JP4941375B2 - Insulated wall structure - Google Patents

Description

  The present invention relates to a heat insulating structure of a building, and more particularly to a heat insulating wall structure that is used as an outer wall of a building and keeps an indoor living environment favorable.

  In recent years, due to the revision of the Building Standards Act, ordinary houses are also required to have earthquake resistance, and houses in which the drive parts of conventional wooden houses are replaced with steel frames are becoming widespread. At this time, as a steel frame material, an H-shaped steel material having an H-shaped cross section is often used because it is inexpensive and excellent in strength. Building a general house is used for the body part.

  In addition, heat insulation panels are installed in the space formed by the upper beams, lower beams, and support columns. The heat insulation panels block high outdoor temperatures in the summer and prevent cold air in the winter, causing problems such as condensation in the room. In addition, a heat insulation function is required so that the indoor living environment can be satisfactorily maintained throughout the seasons, and airtightness is also required so that cooled air and warm air do not escape.

For example, in Japanese Patent Application Laid-Open No. 2003-64808, it is composed of a lower beam, an upper beam, and a column, and the outdoor side surface of the column is disposed on the outdoor side of the frontage that is disposed on the indoor side with respect to the outdoor surface of the beam. An outer wall base panel is disclosed. As shown in FIGS. 1, 5 (a), 5 (b), and (c) of the above-mentioned patent document, this outer wall base panel is disposed on the outdoor side of the frontage and is in contact with the pillars. And a plurality of horizontal trunk edges constructed between the pair of vertical trunk edges, and a heat insulating material provided in a region surrounded by the vertical trunk edges and the horizontal trunk edges. It is described.
JP 2003-64808 A

  In the technique described in the above-mentioned document 1, in particular, as shown in FIGS. 5 (a), (b), and (c), H-shaped steel materials are used for the base, the second-floor beam, and the ceiling beam. Although it is structurally solid, since the H-shaped steel material itself is used, there is a problem that it is difficult to make a work such as attaching a heat insulating base panel, and workability is poor. The present invention has been made in view of the above-described background art, and its purpose is to construct an outer wall of a general house using an H-shaped steel material, which blocks high outdoor temperature in summer and prevents cold air in winter. An object of the present invention is to provide a heat insulating wall structure capable of maintaining a favorable indoor living environment without causing problems such as condensation.

In order to solve the above-mentioned problem, in the heat insulating wall structure according to the first aspect of the present invention, a composite beam is obtained by fixing and integrating a wooden member on the outer surface of the lower flange portion on the H-shaped steel material having an H-shaped cross section. The upper and lower composite beams are arranged above and below the base so as to be opposed to each other to form an upper composite beam and a lower composite beam, and a column is provided between the upper composite beam and the lower composite beam. A heat insulating space is formed by the composite beam, the lower composite beam, and the support, and the heat insulating space is fixed to the wooden member on the indoor side of the heat insulating space to provide a filling heat insulating material layer, and the wooden board and the heat insulating material are provided on the outdoor side of the heat insulating space. There Ri Na the insulating panels on which are adhered integrally secured to the wooden member, the strut is provided between the lower composite beams and the base, the heat insulation space is formed under composite beams, by the base and the support, A heat insulating material layer is provided on the indoor side of the heat insulating space by being fixed to the wood member, and the heat insulating space is provided. The lower heat insulation panel, in which the wooden board and heat insulating material are attached and integrated on the outdoor side of the door, is fixed to the wooden member, and the lower heat insulating panel is connected and fixed to the upper heat insulating panel via a connecting material. upper and lower insulating panel is characterized Rukoto such are integrated Te.

  In the heat insulating wall structure according to the first aspect of the present invention, in particular, the composite beam formed by fixing and integrating the H-shaped steel material and the wooden member is disposed above and below the base, and the upper composite beam and the lower composite beam. Since a heat insulating space is formed by providing a support between the upper composite beam and the lower composite beam, a filler heat insulating material is provided on the wooden side of the upper composite beam and the lower composite beam on the indoor side of the heat insulating space. It can be easily fixed with a nail, a screw or the like with good workability.

