JP2008291620A - Reinforcing metallic material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing metallic material capable of reinforcing a steel frame opening cross-sectional structural member. <P>SOLUTION: This reinforcing metallic material is composed of a reinforcing band adapted to a shape of the steel frame opening cross-sectional structural member, and a fastening means capable of fastening the reinforcing band in close contact with the steel frame cross-sectional structural member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a reinforcing hardware for reinforcing a steel frame open cross-section structural member.

  In a conventional reinforcing method, a hole is formed in a steel structure with a cross-section, and an angle member and a plate member are screwed together with bolts and joined together by welding or the like. There is known a method of welding a member at a joining portion of a steel tower and attaching and reinforcing a reinforcing plate to the joining portion by screwing. (Patent Document 1)

Therefore, there is a drawback that it is necessary to process an existing steel frame.
JP 2006-342517 A

  The present invention has been made in view of the above-described conventional drawbacks, and an object of the present invention is to provide a reinforcing hardware that can reinforce a steel open section structural member without processing an existing steel frame.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, the present invention is adapted to the shape of a steel open cross-section structural member such as a steel tower or a building frame, and at least a reinforcing band that can cover the open end of the steel open cross-section structural member without deformation. The reinforcement metal is comprised with the fastening means which clamp | tightens the said reinforcement band and can be made to contact | adhere to a steel-frame open cross-section structural member.

As is clear from the above description, the present invention has the following effects.
(1) A reinforcing band that conforms to the shape of a steel open cross-section structural member such as a steel tower or a building frame and that can cover at least the opening end of the steel open cross-section structural member without being deformed; Since it is comprised by the fastening means which can be closely_contact | adhered to an open cross-section structural member, it can be easily attached to steel frames, such as an existing steel tower and a building frame.
Therefore, processing such as drilling and welding is not required, existing members can be damaged, deterioration of the members due to construction can be prevented, and the cross section of the steel frame becomes a closed cross section. Stiffness can be improved.

(2) By using the closed section according to (1), the wind power coefficient of the member can be reduced, and the wind load can be reduced.

(3) According to the above (1), a tool for processing or the like is not necessary, and the reinforcing hardware can be easily carried.
Therefore, a temporary scaffold or the like is unnecessary, the temporary cost can be reduced, and the construction period can be shortened as compared with the conventional reinforcing method.

(4) According to the above (3), since it can be constructed only by manual work, it is possible to suppress noise from the construction machine, discharge of carbon dioxide, etc., and reduce the influence on the surrounding environment.

(5) According to the above (4), on-site machine work is unnecessary, the number of work occupations is small, and the number of safety inspection items can be reduced compared to the conventional one in terms of on-site management.

(6) In claim 2, the same effects as in the above (1) to (5) can be obtained, and the strength in the length direction of the steel frame can be reinforced by the reinforcing material.

  Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

In the first mode for carrying out the present invention shown in FIGS. 1 to 9,
Reference numeral 1 denotes a reinforcing band. 2 is a steel frame. 3 is a bolt. 4 is a nut. 5 is a steel frame opening. 6 is a rib material.

The reinforcing hardware having the above-described configuration has a generally U-shaped shape, and the inner surface of the reinforcing band (1) is adapted to the outer shape of the steel frame (2). One end of the reinforcing band (1) is provided with a bolt through-hole for connecting the reinforcing bands with the bolt (3). It is desirable to provide the bolt through hole in a horizontally long manner in order to improve the adhesion between the steel frame (2) and the reinforcing band. In the drawing, the bolt (3) and the nut (4) are used as the tightening means. However, if the screw hole of the female screw that can be screwed directly into the reinforcement band is provided, the nut (4) need not be used. . Moreover, when attaching with a volt | bolt (3) and a nut (4), it is good to use a toothed washer of a detent, a double nut, etc. in order to prevent falling off.
The material of the reinforcing band (1) is desirably a steel material, and when a material that is easily corroded is used, it is desirable to subject the material surface to a treatment such as hot dip galvanization, nickel plating, or chromium plating for rust prevention. It is desirable that the size of the reinforcing band (1) is such that the operator can carry it by hand. The reinforcing band (1) does not cover the entire circumference of the steel frame (2), and there is no problem as long as the steel band opening (5) can be covered. If the steel opening (5) is covered and adhered, and fixed, the cross section of the steel frame (2) becomes a closed cross section, and a strength higher than that of the open cross section can be obtained.
Further, as shown in FIG. 4, the auxiliary plate (7) and the rib material (6) may be provided inside the reinforcing band (1) as shown in FIGS. 6 to 9 inside the reinforcing band (1). . These auxiliary plates (7) and rib members (6) desirably have a shape that allows the steel frame (2) to be disposed between the inner surface of the reinforcing band (1). By providing the auxiliary plate (7) and the rib member (6) having such a shape, even if the steel frame is deformed, the auxiliary plate (7) and the rib member (6) are brought into contact with each other, and the steel plate (2) beyond Deformation can be prevented.
When using the present invention, two or more reinforcing bands (1) are attached to a steel frame (2) so as to cover one or a plurality of the steel frame opening (5) as required at a predetermined location of the steel frame (2). ) Are attached so that they do not deform, and the bolts (3) and nuts (4) are tightened.
{Different forms for carrying out the invention}

  Next, different modes for carrying out the present invention shown in FIGS. 10 to 36 will be described. In the description of these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted. To do.

