JP7093688B2 - Brace fixing bracket and floor support structure using the brace fixing bracket - Google Patents

Description

The present invention relates to a brace fixing bracket for fixing a brace material used for increasing the floor support strength and a floor support structure using the brace fixing bracket.

Conventionally, in a floor support structure in which a large lumber is placed on a floor slab via a floor support leg and a joist and a floor plate are provided on the large pull material, in order to increase the support strength, the space between the floor support legs or A brace material is provided as a diagonal material between the floor support leg and the slab (see Patent Document 1).
The floor support structure in Patent Document 1 discloses a structure in which brackets are provided on the upper portion of the floor support legs and on the slab, and braces are provided between the brackets to increase the floor support strength.
In this floor support structure, a bracket for fixing the brace is provided between the support bolt that constitutes the support column of the floor support leg and the receiving member that elastically supports the large lumber, so that the elastic support force of the floor plate is reduced. It has the advantage that the floor support strength can be increased without causing the floor support.

Japanese Patent No. 5112717 Utility model registration No. 2600408 Gazette

By the way, as is the case with the above-mentioned Patent Document 1, the brace material conventionally used as a diagonal material is generally a brace material having battledore-shaped portions such as battledore bolts at both ends (Patent). Document 2).
Then, the above-mentioned brace material is used by fixing the battledore-shaped portions at both ends to a braille racket made of a flat plate with bolts.
At present, when it is necessary to improve the seismic structure, the inventors have conducted diligent research for the purpose of further increasing the support strength compared to the conventional floor support structure in which the wing plate-shaped part is fixed to the brecket made of a flat plate. We have invented a brace fixing bracket and a floor support structure using the brace fixing bracket, which can further increase the supporting strength while the structure is not complicated as compared with the floor supporting structure of the above and is easy to construct. rice field.

The brace fixing bracket according to the present invention includes a flat plate-shaped support portion provided with support leg mounting holes for fixing to the floor support leg, and a vertical facing portion extending substantially vertically downward from both left and right sides of the support portion. A pair of brackets extending in parallel to the outside are integrally formed from both sides of each vertical facing portion and further along the left-right direction in the support portion, and the brackets are provided with brace mounting holes. The brace material can be fixed to the pair of brackets by a fastener through the brace mounting hole while the pair of side surfaces of the brace material having at least a pair of opposite side surfaces are sandwiched between the brackets. It is characterized by being configured in.
Further, in the above-mentioned brace fixing bracket, a plurality of brace mounting holes can be arranged in a matrix in each bracket.
Further, a flat plate-shaped reinforcing connecting plate for connecting the left and right brackets on the same side of the brace fixing bracket may be further provided.
Further, the floor support structure according to the present invention is the floor support structure in which a brace material is attached between a specific floor support leg and the foundation surface among a plurality of floor support legs arranged side by side on the foundation surface. The legs are composed of a U-shaped, L-shaped or flat plate-shaped receiving member that mounts and supports the large pulling material, and a strut portion that supports the large pulling material together with the receiving member. An upper brace fixing bracket made of the brace fixing bracket is fixed between them, and a lower brace fixing having a bracket having a pair of brace mounting holes extending upward from both sides of the bottom plate portion and the bottom plate portion on the foundation surface. The metal fittings are fixed, and the pair of side surfaces of the brace material having at least a pair of opposite side surfaces are sandwiched between the brackets of the upper brace fixing metal fitting and the bracket of the lower brace fixing metal fitting. The brace material is fixed to a pair of brackets by a fastener through a brace mounting hole of each bracket.
In the floor support structure described above, the upper brace fixing bracket is fixed to the floor support leg so that the bracket is located in a direction orthogonal to the longitudinal direction of the large lumber, and the lower brace fixing bracket is mounted on the foundation surface. It may be fixed at a predetermined position in the direction orthogonal to the longitudinal direction of the large pulling material in.


