JP2020012332A - Brace joining part and brace crosslinking structure - Google Patents

Abstract

To provide a brace joining part which can be applied to a general brace joining part (brace joining part including gusset plate) as a brace joining part that joins a column and/or a beam and a brace, and can accurately prevent deformation in a structure plane outside direction of a brace, and a brace crosslinking structure.SOLUTION: A brace joining part joins a column and/or a beam and a brace, in which the brace includes a connected gusset plate and a gusset plate movement mechanism which can move the gusset plate to a direction perpendicular to a structure plane.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a brace joint for joining a brace to a column or a beam in a building structure, and a brace frame structure using the same.

  2. Description of the Related Art In building structures, braces (diagonal members) are arranged to increase durability against earthquakes and strong winds. The brace is connected to the column or beam via the brace connection.

  FIG. 7 is a perspective view showing a state where a conventional general brace joint is taken out, and FIG. 8 (a) shows a brace frame structure using the conventional general brace joint of FIG.

  As shown in FIGS. 7 and 8A, the conventional general brace joint portion 81 includes a gusset plate 93 connected to the brace 2 (specifically, the end 2a of the brace 2). Here, a bolt hole 97 is provided in the gusset plate 93, and the gusset plate 93 and the brace 2 are connected by bolt bonding. In FIG. 7, reference numeral 94 denotes a stiffening stiffener for stiffening the gusset plate 93, and reference numeral 95 denotes a bolt joining plate for reinforcing the bolt joining between the gusset plate 93 and the brace 2. The gusset plate 93 and the stiffening stiffener 94 are fixed to the column 3 and the beam 4 by welding.

  In addition, as a conventional general brace joint, there are also a case where the gusset plate and the brace are connected by a pin joint, and a case where the gusset plate is fixed to one of the column and the beam. In some cases, two braces are arranged so as to cross each other.

  In a conventional brace frame structure using a conventional brace joint as described above, interlayer deformation (horizontal displacement between layers in a building structure) in a direction orthogonal to the structural surface (the plane on which the brace is installed). As a result, the brace itself is deformed out of the plane of the structure, and may be damaged before the brace exhibits sufficient performance.

  For example, in the case of the brace frame structure shown in FIG. 8A, in the case where interlayer deformation occurs in a direction perpendicular to the structure surface, a schematic diagram in which the brace 2 and the brace joint portion 81 and the like are projected on a vertical surface perpendicular to the structure surface. The figure is shown in FIG. In FIG. 8B, the upper beam 4 moves leftward, the lower beam 4 moves rightward, and accordingly, the gusset plate 93 on the upper end side of the brace 2 moves leftward, The gusset plate 93 on the lower end side of the brace 2 moves rightward, indicating that the brace 2 is deformed in a direction outside the construction plane.

  On the other hand, Patent Literature 1 discloses a damping damper that sandwiches a plurality of layers of high-damping rubber at a joint between a beam and a brace and has a damping performance against interlaminar deformation in a direction perpendicular to the structural surface. I have.

JP 2011-90619 A

  However, the vibration damper disclosed in Patent Literature 1 has a special structure in which an energy absorbing member in the in-plane direction and an energy absorbing member in the out-of-plane direction are integrated. Brace joints provided).

  The present invention has been made in view of the above circumstances, and has a general brace joint (a brace joint including a gusset plate) as a brace joint for joining a column or / and a beam to a brace. It is an object of the present invention to provide a brace joint portion and a brace frame structure which can be applied to a brace and can accurately prevent deformation of the brace in a direction outside the plane of the structure.

  In order to solve the above problems, the present invention has the following features.

  [1] A brace joint for joining a column and / or a beam to a brace, the gusset plate being connected to the brace, and a gusset plate moving mechanism for enabling the gusset plate to move in a direction orthogonal to the plane of construction A brace joint comprising:

  [2] In the gusset plate moving mechanism, a roller is provided between the column or / and the beam and the gusset plate, and the gusset plate can be moved in a direction perpendicular to the plane by rotation of the roller. The brace joint according to the above [1], wherein:

  [3] In the gusset plate moving mechanism, a viscoelastic body is provided between the column or / and the beam and the gusset plate, and the gusset plate is deformed by the viscoelastic body to move the gusset plate in a direction orthogonal to the plane of construction. The brace joint according to the above [1], wherein the brace joint is movable.

