JP3196751U - Wooden building and outer wall structure - Google Patents

Abstract

An outer peripheral wall structure that includes an outer heat insulating structure and a load-bearing wall and does not require an interior finishing material, and has high fire resistance against an indoor fire without increasing construction costs. In an outer peripheral wall structure provided with a heat insulating panel 15 on the outdoor side of a shaft assembly, a fireproof board 51 is attached to the indoor side of a pillar 11 as a load-bearing wall, and an interior surface material 15b having fire resistance is provided on the indoor side. Using the heat insulating panel 15, the studs 16 are arranged on the outdoor side of the heat insulating panel 15 without arranging the studs on the indoor side of the heat insulating panel 15, and the exterior material 17 is attached to the studs 16. [Selection] Figure 1

Description

  The present invention relates to an outer peripheral wall structure in an externally insulated wooden building by a wooden frame construction method, and a wooden building having the outer peripheral wall structure.

  In recent wooden houses, heat insulation is generally applied to the outer peripheral wall and roof, even in cold areas.

  For heat insulation construction of wooden houses, filling insulation that fills the space between vertical members such as pillars and studs and horizontal members such as beams, girders, and waist gaps with glass wool and the like, and the above vertical and horizontal members There is an external insulation that attaches a plate-like heat insulating material to the outside of the. Filling heat insulation is widely used because the space in the existing outer peripheral wall is used, so that the outer peripheral wall does not become thick, and the heat insulating material is inexpensive and the construction cost is low. On the other hand, outer insulation is more expensive than filling insulation, and the outer wall becomes thicker by the thickness of the insulation, so there is a problem that the substantial floor area is reduced, but there is a gap between the outer periphery of the building. There is an advantage that it can be covered with a heat insulating material, and a uniform and high heat insulating property can be obtained, and condensation in the wall does not occur. For this reason, an increasing number of wooden buildings have adopted external insulation.

  On the other hand, in a wooden building, in order to have earthquake resistance and wind resistance, it is obliged to provide a predetermined amount of bearing walls. The bearing wall is generally configured by attaching braces with hardware or attaching structural plywood.

  In Patent Document 1, a load-bearing wall material having a humidity control function is attached to the outdoor side of a pillar and a stud, and a heat-insulating material is further attached to the outdoor side of the load-bearing wall material, so that the humidity control function of the load-bearing wall material is installed. There is disclosed a wall structure that reduces the construction cost by making the interior finishing material covering the heat insulating material unnecessary while making it fully exerted on the inside. Patent Document 1 further includes a fire prevention function as a function of the load-bearing wall material.

Utility Model Registration No. 3160261

  As described above, in the wall structure disclosed in Patent Document 1, by using a load-bearing wall material having a fire-proof function, a load-bearing wall having fire-proof properties can be obtained. Since the studs are exposed, when the fire breaks out from the indoors, these pillars and the studs spread easily. In particular, since the studs are smaller in width and depth than the pillars and burn out easily, the load-bearing wall material attached to the studs, and the exterior material attached to the studs via the trunk edge, can be used for a short time from the fire. There is a risk of peeling off. Even if the load-bearing wall and exterior materials themselves are fireproof, once they are peeled off, the fireproof wall disappears and at the same time an air passage is created, so that the fire spreads widely both indoors and outdoors in a short time. There is a risk that.

  An object of the present invention is to provide a high heat resistance against an indoor fire without increasing the construction cost in an outer peripheral wall structure that has an outer heat insulating structure and a load-bearing wall and does not require any interior finishing work. There is.

A first aspect of the present invention is a heat insulating panel having a plate-like heat insulating material and a face material on the outdoor side of a frame of a wooden building having columns and cross members, and an exterior material arranged outside the heat insulating panel. In the outer peripheral wall structure of a wooden building having a load-bearing wall in at least one corner,
At least a part of the load-bearing wall is formed by attaching a fireproof board to the indoor side of the pillar,
At least a part of the area excluding the load-bearing wall, there is no inter-column between the pillars on the indoor side of the heat insulation panel, and the cross pillar attached to the cross member or the pillar is arranged on the outdoor side of the heat insulation panel. , The heat insulation panel has a region with an interior surface material having fire resistance on the indoor side,
The exterior material is attached to the studs.

