JP7503277B1 - Assembly structural materials - Google Patents

Abstract

The present invention provides a reinforcing member for structural materials that can optimize the structure while ensuring the required strength.
SOLUTION
A structural reinforcement member 100 is arranged between a pair of flanges 201a of a beam 201 having an H-shaped cross section and extending in a first direction D1, and is used when connecting a column 202 extending in a second direction D2 intersecting the first direction D1 to at least one of the flanges 201a, the structural reinforcement member 100 comprising a pair of flange opposing plate portions 101 each arranged opposite to each of the flanges 201a and arranged in a position where at least a portion of the flange opposing plate portions 101 overlaps the column 202 when viewed from the second direction D2, and a web opposing plate portion 102 connecting the pair of flange opposing plate portions 101 to each other and arranged opposite a web 201b of the beam 201, the plate thickness dimension of the web opposing plate portion 102 being smaller than that of each of the pair of flange opposing plate portions 101.
[Selected figure] Figure 2

Description

The present invention relates to an assembled structural material having a structural reinforcing member that connects structural materials together.

Conventionally, in architectural construction, a second structural member (column or beam) may be connected to a beam as a first structural member in a direction perpendicular to the beam. In such a structure, a reinforcing member (reinforcing metal fitting) such as that described in Patent Document 1 is provided between the flanges of the first structural member. Such reinforcing metal fittings are used to prevent deformation of the structural member.

Japanese Patent No. 3503601

This type of reinforcing member is generally formed by bending steel plate, so the plate thickness at each part of the reinforcing member is often uniform. However, the strength required of the reinforcing member varies depending on the part, which results in excessive specifications and leads to an increase in the weight of the reinforcing member.

Therefore, the present invention provides an assembly structural material that ensures the required strength while optimizing the structure.

According to one aspect of the present invention, there is provided an assembled structural member comprising: a first structural member having an H-shaped cross section and extending in a first direction; a second structural member extending in a second direction intersecting the first direction and having an end opening formed on an end surface facing the second direction, forming a cylindrical shape; a structural member joint member provided on the end surface of the second structural member; a structural member reinforcing member disposed between a pair of flanges of the first structural member; and a first bolt that is inserted through the structural member reinforcing member and fastens the structural member reinforcing member to the structural member joint member, thereby connecting the second structural member to at least one of the flanges of the first structural member, wherein the structural member reinforcing members are disposed opposite each other so that their surfaces are in contact with the respective flanges, and at least a portion of the structural member is in contact with the respective flanges as viewed from the second direction. the first structural member has a pair of flange opposing plate portions arranged at a position overlapping the second structural member, and a web opposing plate portion connecting the pair of flange opposing plate portions together and arranged opposite to the web of the first structural member such that its surface is in contact with the web of the first structural member, the plate thickness dimension of the web opposing plate portion being smaller than the plate thickness dimensions of each of the pair of flange opposing plate portions, and at least one of the pair of flange opposing plate portions has a first bolt hole formed therethrough in the plate thickness direction of the flange opposing plate portion and through which the first bolt is inserted, the structural member has a plate shape and comprises a base body covering the end face and the end opening of the second structural member, and a base body formed on the base body and facing one side in its plate thickness direction (hereinafter, base body plate thickness direction) that coincides with the second direction, facing the end face of the second structural member and contacting the end face, a cover surface formed on the base body, disposed inside the end face opposing surface and covering the end opening with the end face opposing surface facing the end face; a through hole formed on the base body and penetrating the base body in the base body thickness direction at the cover surface; an angular nut disposed on the one side of the base body in the base body thickness direction and positioned in a structural material internal space surrounded by the base body and the second structural material; a rotation restricting surface provided on the one side of the base body in the base body thickness direction, positioned in the structural material internal space, facing a side of the angular nut with a gap in a surface direction of the cover surface (hereinafter, base body surface direction), and engaging with the angular nut when it rotates to restrict the rotation; and a thickness direction regulating surface that is located in the internal space of the structural material, faces the square nut from the opposite side to the base body in the base body thickness direction, clamps the square nut between the cover surface and itself, and regulates movement of the square nut in the base body thickness direction, wherein the height dimension of the rotation regulating surface in the base body thickness direction is smaller than the maximum dimension of the base body in the base body thickness direction, and the first bolt inserted into the first bolt hole of the flange facing plate portion of the structural material reinforcement member is screwed into the square nut through the through hole of the base body, thereby connecting the first structural material and the second structural material with the flange in the first structural material being clamped in the second direction by the structural material reinforcement member and the structural material joint member.

The above -mentioned assembly structural material makes it possible to optimize the structure while ensuring the required strength.

