JP2002285712A - Underfloor structure of apartment house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the underfloor structure of an apartment house capable of forming a multi-purpose space in a required size at a required place without meeting a higher cost. SOLUTION: Parts of each floor slab are bulged to lower sections, and recessed multi-purpose space forming sections are formed to each floor slab.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an underfloor structure of an apartment house.

[0002]

2. Description of the Related Art Conventionally, as one form of an underfloor structure of an apartment house, a plurality of inverted beams are projected upward on a floor slab which divides each story, and a floor material is horizontally laid on the inverted beams. In some cases, a multipurpose space under the floor is formed between a floor material and a floor slab by forming a floor surface.

[0003]

However, the underfloor structure described above has the following disadvantages.

[0004] A reverse beam method of providing a reverse beam on a floor slab is as follows.
Since an unnecessarily large underfloor storage space is formed and a useless underfloor storage space is also held, the cost is relatively high.

In the reverse beam method, the height of each floor is 500 mm or more.
Because it is about 600 mm higher, it is difficult to secure the number of floors and floor area due to shading regulations and altitude oblique line regulations.

[0006] Since the underfloor storage space is formed by providing the inverted beams, the height of each floor is increased, and the number of floors is limited. Therefore, the number of apartment houses is limited.

[0007] Since the storage space under the floor is large, it may be cumbersome to install a fire detector due to the application of the Fire Service Law.

[0008]

Therefore, according to the present invention, in an apartment house divided into a plurality of stories by floor slabs, a part of each floor slab is swelled downward, and each floor slab has a concave shape. The multi-purpose space forming section of the present invention is formed to provide a floor structure of an apartment house.

The present invention also has the following configuration.

[0010] The living room is arranged in a room other than the room downstairs located immediately below the multipurpose space forming part.

[0011] In the downstairs room located immediately below the multipurpose space forming part, there is provided a water circulating function room such as a kitchen, a bathroom, a lavatory, and a toilet.

[0012] The multipurpose space forming portions formed on the floor slab of each level are alternately arranged for each floor so as to be staggered in the left-right direction.

[0013] The multipurpose space forming part is disposed immediately below the living room.

The multipurpose space forming part has at least one end face directly connected to the beam part.

[0015] A concave portion having a plurality of steps is formed in the multipurpose space forming portion.

A floor slab is formed by laying a pre-formed floor slab forming body between beams, and a multipurpose space forming part is formed in the floor slab forming body.

[0017]

Embodiments of the present invention will be described below.

That is, in the underfloor structure of an apartment house according to the present invention, a part of each floor slab is swelled downward in an apartment house formed by dividing the floor slab into a plurality of floors, so that each floor slab is provided with a floor slab. A concave multipurpose space forming part is formed.

By forming the multipurpose space forming section in each floor slab in this way, a multipurpose space of a required size can be formed at a necessary place without imposing a cost.

The multipurpose space forming section can be effectively used as a multipurpose space such as a storage space, a piping space, a maintenance space, and the like.

In addition, since there is no change in the height of each floor, there is no need to worry about shading or altitude oblique restrictions, and the number of floors and floor area can be effectively secured.

Furthermore, since the height of each floor is not changed and the number of floors is not limited, the number of apartment units is not limited.

Further, since the multipurpose space forming portion is not formed larger than necessary, it is not subject to the Fire Service Law, and there is no trouble such that the installation of a fire detector is required.

Here, the living room can be arranged in a room other than the room downstairs located immediately below the multipurpose space forming unit.

[0025] In this manner, the ceiling height of the living room can be kept large, and the living space can be formed slowly without giving a feeling of oppression to the resident. as a result,
Good livability can be secured.

In a downstairs room located immediately below the multipurpose space forming section, a water-filling function room such as a kitchen, a bathroom, a lavatory, and a toilet can be arranged.

Thus, the kitchen, bathroom, and
If the ceiling area is too high, it is difficult to clean and the thermal efficiency deteriorates when the ceiling area is too high. Because it is located in the lower-floor room located immediately below the ceiling, the height of the ceiling part of the water circulating function room can be reduced by the amount that the multipurpose space forming part swells downward, The cleaning of the water-circulating function room can be facilitated, and the thermal efficiency of the water-circulating function room can be increased.

Further, the multipurpose space forming portions formed on the floor slabs of each level can be alternately arranged for each floor so as to be staggered in the left-right direction.

In this way, the load balance of the entire apartment house can be kept good, and the strength of the apartment house can be kept good.

Further, the multipurpose space forming part can be arranged directly below the living room.

In this way, articles can be stored in the multipurpose space forming section disposed immediately below the living room, and articles can be easily taken in and out as necessary.

Further, the multipurpose space forming portion can directly connect at least one end face to the beam portion.

In this way, the multipurpose space forming portion can be formed to have at least one side fixed structure with respect to the beam portion.
Good rigidity of the floor slab can be secured.

Further, a concave portion having a plurality of steps can be formed in the multipurpose space forming portion.

As described above, the articles having different heights can be appropriately accommodated in the recesses having a plurality of steps formed in the multi-purpose space forming section, and the accommodation efficiency can be secured well.

In addition, the unused space behind the ceiling formed immediately below the multipurpose space forming section can be effectively used to the maximum.

For example, it is possible to arrange a bathroom or a lavatory or a toilet where the ceiling may be low, and a kitchen or the like whose ceiling is desired to be slightly higher, so that the layout design in the living space can be expanded. be able to.

In addition, a floor slab can be formed by laying a pre-formed floor slab forming member between the beam portions, and a multipurpose space forming portion can be formed in the floor slab forming member.

In this way, by commercializing the floor slab forming body as a plastic cast concrete,
Good quality and strength management of the floor slab formed body can be satisfactorily ensured in a production factory or the like.

