JP2002115329A - Unit type building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit type building capable of constituting a barrier-free floor between an indoor floor and an outdoor floor and capable of reducing work at a building site. SOLUTION: In this unit type building 1 constituted by including a pair of vertically connected building units 33 and forming an outdoor floor surface 6 on two or more stories, a lower story side building unit 33 has a floor structure 33D for supporting the outdoor floor surface 6, an upper story side building unit 33 has a floor finishing constitutive body 33C including a waterproof structure 80 of the outdoor floor surface 6, and the outdoor floor surface 6 is constituted by vertically combining the floor structure 33D and the floor finishing constitutive body 33C. Since the lower story side building unit 33 has the floor structure 33D, the barrier-free floor can be easily formed by lowering a floor surface level of the outdoor floor surface 6. Since the upper story side building unit 33 has the floor finishing constitutive body 33C, rising waterproof processing is previously performed in a factory so that building site work can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit building having a pair of building units connected vertically and having an outdoor floor on two or more floors.

[0002]

2. Description of the Related Art Conventionally, unit-type buildings constructed by combining a plurality of rectangular parallelepiped building units manufactured in a factory at a building site have been used. Here, the building unit has a rectangular parallelepiped frame including pillars erected at the four corners, and beams connecting the upper ends of the pillars and the lower ends thereof.
At the factory, a ceiling surface material, a floor surface material, an outer wall material, and a partition wall are attached to the frame in advance, and these are transported to a construction site to construct a building. According to such a unit-type building, when a building unit is manufactured in a factory, the work conventionally performed at the building site is mostly performed at the factory, the work at the building site is significantly reduced, and high-quality The effect is that the building can be built in a short time.

Incidentally, even in the above-mentioned unit-type building, from the viewpoint of providing an easy-to-use housing for the physically handicapped or the like, a so-called barrier-free floor with a floor step as small as possible is adopted. −6368
As shown in No. 3, proposals have been made for forming an indoor floor without steps. And 2 of unit type building
There is a demand for a barrier-free floor in which a step between the two floors is eliminated also on a balcony floor formed as an outdoor floor above a floor and an indoor floor.

Here, in order to make the balcony floor barrier-free, the balcony floor is made of a two-layer structure including a waterproof floor and a walking floor so that rainwater that has poured onto the balcony floor does not enter the indoor floor. Therefore, the floor level of the balcony based on the waterproof floor must be lower than that of the conventional balcony. For this reason, what usually forms a balcony floor along with a building unit arranged on the upper floor side is formed into a building unit arranged on the lower floor side, thereby lowering the floor level. It is conceivable to form a vulcanized floor.

[0005]

However, the formation of a balcony floor in such a lower-floor building unit causes the edge between the balcony floor and the upper-floor building unit to be cut off. In order to form a waterproof structure that rises from the floor to a vertical surface such as the outer wall on the upper floor, the problem is that after connecting the building units on the upper and lower floors, the rising part must be waterproofed at the building site. There is.

It is an object of the present invention to provide a unit-type building in which a barrier-free floor can be formed between an indoor floor and an outdoor floor, and the work at a construction site can be reduced.

[0007]

In order to achieve the above-mentioned object, a unit-type building according to the present invention comprises a pair of building units 3 connected vertically, as described with reference to the drawings.
The unit building 1 includes the outdoor floor surface 6 on two or more floors, and the lower-floor building units 33 and 35 disposed on the lower floor portion include an upper surface portion thereof. And floor structures 33D and 35C for supporting the outdoor floor surface, and the upper-floor building units 33 and 3 disposed on the upper floor portion.
5 is provided with floor finishing components 33C and 35B including a waterproof structure 80 for the outdoor floor on the lower surface thereof, and the floor structure and the floor finishing component are vertically combined, so that the outdoor floor is It is characterized by comprising.

