Reinforcing member and building

Abstract

A reinforcing member (60) reinforces inclined members (53) for supporting eaves. The reinforcing member (60) comprises: a base part (61) that is disposed on the upper surface of a framework shaft member (20X); a shaft part (62) that extends downward from the lower surface of the base part (61) and is inserted into a vertical hole (23C) of the framework shaft member (20X); and an arm part (63) that is disposed on the framework shaft member (20X) and supports the inclined members (53). The arm part (63) has an arm plate (64) brought into contact with side surfaces of the inclined members (53). The arm plate (64) extends obliquely downward from the upper surface of the base part (61) such that in a plan view, a leading end portion (64A) of the arm plate (64) is positioned outward of the base part (61) and in a side view, the leading end portion (64A) of the arm plate (64) is positioned downward of the base part (61). The arm plate (64) is provided with first holes (63A) into which first coupling members (65) for coupling the inclined members (53) and the arm plate (64) are inserted.

Description

Reinforcing member and building

[0001] The present disclosure relates to a reinforcing member and a building.

[0002] A joining member for joining an inclined member constituting a roof of a building to a lateral member or a bundle is known (for example, Patent Document 1). The bundle is an element constituting the framework of the roof and is a member extending in the vertical direction. The joining member (in this document, a joining device) described in Patent Document 1 includes an inclined receiving portion for receiving the inclined member and a positioning portion for positioning the inclined member. The positioning portion is provided at each of both ends of the inclined receiving portion.

[0003] Japanese Patent Application Laid-Open No. 10-46733

[0004] The eaves of the roof may be supported by short inclined members. The inclined member is fixed to the lateral member by a cantilever support. Such an inclined member fixed by a cantilever support is fixed to the lateral member near the roof via a reinforcing member in order to ensure the fixing strength of the inclined member. In a conventional reinforcing member, the fixing portion of the reinforcing member is fixed to the side surface of the lateral member. Other lateral members may be connected to the side surface of the lateral member. Since the conventional reinforcing member has a structure in which the fixing portion is arranged on the side surface of the lateral member, the reinforcing member cannot be arranged at a location where another lateral member is connected in the lateral member. That is, the arrangement of the reinforcing member is restricted by the arrangement of other lateral members. As a result of the restriction of the arrangement of the reinforcing member, the arrangement of the inclined member is also restricted. When the arrangement of the inclined member is restricted, the eaves strength may not be sufficiently ensured. Due to such circumstances, in fact, various contrivances have been made in the entire roof structure in order to ensure the strength of the eaves. Thus, in the conventional reinforcing member, the design freedom of the roof support structure is restricted.

[0005] (1) A reinforcing member according to one aspect of the present disclosure is a reinforcing member for reinforcing an inclined member that supports an eaves, comprising: a base portion disposed on the upper surface of a structural shaft member; a shaft portion extending downward from the lower surface of the base portion and inserted through a vertical hole in the structural shaft member; and an arm portion disposed on the structural shaft member to support the inclined member, wherein the arm portion has an arm plate that contacts the side surface of the inclined member, the arm plate extending diagonally downward from the upper surface of the base portion such that in a plan view the tip of the arm plate is located outside the base portion and in a side view the tip of the arm plate is located below the base portion, and the arm plate is provided with a first hole through which a first connecting member that connects the inclined member and the arm plate is inserted.

[0006] Conventional reinforcing members have a fixing portion that is fixed to the side of a horizontal member. However, other horizontal members may be connected to the side of a horizontal member. Therefore, with conventional reinforcing members, the places where the reinforcing member can be placed are limited. In contrast, the reinforcing member with the above configuration has a shaft portion. The shaft portion is inserted through a vertical hole in the structural shaft member. Therefore, other structural shaft members can be connected to the side of the structural shaft member. Accordingly, the reinforcing member with the above configuration can improve the design freedom of the roof support structure.

[0007] (2) In the reinforcing member described in (1) above, the shaft portion has a plurality of second holes through which a second connecting member that connects the structural shaft member and the shaft portion is inserted. With this configuration, the reinforcing member can be firmly fixed to the structural shaft member.

[0008] (3) In the reinforcing member described in (2) above, the pitch of the plurality of second holes is equal to the pitch of the metal pin holes of the horizontal member fixing hardware fixed to the structural axis member, or is an integer multiple of the pitch of the metal pin holes. With this configuration, the horizontal member fixing hardware and the shaft portion of the reinforcing member can be fixed to the structural axis member by a common second connecting member.

[0009] (4) In the reinforcing member described in any one of (1) to (3) above, the base portion has four sides, two of the four sides are parallel to each other, and the other two sides are parallel to each other, and the arm plate extends so as to intersect one of the four sides in a plan view. With this configuration, by aligning one side of the base parallel to the edge of the structural axis member, the arm plate can be positioned so as to intersect the edge of the structural axis member in a plan view.

[0010] (5) In the reinforcing member described in any one of (1) to (3) above, the base portion has four sides, two of the four sides are parallel to each other, and the other two sides are parallel to each other, and the arm plate extends so as to intersect the corner formed by the two sides in a plan view. With this configuration, the arm plate can be positioned so as to intersect the corner of the column in a plan view by aligning the corner of the base portion where the arm plate intersects in a plan view with the corner of the column.

[0011] (6) A building according to one aspect of the present disclosure, comprising a frame and a roof support provided on the frame, wherein the roof support includes a roof corner support that supports a roof corner, the frame comprises, as a frame axial member, a first exterior wall horizontal member extending in a first direction along the horizontal, a second exterior wall horizontal member extending in a second direction intersecting the first direction along the horizontal, and columns supporting the first exterior wall horizontal member and the second exterior wall horizontal member, the roof corner support comprises any one of the reinforcing members described in (1) to (5) above and an inclined member coupled to the reinforcing member, the reinforcing member being fixed to the upper surface of the column.

