JPH0893100A - Method for forming concreted structure part - Google Patents

Abstract

PURPOSE: To construct a concreted structure part where exterior members including heat insulating plates are joined without requiring extra works and processes while the concrete placing construction method is conformed to. CONSTITUTION: Part of a concrete form is formed from a member 6 which serves also as an exterior member. This member 6 is made by laminating an exterior board 1 and heat insulating plate 2 by adhesives etc., and is consolidated with a concrete placed part 28 formed in a space 10 which is partitioned by the concrete form. Toward the space 10 a coupling member 27 is protruded from that surface of the heat insulating plate 2 situated on the space 10 side, and the protruding part 27e bites into the concrete placed part 28, and thereby the exterior member 6 (heat insulating plate 2) is bonded strongly with the concrete placed part 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a concrete pouring structure.

[0002]

2. Description of the Related Art When a concrete wall is made by pouring concrete, for example, wooden, plywood or steel molds are generally arranged and fixed so as to face each other so as to withstand the pouring pressure. A method of placing a concrete in a concrete placing space formed between molds and then removing the formwork after the concrete is solidified to obtain a cast concrete portion is adopted. here,
When the heat insulating plate material made of foamed resin or the like is mounted on the outer wall side of the cast concrete portion, the heat insulating plate material is separately attached by an adhesive or the like after removing the form.

[0003]

However, in this method, it takes a considerable amount of time and labor to mount the heat insulating plate material on the surface of the cast concrete portion after removing the formwork,
Therefore, the cost of the exterior work of the concrete structure part is also high. An object of the present invention is to provide a concrete structure portion to which an exterior member including a heat insulating plate is joined, without requiring extra work and steps, while complying with the concrete placing method.

[0004]

In order to solve the above problems, the method for forming a concrete pouring structure portion of the present invention has a multi-layer structure including a heat insulating plate material as at least a part of the formwork, and A feature is that the formwork / exterior member is integrated with the cast concrete part by using the formwork / exterior member that also serves as the exterior member, and placing concrete in the concrete placement space partitioned by the formwork. And

As the heat insulating plate material, for example, one made of a foamed resin body can be used. Further, as the heat insulating plate material, it is also possible to use a material provided with a coupling member projecting from the plate surface side of the concrete pouring space side into the pouring space. This connecting member may be integrally formed with the heat insulating plate.

The formwork / exterior member is a siding board,
It is possible to use a mortar panel and other exterior finishing materials that include a layer forming an exterior surface and a heat insulating plate located inside the layer forming the exterior surface.
In this case, the layer forming the exterior surface and the heat insulating plate material can be arranged integrally.

As the formwork / exterior member, at least the layer forming the exterior surface may be covered with a waterproof member. As the waterproof member, for example, a resin sheet can be used.

[0008]

According to the method for forming a concrete pouring structure portion of the present invention, at least a part of the form is formed by the form / exterior member containing the heat insulating plate material, and the form is formed by pouring concrete. In addition, since the exterior member and, by extension, the heat insulating plate material is integrated with the cast concrete part, it is not necessary to attach the exterior member including the heat insulating plate material to the concrete part after casting, and it is not necessary to remove the formwork. You can save labor and cost.

Next, if a heat insulating plate having a connecting member protruding from the plate surface on the concrete pouring space side into the pouring space is used, the pouring concrete portion and the heat insulating plate material can be obtained by pouring concrete. Are joined by the joining member, and the joining strength between the formwork / exterior member and the cast concrete portion is enhanced.

By using a mold and exterior member including a layer forming an exterior surface such as a siding board or a mortar panel, it is possible to save the labor of mounting these layers. If the layer forming the exterior surface is covered with a waterproof member such as a resin sheet, the exterior surface is prevented from being soiled or damaged during construction.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. First, as shown in FIG. 1, an exterior board 1 as a layer forming an exterior surface is attached to a heat insulating plate material 2 with an adhesive or the like and laminated to form a form / exterior member 6. A resin sheet (for example, a vinyl sheet) 3 as a waterproof member is detachably attached to the exterior surface side of the exterior board 1 by using an adhesive tape or an adhesive having a relatively weak adhesive force. In addition, a plurality of coupling members 27 project from the plate surface of the heat insulating plate member 2 on the side where the exterior board 1 is not mounted.

The exterior board 1 comprises cement, glass fiber,
Various known materials such as cement-based siding obtained by mixing and molding reinforcing fibers such as polymer fibers, hard fiber boards and mortar panels can be used. Also, on the exterior surface side, embossing,
It is also possible to use those that have been subjected to various outer wall finishes by baking, printing, attaching a decorative sheet, spraying a finish coating material, painting, and the like.

