JP2018048526A - Joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure that securely transmits force, along a member length direction of a first joint member, of force transmitted from the first joint member to a second joint member from the first joint member to the second joint member.SOLUTION: The present invention relates to a joint structure for joining together a first joint member 1 and a second joint member 2. The first joint member 1 comprises a pair of receiving side parts 5a, 5b which are opposite to each other in a member length direction X of the first joint member 1. An intermediate joint member 13 joined to the second joint member 2 comprises a pair of abutting side parts 14a, 14b which are opposite to each other in the member length direction X of the first joint member 1. The first joint member 1 and second joint member 2 are jointed together with first pair of abutting side parts 14a, 14b and the pair of receiving side parts 5a, 5b abutting on each other in the member length direction X of the first joint member 1.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a joining structure for joining a first joining member and a second joining member.

Such a joint structure is used, for example, when an existing truss beam is seismically reinforced and when a seismic reinforcement member as a second joint member is joined to an existing truss beam as a first joint member. Applied.
When seismically reinforcing an existing truss beam, conventionally, an accessory plate joined to a gusset of a reinforcing member (a cane) as a second joining member is disposed on the lower surface of the lower chord material as the first joining member, By placing another accessory plate on the upper surface of the lower chord material and inserting a high-strength bolt between these upper and lower accessory plates and screwing them into the nut, the force along the length direction of the truss beam is applied. What is comprised so that it may transmit to the wand which is a reinforcement member via a gusset is known (for example, refer patent document 1).
In addition, a U-shaped connecting member that sandwiches the lower chord material from above and below is inserted from both sides of the lower chord material of the truss beam as the first connecting member, and the second connecting member is formed on the lower surface of the U-shaped connecting member. An attachment plate joined to a reinforcing member (a cane) is placed, and an epoxy resin adhesive is filled between the U-shaped connecting member and the lower chord member and between the U-shaped connecting members. In addition, there is also known a configuration in which a force along the length direction of the truss beam is transmitted to a brace that is a reinforcing member by connecting the accessory plate and the U-shaped connecting member with a bolt (for example, , See Patent Document 2).

Japanese Patent No. 4042996 Japanese Patent No. 5336125

However, in the prior art described in Patent Document 1, among the forces transmitted from the truss beam as the first joining member to the cane as the second joining member, the force along the length direction of the truss beam is as follows: Because it is transmitted from the truss beam to the cane due to the frictional force between the lower chord and truss plate due to the tightening of the high-strength bolts, there is some reason between the lower chord and the creeping plate. Slip may occur and may adversely affect the transmission of force from the truss beam to the wand.
Similarly, even in the prior art described in Patent Document 2 above, the force along the length direction of the truss beam is the force of the epoxy resin adhesive filled between the lower chord member of the truss beam and the U-shaped connecting member. Since it is transmitted with the adhesive force as a factor, there is a possibility that slip occurs between the lower chord member and the U-shaped connecting member, and there is the same problem as the conventional technique of Patent Document 1.

  The present invention pays attention to such a conventional problem, and the purpose thereof is a force along the member length direction of the first joining member among the forces transmitted from the first joining member to the second joining member. It is providing the joining structure which can be reliably transmitted from a 1st joining member to a 2nd joining member.

  A first characteristic configuration of the present invention is a joining structure for joining a first joining member and a second joining member, wherein the first joining member is opposite in the member length direction of the first joining member. An intermediate joining member that includes a pair of receiving sides and is joined to the second joining member includes a pair of abutting sides that are opposite in the member length direction of the first joining member, and the pair of abutting sides And the pair of receiving sides are in contact with each other in the member length direction of the first joining member, and the first joining member and the second joining member are joined.

  According to this configuration, the first joining member includes a pair of receiving sides that are opposite in the member length direction, and the intermediate joining member joined to the second joining member is the member length of the first joining member. A pair of abutting sides opposite to each other in the direction, and the pair of abutting sides and the pair of receiving sides are joined in a state of contacting the member length direction of the first joining member. There is no risk of slippage between the pair of receiving side portions provided and the pair of contact side portions provided in the intermediate joining member joined to the second joining member, and transmission from the first joining member to the second joining member. Of the force to be applied, the force along the member length direction of the first joining member is reliably transmitted from the first joining member to the second joining member.

  The second characteristic configuration of the present invention is that the intermediate joining member is adjustable in posture with respect to the first joining member.

  According to this configuration, since the posture of the intermediate bonding member is freely adjustable with respect to the first bonding member, the pair of intermediate bonding members provided to the pair of receiving sides provided in the first bonding member. It is possible to adjust the posture of the abutment portion. Accordingly, it is possible to appropriately transmit the force along the member length direction of the first joining member from the first joining member to the second joining member by appropriately contacting the pair of the contact sides with the pair of receiving sides. it can.

