JPH08218629A - Coupler and coupling structure for form material - Google Patents

Abstract

PURPOSE: To prevent adjacent form members from deviating with each other at coupled positions so as to eliminate mending works therefor. CONSTITUTION: Reinforcement 9 is surrounded by a lower form member 2 made a concrete molding, an upper form member 3 and a normal form member 7. U-like cross-sectional shape couplers 14 having holding pieces upstanding on opposite sides of a base are fitted on a bead 12 formed at the inside surface of the upper form member 3 and an end edge 13 of the lower form member 12, and are located at positions where the upper and lower form members 2, 3 are horizontally coupled. Concrete K is placed in a space defined by a permanent form member 1 and the normal form member 7 so as to form a parapet. The space between front ends of the holding pieces of each coupler 14 is smaller than the thicknesses of the bead 11 and the end edge 13, and the space between the rear ends thereof is larger the thicknesses of the bead 12 and the end edge 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete structure (RC
Structure, SRC structure, etc.) and a connecting structure and a connecting structure of a frame material.

[0002]

2. Description of the Related Art Conventionally, when constructing a concrete structure, after arranging a steel frame or a reinforcing bar, the surroundings of the steel frame and the reinforcing bar are surrounded by a wooden formwork, and then the place surrounded by this formwork. Fresh concrete was poured into and the mold was removed after the concrete had hardened. By the way, this type of wooden form material is often thrown away, and its use is being refrained from the purpose of environmental protection, etc., and in recent years, synthetic resin or metal has been used instead of this wooden form material. , Or a permanent mold material such as cement, that is, a mold material that is a part of a concrete structure is being used.

[0003]

However, in these mold members, a step is generated at the connecting portion due to the warp of each mold member, the deviation of the base, and the like, and this step portion is misaligned. Then, it was necessary to carry out the chiseling work of this misaligned part. Here, in order to eliminate the above-mentioned misalignment, a mold material having concave-convex tongue structures fitted to each other at the ends is used. In this case, the size of the structure to be constructed If the formwork material is cut in accordance with the above conditions, the ends of the formwork material cannot be joined by the tongue structure, and there is a problem that a misaligned portion is generated.

The present invention has been made in view of the above circumstances, and provides a connecting member and a connecting structure for forming frame members, which can very easily position and connect adjacent forming members. It is an object.

[0005]

In order to achieve the above-mentioned object, the connecting member of the formwork material according to claim 1 is arranged so as to surround the outer peripheral side of the concrete structure to be constructed, and concrete is provided inside. A connecting tool that is fitted to the end edges of adjacent formwork members of the formwork members to be straddled over these formwork members, and has a U-shaped cross section with holding pieces on both sides. The distance between the holding pieces is narrower on the front end side than the thickness dimension of the end edge, and is wider on the rear end side than the thickness dimension of the end edge. According to a second aspect of the present invention, there is provided a connecting member for a form material according to the first aspect, wherein the holding member of the connecting member has a locking portion protruding inwardly at a front end portion thereof. It is characterized by becoming.

According to a third aspect of the present invention, there is provided a formwork material connector according to the first aspect, wherein a plurality of locking members are provided on an inner surface of the holding piece of the connection member in a longitudinal direction. It is characterized in that a ridge is formed. According to a fourth aspect of the present invention, there is provided the formwork material connector according to the first aspect, wherein the holding piece of the connection member is slightly outwardly bent in the vicinity of its tip. Is characterized by. According to a fifth aspect of the present invention, there is provided the formwork material coupling tool according to the first aspect, wherein the holding piece of the connection member is bent in a zigzag shape from the front end side toward the rear end side. It is characterized by becoming.

According to a sixth aspect of the present invention, there is provided a connecting structure for formwork material, which is arranged so as to surround an outer peripheral side of a concrete structure to be constructed and concrete is placed therein. A connecting tool formed in a U-shaped cross-section having holding pieces on both sides is fitted to the end edges of the adjacent formwork materials, and the holding piece of the connecting tool is fitted. Is smaller than the thickness dimension of the edge on the front end side and wider than the thickness dimension of the edge on the rear end side. The connecting structure of formwork material according to claim 7 is the connecting structure of formwork material according to claim 6, wherein a protrusion having the same thickness dimension as the edge is formed in the longitudinal direction on the formwork material. It is characterized in that the connecting tool is fitted over the ridges of the adjacent formwork materials.

