JPH09242086A - Heat insulating footing panel which also serves as form and constructing method of heat insulating footing using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently place concrete up to a corner part where concrete is hardly placed so as to give fixed strength by giving high heat insulating ability to a form itself. SOLUTION: This form is constituted out of heat insulating panels which also serve as form for integratedly forming a concrete placing space of a footing of a building and a continuous footing. At the time, an opening part 15 as the pouring port of concrete is provided on the corresponding part to the footing of one panel part arranged inside the building, in a pair of heat insulating panels 11a, 11b opposite to each other, forming the cross section into a nearly projecting shape or an L-shape, and made of a synthetic resin foam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating foundation panel which also serves as a formwork and is suitable for constructing a cloth foundation with footing for a building in a cold region, and a method of constructing a heat insulating foundation using the same.

[0002]

2. Description of the Related Art In recent years, in general wooden constructions, a heat insulating material may be provided on a concrete foundation in order to enhance the heat insulating effect indoors and to prevent distortion of the skeleton due to a difference in temperature.

As a basis of a wooden building, for example, FIG.
As shown in Fig.3, abandoned concrete 2 is placed on the rubble stone 1 which has been compacted by the rammer, and footing 3
It is known that the base 6 is fixed by the anchor bolts 5 inserted into the cloth foundation 4, and the cloth foundation 4 is erected on the footing 3.

In the case of arranging a heat insulating material on such a concrete foundation, conventionally, a heat insulating panel made of synthetic resin foam is temporarily fixed to one of the wooden concrete molds made of a control panel or the like, and one of these molds is used. A concrete placing space was formed by the frame and the other concrete formwork, and concrete was placed in the placing space. Then, after hardening of the concrete, a pair of concrete forms made of a control panel or the like was removed, whereby the heat insulating panel was attached to the concrete.

However, a series of operations for constructing such a concrete foundation requires a skilled worker such as a formworker, a large amount of wood and a great deal of labor.

[0006] Therefore, today, while reducing the use of wood, a basic formwork is made of a heat insulating material made of resin foam so that the foundation of the heat insulating structure can be constructed without a skilled worker. The heat insulation foundation panel to be constructed and its heat insulation foundation construction method are being adopted.

In the case of constructing a concrete pouring space by the resin foam itself, as shown in FIG. 6, for example, a concrete pouring space 8 whose both surfaces are sealed by two resin foam panels 7, 7 is provided. After defining, then inserting a separator or the like (not shown) between the panels 7 and 7 to set the concrete placing width, and further arranging the vertical and horizontal reinforcing bars 9, and then the concrete C from the upper opening 10 It was pouring and building a concrete foundation with footing.

[0008]

However, when a concrete foundation with footing is constructed using the resin foam panels 7 and 7 as in the above-mentioned conventional case, as shown in FIG. When C is poured, the concrete C cannot be poured to the originally planned part, and as a result, the inflowing concrete C does not have a predetermined shape and is partially solidified in a thin-walled state. There were things that happened. This is particularly noticeable when the water content is reduced in order to secure the strength of the foundation. As a result, in order to prevent the strength of the concrete foundation from being insufficient, the resin foam panel 7,
It was necessary to make the width between 7 thicker than a preset value or to increase the water content in order to increase the inflow of concrete.

In view of the above situation, the present invention makes it possible to easily and quickly construct a cloth foundation with footing for a building by providing the mold itself with a high heat insulating property, and it is difficult to pour concrete. An object of the present invention is to provide a heat-insulating foundation panel that also serves as a formwork and can be used to construct a foundation using the same, by which concrete can be sufficiently poured into the corners to give a predetermined strength.