According to the present invention, the lower floor building unit is provided with the floor structure, and the upper floor building unit is provided with the floor finishing structure, so that the lower floor building unit supports the outdoor floor. As a result, the level of the outdoor floor can be reduced accordingly, and a barrier-free floor can be easily formed. Also,
Since the upper-floor building unit is equipped with a floor finishing structure including a waterproof structure, a waterproof structure that rises from the floor surface to a vertical surface such as an outer wall surface can be pre-constructed at the factory, and the rising waterproof treatment at the building site can be performed. Omitting, construction site work is greatly reduced.

In the above, the above-mentioned upper-floor building unit comprises a base 33A which bears the structure of the unit-type building,
It is preferable to include 35A and projecting surface portions 33C and 35B projecting horizontally from the side surface of the base portion, and it is preferable that the floor finishing component is constituted as the projecting surface portion. As described above, the upper floor building unit includes the base and the overhanging surface, and the floor finishing component is configured as the overhanging surface, so that the load acting on the unit can be exclusively borne by the base. The cross-sectional shape of the steel material of the frame constituting the overhanging surface can be reduced, which is advantageous in forming a barconi floor having a lowered level.

When the above-mentioned base has a frame of a three-dimensional structure including columns and beams, an outdoor side surface of the beam on which the overhanging surface of the upper-floor building unit projects is provided. Preferably, a receiving member for the fitting is provided. By providing the receiving member in this manner, the mounting level of a fitting such as an aluminum sash for an opening can be lowered, which is advantageous in forming a barrier-free floor without steps indoors and outdoors.

Further, in the above-mentioned floor finishing structure, a drain slope is formed by arranging floor materials, and a plurality of floor finishes are arranged above the drain slope with gaps. It is preferable to have a two-layer structure with a walking finish surface configured as described above. In this way, a plurality of floor finishing materials are arranged with a gap to form a walking finish surface, and a drain slope is formed below the floor finish material, so that all rainwater that has fallen on the balcony floor is drained. It flows down the slope and is discharged. Therefore, even if the outdoor floor and the indoor floor are barrier-free floors, rainwater does not enter the indoor floor.

[0012] In the above-mentioned floor finishing structure, it is preferable that the waterproof sheet laid along the floor surface rises up to the vertical plane of the building unit on the upper floor side. in this way,
By raising the waterproof sheet of the floor finish structure up to the vertical surface of the building unit, it is possible to easily perform waterproof treatment on the joint between the wall surface and the floor surface. The efficiency of unit production is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a unit-type building 1 according to an embodiment of the present invention.
Is the building body 3 installed on the concrete foundation 2
And a roof 4 formed on the upper part of the building body 3.

The roof 4 is configured as a land roof whose roof can be used as a space for drying clothes and the like, and is configured by arranging a plurality of flat roof panels 41 having a planar shape of building units 31, 33, and 35 described later. . Roof panel 41
Although not shown in the figure, a frame in which steel materials are combined according to the panel shape, and A mounted on the frame
And a face material such as LC.

At the center of the roof 4, a plurality of solar cell panels 42 are arranged on an inclined surface. The solar cell panel 42 has a field plate, a waterproof sheet, and a plurality of rails along an inclined surface mounted on a steel frame having a three-dimensional structure (not shown), and is mounted so as to straddle the plurality of rails. . In addition, the lower space of the inclined surface to which the solar cell panel 42 is attached can be used as a storage space and also has a role as a penthouse for ascending to the flat roof portion of the roof 4, and can enter and exit through the door 43. A handrail 44 is provided on the outer peripheral edge of the flat roof portion.

The building body 3 has a recess 5 in which a part of the outer wall surface 3B is recessed toward the indoor side from the other outer wall surface 3A, and has a living room space having a substantially concave shape in plan view. On the first floor portion of the concave portion 5, a dog running 21 made of concrete connected to the foundation 2 is formed, and on the second floor portion, a balcony floor 6 as an outdoor floor is formed. On the dog run 21, porch columns 51 are provided at a predetermined pitch.
Supports the tip of the balcony floor 6 on the second floor.

