Inner wall support member for a building, building, and construction method for a building

Abstract

The present invention provides an inner wall support member for a building that allows the inner wall member to be suitably attached to a horizontal structural member. [Solution] An inner wall support member 20, provided on a horizontal member 4 of a building 1 and supporting an inner wall member 11, comprises a first member 30 extending downward from the horizontal member 4 and a second member 60 extending in the longitudinal direction A1 of the horizontal member 4. The second member 60 is arranged to span the first member 30. The first member 30 has a first member body 31, a first portion 41 fixed to the horizontal member 4, and a second portion 51 located below the first portion 41 and supporting the second member 60.

Description

Technical Field

[0004]

[0001] The present disclosure relates to an inner wall support member for a building, a building, and a construction method for a building.

Background Art

[0002] Mounting brackets for attaching an inner wall member of an outer wall to a horizontal member of a building are known. For example, in Patent Document 1, a lower bracket is attached to a frame at the upper end of a shear wall panel, and an upper bracket is attached to the lower end of a floor beam so as to correspond to the lower bracket.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a fireproof coating material is sprayed on a horizontal member, the horizontal member is covered with the fireproof coating material. As a result, it may be difficult to attach a bracket for attaching an inner wall member to the horizontal member.

Means for Solving the Problems

[0005] (1) An inner wall support member for a building that solves the above problems is an inner wall support member provided on a horizontal member of a building to support an inner wall member of an outer wall, and includes a first member extending downward from the horizontal member and a second member extending in the longitudinal direction of the horizontal member. The second member is disposed so as to span the first member, and the first member has a first member body, a first portion fixed to the horizontal member, and a second portion located below the first portion and supporting the second member.

[0006] According to the above configuration, since the first member supports the second member below the horizontal member, when a fire-resistant coating is sprayed onto the horizontal member, the second member is less likely to be covered by the fire-resistant coating. Therefore, an inner wall member can be attached to the second member, and the inner wall member can be suitably attached to the horizontal member.

[0007] (2) In the inner wall support member described in (1) above, the second portion of the first member has a support portion that supports the second member. With the above configuration, the first member can suitably support the second member with the support portion.

[0008] (3) In the inner wall support member of (2) above, the support portion has a first portion extending from the main body of the first member of the first member and a second portion extending intersecting from the first portion, the second portion supporting the second member from below. With the above configuration, the support portion can suitably support the second member from below.

[0009] (4) In the inner wall support member of (3) above, the support portion further has a third portion extending from the upper end of the second portion in the longitudinal direction of the horizontal member, and the third portion is in contact with the second member. With the above configuration, since the third portion extends along the second member, the support portion can suitably support the second member from below.

[0010] (5) In the inner wall support member of (4) above, the second member has a first extension portion that extends in the longitudinal direction of the horizontal member and contacts the third portion, and a second extension portion that extends in the longitudinal direction of the horizontal member and extends upward from the first extension portion. With the above configuration, since the second member has a first extension portion and a second extension portion, the strength of the second member against vertical loads can be improved.

[0011] (6) In any one of the inner wall support members described in (3) to (5) above, the width of the first portion of the support is smaller than the width of the first member body in a horizontal direction perpendicular to the longitudinal direction of the horizontal member and the extension direction of the first member. With the above configuration, since the width of the first portion of the support is smaller than the width of the first member body, the second member can be positioned such that a part of the second member overlaps with the first member body in the extension direction when viewed from the longitudinal direction of the horizontal member.

[0012] (7) In any one of the inner wall support members described in (1) to (6) above, the first portion of the first member has a recess into which the flange of the horizontal member is inserted. With this configuration, the first member can be firmly fixed to the horizontal member by the recess.

[0013] (8) In any one of the inner wall support members described in (1) to (7) above, the first member comprises an upper member including the first portion and a lower member including the first member body and the second portion, and the lower member is connected to the upper member by a connecting member. With the above configuration, the upper member and the lower member can be transported separately.

[0014] (9) In the inner wall support member described in (8) above, the upper member has a first plate portion having a first recess as the recess, a second plate portion having a second recess as the recess, and a plate portion connecting portion that connects the first plate portion and the second plate portion. With the above configuration, the upper member can firmly fix the first part of the first member to the horizontal member by the first plate portion and the second plate portion.

[0015] (10) In any one of the inner wall support members described in (1) to (9) above, the inner wall support member further comprises a mounting bracket to which the inner wall member is attached, the mounting bracket having a first mounting portion to which the inner wall member is attached and a second mounting portion to which it is fixed to the second member. With the above configuration, the mounting bracket can suitably attach the inner wall member to the second member.

