JP5237744B2 - Building unit and unit type building - Google Patents

Description

  The present invention relates to a building unit and a unit type building.

Buildings using steel members are affected by thermal bridges that are unique to steel members in winter. The thermal bridge means a part having extremely large thermal conductivity in the structure, and this part becomes a thermal short-circuit part that can conduct heat more easily than other parts.
Conventionally, as a countermeasure against this thermal bridge, the floor base panel is supported by metal pulls, and the floor insulation located on both sides of the large pull under the floor base panel is supported by a heat insulator support. The U-shaped member having an upper surface portion disposed between the large pull and the floor base panel and a side surface portion provided on both sides of the upper surface portion and supporting the heat insulating material at the lower end portion. (For example, refer to Patent Document 1).
In addition, there is one that covers a steel pulling on which a floor material is supported with a heat insulating material (see, for example, Patent Document 2). Further, as a measure for heat insulation of the floor, there is one that covers the periphery of the steel joists of the steel house with a heat insulating material (for example, see Patent Document 3). Furthermore, some unit type buildings have a foundation as an insulating foundation and warm the foundation.

JP 2007-217880 A JP 2005-307447 A JP-A-11-159019

  However, in the countermeasures against the thermal bridge described in the cited documents 1 to 3, since it is necessary to cover the overdraw and joists with a heat insulating material or the like, there is a problem that the construction at the site becomes complicated. In addition, the thermal bridge measures that use the foundation as the heat insulation foundation and heat the foundation have a problem that the construction becomes large and the construction cost becomes high, and it is difficult to take under-floor ventilation.

  An object of the present invention is to provide a building unit and a unit-type building that can suppress heat transfer and can be easily constructed on site to reduce the construction cost.

Referring to the drawings, the building unit 3 of the present invention is a building unit 3 in which a rectangular parallelepiped frame 13 is formed from upper and lower beams 11 and 12 and a pillar 10, and is an adjacent building unit 3. At least one of these is an easily heat transfer beam to which heat from the outside is easily transmitted, and includes a heat insulating member 8 attached to a portion exposed to the outside of the easy heat transfer beam along the longitudinal direction of the beam. The plywood 81 and the plate-like heat insulating material 82 are joined to each other, the plywood 81 is attached to the easy heat transfer beam, and another heat insulating material 23 is provided between the easy heat transfer beams in the adjacent building units 3. The heat insulating member 8 includes an extending portion that extends to a side where another heat insulating material 23 is provided in the heat transfer beam, and the other heat insulating material 23 is supported by the extending portion .

  According to such a configuration, since the heat insulating member 8 is attached to the easy heat transfer beam to which heat from the outside is easily transmitted, heat transfer from the easy heat transfer beam to the entire building unit 3 can be suppressed. . In addition, since it is only necessary to attach the heat insulating member 8 to the heat transfer beam, construction on site can be facilitated and construction cost can be reduced.

In the present invention, the heat transfer beam is preferably the lower beam 12 having a lower surface on the foundation 2 side of the building unit 3, and the heat insulating member 8 is preferably attached to the lower surface of the lower beam 12.
According to such a structure, since the heat insulation member 8 is attached to the lower beam 12 arrange | positioned just above the foundation 2 in the building unit 3 in which cold air tends to gather, a heat bridge countermeasure can be performed efficiently.

In the present invention, it is preferable that a bolt 83 for joining the lower beam 12 and the plywood 81 is provided, and a bolt hole 821 for inserting the bolt 83 is formed in the plate-like heat insulating material 82.
According to such a configuration, since the lower beam 12 and the plywood 81 can be joined by the bolt 83 through the bolt hole 821, the heat insulating member 8 can be easily attached to the lower beam 12.

In the present invention, it is preferable that the plate-like heat insulating material 82 contains an anti-anticide.
According to such a configuration, the ant barrier line can be formed by the heat insulating member 8.

In the present invention, it is preferable that the heat insulating member 8 has a width direction dimension substantially the same as the width direction dimension of the lower beam 12.
According to such a structure, since the heat insulation member 8 substantially contacts the lower beam 12, it can be constructed so as not to interfere with other building units.

The unit type building 1 of the present invention is constructed by combining the building unit 3 described above and another building unit in which a rectangular parallelepiped frame 13 is formed from the upper and lower beams 11 and 12 and the pillar 10. .
According to such a structure, there can exist an effect similar to the building unit 3 mentioned above.

