JPH0610434A - Unit slab and method for constructing it - Google Patents

Abstract

PURPOSE:To enhance the construction workability for a floor slab. CONSTITUTION:A unit slab 1 comprises deck plates 5 supported to the beams 4 of a building structure 2 and precast concrete panels 6 provided to the deck plates 5, the deck plates 5 and the precast concrete panels 6 being integrated together. Since the unit slab 1 can be constructed in the building structure 2 simply by supporting the deck plates 5 to the beams 4 of the building structure 2, the need for the work of placing concrete on site is eliminated and the construction workability for the unit slab 1 can then be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit slab and a construction method thereof, and more particularly to a unit slab suitable for a floor slab of a building structure and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, a floor slab for a building structure is composed of a deck plate supported by a plurality of beams of the building structure and concrete cast on the deck plate. The floor slab deck plate includes a water pipe,
Pipes such as air-conditioning ducts and sprinkler pipes are suspended and electric wires are laid.

In such a floor slab construction method, a beam is bridged over a plurality of columns, a deck plate is supported by these beams, concrete is placed on the upper surface of the deck plate, and the floor slab is constructed. After that, the piping was suspended on the deck plate and the electric wires were directly arranged on the deck plate.

[0004]

However, in the construction of the floor slab, since the concrete is placed on the deck plate at the site, the construction work of the floor slab is complicated and the floor slab construction takes a long time. Was needed. After installing this floor slab, piping and electric wires are attached to the floor slab on site, so the work of arranging these pipes and the work of arranging the electric wires are complicated, and the work of arranging the pipe and the electric wire It took a long time to build with.

As a result, the number of work steps on site increases,
The cost required for these operations becomes large, and the quality of the floor slab cannot be stabilized. Moreover, since concrete is poured at the site, when placing a floor slab of a high-rise building structure, the concrete placing work is complicated.

The present invention effectively solves the above-mentioned problems, and an object of the present invention is to provide a unit slab and a method for constructing the unit slab, which improves the workability of constructing the floor slab and shortens the construction period of the floor slab. .

[0007]

The unit slab according to claim 1 is a unit slab supported by the beam, in which a beam is bridged over a pillar of a building structure, and the deck plate is supported by the beam. And a precast concrete slab provided on the deck plate.

A unit slab according to a second aspect of the present invention is the unit slab according to the first aspect, wherein the deck plate is provided with piping.

A unit slab according to a third aspect of the present invention is the unit slab according to the first aspect, wherein the deck plate is provided with a cellular duct, and an electric wire is arranged in the cellular duct. It is a thing.

The unit slab according to claim 4 is the unit slab according to claim 3, wherein the deck plate is provided with a bushing for connecting the cellular ducts of the respective deck plates. Is.

A construction method of the unit slab according to claim 5 is the construction method of the unit slab according to claim 1, wherein a precast concrete plate is integrally provided on a deck plate in advance, and the deck plate is attached to the beam of the building structure. It is characterized by supporting. .

A method for constructing a unit slab according to claim 6 is the method for constructing a unit slab according to claim 2, wherein a precast concrete slab is integrally provided on a deck plate in advance, and the deck plate is attached to the beam of the building structure. Is supported and the pipe is connected.

A method for constructing a unit slab according to claim 7 is the method for constructing a unit slab according to claim 3, wherein a cellular duct is provided in advance on the deck plate, and an electric wire is arranged in the cellular duct. It is characterized in that a precast concrete slab is provided on the opposite surface of the arranged deck plate, the deck plate is supported by the beam of the building structure, and the electric wire is connected.

[0014]

In the unit slab according to claim 1, since the deck plate and the precast concrete slab provided on the deck plate are integrally formed, by supporting the deck plate on the beam of the building structure, A unit slab is installed on the building structure.

According to the unit slab of the second aspect, in addition to the function of the first aspect, since the deck plate is provided with piping, the beam of the building structure is supported by the deck plate to thereby support the building structure. A pipe is arranged on the object.

The unit slab according to claim 3 has the function according to claim 1, and since the electric wire is arranged in the cellular duct of the deck plate, the deck plate 5 is supported by the beam 4 to thereby construct the building structure. An electric wire is arranged at.

According to the unit slab of the fourth aspect, in addition to the effect of the third aspect, the electric wires in the cellular ducts are connected by connecting the cellular ducts of the deck plates with the bushing. Therefore, the electric wire at the connection portion of the cellular duct is protected by the bushing.