In addition, by preparing a plurality of floor slab forming bodies and forming the floor slab in a modular form, the construction of the floor slab can be performed quickly and easily.

Further, by making the size of the multipurpose space forming section formed on the floor slab forming body larger than, for example, the unit bus, the work of disposing the unit bus in the multipurpose space forming section can be performed. It can be done easily.

[0042]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIGS. 1 and 2 is an apartment house made of reinforced concrete according to the present invention.
Is a plurality of pillars 1 erected in the front-rear and left-right directions.
And the beam 2 laid horizontally between the opposing pillars 1 and 1,
The outer wall 3, the inner wall 4, and the floor slab 5 are stretched to form a plurality of living spaces S therein.

As shown in FIGS. 3 to 5, a floor 6 is extended in the living space S, and a living / dining room 7, a Japanese-style room 8, and a kitchen 9 are provided on the floor 6. And bathroom
10, washroom 11, toilet 12, western-style rooms 13, 14, entrance 15, and clogs 16
And hanging cabinet 24, closet 25, storage 26 and closet 27,2
8 is provided. Reference numeral 20 denotes a window, reference numeral 21 denotes an internal partition wall, and reference numeral 23 denotes a pipe space disposed at symmetric positions.

Here, of the living / dining room 7, the Japanese-style room 8, and the Western-style rooms 13 and 14 as living rooms,
The Japanese-style room 8 is formed in the center of one of the left and right sides of the floor 6, while a kitchen 9, a bathroom 10, a toilet 11, and a toilet 12 are provided.
Is formed in the center of the floor 6 on either the left or right side, and the Japanese room 8 and the water circulating function chamber 17 are arranged adjacent to each other on the left and right.

In addition, a multipurpose space forming portion 18 which bulges downward and forms a concave multipurpose space S1 on the upper surface is formed in a portion of the floor slab 5 located immediately below the Japanese room 8, thereby forming the multipurpose space. In a lower floor room located immediately below the section 18, a water-circulating function room 17 is arranged. 19 is a storage case.

In this way, the multipurpose space forming portions 18 formed on the floor slabs 5 of each level are alternately arranged for each floor so as to be staggered in the left-right direction, so that the load balance of the entire apartment house A is good. And the strength of the apartment house A can be secured well.

At this time, the floor 6 of the Japanese-style room 8 (the tatami mat in this embodiment)
An opening / closing body (not shown) is provided under the opening 22), and the opening / closing body is opened, so that articles can be easily stored in the multipurpose space forming portion 18 disposed immediately below the Japanese-style room 8. In addition to this, it is possible to easily take in and out articles as needed.

Here, kitchen 9, bathroom 10, lavatory 11,
And, the function area 17 around the water such as the toilet 12 has a problem that if the ceiling 5a of each floor formed by the lower surface of the floor slab 5 is too high, it is difficult to clean and the thermal efficiency is deteriorated. Since such a water circulating function room 17 is arranged in a room downstairs located immediately below the multipurpose space forming portion 18 bulging downward, only the amount of the multipurpose space forming portion 18 bulging downward, The height of the ceiling 5a of the water circulating function room 17 can be reduced, so that the water circulating function room 17 can be easily cleaned and the thermal efficiency of the water circulating function room 17 can be increased. it can.

Therefore, in order to facilitate the cleaning and ensure good thermal efficiency, the height of the ceiling portion 5a of the water circulating function room 17 is set to the minimum necessary height, so that the multipurpose space forming portion 18 is formed. Can be set as large as possible,
The minimum necessary multi-purpose space S1 can be secured.

In this embodiment, as shown in FIGS. 2 and 3, a multipurpose space forming portion 18 formed immediately below the Japanese-style room 8 is formed.
Is extended to a position immediately below the closet 25, the storage case 26, and the closet 27.

In this manner, as shown in FIG. 3, in the closet 27, the clothes 29, 30 and the like can be stored in a state of being suspended in two vertical stages, and the multipurpose space of the multipurpose space forming section 18 can be stored. Since the hanging positions of the upper and lower tiers can be set low by the amount of the storage space by S1, even small women and children can easily hang or take out the clothes 29, 30 and the like.

Further, a space for providing the pillow shelf 31 and the like in the upper portion of the closet 27 can be formed by an amount corresponding to the lowered hanging position of the upper stage, and the storage efficiency (less dead space) can be improved. .

In this embodiment, as shown in FIG. 4 and FIG.
The storage space in the clog box 16 is increased by the storage space of the multi-purpose space S1 of the multi-purpose space forming unit 18 so that the tricycle 32, the stroller 33, and the like can be stored in the clog box 16. H1 is the floor height, H2 is the ceiling height of the room, and H3 is the barrier-free dimension.

As described above, conventionally, the three-wheeled vehicle 32
The entrance 15 where the stroller 33 and the like are placed can be widely used. 34 is shoes.

At this time, the shoe box 16 placed at the entrance 15 downstairs
Even if the multipurpose space forming part 18 on the floor is located just above the floor, the necessity of installing the hanging cabinet 24 etc. at an accessible height, Existence does not hinder at all.

In the multi-purpose space forming section 18, a terminal end of a horizontal drain pipe 47 (see FIG. 20) which is piped under the floor is arranged.
Since a downward slope can be formed from the beginning to the end of the drain horizontal pipe 47, the water circulation function chamber 17 is
Even when it is arranged at a position distant from 23, it is possible to ensure good drainage, and it is possible to increase the degree of freedom of the layout of the water circulating function room 17.

FIG. 6 shows another embodiment in which the multipurpose space forming portion 18 is formed directly below the loft 40. The multipurpose space S1 formed in the multipurpose space forming portion 18 is provided between the loft 40 and the multipurpose space S1. A large space S2 is secured so that both spaces S1 and S2 can be effectively used as a closet, a closet or a closet.