[First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an overall configuration of a unit building 1 according to the first embodiment of the present invention.
As shown in FIG. 1, the unit type building 1 includes a lower floor part 4 composed of six lower floor building units 3 provided on a foundation 2, and 6 placed on the lower floor building unit 3. The upper floor part 6 which consists of an individual upper floor building unit 5, and the roof part (not shown) provided above the upper floor part 6 are provided.

In the lower floor part 4, each lower floor building unit 3 is adjacent to each other in the direction in which the short sides of the two lower floor building units 3 face each other, and two adjacent lower floor building units 3 are They are arranged along the direction intersecting the facing direction. In the upper floor portion 6, each upper floor building unit 5 is disposed on the upper portion of each lower floor building unit 3.
In addition, the two lower-floor building units 3 and the two upper-floor building units 5 on the front side in FIG. 1 and the two lower-floor building units 3 and the two upper-floor building units 5 in the middle are They are spaced apart by a predetermined distance to constitute a separating part 7. The separating portion 7 is closed by a plurality of wall panels 71.

FIG. 2 is a perspective view showing the framework 13 of the lower-floor building unit 3 and the upper-floor building unit 5.
As shown in FIG. 2, the lower-floor building unit 3 and the upper-floor building unit 5 include four pillars 10 erected at the four corners and four upper beams that connect the upper ends of these pillars 10 to each other. The frame 13 includes a ceiling beam 11 and four floor beams 12 as lower beams that connect the lower ends of the columns 10 to each other, and is formed in a substantially rectangular parallelepiped shape.

  In the lower-floor building unit 3 and the upper-floor building unit 5, the ceiling beams 11 are each composed of two long-side ceiling beams 11A and short-side ceiling beams 11B, and the floor beams 12 are each two long beams. It consists of the side floor beam 12A and the short side floor beam 12B. A plurality of ceiling beams (not shown) and a plurality of joists 32 (see FIG. 7) are bridged between the two long side ceiling beams 11A and between the two long side floor beams 12A. Has been. Further, the column 10, the ceiling beam 11, and the floor beam 12 are connected via a joint 14.

FIG. 3 is a view of the foundation 2 as viewed from above. In addition, in FIG. 3, the lower-floor building unit 3 is shown with the dashed-two dotted line.
The foundation 2 has a substantially rectangular frame cross section that protrudes toward the lower-floor building unit 3, and is formed in a lattice frame shape as shown in FIG. Each lower-floor building unit 3 is fixed to the foundation 2 by being joined with a bolt or the like through a joint 14 that connects the floor beam 12, and a slight gap is formed between the foundation 2 and the floor beam 12. Is provided. That is, the floor beam 12 has a lower surface on the foundation 2 side of the lower floor building unit 3. Further, the floor beam 12 is a steel member to which heat from the outside is easily transmitted, and corresponds to the easily heat transfer beam in the present invention.

And the heat insulation member 8 for beams is attached to the lower surface of 12 A of long side floor beams along the beam longitudinal direction. The beam heat insulating member 8 may be unitized by being attached to the long side floor beam 12A when manufacturing the lower floor building unit 3 at the factory. You may make it attach to the beam 12A.
In addition, in the foundation 2, foundation heat insulating members 9 are attached to both sides of the portion facing the floor beam 12 along the extending direction of the floor beam 12.

4 is a cross-sectional view taken along the line II of FIG. 5 is a cross-sectional view taken along line II-II in FIG.
As shown in FIGS. 4 and 5, a floor panel unit 20 on the lower floor is provided between the floor beams 12 of each lower floor building unit 3. Further, as shown in FIG. 5, the floor unit 21 on the lower floor is provided at the height level of the lower floor building unit 3 in the separating section 7. And the heat insulating material 22 is provided in the inside of the floor panel units 20 and 21, respectively.
As shown in FIG. 4, the long side floor beam 12 </ b> A is formed in a U-shaped cross section, and a heat insulating material 23 is provided between the long side floor beams 12 </ b> A in the adjacent lower floor building units 3.

