JPH0696889B2 - Slab structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention regards a space from a floor slab to a ceiling as one facility space and comprehensively stores facilities such as piping, wiring, and air conditioning ducts. Regarding

[Prior Art] Conventionally, electrical and air-conditioning equipment such as piping, wiring, and air-conditioning ducts are basically stored in one centered on a floor slab and the other in the ceiling. Regarding wiring, it can be said that the method based on the floor slab is more advantageous in terms of workability, flexibility, and aesthetics. Above all, the double floor system or the floor duct is the most excellent system in terms of flexibility when considering the cost.

FIG. 6 shows a wiring system using a conventional ribbed floor plate. The figure (a) is a plan view of the floor, the figure (b) is a sectional view in the XX direction, and the figure (c) is a sectional view in the YY direction. A ribbed floor plate 2 is installed between the girders 1, 1 and wiring is installed in several recessed grooves 3 of the ribbed floor plate 2, and the girder 1,
An air-conditioning duct 5 is arranged between the ribbed floor plate 2 and the ceiling 4 between them. Besides this example, there is also known a method in which a girder is made into a double beam in the Y-Y direction and a space between the girder is provided in a wiring or piping space.

[Problems to be Solved by the Invention] In recent years, there has been an increasing demand for flexibility in future buildings such as an increase in capacity for electricity, information, and air conditioning, and a reshuffle. In addition, there is a need to enable collection and maintenance of these tenants easily and at low cost without affecting other tenants.

The conventional double floor system or floor duct is considered only from the viewpoint of wiring, and has merits and demerits such as an increase in cost, flexibility and floor height. For example, a double floor for wiring brings about an increase in floor height from an architectural point of view, and causes a disadvantage from the viewpoint of the entire building.
Also, in the wiring and air conditioning system that uses the hollow part of the void slab, the wiring and the air conditioning duct, which should originally be separate systems in the upper and lower floors, are housed in the same void system. There is a problem that it has not been done or that it is difficult to take out each equipment from the void portion, and it may take time and trouble to perform maintenance or extension.

For example, also in the example shown in FIG. 6, wiring in the XX direction is easy, but since the girder 1 and the floor plate 2 with ribs are rigidly joined, wiring in the YY direction is difficult. However, as described above, there is a problem that the cost increases if the large beam is made into a double beam.

The present invention is to solve the above-mentioned problems, in which a space from a floor slab to a ceiling is regarded as one equipment space, piping,
An object of the present invention is to provide a slab structure capable of comprehensively accommodating equipment such as wiring and air conditioning ducts.

[Means for Solving Problems] Therefore, the slab structure of the present invention is a slab structure configured by arranging a plurality of ribbed PC plates 10 and 10 between the girders 14 and 14 in the ribbed PC plate 10. Is a plane portion 10 provided in the longitudinal direction.
a, a bent portion 12 bent at a right angle to one side in the longitudinal direction of the flat surface portion 10a, a flange portion 13 bent at a right angle to the bent portion 12, and a flat surface portion
A flat portion 10b formed on the other side in the longitudinal direction of 10a and a bent portion 12
To a front side of the end of the flat portion 10b, and a rib 11 that forms the concave portion 9 with respect to the flat portion 10a.
When the flange portion 13 and the flat portion 10b of 10 are joined between the girders 14 and 14, communication spaces 15A and 15B are formed between both ends of the ribbed PC plate 10 and the girder 14, and the adjacent ribbed PC Board 10,
The ribs 11 of 10 form the recessed portions 9 and the space portions 16 alternately, and the space portions 16 and the recessed portions 9 are configured to communicate with the communication spaces 15A and 15B, respectively. The communication spaces 15A and 15B communicating with these are characterized as an air conditioning duct space and a wiring space, respectively. It should be noted that the numbers added to the above-mentioned configurations are for comparison with the drawings in order to facilitate understanding of the present invention, and the configurations of the present invention are not limited thereby.