In the method for constructing a unit slab according to claim 5, the precast concrete slab is integrally provided on the deck plate in advance and the deck plate is supported by the beam of the building structure, so that the unit slab is constructed on the building structure. It

In the method for constructing a unit slab according to a sixth aspect of the present invention, in addition to having the action of the fifth aspect, the deck plate is supported by the beam of the building structure and the pipes are connected, so that the deck plate is constructed. Along with the work, the piping work is performed.

In the method for constructing a unit slab according to claim 7, a cellular duct is provided in advance on the deck plate, an electric wire is arranged on the cellular duct, and a precast concrete slab is provided on the opposite surface of the deck plate on which the electric wire is arranged. Since the deck plate is supported by the beam of the building structure and the electric wire is connected, the work of arranging the electric wire is performed together with the construction work of the deck plate.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the unit slab and its construction method of the present invention will be described below with reference to FIGS. As shown in FIG. 1, reference numeral 1 is a unit slab, and the unit slab 1 is a pillar 3 of a building structure 2.
Beams 4 are bridged over and supported by these beams 4. That is, as shown in FIG. 2, the unit slab 1 includes a deck plate 5 supported by the beams 4, and precast concrete (PC) provided on the deck plate 5.
It is composed of version 6.

In the unit slab 1, a beam 4 made of H steel or the like is used.
A plurality of pipes 8 such as a water pipe, an air-conditioning duct, and a sprinkler pipe are hung under the metal rod-shaped member 9.
One end of each of these rod-shaped members 9 is fixed to the pipe 8,
The other end is fixed to the deck plate 5 with a fastening member 10 such as a nut.

On the deck plate 5, a plurality of convex portions 11 supported by the beams 4 and groove portions 12 provided between the convex portions 11 are alternately arranged in a plane. In this groove-shaped portion 12, a cover plate 14 is connected to the convex portion 11 adjacent to the groove-shaped portion 12, and a cellular duct 15 is provided from the cover plate 14 and the groove-shaped portion 12. The electric wire 16 is arranged. The cover plate 14 on which the electric wire 16 is arranged
Is made of, for example, a metal material or a synthetic resin, and is placed on the beam 14 via the fireproof coating portion 17.

On the other hand, at the bottom of the groove portion 12 in which the electric wire 16 is arranged, the cover plate 1 is provided at the bottom of the adjacent groove portion 12.
4 are bridged, and these cover plate 14 and groove-shaped portion 1
A space 13 is provided from the side wall of 2. In the space 13, the electric wires 16 of each cellular duct 15 can be connected, and an air passage for cooling the electric wires 16 can be formed.

As shown in FIG. 3, a cylindrical electric wire take-out portion 19 for taking out the electric wire 16 of the cellular duct 15 is provided at the bottom of the groove-like portion 12 and is orthogonal to the extending direction of the cellular duct 15. The header duct 20 is extended in the direction in which it runs. In this header duct 20,
An electric wire is laid inside, the precast concrete slab 6 is provided on the upper surface thereof, and a cylindrical electric wire take-out portion 21 for taking out the electric wire of the header duct 20 is provided. The precast concrete slab 6 is provided around the electric wire take-out portions 19 and 21.

At the end of each unit slab 1, as shown in FIG. 4, an electric wire connecting portion 25 for connecting the electric wire 16 in the cellular duct 15 is provided. In the wire connecting portion 25, the cover plate 1 of the deck plate 5 is
4 is mounted on the beam 4 via a fireproof coating 17, and a bushing 26 for connecting the cellular duct 15 of the deck plate 5 is provided. Both ends of the bushing 26 are inserted into the respective cellular ducts 15, and electric wires are arranged inside.

At the connecting portion of the pipe 8, the joint portion 3
0 is provided. The joint portion is provided with, for example, a spiral pipe 28 shown in FIG. 5 and a fitting pipe 31 shown in FIG. Both ends of the spiral pipe 28 are inserted into the opposed pipes 8, and the pipe 8 and the spiral pipe 28 are connected by connecting means 29 such as a tape. On the other hand, in the fitting pipe 31, the fitting groove 3 provided on the outer circumference is provided.
2 is provided at both ends, and the engaging portion 33 of the pipe 8 is fitted in the fitting groove 32.

A method of constructing such a unit slab 1 will be described. The electric wire 16 is previously arranged in the groove portion 12 of the deck plate 5 in a factory or the like. The cover plate 14 is connected to the convex portion 11 adjacent to the electric wire 16, and the precast concrete slab 6 is provided on the opposite surface of the groove portion 12 in which the electric wire 16 is arranged.

