JPH09296550A - Separator for building wall or foundation, and concrete form structure using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a wall or a foundation of the desired thickness in a simple work by arranging a separator for construction of a wall or a foundation in which a connection part is formed into a rod-shape between a pair of form members which are opposite to each other. SOLUTION: Projected parts 14... projected in the thickness direction are formed on an inner surface of a pair of concrete form members 11... formed of the foaming synthetic resin. Separators 13... for construction of a wall or a foundation in which connection parts 13a... to connect each end part are formed into a rod-shape are provided. The rod-shaped separator 13 is arranged between the form members 11 arranged opposite to each other and separated by the prescribed clearance, and each end part is inserted in a recessed part in the projected part 14 on the inner surface of the form member 11. The thickness of the wall or the foundation can be adjusted in a simple work. In addition, because the separator 13 is of rod-shape, the flow of the concrete placed in the mold can not be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall or foundation building separator that is optimal for use, for example, in building a wall or foundation of a building and a concrete formwork structure using the same.

[0002]

2. Description of the Related Art As one of the wall construction methods for constructing a wall of a building, a so-called form block in which rectangular form blocks are used and laid in a plane in the vertical and horizontal directions. Construction is generally known.

An outline of a conventional general construction method for a building wall in this type of form block construction is shown in FIGS. 6 and 7.
In the figure, reference numeral 1 designates a basic form block (H-shaped block) made of concrete. The form block 1 is composed of a pair of rectangular panel portions 2, 3 arranged in parallel with each other at a predetermined interval. The panel portions 2 and 3 are integrally connected to each other by plate-shaped rib portions 4 on their opposing surfaces 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.

[0005] The formwork block 1 is laid up and down and left and right while arranging a vertical streak 5 and a horizontal streak 6 therein, and a cast-in-place concrete 7 is poured into the space and the hollow portion. By embedding the horizontal stripes 6 in the concrete 7, the walls of the building are constructed.

[0006]

However, all of the above-described conventional wall form blocks are integrally molded products made of concrete, and therefore, their size is large in order to facilitate transportation and handling. Is currently limited,
For example, the form block (H-shaped block) shown in FIG. 6 above.
, The length l is 390 mm and the height h is 190 m
Since m and the width t are set (standardized) to 150, 180 and 200 mm, respectively, more formwork blocks are required, and it takes a considerable time to construct the wall. there were.

[0007] Further, since concrete is generally inferior in heat insulation performance, when the whole building is covered with a heat insulation material, a separate heat insulation material is prepared and the surrounding wall is surrounded by the whole building. Had to be attached to.

In view of the above, the present invention makes it possible to easily construct walls and foundations in a short time with a lightweight and excellent heat insulating mold, and to adjust the thickness of the walls and foundations. It is intended to provide a wall or foundation building separator and a concrete formwork structure using the same.

[0009]

SUMMARY OF THE INVENTION The present invention is a formwork for constructing a concrete wall or foundation by forming a concrete formwork member for constructing a wall or foundation of a building from foamed synthetic resin. It has a heat insulating structure. As the separator that regulates the distance between the molds to be constant, a bar-shaped separator having an appropriate length is used. Further, in order to install this separator, a convex portion protruding in the thickness direction is provided on the inner surface of the mold.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a concrete formwork member for constructing a wall or foundation of a building is formed of a foamed synthetic resin to complete a heat insulating structure, and also a foamed composite is formed on the inner surface of the concrete formwork member. A convex portion made of resin is integrally provided, and a bar-shaped separator is locked to the convex portion to regulate the interval between the form members.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to an embodiment of the present invention and particularly show a concrete formwork member 11 for constructing a wall surface of a building.

The concrete formwork member 11 is made of a foamed synthetic resin, and is arranged so as to be abutted on the left or right, that is, laterally, or abutted on the vertical direction as shown in FIG.

Further, as shown in FIG. 3, the concrete formwork 12 is constructed by arranging the concrete formwork members 11 so as to face each other by being separated by the placement width of concrete in the thickness direction of the wall. .

Here, these concrete formwork members 11
The resin foam constituting the is formed by foaming a synthetic resin such as expanded polystyrene, expanded polyurethane, expanded polyvinyl chloride or expanded polyolefin, and the expansion ratio is, for example, 5 to 100 times, It is preferably 20 to 80 times, more preferably about 30 to 70 times.

By forming the concrete form member 11 from the foamed synthetic resin in this way, the weight is reduced, and the concrete form member 11 itself has high heat insulating performance and sound absorption effect, and further corrosion is prevented. And the cost can be reduced.