FIG. 6 is a perspective view showing a joined state of the long-side floor beam 12A and the heat insulating member 8 for the beam.
As shown in FIGS. 4 to 6, the beam heat insulating member 8 as the heat insulating member is configured by joining a plywood 81 formed in a plate shape and a beam plate heat insulating material 82 with an adhesive or the like.
As shown in FIG. 6, the plywood 81 is formed with a hole 811 through which the threaded portion of the bolt 83 is inserted. Further, in the long side floor beam 12 </ b> A, a hole 121 for inserting the threaded portion of the bolt 83 is also formed at a position facing the hole 811. Further, as shown in FIGS. 4 and 5, the plate-like heat insulating material 82 for beams is formed with bolt holes 821 through which bolt heads are inserted at positions facing the respective holes 811 and 121. . The plywood 81 is attached to the lower surface of the long side floor beam 12A with bolts 83.
In addition, the plate-shaped heat insulating material 82 for beams as the plate-shaped heat insulating material contains an ant-proofing agent. Moreover, the width direction dimension of the heat insulation member 8 for beams is set to the width direction dimension substantially the same as the width direction dimension of the lower surface of 12 A of long side floor beams, as shown in FIG.

7 is a cross-sectional view taken along line III-III in FIG.
As shown in FIG. 7, the short side floor beam 12 </ b> B is formed in a U-shaped cross section, and a heat insulating material 30 is provided inside the short side floor beam 12 </ b> B. A letter-shaped counter beam 31 is provided. Further, a joist 32 spanning between the two long side floor beams 12A is in contact with the facing beam 31. Furthermore, a heat insulating material 33 is provided between the short side floor beams 12B in the adjacent lower floor building units 3.

FIG. 8 is a perspective view showing a joined state of the short side floor beam 12 </ b> B and the foundation heat insulating member 9.
As shown in FIGS. 7 and 8, the base heat insulating member 9 is formed by bonding two base plate heat insulating materials 91 and 92 formed in plate shapes having different sizes with an adhesive or the like. Yes. The heat insulating member 9 for the foundation is attached to the foundation 2 so as to seal a gap between the foundation 2 and the short side floor beam 12B so that the short side floor beam 12B is not exposed to the outside.

According to this embodiment, there are the following effects.
(1) Since the beam heat insulating member 8 is attached to the long side floor beam 12A where heat from the outside is easily transmitted, the transmission of heat from the long side floor beam 12A to the entire lower floor building unit 3 is suppressed. it can. Moreover, since it is only necessary to attach the heat insulating member 8 for the beam to the long side floor beam 12A, it is possible to facilitate the construction at the site and reduce the construction cost.
(2) Since the heat insulation member 8 for a beam is attached to the long side floor beam 12A arranged just above the foundation 2 in the lower floor building unit 3 where cold air is likely to gather, measures against a thermal bridge can be efficiently performed.

(3) Since the long side floor beam 12A and the plywood 81 can be joined by the bolt 83 through the bolt hole 821, the heat insulating member 8 for a beam can be easily attached to the long side floor beam 12A.
(4) Since the plate-shaped heat insulating material 82 for beams contains a termite-proofing agent, it is possible to form a termite-proof line with the heat-insulating member 8 for beams.

(5) Since the beam heat insulating member 8 is substantially entirely in contact with the long side floor beam 12A, it can be constructed so as not to interfere with other building units.
(6) The heat insulating member 9 for the foundation seals the gap between the foundation 2 and the short-side floor beam 12B, and is attached to the foundation 2 so that the short-side floor beam 12B is not exposed to the outside. Heat transfer from the floor beam 12B to the entire lower floor building unit 3 can be suppressed. Moreover, since it is only necessary to attach the heat insulating member 9 for the foundation to the foundation 2, the construction at the site can be facilitated and the construction cost can be reduced.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.
FIG. 9 is a view of the foundation 2A according to the second embodiment of the present invention as viewed from above. In addition, in FIG. 9, the lower-floor building unit 3 is shown with the dashed-two dotted line. 10 is a cross-sectional view taken along line IV-IV in FIG.
In the following description, parts that have already been described are assigned the same reference numerals and description thereof is omitted.

In the said 1st Embodiment, the heat insulation member 8 for beams was attached to the lower surface of 12 A of long side floor beams in the adjacent lower-floor building unit 3 along the beam longitudinal direction. On the other hand, in this embodiment, the unit type building 1A includes a foundation 2A having a shape different from that of the foundation 2 in the first embodiment, and in this foundation 2A, a long side floor in an adjacent lower floor building unit 3 is provided. The difference is that the foundation heat insulating member 9 is attached to both sides of the portion facing the beam 12A along the extending direction of the long side floor beam 12A.
In addition, the heat insulation member 8 for beams is attached to the lower surface of the long side floor beam 12A in the separating part 7 similarly to the first embodiment.
In this embodiment as well, the same operations and effects as in the first embodiment can be achieved.

