JPH08270129A - Placing form for floor and its usage - Google Patents

Abstract

PURPOSE: To improve productivity by inserting reinforcing bars into hollow portion disposed in longitudinal direction in a cement extrusion forming place and then filling filler material. CONSTITUTION: A cement extrusion forming plate 10 having rectangular, plural hollow portions 11 in succession in longitudinal direction, is formed. Reinforcing bars 12 are inserted in part or all of the plural hollow portions. Filler material 13, such as cement mortar, is filled in the hollow portions inserted with reinforcing bars 12. A flooring, placing form 1, having ant legs for increasing bond force of concrete 2, is formed on upper surface. The flooring, placing plate 1 is then supported with beams. Lower end bar, distributing bars 31 and upper end bar, distributing bars 32, and upper end bar main bars 33 are disposed on top of the form 1, and then concrete 2 is placed. Accordingly, supporting process becomes unnecessary, so that floor slab placement in enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor driving form used for a floor slab such as a reinforced concrete building, a steel concrete building or a steel building, and a method for constructing a floor slab using the same. is there.

[0002]

2. Description of the Related Art Conventionally, as a construction method for floor slabs such as reinforced concrete buildings and steel-framed concrete buildings, support works have been erected at predetermined intervals on the floor below which the floor slabs are constructed. A floor slab formwork is supported on the floor slab while supporting it, and a floor slab rebar consisting of a lower end main reinforcement bar, a lower end reinforcement bar, an upper end reinforcement bar and an upper end reinforcement bar on the floor slab formwork. The method of assembling the concrete and then placing concrete on the floor slab formwork has been generally adopted.

[0003]

By the way, the conventional construction method of the floor slab described above has the following drawbacks. (1) The support work that supports the floor slab formwork must be installed until the concrete placed on the floor slab formwork reaches the specified strength, and transportation and assembly of various equipment at the construction site is required. It will be a hindrance to the introduction of machinery to perform, and will obstruct mechanization at the construction site. (2) It takes time and effort to erect the supporting work in the previous process of placing concrete and to arrange the floor slab formwork, and to support the supporting process and remove the floor slab formwork in the subsequent process.

The present invention solves the above-mentioned drawbacks of the conventional floor slab construction method and promotes mechanization at the construction site by eliminating the need for supporting work, and improves workability and productivity in the floor slab construction method. It is an object of the present invention to provide a floor-driving formwork capable of improving the workability and a construction method of a floor slab using the same.

[0005]

In order to achieve the above object, the floor casting formwork of the present invention is characterized in that a reinforcing bar is arranged inside a cement extrusion plate.

In this case, the reinforcing bars are arranged at the same time as the extrusion molding of the cement extrusion molding plate, and at the same time when the cement extrusion molding plate is extruded, a hollow portion which is continuous in the longitudinal direction is formed, and the reinforcing bars are inserted into the hollow portions. Then, it can be arranged by filling the hollow portion through which the reinforcing bar is inserted with a filler. Further, prestress can be introduced into the reinforcing bars arranged inside the cement extrusion plate.

Further, the floor slab construction method of the present invention uses the floor driving formwork and includes beams (in the present specification, "beam formwork") only in the vicinity of both ends of the floor driving formwork. ), The upper end streak is arranged on the floor driving formwork, and then concrete is placed.
In this case, the upper end muscles may be composed of the upper end muscle main muscles and the upper end muscle force distribution muscles, and the lower end muscle force distribution muscles may be arranged as necessary.

[0008]

[Operation] By using a floor driving form made of a cement extrusion plate having reinforcing bars inside, when installing the form, it is sufficient to support only the vicinity of both ends of the floor driving form with beams. Since the supporting work for supporting the formwork can be omitted, a large space can be secured at the construction site, and mechanization at the construction site can be promoted. In addition, this combined with the fact that the formwork is a driven formwork, was essential in the conventional construction method of floor slabs, which was an indispensable stand-up and post-installation of the supporting work in the previous process of concrete pouring. It is possible to omit the process of supporting work and removing the floor slab formwork. Further, the reinforcing bars arranged inside the cement extruded plate can be the bottom reinforcing bars of the floor slab, which simplifies the assembly of the floor slab reinforcing bars and improves the installation accuracy of the floor slab reinforcing bars. . Also, by manufacturing the base of the floor driving formwork by cement extrusion molding, a large amount of products can be produced.
Moreover, since it can be manufactured at a low cost, and the manufactured product has high dimensional accuracy, installation work by a machine is facilitated and installation accuracy is improved.

[0009]

Embodiments A floor driving form and a floor slab construction method using the same according to the present invention will be described below with reference to the illustrated embodiments.

