JP6775746B2 - Shaped steel - Google Patents

Description

The present invention relates to a shaped steel support is arranged inclined relative to the horizontal diagonal members.

Examples of this type of shaped steel that have been conventionally used include the configurations shown in Patent Document 1 and the like below. That is, in the conventional configuration, for example, H-shaped steel in which the upper flange and the lower flange are extended in parallel with each other is used as the horizontal member arranged so that the horizontal direction is the longitudinal direction of the purlin, purlin, eaves girder, etc. Be done. Above the horizontal member, a diagonal member that is inclined and extended with respect to the horizontal is arranged. The diagonal member is fixed to the upper flange of the horizontal member via a fixture.

Japanese Unexamined Patent Publication No. 2014-70419

In the conventional configuration as described above, since the upper flange and the lower flange extend parallel to each other, the upper surface of the upper flange is not parallel to the lower surface of the diagonal member when the lower flange extends horizontally. It becomes. For this reason, a fixture having a complicated structure is required, which increases the construction cost of the building.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a shaped steel which can eliminate the need for a fixture having a complicated structure and can reduce the construction cost of a building. It is to be.

The shape steel according to the present invention is a shape steel that supports a diagonal member that is inclined and extended with respect to the horizontal, and has a web and an upper flange and a lower flange that are connected to each other by the web, and the shape steel of the upper flange. At least part of it is made of deformed H-shaped steel that is inclined and extended with respect to the extending surface of the lower flange, and at least part of the upper flange is configured to extend along the inclination of the diagonal member. The upper flange is provided with a bend so that at least a part of the upper flange extends with an inclination with respect to the extending surface of the lower flange. It is arranged so as to sandwich the connection position with the upper flange, and the extension surface of the upper surface is interposed between the first and second inclined portions and the first and second inclined portions that intersect each other above the connecting position. A parallel portion extending parallel to the extending surface of the lower flange is provided, and the bent portion is a boundary between the first and second inclined portions and the parallel portion, and is a parallel portion when viewed from the side surface. The extending width of is narrower than the extending width of the lower flange .

According to the shaped steel of the present invention, at least a part of the upper flange extends with an inclination with respect to the extending surface of the lower flange, and at least a part of the upper flange extends along the inclination of the diagonal member. Therefore, the upper surface of at least a part of the upper flange can be parallel to the lower surface of the diagonal member. As a result, it is possible to eliminate the need for fixtures having a complicated structure, and it is possible to reduce the construction cost of the building.

It is a perspective view which shows the roof structure including the shaped steel by Embodiment 1 of this invention. It is a side view which shows the purlin of FIG. It is explanatory drawing which shows the manufacturing method of the purlin of FIG. It is a side view which shows the shaped steel by Embodiment 2 of this invention. It is a side view which shows the shaped steel by Embodiment 3 of this invention. It is a side view which shows the shaped steel by Embodiment 4 of this invention. It is a side view which shows the deformation example of the shaped steel of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a perspective view showing a roof structure including shaped steel according to the first embodiment of the present invention. The roof structure shown in FIG. 1 constitutes a sloping roof of a building such as a house. As shown in FIG. 1, the roof structure includes a plurality of beam members 1, bundle 2, purlin 3 and rafters 4.

The beam member 1 is a longitudinal member supported by a column (not shown), and extends so as to have a horizontal direction as a longitudinal direction. The bundle 2 is a longitudinal member erected on the beam member 1 and extends so that the vertical direction is the longitudinal direction. As the beam member 1 and the bundle 2, for example, a steel material such as H-shaped steel or wood can be used.

The purlin 3 is a longitudinal member supported by the beam member 1 via or directly from the bundle 2. Each purlin 3 extends along the eaves direction 5 so that the horizontal direction is the longitudinal direction. The eaves direction 5 is an extension direction of the eaves girder (not shown) connecting the beam members 1, and is a horizontal direction orthogonal to the extension direction of the beam members 1. Further, the purlins 3 are arranged at intervals from each other in the eaves building direction 6. The eaves building direction 6 is a direction in which the purlins (not shown) arranged at the top of the roof parallel to the eaves girder and the eaves girder are separated from each other, and is inclined with respect to the horizontal. In the present invention, a deformed H-section steel is used as the purlin 3 as will be described later with reference to the drawings.

The rafter 4 is a longitudinal member supported by the purlin 3. Each rafter 4 extends in the direction of the eaves building 6. Further, the rafters 4 are arranged at intervals from each other in the eaves direction 5. As the rafter 4, for example, a steel material such as a light channel steel or wood can be used. As is well known, a field board is stretched on the upper surface of the rafter 4. On the field board, for example, a roofing material such as a metal roofing material, a colonial or a roof tile is placed via a tarpaulin.

