the mold shown in FIG. It is sectional drawing in the separator part in FIG. It is sectional drawing in the direction orthogonal to the member extension direction of a vertical end thick material. It is an explanatory top view which shows the assembly condition of a formwork. It is an explanatory top view which shows the assembly condition of a formwork. It is an explanatory top view which shows the assembly condition of a formwork. It is a top view which shows the state which has arrange | positioned the support work to the formwork. It is sectional drawing in the outer wall part of a concrete structure. It is sectional drawing in the outer wall part of the concrete structure which shows the state after performing a water stop process. It is a top view which shows the state of the thermal expansion deformation | transformation of the heat insulating material of a concrete structure. It is a top view which shows the connection part of the heat insulating material of the concrete structure in 2nd Embodiment. It is a top view which shows a part of concrete structure in 3rd Embodiment. It is explanatory drawing which shows the structure of the separator part applied to both heat insulation structures. It is a top view of the pad member used for both heat insulation structures. It is sectional drawing in the AA in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Formwork 12 Heat insulating material barrier plate 14 Barrier plate 20 Inner contact plate 22 Adhesion part 24 Contact plate 28 Outer contact plate 40 Separator 42 Main body part 44 Fastening rod 46 Fastener 48 Water stop material 50 Vertical end thick material 52 Contact member 55 Side end thick 60 End thick frame (support work)
70 Concrete structure 80 Plug 82 Filling material 90 Mesh material 100 Outer wall material 102 Frame (baseboard)
104 anchor

Claims (8)

In the mold forming method for assembling a heat insulating form structure that becomes a heat insulating material dam plate formed by connecting a plurality of heat insulating materials among the dam plates arranged to face each other at a required interval,
Adjacent Gutotomoni straddle the abutting portion on the inner surface side between the heat insulating material, a step of attaching the inner spliced plate to pass over the entire height direction of the heat insulating material,
Applying a contact plate to the outer surface side of the contact portion of the heat insulating material, and using the fixing screw that penetrates the corresponding contact plate and the heat insulating material, the inner contact plate, the heat insulating material, and the contact plate Fixing a plurality of positions in the height direction of the heat insulating material, forming a heat insulating dam plate ,
Using a separator, maintaining the gap between the opposing weir plates at a predetermined interval;
And a step of constructing an end thick material frame so that the vertical end thick material is brought into direct contact with the outer surface of the heat insulating material weir plate ,
The step of attaching the inner attachment plate to the heat insulating material includes fixing the inner attachment plate to the heat insulating material with a butyl rubber double-sided tape, and then using the fixing screw from the contact plate side. Forming method characterized by being a process of attaching to a mold.   A step of applying an outer contact plate across the contact portion between adjacent heat insulating materials to the outside of the contact plate, and sandwiching the heat insulating material weir plate together with the inner contact plate by a locking material. The mold forming method according to claim 1, further comprising:   The mold forming method according to claim 1 or 2, wherein the inner contact plate is pressed into recesses formed on both side surfaces of the contact portions of adjacent heat insulating materials. The separator is
A cylindrical body disposed between facing weir plates, and
The inner space of the cylindrical body and at least one end side has a fastening rod that protrudes outward through one dam plate,
On the outer surface of the dam plate, the dam plates are held at a predetermined interval by fastening the dam plates between the two dam plates via the tubular body by a fastener attached to the fastening rod. The formwork formation method as described in any one of Claims 1-3. The method includes the step of holding a skirting board for attaching an outer wall material on the outer surface of the heat insulating material barrier plate by an anchor penetrating the base material and the heat insulating material barrier plate. The form forming method according to any one of the above. A concrete is placed in a mold formed by the mold forming method according to any one of claims 1 to 5, and after curing, a necessary part of the mold is removed, thereby removing a heat insulating dam plate. A method for constructing a concrete structure, characterized by being left on the wall surface of the concrete structure . 7. The method for constructing a concrete structure according to claim 6 , wherein the concrete structure is a concrete wall of a basement, and the heat insulating dam plate is left on the outer wall side of the concrete wall . After claimed Da設concrete in any one mold formed mold frame formed by the method according of the claim 1 to 5, were after curing, take the required site of mold removal,
It includes a step of applying mortar to the heat insulating material barrier plate and the mesh member after attaching the mesh member so as to straddle the connecting portion on the outer surface side of the connecting portion of the heat insulating material barrier plate. Construction method of concrete structure to do.

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