  [4] A brace frame structure using the brace joint according to any one of [1] to [3].

  ADVANTAGE OF THE INVENTION According to this invention, it can be applied to a general brace joint part (brace joint part provided with the gusset plate), and the brace joint part which can prevent deformation | transformation of the brace out of a construction surface direction exactly, and A braced frame structure can be obtained.

It is a perspective view showing a brace joint in Embodiment 1 of the present invention. It is a figure showing the brace frame structure using the brace joint in Embodiment 1 of the present invention. It is a perspective view showing a brace joint in Embodiment 2 of the present invention. It is a figure showing the brace frame structure using the brace joint in Embodiment 2 of the present invention. It is a perspective view showing a brace joint in Embodiment 3 of the present invention. It is a perspective view showing a brace joint in Embodiment 4 of the present invention. It is a perspective view which shows the state which took out the conventional general brace joint part. It is a figure which shows the brace frame structure using the conventional general brace joint part.

  The present invention relates to a brace joint that joins a column and / or a beam to a brace, and a gusset plate to which the brace is connected, and a gusset plate moving mechanism that enables the gusset plate to move in a direction perpendicular to the plane of the structure. And a brace frame structure using the brace joint.

  Hereinafter, embodiments (Embodiments 1 to 4) of the present invention will be described with reference to the drawings.

[Embodiment 1]
FIG. 1 is a perspective view of a brace joint according to the first embodiment of the present invention, and FIG. 2A shows a brace frame structure using the brace joint according to the first embodiment of the present invention in FIG.

  As shown in FIGS. 1 and 2A, the brace joint 1A according to the first embodiment of the present invention includes a gusset plate 13 connected to the brace 2 (specifically, the end 2a of the brace 2). Further, a bolt hole 17 is provided in the gusset plate 13, and the gusset plate 13 and the brace 2 are connected by bolt joining. In FIG. 1, reference numeral 14 denotes a stiffening stiffener for stiffening the gusset plate 13, and reference numeral 15 denotes a bolt joining plate for reinforcing the bolt joining between the gusset plate 13 and the brace 2.

  In addition, the brace joint 1A in the first embodiment serves as a gusset plate moving mechanism that enables the gusset plate 13 to move in a direction orthogonal to the construction surface, and is an L-shaped member fixed to the column 3 and the beam 4 by welding. , An L-shaped joining inner plate 12 fixed to the gusset plate 13 by welding, and a plurality of rollers 10 installed between the joining outer plate 11 and the joining inner plate 12. And

  In the case of the brace frame structure shown in FIG. 2 (a), when the interlayer deformation occurs in a direction perpendicular to the construction surface, a schematic diagram in which the brace 2 and the brace joint 1A and the like are projected on a vertical surface perpendicular to the construction surface. The figure is shown in FIG. As shown in FIG. 2B, the rotation of the roller 10 causes the gusset plate 13 to move relatively to the columns 3 and the beams 4 in a direction perpendicular to the structural surface, and the brace 2 is deformed in a direction outside the structural surface. To prevent them from doing so. More specifically, here, the upper beam 4 moves to the left and the lower beam 4 moves to the right due to the interlayer deformation in the direction perpendicular to the construction surface. The gusset plate 13 on the side moves rightward relative to the upper beam 4, and the gusset plate 13 on the lower end side of the brace 2 moves leftward relative to the lower beam 4. .

  In this manner, the brace joint 1A according to the first embodiment can be applied to a general brace joint (a brace joint having a gusset plate), and the deformation of the brace 2 in the out-of-plane direction is prevented. It can be prevented exactly.

[Embodiment 2]
FIG. 3 is a perspective view of a brace joint according to the second embodiment of the present invention, and FIG. 4A shows a brace frame structure using the brace joint according to the second embodiment of the present invention in FIG.

  As shown in FIGS. 3 and 4A, the brace joint 1B in the second embodiment of the present invention has the same basic configuration as the brace joint 1A in the first embodiment of the present invention. A gusset plate moving mechanism that enables the gusset plate 13 to move in a direction perpendicular to the construction surface is different.

  That is, in the second embodiment, as the gusset plate moving mechanism, an L-shaped joining outer plate 11 fixed to the column 3 and the beam 4 by welding, and an L-shaped joining fixed to the gusset plate 13 by welding. And a viscoelastic body (for example, rubber) 16 provided between the joining outer plate 11 and the joining inner plate 12.