In the roof structure of the present embodiment, the rafters 4 correspond to diagonal members extending horizontally, and the purlin 3 corresponds to shaped steel supporting the diagonal members.

Next, FIG. 2 is a side view showing the purlin 3 of FIG. As shown in the figure, the purlin 3 is made of deformed H-shaped steel 7. The modified H-section steel 7 is an H-section steel having a web 70 and an upper flange 71 and a lower flange 72 connected to each other by the web 70, and at least a part of the upper flange 71 extends from the lower flange 72. It is an H-section steel deformed so as to be inclined and extend with respect to the surface. In ordinary H-section steel, the upper flange 71 and the lower flange 72 extend in parallel with each other.

In the present embodiment, the web 70 is provided with a bent portion 70a so that the upper flange 71 extends so as to be inclined with respect to the extending surface of the lower flange 72. The extending surface of the lower flange 72 can be understood as, for example, a plane on which the upper surface or the lower surface of the flat plate-shaped lower flange 72 extends, or a plane passing through the thickness center of the flat plate-shaped lower flange 72. .. The web 70 is provided with first and second straight portions 70b and 70c with the bent portion 70a interposed therebetween. The first straight line portion 70b extends orthogonally to the upper flange 71, and the second straight line portion 70c extends orthogonally to the lower flange 72.

In the roof structure shown in FIG. 1, the lower flange 72 extends horizontally. On the other hand, the upper flange 71 is inclined with respect to the extending surface of the lower flange 72 so as to extend along the inclination of the rafter 4 (oblique member). That is, the upper surface 71a of the upper flange 71 extends parallel to the lower surface 4a of the rafter 4. The lower surface 4a of the rafters 4 is placed on the upper surface 71a of the upper flange 71. The rafters 4 are directly fixed to the upper flange 71 by fixing members 8 such as bolts or fixing screws. As a result, it is possible to eliminate the need for fixtures having a complicated structure, and it is possible to reduce the construction cost of the building. However, a fixture having a simple structure such as an L-shaped bracket may be used to fix the rafters 4 to the upper flange 71.

Next, FIG. 3 is an explanatory diagram showing a manufacturing method of the purlin 3 of FIG. As shown in FIG. 3, the purlin 3 is manufactured using a bender die 9 having a gooseneck punch 90 and a die 91. As shown in FIG. 3A, ordinary H-section steel is arranged so that the web 70 is located between the gooseneck punch 90 and the die 91. Then, as shown in FIG. 3C, the web is pushed into the groove of the die 91 together with the tip of the gooseneck punch 90, so that the bent portion 70a is formed in the web 70.

In such a shaped steel, at least a part of the upper flange 71 is inclined with respect to the extending surface of the lower flange 72, and at least a part of the upper flange 71 is inclined of the rafter 4 (oblique member). Since it extends along, at least a part of the upper surface of the upper flange 71 can be parallel to the lower surface of the rafter 4. As a result, it is possible to eliminate the need for fixtures having a complicated structure, and it is possible to reduce the construction cost of the building.

Further, since the web 70 is provided with a bent portion 70a so that the upper flange 71 is inclined and extended with respect to the extending surface of the lower flange 72, it is possible to process ordinary H-shaped steel. It can be easily manufactured and the manufacturing cost can be kept low.

In the first embodiment, it is described that one bent portion 70a is provided on the web 70, but two or more bent portions may be provided on the web.

Embodiment 2.
FIG. 4 is a side view showing the shaped steel (main house 3) according to the second embodiment of the present invention. In the first embodiment, it has been described that the upper flange 71 is inclined with respect to the extending surface of the lower flange 72 by providing the bent portion 70a on the web 70, but as shown in FIG. The upper flange 71 may be fixed to the web 70 in a non-orthogonal state so that the upper flange 71 extends at an angle with respect to the extending surface of the lower flange 72. The upper flange 71 can be fixed to the web 70 by welding. Other configurations are the same as those in the first embodiment.

With this configuration, the appearance and structure of the shaped steel can be simplified. In addition, it can be manufactured in one process in the same manner as a normal H-shaped steel manufacturing process, and the manufacturing cost can be kept low.

Embodiment 3.
FIG. 5 is a side view showing the shaped steel (main house 3) according to the third embodiment of the present invention. As shown in FIG. 5, the upper flange 71 may be provided with a bent portion 71b so that a part of the upper flange 71 is inclined and extends with respect to the extending surface of the lower flange 72. Such a deformed H-section steel 7 can be manufactured by bender processing or roll forming. Other configurations are the same as those in the first embodiment.