FIG. 7 shows a case where a unit bathroom 41 is formed immediately below the multipurpose space forming part 18 and the unit bathroom 41 is formed.
In the other embodiment, the toilet 11 is arranged next to the toilet 11 and the corridor 42 is provided next to the toilet 11, and the intermediate fan 43 is provided by using the under-ceiling space S3 located above the corridor 42. The ventilation pipe 44 is interposed between the intermediate fan 43 and the unit bathroom 41, and the ventilation pipe 44 is formed substantially along the lower surface of the multipurpose space forming part 18 above the washroom 11. Has a compact piping structure.

FIG. 8 is an explanatory plan view of the multipurpose space forming section 18, and FIG. 9 is a sectional view taken along the line II in FIG. 8, wherein one end face of the bottom 18-1 of the multipurpose space forming section 18 is a small beam section. It is directly connected to 45 and has a one-side fixed structure in which one side of the bottom part 18-1 of the multipurpose space forming part 18 is fixed to the small beam part 45.

As described above, when the multipurpose space forming part 18 is small, the floor slab 5 is formed by fixing the one side of the bottom part 18-1 to at least the small beam part 45 which is a beam part. Good rigidity can be ensured.

FIG. 10 is an explanatory plan view of the multipurpose space forming section 18 as a first modification, FIG. 11 (a) is a sectional view taken along the line II-II of FIG. 10, and FIG. It is a II'-II 'line cross-sectional view, the left and right end faces of the bottom 18-1 of the multipurpose space forming part 18,
There is no two-side fixing structure in which the two sides of the bottom 18-1 of the multipurpose space forming part 18 are fixed to both the beams 2 and 46 by directly connecting to the beam 2 and the small beams 46 arranged opposite thereto. ing.

As described above, the rigidity of the floor slab 5 is further improved by forming the two-side fixed structure in which the two sides of the bottom 18-1 of the multipurpose space forming part 18 are fixed to the beam 2 and the small beam 46. It is possible to secure better.

FIG. 12 is an explanatory plan view of the multipurpose space forming section 18 as a second modification, and FIG. 13 is a sectional view taken along the line III-III of FIG. Are directly connected to the beam 2 and the two small beams 45, 46, and these beams 2, 45, 46 are connected to the bottom 18 of the multipurpose space forming portion 18.
-1 is fixed on three sides.

As described above, by forming a three-side fixing structure in which the three sides of the bottom part 18-1 of the multipurpose space forming part 18 are fixed to the beam part 2 and the small beam parts 45 and 46, the rigidity of the floor slab 5 is improved. Can be further satisfactorily secured.

FIG. 14 is an explanatory plan view of the multipurpose space forming section 18 as a third modification, and FIG. 15 is a cross-sectional view taken along the line IV-IV of FIG. Are directly connected to the beam 2 and the three small beams 45, 45, 46, and the four sides of the bottom 18-1 of the multipurpose space forming portion 18 are connected to these beams 2, 45, 45, 46. It has a fixed four-sided structure.

As described above, the rigidity of the floor slab 5 is improved by forming a four-sided fixing structure in which the four sides of the bottom 18-1 of the multipurpose space forming part 18 are fixed to the beam 2 and the small beams 45, 45, 46. Can be made strong.

FIG. 16 is an explanatory plan view of a multipurpose space forming section 18 as a fourth modification, and FIG. 17 is a cross-sectional view taken along the line VV of FIG. 16. The multipurpose space forming section 18 has a three-side fixed structure. At the same time, first and second multipurpose spaces S1a and S1b are formed in the multipurpose space forming section 18 as concave portions having a plurality of (two in this embodiment) steps.

In this way, the objects having different heights can be appropriately accommodated in the first and second multipurpose spaces S1a and S1b formed in the multipurpose space forming section 18, and the accommodation efficiency can be improved. Can be secured.

Moreover, the unused space behind the ceiling formed directly below the multipurpose space forming section 18 can be used effectively to the maximum.

For example, it is possible to arrange a bathroom 10, a lavatory 11, and a toilet 12, which may have a low ceiling, and a kitchen 9, whose ceiling is desired to be slightly higher, adjacent to the living space S.
The layout design inside can be expanded.

FIG. 18 is an explanatory plan view of a multipurpose space forming unit 18 as a fifth modification, and FIG. 19 is a cross-sectional view taken along the line VI-VI of FIG. 18. The multipurpose space forming unit 18 has a four-side fixed structure. In addition, first and second multipurpose spaces S1a and S1b are formed in the multipurpose space forming portion 18 as concave portions having a plurality of (two in this embodiment) steps.

As described above, the first and second multi-purpose spaces S1a and S1b formed in the multi-purpose space forming section 18 can accommodate the objects having different heights as appropriate, thereby improving the storage efficiency. And a multi-purpose space forming unit 18
Can have a high rigidity.

FIG. 20 shows an embodiment in which a horizontal drainage pipe 47 having a start end connected to the water circulating function chamber 17 is arranged in the first and second multipurpose spaces S1a and S1b of the multipurpose space forming section 18 as a fifth modification. An example is shown. In this embodiment, when the end of the horizontal drain pipe 47 is connected to the vertical drain pipe 48, a large gradient for the first multipurpose space S1a can be formed, and the drainage efficiency is improved. be able to.

Then, the water circulation function room 17 is provided with a pipe space.
Even when it is arranged at a position distant from 23, it is possible to ensure good drainage, and it is possible to increase the degree of freedom of the layout of the water circulating function room 17.

FIG. 21 is an explanatory plan view of an apartment house A having a multipurpose space forming part 18 according to a second embodiment.
Is a cross-sectional side view of the apartment house A, FIG. 23 is a plan view of the multipurpose space forming section 18, and FIG. 24 is a cross-sectional side view of the multipurpose space forming section 18. A plurality of molded floor slab forming bodies 50 are erected between the beam portions 2, 2, 2, 2 to form the floor slab 5, and the floor slab forming body 50 is formed.
The multi-purpose space forming portions 18 are formed in 50, respectively.