  The second of the present invention is a wooden building having the outer peripheral wall structure of the present invention.

  The outer peripheral wall structure of the present invention has a load-bearing wall to which a fire-resistant board is attached, and has a region where the burnt-out pillars are arranged on the outdoor side of the heat-insulating panel with fire resistance in a region other than the load-bearing wall. Therefore, the indoor side of the outer peripheral wall has a high fire resistance configuration. Therefore, even when a fire breaks out indoors, it is possible to suppress the spread of fire to the inside and outside, and to provide a wooden building that meets strict fire resistance standards such as a densely populated area at low cost. Further, according to the present invention, a space between the pillars can be obtained as an indoor space in an area where the above-described pillars are arranged on the outdoor side of the heat insulating panel, and the degree of design freedom is widened.

It is sectional drawing which shows typically the structure of the load-bearing wall of preferable embodiment of the outer peripheral wall structure of this invention, Comprising: It is a cross-sectional schematic diagram parallel to a perpendicular direction and thickness direction. It is a cross-sectional schematic diagram of the horizontal direction of the load-bearing wall of the outer peripheral wall structure of FIG. 1, and is A-A 'cross-sectional view in FIG. It is a fragmentary perspective view of the load-bearing wall of the outer peripheral wall structure of FIG. It is a cross-sectional schematic diagram of the horizontal direction which shows typically the structure of the load bearing wall which protrudes from the outer peripheral wall structure of this invention. It is sectional drawing which shows typically the structure of the bearing wall of other embodiment of the outer peripheral wall structure of this invention, Comprising: It is a cross-sectional schematic diagram parallel to a perpendicular direction and thickness direction. It is a cross-sectional schematic diagram of the horizontal direction of the load-bearing wall of the outer peripheral wall structure of FIG. 5, and is A-A 'cross-sectional view in FIG. It is sectional drawing which shows typically the structure of the bearing wall of other embodiment of the outer peripheral wall structure of this invention, Comprising: It is a cross-sectional schematic diagram parallel to a perpendicular direction and thickness direction. It is a cross-sectional schematic diagram of the horizontal direction of the load-bearing wall of the outer peripheral wall structure of FIG. 7, and is A-A 'cross-sectional view in FIG. It is a cross-sectional schematic diagram of the horizontal direction of the load-bearing wall of other embodiment of the outer peripheral wall structure of this invention. It is a cross-sectional schematic diagram of the horizontal direction of the load-bearing wall of other embodiment of the outer peripheral wall structure of this invention. It is sectional drawing which shows typically the structure of areas other than the load-bearing wall of preferable embodiment of the outer peripheral wall structure of this invention, Comprising: It is a cross-sectional schematic diagram parallel to a perpendicular direction and thickness direction. It is a cross-sectional schematic diagram of the horizontal direction of areas other than the load-bearing wall of the outer peripheral wall structure of FIG. 11, and is a cross-sectional view along A-A ′ in FIG. 11. It is a fragmentary perspective view of area | regions other than the load-bearing wall of the outer peripheral wall structure of FIG. FIG. 12 is an enlarged view of the vicinity of the trunk difference in the embodiment of FIG. 11, and is a schematic cross-sectional view parallel to the vertical direction and the thickness direction. It is sectional drawing which shows typically the structure of area | regions other than the load-bearing wall of other embodiment of the outer peripheral wall structure of this invention, Comprising: It is a cross-sectional schematic diagram parallel to a perpendicular direction and thickness direction. FIG. 16 is an enlarged view of the vicinity of the trunk difference in the embodiment of FIG. 15, and is a schematic cross-sectional view parallel to the vertical direction and the thickness direction.

  The present invention relates to an outer peripheral wall structure of an externally insulated wooden building provided with a heat insulating panel on the outdoor side of a frame of a wooden building provided with columns and cross members, and a wooden building provided with the outer peripheral wall structure. The outer peripheral wall structure of the present invention has a load-bearing wall at least at one corner, and uses a fire-proof board for the structure of the load-bearing wall. It has been arranged outside and has an area with a fireproof interior panel on the indoor side of the heat insulation panel to improve fire resistance against indoor fire (hereinafter referred to as “indoor fire resistance”). Has characteristics. In the present invention, “wooden building” means all buildings constructed by the wooden frame construction method, and includes both “buildings” and “workpieces” classified by the Building Standards Act. In addition to the traditional method of constructing a framework using only traditional timber, the wooden framing method is not limited to the conventional method of building a frame, but using dedicated hardware such as the SE (Engineering For Safety) construction method or the KES (Kimura Excellent Structure) construction method. In the present invention, the joint metal construction method for joining the members is also preferably applied.