The outdoor end portion 6A of the balcony 6 is
A handrail 62 protrudes slightly outward from the other outer wall surface 3A, and is provided along the outer peripheral edge of the balcony floor 6. The upper part of the recess 5 is covered with a roof 4 having an edge formed along the outer wall surface 3A, and a porch column 61 is also formed on the balcony floor 6 at the same pitch as the porch column 51 on the first floor. The porch columns 61 are provided, and support the tip portion of the roof 4.

On the outer wall surface 3B of the recess 5, an opening 52 is formed on the first floor and an opening 63 is formed on the second floor for daylighting. It is formed in the entire width direction and has a height dimension that reaches near the lower surface side of the balcony floor 6 and near the lower surface side of the roof 4. Therefore, the outer wall surface 3 </ b> B of the concave portion 5 is configured as a wall surface excellent in daylighting performance, which is mostly constituted by the openings 52 and 63.

The building main body 3 having such a shape is composed of a normal cuboid-shaped building unit 31, an L-shaped unit 33 having a substantially L-shape in plan view, which constitutes the recess 5, and the building unit 3.
1 is formed by three-dimensionally combining the odd-shaped units 35 having different dimensions in the short side direction. The building unit 31 is, as shown in FIG.
The frame 311 includes columns 312 erected at four corners and upper beams 313 connecting the upper ends of the columns 312.
And a lower beam 314 connecting between lower ends of the columns 312. In this embodiment, a square steel pipe is used as the column 312 constituting the building unit 31, and the upper beam 31 is used.
3. As the lower beam 314, a channel steel having a U-shaped cross section with the opening side facing the indoor side is used.

A plurality of ceiling beams 315 are provided between a pair of upper beams 313 extending in the long side direction of the building unit 31.
And a ceiling material (not shown) is attached to the lower surface of the ceiling beam 315. A plurality of floor joists 3 are provided between a pair of lower beams 314 extending in the long side direction of the building unit 31.
A floor panel (not shown) is laid on the upper surface of the floor joist 316. Further, a partition wall or an outer wall material is attached to the building unit 31, or equipment such as a kitchen is attached to the unit type building 1 according to a floor plan or the like.

The L-shaped unit 33 basically has an L-shape in plan view in which one corner of a plane rectangle is cut off in a rectangular shape, and bears the structure of the building body 3 as shown in FIG. 33A, an extended portion 33B projecting from the side surface of the base 33A, a floor projecting portion 33C and a ceiling projecting portion 33D projecting horizontally from the floor portion and the ceiling portion of the L-shaped unit. Have.

The base 33A has a rectangular parallelepiped frame 331.
And pillars 332 erected at four corners, and beams 333 connecting the upper end and the lower end of each pillar 332,
The upper and lower beams 3 are provided at an intermediate portion of the base 33A to which B is connected.
Straddle 33, that is, the beam 333 wins and the intermediate pillar 3
34 are provided. An intermediate beam 334A is provided between the pair of long-side beams 333 in the portion where the intermediate column 334 is provided. And this base 33A
Is a portion that bears the structure of the building body 3, and therefore, as a material of the columns 332, 334 and the beams 333, a steel material having the same cross-sectional shape as the columns 312, beams 313, and 314 of the building unit 31 is adopted. I have. And this base 33A
A receiving member 33 for attaching an aluminum sash 631 to be described later is provided on the outer surface of the lower beam 333 facing the concave portion 5.
3A is provided.

The extension portion 33B has a box-shaped frame 335 provided along the short side surface of the base portion 33A so as to protrude from the long side surface. The frame 335 includes two horizontal erection members 336 extending along the short-side beam 333 of the base 33A and two vertically projecting side surfaces of the long-side beam 333 to which the intermediate column 334 is attached. A horizontal erection member 337, two horizontal erection members 338 for connecting the tip portions of the horizontal erection members 336 and 337, and two horizontal erection members 3
36, or a vertical erection member 339 for vertically connecting two horizontal erection members 337.

