Assembly structural material

Abstract

To provide a reinforcement member for a structural material or the like which can attain structural optimization while securing strength to be required.SOLUTION: Disclosed is a reinforcement member 100 for a structural material used when a column 202 arranged between a pair of flanges 201a in a beam 201 having an H-shaped cross section and extending to a first direction D1, and extending in a second direction D2 crossed with the first direction D1 is connected to at least one of the flanges 201a. The reinforcement member comprises: a pair of flange facing plate parts 101 respectively arranged to face each flange 201a, and each arranged at a position where at least a part thereof overlaps with the column 202 viewed from the second direction D2; and a web facing plate part 102 connecting the pair of flange facing plate parts 101 together, and arranged to face a web 201b of the beam 201, and the plate thickness dimensions of the web facing plate part 102 is smaller than each of the pair of flange facing plate parts 101.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a reinforcing member for structural materials used when connecting structural materials to each other, and an assembled structural material.

Background Art

[0002] Conventionally, in a building structure, when a second structural material (column or beam) is connected to a beam as a first structural material in a direction orthogonal to the beam, a reinforcing member (reinforcing fitting) as described in Patent Document 1 is provided between the flanges of the first structural material. Such a reinforcing fitting is used for the purpose of preventing deformation of the structural material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, since this type of reinforcing member is generally formed by bending a steel plate, the plate thickness of each part in the reinforcing member is often uniform. However, the strength required for the reinforcing member varies depending on the part, and as a result, the specifications are excessive, leading to an increase in the weight of the reinforcing member.

[0005] Therefore, the present invention provides a reinforcing member for structural materials that achieves structural optimization while ensuring the required strength, and an assembled structural material provided with the same.

Means for Solving the Problems

[0006] The reinforcing member for a structural member according to one aspect of the present invention is disposed between a pair of flanges in a first structural member having an H-shaped cross section and extending in a first direction, and is used when connecting a second structural member extending in a second direction intersecting the first direction to at least one of the flanges. The reinforcing member for a structural member includes a pair of flange opposing plate portions that are respectively disposed opposite to each of the flanges and are disposed at positions where at least a part thereof overlaps the second structural member when viewed from the second direction, and a web opposing plate portion that connects the pair of flange opposing plate portions and is disposed opposite to the web of the first structural member. The plate thickness dimension of the web opposing plate portion is smaller than that of each of the pair of flange opposing plate portions.

[0007] Further, the reinforcing member for a structural member further includes a connecting plate portion that stands in a third direction intersecting the first direction and the second direction from the web opposing plate portion and connects the pair of flange opposing plate portions. The plate thickness dimension of the connecting plate portion may be smaller than that of each of the pair of flange opposing plate portions.

[0008] Further, in the reinforcing member for a structural member, at least one of the pair of flange opposing plate portions may be fastened to the second structural member with a first bolt inserted through a first bolt hole penetrating the flange in the plate thickness direction, sandwiching the flange.

[0009] Further, in the reinforcing member for a structural member, the web opposing plate portion may be fixed to the web with a second bolt inserted through a second bolt hole penetrating the web in the plate thickness direction.

[0010] Further, in the reinforcing member for a structural member, the pair of flange opposing plate portions, the web opposing plate portion, and the connecting plate portion may be integrally formed by casting.

[0011] Further, in the reinforcing member for the structural member, the connecting plate portion has a larger protruding dimension in the third direction from the web opposing plate portion than the pair of flange opposing plate portions, and is provided at a position offset to one side in the first direction with respect to the central position in the first direction in the pair of flange opposing plate portions and the web opposing plate portion. The connecting plate portion may be disposed to face a surface facing one side in the first direction in a web of a third structural member having an H-shaped cross section and extending in the third direction.

[0012] The assembled structural member according to one aspect of the present invention includes the above-described reinforcing member for the structural member, the first structural member provided with the reinforcing member for the structural member, a cylindrical shape with an end opening formed in the end face facing the second direction, the second structural member connected to the first structural member by the structural member reinforcing member, the first bolt inserted through the first bolt hole in the structural member reinforcing member, and a joint member for the structural member provided on the end face of the second structural member and connecting the second structural member and the first structural member by fastening the structural member reinforcing member to itself with the first bolt. The joint member for the structural member has a plate shape and includes a base body covering the end face and the end opening of the second structural member, an annular end face facing surface formed on the base body and facing and joined to the end face of the second structural member toward one side in its own plate thickness direction (hereinafter referred to as the base body plate thickness direction) that coincides with the second direction, a cover surface formed on the base body and disposed inside the end face facing surface to cover the end opening in a state where the end face facing surface faces the end face, a through hole formed in the base body and penetrating the base body in the base body plate thickness direction on the cover surface, a corner nut disposed on one side in the base body plate thickness direction in the base body and located in the internal space of the structural member surrounded by the base body and the first structural member, a rotation restricting surface provided on one side in the base body plate thickness direction in the base body, located in the internal space of the structural member, facing the side surface of the corner nut with a gap in the surface direction of the cover surface (hereinafter referred to as the base body surface direction), and engaging with the corner nut during rotation to restrict the rotation, and a plate thickness direction restricting surface provided on one side in the base body plate thickness direction in the base body, located in the internal space of the structural member, facing the corner nut from the side opposite to the base body in the base body plate thickness direction, and sandwiching the corner nut between the cover surface and itself to restrict the movement of the corner nut in the base body plate thickness direction. The first bolt inserted through the first bolt hole of the flange facing plate portion in the structural member reinforcing member is screwed with the corner nut through the through hole of the base body, so that the flange in the first structural member is sandwiched in the second direction by the structural member reinforcing member and the joint member for the structural member, and the first structural member and the second structural member are connected.

