JP5809434B2 - building - Google Patents

Description

  The present invention relates to a building.

  On a site where a building such as a house is built, a building extension work may be performed as a renovation of the building. For example, Patent Document 1 discloses a configuration in which an existing building and an additional building are connected by a connecting portion, and the connecting portion is used as a communication passage. In a building having such an expanded building, building facilities that can be shared by the existing building and the added building may be installed. Examples of building facilities include air conditioners that air-condition existing buildings and additional buildings.

JP-A-10-205147

  However, even when a building is being expanded, an existing building may be used by a resident or the like. In this case, if the building facility is installed in an existing building during the expansion work, a person using the existing building is affected by the installation work of the building facility. For example, the usable range and timing of an existing building are limited by the installation work of building facilities. There is also a concern that it may be difficult to share building facilities depending on the installation location of the building facilities.

  The main object of the present invention is to realize a configuration that is convenient for sharing the building equipment between the existing side and the expansion side, and to reduce the influence on the use of the existing side during the expansion work. .

  In order to solve the above-mentioned problem, the building of the first invention is a building in which a second building is structurally independent from the existing first building, and the second building is A unit structure is installed on an extension foundation, and the unit structure has an overhang formed by projecting from the extension foundation toward the first building and the extension It is connected to the 1st building by the part, and the building facilities shared in the 1st building and the 2nd building are installed in the overhang part, It is characterized by the above-mentioned.

  According to 1st invention, since building facilities, such as an air-conditioner, are installed in the overhang | projection part connected to a 1st building in a 2nd building, a building facility is a 1st building and a 2nd building. A configuration that is convenient for sharing can be realized. For example, it is possible to facilitate the handling of electrical wiring and air conditioning ducts connected to building facilities. Moreover, when the second building is constructed, the building facilities can be attached to the unit structure in advance, for example, at a building unit manufacturing factory. For this reason, installation work of building equipment can be facilitated by installing the building equipment together with the building unit at the construction site. Furthermore, since the installation location of the building facilities is secured in the second building, even if the first building is used by a resident or the like during the expansion work of the second building, the expansion work reaches the first building side The impact can be reduced. As a result, it is possible to realize a configuration that is convenient for sharing the building equipment between the existing side and the additional side, and to reduce the influence on the existing side during the extension work.

  In the second invention, the unit structure includes a building unit formed in a rectangular parallelepiped shape including a column and a large beam connected to the column, and a projecting unit that forms the projecting portion, A building unit is installed on the extension foundation, and the overhang unit is attached to one side of the building unit and is cantilevered by the building unit.

  According to the second invention, since the overhang unit forming the overhang portion in the second building has a cantilever structure that is cantilevered by the building unit, it is necessary to support the tip side of the overhang portion. Absent. Therefore, even if the second building has an overhanging portion, it is possible to suppress an increase in work load when the second building is added.

  In 3rd invention, the said building unit is provided so that the one side surface may become the opposing part which opposes the said 1st building, The said overhanging unit is provided in a part in the said opposing part. A gap area is provided between the first building and the building unit as a part other than the overhanging unit.

  When building facilities are installed outdoors, there is a concern that the exterior of the building may be damaged by the building facilities. In this regard, according to the third invention, since the overhang unit and the gap area are adjacent to each other between the first building and the building unit, the building equipment is attached to the overhang portion in advance. Therefore, it is possible to install the building equipment in a gap area that is not conspicuous outdoors. Therefore, it can suppress that the external appearance of a building is impaired by building facilities outdoors, Furthermore, installation work of building facilities in a construction site can be facilitated.

  In 4th invention, the said overhang | projection part has the outdoor floor arrange | positioned in the said clearance gap area | region in addition to the said overhang | projection unit.

  According to 4th invention, a building installation can be suitably fixed with respect to an overhang | projection part by installing a building installation on an outdoor floor in a clearance gap area | region. Therefore, in a configuration in which the building equipment is attached in advance to the overhanging portion, for example, at a building unit manufacturing factory, the overhanging portion and the building equipment can be transported to the construction site in an appropriate state.

  In 5th invention, the said building equipment has the indoor equipment installed in a building, and the outdoor equipment installed outdoors, The said indoor equipment is provided in the said overhang unit, The said outdoor equipment Is provided on the outdoor floor.

  According to the fifth invention, even if the building equipment has both the indoor equipment and the outdoor equipment, the indoor equipment and the indoor equipment are previously attached to the overhanging part, for example, at the building unit manufacturing factory. Can do. That is, it is possible to facilitate the work of installing indoor equipment and outdoor equipment at a construction site.

