JP2020070579A - Curved outer wall fixing structure - Google Patents

Abstract

To provide a curved outer wall fixing structure capable of forming a continuous curved surface while preventing interference with other members.SOLUTION: An upper outer wall reinforcing member 50 is provided on an indoor side of an outdoor wall part 44 of a corner outer wall 37, and an upper end part 86 is fixed to a skeleton of a building 12. A first reinforcing wall part 58 for supporting the outdoor wall part 44 of the corner external wall 37 from the indoor side is provided. Further, a lower outer wall reinforcing member 52 is positioned on the indoor side with respect to an upper outer wall reinforcing member 50. Therefore, even when the outside wall part 44 and a balcony spandrel wall 36 are continuously arranged and the balcony spandrel wall 36 is inclined, interference between the balcony spandrel wall 36 and the lower outer wall reinforcing member 52 can be suppressed. That is, a part of an outer wall 18 corresponding to a column 20 can also be angled to make the whole of the balcony spandrel wall 36 a continuous curved surface. Thus, the continuous curved surface can be formed while preventing interference with other members.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a curved outer wall fixing structure.

  The following Patent Document 1 discloses an outer wall structure. This outer wall structure has a plurality of outer wall panels, and by arranging each outer wall panel at an angle, a curved outer wall having a curved surface in a plan view of the building is formed on a part of the outer wall of the building. is doing. It should be noted that some of the outer wall panels are supported by pillars having a rectangular cross-sectional shape, whereby the curved outer wall is attached to the body of the building.

JP, 2006-138105, A

  Here, among the plurality of outer wall panels, the outer wall panel corresponding to the pillar cannot be angled because it is arranged along the pillar. That is, the portion of the curved outer wall corresponding to the pillar is linear in the plan view of the building. For this reason, the outer surface of the curved surface may not be a continuous curved surface, and the external appearance may be deteriorated. In order to deal with this, it is conceivable that the outer wall panel corresponding to the pillar is also inclined to form a continuous curved surface. In this case, when making the waist wall of the balcony of the building a curved surface, the outer wall panel corresponding to the pillar is tilted among the plurality of outer wall panels that make up the waist wall, but inside the balcony and above the waist wall. The provided outer wall, which is not a curved surface, is fixed along the column. Therefore, when the outer wall panel of the waist wall is continuously arranged with the outer wall of the interior of the balcony fixed along the pillar in consideration of the appearance and design, the outer wall panel of the waist wall is inclined when the outer wall panel is tilted. There is a possibility that the panel may interfere with the pillar or the member attached to the pillar. Therefore, the above-mentioned prior art has room for improvement in this respect.

  The present invention has been made in view of the above problems, and an object thereof is to obtain a curved outer wall fixing structure capable of forming a continuous curved surface while preventing interference with other members.

  The curved outer wall fixing structure according to the first aspect is provided on the outdoor side of the balcony and is provided on the balcony side waist wall formed in an arc shape in a plan view of the building, and on the upper side of the balcony wall, A corner outer wall having an outdoor wall portion that is continuous with an outer wall provided on the outdoor side surface of the building, and is provided in the vertical direction of the building and is provided on the indoor side of the outdoor wall portion of the corner outer wall, and the upper end portion is An upper outer wall reinforcing member having a first reinforcing wall portion that is fixed to the frame of the building and that supports the outdoor wall portion from the indoor side, and is provided in a position that extends in the vertical direction of the building and corresponds to the waist wall of the balcony. In addition, the lower outer wall reinforcing member has a lower end fixed to the body of the building and an upper end joined to the indoor side of the upper outer wall reinforcing member.

  A curved outer wall fixing structure according to a second aspect is the invention according to the first aspect, wherein the upper outer wall reinforcing member is extended from the end of the first reinforcing wall portion on the balcony side to the indoor side. A cross-sectional shape orthogonal to the longitudinal direction is formed in an L shape by the two reinforcing wall portions, and the lower outer wall reinforcing member is a third reinforcing wall portion joined to the indoor side of the first reinforcing wall portion, The fourth reinforcing wall portion joined to the indoor side of the second reinforcing wall portion has an L-shaped cross section orthogonal to the longitudinal direction.

  A curved outer wall fixing structure according to a third aspect is the invention according to the second aspect, wherein the second reinforcing wall portion of the upper outer wall reinforcing member is provided integrally with the outdoor wall portion of the corner outer wall and the balcony While supporting the upper wall part of the balcony that is continuously provided with the outer wall provided inside of the inside from the indoor side, the fourth reinforcing wall part of the lower outer wall reinforcing member is provided inside the waist wall of the balcony and the inside of the balcony. The balconi lower wall portion provided between the provided outer wall and the outer wall is supported from the indoor side.

