JP5202925B2 - Unit building - Google Patents

Description

  The present invention relates to a unit building that includes a building unit and an attached structure that is attached to an outer surface of the building unit and expands a living space.

In Patent Document 1 below, there is a technology that allows a wide living space to be obtained by joining an overhang unit composed of a ceiling frame, a floor frame, and two pillars to the side surface of the box-shaped building unit on the wife side. It is disclosed.
Japanese Patent Laid-Open No. 5-209441

  However, in the case of the prior art disclosed in Patent Document 1, since the load on the ceiling frame is supported only by the floor frame, a column is required as a load transmission member (upper structure support member). For this reason, there are two pillars in the overhang unit, and an open space without any pillars on the outer wall surface (hereinafter referred to as “wide view”, referring to such a space) may be obtained. Absent. Today's consumer needs are diversifying, and there are many voices seeking such an open space without pillars on the outer wall surface. Therefore, the above prior art has room for improvement in this respect.

  An object of the present invention is to obtain a unit building in which an open space without columns on the outer wall surface is obtained in consideration of the above facts.

The invention of claim 1 comprises a building unit configured to include a ceiling beam, a floor beam, and a plurality of pillars, and is configured to be attached to an outer surface of the building unit and includes a ceiling portion and a floor portion, and An accessory structure that expands the living space of the building unit, wherein the ceiling portion of the accessory structure extends from the vicinity of the ceiling beam of the building unit, and the ceiling beam and the building. It is attached to at least one of the columns of the unit in a cantilevered state, and the floor portion of the attached structure is extended from the vicinity of the floor beam of the building unit and is cantilevered to at least one of the floor beam and the column of the building unit. By mounting in a state, the floor portion is not subjected to the load on the ceiling, and the outermost ceiling portion of the accessory structure is assembled on the upper portion of the main body portion of the unit building. An extended roof panel is attached to extend the main roof panel to be attached, and a first building unit of normal size and a second half size of the second half unit arranged adjacent to each other and connected to each other on the side of the spar. A building unit group is formed by the building unit , and the attached structure is attached across the first building unit and the second building unit constituting the building unit group. It is characterized by that.

According to a second aspect of the present invention, in the unit building according to the first aspect, the first building unit and the second building unit include three columns erected at three corners and upper ends of these columns. It is characterized by including the ceiling frame joined between the parts, and the floor frame joined between the lower ends of these pillars .

The invention according to claim 3 is the unit building according to claim 1 or 2 , wherein the extended roof panel is connected to the eaves side of the main body roof panel at the same inclination angle. .

  According to a fourth aspect of the present invention, in the unit building according to the third aspect, the extended roof panel is continuously arranged on the main body roof panel to form a one-surface roof with the main body roof panel. .

  According to a fifth aspect of the present invention, in the unit building according to any one of the first to fourth aspects, the accessory structure is assembled in advance in a factory and attached to the outer surface of the building unit. Features.

  A sixth aspect of the present invention is the unit building according to any one of the first to fifth aspects, wherein the unit building is a plurality of box shapes that are arranged adjacent to each other so that their girder faces are parallel to each other. The building unit group is composed of the building units, and the attached structure is attached to the end face side of the building unit group.

  A seventh aspect of the present invention is the unit building according to the sixth aspect, characterized in that a pillar omission part in which two adjacent pillars are eliminated is provided on the side face of the building unit group.

  According to an eighth aspect of the present invention, in the unit building according to the seventh aspect, between the adjacent ceiling beams located on the pillar omitted portion on the side surface of the building unit group, a reinforcing beam for connecting both the ceiling beams is provided. It is characterized by that.

  A ninth aspect of the present invention is the unit building according to the seventh or eighth aspect, characterized in that a temporary column that is removable in a factory is attached to the column omitted portion in advance.

  According to a tenth aspect of the present invention, in the unit building according to the eighth aspect, the accessory structure includes a ceiling portion for each building unit of the building unit group, and the accessory structure is arranged adjacent to the ceiling. In this case, the ceiling structural members adjacent to each other at the column omission portion are connected by the reinforcing beam.

  According to the first aspect of the present invention, the attached structure configured to include the ceiling portion and the floor portion is attached to the outer surface of the building unit. Thereby, the living space of a building unit is expanded.