[0013] Further, in the above-described assembled structural member, the base body has a square shape in a top view seen from the thickness direction of the base body plate, the corner nuts are respectively arranged in the vicinity of four corners of the base body, the rotation restricting surface is provided for each corner nut, and each rotation restricting surface faces the outside in the radial direction of a virtual circle centered on the center of the base body when the base body is viewed in the top view, and has an inner opposing surface that can face the side surface of the corner nut with a gap, and an outer opposing surface that faces the inside in the radial direction of the virtual circle and can face the side surface of the corner nut with a gap.

Effect of the Invention

[0014] According to the above-described reinforcing member for a structural member and the assembled structural member, while ensuring the required strength, the structure can be optimized.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0016] (Overall Configuration) The assembled structural member 200 is a structural member employed in, for example, a building structure, and includes a beam 201 which is a first structural member extending in a first direction (horizontal direction) D1 as shown in FIG. 1, a column 202 which is a second structural member extending in a second direction (vertical direction) D2, a reinforcing member 100 for structural members provided on the beam 201 (hereinafter simply referred to as a reinforcing member), a joint member 1 for structural members provided on the column 202 (hereinafter simply referred to as a joint member), and a first bolt 203 for connecting the beam 201 and the column 202 via the reinforcing member 100 and the joint member 1.

[0017] (Beam) The beam 201 is an H-shaped steel beam having a cross-sectional H shape, and has a pair of flanges 201a and a web 201b.

[0018] (Column) The column 202 has a cylindrical shape, and forms an end opening 202x at an end face 202a facing its own longitudinal direction, that is, the second direction D2. Further, the column 202 is a square steel pipe column having a square (square) cross-section orthogonal to its own longitudinal direction. In the present embodiment, the longitudinal direction of the column 202 coincides with the vertical direction, and the end openings 202x are formed at the upper end face and the lower end face of the column 202, respectively. The surface 201c of the flange 201a of the beam 201 is arranged so as to face the longitudinal direction of the column 202. In the present embodiment, columns 202 are connected to both the upper and lower sides with one beam 201 interposed therebetween, but the structure is not limited to this, and it is sufficient that the column 202 is connected to at least one side of the beam 201.

[0019] (Reinforcing member) Next, the reinforcing member 100 will be described in detail. The reinforcing members 100 are arranged one on each side with the web 201b of the beam 201 interposed therebetween.

[0020] In this embodiment, each of the reinforcing members 100 is made of steel and is a casting integrally formed by casting. Specifically, as shown in FIG. 2, the reinforcing member 100 includes flange opposing plate portions 101 that are respectively arranged to face each of the flanges 201a of the beam 201, a web opposing plate portion 102 that connects the pair of flange opposing plate portions 101 and is arranged to face the web 201b of the beam 201, and a connecting plate portion 103 that connects the pair of flange opposing plate portions 101. Note that the reinforcing member 100 of this embodiment is arranged at a position where it substantially entirely overlaps the column 202 when viewed from the second direction D2, but it may be arranged such that at least a part of the reinforcing member 100 overlaps the column 202.

[0021] (Flange opposing plate portion) Each of the flange opposing plate portions 101 is arranged such that its surface contacts the corresponding flange 201a of the beam 201 from the inside. Here, the "inside" of the flange 201a means the side of the region sandwiched by the pair of flanges 201a. Further, a first bolt hole 101a that penetrates each of the flange opposing plate portions 101 in the plate thickness direction, that is, the second direction D2, is formed. As shown in FIGS. 3, 4(a), and 4(b), a pair of first bolt holes 101a are formed at intervals in the first direction D1 in each of the flange opposing plate portions 101.

[0022] A first bolt 203 (see FIG. 2), which will be described in detail later, is inserted into each of the first bolt holes 101a one by one. The plate thickness dimension t1 of each of the flange opposing plate portions 101 is, for example, 12 mm. Note that the flange opposing plate portion 101 may be fixed to the flange 201a by welding together with the first bolt 203.

[0023] (Web opposing plate portion) The web facing plate portion 102 is arranged such that its surface contacts the web 201b in the beam 201. Further, the web facing plate portion 102 is connected to the flange facing plate portions 101 at both ends in the second direction D2, and forms a U shape together with the pair of flange facing plate portions 101 in a side view seen from the first direction D1. That is, from the web facing plate portion 102, the pair of flange facing plate portions 101 are erected on one side in the third direction D3 that intersects (is orthogonal to) the first direction D1 and the second direction D2.

[0024] Further, in each web facing plate portion 102, second bolt holes 102a that penetrate itself in the plate thickness direction, that is, the third direction D3, are formed. The second bolt holes 102a are formed in pairs at intervals in the first direction D1, and the second bolt holes 102a that form a pair in the first direction D1 are further formed in pairs in the second direction D2, and are provided in a total of four locations. The web facing plate portion 102 is fixed to the web 201b by a second bolt 204 (see FIG. 2) inserted through the second bolt hole 102a. In the present embodiment, the web facing plate portions 102 in the two reinforcing members 100 arranged on both sides sandwiching the web 201b are fixed to each other in a state of sandwiching the web 201b by the second bolt 204 and a nut (not shown) screwed thereto. In addition to the fixing by the second bolt 204, the web facing plate portion 102 may be fixed to the web 201b by welding.

[0025] Further, the web facing plate portion 102 has a smaller plate thickness dimension than the pair of flange facing plate portions 101, and the plate thickness dimension t2 of the web facing plate portion 102 is, for example, 4.5 mm or more and 6.0 mm or less. That is, the plate thickness dimension t2 of the web facing plate portion 102 is 3 / 8 times or more and 1 / 2 times or less the plate thickness dimension t1 of the flange facing plate portion 101.