[Operation and Effect of the Invention] In the present invention, for example, as shown in FIG.
The communication spaces 15A and 15B in the arrangement direction Y of are used for the air conditioning duct space and the wiring space, and in the direction X orthogonal to the arrangement direction of the girder 14, the space portion 16 and the concave portion 9 serve as the air conditioning duct space and the wiring space. Used.

Therefore, the space from the floor slab to the ceiling is regarded as one equipment space, and electric / air conditioning equipment such as piping, wiring, and air conditioning ducts can be integrated with the slab structure, and access to each equipment, maintenance, expansion, The work related to the change can be carried out separately and easily on each floor. Moreover, since the upper and lower floors are completely partitioned by slabs, fire and crime prevention performance can be ensured. Furthermore, the floor height can be reduced and the cost and the construction period can be shortened by using the direct ceiling together while ensuring flexibility.

Embodiments Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show one embodiment of the slab structure of the present invention, FIG. 1 is a perspective view showing the entire structure, and FIG. 2 (a) is a schematic view seen from the Z direction in FIG. FIG. 2B is a cross-sectional view taken along line Y-Y of FIG. 1A and viewed in the direction of the arrow, and FIG. 1C is a side view viewed from the Y direction of FIG.

In FIG. 1, the slab structure 1 is configured by arranging a plurality of ribbed PC plates 10, 10 between the girders 14, 14. PC with rib
The plate 10 includes a plane portion 10a provided in the longitudinal direction and a plane portion 10a.
Bent portion 12 bent at a right angle to one side in the longitudinal direction of the
A collar portion 13 bent at a right angle to 12, a flat portion 10b formed on the other side in the longitudinal direction of the flat portion 10a, and a bent portion 12 to a flat portion 10b.
The rib 11 forming the recessed portion 9 is provided to the flat surface portion 10a up to the front side of the end portion.

As shown in FIG. 2C, the rib 11 has a flat surface portion 10a.
The rib 11 is not formed on the flat portion 10b on the side opposite to the bent portion 12 and the ribbed PC plate 10, the collar portion 13 and the flat portion 10b of the PC plate 10 are provided.
When is connected between the girders 14, 14, Fig. 2 (a),
As shown in (b) and (c), rib-free communication spaces 15A and 15B are formed between the rib 13 and the flat portion 10b of the ribbed PC plate 10 and the girders 14 and 14 and adjacent to each other. With rib
The ribs 11 of the PC plates 10 and 10 alternately form the spaces 16 and the recesses 9, and the spaces 16 and the recesses 9 communicate with the communication spaces 15A and 15B, respectively. Then, the space 16 and the recess 9 and the communication spaces 15A and 15B communicating with them are used to secure an air conditioning duct space and a wiring space, respectively. That is, the communication spaces 15A and 15B are used as an air conditioning duct space and a wiring space in the arrangement direction Y of the girder 14, respectively.
In the direction X orthogonal to the arrangement direction of the space, the space portion 16 and the recessed portion 9 are used as an air conditioning duct space and a wiring space, respectively.

As shown in FIG. 1, in the upper part of the slab structure 1,
An abundant wiring space is secured, and floor panels such as GRC 1
Blocking with 7 gives you flexibility comparable to conventional OA floors. Further, flat cable wiring can be freely performed from the slab structure 1.
In the air conditioning duct space formed in the ceiling of the slab structure 1, the lighting equipment 18 is integrally mounted, and sprinkler equipment, a speaker, a smoke detector, etc. are mounted as needed. By using a PC board as the finishing base for the ceiling surface, cost can be reduced, and by not using a double ceiling, the floor height can be reduced. In addition, since the upper and lower floors are completely partitioned by slabs, fire and crime prevention performance is secured, and the work for accessing, maintaining, expanding, and changing the equipment system on the upper and lower floors is performed separately on each floor. And it can be done easily.