  It is also possible to change the thickness of the filled heat insulating material depending on the region such as a cold region and various standards, so that the filled heat insulating material set to a desired thickness is fitted on the indoor side of the heat insulating space. It can also be fixed to. Furthermore, since the upper heat insulation panel in which the wooden board and the heat insulating material are bonded and integrated is also provided on the outdoor side of the heat insulation space, a heat insulation wall structure having good heat insulation and excellent airtightness is provided. can do.

  In addition, since a support column is provided between the lower composite beam and the base to form a heat insulating space, a filler heat insulating material is placed on the indoor side of the heat insulating space disposed below the wooden member of the lower composite beam. It can be easily fixed to the base with nails, screws, etc. with good workability.

In addition, a support is provided between the lower composite beam and the base, and a heat insulating space is formed by the lower composite beam, the base and the support, and the filler heat insulating material layer is fixed to the wooden member on the indoor side of the heat insulating space. A lower heat insulation panel in which a wooden board and heat insulation material are bonded and integrated is provided on the outdoor side of the heat insulation space, and this lower heat insulation panel is connected and fixed to the upper heat insulation panel via a connecting material. By integrating the upper and lower heat insulation panels, it can be easily applied to through walls extending over the first and second floors, such as stairs and atrium. And in the summer, the heat insulation panel provided on the outdoor side blocks high temperature outside air, in the winter, insulates the cold air, and the filled insulation layer prevents indoor condensation and other problems. Can keep good. Further, by integrating the upper and lower sides, the airtightness is improved, the heat insulating effect is improved, the escape of cold air and warm air can be prevented, and the energy loss can be reduced.

  Hereinafter, an embodiment of a heat insulating wall structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded explanatory view showing the heat insulating wall structure according to the first embodiment of the present invention applied to a two-story house and disassembled. As shown in FIG. 1, the body portion of the heat insulating wall structure includes an upper composite beam A and a lower composite beam B, and an upper composite beam A and a lower composite, which are disposed above and below the base C so as to face each other. It is composed of a column 31 provided between the beam B and a column 32 provided between the lower composite beam B and the base C.

  The upper composite beam A is formed by integrally bonding an upper wooden member 111 and a lower wooden member 121 to the outer surfaces of the upper flange portion 11 and the lower flange portion 12 of the H-shaped steel member 1 by fixing means such as screws. Similarly, in the lower composite beam B, the upper wooden member 211 and the lower wooden member 221 are fixed to the outer surfaces of the upper flange portion 21 and the lower flange portion 22 of the H-shaped steel member 2 by fixing means such as screws. Formed. Further, as the support columns 31 and 32, C-shaped steel, L-shaped steel, steel hollow prisms, solid prisms, etc. are appropriately used.

  The space formed by the upper composite beam A, the lower composite beam B, and the support column 31 is an upper heat insulating space, and the filled heat insulating material layer 4 is fixed to the wood members 121 and 211 on the indoor side of the heat insulating space. By doing so, the indoor side is insulated, and the upper heat insulating panel P1 formed by sticking and integrating the wooden board 5 and the heat insulating material 6 to the outdoor side of the heat insulating space is fixed to the wooden members 121 and 211, and the outdoor side is insulated. Is done.

  The space formed by the lower composite beam B, the base C, and the support column 32 is a lower heat insulating space, and the filling heat insulating material layer 4 is fixed to the wood member 221 and the base C on the indoor side of the heat insulating space. Is insulated from the indoor side, and the lower heat insulating panel P2 formed by sticking and integrating the wooden board 5 and the heat insulating material 6 to the outdoor side of the heat insulating space is fixed to the wooden member 221 and the base C to insulate the outdoor side. The

  As the above-mentioned filled heat insulating material layer 4, compression molded products of hard synthetic resin foams such as expanded polystyrene, expanded polyurethane, beaded polystyrene, epoxy foam, phenol foam, polyethylene foam, etc. are used, and these are molded into a plate shape. Alternatively, it is also possible to use a high-density glass wool mat, rock wool mat or the like molded to a hardness sufficient to maintain a plate-like form.

  In the first embodiment shown in FIG. 1, the upper and lower heat insulating panels P1 and P2 are provided with a heat insulating material 6 provided on the indoor side of the wooden board 5, and the wooden board 5 includes a structural plywood and a cross plywood. And particle boards, MDF (medium density fiberboard), WBP (wood plastic board), and integrated materials. Moreover, as the said heat insulating material 6, what was mention | raise | lifted as the said filling heat insulating material layer 4 can be used, However, Hard synthetic | combination, such as expanded polystyrene, expanded polyurethane, bead method polystyrene, an epoxy foam, a phenol foam, a polyethylene foam, is mentioned above. A resin foam compression-molded product formed into a plate shape is preferably used from the viewpoint of adhesion to the wood board 5 and the like.