[0026] (Connection plate portion) The connection plate portion 103 stands upright from the web-facing plate portion 102 in a third direction D3 that is horizontal, and is arranged such that its plate thickness direction coincides with the first direction D1. Also, the connection plate portion 103 has a larger protruding dimension on one side in the third direction D3 from the web-facing plate portion 102 than the pair of flange-facing plate portions 101, and extends to the outside of the flange 201a in the third direction D3 (see FIG. 1). Further, a third bolt hole 103a that penetrates the connection plate portion 103 in its plate thickness direction, that is, the first direction D1, is formed in the connection plate portion 103. A pair of third bolt holes 103a are formed in the connection plate portion 103 at intervals in the second direction D2. One third bolt 205 (see FIG. 1), which will be described in detail later, is inserted into each of the third bolt holes 103a.

[0027] Furthermore, the connection plate portion 103 is provided at a position offset to one side in the first direction D1 with respect to the central position in the first direction D1 in the pair of flange-facing plate portions 101 and the web-facing plate portion 102. Then, the connection plate portion 103 is disposed opposite in contact with the surface facing one side in the first direction D1 on the web 210b of an H-shaped steel beam (third structural member) 210 that extends in the third direction D3 and has an H-shaped cross section (see FIG. 1). Then, the third bolt 205 inserted into the third bolt hole 103a of the connection plate portion 103 is inserted into a through hole 210x formed in the web 210b of the beam 210 and fastened to a nut (not shown), whereby the connection plate portion 103 and the beam 210 are connected.

[0028] The plate thickness dimension t3 of the connection plate portion 103 is smaller than the plate thickness dimension t1 of the flange-facing plate portion 101. The plate thickness dimension t3 of the connection plate portion 103 is, for example, 4.5 mm or more and 6.0 mm or less. That is, the plate thickness dimension t3 of the connection plate portion 103 is 3 / 8 times or more and 1 / 2 times or less the plate thickness dimension t1 of the flange-facing plate portion 101, and in the present embodiment, the plate thickness dimension t3 of the connection plate portion 103 is the same as the plate thickness dimension t2 of the web-facing plate portion 102.

[0029] (Joint member) Next, the joint member 1 will be described in detail. Returning to FIG. 2, the joint member 1 is joined to the column 202 by butt welding so as to abut against the column 202 in the longitudinal direction of the column 202, that is, the second direction D2. The joint member 1 is made of steel in this embodiment.

[0030] Specifically, as shown in FIG. 5, the joint member 1 includes a base body 2 that covers the end face 202a and the end opening 202x of the column 202, an angle nut 3 provided on the base body 2, a nut rotation restricting body 4 that restricts the rotation of the angle nut 3 on the base body 2, and a nut holding body 5 that holds the angle nut 3 on the base body 2.

[0031] (Base body) The base body 2 is plate-shaped. As shown in FIGS. 6 and 7, in this embodiment, the base body 2 is square (square) in a top view seen from its own plate thickness direction (hereinafter, the base body plate thickness direction) that coincides with the second direction D2. And the outer dimensions of the base body 2 in a top view substantially coincide (or completely coincide) with the outer dimensions of the column 202 seen from the longitudinal direction, that is, the second direction D2 (see FIG. 1). An annular end face facing surface 20 facing one side in the plate thickness direction of the base body 2 and a cover surface 21 disposed inside the end face facing surface 20 and facing one side in the base body plate thickness direction are formed on the base body 2.

[0032] (End face facing surface and cover surface) Returning to FIG. 2, the end face facing surface 20 faces the end face 202a of the column 202 and is joined to the end face 202a by butt welding. The cover surface 21 is a surface that covers the end opening 202x in a state where the end face facing surface 20 faces the end face 202a. Thereby, the base body 2 functions as a lid for closing the end opening 202x of the column 202.

[0033] And the end face facing surface 20 is a tapered surface that slopes toward the other side in the base body plate thickness direction (second direction D2) as it moves away from the cover surface 21 in the surface direction of the cover surface 21 along the first direction D1 and the third direction D3 (hereinafter referred to as the base body surface direction). On the other hand, the end face 202a of the column 202 to which the end face facing surface 20 is welded is not chamfered and is a flat surface that spreads on a horizontal plane orthogonal to the longitudinal direction of the column 202. Therefore, the groove shape of the butt welding between the end face facing surface 20 and the end face 202a is a so-called "L shape".

[0034] Also, since the end face facing surface 20 is located on the other side of the base body plate thickness direction D1 with respect to the cover surface 21, an annular stepped surface 22 is formed on the base body 2. The stepped surface 22 faces the base body surface direction and is arranged in the structural material internal space S, which is a space surrounded by the base body 2 and the column 202, in a state where the end face facing surface 20 faces the end face 202a (hereinafter referred to as the installation state), and is configured to face the inner wall surface 202b of the column 202.

[0035] (Through hole) Also, as shown in FIG. 7, the base body 2 is formed with a through hole 23 that penetrates the base body 2 itself in the base body plate thickness direction (second direction D2) on the cover surface 21. That is, the through hole 23 is formed between the flange facing surface 24 facing the surface 201c of the flange 201a of the beam 201 facing the other side in the base body plate thickness direction (second direction D2) and the cover surface 21 (see FIG. 2).

[0036] In the present embodiment, the through holes 23 are respectively arranged in the vicinity of the four corners 2a of the base body 2 corresponding to the arrangement positions of the square nuts 3, which will be described in detail later. Therefore, four through holes 23 are provided in the base body 2.

