JP2012154063A - External wall heat insulation structure of unit type building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external wall heat insulation structure of a unit type building, capable of improving workability when constructing an external wall part while improving heat insulation at the external wall part.SOLUTION: To a building unit 20, a column external wall unit 31 and a main external wall unit 33 are attached. The column external wall unit 31 is provided on a column set part 34, and the main external wall unit 33 is arranged side by side with the column external wall unit 31. The column external wall unit 31 includes a column heat insulation part and a column external wall surface material, and a beam external wall unit 32 includes a beam heat insulation part and a beam external wall surface material. The column heat insulation part includes an outdoor side column heat insulation material arranged on the outdoor side of respective columns of the column set part, and an extension heat insulation material extended from the outdoor side column heat insulation material toward the indoor side. The column external wall unit 31 is assembled to the building unit 20 in the state that the extension heat insulation material and a main heat insulation material are continued by inserting the extension heat insulation material between the column 21 and a main heat insulation part.

Description

  The present invention relates to an outer wall heat insulating structure of a unit type building.

  In a building such as a house, a heat insulating structure is adopted for the outer wall portion, and heat insulating properties are given to the outer wall portion. As the heat insulation method, a filling heat insulation method in which a heat insulating material such as glass wool is provided between columns is known.

  However, in such a filling thermal insulation method, the pillar portion becomes a thermal bridge, which causes a decrease in thermal insulation. In particular, when the pillar portion is formed of a metal material such as iron, the problem that the pillar portion becomes a thermal bridge becomes significant. On the other hand, it has been proposed that a heat insulating material is provided around the pillar portion from the outdoor side, and that an outer heat insulating construction method for imparting heat insulation to the portion is used in combination (for example, see Patent Document 1). .

JP 2002-155588 A

  By the way, a unit type building in which a plurality of building units are combined has generally existed in the past, and in this building unit, the building unit is manufactured in advance at the factory, and the man-hour is extremely reduced at the installation site. The cost reduction effect can be obtained. In the above-mentioned Patent Document 1, it is described that the above-described outer heat insulating method is used in combination in such a unit type building.

  However, in the case of a unit type building, a column aggregate portion in which a plurality of columns are aggregated is formed by a combination of building units. In this case, the pillar heat insulating part cannot be attached to the pillar assembly part in advance at the factory, and the attachment work must be performed at the installation site. Therefore, in the construction site, a field work of attaching the column heat insulating portion and the outer wall panel to the column assembly portion is necessary, and there is room for improvement from the viewpoint of reducing the number of construction steps on site.

  Then, this invention makes it the main objective to provide the outer wall heat insulation structure of the unit type building which can improve the workability at the time of construction | assembly of a building outer wall part, aiming at the heat insulation improvement in a building outer wall part.

  In order to solve the above-mentioned problem, the outer wall heat insulating structure of the unit type building of the first invention is an outer wall heat insulating structure of a unit type building constructed by arranging a plurality of building units composed of columns and large beams, and the unit type building A building outer wall portion attached to the first outer wall portion provided in a column assembly portion where the columns of the plurality of building units gather, and a second outer wall portion provided side by side on the first outer wall portion, The first outer wall portion is a heat insulating wall unit having a first heat insulating portion provided around the pillars of the column assembly portion and a first outer wall surface material provided on the outdoor side thereof, and the second outer wall portion. Is provided with a second heat insulating portion provided between the columns of the unit side surface on the outer wall mounting side in the building unit, and a second outer wall surface material provided on the outdoor side thereof, and the first heat insulating portion includes the column. Outdoor of each pillar adjacent to the gathering section In the outdoor side column heat insulating material provided straddling those columns in, and an extending heat insulating material extending from the outdoor side column heat insulating material to the indoor side on the side opposite to the opposing surface side of each of the adjacent columns In the building unit, the pillar and the side end portion of the second heat insulating portion are provided apart from each other, and the first outer wall portion is separated from the side end portion of the pillar and the second heat insulating portion. The extension heat insulating material is inserted into the portion, and the first heat insulating portion and the second heat insulating portion are continuously assembled to the building unit.

  According to the first invention, in the unit type building, the first outer wall portion and the second outer wall portion can provide suitable heat insulation for the column aggregate portion and the other portions. Particularly in the column assembly portion, the outdoor side column heat insulating material and the extended heat insulating material are provided so as to surround each column of the column assembly portion, and the first heat insulating portion having these heat insulating materials in the first outer wall portion is provided. The second heat insulation portion of the second outer wall portion is in a continuous state. For this reason, the pillar part becomes a heat bridge and heat transfer occurs indoors and outdoors, and a gap that impairs heat insulation is formed between the first heat insulating part and the second heat insulating part in the outer wall of the building. Can be suppressed.

  Moreover, since the 1st outer wall part provided in a pillar assembly part is unitized as a heat insulation wall unit, when carrying out factory pre-attachment of the 2nd outer wall part and carrying out field retrofitting of the 1st outer wall part, it is a building construction site. The first outer wall portion can be easily attached. In other words, the installation work of the first outer wall part to the column assembly part composed of a plurality of building units must be performed at the building construction site, and the installation work of the first outer wall part is facilitated to facilitate the installation work at the building construction site. It is possible to improve the workability.

  As a result of the above, it is possible to improve the workability in constructing the outer wall while improving the heat insulating property of the outer wall.

  In the second invention, in the first outer wall portion, a long trunk edge member is attached to the inside of the first outer wall surface material, and the outdoor side column heat insulating material is attached to the trunk edge member. A ventilation layer is formed between the outdoor side column heat insulating material and the first outer wall surface material.

  According to the second invention, moisture can be released to the outside of the wall from between the outdoor side column heat insulating material and the first outer wall surface material through the ventilation layer, so that the first outer wall portion is deteriorated by the moisture. Can be suppressed.

  Also in the second outer wall portion, a trunk edge member is attached to the inside of the second outer wall surface material, and a ventilation layer is formed between the second heat insulating portion and the second outer wall surface material. It is preferable. Thereby, it can suppress that a 2nd outer wall part deteriorates with moisture.

  In 3rd invention, the said 1st outer wall part has a column gap heat insulating material extended in the indoor side from the said outdoor side column heat insulating material in the clearance gap part between each said adjacent pillar.

  According to 3rd invention, the heat insulation suitable for the clearance gap part between pillars of a pillar aggregate | assembly part is attained by a pillar clearance heat insulating material. And since this heat insulation is implement | achieved with the attachment of a 1st outer wall part (heat insulation wall unit), it can avoid that workability | operativity falls when heat-insulating the clearance gap between pillars suitably.

