JP2897945B2 - Driving formwork connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure for a driven formwork, and more particularly to, for example, surplus water from a concrete wall.
The present invention relates to a drive-type formwork connection structure for connecting a drive-type form that can discharge spring water or water leakage.

[0002]

2. Description of the Related Art An example of a conventional driving form is disclosed in Japanese Patent Laid-Open Publication No.
No. 281863 and JP-A-4-70467. However, no specific study has been made on the connection structure of the drive-in formwork.

[0003]

At the time of construction, a plurality of driving formwork is connected to each other, but depending on the connection structure,
There was a risk of water leaking into the room. SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to provide a connection structure of a drive-in formwork which can prevent water leakage into a room.

[0004]

Means for Solving the Problems A first invention is a permeable layer,
It is a connection structure of a drive-in formwork for connecting a first formwork and a second formwork formed in this order from the concrete wall side on which the water guide layer and the heat insulation layer are cast. A first connecting piece formed at one end of the heat insulating layer; a first connecting piece formed at one end of the heat insulating layer in the second mold;
A second connection piece connected to the connection piece; and a water guide space formed in the water guide layer corresponding to the connection between the first connection piece and the second connection piece and passing water from the concrete wall. , The connection structure of the driving formwork.

[0005] A second invention is a drive-in formwork for connecting a first formwork and a second formwork formed in this order from a concrete wall side on which a permeable layer, a water guide layer and a heat insulating layer are cast. Connection structure formed at one end of the heat insulating layer in the first mold, and formed at one end of the heat insulating layer in the second mold and connected to the first connection piece. A second connection piece, a concrete storage part formed in the water guide layer and corresponding to a connection part between the first connection piece and the second connection piece and storing the poured concrete , and a concrete storage part.
At the entrance parallel to the concrete wall
It is a connection structure of a drive-in formwork provided with a protruding anchor portion and a sealing material inserted between the first connection piece and the second connection piece.

[0006]

According to the first aspect of the present invention, the water guiding space is formed on the concrete wall side from the connecting portion between the first connecting piece and the second connecting piece. The pressure is released and the water flows down the discharge space and is discharged. Therefore, it is possible to prevent water leakage into the room without inserting a sealing material between the first connection piece and the second connection piece.

[0007] In the second aspect of the present invention, since the sealing material is interposed between the first connecting piece and the second connecting piece, water leakage into the room can be prevented by the sealing material. In addition, a concrete storage portion for storing concrete cast on the concrete wall side from a connection portion between the first connection piece and the second connection piece is formed , and further, an anchor portion is provided at an entrance of the concrete storage portion.
Since it is formed , the joining property between the concrete wall and the formwork can be improved.

[0008]

According to the present invention, water leakage into a room can be prevented. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 4, a connection structure 10 for a driven formwork according to this embodiment includes a first formwork 16 for placing a concrete wall 14 of a basement 12 (FIG. 4). This is for connecting to the second formwork 18. The first mold 16 is
It includes a first panel 20a and a second panel 22a arranged in parallel with each other. First panel 20a and second panel 22
The air layer formed by the first panel 20a, the second panel 22a, and the ribs 24a is connected to the a by a plurality of ribs 24a extending in the vertical direction, and becomes a heat insulating layer 26a continuously in the horizontal direction. The first end of the heat insulating layer 26a
A fitting recess 28 as a connecting piece is formed to extend in the vertical direction. A plurality of vertically extending hollow blocks 30a are formed at predetermined intervals on the concrete wall 14 side main surface of the first panel 20a, and a water permeable layer such as a nonwoven fabric is formed on the concrete wall 14 side main surface of each block 30a. 32a is fixed. First panel 20a, block 30a and permeable layer 3
The space surrounded by 2a becomes the water conveyance channel 34a, and the region where the water conveyance channel 34a is formed becomes the water conveyance layer. Further, the block 30a formed at the outermost end of the first panel 20a has a water guide space forming member 36 for forming a water guide space 38 at the connection part in cooperation with a water guide space forming member 36b described later.
is formed, and the side end of the water-permeable layer 32a is supported by the water-guiding space forming member 36a.