[0037] (Square nut) Returning to FIGS. 5 and 6, the square nut 3 is disposed on one side in the base body plate thickness direction (second direction D2) in the base body 2, that is, on the cover surface 21, and is positioned in the structural material internal space S (see FIG. 2) of the column 202 in the above installation state.

[0038] Further, the square nuts 3 are respectively disposed in the vicinity of the four corners 2a of the base body 2 at positions corresponding to the through holes 23 (see FIG. 7) of the base body 2. The inner diameter of the female screw hole 3a of each square nut 3 is smaller than that of the through hole 23 of the base body 2, and the square nut 3 is provided such that the entire female screw hole 3a is disposed inside the through hole 23. A gap is provided between the rotation restricting surface 40, which will be described in detail later, and the square nut 3, and the square nut 3 is in a state where a slight movement (play) in the base body surface direction is allowed. However, the inner diameter of the female screw hole 3a may be set to such a size that the entire female screw hole 3a is disposed inside the through hole 23 regardless of the position to which the square nut 3 moves. That is, the inner diameter of the through hole 23 may be made larger than the inner diameter of the female screw hole 3a by an amount equal to or greater than the maximum gap between the square nut 3 and the rotation restricting surface 40. Further, when the square nut 3 is in a non-contact state with the rotation restricting surface 40, the female screw hole 3a may be disposed coaxially with the through hole 23.

[0039] Furthermore, in the present embodiment, each square nut 3 is a hexagonal nut having a hexagonal shape in a top view seen from one side in the base body plate thickness direction (second direction D2). As shown in FIG. 6, along the circumferential direction of the square nut 3 itself (hereinafter, nut circumferential direction), a first side surface 31, a second side surface 32, a third side surface 33, a fourth side surface 34, a fifth side surface 35, and a sixth side surface 36 are sequentially provided in a counterclockwise direction in the above top view. The first side surface 31 and the fourth side surface 34 of the square nut 3 are located on the diagonal line 2x connecting the vertex 2p of the corner 2a in the base body 2 and the center 2o of the base body 2 in the above top view. The first side surface 31 is disposed at the innermost in the radial direction of the virtual circle C with respect to the center 2o of the base body 2 when the base body 2 is viewed from above, and the fourth side surface 34 is disposed at the outermost in the radial direction of the virtual circle C.

[0040] (Nut rotation restricting body) The nut rotation restricting body 4 is plate-shaped and joined to one side in the base body plate thickness direction (second direction D2) with respect to the cover surface 21 of the base body 2. The nut rotation restricting body 4 is provided with a rotation restricting surface 40 for restricting the rotation of each corner nut 3. Therefore, each rotation restricting surface 40 is provided on one side in the base body plate thickness direction (second direction D2) in the base body 2, is located in the structural material internal space S in the column 202 (see FIG. 2), and faces the first side surface 31, the second side surface 32, the third side surface 33, the fifth side surface 35, and the sixth side surface 36 of the corner nut 3 with a gap in the base body surface direction, and engages when the corner nut 3 rotates to restrict the rotation of the corner nut 3. This gap is, for example, at least 0.3 mm and at most 1.2 mm, preferably at most 0.7 mm, in the facing direction between each side surface of the corner nut 3 and the rotation restricting surface 40, and the maximum movement amount of the corner nut 3 in the base body surface direction is at least 0.3 mm and at most 1.2 mm, preferably at most 0.7 mm. In the present embodiment, the rotation restricting surface 40 is the inner peripheral surface of a notch 4x that forms a partial ring shape in the nut rotation restricting body 4 where each corner nut 3 is accommodated.

[0041] Also, a nut notch 4y is formed in the nut rotation restricting body 4. The nut notch 4y extends radially inward of the virtual circle C from the outer peripheral surface of the nut rotation restricting body 4 toward the center 2o of the base body 2 at the central position between adjacent corner nuts 3 in the circumferential direction of the virtual circle C with reference to the center 2o of the base body 2 when the base body 2 is viewed from above in the base body plate thickness direction (second direction D2). A protrusion 5x of the nut holder 5, which will be described in detail later, is arranged in this nut notch 4y. Instead of the nut notch 4y, a through hole in which the protrusion 5x of the nut holder 5 can be arranged may be formed in the nut rotation restricting body 4.

[0042] (Rotation restricting surface) More specifically, each rotation restricting surface 40 faces radially outward of the virtual circle C and has an inner opposing surface 41 that can face the first side surface 31, the second side surface 32, and the sixth side surface 36 of the square nut 3 with a gap therebetween, and an outer opposing surface 42 that faces radially inward of the virtual circle C and can face the third side surface 33 and the fifth side surface 35 of the square nut 3 with a gap therebetween.

[0043] The inner opposing surface 41 has an innermost opposing surface 45 facing the first side surface 31 of the square nut 3, one-side inner opposing surface 46 facing the second side surface 32, and the other-side inner opposing surface 47 facing the sixth side surface 36. Each of the innermost opposing surface 45, the one-side inner opposing surface 46, and the other-side inner opposing surface 47 is planar. One-side inner opposing surface 46 is connected to one end edge in the nut circumferential direction of the innermost opposing surface 45, and the other-side inner opposing surface 47 is connected to the other end edge in the nut circumferential direction of the innermost opposing surface 45.

[0044] The outer opposing surface 42 has a planar one-side outer opposing surface 48 facing the third side surface 33 of the square nut 3 and a planar other-side outer opposing surface 49 facing the fifth side surface 35. One end edge in the nut circumferential direction of the one-side outer opposing surface 48 is connected to the one-side inner opposing surface 46. One end edge in the nut circumferential direction of the other-side outer opposing surface 49 is connected to the other-side inner opposing surface 47. Therefore, the one-side inner opposing surface 46 is disposed between the one-side outer opposing surface 48 and the innermost opposing surface 45, and the other-side inner opposing surface 47 is disposed between the other-side outer opposing surface 49 and the innermost opposing surface 45.