[0016] (11) A building that solves the above problem is a building comprising any one of the inner wall support members described in (1) to (10) above, an inner wall member that constitutes a part of the outer wall and is supported by the inner wall support member, a horizontal member on which the inner wall support member is provided, and a fire-resistant coating material sprayed to cover the horizontal member, wherein the fire-resistant coating material is sprayed onto the horizontal member such that at least a part of the second member and the second portion of the first member of the inner wall support member are exposed.

[0017] According to the above configuration, at least a portion of the second member and the second portion of the first member are not easily covered by the fire-resistant coating material, so an inner wall member can be attached to the second member. Therefore, the inner wall member can be suitably attached to the horizontal member.

[0018] (12) A construction method for a building that solves the above problems is a construction method for a building that includes one of the inner wall support members described in (1) to (10) above, comprising: a support member attachment step of attaching the inner wall support member to the horizontal member of the building frame; a spraying step of spraying a fire-resistant coating material onto the horizontal member; and an inner wall attachment step of attaching the inner wall member to the inner wall support member. With the above configuration, the inner wall member can be suitably attached to the horizontal member when a fire-resistant coating material is sprayed onto the horizontal member. [Effects of the Invention]

[0019] The inner wall support member of this disclosure allows the inner wall member to be suitably attached to a horizontal member. [Brief explanation of the drawing]

[0020] [Figure 1] This is a cross-sectional view showing the upper part of the exterior wall of a building, including the inner wall support member of the embodiment. [Figure 2] This is a rear view of the first location of the exterior wall shown in Figure 1. [Figure 3] This is a rear view of the second location of the exterior wall shown in Figure 1. [Figure 4]In the second member of the inner wall support member of FIG. 1, it is a perspective view showing an example of attaching the inner wall member with a mounting bracket. [Figure 5] It is a plan view of the first member of the inner wall support member of FIG. 1. [Figure 6] It is a side view of the upper member of the first member of FIG. 5 as viewed from the first plate portion side. [Figure 7] It is a side view of the upper member of the first member of FIG. 5 as viewed from the second plate portion side. [Figure 8] It is a rear view of the upper member of the first member of FIG. 5. [Figure 9] It is a plan view of the upper member of the first member of FIG. 5. [Figure 10] It is a side view of the lower member of the first member of FIG. 5. [Figure 11] It is a rear view of the lower member of the first member of FIG. 5. [Figure 12] It is a plan view of the lower member of the first member of FIG. 5. [Figure 13] It is a perspective view of the second member of the inner wall support member of FIG. 1. [Figure 14] It is a plan view of the connecting plate of the inner wall support member of FIG. 3.

Mode for Carrying Out the Invention

[0021] <Embodiment> Referring to FIGS. 1 to 14, the inner wall support member 20 of the building 1, the building 1, and the construction method of the building 1 in the embodiment will be described. The building 1 is, for example, an apartment house, a single-family house, a commercial facility, etc. In this embodiment, the building 1 will be described as an apartment house.

[0022] As shown in Figures 1 to 3, the building 1 comprises an inner wall member 11, an inner wall support member 20, a horizontal member 4, and a fire-resistant covering material 5. In this specification, the direction in which the horizontal member 4 extends is defined as the longitudinal direction A1 of the horizontal member 4, the direction in which the first member 30 of the inner wall support member 20 extends is defined as the extension direction A2, and the direction perpendicular to the longitudinal direction A1 of the horizontal member 4 and the extension direction A2 of the first member 30 is defined as the horizontal direction A3. The extension direction A2 corresponds to the vertical direction of the building 1. Hereafter, when the longitudinal direction A1, extension direction A2, and horizontal direction A3 are mentioned, they refer to the directions defined by the above definitions. Details of the first member 30 of the inner wall support member 20 will be described later.

[0023] The horizontal members 4 include beams and girders. The beams and girders are part of the frame of the building 1. The beams and girders extend substantially horizontally. The girders are perpendicular to the beams. The horizontal members 4 do not include sills. In this embodiment, the horizontal members 4 are made of H-shaped steel. The horizontal members 4 include a web 4A, a first flange 4B provided at one end of the web 4A in the extension direction A2, and a second flange 4C provided at the other end of the web 4A. The first flange 4B is positioned above the second flange 4C.

[0024] Building 1 comprises an exterior wall 10. The exterior wall 10 separates the interior from the exterior. The exterior wall 10 includes an interior wall member 11 and an exterior wall member 12. The interior wall member 11 and the exterior wall member 12 constitute a part of the exterior wall 10. The exterior wall member 12 includes an exterior wall panel 12A. The exterior wall panel 12A includes, for example, a siding board. The exterior wall panel 12A is connected to the second flange 4C of the horizontal member 4 by a panel connecting portion 12B. In the horizontal direction A3, the panel connecting portion 12B is connected to the end of the second flange 4C opposite to the end to which the interior wall support member 20 is attached.