[0008]

According to the formwork material connecting tool of the first aspect, when the formwork materials are fitted over the end edges of the adjacent formwork materials, the tip side is narrower than the thickness dimension of the end edges of the formwork material. , The rear end side is sandwiched by the holding pieces wider than the thickness of the edge, and the mold members are held in a state of being positioned, so that the mold members connected to each other are prevented from being displaced from each other. According to the formwork material connecting tool of the second aspect, the engaging portion formed on the holding piece engages with the edge or the ridge of the formwork material, and the fitting force is improved. According to the third aspect of the present invention, the locking projection formed on the holding piece engages with the edge or the projection of the form material to improve the fitting force.

According to the connector of the formwork material of claim 4,
This facilitates the fitting of the frame material to the edge or the ridge. According to the connecting tool of the formwork material of claim 5, the connecting member is securely fitted to the edge or the protrusion of the formwork material by the zigzag-shaped holding pieces. According to the connecting structure of the form material of claim 6, a connecting member having a holding piece whose front end side is narrower than the thickness dimension of the end edge of the form material and whose rear end side is wider than the thickness dimension of the end edge is provided. By fitting over the end edges of the adjacent formwork materials, the formwork materials are held in a positioned state, and the formwork materials connected to each other are prevented from shifting. According to the connecting structure of the formwork material according to claim 7, the formwork material is held in the positioned state by the connecting member fitted to the protrusion formed on the inner surface side at the connecting position, and is connected to each other. It is possible to prevent the formed frame materials from being displaced from each other.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the connecting member and connecting structure of the formwork material of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1
Is a permanent formwork material (formwork material) used when constructing a parapet, and this permanent formwork material 1 includes a lower formwork material 2, an upper formwork material 3, and these lower formwork material 2 and an upper part. It is composed of an intermediate form material 4 arranged between the form material 3. The lower mold member 2, the upper mold member 3, and the intermediate mold member 4 are each formed of a concrete molded body and are connected to each other by a connecting member 5 having an H-shaped cross section.

In this way, in the permanent formwork material 1 connected and installed by the connection material 5, the normal formwork material 7 provided on the opposite side is surrounded by the separator 8 around the bar arrangement 9. , The concrete K is placed between the permanent form material 1 and the form material 7, and after the concrete K is hardened, the form material 7 is removed to remove the permanent form material 1
The concrete structure, here the parapet 11, is constructed by the and the concrete K.

Further, on the inner surface side of the upper mold material 3, there are formed ridges 12 extending in the longitudinal direction.
2 and 3, a connecting tool 14 is fitted to the end edge 13 of the lower mold material 2 at a connecting position in the horizontal direction. The connecting tool 14 is formed by extruding a metal material such as aluminum, for example, as shown in FIGS.
As shown in FIG.
The holding pieces 16 are formed on both sides of the holding pieces 16, and the distance between the holding pieces 16 is gradually increased from the front end side toward the rear end side.

Here, the distance L1 between the holding pieces 16 of the connecting tool 14 is such that the dimension L1 on the tip end side is larger than the width dimension of the protrusion 12 of the upper mold member 3 and the end edge 13 of the lower mold member 2. And the dimension L2 on the rear end side is the ridge 12 of the upper formwork material 3.
Also, it is formed wider than the width dimension of the end edge 13 of the lower mold material 2. That is, when the connecting pieces 14 are fitted to the ridges 12 of the upper mold material 3 or the end edges 13 of the lower mold material 2 while widening the intervals of the holding pieces 16 of the connecting tools 14, The holding piece 16 is restored, and the ridge 12 of the upper mold material 3 is restored.
Also, a connecting tool 14 is attached in a state of sandwiching the end edge 13 of the lower mold material 2 and the projecting ridge 12 and the end edge 13 are reliably connected by the connecting tool 14.

Next, the procedure for constructing a concrete structure using the upper form material 2, the lower form material 3 and the intermediate form material 4 will be described.
The case of constructing the parapet 11 will be described as an example.
First, the reinforcing bar 9 is arranged at the top of the building, and the lower form member 2 and the upper form member 3, so as to cover the periphery of the reinforcing bar 9,
The permanent form material 1 is assembled by connecting the intermediate form material 4 with the connecting material 5, and the permanent form material 1 and the normal form material 7 are connected with the separator 8. Here, at the connecting portion of the lower mold material 2 and the upper mold material 3 which constitute the permanent mold material 1 in the horizontal direction, the edge 13 of the lower mold material 2 and the ridge of the upper mold material 3 are formed. The coupling tool 14 is fitted to 12.