[0045] On the other hand, one outer opposing surface 48 extends from one end edge connected to the one inner opposing surface 46 to the mid-position of the third side surface 33 in the nut circumferential direction, and faces a partial region of the third side surface 33. Similarly, the other outer opposing surface 49 extends from one end edge connected to the other inner opposing surface 47 to the mid-position of the fifth side surface 35 in the nut circumferential direction, and faces a partial region of the fifth side surface 35. In this embodiment, the one outer opposing surface 48 faces a region in the third side surface 33 that is less than or equal to half in the nut circumferential direction, and the other outer opposing surface 49 faces a region in the fifth side surface 35 that is less than or equal to half in the nut circumferential direction.

[0046] In this way, since the one outer opposing surface 48 faces a partial region of the third side surface 33 and the other outer opposing surface 49 faces a partial region of the fifth side surface 35, the remaining region of the third side surface 33, the remaining region of the fifth side surface 35, and the fourth side surface 34 are exposed to the outside of the base body 2 in the base body surface direction, that is, the radially outer side of the virtual circle C. Therefore, the notch 4x in the nut rotation restricting body 4 opens toward the radially outer side of the virtual circle C.

[0047] Returning to FIG. 2 here, the plate thickness dimension t40 of the nut rotation restricting body 4 is smaller than the plate thickness dimension t20 of the base body 2. As a result, the height dimension (coinciding with t40) of the rotation restricting surface 40 in the base body plate thickness direction (the second direction D2) is smaller than the maximum dimension (coinciding with t20) of the base body 2 in the base body plate thickness direction (the second direction D2). Also, the plate thickness dimension t40 (the height dimension of the rotation restricting surface 40) of the nut rotation restricting body 4 is less than or equal to half of the height dimension of the square nut 3.

[0048] (Nut retainer) As shown in FIGS. 5 and 6, the nut retainer 5 is a plate-shaped member that covers all the square nuts 3 from the base body plate thickness direction (second direction D2). The nut retainer 5 forms a plate thickness direction regulating surface 50 that faces the other side in the base body plate thickness direction (second direction D2) and faces the square nut 3 from the other side. This plate thickness direction regulating surface 50 is provided on one side in the base body plate thickness direction (second direction D2) of the base body 2 and is located in the internal space S of the structural material of the pillar 202 (see FIG. 2). By sandwiching the square nut 3 between the plate thickness direction regulating surface 50 and the cover surface 21 of the base body 2, the movement of the square nut 3 in the base body plate thickness direction (second direction D2) is regulated. A gap of, for example, at least 0.1 mm and at most 1 mm, preferably at most 0.5 mm is formed between the plate thickness direction regulating surface 50 and the square nut 3. In this case, the maximum movement amount of the square nut 3 in the base body plate thickness direction D1 is also at least 0.1 mm and at most 1 mm, preferably at most 0.5 mm.

[0049] Also, in the present embodiment, the nut retainer 5 has a substantially square shape (substantially square shape) in a top view seen from the base body plate thickness direction (second direction D2). Arc-shaped notches 5y are formed at four corners of the nut retainer 5, along a part of the edge of the female screw hole of the square nut 3, with their inner circumferential surfaces extending. In the present embodiment, each notch 5y is along about a quarter of the region of the edge of the female screw hole 3a of the square nut 3 at a position inside the radial direction of the virtual circle C. Therefore, in a top view seen from one side in the base body plate thickness direction (second direction D2), the female screw hole 3a of the square nut 3 is exposed on one side in the base body plate thickness direction (second direction D2). Note that the notch 5y may be formed so that the inner surface of the notch 5y is located outside the female screw hole 3a regardless of the position of the square nut 3 in the base body surface direction.

[0050] Furthermore, the nut holder 5 is joined to the base body 2 between the corner nuts 3 adjacent to each other in the circumferential direction of the virtual circle C. Specifically, the nut holder 5 is formed such that a thin plate-shaped protrusion 5x extends in the base body plate thickness direction (second direction D2) toward the nut rotation restricting body 4 between the corner nuts 3 adjacent to each other in the circumferential direction of the virtual circle C, and the nut holder 5 is fixed to the base body 2 by fitting this protrusion 5x into the nut notch 4y in the nut rotation restricting body 4.

[0051] (First Bolt) Returning to FIG. 2, the first bolt 203 is inserted through the first bolt hole 101a of the flange facing plate portion 101 of the reinforcing member 100, extends from the flange facing plate portion 101 toward the web 201b of the beam 201, penetrates the web 201b, and is screwed into the corner nut 3 through the through hole 23 of the base body 2 in the joint member 1. Thereby, the joint member 1 and the reinforcing member 100 are fastened in a state where the flange 201a of the beam 201 is sandwiched between the joint member 1 and the reinforcing member 100, and the beam 201 and the column 202 are connected via the joint member 1 and the reinforcing member 100.

[0052] (Function and Effect) According to the assembled structural member 200 of the present embodiment described above, in the reinforcing member 100 provided on the beam 201, the plate thickness dimension t2 of the web facing plate portion 102 is smaller than the plate thickness dimension t1 of the flange facing plate portion 101. For this reason, with respect to the flange facing plate portion 101 that receives the load acting from the column 202 to the flange 201a of the beam 201 in the second direction D2, the plate thickness can be increased to ensure strength, while with respect to the web facing plate portion 102 where the load acting from the column 202 is relatively small, the plate thickness can be reduced to suppress the weight of the reinforcing member 100. Therefore, in the reinforcing member 100, it is possible to optimize the structure while ensuring the required strength.