1 is a perspective view showing an assembly structure according to an embodiment of the present invention; FIG. 2 is a front view of the assembled structural member as seen from a third direction, which is the horizontal direction, with a portion of the column broken away. 3 is a side view of a reinforcing member in the assembled structural material as viewed from a first direction which is the horizontal direction. FIG. 4A is a cross-sectional view taken along line AA in FIG. 3, and FIG. 4B is a view taken along arrow B in FIG. FIG. 2 is a perspective view of the joint member for a structural material in the assembled structural material, as viewed from the square nut side. FIG. 2 is a plan view of the joint member for a structural material in the assembled structural material, as viewed from the square nut side. FIG. 1 is a plan view of a joint member for a structural member in the assembled structural member, as viewed from a side where no square nut is provided. FIG. 11 is a perspective view showing an assembly structure according to a modified example of the embodiment of the present invention. FIG. 11 is a side view of the reinforcing member of the assembled structural material according to the modified example, as viewed from the horizontal direction. 10A is a cross-sectional view taken along the line CC in FIG. 9, and FIG. 10B is a view taken along the arrow D in FIG.

(overall structure)
The assembled structural material 200 is, for example, a structural material used in architectural structures, and comprises a beam 201 which is a first structural material extending in a first direction (horizontal direction) D1 as shown in FIG. 1 , a column 202 which is a second structural material extending in a second direction (vertical direction) D2, a structural material reinforcement member (hereinafter simply referred to as a reinforcing member) 100 provided on the beam 201, a structural material joint member (hereinafter simply referred to as a joint member) 1 provided on the column 202, and a first bolt 203 which connects the beam 201 and the column 202 via the reinforcement member 100 and the joint member 1.

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

(Column)
The column 202 is cylindrical, and has an end opening 202x formed on an end surface 202a facing the longitudinal direction, i.e., the second direction D2. The column 202 is a rectangular steel pipe column having a rectangular (square) cross section perpendicular to the longitudinal direction. In this embodiment, the longitudinal direction of the column 202 coincides with the vertical direction, and the end openings 202x are formed on the upper end surface and the lower end surface of the column 202. 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 this embodiment, the columns 202 are connected to both the upper and lower sides of one beam 201, but the present invention is not limited to this structure, and it is sufficient that the column 202 is connected to at least one side of the beam 201.

(Reinforcing member)
Next, a detailed description will be given of the reinforcing member 100. The reinforcing members 100 are disposed on both sides of the web 201b of the beam 201, one on each side.

In this embodiment, each reinforcing member 100 is made of steel and is a casting formed as a single unit by casting. Specifically, as shown in FIG. 2, the reinforcing member 100 includes flange facing plate portions 101 that are disposed opposite each flange 201a of the beam 201, a web facing plate portion 102 that connects the pair of flange facing plate portions 101 to each other and is disposed opposite the web 201b of the beam 201, and a connecting plate portion 103 that connects the pair of flange facing plate portions 101 to each other. Note that the reinforcing member 100 in this embodiment is disposed in a position where it is substantially entirely overlapped with the column 202 when viewed from the second direction D2, but it is sufficient that the reinforcing member 100 is disposed so that at least a portion of the reinforcing member 100 overlaps with the column 202.

(Flange facing plate)
Each flange facing plate portion 101 is disposed so that its surface contacts the flange 201a on the corresponding side of the beam 201 from the inside. Note that the "inside" of the flange 201a here means the side of the area sandwiched between the pair of flanges 201a. Each flange facing plate portion 101 is formed with a first bolt hole 101a penetrating the flange facing plate portion 101 in the plate thickness direction, i.e., in the second direction D2. As shown in Figures 3, 4(a) and 4(b), a pair of first bolt holes 101a are formed in each flange facing plate portion 101 with a gap between them in the first direction D1.

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

(Web facing plate portion)
The web facing plate portion 102 is disposed so that its surface is in contact with the web 201b of the beam 201. 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, the pair of flange facing plate portions 101 stand upright from the web facing plate portion 102 on one side in a third direction D3 intersecting (perpendicular to) the first direction D1 and the second direction D2.

Each web-facing plate portion 102 is formed with a second bolt hole 102a penetrating the plate in the thickness direction, i.e., the third direction D3. 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, for a total of four bolt holes. The web-facing plate portion 102 is fixed to the web 201b by a second bolt 204 (see FIG. 2) that is inserted into the second bolt hole 102a. In this embodiment, the web-facing plate portions 102 of the two reinforcing members 100 arranged on both sides of the web 201b are fixed to each other with the web 201b sandwiched between them by the second bolt 204 and a nut (not shown) that is screwed onto the second bolt 204. In addition to being fixed by the second bolt 204, the web-facing plate portion 102 may be fixed to the web 201b by welding.

The web facing plate portion 102 has a smaller plate thickness than the pair of flange facing plate portions 101, and the plate thickness t2 of the web facing plate portion 102 is, for example, 4.5 mm or more and 6.0 mm or less. In other words, the plate thickness t2 of the web facing plate portion 102 is 3/8 times or more and 1/2 times or less the plate thickness t1 of the flange facing plate portions 101.

