JPH1046713A - Form for concrete wall or foundation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight form which is excellent in heat insulating performance by forming at least one concrete form member of foaming synthetic resin, and integrally remolding a horizontal member locking projection part on an inside surface of the form member. SOLUTION: A concrete form 11 is formed by mutually and oppositely arranging rectangular heat insulating panels 12 composed of foaming synthetic resin, and projection parts 14 are integrally molded at prescribed intervals on the inside surface side of the heat insulating panels 12. Notch grooves 17 to lock reinforcement bars 13 are arranged in these projection parts 14, and vertical grooves are arranged so as to communicate with these notch grooves 17, and one ends of separators 30 and the reinforcement bars 13 are locked. Next, the heat insulating panels 12 are stacked in the vertical and lateral direction, and the reinforcement bars 13, vertical reinforcements and horizontal reinforcements are arranged, and concrete is placed in a hollow part 15 and a space 16, and mortar is applied to a wall material applying surface 22. Therefore, a wall having heat insulating performance or a foundation can be constructed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete wall or foundation form suitable for use, for example, in building a building wall or foundation.

[0002]

2. Description of the Related Art For example, as one of the wall construction methods for constructing a wall of a building or the like, a rectangular form block is used and laid vertically and horizontally on a plane. Formwork block construction is generally known.

FIGS. 8 and 9 show an outline of a conventional general construction method of a building wall in this type of formwork block construction.
In the figure, reference numeral 1 denotes a basic form block made of concrete. The form block 1 includes a pair of rectangular panel portions 2 and 3 arranged in parallel with each other at a predetermined interval. The parts 2 and 3 are plate-like ribs 4
To form a substantially H-shape.

The height of the rib part 4 is the panel part 2,
3 is set lower than the height h, and is disposed apart from each other on the inner side in the longitudinal direction, whereby the hollow portion through which the vertical streaks 5 pass through the inside and the left and right butted portions is The space through which the horizontal streaks 6 pass is formed in the upper part, respectively.

Then, the formwork block 1 is laid up and down and left and right while arranging a vertical streak 5 and a horizontal streak 6 inside, and a cast-in-place concrete 7 is poured into the space and the hollow portion to form the vertical streak 5. By embedding the horizontal stripes 6 in the concrete 7, the walls of the building are constructed.

When building the foundation of a building,
The foundation formwork is assembled with a control panel and concrete is poured into the inside.However, if the foundation has heat insulation, heat insulation should be attached to the inside of the foundation formwork in contact with the concrete. The heat insulating material imparts heat insulating properties.

[0007]

However, in the above-mentioned conventional wall structures, all of them are mainly constituted by concrete blocks, and concrete is generally inferior in heat insulation performance. In the case of a covered heat insulating structure, it is necessary to separately prepare a heat insulating material and attach it around the wall so as to surround the entire building.

[0008] In addition, the concrete form block,
At present, the size is limited in order to facilitate transportation and handling. For example, in the case of the form block (H-shaped block) shown in FIG. 8, the length 1 is 390 mm.
The height h is 190 mm and the width t is 150.180.2
Since each is set (standardized) to 00 mm, there is a problem that more formwork blocks are required, and considerable time is required to construct the wall. In addition, the hands of skilled workers were also required.

On the other hand, when constructing a heat insulating foundation, a large amount of wood resources such as a control panel must be used, and additionally, a heat insulating material must be separately attached to the control panel and the like. However, there is a problem in that such work requires the hands of a skilled worker and the work is complicated.

In view of the above, the present invention makes it possible to construct walls and foundations with a lightweight and highly heat-insulating formwork, and to perform work easily even without skilled workers. It is an object of the present invention to provide a concrete wall or foundation formwork that can be made and, consequently, contribute to a reduction in the use of wood.

[0011]

SUMMARY OF THE INVENTION According to the present invention, at least one formwork member constituting a concrete formwork such as a wall of a building or a foundation is formed of a foamed synthetic resin, thereby forming a concrete wall or a foundation. The frame itself is provided with a heat insulating structure. Further, the other mold member is not limited to the foam synthetic resin, and may be formed by a control panel or the like. Furthermore, in order to more easily attach a horizontal member for defining the concrete casting width constant, a convex portion for locking the horizontal member is integrally formed in advance on the inner surface of a form member made of a foamed synthetic resin. I have.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a form member located outside a building is formed of a foamed synthetic resin, and an outer heat insulating structure is completed. The protrusion is integrally provided, and a locking portion for locking the separator as a horizontal member is provided on the protrusion. Further, if the concave and convex fitting portions having substantially complementary shapes are provided on the upper surface or the lower surface of the form member, and further on both side end surfaces, the form member can be extended in rows in the vertical and horizontal directions. . The other form member facing this may be made of another material such as a control panel, but if it is made of a foamed synthetic resin, the inner heat insulation is completed in addition to the outer heat insulation.