With this arrangement, the connecting tool 14 maintains the lower mold member 2 and the upper mold member 3 in a surely positioned state. In this state, concrete K is placed between the permanent frame material 1 and the frame material 7, and after the concrete K is cured and cured, the frame material 7 is removed. By doing so, the parapet 11 is constructed by the permanent form material 1 and the concrete K.

As described above, according to the connecting tool and the connecting structure of the formwork material of this embodiment, the ridge 1 of the upper formwork material 3 is formed.
2 or the end 13 of the lower mold member 2 is fitted with the connector 14, so that when the concrete structure is constructed, the upper mold member 3 is connected by the connector 14.
Also, the adjacent lower mold members 2 can be reliably positioned with respect to each other. Therefore, it is possible to reliably prevent the upper mold member 3 and the lower mold member 2 from being displaced in the surface direction, and it is possible to omit the repair work due to the displacement. As a result, it is possible to eliminate the labor required for the repair work of this deviation and to shorten the construction work.

6 to 11 show a connector 14 having another shape. Specifically, the connecting tool 14 shown in FIG. 6 is one in which a locking portion 17 protruding inward is formed at the tip of a holding piece 16 that constitutes the connecting tool 14. According to the above, the ridge 1 of the upper form material 3
2 or when fitted to the edge 13 of the lower mold material 2,
When the locking portions 17 are locked, the fitting force of the connecting tool 14 is improved, and a more reliable connected state can be maintained. In addition, the connector 14 shown in FIG.
A plurality of locking projections 18 are formed on the inner surface side of the holding piece 16 that constitutes the connecting tool 14. Further, as shown in FIG. 8, the locking protrusion 18 formed on the holding piece 16 is used.
Are inclined toward the rear end side of the holding piece 16, respectively,
The locking force is further improved.

Further, the one shown in FIG. 9 is one in which the vicinity of the tip of the holding piece 16 is bent slightly outward, and thus the tip of the holding piece 16 is bent slightly outward. By placing this connecting tool 14, the protrusion 1 of the upper mold material 3
It is possible to facilitate the installation work for fitting it to the end edge 13 of the lower mold member 2 or the lower mold member 2. Also, FIG. 10 and FIG.
In FIG. 1, the holding pieces 16 are bent in a zigzag manner, and even with these connecting tools 14, the fitting force can be improved.

In the above embodiment, an example in which the permanent formwork 1 used at the construction site of the parapet 11 is connected by the connecting tool 14 has been described, but the connecting tool 14 is a concrete structure other than the parapet 11. Of course, it can also be used as a formwork material or a permanent formwork material used in the construction part of the above.

[0020]

As described above, the following effects can be obtained according to the connecting tool and the connecting structure of the frame material of the present invention. According to the connecting tool of the formwork material according to claim 1, since the front end side has a holding piece that is narrower than the thickness dimension of the end edge of the formwork material and the rear end side is wider than the thickness dimension of the end edge, By fitting over the edges of the matching form materials,
It is extremely easy to hold the mold members in a state of being positioned with each other, and it is possible to prevent the mold members connected to each other from being displaced from each other. As a result, it is possible to prevent the occurrence of misalignment due to the misalignment of the mold materials, and it is possible to omit the repair work for repairing the misalignment. Therefore, the labor required for the repair work can be eliminated and the construction work can be shortened.
According to the connecting tool of the formwork material according to the second aspect, the engaging portion formed on the holding piece can further improve the fitting force of the connecting tool to the edge or the protrusion of the formwork material.

According to the third aspect of the present invention, there is provided a connecting member for formwork materials.
The engaging projection formed on the holding piece can further improve the fitting force of the connecting tool to the edge of the form material or the projection. According to the connecting tool of the formwork material according to the fourth aspect, it is possible to facilitate the fitting work to the edge or the ridge of the formwork material. According to the connecting tool of the formwork of claim 5, the fitting force of the connecting tool to the edge of the formwork or the ridge can be further improved by the zigzag-shaped holding pieces.

