JPH0849344A - Member for reinforcing beam - Google Patents

Abstract

PURPOSE:To facilitate mounting work by mounting the main body of a reinforcing member in such a fashion that it extends between upper and lower flanges of an H section beam and forming a male screw part designed to fix a frame- work or the like with the tip of the reinforcing member. CONSTITUTION:A male screw part 22 is installed to upper and lower ends of a rod-like reinforcing member main body 25 so as to fix a framework 26 where the tip of the main body is tapered, thereby forming a reinforcing member 21. A mounting fitting 35 of a back nut 37 is placed in contact with an H section beam 27 so that both upper and lower ends of the reinforcing member 21 may be inserted into a flange of the beam 27, thereby threadedly fixing a nut 24 with the male screw part 22. Furthermore, an upper horizontal frame 31 of the framework 26 on the lower side is fastened and fixed with the male screw part 22 which projects downward to a lower flange by means of a nut 43. In addition, the male screw part 22, which projects upward to the upper flange, is fixed with the framework 26 on the upper side. This construction makes it possible to reduce the number of components and hence cut down cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing member for a beam such as H-section steel or channel steel having flanges at the top and bottom.

[0002]

2. Description of the Related Art In a beam of H-section steel or the like, when a column or a shaft assembly is fixed to the upper surface of the beam, it is necessary to provide a reinforcing member corresponding to the fixed portion for preventing buckling deformation of the beam. There is.

FIGS. 5 and 6 show a conventional example in which such a reinforcing member is provided. In the drawings, (1) is a vertical reinforcing plate, and horizontal mounting plates are provided at both upper and lower ends thereof. (2) (2) is fixed. On the other hand, (3) (3)
Is a fixing bolt for fixing the frame assembly (4) to the beam (5). First, the mounting plate (2) (2) is attached to the upper and lower flanges (6) and (6) of the beam (5). The reinforcing plate (1) is installed between the flanges (6) and (6) so as to abut against the side surface, and the upper and lower ends of the fixing bolts (3) and (3) are attached to the mounting plate (2).
(2) and the flanges (6), (6) are inserted into the bolt holes (7), (7) ... and installed on both sides of the reinforcing plate (1) and project from the flanges (6), (6). The shafts (not shown) are fixed to the upper and lower surfaces of the beam (5) at the tips of the bolts (3) (3).

[0004]

In the conventional reinforcing structure of the beam (5) described above, the fixing bolts (3) (3) and the reinforcing plate (1) are arranged close to each other in the portion for fixing the shaft assembly. This not only makes it difficult to install the bolts (3) that will be installed later, but also requires two types of parts, the reinforcing plate (1) and the installation bolts (3), which results in high cost as a whole. There is a drawback.

According to the present invention, the number of parts is reduced by eliminating the above-mentioned conventional drawbacks and making the reinforcing member for preventing the buckling deformation of the beam also serve as the fixing bolt for the frame assembly or the like. The purpose is to facilitate the mounting work and reduce the cost.

[0006]

In order to solve the above problems, according to the present invention, there is provided a reinforcing member for a beam having upper and lower flanges which are parallel to each other and which is attached across the upper and lower flanges. A main body and a male thread portion that is integrally provided at the tip of the main body of the reinforcing member and that projects outward from the bolt hole of the flange and that is used to fix the shaft assembly and other mounting members. To do.

In the above, according to the invention of claim 2,
The male screw portion is provided with a nut that is tightened on the inner surface side of the beam.

[0008]

According to the above-mentioned structure of the present invention, since the reinforcing member for the beam also serves as a fixing bolt for the frame assembly, no special reinforcing member is required.