[0025] The inner wall member 11 is located on the indoor side of the outer wall member 12. The inner wall member 11 includes a frame member 11A for attaching interior panels such as structural plywood. The inner wall member 11 may also include interior panels. An exterior wall insulation material 11B is provided between the inner wall member 11 and the outer exterior wall member. The exterior wall insulation material 11B is attached to the frame member 11A. The frame member 11A is delivered to the construction site with the exterior wall insulation material 11B attached. Although not shown in the figure, a ceiling base supporting the end of the ceiling material 3 is attached to the inner wall member 11. The ceiling material 3 separates the space above the ceiling 2 from the interior space. In this embodiment, the space above the ceiling 2 is the space above the ceiling material 3. A ceiling insulation material 3A is provided above the ceiling material 3. The ceiling insulation material 3A may be omitted.

[0026] The fire-resistant coating 5 is sprayed to cover the horizontal members 4. The fire-resistant coating 5 is used to enhance the fire resistance of the building 1. The fire-resistant coating 5 includes at least one of a fire-resistant paint and a ceramic fire-resistant coating. The fire-resistant coating 5 may also cover a portion of the exterior wall panel 12A and the panel connecting portion 12B. The fire-resistant coating 5 is sprayed onto the horizontal members 4 so that at least a portion of the second member 60 and the second portion 51 of the first member 30 of the inner wall support member 20 are exposed. The fire-resistant coating 5 covers the first portion 41 of the first member 30 of the inner wall support member 20 together with the horizontal members 4. The second portion 51 of the first member 30 and the second member 60 of the inner wall support member 20 are not covered by the fire-resistant coating 5.

[0027] <Inner wall support member> The inner wall support member 20 will be described with reference to Figures 1 to 13. In Figure 1, the mounting bracket 70 is not shown. As shown in Figures 1 to 4, the inner wall support member 20 is provided on the horizontal member 4 of the building 1. The inner wall support member 20 supports the inner wall member 11 of the outer wall 10. The inner wall support member 20 comprises a first member 30 extending downward from the horizontal member 4 and a second member 60 extending in the longitudinal direction A1.

[0028] The first member 30 is attached to the horizontal member 4. The second member 60 is provided on the side of the first member 30 opposite to the horizontal member 4. Multiple first members 30 are provided on the horizontal member 4. The second member 60 is arranged so as to span across the first members 30. At least one first member 30 is fixed to the second member 60.

[0029] The first member 30 has a first member body 31, a first portion 41, and a second portion 51. The first portion 41 is fixed to the horizontal member 4. The first portion 41 has a recess 41A into which the second flange 4C of the horizontal member 4 is inserted. The first portion 41 is fixed to the horizontal member 4 by the insertion of the second flange 4C into the recess 41A. The second portion 51 supports the second member 60. The second portion 51 is located below the first portion 41. The second portion 51 is the part below the first member body 31.

[0030] The inner wall support member 20 further comprises a mounting bracket 70. The inner wall member 11 is attached to the mounting bracket 70. The inner wall member 11 is attached to the second member 60 of the inner wall support member 20 by the mounting bracket 70. At least one mounting bracket 70 is provided on the upper surface 11C of the inner wall member 11. The number of mounting brackets 70 is not particularly limited, as long as they can support the inner wall member 11.

[0031] The mounting bracket 70 has a first mounting portion 71 to which the inner wall member 11 is attached, and a second mounting portion 72 that is fixed to the second member 60. The first mounting portion 71 and the second mounting portion 72 are integrally formed. The first mounting portion 71 is fixed to the frame member 11A of the inner wall member 11 by screws or the like. A part of the first mounting portion 71 faces the upper surface 11C of the inner wall member 11. The second mounting portion 72 has a mounting recess 72A. The first extension portion 61 of the second member 60 is inserted into the mounting recess 72A. The mounting recess 72A is inserted into the first extension portion 61 by a hammer or the like.

[0032] As shown in Figures 1 to 5, the first member 30 has an upper member 40 and a lower member 50. The lower member 50 is connected to the upper member 40 by a connecting member 21. The connecting member 21 includes, for example, a rivet. The connecting member 21 may also include a set of bolts and nuts.

[0033] As shown in Figure 1 and Figures 5 to 9, the upper member 40 includes a first portion 41. The upper member 40 has a first plate portion 42, a second plate portion 43, and a plate portion connecting portion 44. The first plate portion 42 extends along the extension direction A2. The second plate portion 43 extends along the extension direction A2.