  In a sixth aspect of the present invention, the overhang unit is provided with an indoor passage that allows the first building and the building unit to communicate with each other, and the indoor equipment includes the indoor passage in the overhang unit. Is provided in at least one of the ceiling space and the underfloor space.

  According to the sixth invention, in the configuration in which the internal space of the overhang unit is used as an indoor passage, the indoor equipment is arranged in at least one of the ceiling back space and the underfloor space of the indoor passage. Therefore, the indoor equipment can be arranged in the overhanging unit so as not to hinder human traffic in the indoor passage.

  In 7th invention, the said building equipment has an air-conditioning equipment which air-conditions indoor space for both the said 1st building and the said 2nd building, The said air-conditioning equipment is an air-conditioning as said indoor equipment It has an indoor unit and an air-conditioning outdoor unit as the outdoor equipment.

  According to the seventh invention, both the air conditioning indoor unit and the air conditioning outdoor unit can be attached to the overhanging part, for example, at a building unit manufacturing factory. And since it becomes possible to attach the refrigerant | coolant pipe | tube which connects an air-conditioning indoor unit and an air-conditioning outdoor unit in a manufacturing factory, the installation operation | work of the air-conditioning equipment in a construction site can be made still easier.

  In an eighth aspect of the invention, an air supply port for supplying conditioned air to the indoor spaces of the first building and the second building is connected to the air conditioning indoor unit via an air conditioning duct.

  According to the eighth aspect of the invention, the air conditioning indoor unit is connected to the air supply ports on the existing side and the expansion side via the air conditioning duct. Here, the air-conditioning duct that connects the air supply opening of the first building and the air-conditioning indoor unit is bridged between the overhanging portion and the first building at the connecting portion between the overhanging portion and the first building. Therefore, the work range performed on the boundary between the overhanging portion and the first building can be minimized. Thereby, it is possible to reduce the influence on the use of the existing side during the construction period.

The perspective view which shows schematic structure of the building in this embodiment. Sectional drawing which shows schematic structure of a building. The perspective view which shows the structure of a building unit. Sectional drawing which shows schematic structure of another building.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the present embodiment, the present invention is embodied for a building having an additional building. FIG. 1 is a perspective view showing a schematic configuration of a building 10.

  As shown in FIGS. 1 and 2, a building 10 such as a house has a first building 11 and a second building 12 added to the first building 11. The 1st building 11 and the 2nd building 12 are arranged side by side, and are connected in the state where indoor spaces were connected so that they could come and go.

  The first building 11 is placed on the first foundation 14. The first foundation 14 is a reinforced concrete cloth foundation, and has a footing portion embedded in the ground and a rising portion extending upward from the footing portion. The first building 11 is a two-story building, and the first floor portion 11a as the lower floor portion provided on the first foundation 14 and the upper floor portion provided on the first floor portion 11a. As a second floor portion 11b. The first building 11 is constructed by a conventional wooden construction method.

  The second building 12 is placed on a second foundation 15 that is spaced apart from the first foundation 14. The second foundation 15 as the extension foundation is a reinforced concrete cloth foundation similar to the first foundation 14 and has a footing portion and a rising portion. The second foundation 15 is disposed laterally away from the first foundation 14 and is constructed independently of the first foundation 14 in terms of structure. In this case, the second foundation 15 is disposed at a position where the mutual footing portions are separated from each other in the ground with respect to the first foundation 14, and the separation distance between the rising portions is the separation distance between the footing portions and each footing. It is set according to the width dimension of the part (for example, 1 m).

  The second building 12 includes a building main body 16 and an overhanging portion 17 that protrudes from the building main body 16 toward the first building 11. The building body 16 has a substantially rectangular parallelepiped shape, and is in a position separated from the first building 11 with one side faced to one side of the first building 11.

  The overhanging portion 17 is disposed in a separated portion between the first building 11 and the building main body 16 and is cantilevered by the building main body 16. The overhang portion 17 is attached to the surface of the building body 16 that faces the first building 11, and the end opposite to the building body 16 faces the building body 16 of the first building 11. Connected to the surface to be. In the overhanging portion 17, an opening is provided at a connection portion with the first building 11, and the indoor spaces of the first building 11 and the second building 12 communicate with each other through the opening. Has been.