Here, in the present invention, the ceiling portion of the attached structure is extended from the vicinity of the ceiling beam of the building unit and attached to at least one of the ceiling beam and the column of the building unit in a cantilevered state, and the floor of the attached structure is provided. By extending the part from the vicinity of the floor beam of the building unit and attaching it to at least one of the floor beam and the column of the building unit in a cantilevered state, the load on the ceiling part is not imposed on the floor part. That is, since the structure different from the conventional structure which supports the load of the ceiling portion with the floor portion is adopted, the pillar outside the building of the attached structure which has been necessary in the past can be eliminated.
Moreover, according to this invention, the main body roof panel assembled | attached to the upper part of the main-body part of the said unit building is extended to the outermost part of the ceiling part of the attached structure in the unit building of Claim 1 or Claim 2. Since the extended roof panel is attached, it is not necessary to make the main body roof panel of the main part of the unit building special only at the installation location of the attached structure.

  According to the fourth aspect of the present invention, since the extended roof panel is arranged continuously with the main body roof panel to form a single roof with the main body roof panel, the exterior design of the roof originally provided in the unit building is provided. The living space can be expanded and a wide view can be obtained without impairing the sense of unity.

  According to the present invention described in claim 5, since the attached structure is assembled in advance in the factory and attached to the outer surface of the building unit, the building unit and the attached structure attached to the building unit are constructed in one transport. It has an excellent effect that it can be transported to the ground.

  According to the present invention described in claim 6, the unit building has a building unit group composed of a plurality of box-shaped building units arranged adjacent to each other so that the girder faces are parallel to each other. Since the attachment structure is attached to the side of the face of the attachment, it is possible to make the attachment structure structurally fit.

  According to the seventh aspect of the present invention, since the column omission part in which the two adjacent columns are eliminated is provided on the side face of the building unit group, the column is provided at the boundary between the building unit group and the attached structure. A continuous large space where no exists (no obstacles) is obtained.

  According to the eighth aspect of the present invention, since the reinforcing beam for connecting both ceiling beams is provided between the adjacent ceiling beams located in the column omitted portion on the side face of the building unit group, the column omitted portion is sufficiently provided. Can be reinforced.

  According to the ninth aspect of the present invention, since the column omission part is preliminarily attached with a temporary column that can be attached and detached in the factory, the building unit is used during transportation from the factory to the building site and when installing the unit in the building site. There is no risk of deformation.

  According to the tenth aspect of the present invention, the attached structure includes a ceiling portion for each building unit of the building unit group, and when the attached structure is disposed adjacently, the attached structure is provided with a column omitted portion. Since the adjacent ceiling structural members are connected by the reinforcing beams, the rigidity of the ceiling portion as the frame surface can be increased.

The unit building according to the first aspect of the present invention has an excellent effect that an open space without columns on the outer wall surface is obtained.
In addition, the unit building according to the first aspect of the present invention has an excellent effect that the productivity of the unit building can be favorably maintained while the attached structure is installed.

  The unit building according to the present invention described in claim 4 can make the exterior design of the roof of the entire building including the ancillary structure neat while fully exhibiting the functionality of the ancillary structure. Has an excellent effect.

  The unit building according to the present invention described in claim 5 has an excellent effect that it can increase the transportation efficiency of the building unit and contribute to shortening the construction period.

  The unit building according to the present invention described in claim 6 has an excellent effect that a unit building having a good balance as a whole can be obtained by attaching the attached structure to the end face side of the building unit group.

  The unit building according to the seventh aspect of the present invention has an excellent effect that an open unit building excellent in living property can be obtained.

  The unit building according to the present invention according to claim 8 has an excellent effect that it is possible to achieve both securement of an open large space excellent in comfortability and sufficient securing of strength and rigidity as a structure. .

  The unit building according to the present invention described in claim 9 has an excellent effect that the transportability and installation property of the building unit constituting the unit building can be improved.

  The unit building according to the tenth aspect of the present invention has an excellent effect of being able to improve the deformation resistance against the seismic load and wind load of the attached structure.

  Hereinafter, some embodiments of a unit building according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view showing a part of a unit building according to the present embodiment. FIG. 2 is a perspective view showing a state where a roof is arranged in the unit building of FIG.

  As shown in these drawings, the unit building 10 includes a unit building main body 12 configured by connecting a plurality of box-shaped building units 16 and 18 vertically and horizontally, and the unit building main body 12. And an overhanging portion 14 as an attached structure attached to the side surface on the outdoor side.