Further, in the floor support structure, the upper brace fixing bracket is fixed to the floor support leg so that the bracket is positioned along the longitudinal direction of the large lumber, and the lower brace fixing bracket is placed on the foundation surface. It may be fixed at a predetermined position in the same direction as the longitudinal direction of the large pulling material.
Further, in the floor support structure, the angle between at least one side of the bracket of the lower brace fixing bracket and the horizontal plane may be 60 ° or less.
Further, the angle between both sides of the bracket of the lower brace fixing bracket and the horizontal plane may be different. In this case, for example, the angle between one side of the bracket of the lower brace fixing bracket and the horizontal plane may be 45 °, and the angle between the other side and the horizontal plane may be 60 °.

The brace fixing bracket according to the present invention includes a flat plate-shaped support portion provided with support leg mounting holes for fixing to the floor support leg, and a vertical facing portion extending substantially vertically downward from both left and right sides of the support portion. A pair of brackets extending in parallel to the outside are integrally formed from both sides of each lead facing portion along the left-right direction of the support portion, and the brackets are provided with brace mounting holes. The brace material can be fixed to the pair of brackets by a fastener through the brace mounting hole while the pair of side surfaces of the brace material having at least a pair of opposite side surfaces are sandwiched between the brackets. Since it is configured in, it is possible to use a material with a pair of sides made of high-strength square steel, H-shaped steel, C-shaped steel, round steel, etc. as a brace material, and it is possible to increase the supporting strength of the floor. can. Further, the brace fixing bracket according to the present invention can be fixed with the pair of side surfaces of the brace material sandwiched between the two brackets, as compared with the case where the battledore is fixed to one bracket with bolts. , The strength at the connecting part of the brace material is increased. Further, the brace fixing bracket according to the present invention is attached between the receiving member of the large pulling material and the support column in the floor support leg by forming the support portion in a flat plate shape and providing the support leg mounting hole. The brace material can be fixed below the receiving member so that the receiving member can elastically support the large pulling material. Even in the case, the supporting strength of the floor can be increased while retaining the elastic supporting force. Furthermore, since a material having a pair of side surfaces such as square steel can be used as a brace material without any special processing, it is possible to reduce the cost.
Further, by providing a plurality of brace mounting holes in a matrix on each bracket, the brace mounting holes face the side surface of the brace material regardless of the angle at which the brace material is arranged between the brackets of the brace fixing brackets. Since it is configured to do so, it becomes possible to freely select the angle for fixing the brace material, and the construction becomes easy.
Further, by further providing a flat plate-shaped reinforcing connecting plate for connecting the left and right brackets on the same side of the brace fixing bracket, the strength of the bracket in the brace fixing bracket can be increased.
The floor support structure according to the present invention is a floor support structure in which a brace material is attached between a specific floor support leg and the foundation surface among a plurality of floor support legs arranged side by side on the foundation surface. It consists of a U-shaped, L-shaped or flat plate-shaped receiving member that mounts and supports the large pulling material, and a strut portion that supports the large pulling material together with the receiving member, and is between the receiving member and the strut portion. An upper brace fixing bracket made of the above brace fixing bracket is fixed, and a lower brace fixing bracket having a bracket having a pair of brace mounting holes extending upward from both sides of the bottom plate portion and the bottom plate portion on the foundation surface is provided. The brace is fixed, and the brace is sandwiched between the brackets of the upper brace fixing bracket and between the brackets of the lower brace fixing bracket, respectively, at both ends of the brace material having at least a pair of opposite side surfaces. The material is fixed to a pair of brackets by fasteners through the brace mounting holes of each bracket. As described above, in the floor support structure according to the present invention, the upper brace fixing bracket and the lower brace fixing bracket each have a pair of brackets, and the pair of side surfaces of the brace material are sandwiched between the brackets of the respective fixing brackets. Since it is fixed with, the strength at the connecting part of the brace material is increased as compared with the case where the battledore is fixed to one bracket with bolts or the like. In addition to this, since a material having a pair of side surfaces made of high-strength square steel, H-shaped steel, C-shaped steel, round steel, etc. can be used as the brace material, the strength of the brace material itself is also high. , The support strength of the floor is increased.
Further, in the floor support structure, the upper brace fixing bracket is fixed to the floor support leg so that the bracket is located in a direction orthogonal to the longitudinal direction of the large pulling material, and the lower brace fixing bracket is attached to the foundation surface. By fixing the large pulling material at a predetermined position in the direction orthogonal to the longitudinal direction of the large pulling material, it is possible to prevent the large pulling material from swaying in the direction orthogonal to the longitudinal direction thereof.
Further, in the floor support structure, the upper brace fixing bracket is fixed to the floor support leg so that the bracket is positioned along the longitudinal direction of the large lumber, and the lower brace fixing bracket is placed on the foundation surface. By fixing the large pulling material at a predetermined position in the same direction as the longitudinal direction, it is possible to prevent the large pulling material from swaying in the longitudinal direction.
Further, in the floor support structure, the angle between at least one side of the bracket of the lower brace fixing bracket and the horizontal plane is set to 60 ° or less, so that the brace material is fixed to the lower brace fixing bracket when the brace material is fixed. By simply arranging the bracket along the inclination of the bracket, it becomes easy to arrange the brace material at a certain angle. This makes it possible to greatly improve the ease of construction.
Further, the angle between both sides of the bracket of the lower brace fixing bracket and the horizontal plane is set to a different angle, for example, the angle between one side of the bracket of the lower brace fixing bracket and the horizontal plane is set to 45 °. By setting the angle between the other side and the horizontal plane to 60 °, it becomes possible to easily fix the brace material at an angle of 45 ° or 60 ° using one lower brace fixing bracket. ..