  A gap region S is secured on the side of the overhanging portion 17 in the space between the building body 16 of the first building 11 and the second building 12. The second building 12 is arranged so that one side surface of the building body 16 is a facing portion facing the first building 11, and a mounting portion to which the overhanging portion 17 is attached to the facing portion. There is a non-attached portion to which the protruding portion 17 is not attached, and these attached portions and non-attached portions are side by side. In this case, the gap region S is a space sandwiched between the non-attached portion and the first building 11 and is arranged side by side with the overhanging portion 17. In other words, the space between the first building 11 and the building body 16 of the second building 12 is divided into the overhanging portion 17 and the gap region S.

  The overhang portion 17 of the second building 12 has an outdoor floor 18 disposed in the gap region S outdoors. The outdoor floor 18 extends in the horizontal direction in the gap region S and is structurally connected to the building body 16. In this case, the outdoor floor 18 is cantilevered by the building body 16.

  Most of the second building 12 is formed of a unit structure that is factory-produced. The unit structure has a building unit 20 constituting the building body 16 and an overhang unit 30 constituting the overhang portion 17, and the building unit 20 and the overhang unit 30 are connected to each other. Built. Here, the building unit 20 and the overhang unit 30 will be described with reference to FIG. FIG. 3 is a perspective view showing the structure of the building unit.

  As shown in FIG. 3, in the building unit 20, columns 21 are arranged at the four corners, and the upper end and the lower end of each column 21 are connected by four ceiling beams 22 and floor beams 23, respectively. A rectangular frame (frame) is formed by the pillars 21, the ceiling beams 22 and the floor beams 23. The column 21 is made of a square tube-shaped square steel. Moreover, the ceiling beam 22 and the floor beam 23 are made of channel steel having a U-shaped cross section, and are installed so that the openings thereof face each other.

  A plurality of small ceiling beams 25 are bridged at predetermined intervals between the large ceiling beams 22 that extend along the long side portion (girder surface) of the building unit 20 and face each other. Similarly, a plurality of floor beams 26 are bridged at predetermined intervals between the large floor beams 23 that extend along the long side of the building unit 20 and face each other. The ceiling beam 25 and the floor beam 26 are horizontally provided at the same interval and at positions corresponding to the top and bottom.

  In the building unit 20, a ceiling surface material is attached to the ceiling beam 25, a ceiling portion is formed by the ceiling beam 25 and the ceiling material, and the floor material is attached to the floor beam 26. The floor portion is formed by the floor beam 26 and the floor material. Further, wall materials are attached to the columns 21, and wall portions are formed by the columns 21 and the wall materials. In the building unit 20, a frame is constituted by a skeleton including columns 21, ceiling beams 22, and floor beams 23.

  The overhang unit 30 includes a column 31 extending in parallel with the column 21 of the building unit 20, a ceiling beam 32 connected to the upper end of the column 31, and a floor beam 33 connected to the lower end of the column 31. ing. A rectangular parallelepiped skeleton is formed by the columns 31, the ceiling beams 32 and the floor beams 33. The column 31 is made of a square tube-shaped square steel. Moreover, the ceiling beam 32 and the floor beam 33 are made of channel steel, and are arranged with the open portions of the respective grooves facing the inside of the overhanging unit 30.

  The ceiling beam 32 and the floor beam 33 extending toward the building unit 20 in the overhang unit 30 are connected to the building unit 20 at their respective leading ends. With respect to the ceiling beam 32, a pair of ceiling beams 32 arranged across the ceiling beam 32 extending in parallel with the long side portion of the building unit 20 extends toward the building unit 20, and one of the ceiling beams 32 is One end of the long side portion of the building unit 20 (upper end portion of the column 21) is connected, and the other end is connected to an intermediate portion (ceiling beam 22) of the long side portion of the building unit 20. As for the floor girder 33, as with the ceiling girder 32, a pair of floor girder 33 arranged across the floor girder 33 extending in parallel with the long side portion of the building unit 20 extends toward the building unit 20. One of the floor beams 33 is connected to one end of the long side portion of the building unit 20 (the upper end portion of the column 21), and the other is connected to an intermediate portion (floor beam 23) of the long side portion of the building unit 20. In addition, the bracket which is not shown in figure is provided in each connection part of the overhang | projection unit 30 and the building unit 20, respectively, and the connection intensity | strength is raised with each bracket.

  In the second building 12, the ceiling beam 32 and the floor beam 33 of the overhang unit 30 are connected to the middle part of the long side portion of the building unit 20, thereby forming a corner that is recessed toward the indoor side. A gap region S is formed by the corner portion.