Here, since the internal space of the extension portion 33B is used as a space continuous with the living room space formed in the base portion 33A, the horizontal erection members 336, 337, 338 are provided.
As the material of the base member 33, a steel material having the same height dimension as the beam 333 of the base 33A is adopted. On the other hand, since the expanded portion 33B does not bear the basic structure of the building body 3, as the material of the vertical erection member 339, a steel material having a smaller cross-sectional shape than the column 332 of the base 33A is adopted. The cross-sectional shape is set according to the load of the vertically extending extension 33B.

Floor overhang 33C and ceiling overhang 33D
Is formed as a projecting surface portion protruding from a side surface facing the concave portion 5 of the base portion 33A, and the Balconi floor surface 6 is formed by vertically combining the L-shaped units 33.
As can be seen from FIG. 3, the ceiling overhang 33D is configured as a stronger frame than the floor overhang 33C, and the structural support of the balcony 6 is mainly provided by the ceiling overhang 33.
D bears.

The floor overhanging portion 33C is a portion constituting a floor finishing structure formed on the lower surface portion of the L-shaped unit 33, protrudes from the side surface of the extension portion 33B, and is formed of a horizontal erection member 338 of the extension portion 33B. A rectangular frame having a horizontal frame member 340 extending along the extending direction and a horizontal frame member 341 extending along the beam 333 in the short side direction of the base 33A and joined to the horizontal frame member 340 at the tip end. It is configured. Since the horizontal frame members 340 and 341 do not mainly bear the structure of the balcony floor 6 as described above, those having a smaller cross-sectional shape than the beam 333 of the base 33A are employed. When the L-shaped unit 33 is used in the first floor, the floor overhang 33C is buried in the concrete when the dog running 21 is poured into the concrete. On the other hand, when the L-shaped unit 33 is used on the second floor, the horizontal frame member 3
A floor finishing structure 80 to be described later is provided in a portion surrounded by 40 and 341.
Is formed.

The ceiling overhang 33D is a floor structure formed on the upper surface of the L-shaped unit 33, and the floor overhang 33C
Are formed in a plane shape substantially similar to the plane shape of. Like the floor overhang 33C, the ceiling overhang 33D includes horizontal frame members 342 and 343 forming an outer peripheral frame. Inside the horizontal overhang, a horizontal frame member 343 and a horizontal erection member 3 of the extension 33B are provided.
37, an intermediate erection member 344 is provided.

A plurality of steel beams 345 are erected between the intermediate erection member 344 and the horizontal frame member 342.
Are provided with a plurality of brackets 346 that support the balcony expanding portion 73 of the cantilever support structure that constitutes the outdoor end portion 6A. On the other hand, the intermediate erection material 344 and the base 33A
The space between the upper beams 333 is a shutter storage space 34 </ b> A in which a shutter 71 described later is stored, and the lower surface thereof is covered with the eave heaven material 72.

Since such a ceiling projection 33D must structurally support the balcony floor 6, the horizontal frame members 342 and 343 are made of a beam 3 of the base 33A.
A steel material having a cross section similar to that of 33 is used. Steel beam 3
The cross-sectional shape of 45 and the number of
It is set appropriately based on the weight of the balcony expansion portion 73 (described later) attached to the.

The horizontal frame member 34 of the above-mentioned floor overhang 33C.
0 and a horizontal frame member 343 of the ceiling overhanging portion 33D, a vertical member 347 extending vertically is provided. The vertical member 347 is connected to a vertical member 361 (described later) provided in the adjacent deformed unit 35. The porch column 51 is provided in an upright position at the tip of the recess 5 in combination. In addition, the structural burden of the covering part of the balcony 6 and the roof 4 is mainly L
The vertical member 347 is a supplementary member for supporting the balcony floor 6 and the like, and therefore has a cross-sectional shape of the column 312 constituting the base 33A, since the vertical member 347 is formed at the ceiling projection 33D of the shaped unit 33. It is smaller than the shape.

The deformed unit 35 has a base 35A having the same short-side dimension as that of the base 33A of the L-shaped unit 33 described above, and a concave portion 5 of the base 35A.
A floor overhang 35B and a ceiling overhang 35C protruding from the side surface facing the, and like the L-shaped unit 33, the floor overhang 35B and the ceiling overhang 35C are configured as an overhang surface. Have been.