  In the invention according to the second or third aspect, the curved outer wall fixing structure according to the fourth aspect is such that the upper end portion of the upper outer wall reinforcing member is formed in a plate shape having a building vertical direction as a thickness direction, and It is fixed to the beam through an upper beam fixing member whose end faces are joined to the inner side surface of the first reinforcing wall portion and the inner side surface of the second reinforcing wall portion, and the lower end portion of the lower outer wall reinforcing member is Beam through a lower beam fixing member which is formed in a plate shape having a vertical direction in the building as a thickness direction and whose upper side surface is joined to the lower end surface of the third reinforcing wall portion and the lower end surface of the fourth reinforcing wall portion. It is fixed to.

  A curved outer wall fixing structure according to a fifth aspect is the invention according to the fourth aspect, wherein the upper beam fixing member and the lower beam fixing member are fixed around a portion of the beam where a column is attached. At the same time, the width dimension of each portion sandwiched between the column and the upper outer wall reinforcing member or the lower outer wall reinforcing member is narrower than the width dimension of the other portion when viewed in the direction perpendicular to the surface.

  A curved outer wall fixing structure according to a sixth aspect is the invention according to the fourth or fifth aspect, wherein the plate thickness of the upper beam fixing member and the lower beam fixing member is the upper outer wall reinforcing member and the lower outer wall reinforcing member. It is made thicker than the plate thickness of the member.

  A curved outer wall fixing structure according to a seventh aspect is the invention according to any one of the first to sixth aspects, wherein the upper outer wall reinforcing member and the lower outer wall reinforcing member are provided with a spacer interposed therebetween. It is joined.

  According to the first aspect, the curved outer wall fixing structure includes the balcony waist wall, the corner outer wall, the upper outer wall reinforcing member, and the lower outer wall reinforcing member. The balconi waist wall is provided on the outdoor side of the balconi and is formed in an arc shape in a plan view of the building. The corner outer wall is provided in the upper part of the building of the balcony wall, and has an outdoor wall portion that is continuous with the outer wall of the outdoor side surface of the building. The upper outer wall reinforcing member extends in the vertical direction of the building, is provided on the indoor side of the outdoor wall portion of the corner outer wall, and has the upper end fixed to the body of the building. The upper outer wall reinforcing member has a first reinforcing wall portion that supports the outdoor wall portion of the corner outer wall from the indoor side. The lower outer wall reinforcing member extends in the vertical direction of the building, is provided at a position corresponding to the waist wall of the balcony, and has a lower end fixed to the body of the building. Further, the lower outer wall reinforcing member has an upper end portion joined to the indoor side of the upper outer wall reinforcing member. That is, the upper outer wall reinforcing member and the lower outer wall reinforcing member are connected in the vertical direction of the building, and the corner outer wall is securely fixed to the building frame. Further, the lower outer wall reinforcing member is located on the indoor side with respect to the upper outer wall reinforcing member. Therefore, even if the outdoor wall and the balcony wall are continuously arranged and the balcony wall is tilted toward the indoor side, the lower outer wall reinforcing member is located on the indoor side, so Interference with the side outer wall reinforcing member can be suppressed. That is, the part corresponding to the pillar in the balconi waist wall can also be angled to make the entire balconi waist wall a continuous curved surface.

  According to the second aspect, the upper outer wall reinforcing member is formed such that the first reinforcing wall portion and the second reinforcing wall portion have an L-shaped cross section orthogonal to the longitudinal direction. The second reinforcing wall portion extends from the balcony-side end of the first reinforcing wall portion toward the indoor side. On the other hand, the lower outer wall reinforcing member is formed such that the third reinforcing wall portion and the fourth reinforcing wall portion have an L-shaped cross section orthogonal to the longitudinal direction. The third reinforcing wall portion is joined to the indoor side of the first reinforcing wall portion of the upper outer wall reinforcing member. The fourth reinforcing wall portion is joined to the indoor side of the second reinforcing wall portion of the upper outer wall reinforcing member. That is, the upper outer wall reinforcing member and the lower outer wall reinforcing member have a continuous L-shaped cross-sectional shape. Therefore, the bending rigidity of the upper outer wall reinforcing member and the lower outer wall reinforcing member is integrally improved. As a result, it is possible to improve the mounting rigidity of the corner outer wall attached to the upper outer wall reinforcing member to the building body of the building.

  According to the third aspect, the second reinforcing wall portion of the upper outer wall reinforcing member is provided integrally with the outdoor wall portion of the corner outer wall and is continuously provided with the outer wall provided inside the balcony. The section is supported from the indoor side. Further, the fourth reinforcing wall portion of the lower outer wall reinforcing member supports the balcony lower part wall portion provided between the waist wall of the balcony and the outer wall provided inside the balcony from the indoor side. That is, the building body including the upper outer wall reinforcing member and the lower outer wall reinforcing member facing the balcony is covered with the outer wall, the balcony upper wall portion, and the balcony lower wall portion. Thereby, the fire resistance can be further improved.