According to a sixth aspect of the present invention, there is provided a holding member having a front end side narrower than a thickness dimension of an edge of the form frame material and a rear end side wider than a thickness dimension of the edge. By fitting the connecting tool across the end edges of the adjacent formwork materials, it is possible to hold the formwork materials in a positioned state extremely easily, and to connect the formwork materials to each other. The shift can be prevented. As a result, it is possible to prevent the occurrence of misalignment due to the misalignment of the mold materials, and it is possible to omit the repair work for repairing the misalignment. Therefore, the labor required for the repair work can be eliminated and the construction work can be shortened. According to the connecting structure of the form material according to claim 7, by fitting the connecting tool to the protrusion formed in the form material in the longitudinal direction at the connecting position of the form material,
It is extremely easy to hold the mold members in a state of being positioned with each other, and it is possible to prevent the mold members connected to each other from being displaced from each other. As a result, it is possible to prevent the occurrence of misalignment due to the misalignment of the mold materials, and it is possible to omit the repair work for repairing the misalignment. Therefore, the labor required for the repair work can be eliminated and the construction work can be shortened.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a parapet after concrete pouring, illustrating a connecting tool and a connecting structure of a mold material according to an embodiment of the present invention.

FIG. 2 is a perspective view of a connecting portion of an upper mold member for explaining a connecting member and a connecting structure of the mold member according to the embodiment of the present invention.

FIG. 3 is a perspective view of a connecting portion of a lower frame member for explaining the connecting member and the connecting structure of the frame member of the embodiment of the present invention.

FIG. 4 is a perspective view of a connecting tool for explaining the shape of the connecting tool used in the connecting structure of the mold material of the embodiment of the present invention.

FIG. 5 is a front view of a connecting tool for explaining the shape of the connecting tool used in the connecting structure of the mold material of the embodiment of the present invention.

FIG. 6 is a front view of a connector for explaining another shape of the connector used in the structure connecting structure of the embodiment of the present invention.

FIG. 7 is a front view of a connector for explaining another shape of the connector used in the frame member connecting structure according to the embodiment of the present invention.

FIG. 8 is a front view of a connector for explaining another shape of the connector used in the frame member connecting structure according to the embodiment of the present invention.

FIG. 9 is a front view of a connector for explaining another shape of the connector used in the mold frame member connecting structure according to the embodiment of the present invention.

FIG. 10 is a front view of a connecting tool for explaining a connecting tool having another shape used in the connecting structure of the mold members according to the embodiment of the present invention.

FIG. 11 is a front view of a connecting tool for explaining a connecting tool of another shape used in the connecting structure of the mold material of the embodiment of the present invention.

[Explanation of symbols]

 1 Permanent Formwork Material (Formwork Material) 2 Lower Formwork Material (Formwork Material) 3 Upper Formwork Material (Formwork Material) 11 Concrete Structure 12 Projection 13 End Edge 14 Coupling Tool 16 Holding Piece 17 Locking Part 18 Locking ridge K concrete

Front page continuation (72) Inventor Tetsuo Ishiyama 5-1 Okawa-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Showa Denko K.K.

Claims (7)

[Claims] Claims: 1. A concrete structure to be constructed is arranged so as to surround the outer peripheral side of the concrete structure, and concrete is placed therein. Is a connector to be fitted together, which is formed in a U-shaped cross-section having holding pieces on both sides, and the distance between the holding pieces is narrower on the front end side than the thickness of the edge, The connecting member of the form material is characterized in that it is made wider than the thickness dimension of the edge on the side. 2. The connecting member of the formwork material according to claim 1, wherein the holding piece of the connecting member is formed with a locking portion projecting inward at a tip end portion thereof. 3. The mold material according to claim 1, wherein the holding piece of the connecting member is formed with a plurality of locking projections on the inner surface side in the longitudinal direction. Connector. 4. The connecting tool for a formwork material according to claim 1, wherein the holding piece of the connecting member is slightly outwardly bent in the vicinity of its tip. 5. The connecting tool for the formwork material according to claim 1, wherein the holding piece of the connecting member is bent in a zigzag shape from the front end side toward the rear end side. 6. A connecting structure of formwork materials, which is arranged so as to surround an outer peripheral side of a concrete structure to be built and in which concrete is placed, wherein edge parts of adjacent formwork materials are connected to each other. , A connecting tool formed in a U-shaped cross-section having holding pieces on both sides is fitted over these mold members, and the distance between the holding pieces of the connecting tool is
A connecting structure for formwork material, wherein the front end side is narrower than the end edge thickness dimension, and the rear end side is wider than the end edge thickness dimension. 7. The form material is formed with a protrusion having the same thickness dimension as the end edge in the longitudinal direction, and the connector is provided on the protrusion between adjacent form members, The formwork connection structure according to claim 6, wherein the formwork members are fitted over each other.