[Modification of Embodiment]
The present invention is not limited to the above embodiments.
For example, in each of the above embodiments, the heat transfer beam is the long side floor beam 12A having a lower surface on the foundation 2 side of the lower floor building unit 3, and the heat insulating member 8 is attached to the lower surface of the long side floor beam 12A. It was. On the other hand, for example, the heat transfer beam may be an upper beam having an upper surface on the roof side of the building unit, and the heat insulating member may be attached to the upper surface of the upper beam. In short, the easy heat transfer beam may be at least one of the upper and lower beams, and the heat insulating member may be attached to a portion exposed to the outside of the easy heat transfer beam along the beam longitudinal direction.

In each of the above-described embodiments, the beam heat insulating member 8 is configured by joining a plate-like plywood 81 and a beam plate-like heat insulating material 82 with an adhesive or the like, and the plywood 81 is formed of the long side floor beam 12A. It was attached to the lower surface with bolts 83. On the other hand, for example, the heat insulating member may be attached to at least one of the upper and lower beams with an adhesive or the like.
In each said embodiment, although the plate-shaped heat insulating material 82 for beams contained the termite-proof agent, it does not need to contain the termite-proof agent.

  In each said embodiment, the heat insulation member 8 for beams was made into the width direction dimension substantially the same as the width direction dimension of 12 A of long side floor beams. On the other hand, for example, the heat insulating member may have a width direction dimension that is larger than the width direction dimension of at least one of the upper and lower beams, or may have a smaller width direction dimension. In short, the heat insulating member only needs to be attached along the beam longitudinal direction to a portion exposed to the outside of the heat transfer beam.

The perspective view which shows the whole structure of the unit type building which concerns on 1st Embodiment of this invention. The perspective view which shows the framework of the lower-floor building unit in the said embodiment, and an upper-floor building unit. The figure which looked at the foundation in the embodiment from the upper side. The II sectional view taken on the line of FIG. 3 in the said embodiment. The II-II sectional view taken on the line of FIG. 3 in the said embodiment. The perspective view which shows the joining state of the long side floor beam in the said embodiment, and the heat insulation member for beams. The III-III sectional view taken on the line of FIG. 3 in the said embodiment. The perspective view which shows the joining state of the short side floor beam in the said embodiment, and the heat insulation member for foundations. The figure which looked at the foundation concerning a 2nd embodiment of the present invention from the upper part side. The IV-IV sectional view taken on the line of FIG. 9 in the said embodiment.

Explanation of symbols

1, 1A ... Unit type building 2, 2A ... Foundation 3 ... Lower floor building unit (building unit)
8 ... Insulating members for beams (insulating members)
10 ... pillar 11 ... ceiling beam (upper beam)
12 ... Floor beam (lower beam)
81 ... Plywood 82 ... Plate insulation for beams (Plate insulation)
83 ... bolt 821 ... bolt hole.

Claims (6)

A rectangular parallelepiped frame is formed from the upper and lower beams and columns, and it is an adjacent building unit,
At least one of the upper and lower beams is an easily heat transfer beam to which heat from the outside is easily transmitted,
A heat insulating member attached along the longitudinal direction of the beam to a portion exposed to the outside of the heat transfer beam;
The heat insulating member is formed by joining the plywood and the plate-like insulation material, the plywood is mounted et be in the easily heat transfer beam,
Another heat insulating material is provided between the heat transfer beams in adjacent building units,
The heat insulating member includes an extending portion that extends to a side where the other heat insulating material is provided in the heat transfer beam.
Said another heat insulating material is supported by said extension part, The building unit characterized by the above-mentioned . The building unit according to claim 1,
The heat transfer beam is a lower beam having a lower surface on the foundation side of the building unit,
The building unit, wherein the heat insulating member is attached to a lower surface of the lower beam. The building unit according to claim 2,
A bolt for joining the lower beam and the plywood;
The plate unit is formed with a bolt hole through which the bolt is inserted. The building unit according to claim 3,
A building unit characterized in that the plate-like heat insulating material contains an anti-anticide. The building unit according to claim 4,
The said heat insulation member is made into the width direction dimension of the said lower beam substantially the same width direction dimension, The building unit characterized by the above-mentioned. The building unit according to any one of claims 1 to 5,
A unit type building that is built in combination with other building units in which a rectangular parallelepiped frame is formed from upper and lower beams and columns.

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