  According to a third characteristic configuration of the present invention, the intermediate joint member includes a first intermediate joint member provided with one of the pair of contact sides and a second intermediate provided with the other contact side. It is in the point divided | segmented into the joining member.

  According to this configuration, the intermediate joint member is divided into a first intermediate joint member having one of the pair of contact sides and a second intermediate joint member having the other contact side. Therefore, with respect to the pair of receiving sides provided in the first joining member, the postures of the pair of receiving sides can be individually adjusted, and the pair of receiving sides with respect to the pair of receiving sides can be adjusted. The contact can be performed more appropriately and easily.

  According to a fourth characteristic configuration of the present invention, the first joining member includes a receiving side member having the pair of receiving side parts, and a direction in which the receiving side member is orthogonal to a member length direction of the first joining member. A pair of sandwiching members sandwiched between the first joining member and the pair of sandwiching members sandwiching the intermediate joining member provided with the pair of contact edges in a direction perpendicular to the member length direction of the first joining member. .

  According to this configuration, the first joining member includes a receiving member having a pair of receiving sides, and a pair of sandwiching members that sandwich the receiving member in a direction orthogonal to the member length direction of the first joining member. And the pair of sandwiching members sandwich the intermediate joining member having the pair of contact sides in the direction orthogonal to the member length direction of the first joining member, so the pair of receiving sides and the pair of contact sides The movement of the portion in the direction orthogonal to the member length direction of the first joining member is restricted by the pair of sandwiching members, and the contact of the pair of abutting sides with the pair of receiving sides is appropriate and reliable.

  A fifth characteristic configuration of the present invention is that the pair of receiving side portions and the pair of hitting side portions are in contact with each other between the pair of sandwiching members.

  According to this configuration, the pair of receiving sides and the pair of hitting sides abut between the pair of sandwiching members, so that the contact of the pair of hitting sides with the pair of receiving sides is more appropriate and reliable. It becomes.

Whole front view showing an application example of the joint structure according to the first embodiment The front view of the principal part of the junction structure by a 1st embodiment Longitudinal side view of main part of joint structure according to first embodiment The perspective view of the principal part of the junction structure by a 1st embodiment. The disassembled perspective view of the principal part of the junction structure by 1st Embodiment The front view of the principal part of the junction structure by a 2nd embodiment. Front view of the main part of the joint structure according to the third embodiment

An embodiment of a joint structure according to the present invention will be described with reference to the drawings.
The joint structure of the present invention is, for example, a seismic reinforcement member as a second joint member with respect to an existing building frame as a first joint member in an unfired environment when an existing building frame is seismically reinforced. It is applied when seismic reinforcement is performed by joining together.
Hereinafter, 1st-3rd embodiment is described regarding the junction structure.

[First Embodiment]
In the first embodiment, as shown in FIG. 1, the reinforcing member 2 for earthquake resistance as the second joining member is joined to the existing truss beam 1 as the first joining member. As an example, H-shaped steel is used and joined downward along the member length direction X of the truss beam 1.
The existing truss beam 1 includes an upper chord member 3 and a lower chord member 4 made of mold steel, and the upper chord member 3 and the lower chord member 4 are bundled 6 made of mold steel or a slant through a plurality of types of gusset plates 5 having different shapes. The material 7 is connected to each other. Such a truss beam 1 is horizontally connected and held with respect to a plurality of assembly pillars 8 formed by combining steel molds, and each assembly pillar 8 is erected on a foundation portion 9 embedded in the ground. The
On the other hand, the seismic reinforcing member 2 is disposed between the assembly columns 8 that hold the truss beams 1 and is horizontally connected and held to the reinforcing column 10 made of steel. That is, the pair of reinforcing columns 10 and the reinforcing member 2 are configured in a gate shape, and are disposed inside the pair of assembling columns 8 and the truss beam 1. Are joined together.

As shown in FIGS. 3 to 5, the lower chord member 4 of the truss beam 1 is a pair of angle steels 4 a as a pair of sandwiching members that sandwich the gusset plate 5 in a direction Y orthogonal to the member length direction X. 4b, and a pair of angle steels 4a, 4b and a gusset plate 5 are connected and fixed by a plurality of bolts / nuts 11 or rivets, and a bundle material 6 made of angle steel is attached to the gusset plate 5. The diagonal member 7 is connected and fixed by a plurality of bolts / nuts 11 or rivets.
As shown in FIGS. 2 and 5, the gusset plate 5 to which the bundle member 6 is connected has a pair of left and right inclined sides that are narrowed downward in front view, that is, a pair of opposite directions in the member length direction X of the truss beam 1. An inclined side is provided, and lower portions of the pair of inclined sides function as a pair of receiving side portions 5a and 5b described later.
On the other hand, the reinforcing member 2 made of H-shaped steel has a plate-shaped holding member 12 facing upward at a position corresponding to the gusset plate 5 in the flange portion of the H-shaped steel, as shown in FIGS. The intermediate joining member 13 is held by the holding member 12.