  According to the fourth aspect, the upper end portion of the upper outer wall reinforcing member is fixed to the beam via the upper beam fixing member. The upper beam fixing member is formed in a plate shape having a vertical direction in the building as a thickness direction, and end faces thereof are respectively joined to the inner side surface of the first reinforcing wall portion and the inner side surface of the second reinforcing wall portion. On the other hand, the lower end portion of the lower outer wall reinforcing member is fixed to the beam via the lower beam fixing member. The lower beam fixing member is formed in a plate shape having a vertical direction in the building as a thickness direction, and upper side surfaces thereof are respectively joined to the lower end surface of the third reinforcing wall portion and the lower end surface of the fourth reinforcing wall portion. That is, since the lower end portion of the lower outer wall reinforcing member located indoors with respect to the upper outer wall reinforcing member is joined to the upper side surface, not the end surface of the lower beam fixing member, the lower beam fixing member in plan view There is no need to change the size significantly relative to the upper beam fixing member. Therefore, the difference between the mounting rigidity of the upper outer wall reinforcing member to the beam and the mounting rigidity of the lower outer wall reinforcing member to the beam can be reduced.

  According to the fifth aspect, the upper beam fixing member and the lower beam fixing member are fixed around the portion of the beam where the pillar is attached. Further, in the upper beam fixing member and the lower beam fixing member, the width dimension of each part sandwiched between the column and the upper outer wall reinforcing member or the lower outer wall reinforcing member is narrower than the width dimension of the other part when viewed in the direction perpendicular to the surface. Has been done. Therefore, even when the fireproof coating material is wound around the pillar, the amount of interference between the fireproof coating material and the upper beam fixing member and the lower beam fixing member can be reduced. This facilitates construction.

  According to the sixth aspect, since the plate thicknesses of the upper beam fixing member and the lower beam fixing member are made larger than the plate thicknesses of the upper outer wall reinforcing member and the lower outer wall reinforcing member, the upper outer wall reinforcing member and the lower outer wall reinforcing member are formed. It is possible to further improve the mounting rigidity of the outer wall reinforcing member to the beam.

  According to the seventh aspect, since the upper outer wall reinforcing member and the lower outer wall reinforcing member are joined via the spacer, it is possible to adjust the thickness of the spacer with respect to the upper outer wall reinforcing member. The position of the lower outer wall reinforcing member located inside can be adjusted. Therefore, the position of the lower outer wall reinforcing member can be easily adjusted according to the angle of the tilted waist wall of the balcony.

  As described above, the curved outer wall fixing structure according to the present invention has an excellent effect that a continuous curved surface can be formed while preventing interference with other members.

1 is a schematic perspective view showing a building having a curved outer wall fixing structure according to an embodiment. It is a schematic perspective view which expands and shows the balconi waist wall etc. of the building which has a curved outer wall fixing structure which concerns on one Embodiment. It is sectional drawing which shows the state which looked at the principal part of the curved surface outer wall fixing structure which concerns on one Embodiment from the upper side. It is a schematic perspective view which shows the state which looked at the principal part of the curved surface outer wall fixing structure which concerns on one Embodiment from the indoor side. It is a schematic perspective view which expands and shows the Z section in FIG. It is a schematic perspective view which shows the upper beam fixing member of the curved surface outer wall fixing structure which concerns on one Embodiment. It is a schematic perspective view which shows the lower beam fixing member of the curved surface outer wall fixing structure which concerns on one Embodiment.

  An embodiment of a curved outer wall fixing structure according to the present invention will be described below with reference to FIGS. 1 to 7.

(overall structure)
As shown in FIG. 1, a building 12 having a curved outer wall fixing structure 10 has, as an example, a building frame having a steel frame structure, and a first floor portion 14 provided on a foundation (not shown) and a first floor. The second floor 16 is provided on the upper side of the building in the vertical direction. In the following description, the girder direction of the building will be referred to as the X direction, the end direction will be referred to as the Y direction, and the vertical direction (height direction) will be referred to as the Z direction. The X direction, the Y direction, and the Z direction are orthogonal to each other. The X direction and the Y direction are examples of a horizontal direction that intersects the vertical direction.

  The building 12 is configured to include an outer wall 18 that forms the outer shape of the building 12, a pillar 20 that forms a part of the skeleton, a ceiling beam (not shown) as a beam, and a floor beam 22 (see FIG. 3). There is. The outer wall 18 is configured by arranging a plurality of ALC panels 24 (see FIG. 3) whose longitudinal direction is the Z direction in the X direction and the Y direction except for the window portion 26. The ALC panel 24 is made of plate-shaped lightweight cellular concrete.

  A curved outer wall portion 28 and a entrance portion 30 are provided in a substantially central portion in the X direction on the front side of the building 12, and the curved outer wall portion 28 is curved in a convex shape to the outdoor side along the Y direction. It is formed in an arc shape of 180 ° in a plan view of the building.

  The entrance 30 is provided in a part of the first floor 14, and it is possible to move between the inside and outside of the building 12 via an entrance door 32 that opens and closes an entrance opening (not shown) formed in the outer wall 18. It is said that.