(Connection plate part)
The connecting plate portion 103 is erected from the web facing plate portion 102 in the third direction D3, which is a horizontal direction, and is arranged so that its plate thickness direction coincides with the first direction D1. The connecting plate portion 103 has a larger protruding dimension from the web facing plate portion 102 to one side in the third direction D3 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). Furthermore, the connecting plate portion 103 is formed with a third bolt hole 103a penetrating the connecting plate portion 103 in the plate thickness direction, i.e., in the first direction D1. A pair of the third bolt holes 103a are formed in the connecting plate portion 103 at an interval in the second direction D2. A third bolt 205 (see FIG. 1), which will be described in detail later, is inserted into each of the third bolt holes 103a.

The connecting plate portion 103 is provided at a position offset to one side of the first direction D1 with respect to the center position of the pair of flange facing plate portions 101 and web facing plate portion 102 in the first direction D1. The connecting plate portion 103 is arranged to face the surface of the web 210b of the H-shaped steel beam (third structural member) 210 that extends in the third direction D3 and has an H-shaped cross section, facing one side of the first direction D1, in a state where the connecting plate portion 103 is in contact with the surface (see FIG. 1). The third bolt 205 inserted into the third bolt hole 103a of the connecting plate portion 103 is inserted into the through hole 210x formed in the web 210b of the beam 210 and is fastened to a nut (not shown), thereby connecting the connecting plate portion 103 and the beam 210.

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. In other words, 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 this 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.

(Joint member)
Next, the joint member 1 will be described in detail.
2, the joint member 1 is joined to the column 202 by butt welding in the longitudinal direction of the column 202, i.e., in the second direction D2. The joint member 1 is made of steel in this embodiment.

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 angular nut 3 provided on the base body 2, a nut rotation restricting body 4 that restricts the rotation of the angular nut 3 on the base body 2, and a nut holder 5 that holds the angular nut 3 on the base body 2.

(Base body)
The base body 2 is plate-shaped. As shown in Fig. 6 and Fig. 7, in this embodiment, the base body 2 is rectangular (square) in top view from its own plate thickness direction (hereinafter, base body plate thickness direction) that coincides with the second direction D2. The outer dimensions of the base body 2 when viewed from above are approximately (or completely) the outer dimensions of the column 202 when viewed from the longitudinal direction, i.e., the second direction D2 (see Fig. 1). The base body 2 is formed with an annular end face facing surface 20 facing one side of its plate thickness direction, and a cover surface 21 disposed inside the end face facing surface 20 and facing one side of the base body plate thickness direction.

(End face opposing surface and cover surface)
2, the end surface opposing surface 20 faces the end surface 202a of the column 202 and is joined to the end surface 202a by butt welding. The cover surface 21 is a surface that covers the end opening 202x when the end surface opposing surface 20 faces the end surface 202a. In this way, the base body 2 functions as a lid that closes the end opening 202x of the column 202.

The end face opposing surface 20 is a tapered surface that slopes toward the other side of the base body plate thickness direction (second direction D2) as it moves away from the cover face 21 in the surface direction of the cover face 21 (hereinafter, the base body surface direction) along the first direction D1 and the third direction D3. On the other hand, the end face 202a of the column 202 to which the end face opposing surface 20 is welded is not beveled, but is a flat surface that extends on a horizontal plane perpendicular to the longitudinal direction of the column 202. Therefore, the bevel shape of the butt welding between the end face opposing surface 20 and the end face 202a is what is known as a "R-shape."

In addition, the end face opposing surface 20 is located on the other side of the base body plate thickness direction D1 relative to the cover surface 21, so that an annular step surface 22 is formed on the base body 2. The step surface 22 faces the base body surface direction and is disposed in the structural material internal space S, which is the space surrounded by the base body 2 and the pillar 202, with the end face opposing surface 20 facing the end face 202a (hereinafter, the installed state), and faces the inner wall surface 202b of the pillar 202.

(Through hole)
7, the base body 2 has a through hole 23 formed in the cover surface 21, the through hole 23 penetrating the base body 2 itself in the base body thickness direction (second direction D2). That is, the through hole 23 is formed between the cover surface 21 and a flange facing surface 24 facing the other side of the base body thickness direction (second direction D2) and opposed to the surface 201c of the flange 201a of the beam 201 (see FIG. 2).

In this embodiment, the through holes 23 are arranged near the four corners 2a of the base body 2, corresponding to the 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.

(Square nut)
Returning to Figures 5 and 6, the square nut 3 is arranged on one side of the base body 2 in the base body plate thickness direction (second direction D2), i.e., on the cover surface 21, and is positioned in the structural material internal space S (see Figure 2) in the column 202 in the above-mentioned installed state.