  In 4th invention, in the said 2nd outer wall part, the said 2nd heat insulation part is preceded with respect to the said building unit before the assembly | attachment of several said building units, The said 2nd outer wall surface material is After the assembly of the plurality of building units, the second heat insulating portion is retrofitted to the second outer wall portion, and the first outer wall surface material is the second outer wall surface of the second outer wall portion. It is flush with the material or protrudes outward from the second outer wall surface material.

  According to the fourth invention, since the second outer wall surface material of the second outer wall portion is a retrofitted configuration, it is assumed that the building unit is transported from the unit manufacturing factory to the building construction site by a truck or the like. , It is possible to suppress the situation that the outer dimensions of the transported goods are subject to transport restrictions.

  Moreover, about a 1st outer wall part, a 1st outer wall surface material is provided in the 2nd outer wall surface of the 2nd outer wall part so that it may be flush | planar or may protrude outward rather than a 2nd outer wall surface material. However, since the first outer wall part is a heat-insulating wall unit retrofitted on site, there is no limit on the amount of overhang, and the first outer wall part can be assembled to the building unit with a high degree of freedom.

  In 5th invention, the said building outer wall part has a 3rd outer wall part provided in the outdoor side of the large beam of the said building unit, and the said 3rd outer wall part is the 3rd heat insulation part provided in the outdoor side of the said large beam. And the 3rd outer wall surface material provided in the outdoor side, In the building unit, the 2nd outer wall part and the 3rd outer wall part are attached up and down side by side.

  The second outer wall portion has a second heat insulating portion provided between the pillars of the unit side surface in the building unit. According to such a configuration, the second heat insulating portion is It will be provided between the beams (between the ceiling beam and the floor beam). That is, the second outer wall portion does not impart heat insulation to the upper and lower large beams. In this regard, according to the fifth invention, by attaching the third outer wall portion to the large beam of the building unit, it is possible to impart high heat insulation performance to the building unit including the large beam portion. In this case, the extension heat insulating material of the first outer wall portion is inserted between the pillar of the column assembly portion and the third heat insulating portion of the third outer wall portion, so that the first heat insulating portion and the third heat insulating portion are continuous. It will be provided in the state. Therefore, it can suppress that the clearance gap which impairs heat insulation is formed between a 1st heat insulation part and a 3rd heat insulation part.

  In addition, it is preferable that the said 3rd outer wall part is assembled | attached with respect to the building unit in the state which the 2nd heat insulation part and the 3rd heat insulation part continued. In this case, it can suppress that the clearance gap which impairs heat insulation in a building outer wall part is formed between a 2nd heat insulation part and a 3rd heat insulation part. That is, the heat insulation performance of the building outer wall can be further enhanced.

  In a sixth aspect of the invention, the unit building is a multi-story building, and the third heat insulating part of the third outer wall portion is the upper floor building unit and the lower floor building unit adjacent to each other in the upper and lower sides. It is provided so as to straddle the lower large beam of the building unit and the upper large beam of the lower floor building unit.

  According to the sixth invention, the third outer wall portion enables suitable heat insulation for the beam aggregate portion in which the large beams of the upper and lower building units are aggregated.

  In addition, it is preferable that the said 3rd outer wall part has a beam clearance heat insulation part extended in an indoor side from the said 3rd heat insulation part in the clearance gap part between the said lower side large beam and the said upper side large beam. In this case, the heat insulation suitable for the gap portion between the beams in the beam assembly portion can be achieved by the beam gap heat insulation portion.

  In 7th invention, the said 3rd heat insulation part is after the assembly | attachment of the front heat insulation part preceded on the outdoor side of the said girder of the said building unit before the assembly | attachment of several said building units, and the said several building units And a retrofitted heat insulating part retrofitted on the outdoor side of the front heat insulating part together with the third outer wall surface material.

  When the thickness of the third heat insulation part is increased to improve the heat insulation performance, when the factory of the third heat insulation part is installed, the building unit has a transportation restriction during transportation because the third heat insulation part is attached. There is concern about exceeding. On the other hand, according to the seventh aspect, it is possible to attach the front heat insulating portion in advance so as not to exceed the transportation limit, and to attach the rear heat insulating portion after the completion of transportation. Therefore, the situation where a building unit will be restricted to transportation can be suppressed, without reducing the heat insulation performance of the 3rd heat insulation part.

  In an eighth aspect of the invention, an indoor wall portion provided on the indoor side of the pillar assembly portion is provided, and the indoor wall portion is provided on an indoor heat insulating portion provided on the indoor side of each pillar of the pillar assembly portion, and on the indoor side thereof. The indoor heat insulating portion is provided across the columns on the indoor side of the columns adjacent to each other in the column assembly portion.

  According to the eighth invention, since the pillar portion is thermally insulated and reinforced from the indoor side by the indoor wall insulator, the effect of suppressing heat transfer from occurring indoors and outdoors can be further enhanced because the pillar portion becomes a thermal bridge. .

  In a ninth invention, the unit type building is provided with a vibration damping device for reducing a vibration generated in the upper large beam of the building unit, and the vibration damping device is provided on the upper side when the upper large beam is swung. The amplitude of the large beam is reduced so as to be smaller than the separation distance between the column and the side end of the second heat insulating portion in the building unit.

  According to the ninth aspect, even if the upper beam is swung relative to the lower beam in the event of an earthquake, the vibration is controlled so that the column comes into contact with the side end portion of the second heat insulating portion. It can be suppressed by the device. Here, when a support material such as a wooden frame that supports the extended heat insulating material in the first outer wall unit is inserted between the column and the side end portion of the second heat insulating portion together with the extended heat insulating material, It can be avoided that the pillar contacts the support material and the support material is deformed or broken with the shaking. That is, the first outer wall unit can be prevented from being deformed or damaged.

The schematic perspective view which shows the structure of the two building units in this embodiment, and the building outer wall part attached to them. The cross-sectional view around the column outer wall unit and the main outer wall unit in the building unit. The exploded cross-sectional view of the column outer wall unit and the main outer wall unit periphery in a building unit. The cross-sectional view around a pillar outer wall unit and a beam outer wall unit in a building unit. The exploded cross-sectional view of the periphery of a column outer wall unit and a beam outer wall unit in a building unit. The longitudinal cross-sectional view of the column outer wall unit periphery in a building unit. The longitudinal cross-sectional view of the main outer wall unit and beam outer wall unit periphery in a building unit. The building unit front view around a damping device. Explanatory drawing for demonstrating the amplitude of a ceiling girder at the time of a vibration generation. The longitudinal cross-sectional view which shows the other example of the main outer wall unit in a building unit, and a beam outer wall unit periphery. The cross-sectional view which shows another example of the column outer wall unit and main outer wall unit periphery in a building unit.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In the present embodiment, a building such as a house is constructed as a two-storey unit type building by a steel frame unit construction method, and each floor portion is configured by arranging a plurality of building units. The unit-type building has an outer wall body that partitions the interior and the exterior, and the outer wall body is formed by attaching the building outer wall portion to a housing such as a pillar or a large beam of the building unit. Here, the structure of a building unit and a building outer wall part is demonstrated, referring FIG. FIG. 1 is a schematic perspective view showing the configuration of two building units 20 and a building outer wall 30 attached to them.