[0009]

1 to 4, (21) is a reinforcing member of the present invention, and a male screw for fixing a shaft assembly (26) to the upper and lower ends of a rod-shaped reinforcing member main body (25). Portions (22) and (22) are formed. Furthermore, the tip of the male threaded portion (22) (22) has a tapered tip that facilitates insertion into a bolt hole.
(23) (23) are integrally formed. Also, the male screw part (22)
The nuts (24) and (24) for fixing to the beam (27) are screwed into the (22), respectively. The reinforcing member main body (25) has a diameter larger than that of the male screw portion (22) and has a cross section sufficient to support a load.

The frame assembly (26) of this embodiment has a structure in which a horizontal frame (31) made up of C channels and a vertical frame (32) are joined in a rectangular frame shape, and an end portion of the horizontal frame (31). A bolt hole (33) is formed in the.

(35) is for tightening because the end of the beam (36) in the direction perpendicular to the beam (27) to which the reinforcing member (21) is attached is joined to the side surface of this beam (5). Shows the metal fittings for attaching the back nut (37). The metal fitting (35) is made of a thin metal plate having elasticity, and the upper end thereof is horizontally bent to form a mounting portion (38). The mounting portion (38) is provided with a beam (27) made of H-shaped steel. Bolt holes formed in the upper flange (39)
Bolt holes (41) and (41) are formed in conformity with (40) and (40). In addition, the vertical body (42) has a web of beams (27).
The back nuts (37), (37), ... Are pre-mounted so as to fit the bolt holes (43), (43) ,.

In the above structure, first, the back nut mounting metal fitting (35) is made so that the main body portion (42) is on the web (42) side, and the mounting portion (38) at the upper end is a beam ( 27) abut on the lower surface of the flange (39) on the upper side so that the bolt hole (41) is aligned with the bolt hole (40) of the flange (39), and the upper end of the reinforcing member (21) is in the bolt hole (41). (40) Insert the lower end into the bolt hole (40) of the lower flange (39) in the same way as (41). In this state, rotate the nut (24) screwed into the male screw part (22) at the upper end of the reinforcing member (21) to rotate the back nut mounting bracket.
Tighten the mounting part (38) of (35) to the upper flange (39), and also tighten the lower nut (24) to the lower flange (39) to fix the reinforcing member. To do. And, to the male screw part (22) protruding below the lower flange (39), the upper horizontal frame of the lower frame assembly (26)
Tighten (31) with the nut (43) screwed to the male screw part (22), and similarly to the male screw part (22) protruding upward from the flange (39) on the upper side, the upper side shaft assembly ( 26) lower horizontal frame (3
1) is fixed in the same manner.

[0013]

As described above, in the present invention, in order to prevent buckling deformation of the beam, the reinforcing member mounted between the flanges of the beam also serves as a bolt for fixing the shaft assembly, Compared to the case where the reinforcing member and the fixing bolt are separately attached as in the conventional case, the number of parts can be reduced.

Moreover, by attaching the reinforcing member, the fixing bolt is also attached, and the disadvantage that the attaching work of the fixing bolt is difficult due to the reinforcing member is eliminated.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a reinforcing member mounting portion showing an embodiment of the present invention.

FIG. 2 is likewise an exploded perspective view of a mounting portion.

FIG. 3 is a perspective view showing a state where a reinforcing member is attached.

FIG. 4 is a perspective view of a reinforcing member.

FIG. 5 is a perspective view of a reinforcing member attachment portion showing a conventional example.

FIG. 6 is a perspective view of a reinforcing member and a frame fixing bolt.

[Explanation of symbols]

 (21) Reinforcement member (22) Male thread (24) Fixing nut (25) Reinforcement member body (26) Frame assembly (27) Beam (39) Flange

Claims (2)

[Claims] 1. A reinforcing member for a beam having upper and lower flanges that are parallel to each other, the reinforcing member main body being mounted across the upper and lower flanges, and the flange being integrally provided at the tip of the reinforcing member main body. And a male screw portion that is used to fix a mounting member such as a shaft assembly and protrudes outward from the bolt hole of the beam. 2. The beam reinforcing member according to claim 1, wherein the male screw portion is provided with a nut that is tightened inside the flange of the beam.