Further, if the concave and convex fitting portions are formed in two rows on the upper and lower surfaces of the mold member which is a fitting surface with another mold member, it can be extended vertically or horizontally in a stable posture. Can be.

If the form member is formed in a substantially rectangular panel shape, it can be used also for a wall or a foundation.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a concrete form 1 for constructing a wall of a building according to an embodiment of the present invention.
1 is shown.

The concrete formwork 11 is composed of rectangular heat-insulating panel portions 12, 12 which are arranged to face each other. These heat insulating panels 12 and 12 have the same shape, and are formed by in-mold foaming using the same mold.

Here, the resin foam constituting the heat insulating panel portions 12 is formed by foaming a synthetic resin such as expanded polystyrene, expanded polyurethane, expanded polyvinyl chloride or expanded polyolefin. The expansion ratio is, for example, about 5 to 100 times, preferably about 20 to 80 times, and more preferably about 30 to 70 times.

As described above, by forming the heat insulating panel portion 12 from a foamed synthetic resin, the weight can be reduced, and the concrete form 11 itself has high heat insulating performance and sound absorbing effect. Down can be planned.

Convex portions 14 are integrally formed at predetermined intervals on the inner surface of the heat insulating panel portion 12, that is, on the inner surface forming the outer surface of the cast concrete. Thus, a hollow portion 15 communicating between the convex portions 14 in the vertical direction is formed.

The protrusions 14 are arranged at a predetermined pitch p ₁ , and the outermost double protrusions 14
Only from said end face of the insulating panel unit 12 pitch p ₁ of the half of the distance a (p _1/2) are disposed inwardly, whereby 2
When the number of insulating panels 12 are arranged against the left-right direction, as shown in FIG. 2, the hollow portion 15 at a predetermined pitch p ₁ in between the insulating panel portion 12 adjacent is adapted to be configured .

Further, since the convex portion 14 is formed substantially at the center in the height direction, a space 16 is formed above and below the convex portion 14 so as to communicate with the lateral direction.

The hollow portion 15 has an EP for signal distribution.
S (Electrical piping space), DS for air conditioning duct
(Duct space), PS (piping space) for water supply / drainage pipes, and the like, as shown in FIG.

The space 16 is for allowing the hollow portions 15 to communicate with each other and for inserting a horizontal streak 20 extending in the interior thereof. That is, when constructing a building wall by sequentially stacking the concrete form 11 in the vertical and horizontal directions in the vertical direction, the vertical streaks 19 for reinforcing the walls are provided in the hollow portion 15 communicating in the vertical direction with the horizontal streaks 20. Are located in spaces 16 communicating with each other in the lateral direction. Cast-in-place concrete 21 as a filler is poured into the hollow portions 15, 16, and the vertical bars 19 and the horizontal bars 20 are embedded in the concrete 21. It has become.

A cutout groove 17 is formed in the convex portion 14 as a locking portion for locking the width stripe 13, and a vertical hole 18 is formed in communication with the cutout groove 17. ing. One end of a horizontal member such as a separator or a width stripe is locked in the vertical hole 18 of the projection 14. In the present embodiment, a reinforcing bar 13 cut into a predetermined length as a lateral member and having a function as a separator is inserted therethrough to reinforce the concrete wall in the width direction, and a predetermined interval is provided between the pair of heat insulating panel portions 12. Is set to

The shape of the reinforcing rod 13 locked in the projection 14 depends on the fixing means to the other mold member.
As shown in FIG. 1, the shape is selected from a U-shape having both ends bent, an L-shape having one end bent, and an I-shape having both ends bent.

As described above, since the concrete formwork 11 is made of a foamed synthetic resin, the weight can be reduced. For example, the formwork 11 has a length L of about 900 mm. its height H ₁ of about 300
mm. Insulation panel 1
The width T _{1 in} a state where the reinforcing bar 13 is inserted between the bars 2 and 12 is appropriately set, but is approximately 240 mm in the embodiment.