Specifically, in the one shown in FIG. 1 , a normal-sized building unit (main unit) 16 as a first building unit and an arrangement of a docking plate and the like that are arranged adjacent to the side of the beam face are shown. One building unit group 20 is formed by half-sized building units (half units) 18 as second building units connected to each other by a connecting means that does not. The building unit group 20 constitutes a part of the unit building body 12.

  The building unit 16 includes three pillars 22 erected at three corners, a ceiling frame 24 joined between the upper ends of these pillars 22, and a floor joined between the lower ends of these pillars. And a frame 26. The ceiling frame 24 includes two types of long and short ceiling beams 28 and 30 and a plurality of ceiling beams 32 provided at a predetermined interval between the pair of ceiling beams 28 arranged on the long side. Note that a ceiling panel (not shown) is attached to the ceiling frame 24 to constitute a ceiling panel. Similarly, the floor frame 26 is composed of two types of long and short floor beams 34 and 36 and a plurality of floor beams 38 provided at predetermined intervals between the pair of floor beams 34 arranged on the long side. Yes. A floor panel is configured by attaching a floor material (not shown) to the floor frame 26.

  The building unit 18 is also configured in the same manner as the building unit 16 except that the size is half, and includes three pillars 40, a ceiling frame 42, and a floor frame 44. The ceiling frame 40 includes two types of long and short ceiling beams 46 and 48 and a ceiling beam 50, and the floor frame 44 also includes two types of long and short floor beams 52 and 54 and a floor beam 56. It consists of

  The building unit 16 and the building unit 18 described above are arranged adjacent to each other so that portions without columns are adjacent to each other, and this portion is a column omitting portion 58. It should be noted that the temporary column 60 is detachably attached to the column omitting portion 58 at the time of shipment from the factory, and is removed when the installation of the building units 16 and 18 is completed in the building site. ing.

  In addition, a reinforcing beam 62 is laid across the column omission portion 58 between the above-described ceiling large beam 30 on the outer wall side in the building unit 16 and the ceiling large beam 48 on the outer wall side in the building unit 18. Thereby, the unit connection state of the column omission part 58 is reinforced, and one continuous wide living space 64 is formed in the building unit group 20. The reinforcing beam 62 is made of steel having the same cross-sectional shape as the ceiling beam 28 and the like, and is fixed to the ceiling beam 30, 48 via brackets (not shown) provided at predetermined intervals on the ceiling beam 30, 48. It is like that.

  On the other hand, the subunit 66 that constitutes the overhanging portion 14 includes a ceiling portion (ceiling subframe) 68 and a floor portion (floor subframe) 70 as main portions. The ceiling portion 68 is arranged on the extended line of the ceiling girder 28 arranged on the long side of the building unit 16 that is the main unit and the ceiling girder 46 on the long side of the building unit 18 that is the sub unit, in plan view. A pair of ceiling cantilever beams 72 and a ceiling frame eaves beam 74 that connects the end portions of these ceiling cantilever beams 72 are configured in a U shape in plan view. The base end portion of each ceiling cantilever 72 is rigidly joined to the upper end portions of the columns 22 and 40 by welding.

  In addition, the floor portion 70 is, in plan view, on an extension line of the floor beam 34 arranged on the long side of the building unit 16 that is the main unit and the floor beam 52 on the long side of the building unit 18 that is the half unit. A pair of floor cantilever beams 76 and a floor frame eaves beam 78 connecting the tip portions of the pair of floor cantilever beams 76 are configured in a U shape in plan view. Further, a plurality of other floor cantilevers 80 are arranged at predetermined intervals between the floor frame eaves beam 78 and the two large floor beams 36 and 54 that are arranged to face each other. The base end portions of the floor cantilevers 76 and 80 are rigidly joined to the lower end portions of the columns 22 and 40 by welding.