  Then, in the case where interlayer deformation occurs in a direction perpendicular to the construction surface in the brace frame structure shown in FIG. 4A, a schematic diagram in which the brace 2 and the brace joint 1B and the like are projected on a vertical surface perpendicular to the construction surface. The figure is shown in FIG. As shown in FIG. 4B, the deformation of the viscoelastic body 16 causes the gusset plate 13 to move relatively to the columns 3 and the beams 4 in a direction perpendicular to the structural surface, and the brace 2 moves out of the structural surface. To prevent deformation. More specifically, here, the upper beam 4 moves to the left and the lower beam 4 moves to the right due to the interlayer deformation in the direction perpendicular to the construction surface. The gusset plate 13 on the side moves rightward relative to the upper beam 4, and the gusset plate 13 on the lower end side of the brace 2 moves leftward relative to the lower beam 4. .

  In this manner, the brace joint B in the second embodiment can be applied to a general brace joint (a brace joint provided with a gusset plate), and the deformation of the brace 2 in the out-of-plane direction is prevented. It can be prevented exactly.

[Embodiment 3]
FIG. 5 is a perspective view of the brace joint according to the third embodiment of the present invention.

  As shown in FIG. 5, the brace joint 1C according to the third embodiment of the present invention has the same basic configuration as the brace joint 1A according to the first embodiment of the present invention, but the gusset plate 13 and the brace 2 Connection means is different.

  That is, in the third embodiment, the connection between the gusset plate 13 and the brace 2 is performed by pin bonding, and the gusset plate 13 is provided with the hole 18 for pin bonding.

  Thus, the brace joint 1C in the third embodiment can be applied to a general brace joint (a brace joint including a gusset plate), like the brace joint 1A in the first embodiment. Thus, the deformation of the brace 2 in the out-of-plane direction can be accurately prevented.

[Embodiment 4]
FIG. 6 is a perspective view of a brace joint according to the fourth embodiment of the present invention.

  As shown in FIG. 6, the brace joint 1D according to the third embodiment of the present invention has the same basic configuration as the brace joint 1B according to the second embodiment of the present invention, but the gusset plate 13 and the brace 2 Connection means is different.

  That is, in the fourth embodiment, the connection between the gusset plate 13 and the brace 2 is performed by pin bonding, and the gusset plate 13 is provided with the hole 18 for pin bonding.

  Accordingly, the brace joint 1D in the fourth embodiment can be applied to a general brace joint (a brace joint including a gusset plate), similarly to the brace joint 1B in the second embodiment. Thus, the deformation of the brace 2 in the out-of-plane direction can be accurately prevented.

  In the brace frame structure according to the first to fourth embodiments, the brace joints 1A to 1D according to the first to fourth embodiments are used for both the brace joint at the upper end and the brace joint at the lower end of the brace 2. However, in some cases, the brace joints 1A to 1D may be used for only one of the lace joints.

  Also, the present invention can be applied to a case where the gusset plate is fixed to one of the pillar and the beam, and a case where two braces are arranged so as to cross the braces.

Reference Signs List 1A brace joint 1B brace joint 1C brace joint 1D brace joint 2 brace 2a brace end 3 pillar 4 beam 10 roller 11 outer plate for joining 12 inner plate for joining 13 gusset plate 14 stiffener 15 plate for bolt joining 16 Viscoelastic body 17 Bolt hole 18 Pin joining hole 81 Brace joint 93 Gusset plate 94 Stiffening stiffener 95 Bolt joining plate 97 Bolt hole

Claims (4)

  A brace joint for joining a column and / or a beam to a brace, comprising: a gusset plate to which the brace is connected; and a gusset plate moving mechanism that enables the gusset plate to move in a direction perpendicular to the plane of construction. A brace joint.   In the gusset plate moving mechanism, a roller is provided between the column or / and the beam and the gusset plate, and the gusset plate can be moved in a direction perpendicular to the plane by rotating the roller. The brace joint according to claim 1, wherein:   In the gusset plate moving mechanism, a viscoelastic body is provided between the column or / and the beam and the gusset plate, and the gusset plate can be moved in a direction orthogonal to a plane by deformation of the viscoelastic body. The brace joint according to claim 1, wherein:   A brace frame structure using the brace joint according to any one of claims 1 to 3.

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