The intermediate joining member 13 is a plate having substantially the same thickness as the gusset plate 5, and is sandwiched in a direction Y perpendicular to the member length direction X by a pair of angle steels 4a and 4b. As shown in FIGS. The truss beam 1 includes a pair of abutting sides 14a and 14b that are opposite to each other in the member length direction X so as to be in contact with the pair of receiving sides 5a and 5b described above, and is divided into two.
That is, the intermediate joining member 13 includes a first intermediate joining member 13a having one abutting side portion 14a that abuts on one of the receiving side portions 5a of the pair of receiving side portions 5a and 5b, and the other receiving side portion. The second intermediate joining member 13b having the other abutting side 14b that abuts against 5b is divided into two parts, one receiving side 5a and the abutting side 14a, and the other receiving side 5b and the abutting side 14b. However, as shown in FIG. 2, it is comprised so that it may contact | abut between a pair of angle steel 4a, 4b.

The first intermediate joint member 13a and the second intermediate joint member 13b are connected and held to the holding member 12 by a plurality of bolts 15a and nuts 15b (see FIG. 3), but the intermediate joint members 13a and 13b are drilled. One or both of the provided bolt hole 16 (see FIG. 5) and the bolt hole 16 (see FIG. 5) drilled in the holding member 12 are configured as bolt holes 16 having a diameter appropriately larger than the diameter of the bolt 15a. Accordingly, the intermediate joining members 13 a and 13 b are configured to be capable of adjusting the posture with respect to the truss beam 1.
In other words, each intermediate joining member 13a, 13b is configured such that its posture can be freely adjusted with respect to the gusset plate 5 having a pair of receiving side portions 5a, 5b, and one receiving side portion 5a and the abutting side portion 14a are The other receiving side portion 5b and the contact side portion 14b are configured to be able to contact each other over the entire length of the inclined side portion.

Between the intermediate joining members 13a and 13b, the intermediate joining members 13a and 13b are positioned in the middle in the vertical direction, and the intermediate joining members 13a and 13b are sandwiched in a direction Y orthogonal to the member length direction X. In this state, a pair of first fixing members 17a and 17b made of angle steel are disposed, and the pair of first fixing members 17a and 17b and both intermediate joining members 13a and 13b are connected to a bolt 18a and a nut 18b (see FIG. 3). ), And a plate-like spacer 19 is inserted between the first fixing members 17a and 17b and the angle steels 4a and 4b as necessary.
A pair of plate-like second fixing members 20a and 20b are disposed above the intermediate joining members 13a and 13b in a state where the gusset plate 5 is sandwiched in a direction Y orthogonal to the member length direction X. The pair of second fixing members 20a and 20b and the intermediate joining members 13a and 13b are connected and fixed by bolts 21a and nuts 21b (see FIG. 3), respectively. By the presence of the pair of second fixing members 20a and 20b, twisting (relative misalignment in the Y direction) of the intermediate joining members 13a and 13b with respect to the gusset plate 5 can be more reliably prevented, and both intermediate joining can be performed. The members 13a and 13b are prevented from falling off.

[Second Embodiment]
The second embodiment is shown in FIG. 6 and is not significantly different from the first embodiment described above. That is, in the first embodiment, the second fixing members 20a and 20b are disposed above the intermediate joint members 13a and 13b and connected and fixed by the bolts 21a and the nuts 21b. In the second embodiment, As shown in FIG. 6, the second fixing members 20a and 20b are abolished, and the vertical heights of the intermediate joining members 13a and 13b are reduced accordingly.
Thus, even if the second fixing members 20a and 20b are eliminated, a pair of receiving sides 5a and 5b provided on the gusset plate 5 and a pair of abutting sides 14a and 14b provided on the intermediate joining member 13 are paired. As long as it contacts between the angle steels 4a and 4b, the contact between the receiving side portions 5a and 5b and the contact side portions 14a and 14b is extremely reliable.
Since other configurations are not different from those of the first embodiment, the same reference numerals as those of the first embodiment are used to avoid redundant description and description thereof is omitted.