  In the overhang unit 30, although not shown, a ceiling beam connected to the ceiling beam 32 and a floor beam connected to the floor beam 33 are provided. A ceiling part is formed by attaching a ceiling surface material to the ceiling beam, and a floor part is formed by attaching a floor surface material to the floor beam. Further, a wall portion is formed by attaching a wall surface material to the column 31.

  Incidentally, the building unit 20 may be provided with a reinforcing column that supports the portion of the ceiling beam 22 to which the ceiling beam 32 of the overhang unit 30 is connected from below. It is preferable that the reinforcing column is erected on a portion of the floor girder 23 where the floor girder 33 of the overhang unit 30 is connected.

  The outdoor floor 18 of the overhanging portion 17 has an outdoor girder 35. The outdoor girder 35 is disposed at the corner of the building unit 20 and the overhang unit 30 and extends parallel to the floor girder 33 of the overhang unit 30. A plurality of outdoor large beams 35 are provided, and extend from the lower end portion of the column 21 of the building unit 20 toward the corner portion and from the lower end portion of the column 31 of the overhang unit 30 toward the corner portion. The outdoor girder 35 is orthogonal to each other, and is connected by free ends. The outdoor girder 35 is connected to the floor girder 23 of the building unit 20 by a plurality of outdoor girder beams (not shown), and a waterproof outdoor floor material is placed on the outdoor girder. In this case, the outdoor floor 18 is structurally connected to the building unit 20 and the overhang unit 30 by the outdoor girder 35.

  The overhanging portion 17 of the second building 12 is connected to the first building 11 in a structurally independent state. The connection part of the overhang | projection part 17 (2nd building 12) and the 1st building 11 is made into the expansion joint, and these buildings 11 and 12 are not connected by the frames. In the expansion joint, the column 31 and the outdoor large beam 35 on the opposite side of the building unit 20 of the overhang unit 30 are arranged away from the frame such as the column or the large beam of the first building 11, and the separated portion is the outer wall surface. It is covered with a finishing material such as a material, an inner wall surface material, and a waterproof material. Because the first building 11 and the second building 12 are structurally independent, when the building 10 shakes when an earthquake occurs, the connecting portion of the buildings 11 and 12 serves as a fulcrum. It can suppress that the shaking of the building 12 becomes large.

  Returning to the description of FIGS. 1 and 2, in the first building 11 of the building 10, a room 41 as an indoor space is provided in each of the first floor part 11 a and the second floor part 11 b. It is considered as a bedroom. An interstory space 42 is provided between the room 41 of the first floor part 11a and the room 41 of the second floor part 11b. This interstitial space 42 corresponds to the ceiling space for the room 41 of the first floor part 11a. For the living room 41 of the second-floor portion 11b, this corresponds to the space under the floor. Further, an attic space 43 is provided above the living room 41 of the second floor portion 11b.

  In the second building 12 of the building 10, the living room 45 and the indoor passage 46 are provided as indoor spaces. The living room 45 is a living room, a bedroom, or the like, similar to the living room 41 of the first building 11. The living room 45 and the indoor passage 46 are arranged side by side with the living room 41 of the first building 11, and each ceiling height is substantially the same as that of the living room 41. The indoor passage 46 leads to the living room 41 of the first floor portion 11 a of the first building 11. That is, the room 45 of the second building 12 communicates with the room 41 of the first floor portion 11a of the first building 11 through the indoor passage 46.

  In the second building 12, a ceiling back space 47 is provided above the living room 45 and the indoor passage 46, and the ceiling back space 47 is arranged side by side with the interstory space 42 of the first building 11.

  The building 10 is provided with air conditioning equipment for air conditioning the indoor spaces of the first building 11 and the second building 12. The air conditioning equipment includes an air conditioning indoor unit 51 as an indoor equipment installed indoors and an air conditioning outdoor unit 52 as an outdoor equipment installed outdoors. The air conditioning indoor unit 51 and the air conditioning outdoor unit 52 are refrigerants. Connected by a tube 54. The air conditioning indoor unit 51 has a function of taking in air in an indoor space and generating conditioned air by the air. In the present embodiment, the air conditioning indoor unit 51 is disposed in the ceiling back space 47 of the indoor passage 46 in the overhanging portion 17 of the second building 12, and the air conditioning outdoor unit 52 is located on the outdoor floor 18 in the outdoor gap region S. It is placed on top.

