JP2018100531A - Covering material fixing metal fitting and fixing structure of covering material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a covering material fixing metal fitting for improving workability when fixing a plate-shaped covering material to be installed on a surface of a section steel.SOLUTION: The covering material fixing metal fitting 1 is a metal fitting for fixing the first covering material 3 and the second covering material 4 to a long shape steel 2 having webs 2a and flanges 2b orthogonal to each other, and comprises a first holding portion 1a that holds the first covering material 3 between the first holding portion 1a and the flange 2b, a second holding portion 1b formed by bending one side end of the first holding portion 3 in a direction parallel to the web 2a and holding the second covering material 4 with the web 2a, and a third holding portion 1c extending from the middle in the longitudinal direction of the second holding portion 1b in the direction in which the first holding portion 1a projects and sandwiching the flange 2b.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a covering material fixing bracket for fixing a plate-shaped covering material installed on the surface of a shape steel, and a fixing structure thereof.

  Conventionally, the shape steel used for a building is provided with a covering material for maintaining predetermined fire resistance and heat insulation performance. There are various types of coating materials. Among them, coating materials obtained by molding inorganic fibers such as rock wool and glass wool into mats or plates are widely used and are widely used. These coating materials are often fixed to the shape steel by an adhesive, but common adhesives melt in the event of a fire, so if fire resistance is required, expensive fire resistant adhesives must be used. I had to. Therefore, in order to solve this problem, a method of fixing the covering material to the shape steel without using an adhesive has been proposed.

  For example, in the invention of Patent Document 1, a fiber mat to which a metal plate is fixed in advance is installed so as to surround four or three sides of a steel column or steel beam, and screws are driven into the metal plate to fix the fiber mats together. What keeps fireproof performance by doing is known.

  The invention of Patent Document 2 proposes a method for maintaining the fire resistance of a steel beam by covering the steel beam with a fireproof laminate and fixing the fireproof laminate to the steel beam with welding pins, bolts and nuts. ing.

  However, in the invention of Patent Document 1, a metal plate material for driving screws must be fixed to the fiber mat in advance, which may increase the cost. In both inventions, the covering material cannot be fixed to the shape steel without tools such as dedicated welders and electric screwdrivers. May be reduced.

JP 7-42270 A JP 2008-208625 A

  Then, this invention is made | formed in view of the subject mentioned above, Comprising: When fixing the plate-shaped coating | covering material installed in the surface of a shape steel, the coating | covering material fixing metal fitting which improves workability is provided. For the purpose.

  The first covering material fixing metal fitting according to the present invention is a plate-shaped first covering that abuts a surface of the flange opposite to the surface from which the web protrudes, on a long steel having a web and a flange orthogonal to each other. A covering material fixing bracket for fixing a plate-shaped second covering material that abuts on a material and the web and two surfaces forming a right angle of the flange, the first covering material holding the first covering material between the flange A holding part, a second holding part formed by bending one side end of the first holding part in a direction parallel to the web, and holding the second covering material between the web and the second holding And a third holding part that extends from the middle of the longitudinal direction of the part in a direction in which the first holding part protrudes and clamps the flange.

  In the second covering material fixing metal fitting according to the present invention, the second holding part is formed by bending an end part opposite to the first holding part side in the same direction as the first holding part. It has the piercing part which pierces a coating | covering material, It is characterized by the above-mentioned.

  The covering material fixing structure of the present invention is a covering material fixing structure for fixing a plate-like covering material installed on the surface of a shape steel, and is the long shape steel having a web and a flange orthogonal to each other. A plate-like first covering material that comes into contact with the surface of the flange opposite to the surface from which the web protrudes, and a plate-like second covering material that makes contact with two surfaces that form a right angle between the web and the flange; And a first covering material fixing bracket or a second covering material fixing bracket.

  In the fixing structure for a covering material according to the present invention, the first covering material and the second covering material are heat insulating boards.

  The covering material fixing structure according to the present invention is characterized in that the shape steel is a pillar material.

  The covering material fixing structure according to the present invention is characterized in that the shape steel is a beam material.

  According to the first covering material fixing metal fitting of the present invention, since the first holding member for holding the first covering material and the second holding member for holding the second covering material are provided, the flange and the web can be formed with one metal fitting. Each covering material to be installed can be fixed at the same time, and workability can be improved. Moreover, since the covering material fixing bracket can be fixed to the shape steel by sandwiching the flange of the shape steel at the third holding part, each covering material can be fixed to the shape steel without using a tool, Stable construction quality can be maintained even in confined spaces that are difficult to operate and in places where work is performed at high places. And since each coating | covering material can be fixed only with a metal fitting without using an adhesive agent, even if it does not use special adhesives, such as a fireproof adhesive agent, fire resistance performance can be maintained.