[0053] Furthermore, in the reinforcing member 100, the plate thickness dimension t3 of the connection plate portion 103 is smaller than the plate thickness dimension t1 of the flange facing plate portion 101. For this reason, regarding the connection plate portion 103 where the load acting from the column 202 is relatively small, the plate thickness can be reduced to suppress the weight of the reinforcing member 100. Further, for example, when high-tension bolts are used for the first bolt 203 and the second bolt 204, the two-sided width of the bolt head becomes larger than that of a normal bolt. However, by suppressing the plate thickness of the connection plate portion 103, even if such high-tension bolts are adopted, interference of the bolt head with the connection plate portion 103 can be prevented. Also, by suppressing the plate thickness of the connection plate portion 103, even if the dimension in the first direction D1 in the flange facing plate portion 101 and the web facing plate portion 102 is suppressed to be small, a region for forming the first bolt hole 101a and the second bolt hole 102a can be sufficiently secured to such an extent that sufficient strength can be ensured. In other words, while ensuring strength, the dimension of the reinforcing member 100 in the first direction D1 can be suppressed to be small, and weight reduction due to miniaturization of the reinforcing member 100 becomes possible.

[0054] Also, if the reinforcing member 100 is formed by welding a plurality of plates together, weld beads will be formed. In this case, in order to avoid interference of the first bolt 203 and the second bolt 204 with the weld beads, the dimensions of the reinforcing member 100 have to be increased. However, in the present embodiment, since the reinforcing member 100 is a casting, there are no weld beads, and the reinforcing member 100 can be made compact.

[0055] Also, in the present embodiment, the connection plate portion 103 of the reinforcing member 100 is provided at a position offset in the first direction D1 in order to connect the H-shaped steel beam 210 to the connection plate portion 103. However, even in such a case, by suppressing the plate thickness of the connection plate portion 103 or making the reinforcing member 100 a casting, even if the size of the reinforcing member 100 is reduced, a region for forming the first bolt hole 101a and the second bolt hole 102a can be secured to such an extent that sufficient strength can be ensured, and an installation space for the first bolt 203 and the second bolt 204 can be sufficiently secured.

[0056] In addition, in the assembled structural member 200 of the present embodiment, the joint member 1 is provided. By connecting the beam 201 and the column 202 so that the flange 201a of the beam 201 is sandwiched between the joint member 1 and the reinforcing member 100, the base body 2 of the joint member 1 and the flange opposing plate portion 101 of the reinforcing member 100 can improve the strength of the flange 201a in the beam 201. Therefore, the deformation of the flange 201a when a load acts in the second direction D2 can be suppressed.

[0057] Then, the base body 2 of the joint member 1 is disposed to face the end face 202a and the end opening 202x of the column 202, and by joining the base body 2 to the end face 202a, the joint member 1 can be easily provided on the column 202, and a jointed structural member in which the column 202 and the joint member 1 are integrated can be easily configured. That is, the joint member 1 can be brought into contact with the column 202 in the longitudinal direction of the column 202 and welded, and the positioning of the joint member 1 at the time of joining becomes very easy. Therefore, the workability can be improved when connecting the column 202 and the beam 201 via the joint member 1. Furthermore, since the base body 2 of the column 202 and the joint member 1 are integrated, the strength of the column 202 can be improved by the base body 2. In addition, since the end face facing surface 20 of the base body 2 is a tapered surface, the end face facing surface 20 can be firmly welded to the end face 202a of the column 202 without performing beveling on the side of the end face 202a of the column 202. That is, by making the end face facing surface 20 a tapered surface in advance, the labor of beveling the column 202 when butting and welding the joint member 1 to the column 202 can be saved, and the work process at the construction site can be shortened.

[0058] An annular stepped surface 22 facing the inner wall surface 202b of the column 202 is formed on the base body 2. For this reason, a part of the base body 2 can be inserted into the structural member internal space S so that the end face facing surface 20 of the base body 2 faces the end face 202a of the column 202, and the positioning of the joint member 1 becomes even easier.

[0059] Furthermore, when the base body 2 of the joint member 1 is joined to the column 202, the square nut 3 is disposed in the structural material internal space S inside the column 202, and the end opening 202x of the column 202 can be closed by the base body 2. Therefore, after the joint member 1 is joined to the column 202, the square nut 3 is not exposed to the outside and is not exposed to the outside air, and corrosion of the square nut 3 can be suppressed.

[0060] In addition, since the base body 2 of the structural material joint member 1 has a square shape in top view and the square nuts 3 are respectively disposed at the corners 2a of the base body 2, the distance between the square nuts 3 can be maximally ensured, and the strength against bending moments and the like generated between the column 202 and the beam 201 can be sufficiently ensured.

[0061] Also, by forming the rotation restricting surface 40 for restricting the rotation of the square nut 3, even if the operator cannot access the square nut 3 because the square nut 3 is disposed in the structural material internal space S, the first bolt 203 can be surely screwed into the square nut 3.

[0062] In addition, since the rotation restricting surface 40 faces the side surface of the square nut 3 with a gap, the movement of the square nut 3 in the direction of the base body surface can be slightly allowed. Therefore, dimensional tolerances of the column 202 and the beam 201 can be absorbed, and even if the operator cannot access the square nut 3 because the square nut 3 is disposed in the structural material internal space S, the first bolt 203 can be surely screwed into the square nut 3.

[0063] In this embodiment, by forming the rotation restricting surface 40 on the nut rotation restricting body 4, the rotation restricting surface 40 can be easily provided with respect to the base body 2.