[0034] The upper end 42A of the first plate portion 42 is provided with an extension portion 42E of the first plate portion that extends along the longitudinal direction A1 toward the second plate portion 43. The first plate portion 42 has a first end portion 42B and a second end portion 42C in the horizontal direction A3. The first plate portion 42 has a first recess 42D as a recess 41A. The first recess 42D is provided at the second end portion 42C of the first plate portion 42. The first plate portion 42 has a first through hole 42F to which a connecting member 21 is attached. In this embodiment, two first through holes 42F are provided in the first plate portion 42.

[0035] The upper end 43A of the second plate portion 43 is provided with a second plate portion extension 43E that extends toward the first plate portion 42 along the longitudinal direction A1. The second plate portion 43 has a first end 43B and a second end 43C in the horizontal direction A3. The second plate portion 43 has a second recess 43D as a recess 41A. The second recess 43D is provided at the second end 43C.

[0036] The plate section connecting portion 44 connects the first plate section 42 and the second plate section 43. Specifically, the plate section connecting portion 44 connects the first end portion 42B of the first plate section 42 and the first end portion 43B of the second plate section 43.

[0037] The recess 41A is provided with a projection 41B that protrudes toward the extension direction A2. Specifically, the projection 41B provided in the first recess 42D, which is the recess 41A, protrudes more toward the extension direction A2 as it moves from the first end 42B to the second end 42C. The projection 41B provided in the second recess 43D, which is the recess 41A, protrudes more toward the extension direction A2 as it moves from the first end 43B to the second end 43C.

[0038] As shown in Figures 1, 5, and 10 to 12, the lower member 50 includes a first member body 31 and a second portion 51. The first member body 31 is flat. A second through hole 31E is provided at the upper end 31A of the first member body 31, to which a connecting member 21 is attached. In this embodiment, two second through holes 31E are provided in the first member body 31. The upper end 31A of the first member body 31 is positioned in the longitudinal direction A1 between the first plate portion 42 and the second plate portion 43 of the upper member 40 (see Figure 1). The lower member 50 is positioned such that the second through hole 31E corresponds to the first through hole 42F of the first plate portion 42 shown in Figure 6, and is connected by the connecting member 21. The first member body 31 has a first end portion 31C and a second end portion 31D in the horizontal direction A3.

[0039] The second portion 51 of the first member 30 has a support portion 52 that supports the second member 60. The support portion 52 has a first portion 53 and a second portion 54. The first portion 53 extends from the first member body 31 of the first member 30. The first portion 53 extends downward from the lower end 31B of the first member body 31 of the first member 30. In the horizontal direction A3, the first portion 53 has a first end portion 53A and a second end portion 53B. The first end portion 31C of the first member body 31 is continuous with the first end portion 53A of the first portion 53 in the extending direction A2. The distance from the first end portion 53A to the second end portion 53B of the first portion 53 is shorter in the horizontal direction A3 than the distance from the first end portion 31C to the second end portion 31D of the first member body 31. In the horizontal direction A3, the first member body 31 has a width X1. In the horizontal direction A3, the first portion 53 has a width X2. The width X2 of the first portion 53 of the support portion 52 is smaller than the width X1 of the first member body 31.

[0040] As shown in Figure 10, the second portion 54 extends intersecting the first portion 53. The second portion 54 extends from the lower end 53C in the extension direction A2 of the first portion 53 toward the outer wall member 12. The second portion 54 supports the second member 60 from below.

[0041] As shown in Figure 1 and Figures 10 to 12, the support portion 52 further has a third portion 55 extending in the longitudinal direction A1 from the upper end 54A of the second portion 54. In plan view, the third portion 55 is flat. The third portion 55 is in contact with the second member 60. Together with the second portion 54, the third portion 55 supports the second member 60. The third portion 55 is provided with a first elongated hole 55A. The first elongated hole 55A extends in the longitudinal direction A1. A bolt 22A of the fastening member 22 that fastens the second member 60 and the first member 30 is inserted into the first elongated hole 55A.

[0042] As shown in Figures 1, 2, and 13, the second member 60 has a first extension 61 and a second extension 62. The second member 60 extends substantially parallel to the horizontal member 4. The first extension 61 extends in the longitudinal direction A1. The first extension 61 contacts the third portion 55 of the first member 30. The second extension 62 extends in the longitudinal direction A1. The second extension 62 extends upward from the first extension 61.

[0043] The first extension 61 has a first end 61A and a second end 61B in the horizontal direction A3. The second extension 62 extends upward from the second end 61B of the first extension 61. The second member 60 has a first end 60A and a second end 60B in the longitudinal direction A1. When the first member 30 supports the second member 60 between the first end 60A and the second end 60B of the second member 60, the first end 61A of the first extension 61 faces the first portion 53 of the lower member 50.