[0012] According to the above configuration, the roof corner support comprises a reinforcing member fixed to the upper surface of the column and an inclined member connected to the reinforcing member. Thus, the roof corner support has a reinforcing member fixed to the column. Since the reinforcing member has a shaft portion, it can be easily attached to the column. Also, since the reinforcing member does not have a portion that follows the side of the column, it is easy to connect horizontal members to the column. Furthermore, it is easy to position the inclined member connected to the reinforcing member so as not to interfere with other roof components. For this reason, the ease of construction can be improved compared to the roof corner support of the reference example.

[0013] (7) In the building described in (6) above, the second exterior wall horizontal member is fixed to the column by a horizontal member fixing fitting, and the shaft portion of the reinforcing member, the column, and the horizontal member fixing fitting are connected by a second connecting member.

[0014] This configuration allows for more efficient construction of the roof corner support compared to cases where the connecting member that fixes the shaft portion of the reinforcing member to the column is different from the connecting member that fixes the horizontal member fixing hardware to the column.

[0015] (8) The building described in (6) or (7) above, further comprising an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member connected to the additional reinforcing member, wherein the additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member, and the inclined member is positioned parallel to the additional inclined member. With this configuration, the roof corner and its surrounding area are supported by the inclined member and the additional inclined member. This improves the strength of the roof corner.

[0016] (9) In the building described in (8) above, the additional reinforcing member has the same structure as the reinforcing member. With this configuration, other structural axial members can be connected to the portion of the structural axial member where the additional reinforcing member is placed. In this way, the design freedom of the roof support structure can be improved.

[0017] (10) The building described in (6) or (7) above, further comprising an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member connected to the additional reinforcing member, wherein the additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member, and the inclined member is positioned such that, in a plan view, the further it is from the first horizontal exterior wall member, the further it is from the additional inclined member.

[0018] In this configuration, the roof corner is supported by an inclined member and an additional inclined member. The inclined members are arranged such that, in a plan view, they move further away from the additional inclined member as they move away from the first horizontal exterior wall member. As a result, the area near the corner of the roof is supported by the tip of the inclined member. This improves the strength of the corner of the roof.

[0019] (11) The building described in (10) above, wherein the additional reinforcing member has the same structure as the reinforcing member. With this configuration, other structural axial members can be connected to the portion of the structural axial member where the additional reinforcing member is placed. In this way, the design freedom of the roof support structure can be improved.

[0020] The reinforcing member of this disclosure can improve the design flexibility of the support structure at the corner of the roof. The building of this disclosure can improve the constructability of the support structure at the corner of the roof.

[0021] This is a perspective view of a building according to the first embodiment. This is a partial plan view of the roof of a building according to the first embodiment. This is a perspective view of the roof support section of a building according to the first embodiment. This is a perspective view of a reinforcing member according to the first embodiment. This is a side view of a reinforcing member fixed to a column according to the first embodiment. This is an exploded perspective view of the first embodiment with the inclined member separated from the reinforcing member. This is a perspective view of a reference reinforcing member. This is a side view of a reference reinforcing member fixed to a horizontal member. This is a perspective view of the roof support section of a reference example. This is a perspective view of a building according to the second embodiment. This is a perspective view of a reinforcing member according to the second embodiment. This is a schematic diagram of a building having a lean-to roof to which a reinforcing member is applied. This is a plan view of the roof support section of the lean-to roof.

[0022] <First Embodiment> The building 1 of this embodiment will be described with reference to Figures 1 to 9. In this embodiment, the first direction DX is a predetermined direction along the horizontal. The second direction DY is a direction along the horizontal and intersects the first direction DX. In this embodiment, the second direction DY is perpendicular to the first direction DX.

[0023] Examples of building 1 include detached houses, apartment buildings, commercial facilities, public facilities, etc. In this embodiment, building 1 is a two-story house. [Building] As shown in Figure 1, building 1 comprises a building body 2 that encloses the interior space and a roof 3 that covers the interior space. In this embodiment, the building body 2 has an exterior wall 4 that encloses the interior space. The building body 2 comprises a first exterior wall 5 that extends in a first direction DX and a second exterior wall 6 that extends in a second direction DY as the exterior wall 4. In a plan view, the second exterior wall 6 is perpendicular to the first exterior wall 5.

[0024] The roof 3 has a sloping roof section 10. In this embodiment, the roof 3 has two sloping roof sections 10. The two sloping roof sections 10 are connected at their respective upper ends. The sloping roof section 10 slopes downward from its upper end to its lower end. The upper end of the sloping roof section 10 is located above the building body 2 and extends along the first direction DX in a plan view. The lower end of the sloping roof section 10 is located outside the building body 2 in a plan view and extends along the first direction DX.

[0025] In plan view, the sloping roof section 10 is divided into a main roof section 11 located within the building body 2, a roof eaves section 12, a roof gable section 13, and a roof corner section 14. The roof eaves section 12 is located outside the building body 2 and is the part that runs along the first exterior wall 5. The roof gable section 13 is located outside the building body 2 and is the part that runs along the second exterior wall 6. The roof corner section 14 is located outside the building body 2 and is the part where the extension of the roof eaves section 12 and the extension of the roof gable section 13 overlap.

[0026] As shown in Figure 2, the sloping roof section 10 is divided in plan view into two regions aligned in the first direction DX by a first boundary line L1 that runs along the second direction DY. In plan view, the first boundary line L1 extends in the first direction DX at a position away from the second outer wall 6 and intersects the first outer wall 5. In this embodiment, in the sloping roof section 10, the portion that is different in plan view from the portion closer to the second outer wall 6 than the first boundary line L1 is defined as the first region R1. In the sloping roof section 10, the portion that is closer to the second outer wall 6 than the first boundary line L1 is defined as the second region R2.

[0027] The first region R1 of the sloping roof section 10 has a roof body support section 41. The roof body support section 41 comprises a plurality of rafters 51 extending in the second direction DY. The rafters 51 extend from the upper end to the lower end of the sloping roof section 10. In a plan view, the lower ends of the rafters 51 are located outside the building body 2. The plurality of rafters 51 are arranged in the first direction DX so that they are parallel to each other.