  Supplementally, the column on the outer wall side is not disposed on the overhanging portion 14, so that the ceiling portion 68 is cantilevered on the ceiling frame 24 side and the floor portion 70 is cantilevered on the floor frame 26 side. That is, the load of the ceiling portion 68 and the roof portion 84 described later is not transmitted to the floor portion 70. Thereby, the living space 82 in the building unit 18 is mutually communicated with the living space 64 of the building unit group 20, and a wider space is obtained. In the embodiment shown in FIG. 1, the base ends of the pair of ceiling cantilevers 72 are rigidly joined to the side surfaces of the upper ends of the columns 22 and 40. You may take the structure rigidly joined to the upper end part side surface of the short pillar as a part. In this case, the column is divided into three parts, and the upper end is incorporated into the ceiling frame as a short column as a ceiling joint, and the lower end is incorporated into the floor frame as a short column as a floor joint.

  Further, a loose hole or the like is formed in the joint so that the wall load of the subunit 66 described above is not borne by the ceiling beams 30 and 48.

  As shown in FIG. 2, a main body roof panel 86 constituting most of the roof portion 84 is installed on the upper part of the unit building main body 12 described above. The eaves 86 </ b> A of the main body roof panel 86 extends beyond the building unit group 20 to the middle of the subunit 66. An extended roof panel 88 having a length about half that of the ceiling cantilever 72 is installed on the upper portion of the sub-unit 66. The inclination angle of the roof surface of the extended roof panel 88 matches the inclination angle of the roof surface of the main body roof panel 86. Accordingly, when the extended roof panel 88 is connected to the eaves side of the main body roof panel 86, a single flat continuous surface is formed.

(Action / Effect)
Next, the operation and effect of this embodiment will be described.

  First, the required number of building units 16, 18, sub-units 66, etc. are produced in the factory in advance. At this time, temporary columns 22 are installed in the building units 16 and 18. Further, when the subunit 66 does not straddle the plurality of building units 16 and 18 as in this embodiment, the subunit 66 is assembled in advance to the building unit 16 or the building unit 18. In this way, the vehicle is transported from the factory to the building site by a transportation vehicle. In the building area, the transported building units 16, 18 and the like are sequentially installed left and right and up and down using a crane. At this point, the temporary column 22 has not yet been removed.

  In the case of the example shown in FIG. 1, at the stage when the building unit group 20 is constructed, the reinforcing beam 62 is fixed to the ceiling beams 30 and 48 on the outer wall surface side, and the portion that becomes the column omitted portion 58 is reinforced. Next, the ceiling part 68 and the floor part 70 which comprise the subunit 66 are attached to the outer wall surface side of the building unit group 20 which is the unit building main body 12. FIG. Specifically, the base end portions of the pair of ceiling cantilevers 72 of the ceiling portion 68 in the subunit 66 previously assembled in a U shape in plan view are rigidly joined to the upper end portions of the columns 22 and 40 by welding. The Next, the base end portions of the pair of floor cantilevers 76 and the plurality of floor cantilevers 80 of the sub-unit 66 previously assembled in a comb shape in plan view are welded to the lower ends of the columns 22 and 40. Are rigidly joined. Finally, the temporary pillar 22 is removed to form the pillar omitted portion 58.

  Thereafter, the main body roof panel 86 of the roof portion 84 is installed on the unit building main body 12 and the extended roof panel 88 is installed on the subunit 66. Further, the entire surface of the subunit 66 is fitted with glass or the like to be finished.

  As described above, the wide living space 64 in the building unit group 20 and the living space 82 in the sub-unit 66 are united to form a wider open living space. Moreover, in the overhang | projection part 14, the wide view in which a visual field is not obstruct | occluded with a pillar is obtained.

  In addition, said assembly procedure is an example to the last, and it is not restricted to this, You may construct the unit building 10 by another procedure.

  Thus, in this embodiment, the subunit 66 which comprises the overhang | projection part 14 is comprised only by the ceiling part 68 and the floor part 70, These building parts 16 and 18 are made into the cantilever support state with these ceiling parts 68 and the floor part 70. Since it is rigidly joined to the upper ends of the columns 22 and 40, it is necessary to provide a column on the outer wall surface side of the overhanging portion 14 and transmit the load of the ceiling portion 68 and the roof portion above it to the floor portion 70 as in the prior art. Absent. That is, since it is not necessary to load the floor portion 70 with the load of the ceiling portion 68 and the roof portion, the column on the outer wall surface side of the overhang portion 14 can be eliminated. As a result, an open space without columns on the outer wall surface of the overhanging portion 14 is obtained.