[0044] The second member 60 and the first member 30 are fastened together by a fastening member 22. The fastening member 22 includes a bolt 22A and a nut 22B. The second member 60 has fastening holes 63. The fastening holes 63 are provided in the first extension portion 61 of the second member 60. The number of fastening holes 63 is not particularly limited, as long as the fastening holes 63 are provided in the portion that is fastened to the first member 30.

[0045] As shown in Figures 3, 13, and 14, the inner wall support member 20 includes a connecting plate 23. The connecting plate 23 has a second elongated hole 23A. The connecting plate 23 is provided with two second elongated holes 23A. The second elongated holes 23A extend in the longitudinal direction A1. Because the second elongated holes 23A extend in the longitudinal direction A1, it is easy to align the positions of the fastening holes 63 of the two second members 60 with the second elongated holes 23A. The connecting plate 23 is provided on the upper surface 61C of the first extended portion 61 of the second member 60.

[0046] The connecting plate 23 is used to connect the two second members 60 in the longitudinal direction A1. One second member 60 is connected to the first member 30 at its first end 60A. Furthermore, one second member 60 is connected to the second end 60B of the other second member 60 via the connecting plate 23 at its first end 60A (see Figure 3).

[0047] <Construction method> Referring to Figures 1 to 14, a construction method for connecting the inner wall member 11 to the horizontal member 4 via the inner wall support member 20 will be described. The construction method comprises a support member installation step, a spraying step, and an inner wall installation step. The support member installation step, the spraying step, and the inner wall installation step are performed by workers.

[0048] In the support member installation process, the inner wall support members 20 are attached to the horizontal members 4 of the building frame 1. Specifically, multiple first members 30 are attached to the horizontal members 4 at intervals in the longitudinal direction A1. Multiple first members 30 are arranged on the horizontal members 4 so that the second flange 4C is inserted into the recess 41A of the first member 30. When the second flange 4C is inserted into the recess 41A, the protruding portion 41B of the recess 41A is crushed, causing the recess 41A to be pressed against the second flange 4C. This firmly fixes the first member 30 to the second flange 4C. The upper member 40 and the lower member 50 are connected in advance.

[0049] In the support member installation process, the upper member 40 is attached to the horizontal member 4, and then the second member 60 is attached to the first member 30. The case in which multiple first members 30 are attached between the first end 60A and the second end 60B of the second member 60 will be described (see Figure 2). First, the fastening holes 63 of the second member 60 are aligned with the first elongated holes 55A of the first member 30. At this time, since the first elongated holes 55A extend in the longitudinal direction A1, it is easy to align the fastening holes 63. After aligning each hole, the bolts 22A of the fastening member 22 are inserted from below into the fastening holes 63 and the first elongated holes 55A of the first member 30. With the bolts 22A inserted into the fastening holes 63 and the first elongated holes 55A, the nuts 22B are attached from above, thereby fastening the second member 60 to the first member 30.

[0050] In the support member installation process, the case in which the second member 60 is attached to the first member 30 using a connecting plate 23 at the connection portion of the two second members 60 will be described (see Figure 3). First, one of the second elongated holes 23A of the connecting plate 23 is aligned with the fastening hole 63 of one of the second members 60 and the first elongated hole 55A of the first member 30. After aligning the holes, the bolt 22A of the fastening member 22 is inserted from below into one of the second elongated holes 23A of the connecting plate 23, the fastening hole 63 of one of the second members 60 and the first elongated hole 55A of the first member 30. With the bolt 22A inserted into the second elongated hole 23A, the fastening hole 63 and the first elongated hole 55A, the nut 22B is attached from above, thereby fastening the second member 60 to the first member 30.

[0051] After fastening one of the second members 60 to the first member 30, the other of the second elongated holes 23A in the connecting plate 23 is aligned with the fastening hole 63 of the other second member 60. After aligning the holes, the bolt 22A of the fastening member 22 is inserted from below into the other of the second elongated holes 23A in the connecting plate 23 and the fastening hole 63 of the other second member 60. With the bolt 22A inserted into the second elongated holes 23A and the fastening hole 63, the nut 22B is attached from above, thereby fastening the other second member 60 to the connecting plate 23.

[0052] In the spraying process, the fire-resistant coating material 5 is sprayed onto the horizontal member 4. Specifically, in the spraying process, the fire-resistant coating material 5 is sprayed so that the horizontal member 4 and the first portion 41 of the first member 30 of the inner wall support member 20 are covered. In the spraying process, the fire-resistant coating material 5 may also be sprayed onto a part of the inner wall support member 20. In the spraying process, the fire-resistant coating material 5 is sprayed onto the horizontal member 4 so that at least a part of the second member 60 and the second portion 51 of the first member 30 of the inner wall support member 20 are exposed.