[0028] As shown in Figure 2, the second region R2 of the sloping roof section 10 is further divided into two regions aligned in the second direction DY by a second boundary line L2 that runs along the first direction DX. In a plan view, the second boundary line L2 is located closer to the upper end of the sloping roof section 10 than the roof corner 14 in the second direction DY and extends along the first direction DX. In the second region R2 of the sloping roof section 10, in a plan view, the portion closer to the upper end of the sloping roof section 10 than the second boundary line L2 is defined as the third region R3. In the second region R2 of the sloping roof section 10, in a plan view, the portion closer to the lower end of the sloping roof section 10 than the second boundary line L2 is defined as the fourth region R4.

[0029] The third region R3 of the sloping roof section 10 has a roof gable support section 42. The roof gable support section 42 comprises a plurality of roof gable support members 52. The roof gable support members 52 extend in the first direction DX. In a plan view, the ends of the roof gable support members 52 are located on the outside of the building body 2. The roof gable support members 52 are arranged in the second direction DY so that they are parallel to each other.

[0030] The fourth region R4 of the sloping roof section 10 has a roof corner support section 43. The roof corner support section 43 includes an inclined member 53 (see below). The inclined member 53 extends in the second direction DY in a plan view. The inclined member 53 extends parallel to the rafters 51. The inclined member 53 is positioned on the upper surface of the column 23X. Specifically, in a plan view, the inclined member 53 is positioned so that its upper end overlaps the column 23X. The inclined member 53 is supported by a reinforcing member 60, which will be described later. The lower end of the inclined member 53 is located outside the building body 2 in a plan view. The inclined member 53 supports the eaves 7. Here, the eaves 7 is the portion including the roof eaves section 12 and the roof corner section 14 described above. The inclined member 53 mainly supports the end of the roof eaves section 12 and the roof corner section 14.

[0031] The roof corner support 43 may include an additional inclined member 54 (see below). The additional inclined member 54 extends in the second direction DY in a plan view. The additional inclined member 54 extends parallel to the rafter 51. The additional inclined member 54 is positioned between the rafter 51 and the inclined member 53. The additional inclined member 54 is fixed to the upper surface of the first exterior wall horizontal member 25. The additional inclined member 54 is supported by an additional reinforcing member 60X, which will be described below. The upper end of the additional inclined member 54 is connected to the roof gable support member 52. The lower end of the additional inclined member 54 is located outside the building body 2 in a plan view. The additional inclined member 54, together with the inclined member 53, supports the eaves 7. The additional inclined member 54 supports the vicinity of the end of the roof eaves 12.

[0032] [Skeleton Structure] As shown in Figure 3, the building 1 comprises a frame 20 and a roof support section 40 provided on the frame 20 as its skeletal structure. In Figure 3, only the upper part of the frame 20 is shown.

[0033] The structural frame 20 is the framework of the building 1. The structural frame 20 is composed of structural axial members 20X. The structural axial members 20X include columns 23 and horizontal members 24. The structural frame 20 comprises a main structural body 21 provided on the foundation and a roof structure 22 provided on the upper part of the main structural body 21. The main structural body 21 comprises a plurality of columns 23 and horizontal members 24 that span two or more of the plurality of columns 23.

[0034] In this embodiment, the building structure 20 includes a first exterior wall horizontal member 25 extending in a first direction DX, a second exterior wall horizontal member 26 extending in a second direction DY intersecting the first direction DX, and columns 23X supporting the first exterior wall horizontal member 25 and the second exterior wall horizontal member 26. The columns 23X are positioned at the intersection of the first exterior wall 5 and the second exterior wall 6. The first exterior wall horizontal member 25 is positioned within the first exterior wall 5. The second exterior wall horizontal member 26 is positioned within the second exterior wall 6.

[0035] The first exterior wall horizontal member 25 is fixed to the column 23X by horizontal member fixing hardware (not shown). Specifically, the horizontal member fixing hardware (not shown) is fixed to the first side surface 23A at the upper end of the column 23X. The first exterior wall horizontal member 25 is connected to the horizontal member fixing hardware (not shown) fixed to the first side surface 23A. The horizontal member fixing hardware that fixes the first exterior wall horizontal member 25 to the column 23X has the same structure as the horizontal member fixing hardware 28 that fixes the second exterior wall horizontal member 26 to the column 23X.

[0036] As shown in Figure 5, the second exterior wall horizontal member 26 is fixed to the column 23X by horizontal member fixing hardware 28. Specifically, the horizontal member fixing hardware 28 is fixed to the second side surface 23B that intersects with the first side surface 23A at the upper end of the column 23X. The second exterior wall horizontal member 26 is connected to the horizontal member fixing hardware 28 fixed to the second side surface 23B.

[0037] The horizontal member fixing hardware 28 comprises a fixing plate 91 fixed to the side surface of the column 23X, and two plates 92 protruding from the fixing plate 91. The plates 92 are inserted into slits on the end face of the horizontal member 24. With the plates 92 inserted into the slits of the horizontal member 24, they are connected to the horizontal member 24 by drift pins. The plates 92 have connecting holes 93 through which the drift pins are inserted, and holes 94 provided near the connecting holes 93. Drift pins are not inserted into the holes 94. In this embodiment, the holes 94 are positioned between the two connecting holes 93. The holes 94 are configured as elongated holes. Another form of the holes 94A is formed as an arc-shaped hole centered on the connecting hole 93 (see dashed line). Multiple holes 94A are configured as arc-shaped holes of the same diameter centered on the connecting hole 93. By forming a hole 94 around the connecting hole 93, when an excessive load is applied to the joint between the column 23X and the horizontal member 24, the area around the connecting hole 93 can be locally deformed. This relatively reduces the load applied to the horizontal member 24, thereby suppressing the splitting of the horizontal member 24. Furthermore, the overall deformation of the horizontal member fixing hardware 28 is suppressed by the local deformation around the connecting hole 93.