  As shown in FIG. 1, the building unit 20 includes columns 21 arranged at the four corners, a ceiling beam 22 connected to the upper end (upper end) of the column 21, and the lower end (lower end) of the column 21. The column 21, the ceiling beam 22 and the floor beam 23 form a rectangular parallelepiped skeleton (frame). The column 21 is made of a square tube-shaped square steel. Further, the ceiling beam 22 and the floor beam 23 are made of channel steel having a U-shaped cross section, and are arranged toward the inside of the unit so that the groove opening sides face each other.

  In the building unit 20, a plurality of ceiling beams 25 are bridged between the ceiling large beams 22 extending along the long side portion (girder surface) and facing each other at a predetermined interval. Similarly, a plurality of floor beams 26 are bridged at predetermined intervals between the large floor beams 23 that extend along the long side portion and face each other. The ceiling beam 25 and the floor beam 26 extend in parallel to the ceiling beam 22 and the floor beam 23 on the short side (wife side) at the same interval. The ceiling beam 25 and the floor beam 26 are each made of lip groove steel.

  The building outer wall 30 is attached to the column 21, the ceiling girder 22, and the floor girder 23 arranged on the outdoor side in the side surface of the building unit 20. The building outer wall 30 is formed between a column outer wall unit 31 attached to the column 21, a beam outer wall unit 32 attached to the ceiling beam 22 or the floor beam 23, and the upper and lower beam outer wall units 32. And a main outer wall unit 33 arranged side by side on the column outer wall unit 31.

  The column outer wall unit 31 is provided in a column aggregate portion 34 in which the columns 21 of adjacent building units 20 are aggregated. The column outer wall unit 31 includes a connection portion between the ceiling beam 22 and the floor beam 23 to the column 21 of the column assembly 34. Along the vertical direction. The beam outer wall unit 32 extends in the horizontal direction along the ceiling beam 22 or the floor beam 23.

  The column outer wall unit 31 corresponds to a heat insulating wall unit and constitutes a first outer wall portion. The beam outer wall unit 32 constitutes a third outer wall portion, and the main outer wall unit 33 constitutes a second outer wall portion. In other words, the main outer wall unit 33 is an outer wall portion using a filling heat insulating method, and the column outer wall unit 31 and the beam outer wall unit 32 are outer wall portions using an outer heat insulating method. For this reason, the building outer wall portion 30 is an outer wall portion using both the filling heat insulation method and the outer heat insulation method.

  The structure of the part to which the building outer wall part 30 is attached in the side part of the building unit 20 will be described. First, a wall structure of a portion between the ceiling beam 22 and the floor beam 23 (portion other than the joint as viewed in the vertical direction) will be described with reference to FIGS. FIG. 2 is a transverse cross-sectional view around the column outer wall unit 31 and the main outer wall unit 33 of the building unit 20, and FIG. 3 is an exploded view of FIG. A boundary line between adjacent building units 20 is indicated by a docking line DL.

  As shown in FIGS. 2 and 3, the main outer wall unit 33 is provided on the main heat insulating part 41 provided so as to extend along the side surface of the building unit 20, and on the outdoor side of the main heat insulating part 41. Main outer wall surface material 42. The main heat insulating portion 41 corresponds to the second heat insulating portion, and the main outer wall surface material 42 corresponds to the second outer wall surface material.

  The main heat insulating portion 41 is disposed between the two pillars 21 on one side surface of the building unit 20, and is separated from the pillars 21 of the pillar assembly portion 34 toward the side. The main heat insulating portion 41 includes a vertical frame member 44 extending in the vertical direction, a main inner wall surface member 45 disposed on the indoor side of the vertical frame member 44, and a wall base surface member 46 disposed on the outdoor side of the vertical frame member 44. And a filling heat insulating material 47 provided between the main inner wall surface material 45 and the wall base surface material 46. The main inner wall material 45 is formed of gypsum board, and the wall base surface material 46 is formed in a plate shape by plywood, and is fixed to the vertical frame member 44, respectively. The vertical frame member 44 is a long member such as a stud formed of wood, and a plurality of the vertical frame members 44 are arranged horizontally and at predetermined intervals between the ceiling beam 22 and the floor beam 23.

  The filled heat insulating material 47 is formed in a felt shape by a fiber heat insulating material such as glass wool (for example, a heat insulating material having a thermal conductivity λ of 0.38), and a vertical frame material between the ceiling beam 22 and the floor beam 23. 44 so as to extend along 44. The filled heat insulating material 47 is separated from the main inner wall surface material 45 to the outdoor side, and the separated portion is an indoor side ventilation layer 48.

  The main outer wall surface material 42 is formed of an exterior material such as a ceramic siding board, and forms an outdoor surface of the building outer wall portion 30. A main trunk edge member 43 is attached to the indoor side surface of the main outer wall surface material 42. The main trunk edge member 43 is provided between the main heat insulating portion 41 and the main outer wall surface material 42, and supports the main outer wall surface material 42 at a position separated from the main heat insulating portion 41 to the outdoor side. The portion is a main ventilation layer 52 disposed on the outdoor side of the main heat insulating portion 41. The main trunk edge member 43 is a long wooden material extending in the vertical direction, and a plurality of main trunk edge members 43 are provided along the main heat insulating portion 41 at predetermined intervals. The main trunk edge member 43 serves as a ventilation trunk edge and is fixed to the main heat insulating portion 41. For example, a nail or the like is driven into the wall base material 46 from the outdoor side through the main outer wall material 42 and the main trunk edge member 43.

  The column outer wall unit 31 includes a column heat insulating portion 61 provided around the columns of the column aggregate portion 34 and a column outer wall surface material 62 provided on the outdoor side of the column heat insulating portion 61. The column heat insulating portion 61 corresponds to the first heat insulating portion, the column outer wall surface material 62 corresponds to the first outer wall surface material, and the column body edge member 63 corresponds to the body edge member.