The floor casting mold 1 uses a cement extrusion molding plate 10 in which a plurality of hollow portions 11 having a rectangular or circular cross section continuous in the longitudinal direction are formed on a base, and a part of the plurality of hollow portions 11 is used. Or, insert the rebar 12 through the whole and rebar 1
The hollow portion 11 through which 2 is inserted is filled with a filler 13 such as cement mortar.

In this embodiment, the floor driving formwork 1 is used.
Is formed with fitting portions 14a and 14b for adjoining floor driving formwork on its longitudinal side surface, and its upper surface is coupled with concrete 2 to be placed on the floor driving formwork 1. The dovetails 15 are formed to increase power.

In this case, the prestress can be introduced into the reinforcing bar 12 inserted into the hollow portion 11 of the cement extrusion molding plate 10. However, in the case of introducing the prestress, the reinforcing bar 12 is added in order to enhance its effect. Is placed under the hollow portion 11 of the cement extruded plate 10 and is filled with the filler 13, or the hollow portion 11 of the cement extruded plate 10 is formed into two layers, and the reinforcing bar 12 is placed at the bottom. It can also be configured to be inserted into one hollow portion. The prestress may be introduced either before or after the hollow material is filled with the filler 13.

Next, a method of constructing a floor slab using the above floor driving form will be described. The floor driving formwork 1 is held by an appropriate construction machine, and only the vicinity of both ends of the floor driving formwork 1 is placed on the beam or the beam formwork 12 (hereinafter simply referred to as “beam”), As a result, the floor driving formwork 1 is supported by the beams 12, the lower end muscle distributing muscles 31, the upper end muscle distributing muscles 32, and the upper end muscle main bars 33 are arranged on the floor driving formwork 1, and then the concrete 2 is To set.

In this case, since the supporting work for supporting the floor driving form 1 is basically not provided, the floor driving form 1 has at least its own weight, and the floor slab rebars 31, 3 are provided.
It is necessary to design so as to have a strength capable of supporting the weight of 2, 3 and the cast concrete 2 and the work load, but this floor driving formwork 1 can easily fulfill this requirement. Is.

[0015]

According to the present invention, since the supporting work for supporting the formwork can be omitted, a large space can be secured at the construction site, and mechanization at the construction site can be promoted. . In addition, this combined with the fact that the formwork is a driven formwork, was essential in the conventional construction method of floor slabs, which was an indispensable stand-up and post-installation of the supporting work in the previous process of concrete pouring. The steps of supporting work and removing the floor slab formwork can be omitted, and workability and productivity in the floor slab construction method can be improved. Further, the floor driving form of the present invention, the reinforcing bar disposed inside the cement extrusion plate can be the lower end main reinforcement of the floor slab, and it is possible to simplify the assembly of the floor slab reinforcing bar, The installation accuracy of the floor slab reinforcement can also be improved. Further, even if the floor driving formwork is damaged due to an unexpected accident or the like, the floor driving formwork does not drop off or fall, and the safety can be improved. In addition, by manufacturing the base of the floor driving form by cement extrusion molding, it is possible to manufacture a large amount of products at low cost. Furthermore, since the manufactured products have high dimensional accuracy, they can be installed by machines. The work becomes easy and the installation accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a floor slab structure constructed using the floor driving formwork of the present invention.

FIG. 2 is an overall perspective view in which a part of a floor slab structure constructed using the floor driving formwork of the present invention is shown in section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor-casting formwork 10 Cement extrusion plate 11 Hollow part 12 Reinforcing bar 13 Filler 14a Fitting part 14b Fitting part 15 Dovetail 2 Concrete 31 Bottom-end muscle force-stripping 32 Upper-end muscle force-stripping muscle 33 Upper-end stiffener main beam 4 Beam