It is a front view of the brace fixing metal fitting which concerns on this invention. It is a top view of the brace fixing metal fitting shown in FIG. It is a bottom view of the brace fixing metal fitting shown in FIG. It is a perspective view of the brace fixing metal fitting shown in FIG. It is a figure which shows one Example of the floor support structure which concerns on this invention. It is a partial cross-sectional enlarged view which shows the detail of the connection part of the floor support leg and the upper brace fixing metal fitting. It is a front view of the lower brace fixing bracket. FIG. 7 is a plan view of the brace fixing bracket shown in FIG. 7. It is a bottom view of the brace fixing metal fitting shown in FIG. 7. It is a perspective view of the brace fixing metal fitting shown in FIG. 7. It is a perspective view which shows the brace fixing metal fitting and the reinforcing connecting plate shown in FIG. It is a perspective view which shows the state which attached the reinforcing connecting plate to the brace fixing metal fitting shown in FIG.

Hereinafter, an embodiment of the brace fixing bracket and the floor support structure using the brace fixing bracket according to the present invention will be described with reference to an embodiment shown in the attached drawings.

1 to 4 show a front view, a plan view, a bottom view, and a perspective view of the brace fixing bracket according to the present invention, respectively.
As shown in the drawings, the brace fixing bracket 1 in this embodiment is formed by bending a single steel plate.
The brace fixing bracket 1 includes a flat plate-shaped support portion 2, vertical facing portions 3 and 3 extending substantially vertically downward from both left and right sides of the support portion 2, and further from both sides of each of the vertical facing portions 3 and 3. A pair of brackets 4 and 4 extending in parallel to the outside are integrally formed by bending along the left-right direction of the support portion 2.
The support portion 2 is formed with support leg mounting holes 2a for fixing to the floor support legs, which will be described later, and each bracket 4 has a plurality of (nine in this embodiment) brace mounting holes 5 in a matrix shape. Is formed in.
The distance T between the pair of brackets 4 and 4 is sized according to the width between the pair of side surfaces in a material having at least a pair of side surfaces used as a brace material.
With the configuration as described above, with the pair of side surfaces of the brace material sandwiched between the pair of brackets 4 and held, the brace material can be appropriately bolted or screwed using any brace mounting hole 5. It can be fixed to a pair of brackets 4 with a suitable fastener. Here, examples of the material having at least a pair of side surfaces include steel materials such as square steel, H-shaped steel, C-shaped steel, and round steel, and these materials have both ends that have been conventionally used. Compared to the brace material having a battledore-shaped portion, its own strength is high. Further, by sandwiching the brace material between the pair of brackets 4 and fixing it from both sides, the supporting strength of the connecting portion is higher than that of the conventional brace material in which the battledore-shaped portion is fixed to one bracket. Therefore, it is possible to increase the support strength of the entire floor support structure. Further, it is not necessary to use a brace material having a special structure in order to increase the support strength of the floor support structure, and general materials such as square steel, H-shaped steel, C-shaped steel or round steel can be used. , The cost does not go up.
Further, by arranging a plurality of brace mounting holes 5 in the bracket 4 in a matrix, at least one brace mounting hole 5 is always formed with the brace material regardless of the angle at which the brace material is arranged between the brackets 4. Since they face each other, it is easy to attach the brace material.