The base 35A has a rectangular parallelepiped frame 351 in which a column 352 and a beam 353 are combined.
As the material of the beam 353, the base 33 of the L-shaped unit 33 is used.
A column and a beam member similar to A are adopted, and on the outer side surface of the lower beam 333 facing the concave portion 5, like the L-shaped unit 33,
Receiving member 353 for attaching aluminum sash 631
A is provided.

The floor overhang 35B and the ceiling overhang 35C
The L-shaped unit 33 has a floor overhang 33C and a ceiling overhang 3
It is made of substantially the same structure and material as 3D,
5B is a floor finishing structure provided with horizontal frame members 354 and 355. Like the L-shaped unit 33, the ceiling overhang portion 35C is a floor structure that is formed to protrude from the side surface of the base 351 on the side of the concave portion 5 of the frame 351.

The ceiling overhang 35C is an L-shaped unit 3
3, the horizontal frame members 356 and 357,
58, a steel beam 359, and a bracket 360, and two vertical members 361 are erected at the widthwise ends between the floor overhang 35B and the ceiling overhang 35C. , The vertical member 347 of the L-shaped unit 33.

By combining the L-shaped unit 33 and the odd-shaped unit 35 vertically, the overhanging portions 33D, 35C of the lower-floor building units 33, 35 are provided.
And the floor overhanging portion 33C of the upper floor building units 33, 35,
35B are combined to form the balcony floor 6. That is, as shown in FIG. 5, the floor overhanging portion 33C of the L-shaped unit 33 on the upper floor side is installed on the ceiling overhanging portion 33D of the L-shaped unit 33 arranged on the lower floor side, and the balcony floor 6 Is configured.

The ceiling projection 33D has a shutter 71 installed in the above-mentioned shutter storage space 34A. The shutter 71 is provided on the upper beam 33 of the base 33A of the L-shaped unit 33.
3 and is not shown in FIG. 5, but is used as a shutter that covers an opening 52 (see FIG. 1) on the first floor formed below the shutter. In addition, a balcony expansion portion 73 is joined to the bracket 346 at the outdoor end of the ceiling projection 33D. The width dimension of the balcony expanding portion 73 is substantially the same as the width of the L-shaped unit 33 and the odd-shaped unit 35, and a handrail 62 is provided upright at the outdoor end (see FIG. 1).

Further, on the receiving member 333A of the L-shaped unit 33 on the upper floor, an aluminum sash 631 constituting the opening 63 on the second floor is attached. As can be seen from FIG. 5, the upper end of the receiving member 333A is in a state of being stepped down from the upper surface of the beam 333.
The upper end of the rail of the aluminum sash 631 attached to the 33A is housed so as not to protrude beyond the surface of the indoor flooring material 33F laid inside the living room of the L-shaped unit 33, and the step inside and outside the room of the L-shaped unit 33 The barrier-free floor has been realized.

The horizontal frame member 34 of the floor overhang 33C described above.
A floor finishing structure 80 is formed in the frames 2 and 343. The floor finishing structure 80 includes a drain portion 81 and a walking portion 85.
It has a layer structure. The drainage part 81 includes a rainwater drainage groove 82 extending along the longitudinal direction of the balcony floor 6, and a first drainage slope 83 formed with a downward slope from the base 33 </ b> A of the L-shaped unit 33 toward the side groove 82. And a second drain gradient surface 84 formed with a downward gradient from the tip end side of the balcony expansion portion 73 toward the side groove 82.

The side groove 82 is formed of a long metal member having a concave cross section, and is arranged so as to be inclined downward in the longitudinal direction (the depth direction in FIG. 5) of the balcony floor 6. The end of the side groove 82 is connected to a downspout (not shown) attached to the outer wall surface 3A of the building body 3.