The square nuts 3 are disposed near 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 female screw hole 3a of each square nut 3 has an inner diameter smaller than that of the through hole 23 of the base body 2, and the square nuts 3 are disposed such that the entire female screw hole 3a of each square nut 3 is disposed inside the through hole 23.
A gap is provided between the rotation restriction surface 40, which will be described in detail later, and the square nut 3, and the square nut 3 is allowed to move (have play) slightly in the direction of the base body surface, but the inner diameter of the female screw hole 3a should be set to a size such that the entire female screw hole 3a is located inside the through hole 23 no matter where the square nut 3 moves to. In other words, the inner diameter of the through hole 23 should be larger than the inner diameter of the female screw hole 3a and be equal to or larger than the maximum gap between the square nut 3 and the rotation restriction surface 40. In addition, when the square nut 3 is not in contact with the rotation restriction surface 40, the female screw hole 3a should be located coaxially with the through hole 23.

In this embodiment, each square nut 3 is a hexagonal nut having a hexagonal shape when viewed from above from one side of the base body plate thickness direction (second direction D2), and has a first side 31, a second side 32, a third side 33, a fourth side 34, a fifth side 35, and a sixth side 36 in the circumferential direction of the square nut 3 itself (hereinafter, the nut circumferential direction) in the counterclockwise direction when viewed from above, as shown in FIG. 6. The first side 31 and the fourth side 34 of the square nut 3 are located on a diagonal line 2x connecting the apex 2p of the corner portion 2a of the base body 2 and the center 2o of the base body 2 when viewed from above. The first side 31 is located at the innermost position in the radial direction of a virtual circle C based on the center 2o of the base body 2 when viewed from above, and the fourth side 34 is located at the outermost position in the radial direction of the virtual circle C.

(Nut rotation restrictor)
The nut rotation restricting body 4 is plate-shaped and is joined to one side of the base body plate thickness direction (second direction D2) relative 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 each square nut 3, which restricts the rotation of the square nut 3. Thus, each rotation restricting surface 40 is provided on one side of 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 square nut 3 with a gap in the base body surface direction, and engages with the square nut 3 when it rotates to restrict the rotation of the square nut 3. The gap is, for example, at most 0.3 mm to 1.2 mm, preferably 0.7 mm or less, in the opposing direction between each side surface of the square nut 3 and the rotation restricting surface 40, and the maximum movement amount of the square nut 3 toward the base body surface is 0.3 mm to 1.2 mm, preferably 0.7 mm or less. In this embodiment, the rotation restricting surface 40 is the inner peripheral surface of a partially annular cutout 4x in the nut rotation restricting body 4 in which each square nut 3 is housed.

The nut rotation restricting body 4 is also formed with an inter-nut notch 4y. The inter-nut notch 4y extends radially inward from the outer circumferential surface of the nut rotation restricting body 4 toward the center 2o of the base body 2 at the central position between adjacent square nuts 3 in the circumferential direction of the imaginary circle C based on 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 inter-nut notch 4y. Note that instead of the inter-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.

(Rotation restriction surface)
More specifically, each rotation limiting surface 40 has an inner opposing surface 41 that faces radially outward from the imaginary circle C and 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 from the imaginary 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.

The inner opposing surface 41 has an innermost opposing surface 45 that faces the first side surface 31 of the square nut 3, a one-side inner opposing surface 46 that faces the second side surface 32, and an other-side inner opposing surface 47 that faces 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 flat. The one-side inner opposing surface 46 is connected to one end edge of the innermost opposing surface 45 in the nut circumferential direction, and the other-side inner opposing surface 47 is connected to the other end edge of the innermost opposing surface 45 in the nut circumferential direction.

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 edge of the one-side outer opposing surface 48 in the nut circumferential direction is connected to the one-side inner opposing surface 46. One edge of the other-side outer opposing surface 49 in the nut circumferential direction is connected to the other-side inner opposing surface 47.
Therefore, one side inner opposing surface 46 is arranged between one side outer opposing surface 48 and the innermost opposing surface 45, and the other side inner opposing surface 47 is arranged between the other side outer opposing surface 49 and the innermost opposing surface 45.

The one-side outer facing surface 48 extends from one end edge connected to the one-side inner facing surface 46 in the nut circumferential direction to a midpoint on the third side surface 33, and faces a portion of the third side surface 33. Similarly, the other-side outer facing surface 49 extends from one end edge connected to the other-side inner facing surface 47 in the nut circumferential direction to a midpoint on the fifth side surface 35, and faces a portion of the fifth side surface 35. In this embodiment, the one-side outer facing surface 48 faces less than half of the area of the third side surface 33 in the nut circumferential direction, and the other-side outer facing surface 49 faces less than half of the area of the fifth side surface 35 in the nut circumferential direction.