Hereinafter, a floor support structure using the brace fixing bracket configured as described above as the upper brace fixing bracket will be described.

FIG. 5 is a diagram showing an embodiment of the floor support structure according to the present invention, and FIG. 6 is a partially enlarged cross-sectional view showing details of a connecting portion between the floor support leg and the upper brace fixing bracket.
The floor support structure in this embodiment is
A plurality of floor support legs 20 attached to the floor slab 10 as a foundation surface, and
A plurality of large lumbers 11 supported from below by these floor support legs 20 and
A brace material 12 having one end fixed to the upper part of an arbitrary floor support leg 20 and the other end fixed to the floor slab 10.
An upper brace fixing bracket 1 for fixing the brace material 12 to the floor support leg 20 and
A lower brace fixing bracket 30 for fixing the brace material 12 to the floor slab 10 is provided.
A joist 13 is arranged on the large lumber 12, and a floor plate (not shown) is laid on the joist 13.
The brace material used in this embodiment is also a material having at least a pair of side surfaces, and is made of, for example, square steel, H-shaped steel, C-shaped steel, round steel, or the like.

The floor support leg 20 is
A support column 24 composed of a tubular support base 21, a connecting member 22 attached to the upper portion of the support base 21, and a support bolt 23 fixed upright to the connecting member 22 in a substantially vertical direction.
The receiving member 25 fixed to the upper part of the support bolt 23,
An elastic member 26 provided on the receiving member 25 and
It has a fastener 27 consisting of bolts and nuts.
The fastener 27 is a member that fastens the upper portions of both side plates of the receiving member 25 after fitting the large pulling member 11 to the receiving member 25.
The support base 21 is made of a steel cylinder, and a flat plate-shaped pedestal portion 28 is provided at the lower end portion thereof.

The receiving member 25 is formed in a U shape in this embodiment, and a protrusion 25b is formed in the central portion of the bottom plate portion 25a so as to project downward in a cylindrical shape by burring. A screw groove into which the support bolt 23 can be screwed is formed inside the portion 25b. The length of the protruding portion of the protrusion 25b is preferably the same as or shorter than the thickness of the support portion 2 of the upper brace fixing bracket 1.

The upper brace fixing bracket 1 is fixed below the receiving member 25 in the floor support leg 20 configured as described above.
Specifically, the upper brace fixing bracket 1 has the support portion 2 located on the upper side, and the protrusion hole portion 25b of the receiving member 25 is fitted into the support leg mounting hole 2a of the support portion 2 to fit the floor. The upper end of the support bolt 23 of the support leg 20 is screwed into the protrusion 25b and fastened with the fastening nut 29 via a washer (unsigned) to be fixed to the back surface of the receiving member 25.