  Hereinafter, a two-story wooden house will be described in detail as a preferred embodiment with reference to the drawings. In the figure, the same reference numerals are assigned to the same members. 2 is a schematic cross-sectional view taken along the line A-A ′ in FIG. 1, and FIG. 1 corresponds to a schematic cross-sectional view taken along the line A-A ′ in FIG. 2. Similarly, FIG. 6 is a schematic cross-sectional view taken along line AA ′ in FIG. 5, FIG. 5 is a schematic cross-sectional view taken along line AA ′ in FIG. 6, and FIG. 8 is a schematic cross-sectional view taken along line AA ′ in FIG. 7 is a schematic cross-sectional view taken along the line AA ′ in FIG. 8, FIG. 12 is a schematic cross-sectional view taken along the line AA ′ in FIG. 11, and FIG. 11 is a cross-sectional view taken along the line AA ′ in FIG. It is a schematic diagram.

  As shown in FIGS. 1 to 13, the outer peripheral wall structure of the present invention basically includes a column 11, a cross member such as a base 13 and a trunk difference 14, a heat insulating panel 15, and an exterior material 17. . In the present invention, the “column” refers to a through-column and a pipe column, which are structural members. However, in recent wooden buildings, there is a structure that does not use a through-column, and the present invention includes such a structure. In the case of a structure that does not use a through pillar, a pipe pillar is disposed at the position of the through pillar. In the present invention, the “cross member” is any of a beam, a girder, a trunk difference, and a foundation.

  As a basic structure of a wooden building by the wooden frame construction method, the first floor (1F) is usually a pillar (for example, a figure) placed on a base 13 placed on the foundation 21 and fixed to the foundation 21 with anchor bolts or the like. A column 11) above the paper is raised. Further, the trunk difference 14 is horizontally passed between two adjacent pillars and fixed, and the base 13 and the trunk difference 14 are connected between the two pillars (for example, a pipe pillar (for example, A column 11) below the paper surface of FIG. Among the wooden frame construction methods, in the SE construction method, structurally important pillars such as through pillars or pipe pillars instead of through pillars are directly attached to the foundation 21 using dedicated hardware, and the other tubular pillars are the base 13. Standing on the top.

  A plurality of joists 24 extending in the left-right direction in FIG. 1 are arranged on the base 13 in a direction perpendicular to the paper in FIG. A material 25 is placed, and a floor finish 26 is constructed on the floor base material 25 to constitute a floor on the first floor. The floor structure of the second floor (2F) is the same as that of the first floor except that a trunk difference 14 is used instead of the base 13. Recently, a floor structure that does not use joists 24 by using a thick plywood having a thickness of about 24 mm as the floor base material 25 has become widespread.

  In addition, gypsum board and plywood (not shown) are attached to the ceiling of the indoor to finish the ceiling. Recently, however, a structure in which the beam and joists are exposed is used.

  Since the outer peripheral wall structure of the present invention is external heat insulation, the heat insulation panel 15 is attached to the outdoor side of the column 11 (the right side in FIG. 1). The configuration of the heat insulating panel 15 will be described later.

  The outer peripheral wall structure of the present invention has a bearing wall in at least one corner, and one of the features of the present invention is the indoor side of the pillar 11 constituting the bearing wall as shown in FIGS. The fireproof board 51 is attached to the board. In FIG. 1, 52 and 53 are receiving materials for attaching the fireproof board 51. The receiving material 53 is attached to the floor base material 25, and the receiving material 52 is attached between the trunk difference 14 and the receiving material 53. In this way, by attaching the fireproof board 51 to the pillar 11 constituting the bearing wall, the pillar 11 is protected by the fireproof board 51, and the surface exposed to the indoor side is reduced, so that the structure is difficult to spread. Moreover, since the pillar 11 itself is large in width and depth, it is difficult to burn out, and it takes a long time for the fireproof board 51 to peel off even if the pillar 11 spreads from the exposed surface. Furthermore, since the receiving materials 52 and 53 for supporting the fireproof board 51 are protected by the fireproof board 51, it takes a long time to spread the fire. Therefore, the bearing wall according to the present invention has a structure with high indoor fire resistance. In the present invention, the load-bearing wall having fire resistance is provided in at least one of the corner portions that require high fire resistance among the load-bearing walls of the outer peripheral wall structure of the wooden building. All of the load-bearing walls provided in the section have the same fire resistance. Moreover, when providing a load-bearing wall other than a corner part, it is preferable to give this load-bearing wall the same fire resistance.