In this way, the one-side outer facing surface 48 faces a partial area of the third side surface 33, and the other-side outer facing surface 49 faces a partial area of the fifth side surface 35, so that the remaining areas of the third side surface 33, the remaining areas of the fifth side surface 35, and the fourth side surface 34 are exposed outside the base body 2 in the base body surface direction, that is, radially outward from the imaginary circle C. Therefore, the notch 4x in the nut rotation restricting body 4 opens toward the radially outward direction of the imaginary circle C.

Returning now to FIG. 2, 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, and as a result, the height dimension (corresponding to t40) of the rotation restricting surface 40 in the base body plate thickness direction (second direction D2) is smaller than the maximum dimension (corresponding to t20) of the base body 2 in the base body plate thickness direction (second direction D2). Also, the plate thickness dimension t40 of the nut rotation restricting body 4 (the height dimension of the rotation restricting surface 40) is less than half the height dimension of the square nut 3.

(Nut holder)
As shown in Figures 5 and 6, the nut holder 5 is a plate-like member that covers all the square nuts 3 from the base body thickness direction (second direction D2). The nut holder 5 forms a thickness direction regulating surface 50 facing the other side of the base body thickness direction (second direction D2) and facing the square nuts 3 from the other side, and this thickness direction regulating surface 50 is provided on one side of the base body thickness direction (second direction D2) in the base body 2 and is located in the structural material internal space S of the column 202 (see Figure 2). The square nuts 3 are sandwiched between the thickness direction regulating surface 50 and the cover surface 21 of the base body 2, thereby regulating the movement of the square nuts 3 in the base body thickness direction (second direction D2). In addition, a gap of, for example, a maximum of 0.1 mm or more and 1 mm or less, preferably 0.5 mm or less is formed between the plate thickness direction regulating surface 50 and the square nut 3, and in this case, the maximum movement amount of the square nut 3 in the base body plate thickness direction D1 is also 0.1 mm or more and 1 mm or less, preferably 0.5 mm or less.

In this embodiment, the nut holder 5 has a substantially quadrangular (substantially square) shape when viewed from above in the base body thickness direction (second direction D2). At each of the four corners of the nut holder 5, an arc-shaped cutout 5y is formed, the inner circumferential surface of which extends along a portion of the edge of the female screw hole of the square nut 3. In this embodiment, each cutout 5y is along approximately 1/4 of the edge of the female screw hole 3a of the square nut 3 at a radially inner position of the imaginary circle C. Therefore, in a top view from one side in the base body thickness direction (second direction D2), the female screw hole 3a of the square nut 3 is exposed to one side in the base body thickness direction (second direction D2). It is preferable to form the cutout 5y so that the inner surface of the cutout 5y is located outside the female screw hole 3a regardless of which position the square nut 3 moves to in the base body surface direction.

The nut holder 5 is further joined to the base body 2 between adjacent angular nuts 3 in the circumferential direction of the imaginary circle C. Specifically, the nut holder 5 is formed with a thin plate-like protrusion 5x extending in the base body thickness direction (second direction D2) toward the nut rotation restrictor 4 between adjacent angular nuts 3 in the circumferential direction of the imaginary circle C, and the nut holder 5 is fixed to the base body 2 by fitting the protrusion 5x into the inter-nut notch 4y in the nut rotation restrictor 4.

(First bolt)
2 , the first bolt 203 is inserted into 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 square nut 3 through the through hole 23 of the base body 2 of the joint member 1. As a result, the joint member 1 and the reinforcing member 100 are fastened together with the flange 201a of the beam 201 sandwiched between them, and the beam 201 and the column 202 are connected via the joint member 1 and the reinforcing member 100.

(Action 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. Therefore, the plate thickness of the flange facing plate portion 101 that receives the load acting on the flange 201a of the beam 201 from the column 202 in the second direction D2 can be increased to ensure strength, while the plate thickness of the web facing plate portion 102 that receives a relatively small load from the column 202 can be reduced to reduce the weight of the reinforcing member 100. Therefore, the structure of the reinforcing member 100 can be optimized while ensuring the required strength.

Furthermore, in the reinforcing member 100, the plate thickness dimension t3 of the connecting plate portion 103 is smaller than the plate thickness dimension t1 of the flange facing plate portion 101. Therefore, the plate thickness of the connecting plate portion 103, which is subjected to a relatively small load from the column 202, can be reduced to reduce the weight of the reinforcing member 100. Furthermore, for example, when high tension bolts are used for the first bolt 203 and the second bolt 204, the two-face width of the bolt head is larger than that of a normal bolt, but by reducing the plate thickness of the connecting plate portion 103, interference of the bolt head with the connecting plate portion 103 can be prevented even if such a high tension bolt is adopted. In addition, by reducing the plate thickness of the connecting plate portion 103, even if the dimension in the first direction D1 of the flange facing plate portion 101 and the web facing plate portion 102 is reduced, the area for forming the first bolt hole 101a and the second bolt hole 102a can be sufficiently secured to ensure sufficient strength. In other words, the dimension of the reinforcing member 100 in the first direction D1 can be kept small while still ensuring strength, making it possible to reduce the weight by making the reinforcing member 100 smaller.