[0053] In the inner wall installation process, the inner wall member 11 is attached to the inner wall support member 20. In the inner wall installation process, the mounting bracket 70 is attached to the inner wall member 11, and then the inner wall member 11 is attached to the second member 60 via the mounting bracket 70.

[0054] <Operation of the Embodiment> In this embodiment, the first member 30 extends below the horizontal member 4 and supports the second member 60. When spraying the fire-resistant coating 5 onto the horizontal member 4, the second member 60 is supported by the first member 30 below the horizontal member 4, making it difficult for the fire-resistant coating 5 to be sprayed onto the second member 60. Therefore, the second member 60 is not easily covered by the fire-resistant coating 5.

[0055] <Effects of the Embodiment> The effects of the embodiment will be explained. (1) The inner wall support member 20 is provided on the horizontal member 4 of the building 1 and supports the inner wall member 11 of the outer wall 10. The inner wall support member 20 comprises a first member 30 extending downward from the horizontal member 4 and a second member 60 extending in the longitudinal direction A1 of the horizontal member 4. The second member 60 is arranged to span the first member 30. The first member 30 has a first member body 31, a first portion 41 fixed to the horizontal member 4, and a second portion 51 located below the first portion 41 and supporting the second member 60.

[0056] According to the above configuration, since the first member 30 supports the second member 60 below the horizontal member 4, when the fire-resistant coating material 5 is sprayed onto the horizontal member 4, the second member 60 is less likely to be covered by the fire-resistant coating material 5. Therefore, the inner wall member 11 can be attached to the second member 60, and the inner wall member 11 can be suitably attached to the horizontal member 4.

[0057] (2) The second portion 51 of the first member 30 has a support portion 52 that supports the second member 60. With the above configuration, the first member 30 can suitably support the second member 60 with the support portion 52.

[0058] (3) The support portion 52 has a first portion 53 extending from the first member body 31 of the first member 30 and a second portion 54 extending intersectingly from the first portion 53, and the second portion 54 supports the second member 60 from below. With the above configuration, the support portion 52 can suitably support the second member 60 from below.

[0059] (4) The support portion 52 further has a third portion 55 that extends from the upper end 54A of the second portion 54 in the longitudinal direction A1 of the horizontal member 4. The third portion 55 is in contact with the second member 60. With the above configuration, since the third portion 55 extends along the second member 60, the support portion 52 can suitably support the second member 60 from below.

[0060] (5) The second member 60 has a first extended portion 61 that extends in the longitudinal direction A1 of the horizontal member 4 and contacts the third portion 55, and a second extended portion 62 that extends in the longitudinal direction A1 of the horizontal member 4 and extends upward from the first extended portion 61. With the above configuration, since the second member 60 has the first extended portion 61 and the second extended portion 62, the strength of the second member 60 against vertical loads can be improved.

[0061] (6) In the horizontal direction A3 perpendicular to the longitudinal direction A1 of the horizontal member 4 and the extension direction A2 of the first member 30, the width X2 of the first portion 53 of the support portion 52 is smaller than the width X1 of the first member body 31. With the above configuration, since the width X2 of the first portion 53 of the support portion 52 is smaller than the width X1 of the first member body 31, the second member 60 can be positioned such that a part of the second member 60 overlaps with the first member body 31 in the extension direction A2 when viewed from the longitudinal direction A1.

[0062] (7) The first portion 41 of the first member 30 has a recess 41A into which the flange of the horizontal member 4 is inserted. With the above configuration, the first member 30 can be firmly fixed to the horizontal member 4 by the recess 41A.

[0063] (8) The first member 30 has an upper member 40 including a first portion 41 and a lower member 50 including the first member body 31 and a second portion 51. The lower member 50 is connected to the upper member 40 by a connecting member 21. With the above configuration, the upper member 40 and the lower member 50 can be transported separately.

[0064] (9) The upper member 40 has a first plate portion 42 having a first recess 42D as a recess, a second plate portion 43 having a second recess 43D as a recess, and a plate portion connecting portion 44 that connects the first plate portion 42 and the second plate portion 43. With the above configuration, the upper member 40 can firmly fix the first portion 41 of the first member 30 to the horizontal member 4 by the first plate portion 42 and the second plate portion 43.

[0065] (10) The inner wall support member 20 further comprises a mounting bracket 70 to which the inner wall member 11 is attached. The mounting bracket 70 has a first mounting portion 71 to which the inner wall member 11 is attached, and a second mounting portion 72 that is fixed to the second member 60. With the above configuration, the mounting bracket 70 can suitably attach the inner wall member 11 to the second member 60.