On the inner surface side of the concrete form member 11, that is, the inner surface forming the outer surface of the cast concrete, convex portions 14 also made of foamed synthetic resin are integrally formed at predetermined intervals. Thus, a hollow portion 15 communicating between the convex portions 14 in the vertical direction is formed.

The convex portions 14 are arranged at a predetermined pitch p ₁ , and the outermost convex portions 14 are
When disposed from the end face of the concrete form member 11 inwardly by the pitch p ₁ of the half of the distance a (p _1/2), was thereby arranged against two concrete form member 11 in the left-right Hollow portions 15 are also formed between the concrete formwork members 11 adjacent in the direction at a predetermined pitch p ₁ .

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

The hollow portion 15 is an EP for signal distribution.
S (Electrical piping space), DS for air conditioning duct
(Duct space) and PS (pipe space) for water supply and drainage pipelines. In addition, the space 16
Connect the hollow portions 15 to each other.

That is, when the concrete formwork members 11 are stacked vertically in the horizontal direction to construct a wall of a building, a cast-in-place concrete 21 as a filler is placed in the hollow portions 15 and 16. A reinforcing bar material is embedded in the concrete 21.

A base groove 27 is formed on the outer surface of the concrete formwork member 11 for applying an exterior material such as cement mortar 24. The base groove 27 is composed of a large number of recesses arranged in parallel in a substantially rectangular shape.

The protrusion 14 has a separator 1 which will be described later.
A recess for locking 3 is formed. That is,
As shown in FIG. 4, this recess includes a notch groove 17 formed in the vertical direction and a vertical hole 18 communicating with the notch groove 17.
And the separator 13 is locked in the vertical hole 18.

As shown in FIGS. 1 to 3, the separator 13 is formed by bending both ends of a reinforcing bar material having a predetermined length to form a U-shape. And a rod-shaped connecting portion 13a connecting both ends thereof.

The engaging portion 20 is the vertical hole 18 of the convex portion 14.
Is inserted into. In this way, the interval between the pair of concrete formwork members 11 is set by bridging the rod-shaped separator 13 having the locking portions 20 at both ends between the opposing convex portions 14. In addition, in order to adjust the thickness of the wall to be thicker than usual, the connecting portion 13 of the separator 13 is previously prepared.
The length of a may be increased, and the length can be set freely.

Further, the shape of the locking portion 20 locked in the convex portion 14 can be exemplified by bending both ends substantially vertically as described above. Are not limited to the examples. For example, as shown in FIG. 5, the minor axes a, b, and c can be extended in three directions, and the substantially T-shaped locking portion 30 can be formed here. In this way, the locking portion 3
When 0 is formed in a T shape, the recess 32 having a shape corresponding to the T shape may be formed in the convex portion 14.

As described above, the shapes of the engaging portions formed at both ends of the separator and the shape of the recess formed in the convex portion 14 are not limited to those in the embodiment. In short, any other shape may be used as long as it does not move the separator 13.

Further, in this embodiment, the two vertically adjacent
In order to connect the two separators 13 to each other, a vertical streak member 25 having substantially U-shaped hook portions 26 at both ends is used.
The three are connected.

The vertical streak member 25 as described above is used for the separator 1
It may be passed between the cloth streaks 29 in addition to passing it between the three. Then, after laying out concrete formwork members 11 as described later, as shown in FIG. 3, cement mortar 24 or the like is applied to the outer surface to construct an outer wall. At this time, cement mortar 24 is used. Is partially held in the base groove 27 formed here so as not to flow downward.

Further, in this embodiment, the concrete form members 11 are positioned to each other by the form members 11 themselves so that the upper and lower or left and right end surfaces are formed in a substantially complementary shape so that they can be stacked in multiple stages. There is. This allows
As shown in FIG. 2, it is possible to closely arrange in the vertical direction or the horizontal direction.

Hereinafter, such a concrete form member 1 will be described.
The work procedure when constructing a concrete wall using 1 and the separator 13 will be described. First, a large number of concrete formwork members 11, a bar-shaped separator 13,
An appropriate number of long reinforcing bar materials for cloth reinforcement and vertical bar members 25 having hooks at both ends and having a predetermined length are prepared.
Then, the concrete formwork members 11 arranged on the inner side of the building and the concrete formwork members 11 arranged on the outer side of the building are separated from each other by the placement width of the concrete and are abutted in the left and right directions, respectively. Line up. While performing this work, a bar-shaped separator 13 is bridged between the convex portions 14 of the pair of concrete formwork members 11 facing each other, and the interval between the concrete formwork members 11 is fixed and fixed immovably. Alternatively, in advance, the separator 13
Thus, a concrete formwork 12 in which two concrete formwork members 11 are assembled in a predetermined width can be prepared and installed.