Then, the unit slab 1 is carried into the site of the building structure 2, and the unit slab 1 is lifted by a lifting equipment 40 such as a crane. And building structure 2
The deck plate 5 of the unit slab 1 is placed on the beam 4. The deck plate 5 is supported and fixed to the beam 4, and the pipe 8 is connected to the pipe 8 arranged in the building structure 2 by the joint portion 30. Meanwhile, deck plate 5
The electric wire 16 of the cellular duct 15 is inserted into the bushing 26, the electric wire 16 of the unit slab 1 is connected to the electric wire 16 wired in the building structure 2, and the unit slab 1 is installed in the building structure 2.

According to the unit slab 1 as described above, the deck plate 5 and the precast concrete slab 6 provided on the deck plate 5 are provided, so that the deck plate 5 is attached to the beam 4 of the building structure 2. By supporting it, the unit slab 1 can be constructed on the building structure 2. For this reason, the work of placing concrete on the site is not necessary, so that the workability of the unit slab 1 can be improved. Since the unit slab 1 can be manufactured at the factory, the unit slab 1 can be industrialized, and the unit slab 1 can be manufactured.
Can improve the quality of. Further, since the concrete pouring work is eliminated on site, even when the unit slab 1 is constructed on the high-rise building structure 2, the safety of the construction work on the unit slab 1 can be improved.

Since the piping 8 is provided on the deck plate 5, the piping 8 is arranged on the building structure 2 by supporting the deck plate 5 on the beam 4 of the building structure 2. For this reason, it is not necessary to dispose the pipe 8 on the site, and the workability of disposing the pipe 8 can be improved.

Cellular duct 1 of the deck plate 5
Since the electric wire 16 is disposed on the building structure 5, the deck plate 5 is supported on the beam 4 of the building structure 2 so that the building structure 2
The electric wire 16 is disposed in the. For this reason, it is not necessary to dispose the electric wire 16 on site, and therefore the workability of disposing the electric wire 16 can be improved. And the cellular duct 1 with the electric wire 16
Since 5 is provided in the unit slab 1, the building structure 2 can be office-automated, and the workability of adding the electric wire 16 can be improved.

On the other hand, since the space portion 13 is installed adjacent to the cellular duct 15, overheating of the electric wire 16 can be prevented by passing cooling air through the space portion 13, and the electric wire 16 can be prevented.
The safety of can be improved. Then, since the cellular duct 15 is supported by the beam 4 via the fireproof coating portion 17, the electric wire 1
The safety of 6 and the safety of the building structure 2 can be improved. Further, since the header duct 20 is provided on the deck plate 5, the electric wires 16 can be arranged in the vertical and horizontal directions of the unit slab 1, so that the building structure 2 can be office-automated.

A bushing 26 for connecting the cellular duct 15 of each deck plate 5 to the deck plate 5 is provided.
Since the bushings 26 are provided respectively,
Then, the electric wires 16 in each cellular duct 15 are connected. For this reason, the electric wire 16 at the connecting portion of the cellular duct 15 can be protected by the bushing 26, so that the safety of the electric wire 16 can be maintained.

On the other hand, according to the method of constructing the unit slab, the precast concrete slab 6 is provided on the deck plate 5 in advance in a factory or the like, and the beam 4 of the building structure 2 is made to support the deck plate 5, so that the construction is performed on site. It is possible to eliminate the work of placing concrete. Therefore, the construction period of the unit slab 1 can be shortened. Since the deck plate 5 can be supported by the beam 4 of the building structure 2 and the unit slab 1 can be installed on the building structure 2, the work steps required on site can be reduced, and the cost required for these work steps can be reduced. .

Since the deck plate 5 is supported on the beam 4 of the building structure 2 and the pipe 8 is connected, the deck plate 5 can be installed and the pipe 8 can be installed. . For this reason,
The arrangement period of the pipe 8 can be shortened.

Further, at the factory or the like, the electric wire 16 is arranged in the groove portion 12 of the deck plate 5, the cover plate 14 is connected to the convex portion 11 adjacent to the electric wire 16, and the groove shape in which the electric wire 16 is arranged is formed. Since the precast concrete slab 6 is provided on the opposite surface of the portion 12 to support the deck plate 5 on the beam 4 of the building structure 2 and to connect the electric wire 16, the construction of the deck plate 5 and the electric wire 16 are performed. Installation work can be performed. Therefore, the period for disposing the electric wire 8 can be shortened.