(Balconi)
A balcony 34 is provided in a part of the curved outer wall portion 28 corresponding to the second floor portion 16. The balcony 34 is provided inside the building 12 in a range on one side in the X direction from a partition wall (not shown) that extends from the apex portion T of the curved outer wall portion 28 along the Y direction toward the indoor side. In addition, the indoor portion of the curved outer wall portion 28 opposite to the balcony 34 across the partition wall is a part of the living room of the second floor portion 16, and the entrance portion 30 is arranged on the lower side in the Z direction of the portion. ing. Between the balcony 34 and the living room adjacent in the X direction, that is, at the apex portion T of the curved outer wall portion 28 in the plan view of the building, as shown in FIG. 3, the pillar 20 extending in the Z direction is provided. A floor beam 22 of the second floor 16 to which the lower ends of the columns 20 are connected and a ceiling beam of the second floor 16 (not shown) to which the upper ends of the columns 20 are connected are provided. The floor beam 22 includes a portion extending from the pillar 20 toward the indoor side along the Y direction, and a portion curved toward the indoor side from the pillar 20 along the X direction toward the outdoor side. It is configured. The ceiling beam has the same structure as the floor beam 22. Further, as shown in FIG. 1, the indoor portion on the Z direction lower side of the balcony 34 in the curved outer wall portion 28 is a part of the living room of the first floor portion 14.

(Balconi waist wall)
The balcony 34 includes a balcony waist wall 36, a corner outer wall 37, and a balcony inner / outer wall 41 (see FIG. 3) as an outer wall provided inside the balcony 34. The balconi waist wall 36 is provided on the outdoor side of the balconi 34 and is formed in an arc shape along the curved outer wall portion 28. That is, the balconi waist wall 36 has a convex curve toward the outdoor side in a plan view of the building. The balconi waist wall 36 extends from the floor of the second floor 16 to a height about half the height of the balconi 34. As shown in FIG. 3, the balconi waist wall 36 includes a waist wall frame 38, a plurality of ALC panels 40, and a siding material 42. The waist wall frame 38 is formed in a convex curve toward the outdoor side in a plan view of the building and is fixed to the body of the building 12 by a fastening structure (not shown).

  The ALC panel 40 is formed of a lightweight cellular concrete in the shape of a rectangular plate whose longitudinal direction is in the Z direction (see FIG. 2), and a plurality of ALC panels 40 are attached to the outdoor side of the waist wall frame 38. The ALC panel 24 is attached at an angle to the other adjacent ALC panels 40 along the curved waist wall frame 38 and the ALC panel 24 of the outer wall 18. That is, the ALC panel 40 corresponding to the pillar 20 among the plurality of ALC panels 40 is also in an angled state. Further, a gap is provided between the ALC panels 40 and between the ALC panel 40 and the ALC panel 24 of the outer wall 18, and a waterproof sealing material (not shown) is provided in the gap. The ALC panel 40 and the ALC panel 24 of the outer wall 18, which correspond to the boundary between the balcony 34 and the other room on the opposite side of the vertex T, are continuously arranged. That is, the ridgeline 40A on the ALC panel 24 side of the ALC panel 40 adjacent to the ALC panel 24 of the outer wall 18 and on the outdoor side in the Y direction, and the ALC panel 40 side and the Y direction of the ridge line 40A facing this in the X direction. The ridgeline 24A on the outdoor side is arranged at substantially the same position in the Y direction.

  The siding material 42 is formed in a plate shape, and a plurality of siding materials 42 are attached to the inside of the waist wall frame 38. The siding material 42 is set to have a smaller thickness than the ALC panel 40. The siding material 42 is attached at an angle to the other adjacent siding materials 42 along the curved waist wall frame 38, similarly to the ALC panel 40.

(Corner outer wall)
As shown in FIG. 2, a corner outer wall 37 having a longitudinal direction in the Z direction is provided on the Z direction upper side of the balcony wall 36. Specifically, the corner outer wall 37 is provided between the lower waist wall 36 of the balcony and the lower end of the ALC panel 24 in the outer wall 18 of the balcony 34 on the upper side in the Z direction. As shown in FIG. 3, the outer corner wall 37 is made of lightweight cellular concrete in which an outdoor wall portion 44 and a balcony upper wall portion 46 have an L-shaped cross section orthogonal to the Z direction. The outdoor wall portion 44 is continuous with the ALC panel 24 of the adjacent outer wall 18 and faces the outdoor side similarly to the ALC panel 40 of the balcony waist wall 36. In addition, the corner outer wall 37 is arranged such that the outdoor wall portion 44 and the balcony upper wall portion 46 are parallel to the side surfaces of the columns 20, respectively, and the plate thickness of the outdoor wall portion 44 is the ALC panel of the outer wall 18. The plate thickness is approximately equal to 24.

  The balcony upper wall portion 46 extends from the end of the outdoor wall portion 44 on the balcony side 34 toward the indoor side along a substantially perpendicular direction of the outdoor wall portion 44. The plate thickness of the balcony upper wall portion 46 is substantially the same as the plate thickness of the ALC panel 24 of the adjacent balcony inner / outer wall 41 in the balcony 34.

  The balcony inner / outer wall 41 is provided inside the balcony 34. Specifically, it is formed in a substantially L shape in a plan view of the building so as to partition the balcony 34 and the living room of the second floor 16, and is formed by arranging a plurality of ALC panels 24 in the same manner as the outer wall 18. (Only a part is shown in the figure).