[0064] Furthermore, since the rotation restricting surface 40 has an inner opposing surface 41 and an outer opposing surface 42, it is possible to restrict the movement of the square nut 3 in the radial direction of the virtual circle C, and prevent the square nut 3 from radially dropping off from the base body 2. Particularly in the present embodiment, since the inner opposing surface 41 has an innermost opposing surface 45, one-side inner opposing surface 46, and the other-side inner opposing surface 47, not only in the radially inner side but also the movement of the square nut 3 in the circumferential direction of the virtual circle C can be restricted.

[0065] Also, the outer opposing surface 42 has an one-side outer opposing surface 48 and the other-side outer opposing surface 49, and the one-side outer opposing surface 48 opposes a partial region of the third side surface 33 of the square nut 3, and the other-side outer opposing surface 49 opposes a partial region of the fifth side surface 35 of the square nut 3. Thus, the remaining regions of the third side surface 33, the remaining regions of the fifth side surface 35, and the fourth side surface 34 are exposed outside the virtual circle C in the radial direction. Therefore, the square nut 3 can be arranged as close as possible to the corner 2a of the base body 2, the distance between the square nuts 3 can be set, and sufficient strength against the bending moment etc. can be ensured.

[0066] Also, since the plate thickness dimension t40 of the nut rotation restricting body 4 is smaller than the plate thickness dimension t20 of the base body 2, the weight and cost of the nut rotation restricting body 4 can be suppressed. Even if the plate thickness dimension t20 of the base body 2 is thus reduced, since no large load acts on the nut rotation restricting body 4 after fastening the first bolt 203, no strength problem occurs.

[0067] Also, by providing the plate thickness direction restricting surface 50, even if the square nut 3 is arranged below the base body 2, the square nut 3 will not drop off. In the present embodiment, by forming the plate thickness direction restricting surface 50 on the nut holding body 5, the plate thickness direction restricting surface 50 can be easily provided on the base body 2.

[0068] Also, since the nut holder 5 is fitted into the nut rotation restrictor 4 between the corner nuts 3 adjacent to each other in the circumferential direction of the virtual circle C and fixed to the base body 2, even if the corner nut 3 is pressed to one side in the base body plate thickness direction (second direction D2) when the first bolt 203 is screwed into the corner nut 3, it is possible to suppress the nut holder 5 from being pushed by the corner nut 3 and being bent and deformed in the base body plate thickness direction D1. Therefore, it is possible to avoid the corner nut 3 from falling off and to securely hold the corner nut 3 on the base body 2.

[0069] As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, each configuration and their combinations in the above embodiments are merely examples, and additions, omissions, substitutions, and other modifications of the configuration are possible without departing from the spirit of the present invention. Further, the present invention is not limited by the embodiments and is limited only by the claims.

[0070] The shape of the reinforcing member 2 is not limited to the above case. For example, a reinforcing member 100A as shown in FIG. 8 may be adopted. As shown in FIGS. 9, 10(a), and 10(b), in the connection plate portion 103A of the reinforcing member 100A, the protruding dimension in the third direction D3 from the web facing plate portion 102 may be substantially the same as that of the pair of flange facing plate portions 101. That is, the connection plate portion 103A does not protrude outward of the web 201b in the third direction D3, and is provided at the central position in the first direction D1 of the pair of flange facing plate portions 101 and the web facing plate portion 102. Further, the above-described beam 210 (see FIG. 1) is not provided for the connection plate portion 103A. Each dimension of the reinforcing member 100A is the same as that of the reinforcing member 100 described above, except for the protruding dimension in the third direction D3 from the web facing plate portion 102 of the connection plate portion 103A.

[0071] Further, the reinforcing member 100 (100A) does not necessarily have to have the connection plate portion 103 (103A). The flange opposing plate portion 101 of the reinforcing member 100 (100A) may be fixed to the flange 201a of the beam 201 by welding instead of the first bolt 203. Similarly, the web opposing plate portion 102 of the reinforcing member 100 (100A) may be fixed to the web 201b of the beam 201 by welding instead of the second bolt 204.

[0072] Also, the material and shape of the column 202 and the joint member 1 are not limited to the above cases. For example, the joint member 1 may be applied to a wooden column instead of the column 202. In this case, the base body 2 of the joint member 1 may be fixed to the column 202 by bolts or the like instead of welding. Also, not all of the joint member 1 has to be made of steel. When a steel column 202 is adopted, it is sufficient that at least the base body 2 is made of steel (or metal). When the joint member 1 is not welded to the column 202, the entire base body 2 and joint member 1 may be made of a non-metal.

[0073] Also, the rotation restricting surface 40 and the plate thickness direction restricting surface 50 may be formed directly on the base body 2. Also, the nut retainer 5 may be provided for each square nut 3, and the fixing position of the nut retainer 5 to the base body 2 is not particularly limited.

[0074] Also, the positions of the side surfaces 31 to 36 of the square nut 3 on the base body 2 and the shape of the rotation restricting surface 40 are not particularly limited, but the positions of the side surfaces 31 to 36 of the square nut 3 and the rotation restricting surface 40 are preferably set so that at least the square nut 3 is restricted from moving in the radial direction and circumferential direction of the virtual circle C.

[0075] Also, the base body 2 and the nut rotation restricting body 4 may be manufactured by casting. At this time, the base body 2 and the nut rotation restricting body 4 may be manufactured as an integral member.

Industrial Applicability

[0076] According to the reinforcing member for structural materials of the present invention, etc., while ensuring the required strength, the optimization of the structure can be achieved.