The second mold 18 is, like the first mold 16,
The heat-insulating layer 26b, the water conduit 34b, the water-permeable layer 32b, and the like are provided. Are formed extending in the vertical direction. In addition, a block 30b formed at the outermost end of the first panel 20b has a first mold 16
A water-guiding space forming member 36b is formed in contact with the water-guiding space forming member 36a, and the water-guiding space forming member 36b is formed.
Thereby, the side end of the water permeable layer 32b is supported. In this embodiment, the water guide space forming members 36a and 36b are formed so as to be in contact with each other.
If the concrete can be prevented from flowing into water guide space 38 by means of and 32b, gap L may be formed between water guide space forming member 36a and water guide space forming member 36b, for example, as shown in FIG.

The first mold 16 and the second mold 18
Except for the water-permeable layers 32a and 32b, is integrally formed by extrusion molding of a synthetic resin having low thermal conductivity such as polyvinyl chloride. Referring to FIG. 4, when the concrete wall 14 is cast, first, a groove 46 is formed on the upper surface of a slab 44 in which a spring tank 42 is formed.
A water passage 48 is installed in 6. Then, the first mold 16, the second mold 18, and the like are assembled on the water passage 48 so that the bottom surface thereof contacts the stopper 50 of the water passage 48. At this time, as can be clearly understood from FIGS. 1 and 3, the fitting concave portion 28 of the first mold frame 16 and the fitting convex portion 40 of the second mold frame 18 are fitted, and the water guide space forming member 36a and the water guide space are formed. The forming member 36b comes into contact with the forming member 36b. Thereby, the water guide space 38 is formed at the connection part.

When connecting the first formwork 16 and the second formwork 18 at the corners of the chamber 12, for example, as shown in FIG. 5, a cornering connection member 52 is used. The corner connection member 52 is formed of the first panel 20 cut for length adjustment or the like.
a between the first panel 22a and the second panel 22a
4, a fitting concave portion 56 formed in a direction orthogonal to the fitting direction of the fitting convex portion 54 and fitted with the fitting convex portion 40 of the second formwork 18, and a block of the first formwork 16. The block 60 includes a block 60 forming a water guide space 58 in cooperation with the block 30a and a block 64 forming a water guide space 62 in cooperation with the block 30b of the second formwork 18, and the like. A water-permeable layer 66 such as a nonwoven fabric is fixed to the surface. On the other hand, when connecting the first mold frame 16 and the second mold frame 18 at the protruding corner of the chamber 12, for example, as shown in FIG. 6, a protruding connecting member 68 is used. The corner connection member 68 is fitted into the fitting concave portion 72 of the length adjusting member 70 (or between the first panel 20a and the second panel 22a cut for length adjustment or the like). The fitting projection 74 includes a fitting recess 76 formed in a direction orthogonal to the fitting direction of the fitting projection 74 and fitted with the fitting projection 40 of the second mold 18.

After the formwork is completed, the concrete wall 14 is cast between the first formwork 16 and the second formwork 18 and the concrete retaining wall 78 (FIG. 4). When the concrete wall 14 is cast, the cement paste of the concrete is impregnated into the permeable layers 32a and 32b, thereby joining the concrete wall 14 with the first formwork 16 and the second formwork 18 without using any special joining members. Is done.

Before the concrete wall 14 is hardened, the excess water of the concrete flows through the water permeable layers 32a and 32b into the headraces 34a and 34b and into the headrace space 38, flows down, and is provided in the waterway 48 and the slab 44. The water is discharged to the spring tank 42 through the provided water pipe 80.
On the other hand, after the concrete wall 14 is hardened, the water leaked to the surface of the concrete wall 14 through the cracks 82 formed in the concrete walls 14 and 78 is discharged to the spring tank 42 in the same manner as the surplus water.