(Upper outer wall reinforcing member)
As shown in FIG. 4, the corner outer wall 37 is fixed to the body of the building 12 via an outer wall reinforcing member 48. The outer wall reinforcing member 48 includes an upper outer wall reinforcing member 50, a lower outer wall reinforcing member 52, an upper beam fixing member 54, and a lower beam fixing member 56. The upper outer wall reinforcing member 50 constitutes the upper part of the outer wall reinforcing member 48 and extends in the Z direction, and is formed in an L-shaped cross section by the first reinforcing wall portion 58 and the second reinforcing wall portion 60. There is. The first reinforcing wall portion 58 is formed in a plate shape having a plate thickness direction substantially in the Y direction, and is joined to an indoor side surface of the outdoor wall portion 44 of the corner outer wall 37 (see FIG. 3). In other words, the first reinforcing wall portion 58 is provided at a position corresponding to the outdoor wall portion 44 of the corner outer wall 37.

  The second reinforcing wall portion 60 is formed in a plate shape having a plate thickness direction substantially in the X direction, and extends from the end portion of the first reinforcing wall portion 58 on the side of the balcony 34 toward the indoor side along the substantially Y direction. It has been extended. The second reinforcing wall portion 60 is joined to the indoor side surface of the balcony upper wall portion 46 of the corner outer wall 37 (see FIG. 3).

(Lower outer wall reinforcement member)
The lower outer wall reinforcing member 52 constitutes a lower portion of the outer wall reinforcing member 48, and extends in the Z direction like the upper outer wall reinforcing member 50. The lower outer wall reinforcing member 52 is formed by the third reinforcing wall portion 62 and the fourth reinforcing wall portion 64 to have an L-shaped cross section. The third reinforcing wall portion 62 is formed in a plate shape having the plate thickness direction substantially in the Y direction, and the outdoor side surface of the upper end portion 66 of the first reinforcing wall portion 58 of the upper outer wall reinforcing member 50 is interposed by the spacer 68. It is joined to the indoor side surface of the lower end portion 70 (see FIG. 3). That is, the third reinforcing wall portion 62 is located on the indoor side with respect to the first reinforcing wall portion 58.

  The fourth reinforcing wall portion 64 is formed in a plate shape having a plate thickness direction substantially in the X direction, and extends from the end of the third reinforcing wall portion 62 on the side of the balcony 34 toward the indoor side along the substantially Y direction. It has been extended. The outdoor side surface of the upper end portion 72 of the fourth reinforcing wall portion 64 is joined to the indoor side surface of the lower end portion 74 of the second reinforcing wall portion 60 of the upper outer wall reinforcing member 50 via the spacer 68 (see FIG. 3). That is, the fourth reinforcing wall portion 64 is located indoors with respect to the second reinforcing wall portion 60. In addition, the indoor side surface of a balcony lower part wall portion 92 described later is joined to the fourth reinforcing wall portion 64 (see FIG. 3).

(Upper beam fixing member)
As shown in FIG. 6, the upper beam fixing member 54 is formed in a substantially V shape in a plan view of the building and in a plate shape having the Z direction as the plate thickness direction. Specifically, the upper beam fixing member 54 has a first extended side portion 76, a second extended side portion 78, a first fixed side portion 80, and a second fixed side portion 82. The second extended side portion 78 extends from the end of the first extended side portion 76 extending in the substantially X direction on the side of the balcony 34 toward the indoor side along the substantially Y direction. The first fixed side portion 80 extends from the end of the first extended side portion 76 on the side opposite to the balcony 34 along the substantially Y direction toward the indoor side. Furthermore, the second fixed side portion 82 extends from the indoor end of the second extended side portion 78 to the opposite side of the balcony 34 along the substantially X direction. Each of the first fixed side portion 80 and the second fixed side portion 82 has a through hole 84 penetrating in the plate thickness direction.

  The upper beam fixing member 54 is joined to the upper end portion 86 of the upper outer wall reinforcing member 50. Specifically, the outdoor end surface 88 of the first extended side portion 76 of the upper beam fixing member 54 is joined to the indoor side surface of the first reinforcing wall portion 58 of the upper outer wall reinforcing member 50. The end surface 90 of the second extended side portion 78 of the upper beam fixing member 54 on the side of the balcony 34 is joined to the indoor side (the side opposite to the balcony 34) of the second reinforcing wall portion 60 of the upper outer wall reinforcing member 50. There is.

(Lower beam fixing member)
As shown in FIG. 7, like the upper beam fixing member 54, the lower beam fixing member 56 is formed in a plate shape having a substantially V shape in the plan view of the building and having the Z direction as the plate thickness direction. Specifically, the lower beam fixing member 56 has a first extended side portion 94, a second extended side portion 96, a first fixed side portion 98, and a second fixed side portion 100. The second extended side portion 96 extends from the end of the first extended side portion 94 extending in the substantially X direction on the side of the balcony 34 toward the indoor side along the approximately Y direction. Further, the first fixed side portion 98 extends from the end of the first extended side portion 94 opposite to the balcony 34 along the substantially Y direction toward the indoor side. Furthermore, the second fixed side portion 100 extends from the indoor-side end portion of the second extended side portion 96 toward the opposite side of the balcony 34 along the substantially X direction. Each of the first fixed side portion 98 and the second fixed side portion 100 has a through hole 102 penetrating in the plate thickness direction.