[Third Embodiment]
In 1st and 2nd embodiment, although the reinforcement member 2 which consists of H-shaped steel with respect to the existing truss beam 1 showed the form joined below along the member length direction X of the truss beam 1, 3rd In the embodiment, as shown in FIG. 7, a wand 2 made of steel is used as a reinforcing member. That is, the cane 2 which is a reinforcing member for earthquake resistance as the second joining member is joined to the existing truss beam 1 as the first joining member.
A plate-shaped holding member 22 for a cane (corresponding to the holding member 12 of the first embodiment) is connected and fixed to the upper end of the cane 2, and the first intermediate joint member is connected to the holding member 22 for the cane. An intermediate joint member 13 composed of 13a and a second intermediate joint member 13b is attached to the truss beam 1 with a plurality of bolts and nuts 23 so that the posture can be adjusted. The lower part of the cane 2 is connected to and fixed to the existing assembly column 8 or the reinforcement column 10 is newly erected with reference to FIG. They are connected and fixed, or connected and fixed across the assembly column 8 and the reinforcing column 10.
Since there is no difference from the first embodiment with respect to the other configurations, the description is omitted by attaching the same reference numerals as in the second embodiment, but also in the third embodiment, the second fixing member 20a, 20b can be abolished and implemented.

[Another embodiment]
(1) In the previous embodiment, an example in which the intermediate joint member 13 is adjustable in posture with respect to the truss beam 1 as the first joint member has been described. It is not necessary to make the posture adjustable with respect to 1.
Moreover, although the intermediate joining member 13 showed the example divided | segmented into the 1st intermediate joining member 13a and the 2nd intermediate joining member 13b, the intermediate joining member 13 was comprised with the single member, and the single intermediate | middle was shown. The bonding member 13 may be provided with a pair of abutting sides 14a and 14b.
In any case, the shapes of the contact sides 14a and 14b of the intermediate joining member 13 are determined by the shape of the gusset plate 5 that functions as the receiving sides 5a and 5b. Therefore, for example, if the left and right sides of the gusset plate are parallel to the vertical direction, the shapes of the contact sides 14a and 14b are appropriately changed such that the contact sides 14a and 14b of the intermediate joining member 13 are also parallel to the vertical direction. Is possible.

(2) In the previous embodiment, an example in which the pair of receiving side portions 5a and 5b and the contact side portions 14a and 14b abut between the pair of sandwiching members 4a and 4b has been described. It can also comprise so that it may contact | abut on the location which remove | deviated from between, for example, a pair above pinching member 4a, 4b.
Further, the pair of sandwiching members 4a and 4b are not necessarily indispensable, and the pair of sandwiching members 4a and 4b can be omitted.

(3) In the above embodiment, the existing truss beam 1 is shown as the first joint member, and the reinforcing member 2 for earthquake resistance is shown as the second joint member. However, with regard to the first and second joint members 1 and 2, The present invention is not limited to truss beams and their reinforcing members, but can be applied to various building frames. Furthermore, in addition to building frames, it can be applied to various bonding members and implemented as a bonding structure between these bonding members. be able to.

DESCRIPTION OF SYMBOLS 1 1st joining member 2 2nd joining member 4a, 4b A pair of clamping member 5a, 5b A pair of receiving edge part 13 Intermediate | middle joining member 13a 1st intermediate joining member 13b 2nd intermediate joining member 14a, 14b A pair of contact edge part X Member length direction Y Direction orthogonal to member length direction

Claims (5)

A joining structure for joining the first joining member and the second joining member,
The first joining member includes a pair of receiving sides opposite to each other in the length direction of the first joining member, and the intermediate joining member joined to the second joining member is a member of the first joining member. A pair of abutting sides opposite in the length direction, wherein the pair of abutting sides and the pair of receiving sides are in contact with each other in the member length direction of the first joining member; A joining structure in which the member and the second joining member are joined.   The joint structure according to claim 1, wherein the intermediate joint member is adjustable in posture with respect to the first joint member.   The said intermediate | middle joining member is divided | segmented into the 1st intermediate | middle joining member provided with one contact edge part and the 2nd intermediate | middle joining member provided with the other contact edge part of a pair of said contact edge parts. The joining structure according to 1 or 2.   The first joining member includes a receiving member having the pair of receiving sides, and a pair of sandwiching members that sandwich the receiving member in a direction perpendicular to the member length direction of the first joining member, The pair of sandwiching members sandwiches the intermediate joining member having the pair of contact sides in a direction orthogonal to the member length direction of the first joining member. Junction structure.   The joint structure according to claim 4, wherein the pair of receiving side portions and the pair of hitting side portions are in contact with each other between the pair of sandwiching members.

Images