The first drainage gradient surface 83 includes a floor surface material 831 that forms the gradient surface, a waterproof sheet 832 that covers the upper surface of the floor surface material 831, the floor surface material 831 and the floor overhang 33.
C between the horizontal frame members 342 and 343,
And a spacer 833 for arranging the tilt 31. The floor surface material 831 is made of a board such as a hard wood chip cement board, has a length dimension up to the receiving member 333A and the side groove 82, and is laid over the entire width direction (the depth direction of the paper) of the floor overhang 33C. It is fixed to the horizontal frame members 342 and 343 by tapping screws or the like.

The waterproof sheet 832 is attached to the upper surface of the floor panel 831, and the boundary between the sheets is formed by the waterproof sheet 83.
Two are superimposed and pasted. Also, the upstream end of the slope of the waterproof sheet 832 rises to the vertical plane of the board 333B attached to the receiving member 333A, and the downstream end reaches the vertical plane inside the side groove 82. Is coated. The spacer 833 is formed by stacking a plurality of metal plates, is fixed to the horizontal frame members 342, 343 with an adhesive or the like, and determines the number of stacked metal plates according to the gradient of the first drainage gradient surface 83. Is done.

The second drain slope 84 is also formed of substantially the same member as the first drain slope 83, and includes a floor surface member 841, a waterproof sheet 842, and a spacer 843. This second drain slope 84 is provided with the balcony expanding portion 7.
3, the upstream end of the slope of the waterproof sheet 842 rises up to the vertical surface of the base on which the handrail 62 is mounted.

The walking section 85 is provided below the floor finishing material 851 as a walking surface and a predetermined distance between the floor finishing material 851 and the drainage section 81.
1 and a support member 852 that supports the first support member 1. The floor finishing material 851 is a wood-grained floor finishing material mainly composed of wood flour fine particles and a thermoplastic resin, and has a long plate shape extending in the projecting direction of the balcony floor 6. Support material 852
Is formed of a steel material extending in the width direction of the balcony floor 6, and its end is fixedly joined to a horizontal frame member 341 constituting the floor overhang 33C by a bolt, a nut, or the like.

The floor finishing material 851 described above has a receiving member 333 having an indoor side end provided on the L-shaped unit 33.
A, the supporting member 852, and the pedestal for attaching the handrail 62 of the balcony expanding portion 73 are used as supporting surfaces and are supported in a state of floating from the drainage portion 81. A plurality of such floor finishing materials 851 are arranged with a gap in the width direction of the balcony floor 6, and the walking portion 85 is provided.
And the level of the walking section 85 is the L-shaped unit 33
Is set to a level substantially the same as the finished surface of the floor material 33F in the living room. The floor finishing structure 80 in the overhang portion 33C of the L-shaped unit 33 as described above is similarly applied to the inside of the overhang portion 35B of the odd-shaped unit 35.

Next, the procedure of assembling the balcony floor 6 when constructing such a unit building 1 will be described. (1) At the factory, after assembling the frames of the L-shaped unit 33 and the odd-shaped unit 35, the building unit 33,
The wall material and the floor material of the room portion 35 are attached, and the side groove 82 and the floor material 831 are attached to the floor overhang 33C. (2) Paste the waterproof sheet 832 on the floor surface material 831,
After the living room end is raised to the vertical surface of the receiving member 333A and further turned to the upper surface of the receiving member 333A, the aluminum sash 631 is mounted on the receiving member 333A.

(3) The L-shaped unit 33 and the deformed unit 35 are carried into the construction site by a transportation means such as a truck, and these units 33 and 35 are transported together with the building unit 31.
Is placed at a predetermined position on the foundation 2 by a hoisting machine or the like. (4) When the L-shaped unit 33 and the odd-shaped unit 35 are arranged vertically, respectively, the ceiling overhanging parts 33D, 35 on the lower floor side
C and the floor overhanging portions 33C and 35B on the upper floor side are joined with bolts, nuts, and the like, and the floor structure and the floor finishing component are connected.

(5) Connect the balcony expansion section 73 with a crane
Lifting to the floor portion, the balcony expansion portion 73 is joined and fixed to the tips of the ceiling overhanging portions 33D and 35C. (6) Horizontal frame member 3 constituting floor overhanging portions 33C and 35B
41, 355 using bolts, nuts, etc.
Are fixed, and a plurality of floor finishing materials 851 are arranged in the width direction of the balcony floor 6 with a gap provided.