Explanation of reference numerals

[0077] 1... Joint member for structural materials 2... Base body 2a... Corner 2o... Center 2p... Vertex 2x... Diagonal 3... Angle nut 4... Nut rotation restricting body 4x... Notch 5... Nut holding body 20... End face facing surface 21... Cover surface 22... Step surface 23... Through hole 24... Flange facing surface 31... First side surface 32... Second side surface 33... Third side surface 34... Fourth side surface 34... Fifth side surface 35... Fifth side surface 36... Sixth side surface 40... Rotation restricting surface 41... Inner facing surface 42... Outer facing surface 45... Innermost facing surface 46... One - side inner facing surface 47... The other - side inner facing surface 48... One - side outer facing surface 49... The other - side outer facing surface 50... Plate - thickness direction restricting surface 100, 100A... Reinforcing member for structural materials 101... Flange facing plate part 101a... First bolt hole 102... Web facing plate part 102a... Second bolt hole 103, 103A... Connection plate part 103a... Third bolt hole 200... Assembled structural material 201... Beam (first structural material) 201a… Flange 201b… Web 202… Column (second structural member) 202a… End face 202b… Inner wall surface 202x… End opening 203… First bolt 204… Second bolt 205… Third bolt 210… Beam (third structural member) 210b… Web S… Internal space of the structural member C… Virtual circle

Claims

1. A reinforcing member for a structural member used when connecting a second structural member extending in a second direction intersecting the first direction, which is disposed between a pair of flanges in a first structural member having an H-shaped cross section and extending in the first direction, to at least one of the flanges, comprising: a pair of flange opposing plate portions respectively disposed opposite to each of the flanges and disposed at positions where at least a part thereof overlaps the second structural member when viewed from the second direction; a web opposing plate portion connecting the pair of flange opposing plate portions and disposed opposite to the web of the first structural member; and comprising: a reinforcing member for a structural member, wherein the plate thickness dimension of the web opposing plate portion is smaller than each of the pair of flange opposing plate portions.

2. further comprising a connecting plate portion standing upright in a third direction intersecting the first direction and the second direction from the web opposing plate portion and connecting the pair of flange opposing plate portions; The reinforcing member for a structural member according to claim 1, wherein the plate thickness dimension of the connecting plate portion is smaller than each of the pair of flange opposing plate portions.

3. The reinforcing member for a structural member according to claim 2, wherein at least one of the pair of flange opposing plate portions is fastened to the second structural member with the flange interposed therebetween by a first bolt inserted through a first bolt hole penetrating the flange opposing plate portion in the plate thickness direction.

4. The reinforcing member for a structural member according to claim 2, wherein the web opposing plate portion is fixed to the web by a second bolt inserted through a second bolt hole penetrating the web opposing plate portion in the plate thickness direction.

5. The structural member reinforcing member according to claim 3 or 4, wherein the pair of flange opposing plate portions, the web opposing plate portion, and the connecting plate portion are integrally formed by casting.

6. The connecting plate portion has a larger protruding dimension in the third direction from the web opposing plate portion than the pair of flange opposing plate portions, and is provided at a position offset to one side in the first direction with respect to the central position in the first direction of the pair of flange opposing plate portions and the web opposing plate portion, The reinforcing member for a structural member according to claim 3 or 4, wherein the connecting plate portion is disposed opposite to a surface facing one side in the first direction of the web of a third structural member having an H-shaped cross section and extending in the third direction.

7. The reinforcing member for a structural member according to claim 3; the first structural member provided with the reinforcing member for a structural member; An end face opening is formed on an end face facing the second direction to form a cylindrical shape, and the second structural member connected to the first structural member by the structural member reinforcing member, The first bolt inserted through the first bolt hole in the reinforcing member for the structural member, A joint member for a structural member provided on the end face of the second structural member, which connects the second structural member and the first structural member by fastening the reinforcing member for the structural member to itself with the first bolt, Comprising, The joint member for the structural member, A base body having a plate shape and covering the end face and the end opening of the second structural member, An annular end face facing surface formed on the base body, facing one side in its own plate thickness direction (hereinafter referred to as the base body plate thickness direction) that coincides with the second direction, facing the end face of the second structural member and joined to the end face, A cover surface formed on the base body, disposed inside the end face facing surface, and covering the end opening in a state where the end face facing surface faces the end face, A through hole formed in the base body and penetrating the base body in the base body plate thickness direction on the cover surface, A corner nut disposed on one side in the base body plate thickness direction in the base body and located in the internal space of the structural member surrounded by the base body and the first structural member, A rotation restricting surface provided on one side in the base body plate thickness direction in the base body, located in the internal space of the structural member, facing the side surface of the corner nut with a gap in the surface direction of the cover surface (hereinafter referred to as the base body surface direction), and engaging when the corner nut rotates to restrict the rotation, A plate thickness direction restricting surface provided on one side in the base body plate thickness direction in the base body, located in the internal space of the structural member, facing the corner nut from the opposite side of the base body in the base body plate thickness direction, sandwiching the corner nut between the cover surface and itself, and restricting the movement of the corner nut in the base body plate thickness direction, Having, The first bolt inserted through the first bolt hole of the flange facing plate portion in the reinforcing member for the structural member is screwed with the corner nut through the through hole of the base body, so that the flange in the first structural member is sandwiched in the second direction by the reinforcing member for the structural member and the joint member for the structural member, and the first structural member and the second structural member are connected in an assembled structural member.

8. The base body has a square shape in a top view seen from the base body plate thickness direction, The corner nuts are respectively arranged near four corners of the base body, The rotation restricting surface is provided for each corner nut, Each of the rotation restricting surfaces, faces outward in the radial direction of a virtual circle centered on the center of the base body when the base body is viewed from above, and has an inner facing surface that can face the side surface of the corner nut with a gap therebetween, faces inward in the radial direction of the virtual circle, and has an outer facing surface that can face the side surface of the corner nut with a gap therebetween, The assembled structural material according to claim 7 having the same.

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