  The lower beam fixing member 56 is joined to the lower end portion 104 of the lower outer wall reinforcing member 52. Specifically, the upper side surface 106 of the lower beam fixing member 56 is joined to the lower end surface 108 of the third reinforcing wall portion 62 and the lower end surface 110 of the fourth reinforcing wall portion 64 of the lower outer wall reinforcing member 52.

  As shown in FIG. 3, the lower beam fixing member 56 is fixed to the floor beam 22 so as to surround the area of the floor beam 22 to which the column 20 is attached. The fixing to the floor beam 22 is performed at a position adjacent to the fire-resistant coating material 21 made of rock wool or the like that is wound around the outer periphery of the column 20 at the first fixing side portion 98 and the second fixing side portion 98 of the lower beam fixing member 56. The through holes 102 of the fixed side portion 100 and the fastening holes (not shown) formed in the floor beam 22 corresponding to the through holes 102 are fastened by inserting and fastening fasteners (not shown). Although not shown, the upper beam fixing member 54 described above is also fixed to the ceiling beam so as to surround the periphery of the portion of the ceiling beam to which the column 20 is attached, like the lower beam fixing member 56. That is, a through hole 84 is formed in each of the first fixed side portion 80 and the second fixed side portion 82 of the upper beam fixing member 54, and a fastening hole (not shown) formed in the ceiling beam corresponding to the through hole 84. It is fixed by inserting and fastening a fastener (not shown).

  Further, the lower beam fixing member 56 is a portion sandwiched between the column 20 and the lower outer wall reinforcing member 52 when viewed in the direction perpendicular to the plane (Z direction), that is, the first extended side portion 94 and the second extended side portion. The width dimension of each of 96 and 96 is set narrower than the width dimension of the first fixed side portion 98 (or the second fixed side portion 100). Similarly, the above-described upper beam fixing member 54 is also a portion sandwiched between the column 20 and the upper outer wall reinforcing member 50 when viewed in the direction perpendicular to the plane (Z direction), that is, the first extended side portion 76 and the second extended portion. The width dimension of each of the side portions 78 is set narrower than the width dimension of the first fixed side portion 80 (or the second fixed side portion 82) (see FIG. 4).

(Balconi lower wall)
As shown in FIG. 4, a balcony lower wall portion 92 is provided on the corner outer wall 37 on the Z direction lower side of the balcony upper wall portion 46. The balconi lower wall portion 92 is provided between the ALC panel 40 of the balconi waist wall 36 and the ALC panel 24 of the balconi inner and outer walls 41 (see FIG. 3), and is formed of lightweight cellular concrete in the Z direction. It is formed in a rectangular plate shape in the longitudinal direction. Between the balcony lower wall portion 92 and the ALC panel 40, between the balcony lower wall portion 92 and the ALC panel 24 of the balcony inner / outer wall 41, between the balcony lower wall portion 92 and the balcony upper wall portion 46, and the balcony lower wall portion. Between the 92 and the floor part (not shown) of the balcony 34, waterproof seal members (not shown) are provided. Further, the balcony lower wall portion 92 is supported from the indoor side by the fourth reinforcing wall portion 64 of the lower outer wall reinforcing member 52.

(Operation and effect of the embodiment)
Next, the operation and effect of this embodiment will be described.

  According to the present embodiment, as shown in FIG. 3, the curved outer wall fixing structure 10 includes the balcony back wall 36, the corner outer wall 37, the upper outer wall reinforcing member 50, and the lower outer wall reinforcing member 52. ing. The balconi waist wall 36 is provided on the outdoor side of the balconi 34 and is formed in an arc shape in a plan view of the building. The corner outer wall 37 is provided above the building of the balcony waist wall 36, and has an outdoor wall portion 44 that is continuous with the outer wall 18 on the outdoor side surface of the building 12. As shown in FIG. 4, the upper outer wall reinforcing member 50 extends in the Z direction and is provided on the indoor side of the outdoor wall portion 44 of the corner outer wall 37, and the upper end portion 86 is fixed to the body of the building 12. Has been done. Further, the upper outer wall reinforcing member 50 has a first reinforcing wall portion 58 that supports the outdoor wall portion 44 of the corner outer wall 37 from the indoor side. The lower outer wall reinforcing member 52 extends in the Z direction and is provided at a position corresponding to the waist wall 36 of the balcony, and the lower end 104 is fixed to the body of the building 12. Further, the lower outer wall reinforcing member 52 has upper end portions 66 and 72 joined to the indoor side of the upper outer wall reinforcing member 50. That is, the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 are connected in the vertical direction of the building, and the corner outer wall 37 is reliably fixed to the frame of the building 12. Further, the lower outer wall reinforcing member 52 is located indoors with respect to the upper outer wall reinforcing member 50. Therefore, even if the ALC panel 40 of the balconi waist wall 36 is inclined toward the indoor side after the outdoor wall portion 44 and the balconi waist wall 36 are continuously arranged, as shown in FIG. Is located indoors with respect to the upper outer wall reinforcing member 50, it is possible to suppress the interference between the ALC panel 40 of the balcony waist wall 36 and the lower outer wall reinforcing member 52. That is, the portion of the balconi waist wall 36 that corresponds to the column 20 can also be angled to make the entire balconi waist wall 36 a continuous curved surface. Thereby, a continuous curved surface can be formed while preventing interference with other members.