The size of the multipurpose space forming part 18 formed in the floor slab forming body 50 is set to a size capable of accommodating the bathroom 10 so that the inside of the multipurpose space S1 of the multipurpose space forming part 18 is formed. The work of installing the bathroom 10 into the bathroom 10 can be easily performed.

As described above, the floor slab forming body 50 is commercialized as a precast concrete in a production factory or the like, so that the quality and strength management of the floor slab forming body 50 can be ensured well in the production factory or the like. Can be.

Further, by preparing a plurality of floor slab forming bodies 50 and forming the floor slab 5 in a modular form, the construction of the floor slab 5 can be performed quickly and easily.

FIG. 25 is an explanatory plan view of the floor slab 5 having the multipurpose space forming part 18 according to the third embodiment.
Is a cross-sectional side view of the same floor slab 5. In such a floor slab 5, a left and right half of the floor slab 5 of each room is formed as a multipurpose space forming part 18 around a virtual center line C, and a multipurpose space is formed.
S1 is largely secured.

Further, in the floor slab 5 on the same floor, the multipurpose space forming portions 18 of each room are formed on the same side on either the left or right side, and the multipurpose space forming portions 18 on the upper and lower floors are halved by the right and left sides. By moving the floor slab 5 to the shifted state,
Easiness of construction can be improved.

Further, a multipurpose space forming section 18 for each layer
Is simply shifted halfway left and right with respect to each of the multipurpose spaces 18 on the upper and lower floors. , All the house plans can be made the same plan.

FIG. 27 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a fourth embodiment. In the floor slab 5, an opening 51 is formed in the floor slab 5, and the opening 51 is formed. The multipurpose space forming body 52 is fitted into the
I'm trying to block 51.

Then, as shown in FIG. 28, the multipurpose space forming body 52 has a forming body main body 53 formed in a box shape with a top opening.
And a locking peripheral body 54 formed on the upper peripheral part of the main body 53 are integrally formed of a metallic material.

In this way, by forming the opening 51 in the floor slab 5 and appropriately fitting and arranging the multipurpose space forming body 52, rainwater or the like is accumulated in the multipurpose space S1 during construction. Can be prevented.

Further, since the multipurpose space forming member 52 is made of metal, fire prevention, soundproofing, and load reduction can be achieved.

FIG. 29 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a fifth embodiment. In the floor slab 5, an opening 51 is formed in the floor slab 5, and the opening 51 is formed. The multipurpose space forming body 52 is fitted into the
I'm trying to block 51.

Here, as shown in FIG. 30, the multipurpose space forming body 52 of the fourth embodiment is a multipurpose space forming body.
It has the same basic structure as 52, but differs in that it is made of concrete. 55 is a connecting piece for suspension.

In this way, by forming the multipurpose space forming member 52 as a precast concrete product, the quality and strength of the multipurpose space forming portion 18 can be controlled well, and the construction can be facilitated.

FIG. 31 is a sectional side view of a floor slab 5 having a multipurpose space forming section 18 according to a sixth embodiment. In the multipurpose space forming section 18, a plurality of storage cases 19 are provided in a multipurpose space S1. And an opening / closing lid 56 is provided in each storage case 19 so that each opening / closing lid 56 forms a part of the floor 6 in a closed state.

As shown in FIG. 32, the storage case 19 is formed of a lightweight material having heat insulation and sound insulation (sound absorption) effects such as styrene to ensure good heat insulation and sound insulation effects. are doing.

FIG. 33 is a cross-sectional side view of a floor slab 5 having a multipurpose space forming portion 18 according to a seventh embodiment. In the multipurpose space forming portion 18, an arched floor portion is seen between upper ends. Since the support 57 is erected and the load acting on the floor 6 can be received by the wall of the multipurpose space forming portion 18 by the arch-shaped floor support 57, the floor 6 can be securely mounted. And the multi-purpose space S1 can be widely secured.

FIG. 34 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 according to an eighth embodiment. In the multipurpose space forming portion 18, floor support members 57, 57 are provided on the left and right sides.
And the floor 6 is supported by these floor supports 57, 57.

The floor support 57 has a support body 58 and a bundle 59, and the bundle 59 is covered and protected by a protective cover 60. 61 is a floor opening.

In this way, the floor supporting member can be simply arranged at the front, rear, left and right sides of the floor opening 61 without arranging a large number of bundles 59 at narrow intervals. Since the load acting on the floor 6 can be received by the wall portion of the multipurpose space forming portion 18 by the 57, the floor 6 can be reliably supported.

Here, as the floor material forming the floor portion 6,
Veneer, particle board, extruded cement molded board, A
Although an LC version can be considered, strength, weight, workability, price,
Due to environmental issues and the like, a recycled cardboard honeycomb plate can also be used.

FIG. 35 is a cross-sectional side view of a floor slab 5 having a multipurpose space forming part 18 according to a ninth embodiment. In the multipurpose space forming part 18, the storage case 19 accommodated in the multipurpose space S1 is shown. A plurality of opening / closing lids 62 are provided, and each opening / closing lid 62 is provided.
Form a part of the floor 6. 62a is an opening / closing cue.

By opening / closing the desired opening / closing lid 62 in this manner, it is possible to efficiently carry out and put out the stored items into and out of the storage case 19.

FIG. 36 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a tenth embodiment.
In the same multipurpose space forming part 18, a drain hole 63 is formed at the lower part,
Rainwater and the like can be discharged through the drain holes 63.