The heat insulating plate material 2 is formed by molding a foamed material of thermoplastic resin such as polystyrene resin, urethane resin, polyethylene resin, etc. into a plate shape (for example, trade name: Styrofoam), and also heat foam such as urea foam and phenol foam. A plate material composed of a foam of a curable resin, a soft fiber board, and a plate material composed of a foam of an inorganic substance such as foam concrete or foam glass can be used. Here, for example, as shown in FIG. 2, the coupling member 27 includes a bolt 27a whose head side is embedded and integrated with the head 27 and a nut 27b screwed into the bolt 27a when the heat insulating plate 2 is molded. Can be configured.

After a predetermined number of formwork / exterior members (hereinafter also simply referred to as "exterior members") 6 are produced, as shown in FIG.
They are stacked in an upright state and connected in the lateral direction to form one large exterior surface side formwork 7 as a whole. On the other hand, a normal form material 8 made of plywood or a steel plate is arranged in the same manner so as to face the exterior surface side mold 7 and substantially in parallel with it, thereby forming an interior surface side mold 9. Then, as shown in FIG. 4, the space portion sandwiched between the molds 7 and 9 is a concrete pouring space (hereinafter, simply referred to as a pouring space) 10 for forming a concrete wall portion. A reinforcement structure 11 is arranged in the casting space 10. Here, each formwork and exterior member 6 is arranged so that the heat insulating plate material 2 faces the casting space 10 side.

When the formwork / exterior member 6 and the formwork material 8 are assembled, they are installed at the positions shown in FIGS. 3 and 4 by a method substantially similar to the conventional formwork used when pouring concrete. • Fixed, but this procedure is described below.
As shown in FIG. 3, the form and exterior member 6 and the form member 8 are
Butt up in the horizontal and vertical directions, respectively. Here, the exterior member 6 and the mold member 8 on both sides facing each other in parallel are held at a predetermined interval by the metal fitting unit 12, and are prevented from falling outward due to the pouring pressure of concrete.

As shown in FIGS. 5 and 6, the metal fitting unit 12 includes a rod 15 having male screw portions 14 formed on both ends thereof, and washers 16 respectively screwed to the male screw portions 14,
It includes a tightening member 17 or the like that is screwed into the male screw portions 14 from the outside of the washers 16 (in FIG. 5,
Only one of the fastening members 17 is drawn). Tightening member 17
The plate members 18 facing each other in substantially parallel to each other are connected at one side by a connecting portion 19 and elongated holes 20 are formed so as to penetrate in the plate thickness direction.
The wedge member 21 is inserted through the elongated hole 20 of FIG. A weld nut 23 is welded to the inside of the connecting portion 19, and the male screw portion 14 of the rod 15 is screwed in through the insertion hole 22.

Regarding the method of using the metal fitting unit 12, as shown in FIG. 6, a rod 15 is bridged over the upper edge of the form / exterior member 6 and the form member 8 and washers 16 on both sides are attached to each member. Try to touch each inside. Next, another exterior member 6 and the mold material 8 are abutted on the upper side, and the fastening members 17 are tightened from both sides of the rod 15 to connect the left and right exterior members 6 and the mold material 8 to each other. Further, as shown in FIG. 3, a plurality of vertical pressing trees 2 are provided on the plate surfaces of the members 6 and 8 on both sides.
5 is applied at a predetermined interval, and a plurality of lateral pressing trees 26, which are substantially orthogonal to the vertical pressing trees 25, are applied from the outside at predetermined intervals. At this time, as shown in FIG. 6, each lateral presser tree 26 is passed between the upper and lower plate members 18 of the fastening member 17. Then, as shown in FIG. 6, the wedge member 21 is inserted into the elongated hole 20 of each tightening member 17, and the head of the wedge member 21 is hit with a hammer or the like to forcibly push the wedge member 21 downward. 26 is urged in the lateral direction, and the left and right exterior members 6 and the form material 8 are fastened inwardly through the vertical presser tree 25.

As shown in FIG. 3, for example, as shown in FIG. 3, the metal fitting unit 12 is arranged at a vertical or horizontal intersection N where four interior members 6 or exterior members 8 meet at their corners, or at a portion which is not continuous in the horizontal direction. It is set at the joint near the end of the member.