[0010]

Means for Solving the Problems In the present invention, when a space for placing a cloth foundation with a footing is constructed by a heat insulating foundation panel that also serves as a form made of a foamed synthetic resin, it is possible to reach a corner where concrete has been difficult to flow. A concrete spout is provided separately from the upper opening so that concrete can be sufficiently reached. Moreover, the formwork member additionally provided with the concrete spout is used as a formwork member inside a building. Then, without arranging the concrete spout on the side facing the outside of the building, a complete external heat insulating structure is formed. Also, except for the part that becomes the spout of concrete, the heat insulating material is interposed, so even if cold heat is transmitted from the ground so as to cross the width direction of the panel, the cold heat impairs the heat insulating property of the foundation. It will not be done.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the heat insulating foundation panel which also serves as a formwork of the present invention, a spout for concrete is separately provided in the vicinity of the boundary between the okel 1 teaching and the cloth foundation inside the building. Moreover, no concrete spout is formed on the surface facing the outside of the building.

On the other hand, when concrete is actually poured, it is possible to pour the concrete from the opening near the boundary between the footing and the cloth foundation and at the same time from the upper opening.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a heat insulating foundation panel 30 that also serves as a formwork according to an embodiment of the present invention. In FIG. 1, the left side is the outside of the building and the right side is the inside of the building, that is, the living room side.

The heat insulating foundation panel 30 also serving as a formwork is composed of a footing formwork part 11 forming a convex bottom part and a cloth base formwork part 12 forming an upright part in a rectangular flat plate shape. The cloth foundation mold part 12 is formed integrally with the footing mold part 11.

Such a heat insulating foundation panel 30 also serving as a formwork
Is made of foamed synthetic resin, and the placement width of the concrete is determined by arranging the pair of mold parts made of the foamed synthetic resin at a predetermined interval in the width direction. That is, the footing form part 11 is composed of one form part 11a arranged on the outside of the building and the other form member 11b arranged on the inside of the building, and these are separated from each other. By adjusting the spacing, the thickness of the foundation is determined. Similarly, the cloth foundation mold part 12 also has one mold part 12a and the other mold part 12b.
It is composed of

Here, the heat insulating base panel 30 which also serves as the formwork is used.
The resin foam constituting the is made of, for example, expanded polystyrene, expanded polyurethane, expanded polyvinyl chloride or expanded polyolefin, and the expansion ratio is, for example, 5 to 100.
Times, preferably 20 to 80 times, more preferably 30 times
It is about 70 times.

As described above, the heat insulating foundation panel 30 also serving as the formwork.
By making the resin foam, it is possible to reduce the weight and to have high heat insulation performance and sound absorption effect.
Furthermore, it is possible to prevent corrosion and reduce costs.

The footing form part 11 has a substantially rectangular opening 15 formed in the form part 11b on the inside of the building. Further, the opening 15 as described above is not formed in the outer mold part 11a. This opening 15 is used as a spout when pouring concrete later.

Further, as shown in FIGS. 1 and 2, the heat insulating base panel 30 is provided with separators 13 and 14 made of metal or synthetic resin for defining a constant interval therebetween. Has been done. Of these, the separator 13 that is placed on the bottom is formed by integrally forming U-shaped locking pieces 13a and 13b that are open upward at both ends of the plate-like object. The lower ends of the frame portions 11a and 11b are inserted.

The separator 14 not only connects the upper parts of the mold parts 12a and 12b of the cloth base mold part 12 but is arranged further above, for example, the wall mold 2
It is formed so that 0a and 20b can be connected at the same time. That is, the separator 14 has locking pieces 14a and 14b that are open in the vertical direction at both ends of the plate-shaped material. As a result, the separation distance at the upper part of the cloth foundation mold part 12 can be kept constant, and the wall building molds 20a, 20a can be sequentially extended to the upper part.