[0066] (11) The building 1 comprises an inner wall support member 20, an inner wall member 11 that constitutes part of the outer wall 10 and is supported by the inner wall support member 20, a horizontal member 4 on which the inner wall support member 20 is provided, and a fire-resistant coating material 5 that is sprayed to cover the horizontal member 4. The fire-resistant coating material 5 is sprayed onto the horizontal member 4 such that at least a part of the second member 60 and the second portion 51 of the first member 30 of the inner wall support member 20 are exposed.

[0067] According to the above configuration, at least a portion of the second member 60 and the second portion 51 of the first member 30 are not easily covered by the fire-resistant covering material 5, so the inner wall member 11 can be attached to the second member 60. Therefore, the inner wall member 11 can be suitably attached to the horizontal member 4.

[0068] (12) A construction method for a building 1 that solves the above problems comprises a support member attachment step of attaching an inner wall support member 20 to a horizontal member 4 of the building frame 1, a spraying step of spraying a fire-resistant coating material 5 onto a part of the inner wall support member 20 and the horizontal member 4, and an inner wall attachment step of attaching an inner wall member 11 to the inner wall support member 20. With the above configuration, when spraying the fire-resistant coating material 5 onto the horizontal member 4, the inner wall member 11 can be suitably attached to the horizontal member 4.

[0069] <Example of changes> The embodiments are examples of possible configurations for the inner wall support member 20 of building 1, building 1, and construction method of building 1. The embodiments are not intended to limit the possible configurations for the inner wall support member 20 of building 1, building 1, and construction method of building 1. The inner wall support member 20 of building 1, building 1, and construction method of building 1 may take configurations different from those exemplified in the embodiments. Configurations different from those exemplified in the embodiments include, for example, configurations in which a part of the configuration of the embodiments is replaced, modified, or omitted, or configurations in which a new configuration is added to the embodiments. Examples of modifications to the embodiments are shown below.

[0070] The length of the first member body 31 in the extension direction A2 is not particularly limited. The length of the first member body 31 in the extension direction A2 is determined, for example, by the positional relationship between the horizontal member 4 and the inner wall member 11.

[0071] The second portion 54 of the support portion 52 may extend in the horizontal direction A3 so as to move away from the outer wall member 12.

[0072] • If it is not necessary to connect the two second members 60, the connecting plate 23 may be omitted.

[0073] • In the support member installation process, the lower member 50 may be attached to the upper member 40 after the upper member 40 has been attached to the second flange 4C of the horizontal member 4.

[0074] • In the inner wall installation process, the inner wall member 11 may be attached to the mounting bracket 70 after the mounting bracket 70 has been attached to the second member 60.

[0075] The ordinal numbers such as "first, second, and third" used in this specification are simply used to distinguish between multiple members having the same name and do not have any special meaning.

[0076] This specification discloses the following technologies: [Note 1] The inner wall support member of the building described in Appendix 1 is an inner wall support member provided on a horizontal member of the building to support an inner wall member of the outer wall, comprising a first member extending downward from the horizontal member and a second member extending in the longitudinal direction of the horizontal member, wherein the second member is arranged to span the first member, and the first member has a first member body, a first portion fixed to the horizontal member, and a second portion located below the first portion and supporting the second member.

[0077] [Note 2] In the inner wall support member described in Appendix 1, the second portion of the first member has a support portion that supports the second member.

[0078] [Note 3] In the inner wall support member described in Appendix 2, the support portion has a first portion extending from the main body of the first member of the first member and a second portion extending intersecting from the first portion, the second portion supporting the second member from below.

[0079] [Note 4] In the inner wall support member described in Appendix 3, the support portion further has a third portion extending from the upper end of the second portion in the longitudinal direction of the horizontal member, and the third portion is in contact with the second member.

[0080] [Note 5] In the inner wall support member described in Appendix 4, the second member has a first extension portion that extends in the longitudinal direction of the horizontal member and contacts the third portion, and a second extension portion that extends in the longitudinal direction of the horizontal member and extends upward from the first extension portion.

[0081] [Note 6] In the inner wall support member described in Appendix 3, the width of the first portion of the support is smaller than the width of the main body of the first member in the horizontal direction perpendicular to the longitudinal direction of the horizontal member and the extension direction of the first member.

[0082] [Note 7] In the inner wall support member described in Appendix 1, the first portion of the first member has a recess into which the flange of the horizontal member is inserted.

[0083] [Note 8] In the inner wall support member described in Appendix 7, the first member comprises an upper member including the first portion and a lower member including the first member body and the second portion, and the lower member is connected to the upper member by a connecting member.

[0084] [Note 9] In the inner wall support member described in Appendix 8, the upper member has a first plate portion having a first recess as the recess, a second plate portion having a second recess as the recess, and a plate portion connecting portion that connects the first plate portion and the second plate portion.