After the assembly of the exterior surface side mold 7 and the interior surface side mold 9 as shown in FIG. 3 is completed by using the metal fitting unit 12 as shown in FIG. 3, as shown in FIG. Concrete C is cast into the interior of the joint 10, and the projection 27e of the joining member 27 into the placement space 10 including the nut 27b is covered with the concrete C. Then, as shown in FIG.
When the concrete C is solidified, the cast concrete portion 28 is formed, and the nut 27b of the coupling member 27 bites into this to prevent it from coming off, so that the exterior member 6 (heat insulating plate material 2) is firmly joined to the cast concrete portion 28. Be combined with. Further, since the exterior board 1 is covered with the resin sheet 3, it is possible to prevent the exterior surface from being soiled or damaged during the placing of the concrete C, for example. Here, the resin sheet 3 may be omitted if the exterior surface is not so contaminated when the concrete C is cast.

After that, the wedge member 21 shown in FIG. 6 is pulled out from the tightening member 17, the vertical and horizontal pressing trees 25 and 26 are removed, and as shown in FIG. 8, the tightening member 17 is removed from both ends of the rod 15. Then, as shown in FIG. 9, the portion 15b of the rod 15 protruding to the outside of the interior member 6 and the exterior member 8 is threaded using an appropriate tool, and the resin sheet 3 is peeled from the exterior member 6 to remove the exterior member. The concrete pouring structure part 29 in which the exterior board 1 and the heat insulating plate material 2 are integrated on the surface side is obtained. In addition, the protrusion 1
When the damage to the exterior surface due to the trace M from which 5b is removed or other causes becomes a problem, the damaged portion is appropriately repaired by putting putty or the like. Here, as shown in FIG. 9, at the intermediate portion of the rod 15, a protrusion 15c extending outward from the axial center thereof.
By forming one or a plurality of these, it is possible to prevent the rod 15 from idling in the cast concrete portion 28 when the projecting portion 15b is threaded. The protrusion 15b is
It may be broken using an appropriate tool.

On the other hand, as shown in FIG. 10, on the interior surface side of the cast concrete portion 28, the form material 8 forming the interior surface side form 9 is removed, and instead, a gypsum board material 70 as an interior member, and Is decorated with interior finishing materials such as cloth and wallpaper.

The connecting member 27 bites into the heat insulating plate material 2 and the cast concrete portion 28, and the joint portion (the leg portion of the bolt 27a in the example of FIG. 2) embedded over the heat insulating plate material 2 and the cast concrete portion 28, respectively. It suffices to have a bite portion (the head of the bolt 27a and the nut 27b in the example of FIG. 2), and a metal fitting having a different shape having the above-mentioned coupling portion and the bite portion can be similarly used as a coupling member. For example, in FIG.
As shown in FIG. 12, a metal fitting 77 is formed by bending both ends of a strip-shaped plate member, the middle part of which is a joining part 77a, and the bent both ends are biting parts 77b, and, as shown in FIG. A plate-shaped biting portion 87b is provided at both ends of the rod-shaped shaft portion 87a.
It is possible to use various types of metal fittings 87 such as those joined by welding. When using a screw member such as the bolt 27a, the nut 27b (that is, the biting portion on the side of the cast concrete portion) is made by lengthening the leg portion that bites into the cast concrete portion 28 or raising the screw thread.
Even if omitted, a sufficient retaining effect can be obtained.

Next, the formwork / exterior member 6 may be composed of three or more layers as long as it includes the heat insulating plate 2. For example, as shown in FIG. 13, as the exterior board 1, a siding having a two-layer structure in which the exterior surface side of a gypsum board 1b is covered with a metal plate 1a such as a steel plate or an aluminum plate (so-called gypsum composite metal siding) is used. If used,
The formwork / exterior member 6 includes these two layers and at least three layers of the heat insulating plate material 2.

The concrete pouring structure portion to which the method of the present invention is applied is not limited to a vertically rising concrete wall portion, but can be used for forming an oblique wall or a structure other than a wall such as a concrete ceiling portion. However, it can be applied. For example, when applied to a ceiling part, the formwork / exterior member 6 is arranged at the bottom of the casting space where the ceiling part is to be formed.