In the second embodiment for carrying out the present invention shown in FIG. 10 to FIG. 22, the main difference from the first embodiment for carrying out the present invention is that the reinforcing band is placed around the entire circumference of the steel frame. It is the point formed so that it could be covered.
Further, as shown in FIGS. 19 to 22, a rib member (6) may be provided on the outer surface of the reinforcing band (1). Even with the reinforcing hardware formed as described above, the same effects as those of the best first embodiment for carrying out the present invention can be obtained, and by adjusting the tightening degree of the bolt (3), the steel frame ( 2) and the reinforcing band (1) can be more closely attached, and the strength of the reinforcing band (1) itself can be reinforced.
In the present embodiment, as a fastening means other than the bolt (3), a method of fastening using a small vise, connecting the auxiliary bands (1) by caulking, and adjusting the fastening condition may be considered. However, considering that the work is at a high place, a method of adjusting the tightening degree with the bolt (3) is desirable.

The third embodiment for carrying out the present invention shown in FIGS. 23, 24 and 27 to 36 differs from the second embodiment mainly in that a reinforcing material (8) is provided. (8) is made of the same material as the reinforcing band (1), and is preferably subjected to the same surface treatment.
Moreover, it is desirable that the reinforcing material (8) is longer in the length direction of the steel frame (2) than the reinforcing band (1). By using the reinforcing hardware configured as described above, the same effects as the second embodiment for carrying out the present invention can be obtained, and the steel frame (2) can be reinforced in the length direction. As shown in FIG. 29, the reinforcing member (8) may be supported by a plurality of reinforcing bands (1).
As shown in FIGS. 31 to 34, the reinforcing member (8) may be a cylinder, a cylinder, a prism, or the like instead of a plate material. Further, as shown in FIGS. 35 and 36, there is no problem even if the reinforcing material (8) is provided not on the steel frame opening (5) but on the outer periphery of the steel frame.
The form shown in FIGS. 27 and 28 is not a reinforcing band that covers the entire circumference of the steel frame (2), but the bolt (3) is screwed into a screw hole provided at the end of the reinforcing band (1), and the bolt By adjusting the tightening degree of (3), the steel frame (2) and the reinforcing band can be more closely attached.

The perspective view of the 1st Embodiment of this invention. Sectional drawing which shows the use condition of the 1st Embodiment of this invention. The perspective view which shows the usage type of the 1st Embodiment of this invention. The perspective view of the 1st Embodiment of this invention. Sectional drawing which shows the use condition of the 1st Embodiment of this invention. The perspective view of the 1st Embodiment of this invention. Sectional drawing which shows the use condition of the 1st Embodiment of this invention. The perspective view of the 1st Embodiment of this invention. Sectional drawing which shows the use condition of the 1st Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view which shows the usage pattern of the 2nd Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view of the 2nd Embodiment of this invention. Sectional drawing which shows the use condition of the 2nd Embodiment of this invention. The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention. The perspective view of the reinforcement metal fitting which this inventor considered . Sectional drawing which shows the use condition of the reinforcement metal hardware which this inventor considered . The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention. The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention. The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention. The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention. The perspective view of the 3rd Embodiment of this invention. Sectional drawing which shows the use condition of the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reinforcement band 2 Steel frame 3 Bolt 4 Nut 5 Steel frame opening 6 Rib material 7 Auxiliary plate 8 Reinforcement material

Claims (2)

  Fits the shape of the steel open cross-section structural member of the steel structure such as a steel tower, architectural framework, etc., and tightens the reinforcement band that can be covered without deforming at least the open end of the steel open cross-section structural member, A reinforcing hardware comprising a fastening means that can be brought into close contact with a steel open cross-section structural member, and capable of reinforcing the steel open cross-section structural member without processing an existing steel structure.   Fits the shape of the steel open cross-section structural member of the steel structure such as a steel tower, architectural framework, etc., and tightens the reinforcement band that can be covered without deforming at least the open end of the steel open cross-section structural member, Consists of a fastening means that can be brought into close contact with the steel open cross-section structural member and a reinforcing material that can improve the strength of the steel open cross-section structural member in the length direction, without processing the existing steel structure A reinforcing hardware capable of reinforcing a steel-frame open-section structural member.

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