If the reinforcing member 100 were to be formed by joining multiple plates by welding, a weld bead would be formed. In this case, the dimensions of the reinforcing member 100 would have to be made large to avoid interference between the first bolt 203 and the second bolt 204 and the weld bead. However, in this embodiment, the reinforcing member 100 is a cast metal, so there are no weld beads, and the reinforcing member 100 can be made compact.

In this embodiment, the connecting 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 connecting plate portion 103. However, even in such a case, by reducing the plate thickness of the connecting plate portion 103 or by casting the reinforcing member 100, it is possible to ensure an area for forming the first bolt hole 101a and the second bolt hole 102a to an extent that sufficient strength can be ensured even if the size of the reinforcing member 100 is reduced, and it is also possible to ensure sufficient installation space for the first bolt 203 and the second bolt 204.

The assembled structural material 200 of this embodiment is provided with a joint member 1. The joint member 1 and the reinforcing member 100 connect the beam 201 and the column 202 by sandwiching the flange 201a of the beam 201 between them, and the base body 2 of the joint member 1 and the flange facing plate portion 101 of the reinforcing member 100 can improve the strength of the flange 201a of the beam 201. This makes it possible to suppress deformation of the flange 201a when a load is applied in the second direction D2.

Then, the base body 2 of the joint member 1 is arranged opposite the end face 202a and the end opening 202x of the column 202, and the base body 2 is joined to the end face 202a, so that the joint member 1 can be easily provided on the column 202, and a jointed structural material in which the column 202 and the joint member 1 are integrated can be easily constructed. That is, the joint member 1 can be abutted against the column 202 in the longitudinal direction of the column 202 for welding, and the positioning of the joint member 1 during joining can be very easily performed. Therefore, it is possible to improve the workability when connecting the column 202 and the beam 201 via the joint member 1. Furthermore, by integrating the column 202 and the base body 2 in the joint member 1, the strength of the column 202 can be improved by the base body 2. In addition, since the end face opposing surface 20 of the base body 2 is a tapered surface, the end face opposing surface 20 can be firmly welded to the end face 202a without performing groove processing on the side of the end face 202a of the column 202. In other words, by making the end-facing surface 20 into a tapered surface in advance, the effort of preparing a groove on the column 202 when butt-welding the joint member 1 to the column 202 can be eliminated, and the work process at the construction site can be shortened.

The base body 2 also has an annular step surface 22 that faces the inner wall surface 202b of the pillar 202. This allows a portion of the base body 2 to be inserted into the structural material internal space S so that the end face opposing surface 20 of the base body 2 faces the end face 202a of the pillar 202, making it even easier to position the joint member 1.

Furthermore, when the base body 2 of the joint member 1 is joined to the column 202, the square nut 3 is placed in the structural material internal space S inside the column 202, and the end opening 202x of the column 202 can be blocked 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.

In addition, the base body 2 of the structural joint member 1 has a square shape when viewed from above, and the corner nuts 3 are placed at the corners 2a of the base body 2, so the distance between the corner nuts 3 can be maximized, and sufficient strength can be secured against bending moments and other forces that occur between the column 202 and the beam 201.

In addition, by forming a rotation restriction surface 40 that restricts the rotation of the square nut 3, even if the square nut 3 is placed in the internal space S of the structural material and the worker is unable to access the square nut 3, the first bolt 203 can be securely screwed into the square nut 3.

In addition, because the rotation restriction surface 40 faces the side surface of the square nut 3 with a gap between them, it is possible to allow the square nut 3 to move slightly toward the surface of the base body. This makes it possible to absorb the dimensional tolerances of the columns 202 and beams 201, and even if the square nut 3 is placed in the internal space S of the structural material and the worker is unable to access the square nut 3, the first bolt 203 can be securely screwed into the square nut 3.

In addition, in this embodiment, the rotation restriction surface 40 is formed on the nut rotation restriction body 4, so that the rotation restriction surface 40 can be easily provided on the base body 2.

Furthermore, since the rotation restriction 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 falling off the base body 2 in the radial direction. In particular, in this embodiment, since the inner opposing surface 41 has an innermost opposing surface 45, an inner opposing surface 46 on one side, and an inner opposing surface 47 on the other side, it is possible to restrict the movement of the square nut 3 not only in the radial inward direction, but also in the circumferential direction of the virtual circle C.