[0038]

As described above, according to the unit slab of the present invention and the construction method thereof, the following effects can be obtained. According to the unit slab of claim 1,
Since the deck plate and the precast concrete plate provided on the deck plate are integrally formed, a unit slab can be constructed on the building structure by supporting the deck plate on the beam of the building structure.
For this reason, it is possible to improve the workability of constructing the unit slab because the concrete placing work is not required on site. Since the unit slab can be manufactured at the factory, the unit slab can be industrialized and the quality of the unit slab can be improved. Since the concrete pouring work is eliminated on site, the safety of the construction work of the unit slab can be improved even when the unit slab is constructed on a high-rise building structure.

According to the unit slab of claim 2,
The effect of claim 1 can be obtained, and since the deck plate is provided with piping, by supporting the deck plate on the beam of the building structure,
Piping is provided in a building structure. Therefore, it is not necessary to dispose the pipes on site, and the workability of disposing the pipes can be improved.

According to the unit slab of claim 3,
The electric wire is arranged in the building structure by supporting the deck plate on the beam of the building structure because the electric wire is arranged in the cellular duct of the deck plate in addition to the effect of claim 1. To be done. For this reason, it is not necessary to dispose the electric wire on the spot, and thus the workability of disposing the electric wire can be improved. Since the cellular duct with electric wires is provided in the unit slab, the building structure can be office-automated.

According to the unit slab of claim 4,
In addition to being able to achieve the effect of claim 3, since the deck plate is provided with a bushing for connecting the cellular ducts of each deck plate, the electric wire in each cellular duct is connected by this bushing. For this reason, the electric wire at the connection portion of the cellular duct can be protected by the bushing, so that the safety of the electric wire can be maintained.

According to the unit slab construction method of claim 5, since the precast concrete slab is integrally provided on the deck plate in advance and the deck plate is supported by the beam of the building structure, the concrete slab is cast on site. Installation work can be eliminated. Therefore, the construction period of the unit slab can be shortened. Further, since the deck plate is supported by the beam of the building structure and the unit slab can be installed on the building structure, it is possible to reduce the work steps required on site and reduce the cost required for these work steps.

According to the method for constructing the unit slab of claim 6, the effect of claim 5 can be obtained, and the deck plate is supported by the beam of the building structure and the pipe is connected. Therefore, the work of arranging the pipes can be performed together with the work of constructing the deck plate. For this reason, the arrangement period of the pipe can be shortened.

According to the unit slab construction method of claim 7, a cellular duct is provided on the deck plate, an electric wire is arranged on the cellular duct, and a precast concrete slab is provided on the opposite surface of the deck plate on which the electric wire is arranged. Since the deck plate is supported by the beam of the building structure and the electric wire is connected, the work of arranging the electric wire can be performed together with the construction work of the deck plate. Therefore, it is possible to shorten the installation period of the electric wires.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a unit slab of the present invention.

FIG. 2 is a sectional view showing the unit slab of FIG.

3 is a partial cross-sectional perspective view showing the unit slab of FIG. 1. FIG.

FIG. 4 is a cross-sectional view showing a connection portion of the cellular duct of FIG.

5 is a side view showing a connecting portion of the pipe of FIG.

FIG. 6 is a side view showing another embodiment of FIG.

[Explanation of symbols]

 1 Unit Slab 2 Building Structure 3 Pillar 4 Beam 5 Deck Plate 6 Precast Concrete Plate 8 Piping 15 Cellular Duct 16 Electric Wire

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Koichi Sakurai 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yukio Murase 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Incorporated (72) Inventor Ken Nakajima 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.

Claims (7)

[Claims] 1. A unit slab in which a beam is bridged over a pillar of a building structure and supported by the beam, a deck plate supported by the beam, and a precast concrete slab provided on the deck plate. A unit slab characterized by being integrally formed from. 2. The unit slab according to claim 1, wherein the deck plate is provided with piping. 3. The unit slab according to claim 1, wherein the deck plate is provided with a cellular duct, and an electric wire is arranged in the cellular duct. 4. The unit slab according to claim 3, wherein the deck plate is provided with a bushing for connecting a cellular duct of each deck plate. 5. The unit slab construction method according to claim 1, wherein a precast concrete slab is integrally provided on the deck plate in advance, and the deck plate is supported by the beam of the building structure. Construction method. 6. The method for constructing a unit slab according to claim 2, wherein a precast concrete slab is integrally provided on the deck plate in advance, the deck plate is supported by the beam of the building structure, and the piping is connected. A method for constructing a unit slab, which is characterized in that 7. The unit slab construction method according to claim 3, wherein a cellular duct is provided in advance on the deck plate, an electric wire is arranged on the cellular duct, and precast concrete is provided on the opposite surface of the deck plate on which the electric wire is arranged. A method for constructing a unit slab, comprising providing a plate, supporting a deck plate on a beam of the building structure, and connecting the electric wire.