JP5336125B2 - Mounting structure for reinforcing members in structures - Google Patents

Description

  The present invention relates to a mounting structure for a reinforcing member such as a cane or fire in a structure such as a truss structure or a ramen structure.

In the corners of structures such as trusses and ramen, reinforcing members such as a cane and fire are arranged to improve earthquake resistance.
And as a structure and attachment method of this reinforcement member, there is a cane 50 shown in FIGS. 4 (a), (b), (c) as a general one. In this cane 50, as a reinforcing member for a roof beam 51 (may be a beam for each floor) and a column 52, a substantially trapezoidal H steel material 53 scalloped and welded with an accessory plate 54 are bolts and nuts 55. There are things to be joined. The stiffener 56 is provided to prevent local destruction due to concentrated stress generated at the ends of the beam 51 and the column 52.

Further, Patent Document 1 below proposes a friction joining structure and a seismic reinforcement method for a structural member made of steel and a reinforcing member such as a wand or fire. Specifically, as described in claim 1, the flange portion of the steel material (lower chord material LC) of the structure is sandwiched between the first accessory plate 11 and the second accessory plate 12. The second accessory plate protrudes from the end portion of the lower chord material LC, and the spacer 13 of FIG. 8 is arranged in the protruding portion, and the bolt hole 16 provided in the first and second accessory plates and the spacer is inserted into the bolt hole 16 provided in the first and second accessory plates. The high-strength bolt 14 and the nut 15 are used for frictional joining.
Japanese Patent No. 4042996

  However, the cane structure shown in FIGS. 4 (a), 4 (b), and 4 (c) of the above-mentioned attached drawings is obtained by applying a welded plate 54 of H steel material 53 to the flange portion of the column 52 or beam 51. Even if fire is used or not used for tightening and joining with force bolts, there are work risks such as drilling bolt holes on site and dropping parts and components by tightening bolts and nuts. .

  Further, although the conventional patent does not use fire, the second accessory plate 12 and the first accessory plate 11 welded to the lower chord material LC constituting the pillars and beams and the gusset G for the cane, and the spacers at the ends thereof The parts having a large number of assembly points such as 13 have to be arranged as shown in FIG. 11 and then joined with the high-strength bolts 14 and the nuts 15, and the assembly work including temporary fastening and final fastening is extremely complicated.

  The present invention is intended to solve the above-mentioned problems, and its purpose is not to use fire in the installation work, but it does not require drilling work on site, and can be installed with a simple tool such as a spanner. A structure for mounting a reinforcing member for a column or a beam, which is a structure that can still hold sufficient structural strength, is provided.

The present invention has been made in order to solve the above-described problems, and includes a reinforcing member such as a cane or a fire rod in which a pedestal plate is directly integrated with or without a gusset, a flange portion of a column or a beam, and the a shaped connecting member of a set of co sandwiching from both sides in the flange portion, and a bolt connecting between shaped connecting member of the添板each co, filled filled between shaped connecting member of the flange portion and co consists of a wood, there is provided a mounting structure of the reinforcing member in the structure is characterized in that concatenates the添板and the flange by the bolts.

  The pillars and beams may be equilateral angle steel made of two flanges shown in FIG. 3 or H steel made of upper and lower flanges via a web (not shown). Further, the beam or column may be a truss structure shown in FIG. 2 or a frame structure not shown.

  To attach the reinforcing member, either the end of the reinforcing member that becomes a cane or a firestick or the end of the column and / or the flange part of the beam inserted into a pair of U-shaped connecting members The U-shaped connecting member is welded with a gusset plate through a gusset plate in a contact state, with a plurality of bolts penetrating or threading through a plurality of through holes or female screws provided in the accessory plate. Screwed into the female screw provided in In addition, if the accessory plate is screwed to the U-shaped connecting member and temporarily fixed, it is possible to prevent a risk of dropping the bolt during final tightening.

The plate fixed to the reinforcing member by the plurality of bolts is temporarily fixed to the U-shaped connecting member, that is, the gap between the U-shaped connecting member and the flange portion of the column or beam, Fill the gap facing the lower side of the character-shaped connecting member with a filler, and then screw in the bolts that are temporarily fixed and press the tip part to the lower side of the flange part to make the reinforcing member a column or Fully tighten the flange of the beam.
Further, the present invention is a structure for attaching a reinforcing member to a column and / or a beam. FIG. 2 shows a structure using a conventional method in which only a beam side is applied and a accessory plate is welded to the column side. .
As the filler of the present invention, an epoxy resin-based adhesive is preferable in consideration of a material having a certain degree of viscosity, a gap filling performance, and no strength and volume change.

Mounting of the reinforcing member of the present invention disposed shaped coupling member co from both sides in the flange portion, a bolt passing through the through or threaded into添板provided integrally with the reinforcing member, shaped coupling of the co The reinforcing member is attached to the structure by screwing onto the screw of the member. In addition, filling the filler between the flange portion and the U-shaped connecting member before screwing with the bolt deepens the integrity of the structure and the reinforcing member.