  Further, as shown in FIG. 3, the upper outer wall reinforcing member 50 is formed by the first reinforcing wall portion 58 and the second reinforcing wall portion 60 so that the cross-sectional shape orthogonal to the longitudinal direction is L-shaped. The second reinforcing wall portion 60 extends from the end of the first reinforcing wall portion 58 on the side of the balcony 34 toward the indoor side. On the other hand, in the lower outer wall reinforcing member 52, the third reinforcing wall portion 62 and the fourth reinforcing wall portion 64 are formed to have an L-shaped cross section orthogonal to the longitudinal direction. The third reinforcing wall portion 62 is joined to the indoor side of the first reinforcing wall portion 58 of the upper outer wall reinforcing member 50. The fourth reinforcing wall portion 64 is joined to the indoor side of the second reinforcing wall portion 60 of the upper outer wall reinforcing member 50. That is, the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 have a continuous L-shaped cross-sectional shape. Therefore, the bending rigidity of the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 is integrally improved. As a result, the mounting rigidity of the corner outer wall 37 attached to the upper outer wall reinforcing member 50 to the body of the building 12 can be improved.

  Further, the second reinforcing wall portion 60 of the upper outer wall reinforcing member 50 supports the balcony upper wall portion 46 of the corner outer wall 37 from the indoor side. In addition, the fourth reinforcing wall portion 64 of the lower outer wall reinforcing member 52 is a lower balcony wall portion 92 provided between the balcony rear wall 36 and the balcony inner / outer wall 41 provided inside the balcony 34 (see FIG. 4). ) Is supported from the indoor side. That is, the skeleton of the building 12 including the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 facing the balcony 34 includes the outer wall 18, the balcony upper wall portion 46, and the balcony lower portion, which are made of lightweight cellular concrete having fire resistance. It is covered by the wall portion 92. Thereby, the fire resistance can be further improved.

  Furthermore, as shown in FIG. 6, the upper end portion 86 of the upper outer wall reinforcing member 50 is fixed to the ceiling beam via the upper beam fixing member 54. The upper beam fixing member 54 is formed in a plate shape having the building vertical direction as the thickness direction, and the end surfaces 88 and 90 are formed on the inner side surface of the first reinforcing wall portion 58 and the inner side surface of the second reinforcing wall portion 60. Each is joined. On the other hand, as shown in FIG. 7, the lower end portion 104 of the lower outer wall reinforcing member 52 is fixed to the floor beam 22 (see FIG. 3) via the lower beam fixing member 56. The lower beam fixing member 56 is formed in a plate shape having a vertical direction in the building as a thickness direction, and an upper side surface 106 serves as a lower end surface 108 of the third reinforcing wall portion 62 and a lower end surface 110 of the fourth reinforcing wall portion 64. Each is joined. That is, since the lower end portion 104 of the lower outer wall reinforcing member 52 located indoors with respect to the upper outer wall reinforcing member 50 is joined to the upper side surface 106 instead of the end surface of the lower beam fixing member 56, the plan view It is not necessary to change the size of the lower beam fixing member 56 with respect to the upper beam fixing member 54. Therefore, the difference between the mounting rigidity of the upper outer wall reinforcing member 50 to the ceiling beam and the mounting rigidity of the lower outer wall reinforcing member 52 to the floor beam 22 can be reduced.

  Further, as shown in FIG. 3, the upper beam fixing member 54 and the lower beam fixing member 56 are fixed around the portion of the ceiling beam and the floor beam 22 to which the column 20 is attached. In addition, the upper beam fixing member 54 and the lower beam fixing member 56 are the first extended side portions 76, 94 that are sandwiched between the column 20 and the upper outer wall reinforcing member 50 or the lower outer wall reinforcing member 52 in a plan view. The width dimension of each of the second extended side portions 78 and 96 is narrower than the width dimension of the other portions. Therefore, even when the fireproof coating 21 is wound around the pillar 20, the amount of interference between the fireproof coating 21 and the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 can be reduced. This facilitates construction.

  Further, since the plate thicknesses of the upper beam fixing member 54 and the lower beam fixing member 56 are made larger than the plate thicknesses of the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52, the upper outer wall reinforcing member 50 and the lower outer wall are formed. Attachment rigidity of the reinforcing member 52 to the ceiling beam and the floor beam 22 can be further improved.