As shown in FIG. 37, a plurality of erection lids 64 are removably installed between the upper ends of the multi-purpose space forming part 18 so that the operator can step on the multi-purpose space during the erection of the skeleton. It does not fall into the space S1.

FIG. 38 is a perspective view of the lid support 65. The lid support 65 is disposed in the multipurpose space forming section 18, and the multipurpose space forming section 18 is closed. It supports a closed body (not shown) that forms a part of the floor 6.

Further, as shown in FIG. 39, the lid support 65 is formed of stretchable support forming pieces 66, 66, 66, 66 and a reinforcing connecting piece 67 to form a multipurpose space. When closing the cover S1, the cover support 65 is assembled as shown in FIG. 38, placed in the multipurpose space S1, the cover is placed on the cover support 65, and A lid can be supported. 66
a, 66b and 66c are expansion and contraction pieces.

At this time, the lid support 65 is a support forming piece.
Since it is formed from 66, 66, 66, 66 and the reinforcing connecting piece 67, the stored items can be stored in the multipurpose space S1 without any trouble.

When the multipurpose space S1 is to be opened, the lid support 65 can be taken out of the storage space S1 and contracted, so that the size can be reduced.

FIG. 40 is a perspective view showing a modification of the opening / closing lid 62. The opening / closing lid 62 is formed such that the front, rear, left and right widths of the lower surface are smaller than the front, rear, right and left widths of the upper surface. While forming the tapered surface 62b, the floor opening 61 formed in the floor 6
A floor-side tapered surface 61a is formed on the inner peripheral surface of the lid, and the lid-side tapered surface 62b of the lid 62 is brought into surface contact with the floor-side tapered surface 61a via a rubber packing 67. 62
Thereby, the floor opening 61 can be closed.

In this manner, the lid-side tapered surface 62b and the floor-side tapered surface 61a are formed so that the upper portion is widened, so that the lid 62 can be easily opened and closed. , Rubber packing 6 between both tapered surfaces 62b, 61a
7 can be interposed, and the tightness of the opening / closing lid 62 can be ensured well.

FIG. 41 is a cross-sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as an eleventh embodiment.
In the multipurpose space forming section 18, the upper surface of the multipurpose space S1 can be opened by sliding the opening / closing lid 62.

That is, as shown in FIG. 42, an opening / closing lid housing section 68 is provided on the floor slab 5 located near the multipurpose space forming section 18, and the opening / closing lid housing section 68 is provided in the opening / closing lid housing section 68. 62
Can be moved in and out while sliding horizontally.

In this way, the lid 62 can be easily opened and closed without lifting the lid 62.

FIG. 43 is a perspective view showing a modification of the multipurpose space forming section 18 as the eleventh embodiment. The opening / closing lid 62 provided in the multipurpose space forming section 18 is as shown in FIG. Then, after being slid once to the front and then to the right, it can be accommodated in the opening / closing lid housing section 68, and the upper surface of the multipurpose space S1 can be opened.

Thus, the inconvenience that the opening / closing lid 62 forming a part of the floor portion 6 easily slides and opens when the resident walks is prevented.

FIG. 45 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a twelfth embodiment.
In the multipurpose space forming section 18, a support frame 70 is erected on the upper surface portion, and as shown in FIG. 46, nine floor forming bodies 71 formed in a square in plan view on the support frame 70 are provided. Laying.

By removing one floor forming member 71, the other eight floor forming members 71 can be slid on the support frame 70 in the front-rear and left-right directions. ing.

In this way, by simply lifting and removing one floor-forming body 71, the other eight floor-forming bodies 71 can be easily moved by sliding without lifting.

FIG. 47 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a thirteenth embodiment.
In the multipurpose space forming section 18, a table 72 is erected on the floor 6 so as to be located directly above the multipurpose space S1, and as shown in FIG. A recess 73 is formed, and an opening / closing lid 74 is attached to the storage recess 73 so as to be freely opened and closed.

In this manner, the television remote controller and the like can be stored in the storage recess 73.

At this time, by installing a kotatsu in place of the table 72, the multipurpose space S1 can be effectively used as a space for putting a foot of the kotatsu.

FIG. 49 is a cross-sectional side view of a floor slab 5 having a multipurpose space forming part 18 according to a fourteenth embodiment.
In the multipurpose space forming section 18, a partition wall 75 is provided in the multipurpose space S1.
And a part of the multipurpose space S1 is defined as a drain pipe installation space S4, and a drain pipe 76 is installed in the drain pipe installation space S4.

Then, as shown in FIG.
, A drain pipe cleaning port 77 is formed, and the drain pipe cleaning port 77 is closed with a cleaning lid 78.

In this manner, the drain pipe cleaning port 77 conventionally exposed on the floor 6 can be disposed in the multipurpose space S1 so as to be invisible and improve the aesthetic appearance. Can be.

FIG. 51 is a perspective view of the laying body 80, and FIG.
FIG. 2 is a cross-sectional view of the laid body 80, in which the laid body 81 and a flooring body 82 are integrally formed by being stretched in a front and back superposed state.

In this way, by inverting the laid body 80, it is possible to easily change between a Japanese-style room configuration in which the tatami body 81 is arranged on the upper surface and a Western-style room configuration in which the flooring body 82 is arranged on the upper surface. Thus, it is possible to easily select either a Japanese-style room or a Western-style room according to the mood of the resident, and to change the life.

FIG. 53 is a plan view of a floor slab 5 having a multipurpose space forming portion 18 as a fifteenth embodiment, and FIG.
It is a cross-sectional side view of the same floor slab 5, and the same multipurpose space forming part
In 18, a tatami 83 is laid on the upper surface of the opening / closing lid 62 that closes the upper surface of the multipurpose space S1 so that it can be freely opened and closed, and on the floor 6 around the opening / closing lid 62.