Next, the lower brace fixing member 30 fixed to the floor slab 10 will be described.
7 to 10 show a front view, a plan view, a bottom view, and a perspective view of the lower brace fixing bracket fixed to the floor slab 10.
As shown in the drawing, the lower brace fixing bracket 30 includes a bottom plate portion 31 fixed to the floor slab 10, a pair of flange portions 32 extending upward from both sides in the front-rear direction of the bottom plate portion 31, and left and right sides of each flange portion 32. A pair of brackets 33 extending diagonally upward to the right from the vicinity of the center of the direction are integrally molded by bending.
Each bracket 33 is formed so that the angle α between the right side 33a and the horizon H is 45 °, and the angle β between the left side 33b and the horizon H is 60 °. Is formed with a plurality of (three in this embodiment) brace mounting holes 34.
Further, a plurality of (three in this embodiment) mounting holes 31a are also formed in the bottom plate portion 31, and the lower brace fixing bracket 30 is provided with bolts, screws, or the like on the floor slab 10 through the mounting holes 31a. It is fixed with a suitable fastener.
In the lower brace fixing bracket 30 configured as described above, the angle α between the right side 33a and the horizontal line H in the bracket 33 is 45 °, and the angle β between the left side 33b and the horizontal line H is 60 °. Therefore, when the brace material is arranged along the right side 33a and fixed to the bracket 33, for example, the brace material can be fixed to the floor slab 10 at an angle of 45 °. If the brace material is arranged along the left side 33b and fixed to the bracket 33, the brace material can be fixed at an angle of 60 ° with respect to the floor slab 10. These 45 ° and 60 ° are angles suitable for the arrangement angle of the brace material as the diagonal material. Therefore, according to the lower brace fixing bracket 30 configured as described above, the brace material can be easily attached at a preferable angle only by determining the fixing position of the lower brace fixing bracket 30 with respect to the floor slab 10 in advance. And the construction becomes remarkably easy. The angle between both sides of the bracket 33 and the horizontal line in the lower brace fixing bracket 30 can be arbitrarily set. For example, both the right side and the left side may have the same angle with respect to the horizontal line. , 45 ° and a combination of angles other than 60 °. Specifically, for example, the bracket 33 may be formed so that the angle between one side and the horizon is 30 °.

As described above, the side surface 12a is sandwiched between the brackets 4 of the upper brace fixing bracket 1 fixed to the floor support leg 20 and the brackets 33 of the lower brace fixing bracket 30 fixed to the floor slab 10. The brace material 12 is fixed to the brackets 4 and 33 by an appropriate fastener such as a bolt or a screw via the brace mounting holes 5 and 34 in a state where the upper end portion and the lower end portion of the brace material 12 are arranged. As a result, the brace material 12 is fixed at its upper end and lower end with its both side surfaces 12a sandwiched between the pair of brackets 4 and 33.

In the above embodiment, the upper brace fixing bracket 1 is fixed to the floor support leg 20 so that the bracket 4 is located in the direction orthogonal to the longitudinal direction of the large lumber 11. It is possible to prevent the large pulling material 11 from shaking in a direction orthogonal to its longitudinal direction.

The fixing direction of the upper brace fixing bracket 1 is not limited to this embodiment, and is fixed to the floor support leg 20 so that the bracket 4 is located, for example, in the direction along the longitudinal direction of the large lumber 11. However, by fixing in this way, it is possible to prevent the large lumber 11 from swaying in the longitudinal direction.
Further, in the above-described embodiment, nine brace mounting holes 5 are provided in a matrix shape in the bracket 4 of the upper brace fixing bracket 1, but this configuration is not limited to this embodiment, and the brace mounting holes 5 are not limited to this embodiment. The number of can be set arbitrarily.
Furthermore, in the above-described embodiment, an example in which the brace fixing bracket 1 and the lower brace fixing bracket 30 are formed by bending is described, but the method for manufacturing the brace fixing bracket 1 and the lower brace fixing bracket 30 is the present implementation. Without limitation, any other manufacturing method may be used, for example, forming a bracket or the like for sandwiching the brace material by welding.
Further, in the above-described embodiment, an example in which the receiving member for supporting the large pulling material in the floor support leg is formed in a U shape, but the configuration of the floor support leg is not limited to this embodiment and is arbitrary. The receiving member may be configured in an L shape or a flat plate shape, for example.