The outer facing surface 42 has a one-side outer facing surface 48 and an other-side outer facing surface 49, and the one-side outer facing surface 48 faces a portion of the third side surface 33 of the square nut 3, and the other-side outer facing surface 49 faces a portion of the fifth side surface 35 of the square nut 3, so that the remaining areas of the third side surface 33, the remaining areas of the fifth side surface 35, and the fourth side surface 34 are exposed radially outward from the imaginary circle C. Therefore, the square nuts 3 can be positioned as close as possible to the corners 2a of the base body 2, and the distance between the square nuts 3 can be secured, ensuring sufficient strength against the bending moment and the like.

In addition, because the plate thickness dimension t40 of the nut rotation restrictor 4 is smaller than the plate thickness dimension t20 of the base body 2, the weight and cost of the nut rotation restrictor 4 can be reduced. Note that even if the plate thickness dimension t20 of the base body 2 is reduced in this way, a large load is not applied to the nut rotation restrictor 4 after the first bolt 203 is fastened, so there is no problem with strength.

In addition, by providing the plate thickness direction regulating surface 50, the square nut 3 will not fall off even if it is placed below the base body 2. In this embodiment, the plate thickness direction regulating surface 50 is formed on the nut holder 5, so that the plate thickness direction regulating surface 50 can be easily provided on the base body 2.

In addition, since the nut holder 5 is fitted into the nut rotation restricting body 4 between adjacent square nuts 3 in the circumferential direction of the virtual circle C and fixed to the base body 2, even if the square nut 3 is pressed to one side in the base body thickness direction (second direction D2) when the first bolt 203 is screwed into the square nut 3, the nut holder 5 is prevented from being pressed by the square nut 3 and the nut holder 5 is prevented from being deflected and deformed in the base body thickness direction D1. This prevents the square nut 3 from falling off, and the square nut 3 can be securely held on the base body 2.

The above describes the embodiments of the present invention in detail with reference to the drawings. However, each configuration and their combination in the above-mentioned embodiments is merely an example, and addition, omission, substitution, and other modifications of the configuration are possible without departing from the spirit of the present invention. Furthermore, the present invention is not limited to the embodiments, but is limited only by the claims.

The shape of the reinforcing member 2 is not limited to the above, and for example, a reinforcing member 100A as shown in FIG. 8 may be adopted. As shown in FIG. 9, FIG. 10(a), and FIG. 10(b), the connecting plate portion 103A of the reinforcing member 100A may have a protruding dimension from the web facing plate portion 102 in the third direction D3 that is approximately the same as that of the pair of flange facing plate portions 101. That is, the connecting plate portion 103A does not protrude outside the web 201b in the third direction D3, and is provided at the center position in the first direction D1 of the pair of flange facing plate portions 101 and the web facing plate portion 102. In addition, the above-mentioned beam 210 (see FIG. 1) is not provided for the connecting 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 of the connecting plate portion 103A from the web facing plate portion 102 in the third direction D3.

The reinforcing member 100 (100A) does not necessarily have to have a connecting plate portion 103 (103A). The flange facing 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 facing 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.

The material and shape of the pillar 202 and the joint member 1 are not limited to the above. For example, the joint member 1 may be applied to a wooden pillar instead of the pillar 202. In this case, the base body 2 of the joint member 1 may be fixed to the pillar 202 by bolts or the like instead of welding. The joint member 1 does not have to be made entirely of steel. If a steel pillar 202 is used, it is sufficient that at least the base body 2 is made of steel (or metal), and if the joint member 1 is not welded to the pillar 202, the entire base body 2 and the joint member 1 may be non-metallic.

The rotation restriction surface 40 and the plate thickness direction restriction surface 50 may be formed directly on the base body 2. The nut holder 5 may be provided for each square nut 3, and the fixing position of the nut holder 5 to the base body 2 is not particularly limited.

The positions of the sides 31-36 of the square nut 3 on the base body 2 and the shape of the rotation restriction surface 40 are not particularly limited, but it is advisable to set the positions of the sides 31-36 of the square nut 3 and the rotation restriction surface 40 so that at least the movement of the square nut 3 in the radial and circumferential directions of the imaginary circle C is restricted.

The base body 2 and the nut rotation restricting body 4 may also be manufactured by casting. In this case, the base body 2 and the nut rotation restricting body 4 may be manufactured as an integrated member.

According to the assembled structural material of the present invention, it is possible to optimize the structure while ensuring the required strength.

