JP3069042B2 - Concrete formwork structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a concrete formwork structure.

[0002]

2. Description of the Related Art FIG. 9 shows a formwork structure for constructing a wall of a conventional building. In this formwork structure,
The two plywood panels 1 and 2 are arranged at a predetermined interval, and the pair of plywood panels 1 and 2 are tied together by a binding material 3 such as a foam tie.
I try to hold it with 5.

[0003] In cold regions, etc., a heat insulating material is further attached to the concrete wall thus constructed, and the wall is provided with a heat insulating structure. By the way, today, wood is being effectively used. Therefore, as shown in FIG. 10, the formwork itself such as the plywood panels 1 and 2 is formed by heat insulating panels 6 and 7 made of a synthetic resin, and further, a plate-like or rod-like separator 8 and the like There is also known a formwork structure in which reinforcing bars 9 and 10 are arranged vertically and horizontally.

[0004]

However, in the formwork structure using the heat insulating panels 6 and 7, the work of inserting the separator 8 and the like between the heat insulating panels 6 and 7 and assembling the formwork at regular intervals is required. , It was troublesome.

[0005] Further, in the above-mentioned formwork structure, a long rebar material is required, which makes transporting work inconvenient. In addition, end processing such as cutting off the end of the rebar material is also required in construction work. It had to be performed, and the workability when working alone was poor.

In view of the above-mentioned circumstances, the present invention does not require the use of long reinforcing bars, facilitates the work of arranging reinforcing bars, and makes it easy for one person to construct a formwork. It is to provide a concrete formwork structure that can be used.

[0007]

According to the present invention, a steel bar having a predetermined length is used in place of a long longitudinal bar of a long object conventionally used. And this reinforced material,
One separator inserted between a pair of mold members and another separator adjacent to the separator are bridged.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the concrete formwork structure according to the present invention, the end of the separator may be hooked on the end face of the formwork member, or a protrusion may be provided on the inner surface of the formwork member and supported by the protrusion. Is also good. The reinforcing bar preferably has hooks at both ends, and the reinforcing bar is hung between two separators arranged diagonally above or below, or between two separators arranged right and left adjacent to each other. Good to pass. By using such a reinforcing material,
A strong formwork structure can be realized.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a wall construction separator 11 used in one embodiment of the present invention.
Shows a concrete form 18 into which the wall construction separator 11 is inserted.

The wall-building separator 11 is made of, for example, a steel plate, and is provided at both ends of a rectangular flat plate portion 12.
The locking portions 13 having a U-shaped cross section are bent.
The locking portion 13 is not limited to a U-shape, and may have another shape as long as it can be locked to the mold member 19 shown in FIG.

At the approximate center of the front and back surfaces of the flat plate portion 12, plate-shaped reinforcing bar fixing portions 14, 1 each comprising a projection are provided.
5 are fixed one by one by welding, and holes 16 for locking the reinforcing bars are formed in these reinforcing bar fixing portions 14 and 15. In addition, one end of the flat plate portion 12 has
7 are formed in the width direction.

On the other hand, as shown in FIG. 2, a concrete form 18 into which such a wall construction separator 11 is inserted is, as shown in FIG. 3, two rectangular molds made of a synthetic resin foam. It is composed of a frame member 19.

The form member 19 used in the present embodiment,
Reference numeral 19 denotes the same shape, which is foamed in the same mold. Here, the resin foam forming these mold members 19 is formed by foaming a synthetic resin such as expanded polystyrene, expanded polyurethane, expanded polyvinyl chloride or expanded polyolefin, and the like.
The expansion ratio is, for example, 5 to 100 times, and preferably 2 to 100 times.
It is about 0 to 80 times, and more preferably about 30 to 70 times.

As described above, by forming the frame member 19 from a foamed synthetic resin, the weight can be reduced, and the frame member 19 itself has a high heat insulating performance and a sound absorbing effect. Down can be planned.

Here, as described above, since the concrete formwork 18 is made of a foamed synthetic resin, the weight can be reduced. Therefore, as shown in FIG.
For example its length L is about 900 mm, a height H ₁ of about 3
It is set to 00 mm. The width T ₁ can be set as appropriate, but is about 240 mm in the embodiment.

The outer surface of the form member 19 is a wall material application surface 26. That is, the wall material application surface 2
6 is a cement mortar 27 as shown in FIG.
And the like, to form a wall material, and a large number of base grooves 28 are formed in parallel over substantially the entire area thereof.

As shown in FIG. 2, the base groove 28 is formed by a peripheral wall groove 30 which rises in the thickness direction, and opens downward around a tapered surface 29 which gradually inclines upward in thickness. It is configured so as to be substantially U-shaped.