  The column outer wall surface material 62 is formed of an exterior material such as a ceramic siding board in the same manner as the main outer wall surface material 42, and forms the outdoor surface of the building outer wall portion 30 on the same plane as the main outer wall surface material 42. ing. That is, the column outer wall surface material 62 is provided flush with the main outer wall surface material 42. A column body edge member 63 is attached to the indoor side surface of the column outer wall surface material 62. The column body edge member 63 is provided between the column outer wall surface material 62 and the column 21, and is a long wooden material extending in the vertical direction in the same manner as the main body edge member 43. It is attached to the indoor side. The column trunk edge member 63 is disposed between the column outer wall surface material 62 and each column 21 of the column assembly portion 34, and the column trunk edge members 63 are arranged side by side and separated from each other.

  The column heat insulating portion 61 extends along each column 21 of the column assembly portion 34. The column heat insulating portion 61 includes an outdoor side column heat insulating material 66 disposed on the outdoor side of each column 21 of the column aggregate portion 34, and an outdoor side column on the side opposite to the mutually opposing surfaces of the columns adjacent to the column aggregate portion 34. An extending heat insulating material 67 extending from the heat insulating material 66 to the indoor side, a column gap heat insulating material 68 extending from the outdoor side column heat insulating material 66 to the indoor side at a gap portion between the adjacent columns 21, and extending It has an extending plate 69 provided on the main outer wall unit 33 side of the heat insulating material 67 and extending from the column outer wall surface material 62 to the outdoor side.

  The outdoor side column heat insulating material 66, the extended heat insulating material 67, and the column gap heat insulating material 68 are formed of a foamed plastic heat insulating material such as hard urethane foam (for example, a heat insulating material having a thermal conductivity λ of 0.02). It is fixed to the column body edge member 63. The extending plate material 69 is formed of a heat-insulating wooden plywood and is fixed to the column wall surface material 62.

  The outdoor side column heat insulating material 66 is disposed between each column 21 of the column assembly 34 and the column outer wall surface material 62 in a state of being separated from the column outer wall surface material 62 toward the indoor side, and the separated portion is a column ventilation. Layer 65 is designated. The outdoor-side column heat insulating material 66 extends along the outdoor side surface of each column 21 of the column assembly portion 34 and is in a state straddling each column 21 of the column assembly portion 34.

  The extended heat insulating material 67 is provided at each of both side ends of the outdoor side column heat insulating material 66 and extends along the side surface of the column 21 on the main outer wall unit 33 side. In this case, the extended heat insulating material 67 enters between the column 21 and the main heat insulating portion 41 adjacent to the column 21 between the ceiling beam 22 and the floor beam 23. The column gap heat insulating material 68 is disposed substantially at the center of the outdoor side column heat insulating material 66, and extends along each side surface facing each other in each column 21 of the column assembly portion 34. In this case, the column gap heat insulating material 68 is in a state of entering the gap between the columns 21 of the column assembly portion 34.

  Here, the extended plate material 69 extends along the extended heat insulating material 67 between the extended heat insulating material 67 and the main heat insulating portion 41, and is in contact with both the extended heat insulating material 67 and the main heat insulating portion 41. Yes. In this case, the extending plate material 69 is in contact with both the extending heat insulating material 67 and the main heat insulating portion 41. That is, the column heat insulating portion 61 of the column outer wall unit 31 is arranged in a state of being continuous with the main heat insulating portion 41 of the main outer wall unit 33. Therefore, it can suppress that the clearance gap part which impairs heat insulation in the building outer wall part 30 is formed between the column heat insulation part 61 and the main heat insulation part 41. FIG.

  The column outer wall unit 31 is attached to the column aggregate portion 34 by fixing the column trunk edge member 63 to the column 21 of the column aggregate portion 34. For example, a nail or the like is driven into the column 21 from the indoor side through the column outer wall surface material 62 and the column trunk edge member 63.

  In addition to the building outer wall 30, an indoor wall unit 71 is attached to the column assembly 34. The indoor wall unit 71 includes an indoor side column heat insulating material 72 provided on the indoor side of each column 21 of the column assembly 34 and a column inner wall surface material 73 provided on the indoor side of the indoor side column heat insulating material 72. And have. The indoor side column heat insulating material 72 is in a state straddling the columns 21 of the column assembly portion 34. In this case, the extension plate material 69 and the extension heat insulating material 67 of the column outer wall unit 31 extend to the column inner wall surface material 73 of the indoor wall unit 71, and the respective end surfaces are in contact with the outdoor side surface of the column inner wall surface material 73. Yes.

  Next, the wall structure of a portion having the ceiling beam 22 (a joint portion as viewed in the vertical direction) will be described with reference to FIGS. 4 and 5. 4 is a cross-sectional view around the column outer wall unit 31 and the beam outer wall unit 32 in the building unit 20, and FIG. 5 is an exploded view of FIG.

  The column outer wall unit 31 shown in FIGS. 4 and 5 is the same unit as the column outer wall unit 31 shown in FIGS. 2 and 3, but the cross-sectional shape is different between the ceiling beam 22 portion and the other portions. It has become. Moreover, the structure of the part containing the ceiling girder 22 and the part containing the floor girder 23 is the same only by turning upside down.

  As shown in FIGS. 4 and 5, in the column outer wall unit 31, the extended plate material 69 and the extended heat insulating material 67 are not in a state of entering between the ceiling beam 22 and the floor beam 23, but the roof of the ceiling beam 22. Stays outside. In this case, the distal end portions of the extended plate material 69 and the extended heat insulating material 67 are in contact with the outdoor side surface of the ceiling beam 22. The indoor side of the ceiling beam 22 is a ceiling back space, and the indoor wall unit 71 is not provided in the ceiling back space.

  On the outdoor side of the ceiling beam 22, a beam outer wall unit 32 is disposed on the side of the column outer wall unit 31. The beam outer wall unit 32 includes a beam heat insulating portion 75 provided on the outdoor side of the ceiling large beam 22 and a beam outer wall surface material 76 provided on the outdoor side of the beam heat insulating portion 75. The beam heat insulating portion 75 includes a front heat insulating portion 77 attached to the ceiling beam 22 and a post heat insulating portion 78 disposed on the outdoor side of the front heat insulating portion 77 and attached to the front heat insulating portion 77. Have. The beam heat insulating portion 75 corresponds to the third heat insulating portion, and the beam outer wall surface material 76 corresponds to the third outer wall surface material.