[0038] As shown in Figure 3, the roof truss 22 supports the roof support section 40. The roof truss 22 comprises a ridge beam 31 (see Figure 2), an intermediate member 32, a first support 33 that supports the ridge beam 31, a second support 34 that supports the intermediate member 32, a first inclined member 35, and a second inclined member 36. Note that the ridge beam 31 is omitted in Figure 3.

[0039] The ridge beam 31 is a member that extends along the upper end of the sloping roof section 10 (see Figure 2). The intermediate member 32 is positioned lower than the ridge beam 31 and extends parallel to the ridge beam 31. The first beam 33 is a member that extends upward from the upper surface of the second exterior wall horizontal member 26. The second beam 34 is a member that extends upward from the upper surface of the second exterior wall horizontal member 26 and is shorter than the first beam 33. The second beam 34 is positioned closer to the first exterior wall horizontal member 25 than the first beam 33. The first inclined member 35 extends to connect the upper end of the first beam 33 and the upper end of the second beam 34. The second inclined member 36 extends to connect the upper end of the second beam 34 and the vicinity of the end of the second exterior wall horizontal member 26. The first inclined member 35 and the second inclined member 36 are arranged so as to overlap the second exterior wall horizontal member 26 in a plan view.

[0040] [Roof support section] As shown in Figure 3, the roof support section 40 includes the roof body support section 41 described above, the roof gable support section 42 described above, and the roof corner support section 43 that supports the roof corner 14.

[0041] The roof body support section 41 supports a part of the roof body section 11 and a part of the roof eaves section 12. As described above, the roof body support section 41 is equipped with a plurality of rafters 51. The roof gable support section 42 supports a part of the roof body section 11 and a part of the roof gable section 13. As described above, the roof gable support section 42 is equipped with a plurality of roof gable support members 52.

[0042] The roof corner support 43 supports the roof corner 14. The roof corner support 43 supports not only the roof corner 14 but also a part of the roof eaves 12. The roof corner support 43 comprises a reinforcing member 60 and an inclined member 53. The reinforcing member 60 is fixed to the upper surface of the column 23X. The inclined member 53 is connected to the reinforcing member 60. The inclined member 53 is arranged parallel to the additional inclined member 54 (see below).

[0043] The roof corner support portion 43 further includes an additional reinforcing member 60X and an additional inclined member 54. The additional reinforcing member 60X is fixed to the first outer wall horizontal member 25. The additional inclined member 54 is coupled to the additional reinforcing member 60X. The additional inclined member 54 is arranged at an interval from the inclined member 53 and intersects the first outer wall horizontal member 25. The additional reinforcing member 60X has the same structure as the reinforcing member 60 shown in the first embodiment.

[0044] The roof corner portion 14 is supported by members arranged near the roof corner portion 14. Specifically, the roof corner portion 14 is supported by the inclined member 53 and the roof edge support member 52. [Reinforcing Member] The reinforcing member 60 reinforces the inclined member 53. The reinforcing member 60 is made of metal. In one example, the reinforcing member 60 is made of steel. The reinforcing member 60 is attached to the building shaft member 20X. Examples of the building shaft member 20X are the column 23 and the horizontal member 24.

[0045] As shown in FIG. 4, the reinforcing member 60 includes a base portion 61, a shaft portion 62, and an arm portion 63. The base portion 61 and the arm portion 63 are made of steel plates. The shaft portion 62 is made of a metal pipe. The shaft portion 62 is connected to the base portion 61 by welding. The arm portion 63 is connected to the base portion 61 by welding.

[0046] The base portion 61 is a portion arranged on the upper surface of the building shaft member 20X. For example, the base portion 61 is arranged on the upper surface of the column 23X. In another example, the base portion 61 is arranged on the upper surface of the horizontal member 24. The base portion 61 has four sides 61A. Two of the four sides 61A are parallel to each other. The other two of the four sides 61A are parallel to each other. An example of the shape of the base portion 61 is a rectangle.

[0047] The shaft portion 62 extends downward from the lower surface of the base portion 61. The shaft portion 62 is inserted into a vertical hole 23C that extends downward from the upper surface of the housing shaft member 20X. The shaft portion 62 has a plurality of second holes 62A. The second holes 62A are holes through which the second coupling member 66 is inserted. The second coupling member 66 is a member that couples the housing shaft member 20X and the shaft portion 62. Examples of the second coupling member 66 are bolts and drift pins. The pitch of the plurality of second holes 62A is equal to the pitch of the metal pin holes 28A of the horizontal member fixing hardware 28 fixed to the housing shaft member 20X, or is an integral multiple of the pitch of the metal pin holes 28A.

[0048] The shaft portion 62 may have a third hole 62B. The shaft portion 62 may have a plurality of third holes 62B. The third holes 62B are holes through which the third coupling member is inserted. The third coupling member is a member that couples the housing shaft member 20X and the shaft portion 62. Examples of the third coupling member are bolts and drift pins. The pitch of the plurality of third holes 62B is equal to the pitch of the metal pin holes 28A of the horizontal member fixing hardware 28 fixed to the housing shaft member 20X, or is an integral multiple of the pitch of the metal pin holes 28A.

[0049] As shown in FIG. 5, in the building 1 of the present embodiment, the shaft portion 62 of the reinforcing member 60, the column 23X, and the horizontal member fixing hardware 28 are coupled by the second coupling member 66. Since the horizontal member fixing hardware 28 has the above-described hole portion 94, when an excessive load is applied to the joint portion of the column 23X and the horizontal member 24, the periphery of the connecting hole 93 can be locally deformed as described above. Thereby, it is possible to suppress an excessive load from being directly transmitted to the column 23X via the shaft portion 62 of the reinforcing member 60. Therefore, it is possible to suppress deformation of the housing 20 under an excessive load.