The upper surface of the floor portion 6 is subjected to flooring processing.
As shown in FIG. 6, all the tatami mats 83 are accommodated in the multipurpose space S1.

FIG. 57 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a fifteenth embodiment.
The multipurpose space forming part 18 is formed by expanding a part of the ceiling 5a (floor slab 5 on the upper floor) upward, and falls into the multipurpose space S1 formed in the multipurpose space forming part 18. The body 84 is provided, and the falling wall 84 can be moved up and down between a use position where it is suspended from the ceiling 5a and an unused position where it is stored in the multipurpose space S1.

In this manner, the falling wall 84 is attached to the ceiling 5a.
By lowering and arranging it in the use position, with the falling wall 84 as a field, one room can be a Japanese-style room 85, and the other room can be a Western room 86, By housing the multi-purpose space S1 and disposing it in the unused position, the space of the Japanese-style room 85 and the Western-style room 86 can be integrated.

That is, conventionally, there is a problem that the space between the Japanese-style room 85 and the Western-style room 86 cannot be integrated because the descending wall 84 is provided in a fixed state, but in this embodiment, the Japanese-style room 85 or the Western-style room is not provided. It can be used in a spacious room as one room of 86.

At this time, the above-mentioned laying body 80 is laid on the floor 6 of the Japanese-style room 85, and the laying body 80 is formed by extending the tatami body 81 and the flooring body 82 in a superposed state on the front and back sides and integrally. Forming
It can be turned upside down as needed to make the Japanese-style room 85 and the Western-style room
It can be adapted to 86 usage patterns.

In FIG. 58, reference numeral 87 denotes a sliding door, and 88 denotes a sliding door storage unit (so-called door pocket) for storing the sliding door 87. The sliding door 87 is appropriately stored in the sliding door storage unit 88, and a Japanese-style room 85 and a Western-style room 86 are provided. And can be used in a state where it is widened as one room.

FIG. 59 is a sectional side view of a floor slab 5 having a multipurpose space forming portion 18 as a sixteenth embodiment.
In the multipurpose space forming section 18, a pair of left and right opening and closing lids 90, 90 are disposed on the upper surface of the multipurpose space S1, and each of the opening and closing lids 90,
Numeral 90 is installed between the upper part of the multipurpose space forming part 18 so as to be rotatable and fixable in a substantially horizontal state via rotating shafts 91, 91.

Further, as shown in FIG. 60, the openable / closable lid body 90 is formed integrally with the tatami body 92 and the flooring body 93 in a state of being superposed on the front and back sides.

As described above, when a storage object is put in or taken out of the multipurpose space S1, the upper surface of the multipurpose space S1 can be partially or entirely opened by rotating the open / close lids 90. it can.

Further, depending on whether the floor 6 is used, that is, whether it is used as the Japanese-style room 8 or as the Western-style room 13, the opening / closing lid 90 is appropriately inverted,
The tatami mat 92 and the flooring 93 can be selectively used.

FIG. 61 is a cross-sectional side view of a floor slab 5 having a multipurpose space forming part 18 as a seventeenth embodiment.
The multipurpose space forming part 18 is formed in a portion of the floor slab 5 located immediately below the closet 27, and accommodates a moisture absorbent, a chemical substance adsorbent 95, and the like in the multipurpose space S1 of the multipurpose space forming part 18. A storage container 94 is provided.

As described above, the chemical substance adsorbent 95, which has an excellent effect of adsorbing and removing chemical substances (such as formaldehyde) contained in the adhesive of the interior material and the plywood or the like, such as artificial zeolite or the like, is placed in the container 94. By adsorbing and removing chemical substances with the artificial zeolite, it is possible to remove the cause of sick house syndrome (a symptom that has been a problem in newly built houses), which causes autonomic imbalance. it can.

FIG. 62 shows a tatami mat 96. The tatami mat 96 has a chemical substance adsorbent excellent in the effect of adsorbing and removing a chemical substance (formaldehyde and the like) contained in the above-mentioned adhesive for interior materials and plywood. 95, for example, incorporating an artificial zeolite or the like.

By laying the tatami mat 96 on the floor 6 in this manner, the chemical substance adsorbent 95
However, it absorbs and removes chemical substances (formaldehyde, etc.) contained in adhesives and plywood of interior materials, causing sick house syndrome (symptoms of autonomic dysfunction). Can be removed.

[0138]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, in an apartment house divided into a plurality of levels by a floor slab,
A part of each floor slab is swelled downward to form a concave multipurpose space forming part in each floor slab.

By forming the multipurpose space forming part in each floor slab in this way, a multipurpose space of a required size can be formed at a necessary place without imposing a cost.

The multipurpose space forming section can be effectively used as a multipurpose space such as a storage space, a piping space, a maintenance space, and the like.

In addition, since there is no change in the height of each floor, there is no need to worry about shading or altitude oblique line restrictions, and the number of floors and floor area can be effectively secured.

Further, since the height of each floor does not change and the number of floors is not limited, the number of apartments is not limited.

Further, since the multipurpose space forming section is not formed larger than necessary, it is not subject to the Fire Service Law, and there is no inconvenience such as obliging the installation of a fire detector.

According to the second aspect of the present invention, the living room is arranged in a room other than the room on the lower floor located immediately below the multipurpose space forming part.

In this way, the ceiling height of the living room is ensured large, and the living space can be formed large slowly without giving the resident a feeling of oppression. as a result,
Good livability can be secured.

According to the third aspect of the present invention, a function room for water, such as a kitchen, a bathroom, a lavatory, and a toilet, is arranged in a room downstairs located immediately below the multipurpose space forming unit.