  The leading heat insulating portion 77 extends along the outdoor side surface of the ceiling girder 22 and is spaced apart from the column 21 of the column assembly 34 to the side. The leading heat insulating portion 77 is fixed to the outdoor surface of the ceiling beam 22 and extends in the vertical direction, the wall base surface material 82 disposed on the outdoor side of the vertical frame material 81, the ceiling beam 22 and the wall bottom. And a front heat insulating material 83 provided between the ground materials 82. The wall foundation surface material 82 is formed in a plate shape by plywood similarly to the wall foundation surface material 46 of the main outer wall unit 33, and is disposed flush with the wall foundation surface material 46. The vertical frame member 81 is a long material formed of wood or the like, similarly to the vertical frame member 44 of the main outer wall unit 33, and a plurality of the vertical frame members 81 are arranged at predetermined intervals in the horizontal direction. The leading heat insulating material 83 is formed of a foamed plastic heat insulating material similarly to the column heat insulating portion 61, and is disposed between the vertical frame materials 81.

  The beam outer wall surface material 76 is formed of an exterior material such as a ceramic siding board in the same manner as the main outer wall surface material 42, and forms the outdoor surface of the building outer wall portion 30 on the same plane as the column outer wall surface material 62. ing. A beam trunk edge member 84 is attached to the outdoor side surface of the beam outer wall surface material 76. The beam trunk edge member 84 is provided between the front heat insulating portion 77 and the beam outer wall surface material 76, and is a long wooden material extending in the vertical direction in the same manner as the main trunk edge member 43. It is attached to the indoor side. A plurality of beam trunk edge members 84 are provided side by side and at predetermined intervals, and support the outer wall surface material 76 of the beam by separating it from the front heat insulating portion 77 to the outdoor side.

  The post heat insulating portion 78 is formed of a foamed plastic heat insulating material similarly to the column heat insulating portion 61, and is attached to the beam trunk edge member 84 between the beam outer wall surface material 76 and the front heat insulating portion 77. The retrofitted heat insulating portion 78 is separated from the beam outer wall surface material 76 toward the indoor side, and the separated portion serves as a beam ventilation layer 85.

  Here, the extended heat insulating material 67 and the extended plate material 69 of the column outer wall unit 31 are inserted between the column 21 of the column assembly portion 34 and the tip heat insulating portion 77 of the beam outer wall unit 32. The extended plate 69 is in contact with the tip heat insulating portion 77. In this case, the column heat insulating portion 61 of the column outer wall unit 31 is arranged in a state of being continuous with the tip heat insulating portion 77 of the beam outer wall unit 32. Therefore, it can suppress that the clearance gap part which impairs heat insulation is formed between the column heat insulation part 61 and the beam heat insulation part 75. FIG.

  Then, the attachment procedure of the building outer wall part 30 (wall units 31-33) with respect to the building unit 20 is demonstrated, referring FIG. 6, FIG. FIG. 6 is a longitudinal sectional view around the pillar outer wall unit 31 in the building unit 20, and FIG. 7 is a longitudinal sectional view around the main outer wall unit 33 and the beam outer wall unit 32 in the building unit 20. In FIG. 6, (a) shows an exploded view of the building unit 20, the main outer wall unit 33, and the beam outer wall unit 32, and (b) shows a state in which they are assembled. In FIG. 7, (a) shows an exploded view of the building unit 20 and the pillar outer wall unit 31, and (b) shows a state in which they are assembled.

  The building unit 20 is manufactured at a unit manufacturing factory. In the unit manufacturing factory, the main heat insulating portion 41 of the main outer wall unit 33 and the tip heat insulating portion 77 of the beam outer wall unit 32 are attached to the building unit 20, respectively. In this case, as shown to Fig.6 (a), the filling heat insulating material 47 of the main heat insulation part 41 and the front heat insulating material 83 of the front heat insulating part 77 are arrange | positioned adjacent to the upper and lower sides, and have become the mutually continuous state. In this case, it can be avoided that a gap is formed between the filling heat insulating material 47 and the leading heat insulating material 83 and the heat insulation in the building outer wall 30 is impaired.

  The building unit 20 is transported from the unit manufacturing factory to the building construction site by a truck or the like with the main heat insulating portion 41 and the front heat insulating portion 77 attached. After the plurality of building units 20 are assembled at the building construction site, as shown in FIG. 6 (b), the main outer wall surface material 42 of the main outer wall unit 33 and the retrofitted heat insulating portion of the beam outer wall unit 32. 78 and the beam outer wall surface material 76 are attached to the building unit 20. In this case, the main outer wall surface material 42 and the beam outer wall surface material 76 form an outer wall surface on the same plane. That is, these outer wall surface materials 42 and 76 are provided flush with each other. Further, the main ventilation layer 52 of the main outer wall unit 33 and the beam ventilation layer 85 of the beam outer wall unit 32 communicate with each other in the vertical direction.

  In addition, since the pre-insulated heat insulator 83 is attached to the outdoor side surface of the ceiling beam 22 at the unit manufacturing factory, the thickness of the pre-insulated heat insulator 83 must be smaller than that of the filled heat insulator 47 due to the size of transportation restrictions. A retrofitted heat insulating portion 78 is attached from the outdoor side so as to overlap the material 83. For this reason, it can avoid more reliably that the ceiling girder 22 becomes a thermal bridge, and the heat insulation of the building outer wall part 30 falls.

  The column outer wall unit 31 is attached to the column assembly 34 at a building construction site. This is because the column assembly 34 is formed for the first time at the building construction site by assembling a plurality of building units 20. For this reason, in the unit manufacturing factory, as shown in FIG. 7A, the column outer wall unit 31 is not attached to the building unit 20. In the state where the column outer wall unit 31 is attached to the building unit 20 at the building construction site, the portion including the ceiling beam 22 and the portion not including the ceiling beam 22 are continuously insulated by the column heat insulating portion 61. Note that the extended heat insulating material 67 of the column heat insulating portion 61 has a shape in which the upper portion is recessed toward the outdoor side in accordance with the ceiling beam 22.

  Here, a vibration control device 90 is provided in the building unit 20 in the building, and the configuration of the vibration control device 90 will be described with reference to FIGS. 8 and 9. FIG. 8 is a front view of a building unit around the vibration damping device 90, and FIG. 9 is an explanatory diagram for explaining the amplitude of the ceiling beam 22 when a vibration occurs.

  As shown in FIG. 8, the vibration damping device 90 is provided between the ceiling beam 22 and the floor beam 23 in the building unit 20. Further, it has a floor frame 92 fixed to the floor beam 23, a ceiling frame 93 fixed to the ceiling beam 22, and a damping damper 94 provided between the frames 92, 93. Yes.