  FIG. 2 is an explanatory view showing a heat insulating wall structure according to the first embodiment in which the filled heat insulating material layer 4 is attached to the indoor side of the heat insulating space and the upper and lower heat insulating panels P1 and P2 are attached to the outdoor side. In the first embodiment, on the indoor side of the upper heat insulating space formed by the upper composite beam A, the lower composite beam B, and the support column 31, the filling heat insulating material layer 4 is not shown in the drawings on the wooden members 121 and 211. It is fitted with fixing means such as screws to insulate the indoor side of the second floor. Further, the upper heat insulating panel P1 is fixed to the wooden members 121 and 211 by fixing means so that the wooden board 5 is on the outdoor side and the heat insulating material 6 is on the indoor side on the outdoor side of the heat insulating space. The outdoor side is insulated.

  Although the above has described the heat insulating wall structure of the second floor portion, the same applies to the first floor, and the filled heat insulating material layer 4 is provided on the indoor side of the lower heat insulating space formed by the lower composite beam B, the base C and the support column 32. The wooden member 221 and the base C are fitted with fixing means such as a non-illustrated screw to insulate the indoor side of the first floor. The lower heat insulation panel P2 is fixed to the wood member 221 and the base C by fixing means so that the wood board 5 is on the outdoor side and the heat insulating material 6 is on the indoor side on the outdoor side of the heat insulation space. The outdoor side of the floor is insulated. Here, as the fixing means, known means such as a method of fixing using a known fixing tool such as the above-mentioned nail or screw, or a method of fixing with an adhesive is used.

  As shown in FIG. 2, in this embodiment, a connecting material 7 is provided, and the lower heat insulating panel P <b> 2 on the first floor and the upper heat insulating panel P <b> 1 on the second floor are connected and fixed to the connecting material 7. By doing so, the upper and lower heat insulating panels P1, P2 are integrated, and the airtightness can be improved.

  FIG. 3 is an explanatory view showing a modified example of the heat insulating wall structure according to the first embodiment. In FIG. 3, the thickness of the heat insulating material 6 disposed on the indoor side of the upper and lower heat insulating panels P1 and P2 is increased to improve the heat insulating property and the air tightness. By doing in this way, the high-performance living environment where heat insulation and airtightness improved can be provided.

  FIG. 4 is an explanatory view showing a heat insulating wall structure according to the second embodiment of the present invention. Also in the second embodiment, the filling heat insulating material layer 4 is provided on the indoor side of the upper heat insulating space formed by the upper composite beam A, the lower composite beam B and the support column 31, and the wooden members 121 and 211 are not shown in the figure. It is fixed by a fixing means such as the like, and the indoor side of the second floor is insulated. On the other hand, the upper heat insulating panel P1 provided on the outdoor side of the heat insulating space is fixed to the wooden members 121 and 211 by fixing means so that the heat insulating material 6 is on the outdoor side and the wooden board 5 is on the indoor side. The outdoor side of the floor is insulated.

  Similarly, on the first floor, the filling heat insulating material layer 4 is fixed to the wooden member 221 and the base C on the indoor side of the lower heat insulating space formed by the lower composite beam B, the base C, and the support column 32, such as screws outside the figure. It is fitted by means, and the indoor side of the first floor is insulated. On the other hand, the lower heat insulation panel P2 provided on the outdoor side of the heat insulation space is fixed to the wood member 221 and the base C by a fixing means such that the heat insulating material 6 is on the outdoor side and the wood board 5 is on the indoor side, The outdoor side of the first floor is insulated. In addition, as shown in FIG. 4, also in the present embodiment, the connecting material 7 is provided, and the lower heat insulating panel P <b> 2 on the first floor and the upper heat insulating panel P <b> 1 on the second floor are connected and fixed to the connecting material 7. Thus, the upper and lower heat insulating panels P1 and P2 are integrated, and the airtightness can be improved.