[0050] [Arm section] The arm section 63 supports the inclined member 53 which is positioned on top of the column 23X. The arm section 63 has an arm plate 64 that contacts the side surface of the inclined member 53. The arm plate 64 is connected to the base section 61 when it is upright. The base of the arm plate 64 is fixed to the base section 61 by welding. The tip 64A of the arm plate 64 is located outside the base section 61 in a plan view. The base of the arm plate 64 is located above the base section 61 in a plan view. The arm plate 64 extends so as to intersect one of the four sides 61A in a plan view. The arm plate 64 extends diagonally downward from the top surface of the base section 61 such that the tip 64A of the arm plate 64 is located below the base section 61 in a side view. The direction in which the arm plate 64 extends is the same as the direction in which the reinforcing member 60 extends with respect to the rafter 51 when it is fixed to the column 23X.

[0051] The arm plate 64 is provided with a first hole 63A. The first hole 63A is configured for the insertion of a first connecting member 65. The first connecting member 65 is a member that connects the inclined member 53 and the arm plate 64. Examples of the first connecting member 65 are bolts and drift pins.

[0052] The first hole 63A is configured as an elongated hole. The first hole 63A extends along the direction in which the arm plate 64 extends. The arm plate 64 is provided with three first holes 63A. One of the three first holes 63A is provided in the portion of the arm plate 64 that overlaps with the base portion 61 in a plan view. Another of the three first holes 63A is located near the base portion 61 in the portion of the arm plate 64 that extends outward from the base portion 61 in a plan view. The remaining one of the three first holes 63A is located near the tip of the portion of the arm plate 64 that extends outward from the base portion 61 in a plan view.

[0053] As shown in Figure 6, the inclined members 53 are arranged on both sides of the arm plate 64. The arm plate 64 is sandwiched between the two inclined members 53. The two inclined members 53 are positioned to sandwich the arm plate 64 and are connected to the arm plate 64 by the first connecting member 65.

[0054] [Reference Reinforcement Member] The reference reinforcement member 70 is a member that has been conventionally used to fix the additional inclined member 54 to the horizontal member 24. The reference reinforcement member 70 is made of metal. In one example, the reference reinforcement member 70 is made of steel.

[0055] As shown in Figure 7, the reference reinforcing member 70 comprises a base portion 71, a mounting plate portion 72, and an arm portion 73. The arm portion 73 has an arm plate 74. The base portion 71 and the arm portion 73 have substantially the same structure as the base portion 61 and the arm portion 63 of the reinforcing member 60.

[0056] As shown in Figure 8, the mounting plate portion 72 extends downward from the end of the base portion 71. The mounting plate portion 72 is configured to contact the side surface of the first exterior wall horizontal member 25 when the base portion 71 is placed on the first exterior wall horizontal member 25.

[0057] The mounting plate portion 72 has a fourth hole 72A. The fourth hole 72A is configured for the insertion of a fourth connecting member. The fourth connecting member is a member that penetrates the mounting plate portion 72 and fixes the mounting plate portion 72 to the first exterior wall horizontal member 25. Examples of the fourth connecting member are bolts, drift pins, and screws.

[0058] [Operation of this embodiment] The operation of the reinforcing member 60 of this embodiment will be explained with reference to Figures 3 and 9. The roof eaves 12, roof gable 13, and roof corner 14 are required to have sufficient strength to withstand the load from the weight of the roof 3, the wind blowing up from below the building 1, and the weight of the snow.

[0059] Therefore, the roof gable support member 52 has dimensions longer than the width of the roof gable section 13. Preferably, the length of the bracing portion PA of the roof gable support member 52 is longer than the length of the cantilever portion PB of the roof gable support member 52. Therefore, the portion of the roof gable section 13 supported by the roof gable support member 52 has sufficient strength. The bracing portion PA is located inside the building body 2 in a plan view. The cantilever portion PB is located outside the building body 2 in a plan view.

[0060] Similarly, the rafters 51 that support the roof eaves 12 have dimensions longer than the width of the roof eaves 12. The rafters 51 extend from the ridge beam 31 to the lower end of the sloping roof section 10. Therefore, the length of the bracing portion PA of the rafters 51 is sufficiently longer than the length of the cantilever portion PB of the rafters 51. As a result, the portion of the roof eaves 12 supported by the rafters 51 has sufficient strength.

[0061] There is a dead space DS (see Figure 2) from the roof eaves 12 to the roof corner 14 where rafters 51 cannot be placed. This is related to the length of the roof gable support member 52. Because the length of the bracing portion PA of the roof gable support member 52 is secured to be above a certain length, rafters 51 cannot be placed near the roof corner 14. This results in the aforementioned dead space DS. An additional inclined member 54, supported by an additional reinforcing member 60X, is placed in the dead space DS. In a plan view, the length of the additional inclined member 54 in the second direction DY is limited by the presence of the roof gable support member 52. Thus, because the length of the bracing portion PA of the additional inclined member 54 is insufficient, the additional inclined member 54 is supported by the additional reinforcing member 60X.

[0062] Here, with reference to Figure 9, the support structure of the roof corner 14 will be further explained. Figure 9 shows the support structure of a reference example of the roof corner 14. The roof corner 14 is supported by the reference reinforcing member 70 (not shown in Figure 9) described above. The mounting plate portion 72 of the reference reinforcing member 70 is fixed to the side surface of the first exterior wall horizontal member 25. Because the reference reinforcing member 70 has a mounting plate portion 72, it cannot be placed on top of the column 23. Also, because the reference reinforcing member 70 has a mounting plate portion 72, even when it is placed on the upper surface of the horizontal member 24, the placement of the reference reinforcing member 70 is restricted in relation to other horizontal members 24 connected to the said horizontal member 24.