  As the fireproof board 51 used in the present invention, when the bearing wall is a face bearing bearing wall, a structural plywood having fire resistance is preferably used. For example, the commercially available “MOIS (registered trademark)” (Mitsubishi) For the structural wall of Shoji Building Materials Co., Ltd.) is preferably used. Further, when the bearing wall has a structure using braces, the interior of “MOIS (registered trademark)” (Mitsubishi Corporation Building Materials Co., Ltd.) marketed as the fireproof board 51 is preferably used.

  In the present invention, when the bearing wall is a face bearing wall, it can be constructed simply by attaching a structural plywood with fire resistance to the column 11, but a fireproof boat that is not for a bearing wall and a structural plywood may be combined. . Conventionally, the structural plywood is made of a pillar so that the surface of the structural plywood constituting the bearing wall is continuous with the surface of the pillar 11 so that no step is generated at the boundary between the indoor wall surface of the bearing wall and the indoor wall surface other than the bearing wall. It was attached between 11 and 11. The bearing wall structure according to the present invention can also be applied. As shown in FIGS. 5 and 6, receiving materials 53 and 54 for attaching the structural plywood 55 are respectively attached to the floor base material 25 and the trunk difference 14, and further, the receiving material 52 is replaced with the trunk difference 14 and the receiving material. Attached between 53. Each of the receiving members 52, 53, and 54 is smaller in depth than the receiving member 53 and the column 11 of FIG. 1 by the thickness of the structural plywood 55. The structural plywood 55 is attached to the receiving members 52, 53, 54 so that the indoor surface thereof is connected to the surface of the trunk difference 14 without any step, and the fireproof board 51 is covered with the receiving member 53, covering the structural plywood 55. 14 and pillar 11.

  In the present invention, when the region connected to the bearing wall is a region in which the space between the columns 11 and 11 is opened indoors as will be described later, in this region, the space between the columns 11 and 11 is blocked as in the conventional case. Therefore, it is not necessary to attach the structural plywood between the columns 11 and 11 so that the interior wall surface of the load-bearing wall and the surface of the interior finishing material are connected without any step at the boundary between them. Therefore, even when the bearing wall according to the present invention is a face bearing bearing wall made of a combination of a fireproof board and a structural plywood, as shown in FIGS. 7 and 8, the receiving material 54 as shown in FIG. Without using it, it is possible to attach the structural plywood 55 to the body difference 14, the receiving members 52, 53, and the pillars 11, and further attach the fireproof board 51 on the structural plywood 55 to form a load bearing wall. Simplified. Furthermore, as shown in FIGS. 1 and 2, the construction can be further simplified by using the fireproof board 51 for the structural wall.

  As described above, the structure of the load-bearing wall having fire resistance according to the present invention includes the form of FIG. 1 in which the fire-resistant board 51 is a structural plywood having fire resistance, the structural plywood 55 and the fire-resistant board 51. 5 and 7 to be used in combination are preferable, and are suitably selected according to the design conditions such as the required fire resistance and proof strength, the position and number of the load bearing walls, and the members to be used.

  Further, a part of the surface of the column 11 below the paper surface in FIG. 2 is exposed, and it is easy to spread the fire. Therefore, in the present invention, preferably, the width and depth of the pillar 11 are set by using a burn-in design. Alternatively, at least the surface is preferably made of a refractory member so that the pillar 11 is difficult to spread. Specifically, a method of performing incombustibility treatment on the surface of the pillar 11 or a method of attaching the fireproof board 51 used in the present invention to the surface of the pillar 11 as a face material can be used.