After laying the form members 19 on which the base grooves 28 are formed so as to face each other, concrete 39 is poured into the inside as shown in FIG. Then, for example, a cement mortar 27 or the like is applied to form an outer wall. At this time, a part of the cement mortar 27 is held so as not to enter the base groove 28 and flow downward.

In this embodiment, in order to stack one of the mold members 19 while positioning them relative to each other, the upper and lower end surfaces of the mold members 19 are as follows. It is provided with a concave and convex fitting portion.

That is, on the upper end surface of the form member 19, two rows of concave and convex fitting portions are formed along the length direction. Among these, as shown in FIG. 2, the inner concave-convex fitting portion is composed of a convex portion 31 composed of two projections 31a and 31a and a concave portion 32 adjacent to the outer side. A flat surface is formed between 31a. On this flat surface, the above-mentioned flat plate-like wall construction separator 1 is provided.
1 is detachably provided. The flat surface is formed to be lower by a depth corresponding to the thickness of the wall construction separator 11.

The concave / convex fitting portion disposed outside along the length direction is composed of a convex portion 33 and a concave portion 34. The convex portions 33 at both ends are about 1% smaller than the convex portion 33 near the center. / 2 length. As described above, the upper and lower surfaces of the mold member 19 are formed with the concave and convex fitting portions having mutually complementary shapes, and the left and right end portions are also formed with the concave and convex fittings formed by the ridges extending in the vertical direction. A part is formed.

On the other hand, in the present embodiment, as shown in FIG. 5, short reinforcing bars 41, 42 having hooks 40, 40 at both ends are used instead of the conventional long reinforcing bars. . Here, the difference between the reinforcing bar 41 and the reinforcing bar 42 is the length of the linear portion. That is, the shorter rebar material 41
As shown in FIG. 6, the bar is arranged while bending in the lateral direction instead of the conventional horizontal bar. That is, it is bridged in the long hole 17 of the wall construction separator 11 arranged in the horizontal direction.
In addition, the longer reinforcing bar material 42 is extended over the reinforcing bar fixing portions 14 and 15 in a vertical and oblique direction.

The procedure for assembling a building wall form using the form member 19, the wall construction separator 11, and the reinforcing bars 41 and 42 will be described below. I do.

First, a pair of form members 19, 19 are arranged on the inside and outside of the building so as to be spaced apart from each other. The separator 11 is installed. At this time, the wall construction separators 11 are installed while changing the posture every other 180 degrees.

Thus, the mold member 19 and the second and third stages are stacked thereafter. Then, as shown by the broken line in FIG. 6, when the laying of the first, second or third formwork member 19 is completed, the reinforcing members 41 and 42 can be bridged as follows. Become.

That is, first, the long holes 17, 17 of the two wall construction separators 11, 11 arranged in the lowermost row A, respectively.
In the meantime, the hook portion 40 of the shorter reinforcing member 41 is locked. At this time, the wall construction separators 11 arranged in the horizontal direction
Since the postures are arranged in postures that are different from each other by 180 °, the reinforcing steel members 41 locked in the elongated holes 17 are arranged so as to draw a V shape as illustrated. Then, the ends of the two reinforcing bars 41 are inserted into one slot 17 from both sides.

On the other hand, a longer reinforcing steel member 42 is stretched between a number of wall construction separators 11 arranged in row B and a number of wall construction separators 11 arranged in row A therebelow. In order to pass over the long reinforcing member 42, the reinforcing member fixing portion 14 provided on the upper surface of the wall construction separator 11 in row A
Then, one hook portion 40 of the reinforcing bar material 42 is hooked, and the other hook portion 40 is hooked on the reinforcing bar fixing portion 15 formed on the lower surface of the separator 11 in row B located diagonally above. In this way, when the long reinforcing members 42 are diagonally extended in the rows A and B, the cross portions X of the reinforcing members 42 are formed in every other space. In addition,
The cross portions X are formed in every other space in the vertical direction.

In this manner, the reinforcing members 41 and 42 are incorporated into the rows A and B and the row C above them as shown. As described above, the upper mold member 19 and the lower mold member 19 are immovably connected to each other, and thereafter are stacked one by one.

In this way, by extending the form member 19 step by step in the height direction, a concrete formwork for building a wall having a predetermined height can be constructed. When the assembling of the form member 19 in the up, down, left, and right directions is completed, as shown in FIG.
Concrete 39 is poured into the formwork, and thereafter, a wall material such as cement mortar 27 is applied to the interior and exterior ground grooves 28, and an exterior panel or interior panel is attached to the wall of the building. Can be built.