[0063] In the example structure, as shown in Figure 9, a roof diagonal member 80 with a long bracing PA is used to reinforce the roof corner 14. The roof diagonal member 80 is positioned along the sloping roof section 10 and intersects both the first direction DX and the second direction DY in a plan view. The length of the roof gable support member 52 is adjusted so as not to interfere with the roof diagonal member 80. Similarly, the length of the additional sloping member 54 is adjusted so as not to interfere with the roof diagonal member 80. Thus, in the example, the structure supporting the roof corner 14 is complex. For this reason, the construction efficiency of the roof 3 is not high in the example.

[0064] In contrast, in this embodiment, the reinforcing member 60 is fixed to the upper surface of the column 23X located near the roof corner 14 (see Figure 3). The inclined member 53 is then connected to the reinforcing member 60. The end of the roof corner 14 is supported by the inclined member 53.

[0065] Since the inclined member 53 is supported by the reinforcing member 60, the length of the bracing portion PA of the inclined member 53 can be shortened. As a result, the inclined member 53 is less likely to interfere with other roof components. The other roof components are the roof gable support member 52 and the additional inclined member 54. Therefore, it becomes unnecessary to adjust the length of the additional inclined member 54 and the roof gable support member 52, which are positioned around the roof corner 14, or the length adjustment work can be reduced. In this way, the efficiency of roof construction can be improved.

[0066] Furthermore, the reinforcing member 60 does not have a mounting plate portion 72 like the reference reinforcing member 70. The reinforcing member 60 is fixed to the structural shaft member 20X by its shaft portion 62. Therefore, the placement of the reference reinforcing member 70 is not restricted in relation to other horizontal members 24 connected to the horizontal member 24. As a result, there is a high degree of freedom in the placement of the reinforcing member 60 in the structural body 20. This improves the design freedom of the support structure of the roof 3.

[0067] [Effects of this embodiment] (1) The reinforcing member 60 reinforces the inclined member 53. The reinforcing member 60 comprises a base portion 61, a shaft portion 62, and an arm portion 63 that supports the inclined member 53. The arm portion 63 has an arm plate 64 that contacts the side surface of the inclined member 53. The arm plate 64 is provided with a first hole 63A through which the first connecting member 65 is inserted.

[0068] Conventional reinforcing members have a fixing portion that is fixed to the side surface of the horizontal member 24 of the exterior wall 4. On the other hand, other horizontal members 24 may be connected to the side surface of the horizontal member 24. For this reason, the locations where the reinforcing member can be placed are limited with conventional reinforcing members. In contrast, the reinforcing member 60 with the above configuration has a shaft portion 62. The shaft portion 62 is inserted through the vertical hole 23C of the column 23X. For this reason, other horizontal members can be connected to the side surface of the column 23X. Alternatively, the shaft portion 62 may be inserted through the vertical hole of the horizontal member 24. In this case, other horizontal members can be connected to the side surface of the horizontal member 24. Therefore, with the reinforcing member 60 with the above configuration, the design freedom of the support structure of the roof 3 can be improved.

[0069] (2) The shaft portion 62 has a plurality of second holes 62A through which the second connecting member 66 is inserted. With this configuration, the reinforcing member 60 can be firmly fixed to the structural shaft member 20X. (3) The pitch of the plurality of second holes 62A is equal to the pitch of the metal pin holes 28A of the horizontal member fixing hardware 28 fixed to the structural shaft member 20X, or is an integer multiple of the pitch of the metal pin holes 28A. With this configuration, the horizontal member fixing hardware 28 and the shaft portion 62 of the reinforcing member 60 can be fixed to the structural shaft member 20X by a common second connecting member 66.

[0070] (4) The base portion 61 has four sides 61A. The arm plate 64 extends so as to intersect one of the four sides 61A in a plan view. With this configuration, when the reinforcing member 60 is placed on top of the column 23X, the arm plate 64 can be positioned so as to intersect that side of the column 23X in a plan view by aligning one side 61A of the base parallel to one side of the column 23X. Also, when the reinforcing member 60 is placed on top of the horizontal member 24, the arm plate 64 can be positioned so as to intersect that side of the horizontal member 24 in a plan view by aligning one side 61A of the base parallel to the edge of the horizontal member 24.

[0071] (5) The building 1 comprises a frame 20 and a roof support section 40 provided on the frame 20. The roof support section 40 includes a roof corner support section 43 that supports the roof corners 14. The frame 20 comprises a first exterior wall horizontal member 25 extending horizontally in a first direction DX, a second exterior wall horizontal member 26, and columns 23X that support the first exterior wall horizontal member 25 and the second exterior wall horizontal member 26. The roof corner support section 43 comprises a reinforcing member 60 and an inclined member 53 connected to the reinforcing member 60. The reinforcing member 60 is fixed to the upper surface of the column 23X.

[0072] According to the above configuration, the roof corner support section 43 comprises a reinforcing member 60 fixed to the upper surface of the column 23X and an inclined member 53 connected to the reinforcing member 60. Thus, the roof corner support section 43 has a reinforcing member 60 fixed to the column 23X. Since the reinforcing member 60 has a shaft portion 62, it can be easily attached to the column 23X. Also, since the reinforcing member 60 does not have a portion that follows the side surface of the column 23X, it is easy to connect the horizontal member 24 to the column 23X. Furthermore, it is easy to position the inclined member 53 connected to the reinforcing member 60 so as not to interfere with other roof components. For this reason, the constructability can be improved compared to the roof corner support section 43 of the reference example. In this embodiment, the other roof components are the roof gable support member 52 and the additional inclined member 54.

[0073] (6) The second exterior wall horizontal member 26 is fixed to the column 23X by a horizontal member fixing hardware 28. The shaft portion 62 of the reinforcing member 60, the column 23X, and the horizontal member fixing hardware 28 are connected by a second connecting member 66. With this configuration, the roof corner support portion 43 can be constructed more efficiently compared to the case where the connecting member that fixes the shaft portion 62 of the reinforcing member 60 to the column 23X is different from the connecting member that fixes the horizontal member fixing hardware 28 to the column 23X.