Front page continuation (71) Applicant 000140292 Okumura Gumi Co., Ltd. 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka (71) Applicant 000001317 Kumagaya Gumi Co., Ltd. 2-6-8 Chuo, Fukui-shi, Fukui Prefecture (71) ) Applicant 390036515 Konoikegumi Co., Ltd. Osaka City, Osaka City, Konohana Ward, 4-3-55 (71) Applicant 000166627 Goyo Construction Co., Ltd. Bunkyo-ku, Tokyo, Koraku 2-8 (71) Applicant 000172813 Sato Industry 11-11 Sakuragicho, Toyama City, Toyama Prefecture (71) Applicant 000002299 Shimizu Construction Co., Ltd. 1-3-2 Shibaura, Minato-ku, Tokyo (71) Applicant 000183325 Sumitomo Construction Co., Ltd. 13 Arakicho, Shinjuku-ku, Tokyo Address No. 4 (71) Applicant 000148346 Zentakagumi Co., Ltd. 2-2-11 Nishinishimachi, Nishi-ku, Osaka-shi, Osaka (71) Applicant 000206211 Taisei Corporation 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo (71) Applicant 000207621 Dainippon Civil Engineering Co., Ltd. 1-6-8 Usanan, Gifu City, Gifu Prefecture (71) Applicant 000207780 Otoyo Construction Co., Ltd. 1-24-4 Shinkawa, Chuo-ku, Tokyo (71) Applicant 000216025 Iron Construction Co., Ltd. 2-3-5 Misaki-cho, Chiyoda-ku, Tokyo (71) Applicant 000166432 Toda Construction Co., Ltd. 1-7-1, Kyobashi, Chuo-ku, Tokyo (71) Applicant 000219875 Tokyu Construction Co., Ltd. 1-16-14, Shibuya, Shibuya-ku, Tokyo (71) Applicant 000222668 4 Koraibashi, Chuo-ku, Osaka-shi, Osaka 1-1-1 (71) Applicant 000235543 Tobishima Construction Co., Ltd. 2-3 Sanbancho, Chiyoda-ku, Tokyo (71) Applicant 000231198 Japan National Land Development Co., Ltd. 4--9-9 Akasaka, Minato-ku, Tokyo (71) Application Person 000140982 2-5-8 Kitaoaoyama, Minato-ku, Tokyo (71) Applicant 000150615 Haseko Corporation, 32-32-1, Shiba, Minato-ku, Tokyo (71) Applicant 000201478 Maeda Construction Industry Co., Ltd. Tokyo 2-10-26, Fujimi, Chiyoda-ku, Tokyo (72) Akira Baba, inventor Raw No. 1 Tatehara, Tsukuba City, Ibaraki Prefecture, Ministry of Construction, Research Institute of Architecture (72) Inventor, Toru Yamamoto No. 1, Hara, Tsukuba City, Ibaraki Prefecture, Ministry of Construction (72) Takaaki Okubo, No. 1, Hara, Tsukuba City, Ibaraki Prefecture Building Research Institute (72) Inventor Masahiro Ogata 3-14-2 Namiki, Tsukuba-shi, Ibaraki Suruga Heights 201 (72) Inventor Toshiro Shirosho 2-10-2 Otowa, Bunkyo-ku, Tokyo Foundation Construction technology (72) Inventor Mitsuo Koyanagi 4-33 Kitahama East, Chuo-ku, Osaka City, Osaka Prefecture Obayashi Corporation (72) Inventor Takashi Otsuka 2-6-8, Chuo, Fukui City, Fukui Prefecture Kumagaya Corporation ( 72) Inventor Hideki Ueda 4 Sumitomo Construction Co., Ltd. 13-13 Araki-cho, Shinjuku-ku, Tokyo (72) Inventor Seiken Kumada 1-6-8 Usanan, Gifu City, Gifu Dainihon Engineering Works Co., Ltd. (72 ) Inventor Toshinoki Wachi 2-3-5 Misaki-cho, Chiyoda-ku, Tokyo Within Tetsuken Construction Co., Ltd. (72) Inventor Yoshinari Hirakawa 4-1-1 Koraibashi, Chuo-ku, Osaka City, Osaka Prefecture Toyo Construction Co., Ltd. (72) Inventor Kenji Ohara 2 Misaki-cho, Chiyoda-ku, Tokyo Inside Tobishima Construction Co., Ltd. (72) Inventor Ryozo Koga Tokyo 4-9-9 Akasaka, Minato-ku, Japan Within Japan Land Development Co., Ltd. (72) Inventor Masaki Kumagai Tokyo 32-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation (72) Inventor Hiroshi Hagiwara Tokyo Maeda Construction Industry Co., Ltd. 2-1026 Fujimi, Chiyoda-ku

Claims (4)

[Claims] 1. A floor driving formwork characterized in that a reinforcing bar is disposed inside a cement extrusion plate. 2. A cement extruded plate having a hollow portion continuous in the longitudinal direction, wherein a reinforcing bar is inserted into the hollow part and the hollow part through which the reinforcing bar is inserted is filled with a filler. The floor driving form described in 1. 3. The floor driving formwork according to claim 1, wherein prestress is introduced into the reinforcing bar. 4. The floor driving form according to claim 1, 2 or 3 is supported by beams only in the vicinity of both ends thereof, the upper end streak is arranged on the floor driving form, and then concrete is poured. The construction method of the floor slab characterized by that.