According to the above-described embodiment, the following effects can be obtained. The L-shaped unit 33 on the lower floor side is provided with an overhang portion 33D serving as a floor structure, and the L-shaped unit 3 on the upper floor side is provided.
3 is provided with a floor overhanging portion 33C serving as a floor finishing structure, so that the lower floor side L-shaped unit 33 supports the balcony floor 6, so that the level of the balcony floor 6 can be reduced accordingly. Thus, it becomes easy to form a barrier-free floor in which a step with the finished surface of the indoor floor material 33F is eliminated.

Further, the L-shaped unit 33 on the upper floor side has a floor overhang 33C constituting a floor structure, and this floor overhang 33
Since a drainage portion 81 having a waterproof structure is formed in C,
A waterproof structure that rises from the floor surface material 831 to the vertical surface of the receiving member 333A can be pre-constructed at the factory. Therefore, we omit the waterproofing treatment at the construction site,
Construction site work is greatly reduced.

Further, the L-shaped unit 33 has a base portion 33A and a floor overhanging portion 33C, and the drainage portion 81 has the floor overhanging portion 3C.
Since the load acting on the building unit 33 can be exclusively borne by the base 33A by being formed in the 3C, the cross-sectional shape of the horizontal frame members 340, 341 of the floor overhang 33C can be reduced, This is advantageous in forming a balconi floor 6 with a reduced level.

Since the receiving member 333A is provided on the outer side surface of the lower beam 333 of the L-shaped unit 33, the aluminum sash 631 can be mounted in a state where it is stepped down from the upper surface of the beam 333 of the L-shaped unit 33. Therefore, the configuration can be such that the upper end of the rail of the sash does not protrude from the surface of the indoor floor material 33F, which is advantageous in forming a barrier-free floor.

The floor finishing member has a two-layer structure including a drain portion 81 and a walking portion 85.
1 is provided with a gap, and the rainwater that has poured down on the balcony floor 6 is appropriately drained from the gap between the floor finishing materials 851 through the drainage portion 81, so that a step between the balcony floor 6 and the indoor floor is provided. Even if it is eliminated, it is possible to prevent rainwater from entering the indoor floor.

Further, the drainage part 8 constituting the floor finishing structure
Since the first waterproof sheet 832 rises up to the vertical surface of the receiving member 333A, it is possible to easily perform the waterproof treatment of the joint between the wall surface and the floor surface, and to simplify the waterproof treatment to manufacture the L-shaped unit 33. Efficiency is improved. Such an effect can be enjoyed in the odd-shaped unit 35 as well.

Note that the present invention is not limited to the above-described embodiment, but includes the following modifications. In the above embodiment, the L-shaped units 33 are vertically combined with the deformed units 35, but the present invention is not limited to this. That is, the present invention may be applied to a case where building units having different shapes are vertically connected. For example, an ordinary building unit 31 shown in FIG. 2 is arranged on the lower floor side, and a deformed unit 35 shown in FIG. 4 is arranged on the upper floor side, and the upper surface of the building unit 31 is used as a floor structure. It may be configured. That is, the present invention may be applied to a shelter barconi in which a barconi is formed on the upper surface of a building unit constituting a shelter.

In the above-described embodiment, the shutter storage space 34A is formed in the ceiling overhanging portion 33D which is a floor structure. However, the present invention is applied to a structure without such a shutter storage space 34A. May be. Furthermore, in the above-described embodiment, the balcony expanding portion 73 is joined to the ceiling overhanging portion 33D by cantilever support. However, the present invention is applied to a case where such a cantilever supporting structure is not connected. Is also good. In addition, specific structures, shapes, and the like at the time of carrying out the present invention may be other structures and the like as long as the object of the present invention can be achieved.