  In order to connect the reinforcing member to the structure, the U-shaped connecting member is held on the flange of the structure, and the parts are dropped by tightening the bolt installed on the reinforcing plate. The construction was made possible by simple operation.

The technical scope of the present invention is not limited to the following examples as long as it is based on the gist described in the claims.
FIG. 1 shows a truss structure on the ceiling and side walls, and the corner portion A of the structure of the truss of the present invention is shown as a schematic view of the corner portion A in FIG.
A beam 1 made of a truss structure is vertically between an upper chord member 1 and a lower chord member 1 'made of angle steel, and between the upper bundle gusset 4 and the lower bundle gusset 5 welded to the respective chord members 1 and 1'. The lattice material 3 is fixed between the lower gusset 5 and the corner gusset 9 in which the column main reinforcement 8 is connected to the upper chord material 1. 11 is fixed. Further, the column main reinforcement 8 has an outer column main reinforcement 8 'in addition to the inner side, and a water stiffener 12 between the column main reinforcements 8 and 8' and corner gussets 13 and 9 'provided on the outer column main reinforcements, 13 'is installed between each.

  Therefore, the main part of the present invention is a reinforcing member in the corner portion connecting the lower chord material 1 'and the columnar reinforcement 8, that is, a mounting structure of the cane 16, and the flange portions 14, 14' of the lower chord material 1 ' As shown in FIG. 3 as viewed from the arrow A in FIG. 2, U-shaped connecting members 15 and 15 ′ are fitted from both sides of the flange portions 14 and 14 ′. The lower portions of the U-shaped connecting members 15 and 15 'are welded to the upper ends of the canes, which are shorter than the widths of both the members 15 and 15' and longer than the upper ends of the canes 16. The attached plate 17 is screwed with the female screws 22, 22 'and the female screws 23, 23' by bolts 18, 18 '.

In addition, filling between the U-shaped connecting members 15 and 15 'and the flange portions 14 and 14' and between the U-shaped connecting members 15 and 15 'disposed in a relative manner is made of epoxy resin. The material 19 is filled. In addition, the above-mentioned flange portions 14 and 14 'indicate horizontal flanges as angle irons, and the vertical bundle 2 described above is connected between the vertical flanges 21 and 21' by striking 20 using existing technology. Yes.

Explaining the mounting order of the above-described configuration of the present invention, the U-shaped connecting members are inserted from both sides of the flange portions 14 and 14 'of the existing angle steel as the lower chord material of the beam. Next, the U-shaped connecting member 15 is secured by bolts 18 and 18 ′ which are temporarily fixed to the internal female screws 22 and 22 ′ in the through holes provided in the accessory plate 17 with the accessory plate 17 welded to the cane 16. , 15 ′ are screwed into the aligned female screws 23, 23 ′ to temporarily fix the staff 16 and the lower chord material 1 ′.
In this state, the filler 19 is press-fitted from the gap between the upper U-shaped connecting members 15 and 15 'and the vertical flanges 21 and 21', and then the temporarily fixed bolts 18 and 18 'are screwed into the horizontal flange. The construction is completed by pressing the lower end of 14, 14 '.

In the above description, the bolts 18 and 18 'are temporarily fixed to the female screws 22 and 22' of the accessory plate 17, but the female screws on the accessory plate are simply through holes and the bolts 18 and 18 'are U-shaped. It can also be screwed to the female screw 23, 23 '.
Moreover, although the said Example demonstrated the attachment structure above the cane in the corner part between a beam and a pillar, this invention can also be applied to the attachment structure below a cane.
Furthermore, in addition to the embodiment of the cane in the corner portion of the present embodiment, the present invention can also be carried out on a fire not shown.

  According to the present invention, in the structure for attaching the reinforcing member of the structure, the attachment plate provided at the end of the reinforcing member such as a cane is connected to the U-shaped connecting member fitted on both sides of the flange by bolt connection. By fixing the reinforcing member to the structure, the attachment of the reinforcing member can be applied by a simple operation without using fire.

It is the schematic which shows the application location of the Example of this invention in a truss structure. It is a principal part enlarged view of FIG. FIG. 3 is a vertical cross-sectional view taken from the arrow A side in FIG. 2. The example of the attachment of the conventional wand at the corner part of a pillar-beam is shown.

Explanation of symbols

1 'Truss beam lower chord material 2 Bundle material 8 Column main bar 14, 14' Lower chord material angle steel flange 15, 15 'U-shaped connecting member 16 Staff (reinforcement member)
17 Substrate 18, 18 'Bolt 23, 23' Female thread 19 Filler

Claims (1)

In the mounting structure of reinforcing members in structures such as truss structure and ramen structure,
Or through a gusset plate at the ends of the reinforcing member, it is provided integrally with添板directly without, package insert plate and the bar and / or beam flanges on both sides to a pair of U-shaped connecting member of the and disposed,
Filling a filler between the flange portion and the U-shaped connecting member ,
A reinforcing member mounting structure in a structure, wherein the accessory plate and the U-shaped connecting member are connected by a bolt.

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