With such a configuration, it can be easily manufactured by processing ordinary H-section steel, and the manufacturing cost can be suppressed to a low level. However, the upper flange 71 on which the bent portion 71b is formed may be fixed to the web 70.

In the third embodiment, it is described that one bent portion 71b is provided on the upper flange 71, but two or more bent portions may be provided on the upper flange.

Further, in the first to third embodiments, the main building 3 is described as corresponding to the shaped steel supporting the diagonal member, but the shaped steel in the present invention is not limited to the main building 3. The shaped steel made of the deformed H-shaped steel 7 as shown in FIGS. 2, 4 and 5 may be another member that supports diagonal members such as eaves girders and purlins of single-flow roofs.

Embodiment 4.
FIG. 6 is a side view showing the shaped steel according to the fourth embodiment of the present invention. The upper flange 71 of the deformed H-shaped steel 7 constituting the shaped steel of the present embodiment is inclined and extended with respect to the extending surface of the lower flange 72, respectively. A 712 is provided. The first and second inclined portions 711 and 712 are arranged so as to sandwich the connection position 73 between the web 70 and the upper flange 71. Further, the first and second inclined portions 711 and 712 are arranged adjacent to each other, and their upper surfaces 711a and 712a are provided so as to intersect each other above the connection position 73.

Next, FIG. 7 is a side view showing a modified example of the shaped steel of FIG. As shown in FIG. 7, a parallel portion 713 extending parallel to the extending surface of the lower flange 72 may be interposed between the first and second inclined portions 711 and 712. When the parallel portion 713 is interposed, the extension surfaces of the upper surfaces 711a and 712a of the first and second inclined portions 711 and 712 intersect with each other above the connection position 73.

The shaped steel made of the modified H-shaped steel 7 having the shape shown in FIGS. 6 and 7 can form a ridge in a roof structure in which inclined roofs are formed on both sides from a ridge such as a gable roof. The deformed H-shaped steel 7 having such a shape can be manufactured by performing bender processing or roll forming on the ordinary H-shaped steel, or by fixing the upper flange 71 on which the bent portion 71b is formed to the web 70. it can. Other configurations are the same as those in the first embodiment.

In this way, a roof structure in which inclined roofs are formed on both sides by providing the upper flange 71 with first and second inclined portions 711 and 712 in which the upper surface or the extension surface of the upper surface intersects each other above the connection position 73. The shaped steel of the present invention can also be used as the purlin of the present invention.

In the first to fourth embodiments, it is explained that the rafters 4 correspond to the diagonal members that are inclined and extended with respect to the horizontal. However, the diagonal members are not limited to the rafters, and the diagonal members are, for example, fields in the frame. The roof panel on which the main plate is stretched may be another member such as a frame of the roof panel in the roof structure used for construction.

Further, the first embodiment shows a mode in which the bent portion 70a is provided on the web 70, the second embodiment shows a mode in which the upper flange 71 is fixed to the web 70 in a non-orthogonal state, and the third embodiment shows a mode in which the upper flange 71 is fixed to the web 70. A mode in which the bent portion 71b is provided on the flange 71 is shown, and in the fourth embodiment, the first and second inclined portions 711 and 712 where the upper surface or the extension surface of the upper surface intersect each other above the connection position 73 are provided on the upper flange 71. Although the aspect to be provided is shown, the shaped steel of the present invention may have a configuration having at least two aspects of the first to fourth embodiments.

3 purlin (shaped steel)
4 Rafters (diagonal)
7 Deformed H-section steel 70 Web 71 Upper flange 711,712 1st and 2nd inclined parts 72 Lower flange

Claims (1)

A shaped steel that supports a diagonal member that is inclined with respect to the horizontal and extends.
It has a web and an upper flange and a lower flange connected to each other by the web, and at least a part of the upper flange is made of a deformed H-section steel extending at an angle with respect to the extending surface of the lower flange. ,
A shaped steel configured such that at least a portion of the upper flange extends along the slope of the diagonal member.
The upper flange is provided with a bent portion so that at least a part of the upper flange extends so as to be inclined with respect to the extending surface of the lower flange.
The upper flange has
The first and second inclined portions are arranged so as to sandwich the connection position between the web and the upper flange, and the extension surfaces of the upper surface intersect each other above the connection position.
An intervening between the first and second inclined portions, and a parallel portion extending in parallel with the extending surface of the lower flange is provided.
The bent portion is a boundary between the first and second inclined portions and the parallel portion.
When viewed from the side, the extending width of the parallel portion is narrower than the extending width of the lower flange.
Shaped steel.

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