  In addition, since the extended roof panel 88 is arranged on the outermost side of the ceiling portion 68 of the sub-unit 66 and connected to the eaves of the main body roof panel 86 installed on the upper part of the unit building body 12, the unit building 10 There is no need to make the main body roof panel 86 of the unit building main body 12 special only at the place where the overhanging portion 14 is installed. For this reason, productivity of the unit building 10 can be maintained satisfactorily while the overhanging portion 14 is installed.

  Furthermore, since the extended roof panel 88 is arranged continuously with the main body roof panel 86 and forms a one-side roof with the main body roof panel 86, the exterior design (integral feeling) of the roof that the unit building 10 originally has is provided. The living space can be expanded and a wide view can be obtained without loss. As a result, the exterior design of the roof of the entire building including the overhanging portion 14 can be made clean while fully exerting the functionality of the overhanging portion 14.

  The unit building 10 has a building unit group 20 composed of a plurality of box-shaped building units 16 and 18 arranged adjacent to each other so that the girder faces are parallel to each other. Since the overhang | projection part 14 was made to be attached to the side, it can be set as an attached structure with a sufficient structure fit. As a result, the unit building 10 having a good balance as a whole is obtained.

  Furthermore, since the pillar omission part 58 which eliminated two adjacent pillars is provided in the wife side surface of the building unit group 20, a pillar is formed at the boundary between the building unit group 20 and the overhanging part 14 which is an attached structure. A continuous and large space that does not exist (no obstacles) can be obtained. As a result, an open unit building 10 having excellent habitability is obtained.

  In addition, since the reinforcing beam 62 connecting both the ceiling beams 30 and 48 is provided between the adjacent ceiling beams 30 and 48 located on the column omitting portion 58 on the side face of the building unit group 20, the column omitting portion 58 is provided. It can be reinforced sufficiently. As a result, it is possible to achieve both securement of a large open space with excellent comfort and sufficient securing of strength and rigidity as a structure.

  Furthermore, since the temporary column 22 detachable in the factory is attached in advance to the column omitting portion 58, the building units 16 and 18 are deformed during transportation from the factory to the building site and when installing the unit in the building site. There is no fear of. Therefore, the transportability and installation property of the building units 16 and 18 can be improved.

[Supplementary explanation of this embodiment]
(1) In the present embodiment described above, the unit building 10 adopting the wide span construction method using the reinforcing beam 62 has been described as an example. However, the present invention is not limited to this, and other configurations may be adopted.

  For example, in the example shown in FIG. 3, the building units 16, 18 include four pillars 22, and the pillar omitting part 58 is not formed. In this case, the subunit 100 assembled for each unit size is used. Specifically, in the example shown in FIG. 3, the normal building unit 16 side has a ceiling portion (ceiling subframe) 102 assembled in a U shape in plan view according to the unit size, and in plan view. A floor portion (floor subframe) 104 assembled in an E shape is used, and a small ceiling is assembled on the building unit 18 side of the half unit in a U shape in plan view according to the unit size. A portion (ceiling subframe) 106 and a floor portion (floor subframe) 108 assembled in the same shape and size are used.

  Even if it is the said structure, the expansion of the living space 64 by the overhang | projection part 14 and a wide view are obtained. In addition, when the ceiling portions 102 and 106 and the floor portions 104 and 108 of the subunit 100 are used in units as described above, the ceiling portion 102 (106) and the floor portion 104 (108) are previously set in the factory. Since the building unit 16 (18) can be preceded, the building unit 16 (18) and the ceiling 102 (106) and floor 104 (108) attached to the building unit 16 (18) can be constructed in one transport. Can be carried to the ground. The same can be said for the building unit 18 side. As a result, the transportation efficiency of the building units 16 and 18 can be increased, and the construction period can be shortened.

  Furthermore, since the ceiling portions 102 and 106 and the floor portions 104 and 108 can be rigidly joined to the building units 16 and 18 in the factory in advance by welding, the quality control of welding becomes easy and the welding accuracy can be increased. .

  (2) In the present embodiment described above, the subunit 100 is matched with the size of the building unit group 20 without being divided into the unit units of the building units 16 and 18, but the present invention is not limited to this. The subunit 100 may be divided as shown in FIG. In this case, the configurations of the ceiling portions 102 and 106 and the floor portions 104 and 108 described in the above (1) may be used as they are, and as shown in the detailed plan view of the joint portion in FIG. The base end portions of the pair of ceiling cantilever beams 72 arranged adjacent to each other may be rigidly joined to the reinforcing beam 62. The reinforcing beam 62 is joined to the ceiling large beams 30 and 48 via a bracket 63. Adjacent ceiling joints 110 are connected to each other by a connecting member (docking plate) 112.