After the hardening of the concrete wall 14, a noncombustible material 84 such as a gypsum board, a calcium silicate plate, or an aluminum decorative material is attached to the main surface of the second panels 22a and 22b on the chamber 12 side. According to this embodiment, the first mold frame 16 and the second mold frame 18 are connected by fitting the fitting concave portion 28 and the fitting convex portion 40. There is no problem that a step is formed on the 12th main surface.

Further, the water leaking to the vicinity of the connection portion through the crack 82 (FIGS. 2 and 3) is released by the water guide space 38 which rapidly expands in the inflow direction, and flows down the water guide space 38. Can be discharged. Therefore, it is possible to prevent water from leaking into the chamber 12 without inserting a sealing material between the fitting concave portion 28 and the fitting convex portion 40. In the above-described embodiment, the fitting concave portion 28 and the fitting convex portion 40 are formed in a straight shape that can slide in the fitting direction. For example, as shown in FIG. An enlarged portion 86 is formed at the end of the fitting portion 28, and the enlarged portion 86
Forming a receiving portion 88 for receiving the expanded portion 86 and the receiving portion 8
8 may be forcibly fitted. Also, as shown in FIG. 8, for example, a projection 90 as a first connection piece is formed on the first mold 16 and a projection 92 as a second connection piece is formed on the second mold 18. You may make it overlap.

In the connection structure 94 of the driven formwork of another embodiment shown in FIG. 9, anchor portions 96a and 96b are formed instead of the water guide space forming members 36a and 36b in the above-described embodiment, and the first formwork is formed. When the 16 and the second formwork 18 are connected, a concrete inlet 98 is formed between the anchor portions 96a and 96b. Therefore, the water guide space 38 in the above-described embodiment is a concrete storage portion 100 in which the poured concrete is stored. Then, between the fitting concave portion 28 and the fitting convex portion 40, a sealing material 102 made of, for example, an elastomer or rubber is inserted.

According to this embodiment, the concrete reservoir 1
The concrete poured in at 00 accumulates and the anchor 96
Since a and 96b are embedded in the concrete wall 14, the concrete wall 14 and the first formwork 16 and the second formwork 18 can be more firmly joined. Further, since the gap between the fitting concave portion 28 and the fitting convex portion 40 is sealed by the sealing material 102, water leaking to the surface of the concrete wall 14 through the crack 82 generated near the connection portion is prevented. Leakage can be prevented.

Also in this embodiment, for example, as shown in FIG.
The receiving portion 88 may be formed at a substantially central portion of the fitting concave portion 28, and the enlarged portion 86 and the receiving portion 88 may be forcibly fitted. In this case, a sealing material 104 made of, for example, an elastomer or rubber is formed on the inner surface of the fitting concave portion 28. The sealing material 104 is formed by simultaneous extrusion with the first mold 16. Alternatively, a separately formed one may be bonded. For example, as shown in FIG.
The sealing member 104 may be formed in the fitting recess 28 by forming the fitting protrusion 108 integrally with the sealing material 104 and fitting the fitting projection 108 into the recess 106. The shape of the sealing material 104 is not limited to a hollow cylindrical shape as shown in FIGS.
And a hollow semi-cylindrical shape as shown in FIG.