After that, a long cloth rebar 29 is placed over the separator 13 and the intersection of the rod-shaped separator 13 and the cloth rebar 29 is connected by a binding wire 30. Note that the binding wires 30 do not have to be hung on all the intersecting portions, and may be appropriately scattered.

Then, another concrete formwork member 11 is fitted to the upper stage, and in this case as well, a pair of concrete formwork members 11 and 11 facing each other are placed in the lower concrete form as in the above case. Frame member 1
The rod-shaped separator 13 is fitted between the pair of convex portions 14 facing each other while being fitted to the upper portions of the first and the first portions 11. The vertical stirrup member 2 is provided between the upper and lower separators 13 and 13 so that the first-stage concrete formwork member 11 and the second-stage concrete formwork member 11 are connected to each other so as not to come off.
Multiply by 5. In this case, one hook portion 26 of the vertical streak member 25 may be hooked on, for example, the upper separator 13 and then hooked on the lower separator 13.

In this way, the vertical stripe member 25 is provided between the other separators 13 arranged at predetermined intervals in the left-right direction.
Cross over. The positions where the vertical streak members 25 are bridged may not be between all the separators 13 as shown in FIG. 2, but may be between every other separator 13.

As described above, the upper concrete form member 11 and the lower concrete form member 11 are connected via the separator 13. Then, a concrete formwork for a wall can be constructed by further fitting the concrete formwork member 11 further thereon and further extending it to the height of the wall.

The vertical streak members 25 can be stretched not only between the vertically adjacent separators 13 but also between the vertically adjacent cloth streaks 29. In this way, the concrete formwork members 11 are arranged at predetermined intervals in the vertical and horizontal directions to construct the wall, and then the concrete 21 is placed in the hollow portion 15 and the space 16 as shown in FIG. Then, after that, a wall material such as cement mortar 24 is applied to the interior groove 27 on the indoor side and the outdoor side, and an exterior plate or an interior plate is attached to construct a building wall.

As a result, the concrete formwork 11 made of expanded synthetic resin is light in weight and has a high heat insulating property in a manner substantially similar to that of an ordinary formwork block. The frame can be used to quickly and easily build the walls of the insulation structure. Moreover, when the concrete is cast in the concrete form, the separator 13 is rod-shaped, so that the flow of the concrete is not hindered. Therefore, concrete can be poured into every corner.

In the above embodiments, the present invention has been described by taking the separator for constructing the wall as an example, but the same separator may be used to construct the foundation of the building.

[0038]

As described above, according to the wall or foundation building separator and the concrete formwork structure using the same according to the present invention, the concrete formwork member made of foamed synthetic resin can be used to easily form a foundation or You can build concrete formwork for walls. Further, the form members can be stacked one by one from the lower side to the upper side.

Further, since the separator is rod-shaped, the flow of concrete is not blocked even when concrete is placed in the concrete form. Therefore, quickly guide the poured concrete,
Concrete can be poured in a predetermined range.

Since a large number of concrete formwork members and separators having the same shape are used, preparation for processing does not take time and effort. Further, by preparing a separator having an appropriate length, a foundation or wall having a desired thickness can be constructed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wall or foundation building separator according to an embodiment of the present invention in a state of being locked to a concrete formwork member.

FIG. 2 is a perspective view showing a concrete formwork structure using the wall or foundation building separator shown in FIG.

FIG. 3 is a cross-sectional view when concrete is poured into the concrete formwork structure of the embodiment.

FIG. 4 is an enlarged perspective view showing a part of the concrete formwork member shown in FIG. 1.

FIG. 5 is an exploded perspective view showing a wall or foundation building separator according to another embodiment of the present invention and a concrete formwork structure using the same.

FIG. 6 is a perspective view showing a form block used in a conventional construction method.

FIG. 7 is a perspective view showing a state when a wall is built using the formwork block shown in FIG.

[Explanation of symbols]

 11 Concrete Formwork Member 13 Separator 13a Connection Part 14 Convex Part 20 Locking Part 32, 40 Recess

Claims (2)

[Claims] 1. A pair of concrete form members made of foamed synthetic resin, which are arranged to face each other at a predetermined interval, are locked at both ends, and a connecting portion for connecting the both ends is formed in a rod shape. Separator for wall or foundation construction characterized in that 2. A pair of concrete form members made of foamed synthetic resin, each having a convex portion protruding in the thickness direction formed on the inner surface thereof, and a concave portion formed in the convex portion. A concrete formwork structure, characterized in that the pair of concrete formwork members are connected by inserting both ends of a rod-shaped separator.