In addition, a wall of a heat insulating structure can be quickly and easily constructed using a considerably large wall form in substantially the same manner as a normal form block. According to the present embodiment, the conventionally required linear long reinforcing bar is not required, and the hook portions 40 are provided at both ends, and the wall-building separator 11 is locked via the hook portions 40. Therefore, even when the work is performed by one person, the work can be easily performed, and the strength of the mold structure is increased.
Moreover, even when laying the formwork over a wide area, it is only necessary to prepare a large number of two types of rebar members 41 and 42 set to a certain length in advance, which simplifies the work in the preparation stage.
Also, it is not necessary to route long reinforcing bars. In the above embodiment, the form member 19 is made of a foamed synthetic resin, but may be made of wood instead of the foamed synthetic resin.

In the above embodiment, one long hole 17 is formed in the wall construction separator 11, but as shown in FIG. 7, one long hole 17 is provided at each end of the flat plate portion 12. May be. In this way, if the long holes 17 are provided one by one at both ends of the separator 11, two rebar members 41, 41 can be inserted between the separators 11, 11 arranged in the lateral direction. Thus, the cross portions X where the reinforcing bars intersect can be continuously formed between the separators 11 arranged adjacent to each other in the lateral direction.

Further, in the above embodiment, one reinforcing steel fixing portion 14, 15 is provided on each of the upper and lower surfaces of the wall construction separator 11.
However, instead of this, if two reinforcing bar fixing portions 14 and 14 are provided on the upper surface and two fixing portions 15 and 15 are provided on the lower surface, the cross portion X is formed in a continuous space in the vertical direction. can do.

Further, in the above embodiment, the reinforcing steel fixing portions 14 and 15 formed separately are fixed to the flat plate portion 12 by welding. However, a cut is formed in one plate material, and the cut is raised and raised. Reinforcing bar fixing portions can also be formed.

In the above embodiment, the locking members 13 of the wall construction separator 11 are attached so as to cover the upper end edge of the form member 19, but as shown in FIG.
A bulging portion 47 bulging inward may be provided near the end of the form member 19, and the end 49 of the separator 48 for wall construction may be hooked on the bulging portion 47.

As described above, if the separator 48 is locked in the bulging portion 47 on the inner surface, when concrete is poured into the formwork, the entire surface of the separator 48 is buried in the concrete. Even when the separator 48 is made of metal, there is no heat insulation defect such as a cold bridge. Further, the separators 11 and 48 may be formed of a synthetic resin as long as they have appropriate strength.

Further, the shape of the wall-building separator according to the present invention is not limited to the embodiment. In addition, the reinforcing steel 41
Alternatively, the cross portions X between the reinforcing bars 42 may be bound by a binding wire.

[0037]

As described above, according to the concrete formwork structure of the present invention, instead of using a long reinforcing member, a standardized reinforcing member is cut into short lengths. Bar arrangement work can be easily performed in the vertical and horizontal directions.

In addition, the concrete formwork can be easily constructed. In addition, since a large number of reinforcing bars having the same shape are used, no trouble is required in preparation for processing.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wall construction separator used in one embodiment of the present invention.

FIG. 2 is a perspective view of a concrete form into which the wall construction separator used in FIG. 1 is inserted.

FIG. 3 is a perspective view showing a state where a wall-building separator is attached to one of the formwork members constituting the concrete formwork according to the embodiment.

FIG. 4 is a sectional view when concrete is poured into the concrete formwork of the embodiment.

FIG. 5 is a plan view of a reinforcing bar employed in the embodiment.

FIG. 6 is a perspective view showing a concrete formwork structure when the wall construction separator according to the embodiment is employed.

FIG. 7 is a perspective view showing a concrete formwork structure according to another embodiment of the present invention.

FIG. 8 is a sectional view showing a concrete formwork structure according to still another embodiment of the present invention.

FIG. 9 is a perspective view showing a conventional concrete formwork structure.

FIG. 10 is a perspective view showing another conventional concrete formwork structure.

[Explanation of symbols]

 11,48 Separator for wall construction 19 Form member 41,42 Reinforcing material

Claims (3)

(57) [Claims] 1. A plurality of flat wall-forming separators formed to have a predetermined length are inserted between a pair of form members arranged opposite to each other and fixed to the upper surface of the form members. It is detachably connected integrally and has a width at the end of the flat plate portion formed on the flat plate separator.
Long hole formed in the direction and formed at the approximate center of the front and back of the flat plate
The end of the reinforcing member is detachably locked to the formed projection, so that one wall-constructing separator and another adjacent wall-constructing separator are connected by a reinforcing member. A concrete formwork structure characterized by the following. 2. The concrete formwork according to claim 1, wherein one or two of the projections for retaining the reinforcing bar are formed on each of the front and rear surfaces of the flat separator. Construction. 3. The concrete formwork structure according to claim 1, wherein one or two of the elongated holes for retaining the reinforcing bars are formed in the flat separator.