The outer surface of the heat insulating panel section 12 is formed as a wall material application surface 22. That is, the wall material application surface 22 is used to form a wall material by applying an exterior material such as cement mortar 24 and the like, and a large number of base grooves 25 are formed in parallel over substantially the entire area. ing.

The base groove 25 is formed so as to surround a tapered surface 26 which gradually inclines upward in thickness in a substantially U-shaped plane opening downward with a peripheral wall groove 27 rising in the thickness direction. It is configured.

Then, after the concrete forms 11 are laid and arranged, as shown in FIG. 3, for example, a cement mortar 24 or the like is applied to the wall material application surface 22 to construct an outer wall. Part of cement mortar 24,
It enters the base groove 25 and is held so as not to flow downward.

The base groove 25 is not limited to the embodiment, but may have the reverse shape, that is, a tapered surface that gradually slopes downward and inward. With such a shape, peeling of the cement mortar 24 is less likely to occur, which is suitable for a long-term use.

Although the concrete form 11 is formed by in-mold foam molding, it can be formed by post-processing using a trowel or the like having an outer shape conforming to the shape of the base groove 25, and further by cutting. it can.

Further, in this embodiment, the underlying groove 25
Are arranged in parallel, that is, at equal intervals in the vertical and horizontal directions, but may of course be arranged in a staggered manner or randomly.

In this embodiment, in order to stack the concrete molds 11 while positioning them with each other by the molds 11 themselves, the following irregular fittings are formed on both upper and lower end surfaces of the heat insulating panel portion 12. A joint is provided.

That is, on the upper end surface of the heat insulating panel portion 12, two concavo-convex fitting portions are formed in two rows along the length direction. Of these, the inner concave / convex fitting portion has two protrusions 2
8a and 28a, and a concave portion 29 adjacent to the outside thereof, and two protrusions 28a and 28a
A flat surface 28b is formed between them. This flat surface 2
A flat separator 30 to be described later is inserted into 8b, and the flat surface 28b is formed to be lower by a depth corresponding to the thickness of the separator 30.

In the outer concave / convex fitting portion, convex portions 31 and concave portions 32 having substantially the same length are alternately formed, but the convex portions 31 at both ends are smaller than the two convex portions 31 from the center. About 1 /
It is formed to a length of about two.

On the other hand, the lower end surface of the heat insulating panel portion 12 is formed with two rows of concave / convex fitting portions along the length thereof, and inside the concave portion 33 with which the convex portion 28 is fitted. But,
On the outside, concave portions 34 into which the convex portions 31 are fitted are formed at predetermined intervals. That is, in the heat insulating panel portion 12, an uneven fitting portion having a shape complementary to the uneven fitting portion formed in two rows on the upper end surface is formed on the lower end surface. Thereby, as shown in FIG. 4, the heat insulating panel sections 12 can be closely overlapped in the vertical direction.

On the left and right end surfaces of the heat insulating panel portion 12, a fitting concave / convex groove 41 and a fitting concave / convex groove 42 are formed.
Since the fitting concave / convex grooves 41 and 42 are formed in complementary shapes to each other, the two heat insulating panel portions 12 and 12 can be closely arranged in the left-right direction.

The separator 30 is made of synthetic resin or metal, and has U-shaped pieces 30b at both ends of a flat portion 30a. The separator 30 is provided with a pair of panel units 1 that are opposed to each other.
When the concrete 21 is poured into the inside of the space between the two and 12, the space is kept constant, and is formed by bending a rectangular flat plate. The separator 30 can be omitted in some cases by using the above-described reinforcing rod 13 serving also as the separator.

According to this embodiment, the heat insulating panel section 12,
While stacking 12 in the up, down, left and right directions, longitudinal bars 19 and horizontal bars 20 are arranged inside the reinforcing bars 13 and the like, and concrete 21 is poured into the hollow portion 15 and the space 16. A wall of a building can be constructed by applying a wall material such as cement mortar 24 to the wall material application surface 22 on the outdoor side and further attaching an exterior plate or an interior plate.

In this manner, the concrete form 11 made of a foamed synthetic resin is light in weight and has high heat insulation performance itself, so that the concrete form 11 made of a foamed synthetic resin is substantially the same as a normal form block. The frame can be used to quickly and easily build the walls of the insulation structure. Further, the outer wall and the inner wall can be formed by easily covering the exposed surface of the wall with a wall material such as cement mortar 24 and attaching an exterior material or an interior material as necessary.