  According to the second covering material fixing bracket of the present invention, since the second holding portion has a piercing portion for piercing the second covering material, the second covering material can be more firmly fixed to the shape steel. Can do. In addition, when the shape steel is erected vertically like a pillar, the pierced portion supports the second covering material by piercing the second covering material, and the second covering material is caused by gravity. It is possible to prevent the downward sliding.

  According to the fixing structure of the covering material of the present invention, since the first covering material and the second covering material installed on the shape steel can be dry-fixed by the covering material fixing bracket, the fixing structure of the covering material excellent in workability Can be built.

  According to the fixing structure of the covering material of the present invention, since the covering material is a heat insulating board, the heat insulating performance and fire resistance performance of the steel column or the steel beam can be improved.

  According to the fixing structure of the covering material of the present invention, since the shape steel is a column, the first covering material and the second covering material can be used as the covering material of the steel column. Moreover, the steel column which has fire resistance performance can be formed by using each coating | covering material as a fireproof coating material of a steel column, and fixing each coating | covering material to a steel column with a coating material fixing bracket.

  According to the fixing structure of the covering material of the present invention, since the shaped steel is a beam, the first covering material and the second covering material can be used as the covering material of the steel beam. Further, by using each covering material as a fireproof covering material for a steel beam and fixing each covering material to the steel beam with a covering material fixing bracket, a steel beam having fire resistance performance can be formed.

Sectional drawing which shows the fixing structure of a coating | covering material. The cross-sectional perspective view which shows the fixing structure of a coating | covering material. The perspective view of a covering material fixing metal fitting. The exploded sectional view showing the fixing structure of a covering material. Sectional drawing which shows the fixing condition of the coating | covering material to L-shaped steel. Sectional drawing which shows the fixing condition of the coating | covering material to a channel steel.

  Hereinafter, the best embodiment of the covering material fixing bracket 1 will be described with reference to the drawings. As shown in FIG. 1 and FIG. 2, the covering material fixing bracket 1 is formed on a long shape steel 2 having a web 2 a and a flange 2 b that are orthogonal to each other, and an inner surface 21 that is a surface from which the web 2 a of the flange 2 b protrudes. On the other hand, a plate-shaped first covering material 3 that abuts against the outer surface 22 that is the opposite surface and a plate-like second covering material 4 that abuts against the two surfaces that form the right angle of the web 2a and the flange 2b. is there.

  As shown in FIGS. 1 and 3, the covering material fixing bracket 1 includes a first holding portion 1a that extends in parallel with the flange 2b and holds the first covering material 3 between the first holding member 1 and the first holding member 1b. A second holding part 1b formed by bending one side end of the part 1a in a direction parallel to the web 2a, and holding the second covering material 4 between the web 2a, and from the middle in the longitudinal direction of the second holding part 1b A third holding portion 1c provided in a position protruding in the width direction and extending in the protruding direction of the first holding portion 1a to sandwich the flange 2b.

  Although the 2nd coating | covering material 4 can be fixed to the structural steel 2 by contact | abutting the 2nd holding | maintenance part 1b, when fixing the 2nd coating | covering material 4 to the structural steel 2 more firmly, FIG.1 and FIG. 3, the end of the second holding portion 1b opposite to the end on the first holding portion 1a side is bent to form a piercing portion 1d for piercing the second covering material 4, and the piercing portion 1d may be pierced into the second covering material 4. The tip shape of the piercing portion 1d is not particularly limited, but it is desirable to provide acute unevenness so that the second covering material 4 can be pierced easily.

  The 3rd holding | maintenance part 1c is a part which clamps the inner surface 21 and the outer surface 22 from both sides, and as shown in FIG.1 and FIG.3, it is parallel to the web 2a from the both ends edge of the width direction of the 2nd holding | maintenance part 1b. A rising piece 11 extending in the direction, and a clip piece formed by bending the edge of the rising piece 11 on the piercing portion 1d side in a direction in which the piercing portion 1d protrudes and abutting against the inner surface 21 of the flange 2b 12 and a plate-like plate piece 13 formed by bending the edge of the rising piece 11 on the first holding portion 1a side in the direction in which the first holding portion 1a protrudes, and abutting against the outer surface 22 of the flange 2b; have. The clip piece 12 has a flange portion 12a that gradually approaches the plate piece 13 from the rising piece 11, and a guide portion that gradually separates from the tip of the flange portion 12a to the plate piece 13 and serves as a guide when being pushed into the flange 2b. 12b is formed. Further, the separation distance L1 from the surface of the plate piece 13 facing the clip piece 12 to the edge of the flange portion 12a on the guide portion 12b side is formed shorter than the plate thickness width L2 of the flange 2b.