  The air conditioning indoor unit 51 is connected to a return air port 55 that takes in air in the indoor space as the return air RA and an air supply port 56 that supplies the generated conditioned air as the air supply SA. The return air port 55 is disposed in the indoor passage 46 of the second building 12, and the air supply port 56 is disposed in each room 41 of the first building 11 and the room 45 of the second building 12. Yes. The return air port 55 is attached to the air conditioning indoor unit 51, and the air supply port 56 is connected to the air conditioning indoor unit 51 via the air conditioning duct 53.

  The air supply port 56 is attached to the ceiling surface in each of the living rooms 41 of the first building 11 and the living room 45 of the second building 12. In the 1st building 11, the air-conditioning duct 53 connected to the air inlet 56 of the living room 41 of the first floor part 11a is laid in the interstory space 42, and the air inlet 56 of the living room 41 of the second floor part 11b The connected air conditioning duct 53 is laid in the attic space 43. Here, the air-conditioning duct 53 laid in the second building 12 was spanned between the ceiling space 47 of the first building 11 where the air-conditioning indoor unit 51 is located and the interstory space 42 of the second building 12. It is in a state. In the second building 12, an air conditioning duct 53 connected to the air supply port 56 of the living room 45 is laid in the ceiling back space 47.

  The air conditioner indoor unit 51 has an air conditioner fan. During the air conditioning operation, the air conditioner fan is rotated to take in the return air RA from the indoor passage 46 and the rooms 41 of the first building 11 and the rooms of the second building 12. 45 supplies conditioned air. Here, the 1st building 11 and the 2nd building 12 are provided with the ventilation part 61 which consists of an undercut of a door, etc., and the living rooms 41 and 45 or indoors through the ventilation part 61, the staircase space, the ventilated space, etc. Ventilation between the passages 46 is possible. In this case, ventilation is performed in the buildings 11 and 12 through the ventilation portion 61 and the like, so that the conditioned air supplied to the living rooms 41 and 45 as the supply air SA spreads throughout the buildings 11 and 12. Then, the air-conditioned air that has spread throughout the buildings 11 and 12 returns to the indoor passage 46 through the ventilation portion 61 and the like, and is taken into the air-conditioned indoor unit 51 again as the return air RA. The entire building is air-conditioned as described above.

  The air conditioning equipment has a ventilation function in addition to the air conditioning function. Specifically, the air conditioning indoor unit 51 is connected to an outside air port 58 that takes in outside air as outside air OA and an air outlet 59 that discharges air in the indoor space to the outside as exhaust EA. The air-conditioning indoor unit 51 has a ventilation fan. During the ventilation operation, the ventilation fan is rotated to take in the outside air OA, and discharge the air in the indoor space to the outside from the exhaust port 59 as the exhaust EA.

  The taken-in outside air OA is supplied from the air supply port 56 to the rooms 41 and 45, and the inside air taken in from the return air port 55 is discharged to the outside as exhaust EA. For this reason, the ventilation of the whole building 10 is performed by ventilating in the building 10 through the undercut of a door etc. similarly to the time of an air-conditioning driving | operation. In other words, the entire building is ventilated. Thereby, it becomes possible to ventilate the whole building 10 for 24 hours.

  Incidentally, when the air-conditioning operation and the ventilation operation are performed in parallel, a part of the return air RA taken in from the return air port 55 is released to the outside as the exhaust air EA and taken in from the outside air port 58. Outside air OA is supplied to each room 41 together with the supply air SA.

  Next, a work procedure for adding the second building 12 will be briefly described.

  First, on the site where the first building 11 is constructed, the second foundation 15 is constructed adjacent to the first foundation 14. In this case, since the second foundation 15 is not structurally connected to the first foundation 14, the construction work of the second foundation 15 can be facilitated.

  About the 2nd building 12, the building unit 20 and the overhang | projection unit 30 are separately manufactured beforehand in a manufacturing factory. Here, in the manufacturing factory, not only the building unit 20 and the overhang unit 30 are manufactured, but also the building body 16 is constructed by the building unit 20 and constructed by the overhang unit 30 and the outdoor girder 35. In addition, an air conditioning indoor unit 51 is attached to the ceiling space 47 of the indoor passage 46 of the overhanging portion 17, and an air conditioning outdoor unit 52 is attached to the outdoor floor 18. Further, a refrigerant pipe 54 is laid on the overhanging portion 17, and the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 are connected by the refrigerant pipe 54.