[0074] (7) The building 1 further comprises an additional reinforcing member 60X and an additional inclined member 54. The additional inclined member 54 is positioned at a distance from the inclined member 53 and intersects the first exterior wall horizontal member 25. The inclined member 53 is positioned parallel to the additional inclined member 54. With this configuration, the roof corner 14 and its surrounding area are supported by the inclined member 53 and the additional inclined member 54. This improves the strength of the roof corner 14.

[0075] (8) In the building 1, the additional reinforcing member 60X has the same structure as the reinforcing member 60. With this configuration, other horizontal members 24 can be connected to the portion of the first exterior wall horizontal member 25 where the additional reinforcing member 60X is placed. In this way, the design freedom of the support structure of the roof 3 can be improved. In this embodiment, no other horizontal members 24 are connected to the portion of the first exterior wall horizontal member 25 where the additional reinforcing member 60X is placed, but horizontal members can be added as in the following example. For example, in the portion of the first exterior wall horizontal member 25 where the additional reinforcing member 60X is placed, a horizontal member (also called a "diagonal brace") is provided that is placed diagonally between the first exterior wall horizontal member 25 and the second exterior wall horizontal member 26 to reinforce the building frame 20 of the building 1.

[0076] <Second Embodiment> The building 1 and reinforcing member 60 according to the second embodiment will be described with reference to Figures 10 and 11. In this embodiment, components common to the first embodiment are denoted by the same reference numerals as in the first embodiment, and the description of redundant components is omitted.

[0077] In the first embodiment, the inclined member 53 is arranged parallel to the additional inclined member 54. In contrast, in this embodiment, as shown in Figure 10, the inclined member 53 is arranged such that, in a plan view, it moves further away from the additional inclined member 54 as it moves further away from the first exterior wall horizontal member 25. The tip portion 53A of the inclined member 53 is positioned near the corner of the roof corner portion 14.

[0078] In this configuration, the roof corner 14 and its surrounding area are supported by the inclined member 53 and the additional inclined member 54. The inclined member 53 is positioned such that, in a plan view, it moves further away from the additional inclined member 54 as it moves away from the first exterior wall horizontal member 25. As a result, the area near the corner of the roof corner 14 is supported by the tip 53A of the inclined member 53. This improves the strength of the corner of the roof corner 14.

[0079] In this embodiment, the reinforcing member 60 is configured as follows. As shown in Figure 11, in the reinforcing member 60, the arm plate 64 extends so as to intersect the corner portion 61B formed by the two sides 61A of the base portion 61 in a plan view. With this configuration, by aligning the corner portion 61B of the base portion 61 where the arm plate 64 intersects in a plan view with the corner portion of the column 23X, the arm plate 64 can be positioned so as to intersect the corner portion of the column 23X in a plan view.

[0080] In this embodiment, the additional inclined member 54 is connected to the additional reinforcing member 60X. The additional reinforcing member 60X has the same structure as the reinforcing member 60. Therefore, other structural axis members 20X can be connected to the portion of the structural axis member 20X where the additional reinforcing member 60X is located. In this way, the design flexibility of the support structure of the roof 3 can be improved.

[0081] <Modifications> The above embodiment is an example of possible forms for the building 1 and the reinforcing member 60, and is not intended to limit their form. The building 1 and the reinforcing member 60 may take forms different from those exemplified in the above embodiment. Examples include forms in which some of the configurations of the embodiment are replaced, modified, or omitted, or forms in which new configurations are added to the embodiment. Modifications of the embodiment are shown below.

[0082] Referring to Figures 12 and 13, a different application example of the reinforcing member 60 will be described. In the first and second embodiments, the roof corner support portion 43 of the main roof 3 of the building 1 was described. The technology relating to the roof corner support portion 43 of the main roof 3 can also be applied to the lean-to roof 8 of the building 1.

[0083] The building 1 shown in Figure 12 has a lean-to roof 8. The lean-to roof 8 constitutes the roof 3 of the first floor in the two-story building 1. The lean-to roof 8 protrudes from the second-floor exterior wall 4B. In the building 1 shown in Figure 12, the setback SB of the second-floor exterior wall 4B is short. The setback SB indicates the distance between the first-floor exterior wall 4A and the second-floor exterior wall 4B. When the setback SB is short, it is difficult to ensure that the length of the bracing portion PA of the additional inclined member 54 that constitutes the roof support portion 40 of the lean-to roof 8 is sufficient relative to the length of the cantilevered portion.

[0084] Therefore, as shown in Figure 13, the additional inclined member 54 is reinforced by the additional reinforcing member 60X. The additional inclined member 54 corresponds to the additional inclined member 54 of the first embodiment. The additional reinforcing member 60X has the same structure as the reinforcing member 60 shown in the first embodiment. In addition, the roof corner 14 of the lean-to 8 is supported by the reinforcing member 60 and the inclined member 53 connected to the reinforcing member 60. The reinforcing member 60 and the inclined member 53 have the same structure as the reinforcing member 60 and the inclined member 53 shown in the first embodiment. Thus, the reinforcing member 60 can also be applied to the roof corner 14 of the lean-to 8.

[0085] This specification discloses the following technology: [Appendix 1] Appendix 1 is a reinforcing member for reinforcing an inclined member that supports the eaves. The reinforcing member comprises a base portion disposed on the upper surface of a structural shaft member, a shaft portion extending downward from the lower surface of the base portion and inserted through a vertical hole in the structural shaft member, and an arm portion that supports the inclined member and is disposed on the structural shaft member.

[0086] The arm portion has an arm plate that contacts the side surface of the inclined member. The arm plate extends diagonally downward from the upper surface of the base portion such that, in a plan view, the tip of the arm plate is located outside the base portion, and in a side view, the tip of the arm plate is located below the base portion. The arm plate is provided with a first hole through which a first connecting member that connects the inclined member and the arm plate is inserted.

[0087] [Note 2] In the reinforcing member described in Note 1, the shaft portion has a plurality of second holes through which a second connecting member that connects the structural shaft member and the shaft portion is inserted.