[0056]

According to the first aspect of the present invention, the lower-floor building unit is provided with a floor structure, and the upper-floor building unit is provided with a floor finishing structure. Is supported, the level of the outdoor floor surface can be reduced accordingly, and there is an effect that a barrier-free floor can be easily formed. In addition, since the upper-floor building unit is provided with a floor finishing structure including a waterproof structure, a waterproof structure that rises from the floor surface to the wall surface can be pre-constructed at the factory,
There is an effect that the construction site work is greatly reduced by omitting the rising waterproofing process at the construction site.

According to the second aspect of the present invention, the upper-floor-side building unit includes the base and the overhanging surface, and the floor finishing structure is configured as the overhanging surface, so that the load acting on the unit is exclusively used. Because it can be borne at the base,
The cross-sectional shape of the steel material of the frame constituting the overhanging surface portion can be reduced, which is advantageous in forming a reduced-level barconi floor surface.

According to the third aspect of the present invention, since the receiving member is provided, the mounting level of the fitting such as the aluminum sash for the opening can be lowered, so that the barrier-free floor having no steps inside and outside the room can be provided. It is advantageous in forming
This has the effect. According to the invention as set forth in claim 4, a plurality of floor finishing materials are arranged with a gap therebetween to form a walking finishing surface, and a drainage slope is formed below the finishing surface, so that the floor finishing material is poured onto the balcony floor. Since all rainwater flows down to the drain slope and is discharged, there is an effect that rainwater does not enter the indoor floor even if the outdoor floor and the indoor floor are barrier-free floors.

According to the fifth aspect of the present invention, the waterproof finish can be easily performed on the joint between the wall surface and the floor surface by raising the waterproof sheet to the vertical surface of the building unit. In addition, there is an effect that the efficiency of manufacturing the building unit in the factory can be improved by simplifying the waterproofing process.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a unit-type building according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view illustrating a structure of a building unit in the embodiment.

FIG. 3 is a schematic perspective view illustrating a structure of an L-shaped unit in the embodiment.

FIG. 4 is a schematic perspective view showing a structure of a modified unit in the embodiment.

FIG. 5 is a vertical sectional view showing a structure in which the L-shaped units in the embodiment are vertically combined.

[Explanation of symbols]

1 Unit-type building 6 Balconi floor (outdoor floor) 33, 35 L-shaped unit, odd-shaped unit (upper floor, lower floor building unit) 33C Floor overhang (floor finish structure, overhang) 33D ceiling Overhanging part (floor structure, overhanging surface part) 80 Floor finishing structure (waterproof structure) 81 Drainage part (drainage slope) 85 Walking part (walking finish surface) 333A Receiving member 832 Waterproof sheet

Claims (5)

[Claims] 1. A unit-type building comprising a pair of building units connected up and down and having an outdoor floor surface formed on two or more floors, wherein the lower-floor building is disposed on a lower floor portion. The unit has a floor structure supporting the outdoor floor surface on an upper surface portion thereof, and the upper floor building unit disposed on an upper floor portion has a floor finishing structure including a waterproof structure of the outdoor floor surface on a lower surface portion thereof. A unit-type building comprising a body, wherein the floor structure and the floor finishing component are vertically combined to form the outdoor floor surface. 2. The unit-type building according to claim 1, wherein the upper-floor building unit has a base that bears the structure of the unit-type building, and a projecting surface that projects horizontally from a side surface of the base. And the floor finishing structure is configured as the overhanging surface portion. 3. The unit-type building according to claim 2, wherein the base has a frame having a three-dimensional structure including pillars and beams, and the beam on which the overhanging surface of the upper-floor building unit protrudes. A unit-type building, wherein a receiving member for an opening fitting is provided on an outdoor side surface of the building. 4. The unit-type building according to claim 3, wherein the floor finishing structure includes a drain slope formed by arranging flooring materials and a plurality of drain slopes formed above the drain slope. A unit-type building having a two-layer structure including a walking finishing surface configured by arranging floor finishing materials with a gap therebetween. 5. The unit-type building according to claim 1, wherein the floor finish structure is a waterproof sheet laid along a floor surface, wherein the waterproof sheet is a vertical surface of the upper floor building unit. Unit-type building characterized by standing up to.