  The material for the covering material fixing bracket 1 is preferably a galvanized steel plate or a stainless steel plate. If it is such a material, it will not burn out at the time of a fire, but peeling of each coating | covering material can be prevented. In addition, the material is not particularly limited to these materials as long as the same effect can be expected.

  Next, the covering material fixing structure 5 using the covering material fixing bracket 1 will be described. As shown in FIG. 1, the fixing structure 5 for a covering material abuts on a long section steel 2 having a web 2a and a flange 2b orthogonal to each other, and a surface opposite to the surface from which the web 2a of the flange 2b protrudes. The plate-shaped first covering material 3, the plate-shaped second covering material 4 that abuts on the two surfaces forming the right angle of the web 2 a and the flange 2 b, and the covering material fixing bracket 1, are installed on the surface of the shape steel 2. The plate-shaped covering materials 3 and 4 are fixed by the covering material fixing bracket 1.

  The section steel 2 is a long member having a web 2a and a flange 2b protruding from a side end in the width direction of the web 2a in a direction perpendicular to the web 2a. In FIG. 1 and the like, the section steel 2 is an H-section steel, but is not particularly limited, and may be a T-section steel. Further, if the rear surface of the shape steel 2 is tightly fixed to the wall surface material 6 or the like, the shape steel 2 in which the flange 2b is formed only in one direction like the L-shape steel shown in FIG. 5 or the groove-shape steel shown in FIG. But you can. The section steel 2 is a heavy section steel used mainly as a building structural material.

  The 1st coating | covering material 3 and the 2nd coating | covering material 4 are coating | covering materials like the heat insulation board installed along the longitudinal direction of a shape steel, or a fireproof coating material. The material of each of the covering materials 3 and 4 is not particularly limited as long as it is a member having heat insulation or fire resistance, but if it is formed by molding inorganic fibers such as rock wool or glass wool into a plate shape, Since each of the covering materials 3 and 4 can be securely fixed to the shape steel 2 with the covering material fixing bracket 1, it is preferable.

  Next, the construction procedure of the fixing structure 5 for the covering material will be described. As shown in FIGS. 2 and 4, first, the second covering material 4 is first installed along the longitudinal direction of the section steel 2 so as to be in close contact with the side surface 23 of the web 2a and the inner side surface 21 of the flange 2b. The covering material 3 is installed on the outer surface 22 of the flange 2b along the longitudinal direction of the flange 2b. And the guide part 12b of the 3rd holding | maintenance part 1c is inserted between the 2nd coating | covering material 4 and the inner surface 21 from the width direction of the flange 2b by hand, and the board | plate part 13 is attached to the 1st coating | coated material 3 from the width direction of the flange 2b. The third holding part 1c is pushed into the flange 2b until it is inserted between the outer side surfaces 22 and the rising piece 11 comes into contact with the side surface of the flange 2b. At this time, since the separation distance L1 is formed narrower than the plate thickness width L2 of the flange 2b as described above, the flange 2b is elastically sandwiched between the plate piece 13 and the clip piece 12. Become.

  When the third holding portion 1c is pushed into the flange 2b, the piercing portion 1d pierces the second covering material 4 at the same time. At this time, when the shape steel 2 is vertically long like a column, the piercing portion 1d can support the second covering material 4 above the piercing portion 1d, and the second covering material 4 is lowered by gravity. Can be prevented from falling off. Further, when the rising piece 11 is pushed in until it comes into contact with the side surface of the flange 2b, the first covering material 3 inevitably enters between the first holding portion 1a and the flange 2b, and the first holding portion 1a is connected to the flange 2b. The first covering material 3 can be held therebetween, and at the same time, the second holding portion 1b can contact the second covering material 4 and hold the second covering material 4 between the web 2a. Then, as shown in FIG. 2, the first covering material 3 and the second covering material 4 are fixed to the shape steel 2 by installing the covering material fixing bracket 1 at an appropriate interval in the longitudinal direction of the shape steel 2. be able to.

  The fixing structure 5 of the covering material formed in this way can fix the first covering material 3 and the second covering material 4 to the shape steel 2 with one metal fitting without using a tool. Even if it exists, construction can be performed reliably and construction quality can be improved. Moreover, work efficiency can be improved also when fixing each coating | covering material to the steel column and steel beam located in high place using an unstable stepladder and a standing foothold. Furthermore, since each coating | covering material is being fixed with the metal fixing metal fitting, it does not burn out at the time of a fire, and it can construct | assemble the fixing structure excellent in fireproof performance.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The present invention can be suitably used when fixing a plate-shaped covering material installed on the surface of a shaped steel.