  And the building main body 16 and the overhang | projection part 17 are each transported to a construction site with a truck | truck etc. At the construction site, the building body 16 is first placed on the second foundation 15 and fixed with anchor bolts or the like, and the overhanging portion 17 is attached to the building body 16. And while connecting the overhang | projection part 17 to the 1st building 11, the opening part is formed in the 1st building 11 and the indoor channel | path 46 of the overhang | projection part 17 is connected.

  Here, since the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 are already attached to the overhanging portion 17, the installation work of the overhanging portion 17 and the installation work of the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 are performed together. It will be. Thereby, work man-hours can be reduced for the installation work of the air conditioning indoor unit 51 and the air conditioning outdoor unit 52. In addition, since the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 are already connected by the refrigerant pipe 54, the number of work steps can be further reduced.

  Thereafter, the air inlet 56 is installed in each room 41 of the first building 11, and the air conditioning duct 53 is installed in the interstory space 42 and the attic space 43. Here, the work of bridging the air-conditioning duct 53 connecting the air supply port 56 of the first building 11 and the air-conditioning indoor unit 51 to the first building 11 and the second building 12 is performed on the ceiling of the indoor passage 46. This is performed around the space 47. Therefore, this work can be performed in substantially the same range as the work of connecting the first building 11 and the overhanging portion 17, and as a result, the construction range when adding the second building 12 can be minimized. . This also leads to facilitating the handling of the air conditioning duct 53 in the first building 11. Furthermore, not only the air conditioning duct 53 but also the electrical wiring connected to the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 can facilitate the handling in the first building 11.

  Moreover, about the 2nd building 12, the laying construction of the air-conditioning duct 53 which connects the air-conditioning indoor unit 51 and the air supply port 56 of the living room 45 is performed.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  In the 2nd building 12, since the air-conditioning indoor unit 51 and the air-conditioning outdoor unit 52 are installed in the overhang | projection part 17 connected to the 1st building 11, these air-conditioning indoor unit 51 and the air-conditioning outdoor unit 52 are made into 1st. A configuration that is convenient for sharing the building 11 and the second building 12 can be realized. For example, the air conditioning duct 53 and the electrical wiring connected to the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 can be facilitated.

  And since the 2nd building 12 is constructed | assembled by the unit structure which has the building unit 20 and the overhang | projection unit 30, in the construction of the 2nd building 12, the air-conditioning indoor unit 51 and the air-conditioning outdoor unit 52 are built. The unit 20 and the overhang unit 30 can be attached to the overhang portion 17 in advance at a manufacturing factory where the unit 20 and the overhang unit 30 are manufactured. In this case, since the installation work of the air conditioning indoor unit 51 at the construction site can be facilitated and the number of work steps can be reduced, the installation work of the air conditioning indoor unit 51 is performed even if the existing first building 11 is used as a residence by a resident. Can reduce the impact of the life on the resident.

  As a result of the above, it is possible to realize a convenient configuration in sharing building facilities such as the air conditioning indoor unit 51 and the air conditioning outdoor unit 52 on the existing side including the first building 11 and the additional side including the second building 12, In addition, it is possible to reduce the influence on the use of the existing side during the expansion work.

  An air conditioner outdoor unit 52 is installed in the gap area S of the building 10 outdoors. In this case, since the air-conditioning outdoor unit 52 is not conspicuous outdoors, it is possible to suppress the appearance of the building 10 from being damaged by the air-conditioning outdoor unit 52. Moreover, since the air-conditioning outdoor unit 52 is fixed to the overhanging portion 17 in the gap region S, the air-conditioning outdoor unit 52 can be attached in advance, for example, at the manufacturing factory of the building unit 20. . That is, the installation work of the air conditioning outdoor unit 52 at the construction site can be facilitated.

  Further, for the air conditioner outdoor unit 52 and the air conditioner indoor unit 51, connection work by the refrigerant pipe 54 can be completed in advance. Therefore, the installation work of the air conditioning equipment at the construction site can be further facilitated.

  Since the overhanging portion 17 has the outdoor floor 18 in the gap region S, and the air conditioning outdoor unit 52 is installed on the outdoor floor 18, the air conditioning outdoor unit 52 can be suitably fixed to the overhanging portion 17. Therefore, in the configuration in which the air-conditioning outdoor unit 52 is attached in advance to the overhanging portion 17 in the manufacturing factory of the building unit 20, the overhanging portion 17 and the air-conditioning outdoor unit 52 can be transported to the construction site in an appropriate state. it can. In addition, in this case, building facilities installed indoors and outdoors such as the air conditioner outdoor unit 52 and the air conditioner indoor unit 51 like the air conditioner can be suitably installed on the overhanging portion 17.