Next, each facility will be described in detail. Fig. 3 shows the wiring equipment. The wiring of the power supply (floor outlet) 20, the information system 21, and the telephone 22 in the electrical equipment is the communication space in the direction of the girder 14.
It is possible to take out from any position of the GRC panel 17 placed on the concave portion 9 by being distributed to the concave portions 9 in the respective rib directions through 15B. In addition, as shown in FIG. 3B, the coaxial cable 24 pulls up to the recessed portion 9 of each rib, and from there, the flat cable 26 is connected via the connection box 25, so that it can be easily placed under the tile carpet 27. Wiring is possible at low cost. In case of additional wiring, etc.,
The GRC panel 17 can be simply removed to perform relocation work, and since the upper and lower floors are partitioned by PC boards, the construction can be done without affecting the tenants on the lower floors.

Fig. 4 shows the air conditioning equipment. The air supply main duct 30 penetrates the corridor side girder 31 and is guided to the communication space 15A in the direction of the girder 14 below the PC floor plate, and from there the variable air flow controller 33
The air is supplied from the blowing nozzle that is guided to the space portion 16 in the direction of each rib via the, and is integrated with the lighting fixture mounted on the ceiling. Retensioning is performed by an exhaust duct that penetrates the corridor-side girder 31 by a chamber system that uses the space 16 in the rib direction from the exhaust port of the lighting fixture unit.

FIG. 5 shows the above-described lighting equipment, which is incorporated in the space 16 in the rib direction below the PC floor plate so as to be integrated with air conditioning and other equipment. By doing so, even during each repair work, by removing the lighting fixture, it becomes a ceiling inspection port, and maintenance can be easily performed.

[Brief description of drawings]

1 and 2 show one embodiment of the slab structure of the present invention, and FIG. 1 is a perspective view showing the overall structure, and FIG. 2 (a).
Is a schematic plan view seen from the Z direction in FIG. 1, FIG. (B) is a sectional view taken along the line YY of FIG. (A) and seen in the direction of the arrow, and FIG. FIG. 3 is a side view seen from the Y direction in the figure, FIG. 3 is a diagram for explaining a wiring system according to the present invention, FIG. 4 is a diagram for explaining an air conditioning system according to the present invention, and FIG. FIG. 6 is a diagram for explaining an illumination system relating to the above, and FIG. 6 is a diagram for explaining a conventional wiring system. 1 ... slab structure, 9 ... recessed part, 10 ... ribbed PC plate,
10a: flat part, 10b: flat part, 11: rib, 12: bent part, 13: collar part, 14: girder, 15A, 15B ... communication space, 16 ... space part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenkichi Nomura 2-16-1, Kyobashi, Chuo-ku, Tokyo Within Shimizu Construction Co., Ltd. (72) Inventor Teruo Tanaka 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Masayuki Takeuchi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shiro Maeda 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Ken Incorporated (72) Inventor Takashi Adachi 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Incorporated (72) Inventor Masayasu Taga 2-1-1, Kyobashi, Chuo-ku, Tokyo Constructed Shimizu (72) Inventor Wataru Kato 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shiro Mishima 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Masahiro Yoshimura, 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yuichiro Ogawa 2--16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction (56) ) References JP-A-60-115741 (JP, A) Actually developed 62-93632 (JP, U)

Claims (1)

[Claims] 1. A slab structure configured by arranging a plurality of ribbed PC plates between girders, wherein the ribbed PC plate is provided with a plane portion provided in the longitudinal direction and one side in the longitudinal direction of the plane portion. A bent portion bent at a right angle, a collar portion bent at a right angle to the bent portion, a flat portion formed on the other side in the longitudinal direction of the flat portion, and a flat portion from the bent portion. PC with ribs is provided when ribs and flat parts of a plurality of ribbed PC plates are joined between girders, with ribs that form concave portions to the flat surface up to the end front side.
A communication space is formed between both ends of the plate and the girder, and the recesses and spaces are alternately formed by the ribs of the adjacent PC plate with ribs, and the space and the recess are respectively connected to the communication space. The slab structure characterized in that the space portion, the recessed portion, and the communication spaces communicating with these are the air conditioning duct space and the wiring space, respectively.