In the above embodiment, the concrete formwork is formed of two heat insulating panel parts 12 and 12 made of synthetic resin.
However, if only the side arranged outside the building is constituted by the heat insulating panel portion 12 made of foam synthetic resin,
As shown in FIG. 5, the mold member on the other side arranged inside the building may be made of a woody material such as the control panel 34. When such a concrete formwork 40 is used, an L-shaped threaded rod having one end bent may be used as a horizontal member to be locked in the projection 14 of the inner wall.

As shown in FIG. 5, when an L-shaped horizontal member is used, only one end of the horizontal member may be locked in the convex portion 14 and the other end may be embedded in the concrete 21. it can. In FIG. 5, reference numerals 36 and 37 indicate a vertical flutter and a horizontal flutter.

In the above embodiment, the heat insulating panel 12
Was used as a member constituting the concrete form member 11 for a wall, but may be used as a form member for constructing a foundation of a building, for example.

Further, as shown in FIG. 6, the present invention can be applied to a foundation with a footing. In this case, it is preferable to form the convex portions 43 and 44 on the inner surface sides of the footing portion 41 and the fabric base portion 42 of the heat insulating panel portion 40, respectively. Then, between the pair of convex portions 43 or between the convex portions 44, U-shaped reinforcing rods 45, 4 as horizontal members are provided.
6 and the like can be mounted as both width stripes and separators.

It is to be noted that a concave / convex fitting portion having a shape substantially complementary to the concave / convex fitting portion formed on the lower end surface of the form member 47 disposed thereon is formed on the upper end surface of the heat insulating panel portion 40. In addition, the upper mold member 47 serving as the mold for the wall can be stacked in multiple stages while positioning.

Further, as shown in FIG. 7, the footing formwork part 50 and the cloth foundation formwork part 51 are formed separately, and a wall formwork member 52 is further superimposed thereon. It is also possible to go. That is, the footing formwork part 50, the cloth foundation formwork part 51, and the wall formwork member 52
In addition, it is also possible to provide the convex portions 14 and to attach the reinforcing rods 55, 56, 57 as horizontal members to the convex portions 14, respectively.

In this case, the fabric base mold section 51 and the wall mold section 52 can be molded using the same mold. In this case as well, if the shape of each upper end face and the shape of each lower end face are formed in a substantially complementary shape, and the shape of each of the left and right end faces is formed in a substantially complementary shape, it is possible to closely overlap in the vertical and horizontal directions. You can go along.

For example, the uneven fitting portion 53 formed on the upper end surface of the footing forming frame member 50 and the fabric base forming frame portion 51
The concave-convex fitting portion 54 formed on the lower end surface of the cloth foundation is formed to have a substantially complementary shape, and the concave-convex fitting portion formed on the upper end surface of the fabric base form portion 51 is formed on the footing form member 50. What is necessary is just to make the shape of the uneven | corrugated fitting part 53 formed in the end surface.

In the above-described embodiment, a footing-equipped foundation has been exemplified as a foundation formwork, but the present invention can of course be applied to a vertically rising foundation.
Further, the horizontal members locked to the protrusions 14 are all shown as rebar rods. However, the horizontal members may be made of a synthetic resin, and a plate-like member such as the separator 30 is used. The shape is not limited at all. In short,
What is necessary is just to form the engaging part of another shape in the convex part 14.

According to this embodiment, if at least one of the concrete form members is formed of a foamed synthetic resin, and this concrete form member is disposed outside the building,
External insulation can be completed. In addition, since the convex portion for locking the horizontal member is formed on the mold member made of the foamed synthetic resin, it is possible to easily assemble the mold.

[0051]

As described above, according to the concrete wall or foundation formwork according to the present invention, at least:
Since the formwork member arranged outside the building can be formed of a foamed synthetic resin, the outer heat insulation is achieved, and the protrusion for locking the horizontal member which can also have the function of a reinforcing bar or a separator is provided. Since the portion is formed on the inner surface, the transverse member can be mounted by a simple mounting operation. In addition, it is possible to construct a wall or a foundation of a building having heat insulation performance, and furthermore, it is possible to extend a plurality of steps without any gap in the vertical and horizontal directions.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view when a concrete formwork according to one embodiment of the present invention is used for a wall.

FIG. 2 is a front view when the concrete forms of the embodiment are arranged in the width direction.