  Furthermore, since the upper outer wall reinforcing member 50 and the lower outer wall reinforcing member 52 are joined via the spacer 68, the thickness of the spacer 68 is adjusted, so that the upper outer wall reinforcing member 50 is formed. The position of the lower outer wall reinforcing member 52 located inside can be adjusted. Therefore, the position of the lower outer wall reinforcing member 52 can be easily adjusted according to the angle of the ALC panel 40 of the tilted balcony wall 36.

  Further, the inner side of the balcony 34 of the balcony waist wall 36 is a siding material 42 that is thinner than the ALC panel 40. That is, the balcony 34 secures fire resistance by being covered with the outer wall 18, the balcony upper wall portion 46, and the balcony lower wall portion 92, so that the inside side of the balcony wall 34 of the balcony 34 is protected. By using the siding material 42 having a thin plate thickness, the inside of the balcony 34 can be widened.

  In addition, in the present embodiment, the curved outer wall portion 28 is formed in an arc shape that is convex toward the outdoor side in the range of 180 ° in a plan view of the building, but the present invention is not limited to this, and other angles such as 90 °. The shape may be an arc shape within the range, or an arc shape that is concave toward the indoor side.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be carried out without departing from the gist thereof. Of course.

10 curved surface outer wall fixing structure 12 building 18 outer wall 20 column 22 floor beam (beam)
34 balconi 36 balconi waist wall 37 corner outer wall 44 outdoor wall part 46 balconi upper wall part 50 upper outer wall reinforcing member 52 lower outer wall reinforcing member 54 upper beam fixing member 56 lower beam fixing member 58 first reinforcing wall part 60 second reinforcing wall Part 62 Third reinforcing wall part 64 Fourth reinforcing wall part 68 Spacer 74 Upper end part 76 First extended side part 78 Second extended side part 86 Upper end part 92 Balconi lower wall part 94 First extended side part 96 Second Extended side 104 Lower end

Claims (7)

The balcony wall provided on the outdoor side of the balcony and formed in an arc shape in plan view of the building,
While being provided on the upper side of the Balconi waist wall, a corner outer wall having an outdoor wall portion continuous with the outer wall provided on the outdoor side surface of the building,
A first reinforcing wall that extends in the vertical direction of the building and is provided on the indoor side of the outdoor wall portion of the corner outer wall, and has an upper end fixed to the skeleton of the building and supporting the outdoor wall portion from the indoor side. An upper outer wall reinforcing member having a portion,
It is extended in the vertical direction of the building and is provided at a position corresponding to the waist wall of the balcony, the lower end is fixed to the body of the building, and the upper end is joined to the indoor side of the upper outer wall reinforcing member. A lower outer wall reinforcing member,
A curved outer wall fixing structure having. The upper outer wall reinforcing member has an L-shaped cross section orthogonal to the longitudinal direction by the second reinforcing wall portion extending from the end on the balcony side of the first reinforcing wall portion to the indoor side. ,
The lower outer wall reinforcing member includes a third reinforcing wall portion joined to the indoor side of the first reinforcing wall portion and a fourth reinforcing wall portion joined to the indoor side of the second reinforcing wall portion in the longitudinal direction. The cross-sectional shape orthogonal to is formed in an L shape,
The curved surface outer wall fixing structure according to claim 1. The second reinforcing wall portion of the upper outer wall reinforcing member includes a balcony upper wall portion that is integrally provided with the outdoor wall portion of the corner outer wall and that is continuously provided with an outer wall provided inside the balcony. Support from
The fourth reinforcing wall portion of the lower outer wall reinforcing member supports a balcony lower part wall portion provided between the balcony waist wall and the outer wall provided inside the balcony from the indoor side.
The curved outer wall fixing structure according to claim 2. An upper end portion of the upper outer wall reinforcing member is formed in a plate shape having a vertical direction in a building as a thickness direction, and an end surface is joined to an inner side surface of the first reinforcing wall portion and an inner side surface of the second reinforcing wall portion. It is fixed to the beam via the upper beam fixing member,
A lower end portion of the lower outer wall reinforcing member is formed in a plate shape having a vertical direction in the building as a thickness direction, and an upper side surface is formed on a lower end surface of the third reinforcing wall portion and a lower end surface of the fourth reinforcing wall portion. It is fixed to the beam via the joined lower beam fixing member,
The curved outer wall fixing structure according to claim 2 or 3. The upper beam fixing member and the lower beam fixing member are fixed around the portion of the beam to which the column is attached, and the column and the upper outer wall reinforcing member or the lower outer wall when viewed in a direction perpendicular to the plane. The width dimension of each part sandwiched between the reinforcing member is narrower than the width dimension of the other part,
The curved surface outer wall fixing structure according to claim 4. The plate thickness of the upper beam fixing member and the lower beam fixing member is thicker than the plate thickness of the upper outer wall reinforcing member and the lower outer wall reinforcing member,
The curved outer wall fixing structure according to claim 4 or 5. The upper outer wall reinforcing member and the lower outer wall reinforcing member are joined via a spacer,
The curved outer wall fixing structure according to any one of claims 1 to 6.