  In the present invention, the above-mentioned load-bearing wall having fire resistance is provided as a part of the outer peripheral wall at least at one corner of the outer peripheral wall as shown in FIGS. Although they are attached in parallel, it is preferable to enhance the fire resistance by attaching the fireproof board 51 to the pillar 11 constituting the outer peripheral wall even when providing a bearing wall in addition to the outer peripheral wall. For example, as shown in FIG. 4, when a load bearing wall that protrudes from the outer peripheral wall is configured in a direction orthogonal to the outer peripheral wall, the fireproof board 51 is attached to the pillar 11 that configures the outer peripheral wall. The fire spread to the outer peripheral wall can be delayed.

  1-8, the structure which made one surface the load-bearing wall among the two surfaces which comprise the corner part of an outer peripheral wall was shown, However, even if such a corner part is comprised with two load-bearing walls, good. For example, as shown in FIG. 9, a receiving material 52 having the same depth as that of the pillar 11 is newly attached to the pillar 11 in the corner portion above the paper surface via the fireproof board 51, and the new fireproof board 51 is covered by covering the receiving material 52. A bearing wall can be constructed by attaching. Further, as shown in FIG. 10, before attaching the fireproof board 51, the receiving members 52 having the same depth as the pillars 11 are attached to the two surfaces exposed to the indoor side of the pillars 11 at the corners above the paper surface. By attaching the fireproof board 11 to 52, a bearing wall can be configured. That is, in the bearing wall of FIG. 10, the fireproof board 11 is attached to the pillar 11 at the corner portion via the receiving member 52. 9 and 10, the B-B ′ cross section is the same as the A-A ′ cross section, that is, FIG. 1. Similarly, by using the receiving material 52, the bearing walls having the same configuration as the bearing walls of FIGS. 7 and 8 can be provided on the two surfaces constituting the corner portion. Similarly, by using a receiving material having a depth smaller than that of the pillar 11 as the receiving material 52, the bearing walls having the same configuration as the bearing walls of FIGS. 5 and 6 can be provided on the two surfaces constituting the corner portion. it can.

  A further feature of the present invention is that, in the region excluding the bearing wall, as shown in FIGS. 11 to 13, there is no inter-column between the indoor-side columns 11, 11 of the heat insulation panel 15, and there is no space between the columns 11, 11. There is a fire-resistant region that is open to the inside and has a stud 16 attached to the outdoor side of the heat insulating panel 15. In such a fireproof region, the fireproof interior panel 15b is attached to the indoor side of the heat insulating panel 15, and there are no studs on the indoor side, so that the indoor fireproof state is high. Therefore, in such a fire-resistant region, it is difficult for the pillars 16 to spread to the fire from the indoor, and even if a fire breaks out, it takes a long time for the heat insulation panel 15 and the exterior material 17 to peel off due to the spread of the pillars 16.

  In the fireproof region, the column 11 has a larger width and depth than the intermediate column as described above, so that it does not easily burn out even if it is spread, and a heat insulating panel 15 attached to the column 11 or an intermediate column 16 described later. Although it takes a long time to peel off, it is preferable that the width and depth are set using a burn-in design, or at least the surface is made of a refractory member, like the pillar 11 constituting the bearing wall.

  In the present invention, the fireproof area is provided in an area where indoor fire resistance is required. Preferably, all areas except the load bearing wall are set as the fireproof area to the extent possible. Further, the configuration of the bearing wall on the outdoor side can also be configured such that a spacer 16 is provided outside the heat insulating panel 15 and an exterior member 17 is attached to the spacer 16 in the same manner as the fireproof region.

  As described above, the outer peripheral wall structure of the present invention can have indoor fire resistance in each of the regions excluding the bearing wall and the bearing wall. Therefore, it is possible to easily cope with an area where high indoor fire resistance is required.

  Below, the attachment method of the heat insulation panel 15 and the stud 16 in the said fireproof area | region is demonstrated.

  The heat insulating panel 15 used in the present invention includes a plate-shaped heat insulating material 15b and a fireproof interior surface material 15a attached to one surface thereof, and the interior surface material 15a is arranged facing the indoor side. . In the present embodiment, in order to facilitate positioning and attachment of the heat insulation panel 15, as shown in FIG. 1, a receiving material 31 is attached horizontally along the base 13 on the outdoor side of the base 13, Although the heat insulation panel 15 is arrange | positioned on this receiving material 31, the receiving material 31 which concerns is not necessarily required.