[0085] [Note 10] The inner wall support member described in Appendix 1 further comprises a mounting bracket to which the inner wall member is attached, the mounting bracket having a first mounting portion to which the inner wall member is attached and a second mounting portion to which the second member is fixed.

[0086] [Note 11] The building described in Appendix 11 is a building comprising an inner wall support member described in any one of Appendix 1 to 10, an inner wall member that constitutes a part of the outer wall and is supported by the inner wall support member, a horizontal member on which the inner wall support member is provided, and a fire-resistant coating material sprayed to cover the horizontal member, wherein the fire-resistant coating material is sprayed onto the horizontal member such that at least a part of the second member and the second portion of the first member of the inner wall support member are exposed.

[0087] [Note 12] The construction method of Appendix 12 is a construction method for a building equipped with an inner wall support member as described in any one of Appendix 1 to Appendix 10, comprising: a support member attachment step of attaching the inner wall support member to the horizontal member of the building frame; a spraying step of spraying a fire-resistant coating material onto a part of the inner wall support member and the horizontal member; and an inner wall attachment step of attaching the inner wall member to the inner wall support member. [Explanation of Symbols]

[0088] 1...Building, 4...Horizontal member, 5...Fireproof covering material, 10...Exterior wall, 11...Interior wall member, 20...Interior wall support member, 21...Connecting member, 30...First member, 31...First member body, 40...Upper member, 41...First part, 41A...Recess, 42...First plate part, 42D...First recess, 43...Second plate part, 43D...Second recess, 44...Plate connecting part, 50...Lower member, 51...Second part, 52...Support part, 53...First section, 54...Second section, 54A...Upper end, 55...Third section, 60...Second member, 61...First extension part, 62...Second extension part, 70...Mounting bracket, 71...First mounting part, 72...Second mounting part.

Claims

1. An inner wall support member provided on a horizontal structural member of a building to support an inner wall member of an exterior wall, A first member extending downward from the aforementioned horizontal member, The horizontal member comprises a second member extending in the longitudinal direction, The second member is arranged so as to span across the first member, The first member comprises a first member body, a first portion fixed to the horizontal member, and a second portion located below the first portion and supporting the second member. Inner wall support member.

2. The second portion of the first member has a support portion that supports the second member. The inner wall support member according to claim 1.

3. The aforementioned support portion is A first portion of the first member extending from the main body of the first member, It has a second portion that extends intersecting the first portion, The second part supports the second member from below. The inner wall support member according to claim 2.

4. The support portion further has a third portion extending from the upper end of the second portion in the longitudinal direction of the horizontal member, The third portion contacts the second member, The inner wall support member according to claim 3.

5. The second member is, A first extended portion extending in the longitudinal direction of the horizontal member and in contact with the third portion, The horizontal member has a second extension that extends in the longitudinal direction and extends upward from the first extension, The inner wall support member according to claim 4.

6. In a horizontal direction perpendicular to the longitudinal direction of the horizontal member and the extension direction of the first member, the width of the first portion of the support is smaller than the width of the first member body. The inner wall support member according to claim 3.

7. The first portion of the first member has a recess into which the flange of the horizontal member is inserted. The inner wall support member according to claim 1.

8. The first member is, The upper member including the first portion, The lower member comprises the first member body and the second portion, The lower member is connected to the upper member by a connecting member. The inner wall support member according to claim 7.

9. The aforementioned upper member is, A first plate portion having the first recess as the recess, A second plate portion having a second recess as the aforementioned recess, It has a plate connecting portion that connects the first plate portion and the second plate portion, The inner wall support member according to claim 8.

10. The mounting bracket to which the aforementioned inner wall member is attached is further provided, The aforementioned mounting bracket is The first mounting portion to which the inner wall member is attached, Having a second mounting portion fixed to the second member, The inner wall support member according to claim 1.

11. It is a building, An inner wall support member according to any one of claims 1 to 10, The inner wall member, which constitutes a part of the outer wall and is supported by the inner wall support member, The horizontal member on which the inner wall support member is provided, The system includes a fire-resistant coating material that is sprayed to cover the aforementioned horizontal member, The fire-resistant coating material is sprayed onto the horizontal member such that at least a portion of the second member and the second portion of the first member of the inner wall support member are exposed. architecture.

12. A method for constructing a building comprising an inner wall support member as described in any one of claims 1 to 10, A support member installation step involves attaching the inner wall support member to the horizontal member of the building frame, A spraying process in which a fire-resistant coating material is sprayed onto the aforementioned horizontal member, The process includes an inner wall mounting step of attaching the inner wall member to the inner wall support member. Construction method.

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