  If it does in this way, the same effect as connecting the cantilever ceilings 72 adjacent in the column omission part 58 with the reinforcement beam 62 will be acquired, and the rigidity as a frame surface of the ceiling parts 102 and 106 will be made high. Can do. As a result, the deformation resistance of the subunit 100 with respect to seismic load and wind load can be improved.

It is a perspective view which shows the state by which the overhang | projection part was installed in the unit building main body. It is a perspective view which shows the state in which the roof was further mounted in the state shown by FIG. In the type which does not provide a column omission part, it is a perspective view which shows embodiment which divided | segmented the subunit for every unit size of the building unit. In the type which provides a column omission part, it is a perspective view which shows embodiment which divided | segmented the subunit for every unit size of the building unit. It is a top view which shows the junction structure of the ceiling cantilever of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Unit building 12 Unit building main body 14 Overhang | projection part 16 Building unit 18 Building unit 20 Building unit group 22 Column 28 Ceiling girder 30 Ceiling girder 34 Floor girder 36 Floor girder 40 Column 46 Ceiling girder 48 Ceiling girder 52 Floor girder 54 Floor girder 58 Column Omitted part 60 Temporary column 62 Reinforcement beam 64 Living space 68 Ceiling part 70 Floor part 84 Roof part 86 Main body roof panel 88 Extended roof panel 102 Ceiling part 104 Floor part 106 Ceiling part 108 Floor part

Claims (10)

A building unit including a ceiling beam, a floor beam, and a plurality of columns;
An attached structure that is attached to the outer surface of the building unit and includes a ceiling portion and a floor portion, and expands a living space of the building unit;
A unit building composed of
The ceiling portion of the attached structure is extended from the vicinity of the ceiling beam of the building unit and attached to at least one of the ceiling beam and the column of the building unit in a cantilevered state,
By extending the floor portion of the attached structure from the vicinity of the floor beam of the building unit and attaching it to at least one of the floor beam and the column of the building unit in a cantilevered state,
A structure that does not cause the floor to bear the load of the ceiling,
Furthermore, an extended roof panel is attached to the outermost part of the ceiling part of the attached structure, and an extended roof panel extending from the main body roof panel assembled to the upper part of the main body part of the unit building.
A first building unit of normal size, and a second building unit of the arranged adjacent to the girder side and half size which are connected together, with one of the building unit group is formed by the An attached structure is attached across the first building unit and the second building unit constituting the building unit group,
A unit building characterized by that. The first building unit and the second building unit include three columns erected at three corners, a ceiling frame joined between upper ends of these columns, and lower ends of these columns. A floor frame joined between,
The unit building according to claim 1. The extended roof panel is connected to the eaves side of the main body roof panel at the same inclination angle.
The unit building according to claim 1, wherein the unit building is a unit building. The extended roof panel is arranged continuously with the main body roof panel to form a roof with the main body roof panel.
The unit building according to claim 3. The attached structure is assembled in advance in the factory and attached to the outer surface of the building unit.
The unit building according to any one of claims 1 to 4, characterized in that: The unit building has a building unit group composed of a plurality of box-shaped building units arranged adjacent to each other so that the girder faces are parallel to each other, and the attached structure is provided on the end face side of the building unit group. Attached,
The unit building according to any one of claims 1 to 5, wherein the unit building is characterized. On the side of the wife of the building unit group, a column omission part is provided that eliminates two adjacent columns.
The unit building according to claim 6. Between the adjacent ceiling beams located in the column omitted portion on the side surface of the wife of the building unit group, a reinforcing beam for connecting both ceiling beams is provided,
The unit building according to claim 7. Temporary pillars that are removable in the factory in advance are attached to the pillar omitted parts,
The unit building according to claim 7 or 8, characterized by the above. The accessory structure includes a ceiling portion in each building unit group of the building unit group, and the ceiling structure materials adjacent to each other in the column omitted portion when the accessory structure is arranged adjacent to each other, Connected by reinforcing beams,
The unit building according to claim 8.

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