  Damper receiving portions 95 and 96 are respectively provided at the upper end portion of the floor side frame 92 and the lower end portion of the ceiling side frame 93, and the damper receiving portions 95 and 96 allow the damping damper 94 to be rotated at both ends. It is attached. The damping damper 94 is a hydraulic damper that includes a cylinder 94a and a rod 94b that at least partially slides within the cylinder 94a and includes an oil chamber filled with hydraulic oil. The cylinder 94 a is connected to the damper receiving portion 95 of the floor side frame 92, and the rod 94 b is connected to the damper receiving portion 96 of the ceiling side frame 93. In this case, the damping damper 94 expands and contracts along the longitudinal direction of the ceiling beam 22.

  When shaking occurs due to an earthquake or the like, the rod 94b moves in and out of the cylinder 94a in the damping damper 94 of the vibration damping device 90, so that the rod length expands and contracts, thereby damping the vibration of the ceiling beam 22 with respect to the floor beam 23. Here, in the vibration damping device 90, the amplitude of the rod length, that is, the amplitude A of the shaking of the upper end of the column 21 (see FIG. 9), the width dimension W of the extended heat insulating material 67 of the column outer wall unit 31 in the building outer wall portion 30 ( The vibration of the ceiling beam 22 is attenuated so as to be smaller than that shown in FIG. In this case, since the separation distance between the column 21 and the extended plate member 69 of the column outer wall unit 31 is the same as the width dimension W, the column 21 swings in a range where it does not contact the extended plate member 69. Therefore, it can be avoided that the pillar 21 comes into contact with the extended plate member 69 and the pillar outer wall unit 31 is deformed or damaged.

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

  Since the main outer wall unit 33 and the beam outer wall unit 32 are attached to the building unit 20 in addition to the column outer wall unit 31, suitable heat insulation is possible for the column assembly portion 34 and other portions. In particular, in the column assembly portion 34, the outdoor side column heat insulating material 66 and the extension heat insulating material 67 of the column outer wall unit 31 are provided so as to surround each column 21 of the column assembly portion 34, and these outdoor side column heat insulating materials. The column heat insulating part 61 having 66 and the extended heat insulating material 67 is in a state of being continuous with the main heat insulating part 41 of the main outer wall unit 33. For this reason, the pillar 21 of the pillar assembly part 34 becomes a thermal bridge and heat transfer occurs indoors and outdoors, and a gap part that impairs heat insulation in the building outer wall part 30 is between the pillar heat insulating part 61 and the main heat insulating part 41. Can be suppressed.

  Moreover, since the column outer wall unit 31 is unitized, when the factory installation of the main outer wall unit 33 is performed and the column outer wall unit 31 is retrofitted on-site, it is easy to attach the column outer wall unit 31 at the construction site. Can be That is, the work of attaching the column outer wall unit 31 to the column assembly portion 34 must be performed at the building construction site, and the workability at the building construction site is improved by facilitating the work of attaching the column outer wall unit 31. Can do.

  As a result of the above, it is possible to improve the workability in constructing the building outer wall 30 while improving the heat insulation in the building outer wall 30.

  Since the column outer wall unit 31 is attached to the building unit 20 at the building construction site, the amount of overhang of the column outer wall unit 31 is not limited when the building unit 20 is transported. Therefore, the freedom degree regarding the assembly | attachment state to the building unit 20, such as a thickness dimension and a shape, about the pillar outer wall unit 31 can be raised.

  In the column outer wall unit 31, since the column trunk edge member 63 plays a role as a ventilation trunk edge, the column ventilation layer 65 is secured on the outdoor side of the column heat insulating portion 61. Furthermore, it can suppress that the building outer wall part 30 deteriorates with moisture by releasing moisture through the pillar ventilation layer 65 from between the pillar outer wall surface material 62 and the pillar heat insulation part 61. These effects can also be achieved for the main outer wall unit 33 and the beam outer wall unit 32. Moreover, since the main ventilation layer 52 of the main outer wall unit 33 and the beam ventilation layer 85 of the beam outer wall unit 32 communicate with each other in the vertical direction, it is possible to prevent moisture from being accumulated in the beam ventilation layer 85 or the main ventilation layer 52.

  Since the column gap heat insulating material 68 of the column outer wall unit 31 is inserted into the gap between the columns 21 of the column assembly portion 34, suitable heat insulation is possible for the gap portion. And since this heat insulation is implement | achieved with the attachment to the pillar assembly part 34 of the column outer wall unit 31, it can avoid that workability | operativity falls when heat-insulating the clearance gap between pillars 21 suitably.

  The column outer wall unit 31 has its mounting position set by the column trunk edge member 63 coming into contact with the column 21 of the column assembly portion 34. Moreover, the extension plate member 69 of the column outer wall unit 31 is inserted between the column 21 and the main outer wall unit 33, whereby the mounting position of the column outer wall unit 31 is determined in the direction in which the columns 21 of the column assembly 34 are arranged. be able to. Therefore, the positioning of the column outer wall unit 31 with respect to the column aggregate portion 34 can be suitably performed.

  Since the beam outer wall unit 32 is attached to the ceiling beam 22 and the floor beam 23 of the building unit 20, the ceiling beam 22 and the floor beam 23 are prevented from becoming a heat bridge and generating heat transfer indoors and outdoors. High thermal insulation performance can be given to building units including parts. And since the beam outer wall unit 32 is unitized, it can suppress that a workability falls at the time of the heat insulation about each part of the ceiling beam 22 and the floor beam 23.

  Since the main outer wall surface material 42 of the main outer wall unit 33 is retrofitted to the building unit 20 at the building construction site, it is possible to suppress a situation in which the outer size of the package is restricted to transport when the building unit 20 is transported. Furthermore, in this case, the amount of overhang of the main outer wall surface material 42 is not limited when the building unit 20 is transported. Can be increased.

  Of the beam heat insulating portions 75 of the beam outer wall unit 32, the front heat insulating portion 77 is factory-installed, and the post heat insulating portion 78 is retrofitted on-site. For this reason, in the configuration in which the heat insulation performance is ensured by increasing the thickness dimension of the beam heat insulating portion 75, the building unit 20 is transported in a state where the leading heat insulating portion 77 is attached within a range that does not exceed the transport limit, and post-heat insulation is performed after transport. The part 78 can be attached. Accordingly, it is possible to suppress a situation in which transportation restrictions are imposed on the transportation of the building unit 20 without degrading the heat insulation performance of the beam heat insulation portion 75. Further, since the beam outer wall surface material 76 is also retrofitted to the factory in the same manner as the retrofitted heat insulating portion 78, the degree of freedom regarding the assembled state of the beam outer wall surface material 76 to the building unit 20 such as the thickness dimension and shape is subject to transportation restrictions. Can be raised without any.