  In the building 10 in which the indoor passage 46 is formed by the overhanging portion 17, the air conditioning indoor unit 51 is installed in the ceiling space 47 of the indoor passage 46. It can be made not to interfere.

  In the connection part of the 1st building 11 and the 2nd building 12, in addition to the operation | work for connecting these buildings 11 and 12, the transfer work of the air-conditioning duct 53 is performed, Therefore The work range by these operations is made as much as possible Can be small. Therefore, in the configuration in which air conditioning is performed on the first building 11 by the air conditioning indoor unit 51 installed in the second building 12, it is possible to reduce the influence on the use on the existing side during the construction period.

  Since the outdoor floor 18 is provided in the gap area S, the air conditioner outdoor unit 52 can be placed on the outdoor floor 18. In this case, since it is not necessary to construct a foundation for the air conditioner outdoor unit 52 in the gap area S, the installation work of the air conditioner outdoor unit 52 can be facilitated. Moreover, since the outdoor floor 18 is cantilevered by the building body 16 of the second building 12, there is no need to construct a foundation for supporting the outdoor floor 18, and the work load when constructing the outdoor floor 18 is reduced. Can be reduced.

  In the 2nd building 12, since the overhang | projection part 17 is made into the cantilever structure supported by the building main body 16, it is not necessary to support the part by the side of the 1st building 11 of the overhang | projection part 17. FIG. Therefore, even if the second building 12 has the overhanging portion 17, it is possible to suppress an increase in work load when the second building 12 is added.

(Other embodiments)
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) The second building 12 added in the building 10 may be a plurality of floors. For example, as shown in FIG. 4, it is set as the structure made into the two-story unit type building. In this configuration, the second building 12 has a first floor portion 12a and a second floor portion 12b, and the overhanging portion 17 is arranged on the second floor portion 12b. The building body 16 of the second building 12 is formed by arranging the building units 20 side by side, and the building unit 20 forming the overhanging portion 17 is cantilevered by the upper building unit 20. ing. In this case, the overhang portion 17 is connected to the second floor portion 11 b of the first building 11 in a structurally independent state.

  In this case, in the second building 12, the air conditioning indoor units 51 are individually provided for each floor, and the air conditioning indoor units 51 are all installed in the overhanging portion 17. In the overhanging portion 17, in addition to the ceiling space 47, an underfloor space 71 is provided below the indoor passage 46, and the air conditioning indoor unit 51 for the first floor portion 12 a is disposed in the underfloor space 71, and the second floor portion The air conditioner indoor unit 51 for 12b is disposed in the ceiling space 47. In this case, the air conditioning indoor unit 51 in the underfloor space 71 is connected to the air supply port 56 of the first floor portion 11a of the first building 11 by the air conditioning duct 53, and the air conditioning indoor unit 51 in the ceiling back space 47 is The air-conditioning duct 53 is connected to the air supply port 56 of the second floor portion 11 b of the one building 11. Even in this case, since the air-conditioning duct 53 can be laid over the connection portion between the first building 11 and the overhanging portion 17, the work range associated with the expansion work can be minimized.

  (2) In the said embodiment, the 2nd building 12 may be constructed | assembled by the building unit 20 among the building unit 20 and the overhang | projection unit 30. FIG. For example, the building unit 20 is configured to be installed on the second foundation 15 in a state in which a part of the building unit 20 protrudes from the second foundation 15 toward the first building 11. In this configuration, the overhanging portion 17 is formed by the protruding portion of the building unit 20. Even in this case, the air conditioning indoor unit 51 can be installed in the overhanging portion 17.

  (3) In the 2nd building 12, the overhang | projection part 17 does not need to be a cantilever structure. For example, it is set as the structure by which the support | pillar which supports the edge part by the side of the 1st building 11 in the overhang | projection part 17 is provided.

  (4) A partition wall that partitions the indoor spaces of the first building 11 and the overhanging portion 17 may be provided at a connection portion between the first building 11 and the overhanging portion 17. For example, it is set as the structure by which the outer wall of the 1st building 11 as a partition wall is provided. In this case, a return air port 55 is preferably installed in the first building 11, and the return air port 55 is preferably connected to the air conditioning indoor unit 51 of the second building 12 by the air conditioning duct 53. Thereby, even if each indoor space of the 1st building 11 and the 2nd building 12 is partitioned off, it becomes possible to perform whole building air conditioning and whole building ventilation.