In this manner, the kitchen, bathroom, and
If the ceiling area is too high, it is difficult to clean and the thermal efficiency deteriorates when the ceiling area is too high. Because it is located in the lower-floor room located immediately below the ceiling, the height of the ceiling part of the water circulating function room can be reduced by the amount that the multipurpose space forming part swells downward, The cleaning of the water-circulating function room can be facilitated, and the thermal efficiency of the water-circulating function room can be increased.

According to the fourth aspect of the present invention, the multipurpose space forming portions formed on the floor slabs of each floor are alternately arranged for each floor so as to be staggered in the left-right direction.

In this way, the load balance of the whole apartment house can be kept good, and the strength of the apartment house can be kept good.

According to the fifth aspect of the present invention, the multipurpose space forming section is disposed immediately below the living room.

In this way, articles can be stored in the multipurpose space forming section disposed immediately below the living room, and articles can be easily taken in and out as necessary.

According to the present invention, at least one end face of the multipurpose space forming portion is directly connected to the beam portion.

In this way, the multipurpose space forming portion can be formed to have at least one side fixed structure with respect to the beam portion.
Good rigidity of the floor slab can be secured.

According to the present invention, a concave portion having a plurality of steps is formed in the multipurpose space forming portion.

In this way, the objects having different heights can be appropriately accommodated in the concave portions having a plurality of steps formed in the multipurpose space forming portion, and the accommodation efficiency can be secured well.

In addition, the unused space behind the ceiling formed immediately below such a multipurpose space forming portion can be effectively used to the maximum.

For example, a bathroom or a toilet or a toilet where the ceiling may be low, and a kitchen or the like where the ceiling is desired to be slightly higher can be arranged adjacent to each other, so that the layout design in the living space can be expanded. be able to.

According to the present invention, the floor slab is formed by laying the preformed floor slab forming member between the beams, and the multipurpose space forming portion is formed in the floor slab forming member. .

[0160] In this way, by commercializing the floor slab formed body as a plastic cast concrete,
Good quality and strength management of the floor slab formed body can be satisfactorily ensured in a production factory or the like.

Moreover, by preparing a plurality of floor slab forming bodies and forming the floor slab in a modular form, the construction of the floor slab can be performed quickly and easily.

Further, by making the size of the multipurpose space forming section formed in the floor slab forming body larger than, for example, the unit bus, the work of disposing the unit bus in the same multipurpose space forming section can be performed. It can be done easily.

[Brief description of the drawings]

FIG. 1 is an explanatory front sectional view of an underfloor structure of an apartment house according to the present invention.

FIG. 2 is an explanatory plan view of the underfloor structure.

FIG. 3 is an explanatory side sectional view of the underfloor structure in a closet arrangement position.

FIG. 4 is an explanatory cross-sectional side view of an underfloor structure at a position where a shoebox is arranged.

FIG. 5 is a cross-sectional front view of the underfloor structure at the position where the shoebox is arranged.

FIG. 6 is an explanatory sectional side view of the underfloor structure at the loft arrangement position.

FIG. 7 is an explanatory cross-sectional side view of an underfloor structure in which ventilation pipes are arranged.

FIG. 8 is an explanatory plan view of a multipurpose space forming unit.

FIG. 9 is a sectional view taken along line II of FIG. 8;

FIG. 10 is an explanatory plan view of a multipurpose space forming section as a first modification.

11 (a) is a sectional view taken along the line II-II of FIG. 10 and FIG.
Sectional view (b) of line I '.

FIG. 12 is an explanatory plan view of a multipurpose space forming unit as a second modification.

FIG. 13 is a sectional view taken along the line III-III in FIG. 12;

FIG. 14 is an explanatory plan view of a multipurpose space forming unit as a third modification.

FIG. 15 is a sectional view taken along line IV-IV of FIG. 14;

FIG. 16 is an explanatory plan view of a multipurpose space forming section as a fourth modification.

FIG. 17 is a sectional view taken along line VV of FIG.

FIG. 18 is an explanatory plan view of a multipurpose space forming unit as a fifth modification.

FIG. 19 is a sectional view taken along the line VI-VI of FIG.

FIG. 20 is an explanatory side sectional view showing a piping structure of a horizontal drainage pipe.

FIG. 21 is an explanatory plan view of an apartment house including a multipurpose space forming unit according to a second embodiment.

FIG. 22 is a sectional side view of the apartment house.

FIG. 23 is a plan view of a multipurpose space forming unit.

FIG. 24 is a sectional side view of the multipurpose space forming unit.

FIG. 25 is an explanatory plan view of a floor slab including a multipurpose space forming part as a third embodiment.

FIG. 26 is a cross-sectional side view of the floor slab.

FIG. 27 is a cross-sectional side view of a floor slab including a multipurpose space forming part as a fourth embodiment.

FIG. 28 is a plan view of the multipurpose space forming body.

FIG. 29 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a fifth embodiment.

FIG. 30 is a plan view of the multipurpose space forming body.

FIG. 31 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a sixth embodiment.

FIG. 32 is a partially cutaway plan view of the storage case.

FIG. 33 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a seventh embodiment.

FIG. 34 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to an eighth embodiment.

FIG. 35 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a ninth embodiment.

FIG. 36 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a tenth embodiment.

FIG. 37 is a plan view of a construction lid.

FIG. 38 is a perspective view of a lid support.

FIG. 39 is a partially enlarged explanatory view of the lid support.

FIG. 40 is a perspective view showing a modification of the opening / closing lid.

FIG. 41 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to an eleventh embodiment.

FIG. 42 is an explanatory plan view of the opening / closing lid.

FIG. 43 is a perspective view showing a modification of the multipurpose space forming part as the eleventh embodiment.

FIG. 44 is an explanatory plan view of the opening / closing lid.

FIG. 45 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a twelfth embodiment.

FIG. 46 is an explanatory plan view of a floor forming body.

FIG. 47 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a thirteenth embodiment.

FIG. 48 is a plan view of a table.