DESCRIPTION OF SYMBOLS 1 Covering material fixing | fixed metal fitting 1a 1st holding | maintenance part 1b 2nd holding | maintenance part 1c 3rd holding | maintenance part 1d Piercing part 2 Shaped steel 2a Web 2b Flange 3 1st coating | covering material 4 2nd coating | covering material 5 Fixing structure of coating | covering material

The first covering material fixing metal fitting according to the present invention is a plate-shaped first covering that abuts a surface of the flange opposite to the surface from which the web protrudes, on a long steel having a web and a flange orthogonal to each other. A covering material fixing bracket for fixing a plate-shaped second covering material that is housed in a space formed by the material and the web and the flange and abuts against two surfaces forming a right angle between the web and the flange, the flange A first holding part for holding the first covering material between the first holding part and one side end of the first holding part in a direction parallel to the web. A second holding portion that holds the material, and a third holding portion that extends from the middle in the longitudinal direction of the second holding portion in a direction in which the first holding portion protrudes and clamps the flange. the second holding portion, opposite the first holding portion Having a piercing part for piercing the second covering material formed by bending the part in the same direction as the first holding part, and the distance between the piercing part and the third holding part is It is longer than the distance between the first holding part and the third holding part, and the length from the proximal end to the distal end of the piercing part is substantially the same as the length from the proximal end to the distal end of the first holding part. It is characterized by being.

The covering material fixing structure of the present invention is a covering material fixing structure for fixing a plate-like covering material installed on the surface of a shape steel, and is the long shape steel having a web and a flange orthogonal to each other. A plate-shaped first covering material that abuts the surface of the flange opposite to the surface from which the web projects, and a space formed by the web and the flange, and forms a right angle between the web and the flange. It is characterized by comprising a plate-like second covering material abutting against two surfaces and a first covering material fixing bracket.

According to the first covering material fixing metal fitting of the present invention, since the first holding member for holding the first covering material and the second holding member for holding the second covering material are provided, the flange and the web can be formed with one metal fitting. Each covering material to be installed can be fixed at the same time, and workability can be improved. Moreover, since the covering material fixing bracket can be fixed to the shape steel by sandwiching the flange of the shape steel at the third holding part, each covering material can be fixed to the shape steel without using a tool, Stable construction quality can be maintained even in confined spaces that are difficult to operate and in places where work is performed at high places. And since each coating | covering material can be fixed only with a metal fitting without using an adhesive agent, even if it does not use special adhesives, such as a fireproof adhesive agent, fire resistance performance can be maintained. Furthermore, since the 2nd holding | maintenance part has a piercing part which pierces the 2nd coating | covering material, it can fix a 2nd coating | covering material to a shape steel more firmly. In addition, when the shape steel is erected vertically like a pillar, the pierced portion supports the second covering material by piercing the second covering material, and the second covering material is caused by gravity. It is possible to prevent the downward sliding.

Claims (6)

A long shaped steel having a web and a flange orthogonal to each other, a plate-shaped first covering material that abuts the surface of the flange opposite to the surface from which the web projects, and a right angle between the web and the flange 2 A covering material fixing bracket for fixing a plate-shaped second covering material that comes into contact with the surface,
A first holding portion for holding the first covering material between the flange and
A second holding portion formed by bending one side end of the first holding portion in a direction parallel to the web, and holding the second covering material between the web and the web;
A covering material fixing bracket, comprising: a third holding portion that extends from a middle in a longitudinal direction of the second holding portion in a direction in which the first holding portion protrudes and sandwiches the flange.   The second holding part has a piercing part for piercing the second covering material formed by bending an end opposite to the first holding part side in the same direction as the first holding part. The covering material fixing metal fitting according to claim 1, wherein: A fixing structure of a covering material for fixing a plate-shaped covering material installed on the surface of a shape steel,
The long section steel having a web and a flange perpendicular to each other;
A plate-like first covering material that abuts against the surface of the flange opposite to the surface from which the web projects;
A plate-like second covering material that comes into contact with two surfaces forming a right angle of the web and the flange;
A covering material fixing structure according to claim 1 or 2, further comprising a covering material fixing metal fitting.   The said 1st coating | covering material and said 2nd coating | covering material are heat insulation boards, The fixing structure of the coating | covering material of Claim 3 characterized by the above-mentioned.   The covering structure fixing structure according to claim 3 or 4, wherein the shape steel is a pillar material.   The said structural steel is a beam material, The fixing structure of the coating | covering material of Claim 3 or Claim 4 characterized by the above-mentioned.

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