FIG. 3 is a cross-sectional view of the heat insulating panel of the embodiment in a state where concrete is poured into the heat insulating panel.

FIG. 4 is a perspective view when the heat insulating panel portions of the embodiment are arranged in a vertical direction.

FIG. 5 is a sectional view showing a modification of the embodiment.

FIG. 6 is a cross-sectional view when the concrete form member of the present invention is applied to a footing-equipped foundation.

FIG. 7 is a cross-sectional view of the case where the concrete form member of the present invention is applied to a footing-equipped foundation formed separately.

FIG. 8 is a perspective view showing a conventional mold block.

FIG. 9 is a perspective view showing a state when a wall is constructed using a conventional form block.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Concrete formwork 12,40 Insulation panel part 13,35,45,46,55,56,57 Reinforcing bar (lateral member) 14 Convex part 21 Concrete 30 Separator 41,41 Concavo-convex groove for fitting

Claims (12)

[Claims] 1. By arranging at predetermined intervals,
At least one concrete form member of the set of concrete form members that defines the width of the concrete wall is formed from a foamed synthetic resin by in-mold foam molding, and the inner surface of this one concrete form member is A concrete wall formwork, wherein a plurality of projections to which one ends of the horizontal members are fitted are integrally formed at predetermined intervals. 2. The concrete wall form according to claim 1, wherein a locking portion for fitting one end of the horizontal member is formed on the convex portion. 3. An upper and lower end surface of the one concrete form member is formed with concave and convex fitting portions having shapes substantially complementary to each other, and another concrete form member is provided above one concrete form member. The concrete wall formwork according to claim 1, wherein when the members are arranged, the upper and lower concrete form members are immovably positioned by engagement of the concave and convex fitting portion. 4. The concrete fitting member according to claim 3, wherein a plurality of recesses and protrusions are formed on an upper end surface and a lower end surface of the concrete form member in two rows in a length direction thereof. Formwork for concrete wall. 5. A concave and convex fitting groove having a shape complementary to each other is formed on both right and left end surfaces of said one concrete form member,
When another concrete form member is arranged on the side of one concrete form member, the right and left concrete form members are immovably positioned by the engagement of the concave and convex fitting grooves. The concrete wall form according to any one of claims 1 to 4, wherein: 6. By arranging at predetermined intervals,
At least one concrete form member of a set of concrete form members that defines the casting width of the concrete foundation is formed from foamed synthetic resin by in-mold foam molding, and the inner surface of this one concrete form member is A concrete foundation formwork, wherein a plurality of projections to which one ends of the horizontal members are fitted are integrally formed at predetermined intervals. 7. The concrete foundation form according to claim 6, wherein a locking portion for fitting one end of the horizontal member is formed on the convex portion. 8. The one concrete form member comprises a footing form part and a cloth base form part integrally formed with each other, and the upper end face of the cloth base form part has 7. The concrete according to claim 6, wherein a concave / convex fitting portion having a shape substantially complementary to a concave / convex fitting portion formed on a lower end surface of a form member made of a foamed synthetic resin fitted thereon is formed. Formwork for foundation. 9. The one concrete form member comprises a form part for fabric foundation and a form part for footing formed separately from each other, and upper and lower end faces of the form part for fabric base. In addition, an uneven fitting portion having a shape substantially complementary to each other is formed, and at the upper end surface of the footing mold portion, the uneven fitting portion formed on the lower end surface of the cloth foundation mold portion is substantially complementary. 7. The concrete foundation formwork according to claim 6, wherein a concave-convex fitting portion having a shape is formed. 10. The concrete form member is a form part for fabric foundation for constructing a substantially vertical rising portion, and has a mold made of a foamed synthetic resin fitted thereon on an upper end surface thereof. The concrete foundation form according to claim 6, wherein an uneven fitting portion having a shape substantially complementary to the uneven fitting portion formed on the lower end surface of the frame member is formed. 11. The method according to claim 9, wherein the concave / convex fitting portions are formed in two rows in a length direction of each mold portion.
Or the formwork for concrete foundations according to claim 10. 12. A concrete concave / convex fitting groove having complementary shapes is formed on both left and right end surfaces of the one concrete form member, and another concrete form member is provided on a side of one concrete form member. The concrete foundation member according to any one of claims 6 to 11, wherein the right and left concrete form members are immovably positioned by the engagement of the concave and convex fitting grooves when the is disposed. Formwork.