  As the heat insulation panel 15 used in the present invention, a heat insulation panel marketed for external heat insulation is used as it is, or a fireproof interior surface material 15a is attached to a commercially available heat insulation material. As the interior face material 15a, a material that satisfies the fire resistance standard of the area where the wooden building of the present invention is built and has a cosmetic property that is not affected even when exposed to the indoor side is selected. Moreover, the heat insulation panel 15 which concerns on this invention may be provided with the structural plywood 15c on the opposite side to the interior surface material 15a. The structural plywood 15c is used to improve the strength of the heat insulating panel 15, but the structural plywood 15c may be omitted if the heat insulating material 15b alone has sufficient strength.

  As a specific example of the heat insulation panel 15 according to the present invention, for example, “Neofoam (registered trademark)” of Class A phenol foam heat insulation board No. 1 No. 2 F ☆☆☆☆ S specified in JIS A 9511 foam plastic heat insulation material (Asahi Kasei Construction Materials Co., Ltd.) and “Fenova Board (registered trademark)” (Sekisui Chemical Co., Ltd.) 9 mm thick structural plywood on the outdoor side, and the interior side material 15a having fire resistance and cosmetics 9 A heat insulating panel provided with “MOIS (registered trademark)” (Mitsubishi Corporation Building Materials Co., Ltd.) having a thickness of 5 mm is preferably used. The thickness of the heat insulating material 15b is appropriately selected depending on the environment of the area where the wooden building is constructed.

  In the fireproof region, the heat insulating panel 15 is directly attached to the cross member or the pillar 11 from the outdoor side, or the spacer 16 disposed on the outdoor side of the heat insulating panel 15 is attached to the cross member or the pillar 11 via the heat insulating panel 15. By attaching, it is fixed to the outdoor side of the shaft assembly. In the configuration shown in FIG. 9, the upper end is attached to the trunk difference 14 or the column 11, and the lower end is attached to the base 13. Further, the heat insulating panel 15 in contact with the pillar 11 can be attached at a plurality of locations in the vertical direction along the pillar 11.

  As shown in FIG. 14, the heat insulating panel 15 may be attached to the trunk difference 14 or the pillar 11 from the outdoor side with a screw 41, but may be attached with a nail or the like in addition to the screw 41. In this embodiment, since the heat insulation panel 15 has the structural plywood 15c on the outdoor side opposite to the interior surface material 15a, attachment members such as screws 41 and nails are preferably used. Moreover, when attaching the heat insulation panel 15, you may attach to a horizontal member or the pillar 11 by an upper-lower end via an adhesive agent. Furthermore, it is preferable that the boundary between the heat insulating panels 15 adjacent to each other in the horizontal direction and the vertical direction is attached with an airtight tape to enhance the airtightness.

  Further, in the SE construction method, there is a portion where the horizontal member or the pillar 11 corresponding to the lower end of the thermal insulation panel 15 at the position corresponding to the pillar 11 attached to the foundation 21 with the hardware does not exist. In such a case, the attachment position Is shifted upward from the other heat insulating panel 15 and attached to the lower end of the column 11.

  In the present invention, a stud 16 is disposed on the outdoor side of the heat insulating panel 15, and the stud 16 is attached to the pillar 11 or a cross member. Conventionally, the stud 16 is attached between the pillars 11 and 11 along with the pillar 11 on the indoor side, and as a member for attaching the outer wall 17 with a member for imparting resistance to wind pressure from the outside to the outer peripheral wall. Although used, in the present invention, such an action can be obtained by arranging the heat insulation panel 15 on the outdoor side. Further, in the present invention, since the exterior material 17 can be directly attached to the stud 16, the body edge is unnecessary. The spacer 16 may be attached to the cross member or the pillar 11 at least at the upper and lower ends with an attachment member from the outdoor side.

  In the embodiment of FIGS. 11 to 13, the upper end of the stud 16 is attached to the trunk difference 14 or the pillar 11, and the lower end is attached to the base 13 or the receiving material 31 attached to the base 13. In this embodiment, as shown in FIG. 14, a screw 42 is used as a mounting member for the stud 16, but a nail or the like is also used in addition to the screw 42. Moreover, when attaching the intermediate column 16 to the cross member or the column 11 with the heat insulation panel 15 interposed therebetween, it is preferable to use a screw that penetrates the heat insulation panel 15 and reaches the cross member or the column 11.