  Since the pillar assembly 34 is thermally insulated and reinforced from the indoor side by the indoor wall unit 71, the effect of suppressing heat transfer from occurring indoors and outdoors can be further enhanced by the pillar 21 of the pillar assembly 34 becoming a thermal bridge. And since the indoor wall unit 71 is unitized, it can avoid that workability | operativity falls at the time of construction of the building outer wall part 30. FIG.

  Even if a vibration occurs due to an earthquake or the like by the vibration damping device 90 provided in the building unit 20, the amplitude A of the upper end of the column 21 due to the vibration is based on the width dimension W of the extended heat insulating material 67 of the column outer wall unit 31. It is made smaller. In this case, the extension heat insulating material 67 only deforms with the shaking of the column 21, and the column 21 comes into contact with the extension plate material 69 and the main heat insulating portion 41, and the column outer wall unit 31 and the main outer wall unit 33 are deformed. Can be avoided. Even if the column outer wall unit 31 is replaced with a new one, the replacement work can be facilitated.

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

  (1) As shown in FIG. 10, the beam heat insulating portion 75 of the beam outer wall unit 32 is formed as a lower floor portion adjacent to the upper floor portion of the building unit 20 of the second floor portion as the upper floor portion in the building and the upper floor portion. It may be provided so as to straddle the ceiling beam 22 of the building unit 20 on the first floor. FIG. 10 is a longitudinal sectional view around the main outer wall unit 33 and the beam outer wall unit 32 in the building unit 20. The building unit on the second floor corresponds to the upper floor building unit, and the building unit on the first floor corresponds to the lower floor building unit.

  In this configuration, a portion where the floor girder 23 and the ceiling girder 22 are adjacent to each other is a beam assembly portion 98, and the beam heat insulating portion 75 covers the outdoor side of the entire beam assembly portion 98. In this case, the main outer wall unit 33 and the beam outer wall unit 32 enable suitable heat insulation for the beam assembly portion 98 and other portions. Moreover, since the beam assembly portion 98 is formed for the first time at the building construction site in the same manner as the column assembly portion 34, the mounting operation of the beam outer wall unit 32 to the beam assembly portion 98 must be performed at the building construction site, By facilitating the attachment work of the beam outer wall unit 32, the workability at the building construction site can be improved.

  Further, the beam outer wall unit 32 has a beam gap heat insulating portion 99 extending from the beam heat insulating portion 75 to the indoor side at a gap portion between the floor large beam 23 and the ceiling large beam 22 in the beam assembly portion 98. In this case, the beam gap heat insulating portion 99 enables suitable heat insulation for the gap portion between the large beams 22 and 23 of the beam assembly portion 98. And since this heat insulation is implement | achieved with the attachment of the beam outer wall unit 32, it can avoid that workability | operativity falls, when insulating the clearance gap between the large beams 22 and 23 suitably.

  (2) The column outer wall surface material 62 of the column outer wall unit 31 may be provided so as to protrude from the main outer wall surface material 42 of the main outer wall unit 33 to the outdoor side, as shown in FIG. FIG. 11 is a cross-sectional view around the column outer wall unit 31 and the main outer wall unit 33 in the building unit 20. In this configuration, the outdoor side column heat insulating material 66 of the column outer wall unit 31 is formed of the same material (the heat insulating material having the same thermal conductivity λ) as the filling heat insulating material 47 of the main outer wall unit 33, and is the same as the filled heat insulating material 47. It has a thickness dimension. According to this configuration, the degree of freedom in a state where the column outer wall unit 31 is attached to the building unit 20 such as the protruding size, thickness size, and shape of the column outer wall surface material 62 can be further increased. In this configuration, the column outer wall unit 31 does not have the column gap heat insulating material 68.

  (3) The main outer wall unit 33 including the main outer wall surface material 42 and the main trunk edge member 43 may be factory-attached to the building unit 20 or may be retrofitted on-site. Similarly, the beam outer wall unit 32 may include a beam heat insulating portion 75, a beam outer wall surface material 76, and a beam trunk edge member 84, and may be factory-attached to the building unit 20 or retrofitted on-site.

  (4) The column outer wall unit 31 may be divided into a portion that is arranged side by side with respect to the main outer wall unit 33 and a portion that is arranged side by side with respect to the beam outer wall unit 32. That is, you may divide | segment into the part arrange | positioned between the ceiling beam 22 and the floor beam 23, and the part attached with respect to the ceiling beam 22 or the floor beam 23.

  (5) The main outer wall unit 33 and the beam outer wall unit 32 may be integrally formed. For example, the main outer wall surface material 42 and the beam outer wall surface material 76 are continuously formed, and the main trunk edge member 43 and the beam trunk edge member 84 are continuously formed.

  (6) The main outer wall unit 33 may not be unitized. For example, in the unit manufacturing factory, the vertical frame material 44, the main inner wall surface material 45, the wall base surface material 46, and the filling heat insulating material 47 are individually attached to the building unit 20. Similarly, the beam outer wall unit 32 may not be unitized.

  (7) In the main outer wall unit 33, a heat insulating material may be provided between the main outer wall surface material 42 and the main heat insulating portion 41. For example, the heat insulating material is arranged on the main heat insulating portion 41 side, and the main ventilation layer 52 is formed on the outdoor side of the heat insulating material.

  (8) The column heat insulating portion 61 of the column outer wall unit 31 is replaced with the extended plate material 69 and has a U-shape that supports the outdoor side heat insulating material 66, the extended heat insulating material 67, and the column gap heat insulating material 68. You may have a member. In this case, it is set as the structure by which each heat insulating material 66-68 is attached and fixed to the open inside of a U-shaped member. In this case, the opposing portions facing each other in the U-shaped member correspond to the extending plate material, and the opposing portions together with the extending heat insulating material 67 and the column 21 of the column assembly portion 34 and the main heat insulating portion 41 of the main outer wall unit 33. It is inserted in between.

  (9) The column aggregate portion may be configured by a configuration in which three or more columns 21 are aggregated, and the column outer wall unit 31 may be attached to the column aggregate portion 34. For example, a structure in which a corner portion is formed by a column aggregate portion in which three columns 21 aggregate in the building outer wall portion 30, and a column outer wall unit 31 is attached to the column aggregate portion 34 from the corner portion. To do. Also in this configuration, the column heat insulating portion 61 of the column outer wall unit 31 covers the outdoor side surface of each column 21 of the column assembly portion 34, and the building outer wall surface at the corner portion can be formed by the column outer wall surface material 62.