For example, as shown in FIG.
A protrusion 90 is formed on the mold 16, and a protrusion 92 is formed on the second mold 18.
May be formed, and both may be overlapped via a sealing material 110 such as a butyl double-sided tape. Further, for example, as shown in FIG. 15, a protrusion 112 may be formed at the end of the fitting protrusion 40 so as to contact the inner surface of the fitting recess 28. According to this embodiment, the fitting recess 28 can be elastically deformed by the concentrated load applied from the protrusion 112 as shown by a two-dot chain line in FIG. Can absorb the stretching.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention;

FIG. 2 is an illustrative view showing a modified example of the water guide space forming member;

FIG. 3 is a perspective view showing a use state of the embodiment of FIG. 1;

FIG. 4 is an illustrative view showing a use state of the embodiment of FIG. 1;

FIG. 5 is an illustrative view showing a connection structure at a corner;

FIG. 6 is an illustrative view showing a connection structure at a protruding corner;

FIG. 7 is an illustrative view showing another embodiment of the present invention;

FIG. 8 is an illustrative view showing another embodiment of the present invention;

FIG. 9 is an illustrative view showing another embodiment of the present invention;

FIG. 10 is an illustrative view showing another embodiment of the present invention;

11 is an illustrative view showing a modified example of the sealing material in the embodiment of FIG. 10;

FIG. 12 is an illustrative view showing a modified example of the sealing material in the embodiment of FIG. 10;

FIG. 13 is an illustrative view showing a modified example of the sealing material in the embodiment of FIG. 10;

FIG. 14 is an illustrative view showing another embodiment of the present invention;

FIG. 15 is an illustrative view showing another embodiment of the present invention;

[Explanation of symbols]

 10, 94 ... connection structure of driving formwork 12 ... chamber 14 ... concrete wall 16 ... first formwork 18 ... second formwork 26a, 26b ... heat insulating layer 28 ... fitting recess 30a, 30b ... block 32a, 32b ... Water permeable layers 36a, 36b: Water guiding space forming member 38: Water guiding space 40: Fitting convex portions 96a, 96b: Anchor portions 102, 104, 110: Seal material

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryoichi Takesako 1-5-43 Shitennoji, Tennoji-ku, Osaka Muramoto Construction Co., Ltd. Osaka Head Office (72) Inventor Hiromasa Kawamura 1-chome Shitennoji, Tennoji-ku, Osaka 5-43 Muramoto Construction Co., Ltd.Osaka Head Office (72) Inventor Junsuke Kyomen 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside Kubota Vinyl Pipe Factory (72) Inventor Masayuki Sakaguchi Ishizu-Kitamachi, Sakai City, Osaka Prefecture 64 Kubota Vinyl Pipe Plant Co., Ltd. (72) Inventor Rikuo Watanabe 64 Ishizukita-machi, Sakai City, Osaka Prefecture, Japan Kubota Vinyl Pipe Plant Co., Ltd. (72) Kazutaka Takada 64, Ishizukitamachi, Sakai City, Osaka Co., Ltd. (56) References JP-A-6-108488 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) E02D 29/00

Claims (2)

(57) [Claims] 1. A connection structure of a drive-in formwork for connecting a first formwork and a second formwork formed in this order from a concrete wall side on which a water permeable layer, a water guide layer and a heat insulation layer are cast. A first connection piece formed at one end of the heat insulating layer in the first mold; a first connection piece formed at one end of the heat insulation layer in the second mold and connected to the first connection piece; A second connecting piece, and a water guiding space formed in the water guiding layer in a position corresponding to a connecting portion between the first connecting piece and the second connecting piece, and through which water from the concrete wall passes. , Driving formwork connection structure. 2. A connection structure of a drive-in formwork for connecting a first formwork and a second formwork formed in this order from a concrete wall side on which a permeable layer, a water guide layer and a heat insulation layer are cast. A first connection piece formed at one end of the heat insulating layer in the first mold; a first connection piece formed at one end of the heat insulation layer in the second mold and connected to the first connection piece; the second connecting piece, the concrete reservoir in which the first connection piece positionally corresponding to the connecting portion between the second connection pieces accumulate concrete and Da設formed on the water guide layer being, said concrete reservoir The concrete at the entrance of the section
Anchors projecting parallel to the wall surface, and
And a sealing structure inserted between the first connection piece and the second connection piece.