FIG. 49 is a cross-sectional side view of a floor slab including a multipurpose space forming portion as a fourteenth embodiment.

50 is a view as viewed in the direction of the arrow Z in FIG. 49.

FIG. 51 is a perspective view of a laying body.

FIG. 52 is a cross-sectional side view of the laid body.

FIG. 53 is a plan view of a floor slab including a multipurpose space forming part according to a fifteenth embodiment.

FIG. 54 is a cross-sectional side view of the floor slab.

FIG. 55 is a plan view of the same floor slab (in a tatami storage state).

FIG. 56 is a cross-sectional side view of the same floor slab (in a tatami storage state).

FIG. 57 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a fifteenth embodiment.

FIG. 58 is an explanatory plan view of the same floor slab.

FIG. 59 is a cross-sectional side view of a floor slab including a multipurpose space forming part according to a sixteenth embodiment.

FIG. 60 is an explanatory plan view of the opening / closing lid;

FIG. 61 is a cross-sectional side view of a floor slab including a multipurpose space forming portion as a seventeenth embodiment.

FIG. 62 is a sectional side view of a tatami mat.

[Explanation of symbols]

 A apartment house S living space S1 multipurpose space 1 pillar 2 beam 3 outer wall 4 inner wall 5 floor slab 6 floor 7 living room 8 Japanese-style room 9 kitchen 17 water function room 18 multipurpose space forming part

Continuing from the front page (72) Inventor Mitsunobu Yoshinaga 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. Sato Benec Co., Ltd. (72) Inventor Tomomasa Fujino 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. Within Benec (72) Inventor Tomoyuki Yoshinami 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Inside Sato Benec Co., Ltd. (72) Inventor Shoji Honda 1-1-7-1 Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor Yuichiro Ishikawa 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor Masaki Kakehashi 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. 72) Inventor Tatsuo Fukuchi 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Sato Benec Co., Ltd. (72) Inventor Takehiko Ikebe 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Sato Benex Co., Ltd. (72) Inventor Kenji Fujiwara Oita, Oita 1-7-1 Maizuru-cho, Sato-Benec Co., Ltd. (72) Inventor Takahiro Ando 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. 1-7-1, Sato Benec Co., Ltd. (72) Inventor Susumu Ohno 1-7-1, Maizuru-cho, Oita City, Oita Pref. Co., Ltd. (72) Inventor Kenji Sato 1, Maizuru-cho, Oita City, Oita Prefecture No. 7-1 Co., Ltd. Sato Benec (72) Inventor Yuji Odamaki 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Co., Ltd. (72) Inventor Takanobu Hokatsu 1, Maizuru-cho, Oita-shi, Oita No. 7-1 Co., Ltd. Sato Benec (72) Inventor Tadashi Ichihara 1-7-1, Maizuru-cho, Oita City, Oita Pref. Co., Ltd. (72) Inventor Kozo Yamashita 1-7, Maizuru-cho, Oita City, Oita Prefecture No. 1 Stock Company Sato Benec (72) Akita Kentaro Mitarai 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Sato Benec Co., Ltd. (72) Inventor Kanji Kanda 1-7-1, Maizuru-cho, Oita City, Oita Pref. Sato Benex Co., Ltd. (72) Inventor Toshinobu Sato 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor Hideyuki Hirano 1-7-1, Maizuru-cho, Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor No Hiroyuki Shimo 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Sato Benec Co., Ltd. (72) Inventor Shigeho Noda 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. Co., Ltd. 1-7-1 Maizuru-cho, Oita City, Oita Prefecture Inside Sato Benec Co., Ltd. (72) Inventor Tomoyuki Kajimura 1-7-1 Maizuru-cho, Oita City, Oita Prefecture Co., Ltd. 1-7-1 Maizuru-cho, Oita-shi (72) Inventor Yukiya Sasaki 1-7-1, Maizuru-cho, Oita City, Oita Pref. Incorporated Sato Benec (72) Inventor Mayumi Sato 1-7-1, Maizuru-cho, Oita City, Oita Pref. In Benec (72) Inventor Tomoichi Nakamura 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor Junji Ogata 1-7-1 Maizuru-cho, Oita-shi, Oita Pref. (72) Inventor Naofumi Kihara 1-7-1, Maizuru-cho, Oita-shi, Oita Pref. Sato Benec Co., Ltd. (72) Inventor Keiichi Baba 1-7-1, Maizuru-cho, Oita-shi, Oita Pref.

Claims (8)

[Claims] 1. In an apartment house formed by dividing a floor slab into a plurality of stories, a part of each floor slab is swelled downward to form a concave multi-purpose space forming section in each floor slab. The underfloor structure of the apartment complex that is the feature. 2. The underfloor structure of an apartment house according to claim 1, wherein the living room is arranged in a room other than the downstairs room located immediately below the multipurpose space forming section. 3. A function room for water, such as a kitchen, a bathroom, a washroom, and a toilet, is disposed in a lower-floor room located immediately below the multipurpose space forming unit. Underfloor structure of apartment house. 4. The multipurpose space forming part formed on the floor slab of each level is alternately arranged for each floor so as to be staggered in the left-right direction. Underfloor structure of the described apartment house. 5. The underfloor structure of an apartment house according to claim 1, wherein the multipurpose space forming section is disposed immediately below the living room. 6. The multipurpose space forming section, wherein at least one end face is directly connected to the beam section.
6. The underfloor structure of an apartment house according to any one of the above items 5. 7. The underfloor structure of an apartment house according to claim 1, wherein a concave portion having a plurality of steps is formed in the multipurpose space forming portion. 8. A floor slab is formed by laying a pre-formed floor slab forming body between beams, and a multipurpose space forming part is formed in the floor slab forming body. 8. The underfloor structure of an apartment house according to any one of items 7.