  Further, as shown in FIGS. 15 and 16, a receiving member 32 is attached to a cross member (body difference 14 in FIGS. 15 and 16) on the upper end side of the stud 16 for attaching the upper end of the stud 16. The upper end of the stud 16 may be attached to the material 32. Moreover, when the receiving materials 31 and 32 are provided, the heat insulation panel 15 can be fitted between the receiving materials 31 and 32, and it fixes the heat insulation panel 15 by attaching the stud 16 without temporarily fixing. be able to. In addition, when attaching the stud 16 to the receiving materials 31 and 32, as shown in FIG. 16, it may be attached to the receiving materials 31 and 32 with screws 42 from the outdoor side, but at this time, the receiving materials 31 and 32 are attached. It is preferable to use a screw that penetrates to reach the cross member or the column 11. A nail may be used instead of the screw 42.

  In addition, since there is no cross member or column 11 corresponding to the lower end of the intermediate column 16 at a position corresponding to the column 11 attached to the foundation 21 with the metal in the SE construction method, the lower end of the column 16 is similar to the above-described installation of the heat insulating panel 15. What is necessary is just to shift an attachment position upwards rather than the other intermediate pillar 16, and to attach to the lower end of the pillar 11. FIG. Further, the receiving material 31 attached to the base 13 may be extended to the lower side of the pillar 11 and attached to the receiving material 31.

  As described above, the inter-column 16 is attached to the cross member and the column 11 via the receiving members 31 and 32 as necessary. However, the inter-column 16 is also attached to the column 11 and the heat insulating panel 15 in places other than the upper end and the lower end. Is preferred. In particular, it is preferable that the pillars 16 are disposed along both horizontal end portions of the heat insulating panel 15 and the heat insulating panel 15 and the pillars 16 are fixed to each other at a plurality of positions in the vertical direction. Similarly, at the horizontal end of the heat insulating panel 15 in contact with the pillar 11, it is preferable that the pillars 16 are fixed to the heat insulating panel 15 at a plurality of positions in the vertical direction. It is more preferable to fix the intermediate pillar 16 to the pillar 11 using an attachment member that reaches the pillar 11.

  The depth, width, and arrangement pitch of the studs 16 used in the present invention take into consideration the strength against wind pressure from the outside, the position of the horizontal end of the heat insulation panel 15, the weight of the exterior member 17 attached to the studs 16 and the mounting pitch. Is set. The conventional intermediary pillar, which is arranged between the pillars 11 and 11 along with the pillar 11 and used as a support material for attaching the wall material on the indoor side, needs the same depth as the pillar 11. Since it does not receive, it can reduce to 30 mm in the range which can maintain the intensity | strength as the stud 16. Preferably, the spacer 16 has a depth of 30 mm to 120 mm, a width of 45 mm to 90 mm, and a pitch of 300 mm to 900 mm. Further, as shown in FIGS. 12 and 13, two pillars 16 and 16 may be disposed in contact with the horizontal end of the heat insulating panel 15 at a position corresponding to the pillar 11.

  Furthermore, in the present invention, an exterior material 17 is attached to the stud 16. In this embodiment, as shown in FIG. 14, the exterior material 17 is attached from the outdoor side with screws 43, but the present invention is not limited to this. The attachment method can be appropriately selected depending on the type of the exterior material 17. In the present invention, a sufficient space is formed between the exterior member 17 and the heat insulating panel 15 by the inter-columns 16, and a discharge path such as air permeability and rainwater is secured. As the exterior material 17, a commercially available exterior panel such as metal or ceramic siding, ALC (lightweight cellular concrete board) that satisfies the fire resistance standard of the outer wall is preferably used, but the present invention is limited to these. is not. In the present invention, since the stud 16 is used as a support material for the exterior material 17, it can be preferably used even in heavy ceramics siding.

  In the present invention, in addition to the members shown in FIGS. 1 to 16, for example, a waterproof sheet or the like may be appropriately attached to the outdoor side surface of the heat insulating panel 15 and the surface of the stud 16 before attaching the exterior member 17.