  Next, in the second embodiment, a mode in which the vertical seams of the upper and lower heat insulating panels P1 and P2 are blinded by using the ventilation trunk edge 8 will be described. FIG. 5 is an explanatory diagram illustrating a state in which the joints in the vertical direction of the upper heat insulating panel P1 and the lower heat insulating panel P2 are closed by the ventilation trunk edge 8 in the heat insulating wall structure according to the second embodiment shown in FIG. In the above embodiment, the ventilator edge 8 is fixed to the outdoor side of the upper and lower heat insulating panels P1 and P2 fixed to the outdoor side of the heat insulating space by a method such as nail fixing or screw fixing.

  FIG. 6 is a front view showing a schematic configuration of the heat insulating wall structure of the present invention in which the vertical joints of the upper and lower heat insulating panels P1 and P2 are blinded by the ventilation trunk edge 8 in the second embodiment. In FIG. 6, reference numerals 81 and 82 denote ventilating trunk edges that conceal joints between the upper and lower heat insulating panels P <b> 1 and P <b> 2 and the columns 31 and 32.

  As described above, according to the present invention, it is possible to configure the conventional wooden house body part with an H-shaped steel material combined with a wooden member, and the above-described heat-insulating material installation and the like. It can be easily performed with good workability. In addition, the heat insulation panel can block high temperature outside air, and in winter, cool air can be insulated to keep the indoor living environment favorable throughout the seasons. Further, since the airtightness is improved, it is possible to prevent the cool air and warm air from escaping and to reduce energy loss. In addition, in the said embodiment, although the two-story house was demonstrated, you may apply to a one-story house. Alternatively, the present invention may be applied to a three-storied house. Thus, the present invention can be modified in design, and belongs to the technical scope of the present invention unless departing from the scope of the claims.

The exploded explanatory view which decomposes and shows the heat insulation wall structure concerning a 1st embodiment. Explanatory drawing which shows the heat insulation wall structure which attached the filling heat insulating material layer to the indoor side of the heat insulation space which concerns on 1st Embodiment, and the up-and-down heat insulation panel to the outdoor side. Explanatory drawing which shows the modification of the heat insulation wall structure which concerns on 1st Embodiment. Explanatory drawing which shows the heat insulation wall structure which concerns on 2nd Embodiment. Explanatory drawing which shows the state which covered the vertical seam of the upper and lower heat insulation panels in the heat insulation wall structure which concerns on 2nd Embodiment with the ventilator trunk edge, and was blinded. The front view which shows schematic structure of the heat insulation wall structure which concerns on this invention which blinded the vertical joint of the upper and lower heat insulation panel with the ventilation trunk | drum in 2nd Embodiment.

Explanation of symbols

A Upper composite beam B Lower composite beam C Base P1 Upper heat insulation panel P2 Lower heat insulation panel 1 H-shaped steel material 11 Upper flange portion 111 Wood member 12 Lower flange portion 121 Wood member 2 H-shape steel material 21 Upper flange portion 211 Wood member 22 Lower flange Section 221 Wood member 31 Strut 32 Strut 4 Filling heat insulating material layer 5 Wood board 6 Heat insulating material 7 Connecting material 8 Venting trunk edge 81 Venting trunk edge 82 Venting trunk edge

Claims (1)

A composite beam is formed by fixing and integrating a wooden member on the outer surface of the lower flange portion on an H-shaped steel material having an H-shaped cross section, and the upper composite beam is disposed above and below the composite beam. And a lower composite beam, and a support is provided between the upper composite beam and the lower composite beam, and an insulating space is formed by the upper composite beam and the lower composite beam and the support, the filler insulation material layer formed by fixing a wooden member, Ri Na and the insulating panel on the outdoor side of the heat insulation space and wooden board and the heat insulating material is adhered and integrated secured to the wooden member, the lower composite A support is provided between the beam and the base, and a heat insulating space is formed by the lower composite beam, the base and the support, and the heat insulating space is provided on the indoor side of the heat insulating space by being fixed to the wooden member, and the heat insulating space is provided. The lower thermal insulation panel, in which the wooden board and heat insulating material are bonded and integrated on the outdoor side of the Wear together and comprising, connected to the lower insulating panel via a tether to the upper insulating panel, fixed heat insulating wall structure ing are integrated upper and lower heat insulating panels.

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