Furthermore, as shown in FIGS. 11 and 12, the upper brace fixing bracket 1 may have flat plate-shaped reinforcing connecting plates 6 and 6 for connecting the left and right brackets 4 and 4 located on the same side. The reinforcing connecting plate 6 has a brace mounting hole 7 at a position facing the brace mounting hole 5 formed in the bracket 4 when the reinforcing connecting plate 6 is mounted on the upper brace fixing bracket 1.
As a result, the brace material 12 is fixed to the bracket 4 together with the reinforcing connecting plate 6.
By fixing the left and right brackets 4 and 4 to the reinforcing connecting plate 6 in this way, the strength of the upper brace fixing bracket 1 is increased, and as a result, the supporting strength of the brace material 12 is also increased.

1 Brace fixing bracket (upper)
2 Support part 2a Support leg mounting hole 3 Vertical facing part 4 Bracket 5 Brace mounting hole 6 Connection reinforcement hurts 7 Brace mounting hole

10 Floor slab 11 Large lumber 12 Brace material 12a Side of brace material

20 Floor support legs 21 Support base 22 Connecting members 23 Support bolts 24 Struts

25 Receiving member 25a Bottom plate part 25b Protrusion part 26 Elastic member 27 Fastener 28 Pedestal part 29 Fastening nut

30 Brace fixing bracket (bottom)
31 Bottom plate 31a Mounting hole 32 Flange 33 Bracket 33a Right side 33b Left side 34 Brace mounting hole

T Distance between brackets α Angle between the right side 33a of the bracket portion 33 and the horizon H β Angle between the left side 33a of the bracket portion 33 and the horizon H Horizontal line H

Claims (9)

A flat plate-shaped support with support leg mounting holes for fixing to the floor support legs,
From the left and right sides of the support part, the vertical facing part extending downward substantially vertically, respectively,
A pair of brackets extending in parallel to the outside are integrally formed from both sides of each vertical facing portion and further along the left-right direction in the support portion.
A brace mounting hole is provided in the bracket.
The brace material can be fixed to the pair of brackets by a fastener through the brace mounting hole in a state where the pair of side surfaces of the brace material having at least a pair of opposite side surfaces are sandwiched between the brackets. A brace fixing bracket characterized by being configured in the above manner. The brace fixing bracket according to claim 1, wherein a plurality of brace mounting holes are arranged in a matrix on each bracket. The brace fixing bracket according to claim 1 or 2, further comprising a flat plate-shaped reinforcing connecting plate for connecting the left and right brackets on the same side of the brace fixing bracket. In a floor support structure in which a brace material is attached between a specific floor support leg and the foundation surface among a plurality of floor support legs arranged side by side on the foundation surface.
The floor support leg is composed of a U-shaped, L-shaped or flat plate-shaped receiving member that mounts and supports the large lumber, and a strut portion that supports the large lumber together with the receiving member, and the receiving member and the strut. Fix the upper brace fixing bracket made of the brace fixing bracket according to any one of claims 1 to 3 between the parts and the portion.
A lower brace fixing bracket having a bracket having a pair of brace mounting holes extending upward from both sides of the bottom plate portion and the bottom plate portion is fixed on the foundation surface.
The brace material is held between the brackets of the upper brace fixing bracket and between the brackets of the lower brace fixing bracket, with the pair of side surfaces of both ends of the brace material having at least a pair of opposite sides sandwiched between the brackets. A floor support structure characterized by being secured to a pair of brackets by fasteners via brace mounting holes in each bracket. The upper brace fixing bracket is fixed to the floor support leg so that the bracket is positioned in a direction orthogonal to the longitudinal direction of the large lumber.
The floor support structure according to claim 4, wherein the lower brace fixing bracket is fixed at a predetermined position on the foundation surface in a direction orthogonal to the longitudinal direction of the large pulling material. The upper brace fixing bracket is fixed to the floor support leg so that the bracket is positioned along the longitudinal direction of the large lumber.
The floor support structure according to claim 4, wherein the lower brace fixing bracket is fixed at a predetermined position on the foundation surface in the same direction as the longitudinal direction of the large pulling material. The floor support structure according to any one of claims 4 to 6, wherein the angle between at least one side of the bracket of the lower brace fixing bracket and the horizontal plane is 60 ° or less. The floor support structure according to claim 7, wherein the angle between both sides of the bracket of the lower brace fixing bracket and the horizontal plane is different. 8. The floor support structure described.

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