[0088] [Note 3] In the reinforcing member described in Note 2, the pitch of the plurality of second holes is equal to the pitch of the metal pin holes of the metal fixing hardware fixed to the structural axis member, or an integer multiple of the pitch of the metal pin holes.

[0089] [Note 4] In the reinforcing member described in Note 1, the base portion has four sides. Two of the four sides are parallel to each other, and the other two sides are parallel to each other. The arm plate extends so as to intersect one of the four sides in a plan view.

[0090] [Note 5] In the reinforcing member described in Note 1, the base portion has four sides. Two of the four sides are parallel to each other, and the other two sides are parallel to each other. The arm plate extends so as to intersect the corner formed by the two sides in a plan view.

[0091] [Note 6] Note 6 is a building. The building comprises a frame and roof support sections provided on the frame. The roof support sections include roof corner support sections that support the corners of the roof. The frame comprises, as structural axis members, a first exterior wall horizontal member extending in a first direction along the horizontal, a second exterior wall horizontal member extending in a second direction intersecting the first direction along the horizontal, and columns that support the first exterior wall horizontal member and the second exterior wall horizontal member. The roof corner support section comprises one of the reinforcing members described in Notes 1 to 5 and an inclined member connected to the reinforcing member, the reinforcing member being fixed to the upper surface of the column.

[0092] [Note 7] In the building described in Note 6, the second exterior wall horizontal member is fixed to the column by a horizontal member fixing hardware. The shaft portion of the reinforcing member, the column, and the horizontal member fixing hardware are connected by a second connecting member.

[0093] [Note 8] The building described in Note 6 further comprises an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member connected to the additional reinforcing member. The additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member. The inclined member is positioned parallel to the additional inclined member.

[0094] [Note 9] In the building described in Note 8, the additional reinforcing member has the same structure as the reinforcing member.

[0095] [Note 10] The building described in Note 6 further comprises an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member connected to the additional reinforcing member. The additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member. In a plan view, the inclined member is positioned such that it moves further away from the additional inclined member as it moves further away from the first horizontal exterior wall member.

[0096] [Note 11] In the building described in Note 10, the additional reinforcing member has the same structure as the reinforcing member.

[0097] DX...First direction, DY...Second direction, 1...Building, 14...Roof corner, 20...Structure, 20X...Structure axis member, 23...Column, 23X...Column, 25...First exterior wall horizontal member, 26...Second exterior wall horizontal member, 28...Horizontal member fixing hardware, 28A...Hardware pin hole, 40...Roof support, 43...Roof corner support, 53...Inclined member, 54...Additional inclined member, 60...Reinforcement member, 61...Base part, 62...Axis part, 62A...Second hole, 63...Arm part, 63A...First hole, 64...Arm plate, 65...First connecting member, 66...Second connecting member, 60X...Additional reinforcement member, 71...Base part, 73...Arm part, 74...Arm plate.

Claims

1. A reinforcing member for reinforcing an inclined member that supports an eaves, comprising: a base portion disposed on the upper surface of a structural shaft member; a shaft portion extending downward from the lower surface of the base portion and inserted through a vertical hole in the structural shaft member; and an arm portion disposed on the structural shaft member to support the inclined member, wherein the arm portion has an arm plate that contacts the side surface of the inclined member, the arm plate extends diagonally downward from the upper surface of the base portion such that in a plan view the tip of the arm plate is located outside the base portion and in a side view the tip of the arm plate is located below the base portion, and the arm plate is provided with a first hole through which a first connecting member that connects the inclined member and the arm plate is inserted.

2. The reinforcing member according to claim 1, wherein the shaft portion has a plurality of second holes through which a second connecting member that connects the structural shaft member and the shaft portion is inserted.

3. The reinforcing member according to claim 2, wherein the pitch of the plurality of second holes is equal to the pitch of the metal pin holes of the metal fixing hardware fixed to the structural axis member, or is an integer multiple of the pitch of the metal pin holes.

4. The reinforcing member according to any one of claims 1 to 3, wherein the base portion has four sides, two of the four sides are parallel to each other, and the other two sides are parallel to each other, and the arm plate extends so as to intersect one of the four sides in a plan view.

5. The reinforcing member according to any one of claims 1 to 3, wherein the base portion has four sides, two of the four sides are parallel to each other, and the other two sides are parallel to each other, and the arm plate extends so as to intersect the corner formed by the two sides in a plan view.

6. A building comprising a frame and a roof support section provided on the frame, wherein the roof support section includes a roof corner support section that supports the corners of the roof, the frame comprising, as a frame axis member, a first exterior wall horizontal member extending in a first direction along the horizontal, a second exterior wall horizontal member extending in a second direction intersecting the first direction along the horizontal, and columns supporting the first exterior wall horizontal member and the second exterior wall horizontal member, the roof corner support section comprising a reinforcing member according to any one of claims 1 to 5 and an inclined member coupled to the reinforcing member, the reinforcing member being fixed to the upper surface of the column.

7. The building according to claim 6, wherein the second exterior wall horizontal member is fixed to the column by a horizontal member fixing hardware, and the shaft portion of the reinforcing member, the column, and the horizontal member fixing hardware are connected by a second connecting member.

8. The building according to claim 6 or 7, further comprising an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member coupled to the additional reinforcing member, wherein the additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member, and the inclined member is positioned parallel to the additional inclined member.

9. The building according to claim 8, wherein the additional reinforcing member has the same structure as the reinforcing member.

10. The building according to claim 6 or 7, further comprising an additional reinforcing member fixed to the first horizontal exterior wall member and an additional inclined member coupled to the additional reinforcing member, wherein the additional inclined member is positioned at a distance from the inclined member and intersects the first horizontal exterior wall member, and the inclined member is positioned such that, in a plan view, the further it is from the first horizontal exterior wall member, the further it is from the additional inclined member.

11. The building according to claim 10, wherein the additional reinforcing member has the same structure as the reinforcing member.

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