Further, as shown in FIG. 14, the interior surface side of the concrete placing space 10 is divided by a formwork / interior member 90 containing a gypsum board material 91 instead of the usual formwork material 8 and concrete is placed. By doing so, it is possible to obtain the cast structure part 29 in which the interior member 90 is integrated with the interior surface side of the cast concrete part 28. In this case, the gypsum board material 91 included in the formwork / interior member 90 is covered with the resin sheet 3 in order to prevent the gypsum board material 91 from getting wet with water from the poured concrete or rain falling on the concrete pouring site. There is. Then, a plurality of connecting members 97 are driven into the formwork / interior member 90 before pouring concrete or in a soft state of concrete immediately after pouring. As the connecting member 97, a tapping screw, a screw nail, an ordinary nail or the like can be used. These connecting members 97 are used for the interior member 90 and by extension the gypsum board material 9
The separation of the concrete part 1 from the concrete part 28 is prevented.

The metal fitting unit 12 used for assembling the mold and exterior member 6 and the mold material 8 is not limited to the one shown in FIG. For example, rod 15
Instead of mounting the tightening member 17 on the male screw part 14 of FIG. 15, the nut 93 may be tightened via a washer 92 as shown in FIG. In this case, the vertical and horizontal holding trees 2 shown in FIG.
5 and 26 are not used. Further, as shown in FIG. 16, one having stopper fittings 94 whose both ends are bent and bent may be used. As shown in FIG. 17, the rod 15 is inserted through the stopper fitting 94, and
Also, the nut 93 is tightened in a state where the frame material 8 is sandwiched between the stopper fitting 94 and the washer 92.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a method for forming a formwork / exterior member.

FIG. 2 is a side sectional view showing a coupling member.

FIG. 3 is a perspective view showing a state in which a concrete placing formwork is assembled by the formwork / outer member and the formwork material.

FIG. 4 is a sectional view showing the structure of a mold.

FIG. 5 is a perspective view of a metal fitting unit.

FIG. 6 is a cross-sectional view showing how the metal fitting unit is attached to the mold.

FIG. 7 is a cross-sectional view showing a state in which concrete is placed on a formwork.

FIG. 8 is a cross-sectional view showing a state where the tightening member is removed from the mold.

FIG. 9 is a cross-sectional view showing a state in which the form material on the interior surface side is removed.

FIG. 10 is a cross-sectional view showing a state in which a plaster board material is mounted on the interior surface side of a cast concrete portion.

FIG. 11 is a cross-sectional view showing a modified example of the coupling member.

FIG. 12 is a sectional view showing another modification of the coupling member.

FIG. 13 is a cross-sectional view showing an example in which the formwork and exterior member has a three-layer structure.

FIG. 14 is a cross-sectional view showing an example in which a formwork / interior member including a gypsum board material is integrated on the interior surface side of a cast concrete portion.

FIG. 15 is a side sectional view showing a first modified example of the metal fitting unit.

FIG. 16 is a perspective view showing a second modified example of the metal fitting unit.

FIG. 17 is an explanatory diagram of its operation.

[Explanation of symbols]

 1 Exterior Board (Layer Forming Exterior Surface) 2 Heat Insulation Plate Material 3 Resin Sheet (Waterproofing Member) 6 Formwork / Exterior Member 10 Concrete Placing Space C Concrete 27, 77, 87 Joining Member 28 Casting Concrete Section 29 Concrete Casting Structure

Claims (8)

[Claims] 1. A formwork / exterior member having a multi-layered structure including a heat insulating plate material as at least a part of the formwork and also serving as an exterior member, and concrete is placed in a concrete placing space partitioned by the formwork. A method for forming a concrete pouring structure part, characterized in that the formwork / exterior member is integrated with the pouring concrete part by pouring. 2. The method for forming a concrete pouring structure according to claim 1, wherein the heat insulating plate is made of a foamed resin material. 3. The concrete pouring according to claim 1 or 2, wherein the heat insulating plate is provided with a coupling member protruding into the pouring space from the plate surface side of the concrete pouring space side. Method of forming structure. 4. The method for forming a concrete pouring structure portion according to claim 1, wherein the heat insulating plate material is one in which the joining member is integrally molded. 5. The mold and exterior member is used which includes a layer forming an exterior surface and a heat insulating plate located inside the layer forming the exterior surface.
5. A method for forming a concrete pouring structure part according to any one of 1. 6. The method for forming a concrete pouring structure according to claim 5, wherein the formwork / exterior member is one in which a layer forming the exterior surface and the heat insulating plate are integrally arranged. 7. The method for forming a concrete pouring structure according to claim 5, wherein at least the layer forming the exterior surface is covered with a waterproof member as the formwork / exterior member. 8. The method for forming a concrete pouring structure according to claim 7, wherein a resin sheet is used as the waterproof member.