  (10) The column outer wall unit 31 only needs to have at least one column trunk edge member 63 that comes into contact with the column 21 of the column assembly portion 34. Even in this case, the column outer wall unit 31 can be positioned, and the column vent layer 65 can be secured to the column outer wall unit 31 by the column body edge member 63.

  (11) In the column outer wall unit 31, the column trunk edge member 63 may be a cross member extending in the horizontal direction. The same applies to the beam trunk edge member 84 of the beam outer wall unit 32 and the main trunk edge member 43 of the main outer wall unit 33.

  DESCRIPTION OF SYMBOLS 20 ... Building unit, 21 ... Column, 22 ... Ceiling girder as large beam and upper girder, 23 ... Floor girder as large beam and lower girder, 30 ... Building outer wall part, 31 ... First outer wall part and heat insulating wall unit Column outer wall unit, 32 ... Beam outer wall unit as third outer wall portion, 33 ... Beam outer wall unit as second outer wall portion, 41 ... Main heat insulating portion as second heat insulating portion, 42 ... Main as second outer wall surface material Outer wall surface material, 44 ... vertical frame material constituting the second heat insulating part, 45 ... main inner wall surface material constituting the second heat insulating part, 46 ... wall base material constituting the second heat insulating part, 47 ... second heat insulating material Filling heat insulating material constituting the part, 61... Column heat insulating part as the first heat insulating part, 62... Column external wall surface material as the first outer wall surface material, 63. Column ventilation layer, 66 ... outdoor side column heat insulating material constituting the first heat insulating portion, 67 An extending heat insulating material constituting the first heat insulating part, 68... A pillar gap heat insulating material constituting the first heat insulating part, 69... An extending plate material constituting the first heat insulating part, 71. 72 ... Indoor side column heat insulating material as an indoor heat insulating portion, 73 ... Column inner wall surface material as an inner wall surface material, 75 ... Beam heat insulating portion as a third heat insulating portion, 76 ... Beam outer wall surface material as a third outer wall surface material , 77 ... Pre-attached heat insulating part, 78 ... Post-attached heat insulating part, 81 ... Vertical frame material constituting the pre-formed heat insulating part, 82 ... Wall base material constituting the pre-formed heat insulating part, 83 ... Pre-attached heat insulating material constituting the pre-insulating heat part, 90: Vibration control device.

Claims (9)

It is a heat insulation structure for the outer wall of a unit type building constructed by arranging multiple building units consisting of pillars and beams.
The building outer wall part attached to the unit type building includes a first outer wall part provided in a pillar assembly part where the pillars of the plurality of building units gather, and a second outer wall part provided side by side on the first outer wall part. Have
The first outer wall part is a heat insulating wall unit having a first heat insulating part provided around the pillars of the pillar assembly part and a first outer wall surface material provided on the outdoor side thereof,
The second outer wall portion includes a second heat insulating portion provided between the pillars of the unit side surface portion on the outer wall mounting side in the building unit, and a second outer wall surface material provided on the outdoor side thereof,
The first heat insulating portion is an outdoor side column heat insulating material provided across the columns on the outdoor side of the columns adjacent to each other in the column assembly portion, and a side opposite to the mutually facing surface side of the adjacent columns. An extending heat insulating material extending from the outdoor side column heat insulating material to the indoor side,
In the building unit, the column and the side end portion of the second heat insulating portion are provided apart from each other, and the first outer wall portion is a separation portion between the column and the side end portion of the second heat insulating portion. The outer wall of the unit type building is assembled to the building unit in a state where the first heat insulating portion and the second heat insulating portion are continuous by inserting the extended heat insulating material into the building wall. Thermal insulation structure.   In the first outer wall portion, an elongated trunk edge member is attached to the inside of the first outer wall surface material, and the outdoor side column heat insulating material is fixed to the trunk edge member, and the outdoor side The outer wall heat insulating structure of the unit type building according to claim 1, wherein a ventilation layer is formed between the column heat insulating material and the first outer wall surface material.   3. The unit-type building according to claim 1, wherein the first outer wall portion includes a column gap heat insulating material extending from the outdoor side column heat insulating material to an indoor side at a gap portion between the adjacent columns. Outer wall insulation structure. In the second outer wall portion, the second heat insulating portion is preceded with respect to the building unit before the plurality of building units are assembled, and the second outer wall surface material is formed between the plurality of building units. Is attached to the second heat insulating part after assembly of
In the first outer wall portion, the first outer wall surface material is provided so as to be flush with the second outer wall surface material of the second outer wall portion or outwardly from the second outer wall surface material. The outer wall heat insulation structure of the unit type building of any one of Claim 1 thru | or 3. The building outer wall has a third outer wall provided on the outdoor side of the girder of the building unit,
The third outer wall portion includes a third heat insulating portion provided on the outdoor side of the girder and a third outer wall surface material provided on the outdoor side,
The said building unit WHEREIN: The said 2nd outer wall part and the said 3rd outer wall part are the outer wall heat insulation structures of the unit type building of any one of Claims 1 thru | or 4 attached up and down. The unit building is a multi-story building,
The third heat insulating portion of the third outer wall section straddles the lower large beam of the upper floor building unit and the upper large beam of the lower floor building unit with respect to the upper floor building unit and the lower floor building unit that are vertically adjacent to each other. The outer wall heat insulation structure of the unit type building of Claim 5 provided as follows. The third heat insulating part is
A pre-insulated heat insulating part that is pre-attached to the outdoor side of the girder of the building unit before assembling a plurality of the building units;
A retrofitted heat insulating part retrofitted to the outdoor side of the front heat insulating part together with the third outer wall surface material after assembling a plurality of the building units;
The outer wall heat insulating structure of the unit type building according to claim 5 or 6. An indoor wall provided on the indoor side of the pillar assembly,
The indoor wall portion includes an indoor heat insulating portion provided on the indoor side of each pillar of the pillar assembly portion, and an inner wall surface material provided on the indoor side,
The said indoor heat insulation part is an outer wall heat insulation structure of the unit type building of any one of the Claims 1 thru | or 7 provided ranging over those pillars in the indoor side of each pillar adjacent in the said pillar assembly part. The unit type building is provided with a vibration damping device that reduces shaking generated in the upper beam of the building unit.
The said damping device reduces the amplitude of the said upper large beam when the said upper large beam shakes so that it may become smaller than the separation distance of the said pillar and the side edge part of a said 2nd heat insulation part in the said building unit. The outer wall heat insulation structure of the unit type building of any one of 1 thru | or 8.

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