  As described above, the outer peripheral wall structure of the present invention does not require complicated construction and expensive members in addition to the commercially available members and the construction methods used. Further, in the present invention, since the body edge for attaching the exterior member 17 that has been conventionally required is not used, the cost for the body edge and its attachment becomes unnecessary. Therefore, according to the present invention, high indoor fire resistance can be obtained without increasing the construction cost.

  As described above, in the fireproof area according to the present invention, the attachment member is not exposed to the indoor side by attaching the heat insulation panel 15 and the interposition pillar 16 to the cross member or the pillar 11 from the outdoor side. In addition, since the heat insulating panel 15 includes the interior face material 15b having fire resistance on the indoor side, the cosmetics are also good. Therefore, in the fire-resistant region according to the present invention, an interior finish that covers the space between the pillars 11 and 11 is unnecessary, and the space is opened to the indoor side, thereby providing a wide indoor space.

  Conventionally, the space between the pillars 11 and 11 covered with interior materials such as gypsum board has been used for installation of facilities such as electric wiring, gas pipes, and water pipes. Therefore, it is necessary to construct such facilities before installing interior finishes. In conventional wooden buildings, these facilities are installed, interior finishes are installed, and all interior facilities are delivered to the owner or purchaser. It was.

  In the present invention, by constructing the outer peripheral wall with the above-mentioned fireproof wall and fireproof area, there is no need to install a gypsum board on the indoor side of the pillar, and the space between the pillars is opened. Since it can be provided in such a state, it can be sold in a structural frame (skeleton) such as a pillar, beam, or floor where indoor facilities are not constructed, similar to an RC structure (reinforced concrete structure) such as a condominium. When selling at the skeleton, the price for indoor equipment (infill) is not included in the selling price, and the construction cost for the outer peripheral wall is reduced in the present invention, so wooden buildings are offered at a significantly lower price than before. can do. Therefore, the purchaser is free to choose the indoor facilities such as the location and layout of the partition, electrical equipment such as the location of electrical equipment such as outlets and switches, lighting, and water facilities such as kitchens, bathrooms, washrooms, and toilets. It becomes possible to obtain wooden buildings at a lower price than before. Moreover, it becomes possible for the side selling such wooden buildings to respond to a wide range of requests from purchasers that could not be handled in the past.

  Also in the present invention, the space between the pillars 11 and 11 can be used for installation of equipment such as electric wiring, piping around water, and gas pipe as in the conventional case.

  In the above description, a two-story house has been described as an example as an embodiment. However, the wooden building of the present invention is not limited to this, and it may be a one-story or more than three stories. It is preferably applied to tenement houses such as three houses and apartments, meeting places, stores, warehouses, and various facilities.

  11: pillar, 13: foundation, 14: trunk difference, 15: heat insulation panel, 15a: interior surface material, 15b: heat insulation material, 15c: structural plywood, 16: intermediary pillar, 17: exterior material, 21: foundation, 24: Joist, 25: floor base plate, 26: floor finish, 31, 32: receiving material, 41, 42, 43: screw, 51: fireproof board, 52, 53, 54: receiving material, 55: structural plywood

Claims (4)

A heat insulating panel having a plate-like heat insulating material and a face material on the outdoor side of the frame of a wooden building having columns and cross members, and an exterior material arranged outside the heat insulating panel, at least one corner In the outer peripheral wall structure of a wooden building having a bearing wall in the part,
At least a part of the load-bearing wall is formed by attaching a fireproof board to the indoor side of the pillar,
At least a part of the area excluding the load-bearing wall, there is no inter-column between the pillars on the indoor side of the heat insulation panel, and the cross pillar attached to the cross member or the pillar is arranged on the outdoor side of the heat insulation panel. , The heat insulation panel has a region with an interior surface material having fire resistance on the indoor side,
An outer peripheral wall structure of a wooden building, wherein the exterior material is attached to the studs.   2. The outer peripheral wall structure of a wooden building according to claim 1, wherein at least a surface of the column in the region excluding the load-bearing wall is made of a fireproof member.   3. The outer peripheral wall structure of a wooden building according to claim 1, wherein a width of the stud is 45 mm to 90 mm and a depth is 30 mm to 120 mm.   A wooden building having the outer peripheral wall structure according to any one of claims 1 to 3.

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