The formwork and heat insulating foundation panel 30 according to one embodiment of the present invention is formed as described above, and a method of constructing a heat insulating foundation using this will be described below. First of all, make a certain interval on the upper part of discarded concrete etc.,
One formwork part 11a and the other formwork part 11b are laid side by side along the basic part of the building, and at this time, an opening 15 is formed in the surface located outside the building. The mold part 11b is not arranged. That is, opening 1
All the formwork parts 11b in which 5 is formed are arranged on the inner side of the building. Then, in the lower part of the mold part 11a and the mold part 11b, a separator 13 for connecting them is interposed, and the width between the molds, that is, the concrete placement width is defined. Next, the separator 14 is interposed on the upper part. Further, as shown in FIG. 2, predetermined vertical streaks 18 and horizontal streaks 19 and the like are arranged, vertical and horizontal flutters are arranged as necessary, and then the concrete C is put into the footing form part 11 The concrete C may be poured from the upper opening 21 while the concrete C is poured from the opening 15.

The concrete C can be cast into the footing and the cloth foundation at one time, but can also be cast in several times. In any case, by placing concrete C from the side opening 15,
As shown in, concrete can be poured to the corner of the footing. Of course, if a vibrator or the like is used when the concrete is filled to some extent, it is possible to more reliably flow the concrete to the corner even if the concrete has a low water content and poor fluidity. Also,
The opening can be easily surfacing by hand.

Further, according to the present invention, since the opening 15 is not formed on the surface located outside the building, the cold heat is transmitted from the surrounding ground, so that the foundation is affected by the cold heat. I will not receive it. It is possible to have a completely external heat insulating structure that prevents the cold heat of the ground from being conducted to the indoor side.

In the above embodiment, the pair of mold parts 11a and 11b facing each other are separately formed, but they may be integrally formed. In this case, the mold parts 11a and 11b may be integrally connected by a rib made of synthetic resin. When the mold frame portions 11a and 11b are connected to each other by ribs or the like, the ribs define a constant separation distance.
Can also be omitted.

Further, the height of the portion corresponding to the cloth foundation can be made higher in cold regions. Further, in order to extend such a formwork / heat insulating base panel 30 along the base part of a building without a gap, the formwork part 1
It is also possible to form a convex portion and a concave portion on the front and rear ends of 1a and 11b, and connect them in the extending direction while fitting them. Further, if the concave-convex fitting portion is provided between the upper portion of the mold frame portion and the panels 20a and 20b arranged thereon, the vertical connection can be made firm.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example,
In the above-described embodiment, the footing portion is described as a foundation that rises diagonally. However, instead of this, as shown in FIG. 3 in which the same elements are denoted by the same reference numerals, the footing portion may be formed on a flat surface. Applicable. Even in that case,
It goes without saying that the opening 15 for placing concrete is not formed on the surface facing the outside of the building. Moreover, an intermediate aspect between the both is also applicable. That is, the surface facing the outside of the building can be applied to a foundation having an inclined footing as shown in FIG. 2, and the surface facing the inside can be applied to a foundation having a flat footing as shown in FIG. In addition, when concrete is poured in several times, for example, first, the first concrete is poured from the opening portion 15 and the concrete is filled to the same level as the opening portion 15. After performing the surfacing of 15, it is possible to further pour concrete from the upper opening 21 and load the concrete to the cloth foundation portion. Furthermore, it is needless to say that concrete can be poured from the upper opening 21 while pouring concrete from the opening 15.

Further, a vibrator or the like can be inserted through the opening 15 or the upper opening 21 to promote the inflow of concrete into the corners. As described above, the number of times of placing concrete and the method of placing the concrete are not limited to the above-mentioned examples, and various modes can be adopted.

In the above embodiment, the pair of frame members forming the casting space are both made of foam synthetic resin, but one frame member located outside the building is made of foam synthetic resin. If formed, the other formwork member located inside the building may be formed from any material, for example,
You may form with a control panel etc. Then, the inner formwork member such as the control panel or the like can be removed after the concrete is poured, and then the surroundings can be backfilled.

Further, in the above-mentioned embodiment, the heat insulating basic panel also serving as a mold having a substantially convex cross section is described. However, the shape of the mold is not limited to the convex shape in cross section, and for example, as shown in FIG. The cross section may be formed in an L shape.