1...Joint member for structural materials 2...Base body 2a...Corner 2o...Center 2p...Vertex 2x...Diagonal 3...Square nut 4...Nut rotation restriction body 4x...Notch 5...Nut holder 20...End face opposing surface 21...Cover surface 22...Step surface 23...Through hole 24...Flange opposing 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 restriction surface 41...Inner opposing surface 42... Outer facing surface 45...innermost facing surface 46...one side inner facing surface 47...other side inner facing surface 48...one side outer facing surface 49...other side outer facing surface 50...plate thickness direction regulating surface 100, 100A...structural material reinforcement member 101...flange facing plate portion 101a...first bolt hole 102...web facing plate portion 102a...second bolt hole 103, 103A...connecting plate portion 103a...third bolt hole 200...assembled structural material 201...beam (first structural material)
201a... flange 201b... web 202... pillar (second structural member)
202a... end surface 202b... inner wall surface 202x... end opening 203... first bolt 204... second bolt 205... third bolt 210... beam (third structural member)
210b... Web S... Structural material internal space C... Virtual circle

Claims (6)

a first structural member having an H-shaped cross section and extending in a first direction;
a second structural member extending in a second direction intersecting the first direction and having an end opening formed on an end surface facing the second direction, the second structural member having a cylindrical shape;
a structural joint member provided on the end surface of the second structural member;
a structural reinforcement member disposed between a pair of flanges of the first structural member;
a first bolt that is inserted through the structural member reinforcing member and fastens the structural member reinforcing member to the structural member joint member to connect the second structural member to at least one of the flanges of the first structural member;
Equipped with
The structural reinforcement member is
a pair of flange facing plate portions disposed opposite each other such that a surface of each of the flanges contacts the corresponding flange, and at least a portion of each of the flange facing plate portions is disposed in a position overlapping the second structural material when viewed from the second direction;
a web opposing plate portion that connects the pair of flange opposing plate portions to each other and is disposed opposite to the web of the first structural material such that a surface of the web opposing plate portion contacts the web of the first structural material;
having
a plate thickness dimension of the web opposing plate portion is smaller than a plate thickness dimension of each of the pair of flange opposing plate portions,
At least one of the pair of flange opposing plate portions is formed with a first bolt hole penetrating the flange opposing plate portion in a plate thickness direction and through which the first bolt is inserted,
The joint member for structural materials is
a base body having a plate shape and covering the end surface and the end opening of the second structural member;
an annular end face opposing surface formed on the base body, facing one side in its plate thickness direction (hereinafter, base body plate thickness direction) that coincides with the second direction, opposed to the end face of the second structural material and joined to the end face;
a cover surface formed on the base body, the cover surface being disposed inside the end surface opposing surface and covering the end opening with the end surface opposing the end surface;
a through hole formed in the base body and penetrating the base body in a plate thickness direction of the base body at the cover surface;
A square nut is disposed on the one side of the base body in the plate thickness direction of the base body and is located in a structural material internal space surrounded by the base body and the second structural material;
A rotation restriction surface is provided on the one side of the base body in the thickness direction of the base body, is located in the internal space of the structural material, faces the side of the square nut with a gap in the surface direction of the cover surface (hereinafter, the base body surface direction), and engages with the square nut when it rotates to restrict the rotation.
a plate thickness direction regulating surface that is provided on the one side of the base body in the plate thickness direction of the base body, is located in the internal space of the structural material, faces the square nut from the opposite side of the base body in the plate thickness direction of the base body, sandwiches the square nut between the cover surface and the plate thickness direction regulating surface, and regulates the movement of the square nut in the plate thickness direction of the base body;
having
a height dimension of the rotation restricting surface in a thickness direction of the base body is smaller than a maximum dimension of the base body in the thickness direction of the base body,
The first bolt inserted into the first bolt hole of the flange facing plate portion of the structural material reinforcement member is screwed into the square nut through the through hole of the base body, thereby connecting the first structural material and the second structural material with the flange of the first structural material clamped in the second direction by the structural material reinforcement member and the structural material joint member. The structural material reinforcing member further includes a connecting plate portion that is erected from the web opposing plate portion in a third direction intersecting the first direction and the second direction and connects the pair of flange opposing plate portions to each other,
2. The assembled structural member according to claim 1, wherein the plate thickness of the connecting plate portion is smaller than the plate thickness of each of the pair of flange opposing plate portions. A second bolt hole is formed in the web facing plate portion of the structural material reinforcing member so as to penetrate the web facing plate portion in a plate thickness direction thereof,
The assembled structural member according to claim 2 , further comprising a second bolt inserted through the second bolt hole for fixing the web-facing plate portion to the web . 4. The assembled structural material according to claim 2, wherein the pair of flange opposing plate portions, the web opposing plate portion and the connecting plate portion of the structural material reinforcing member are integrally formed by casting. A third structural member having an H-shaped cross section and extending in the third direction,
the connecting plate portion in the structural material reinforcing member 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 a center position in the first direction of the pair of flange opposing plate portions and the web opposing plate portion,
The assembled structural material according to claim 2 or 3 , wherein the connecting plate portion is disposed opposite a surface of the web of the third structural material that faces the one side in the first direction. The joint member for structural materials further includes a nut rotation restricting body that is provided with the rotation restricting surface and is plate-shaped and joined to the one side of the base body in the plate thickness direction relative to the cover surface,
4. The assembled structural material according to claim 1, wherein a thickness of the nut rotation restrictor is smaller than a thickness of the base body.

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