  (5) Indoor equipment such as the air conditioning indoor unit 51 may be provided in the indoor passage 46 in the overhanging portion 17. In addition, outdoor equipment such as the air conditioner outdoor unit 52 may be installed on the roof of the building unit 20 or the outer wall surface in the overhanging portion 17. In addition, when the outdoor equipment is attached to the building unit 20, the outdoor floor 18 may not be provided.

  (6) Examples of building equipment installed in the second building 12 include a hot water supply device, a power storage device, and a power supply device in addition to the air conditioning equipment. For example, in the case of a hot water supply device, a storage tank for storing hot water is installed inside the overhanging portion 17 as indoor equipment, and a heating portion that heats hot water and generates exhaust and exhaust heat accompanying the heating is installed as outdoor equipment. Installed outside the outlet 17.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... 1st building, 12 ... 2nd building, 15 ... 2nd foundation as an expansion foundation, 16 ... Building body, 17 ... Overhang part, 18 ... Outdoor floor, 20 ... Unit structure Building unit as 30. Projecting unit as unit structure, 41. Living room as indoor space, 46. Indoor passage, 47. Back ceiling space, 51. Air conditioning indoor unit constituting air conditioning equipment and indoor equipment 52 ... Air-conditioning outdoor unit that constitutes air-conditioning equipment and as outdoor equipment, 53 ... Air-conditioning duct, 56 ... Air supply port.

Claims (8)

It is a building where a second building has been added independently from the existing first building.
In the second building, a unit structure is installed on an extension foundation, and the unit structure extends from the extension foundation toward the first building. And having a portion connected to the first building by the overhanging portion,
The ceiling space of the indoor space that the overhang portion has is arranged side by side with the ceiling space or the attic space of each indoor space of the first building and the second building,
In the ceiling space of the overhanging part , building facilities shared in the first building and the second building are installed ,
Pipes extending from the building facility to the indoor spaces of the first building and the second building are connected to the ceiling space of the projecting portion and the indoors of the first building and the second building. A building characterized by being provided across the ceiling space or the attic space of a space . The unit structure includes a building unit formed in a rectangular parallelepiped shape including a column and a large beam connected to the column, and a projecting unit that forms the projecting portion, and the building unit includes the extension base. Is deferred on the
The building according to claim 1, wherein the overhang unit is attached to one side surface of the building unit and is cantilevered by the building unit. The building unit is provided so that one side surface thereof is a facing portion facing the first building,
In the facing portion, the overhang unit is provided in a part thereof,
The building according to claim 2, wherein a gap area is provided as a part other than the overhang unit between the first building and the building unit.   The said overhang | projection part has the outdoor floor arrange | positioned in the said clearance gap area | region in addition to the said overhang | projection unit, The building of Claim 3 characterized by the above-mentioned. It is a building where a second building has been added independently from the existing first building.
In the second building, a unit structure is installed on an extension foundation, and the unit structure extends from the extension foundation toward the first building. And having a portion connected to the first building by the overhanging portion,
In the overhanging part, building facilities shared in the first building and the second building are installed,
The unit structure includes a building unit formed in a rectangular parallelepiped shape including a column and a large beam connected to the column, and a projecting unit that forms the projecting portion, and the building unit includes the extension base. Is deferred on the
The overhang unit is attached to one side of the building unit and is cantilevered by the building unit,
The building unit is provided so that one side surface thereof is a facing portion facing the first building,
In the facing portion, the overhang unit is provided in a part thereof,
Between the first building and the building unit, a gap region is provided as a part other than the overhang unit,
In addition to the overhang unit, the overhang part has an outdoor floor disposed in the gap region,
The building equipment has indoor equipment installed in the building and outdoor equipment installed outdoors, the indoor equipment is provided in the overhang unit, and the outdoor equipment is provided on the outdoor floor. building it characterized by being. The overhang unit is provided with an indoor passage that allows the first building and the building unit to communicate with each other.
The building according to claim 5, wherein the indoor equipment is provided in at least one of a ceiling space and an underfloor space of the indoor passage in the overhang unit.   The building facility has an air conditioning facility that air-conditions an indoor space for both the first building and the second building, and the air conditioning facility includes an air conditioning indoor unit as the indoor facility, and the outdoor It has an air-conditioning outdoor unit as equipment, The building according to claim 5 or 6 characterized by things.   The air conditioning indoor unit is connected to an air supply port for supplying conditioned air to each indoor space of the first building and the second building via an air conditioning duct. 7. The building according to 7.

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