Also in the case of forming a mold having an L-shaped cross section, as in the above-mentioned embodiment, if the mold member 31 arranged on the outside is made of foamed synthetic resin, the mold arranged on the inside is formed. The frame member 32 may be made of any other material. Also in this case, the mold member 3 arranged inside is also used.
2 is provided with an opening 15 through which concrete is poured.

Further, the pair of frame members 31, 32 arranged in parallel may be integrally formed by ribs or the like,
Alternatively, the form members 31, 32 may be formed separately.

[0032]

Since the present invention has the above configuration,
The foundation panel itself has high heat insulation performance, and has a complete outer heat insulation structure, which makes it possible to easily and quickly construct a foot foundation with excellent heat insulation performance without separately preparing heat insulation material. Moreover, it is possible to reduce the cost by inexpensively manufacturing the heat insulating foundation panel that also serves as the formwork.

Further, the concrete can be surely flowed to a portion where it is difficult for the concrete to flow, and a predetermined strength can be provided. In addition, the surface located on the outside of the building does not have an opening for pouring concrete and is covered with a heat insulating material, so even if cold ground heat is transmitted, The insulation is not impaired and the heat insulation is always good.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat insulating foundation panel that also serves as a formwork according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a work procedure when pouring concrete into a heat insulating foundation panel that also serves as a formwork of the embodiment.

FIG. 3 is a cross-sectional view showing a modified example of a heat insulating foundation panel that also serves as a formwork according to the present invention.

FIG. 4 is a cross-sectional view showing another embodiment of a heat insulating foundation panel that also serves as a formwork according to the present invention.

FIG. 5 is a perspective view showing an example of a conventional cloth foundation with footing.

FIG. 6 is a cross-sectional view when concrete is cast by a conventional formwork.

[Explanation of symbols]

 11 Footing Formwork Part 11a, 11b Formwork Part 12 Cloth Foundation Formwork Part 12a, 12b Formwork Part 15 Opening 30 Formwork Combined Insulation Foundation Panel

Claims (5)

[Claims] 1. A heat insulating foundation panel also used as a formwork for integrally forming a footing of a building and a casting space of a cloth foundation, which is a foamed synthetic material which faces each other and has a substantially convex cross section. It has a pair of heat insulating panel parts made of resin, and one of these heat insulating panel parts, which is arranged inside the building, has an opening for use as a concrete spout in the footing corresponding part of the heat insulating panel part. A heat insulating foundation panel that also serves as a formwork. 2. A foamed synthetic base panel that also serves as a formwork for integrally forming a footing of a building and a casting space of a cloth foundation, the foamed composite facing each other to form a substantially L-shaped cross section. It has a pair of heat insulating panel parts made of resin, and one of these heat insulating panel parts, which is arranged inside the building, has an opening for use as a concrete spout in the footing corresponding part of the heat insulating panel part. A heat insulating foundation panel that also serves as a formwork. 3. The formwork-insulating foundation panel according to claim 1, wherein the pair of heat-insulating panel portions are integrally connected to each other with a predetermined distance therebetween. 4. A heat insulating foundation panel also used as a formwork for integrally forming a footing of a building and a casting space of a fabric foundation, the transverse sections facing each other being substantially convex or substantially L-shaped. Among the pair of heat insulating panel parts made of the foamed synthetic resin, at least the heat insulating panel part arranged outside the building is formed of the foamed synthetic resin. 5. A pair of heat insulation panel parts made of foamed synthetic resin having a substantially convex or substantially L-shaped cross section facing each other, and arranged inside a building among these heat insulation panel parts. In a part corresponding to the footing in one of the heat insulation panel parts, a plurality of formwork and heat insulation panels provided with openings to serve as spouts for concrete are arranged side by side on discarded concrete etc., and when placing concrete, Construction of a heat insulating foundation characterized in that concrete is poured from a spout of concrete formed in the one heat insulating panel portion, and concrete is poured from an upper opening formed above between the pair of panels. Method.