JP6908404B2 - Slope roof structure and building - Google Patents

Description

The present invention relates to sloped roof structures and buildings.

As a roof type of a building such as a house, a sloped roof having a sloping roof surface such as a gabled roof, a hipped roof, a square roof, and a gabled roof has been conventionally known. As this type of sloped roof, Patent Document 1 discloses a building having a different sloped roof having two adjacent roof surfaces having different slopes from each other.

In the building described in Patent Document 1, a roof having a different slope so as to form a roof surface having a different slope by a different slope unit having a first slope beam and a second slope beam extending at different slope angles. It is configured to support the panel. However, Patent Document 1 does not specifically disclose the structure of the refracting portion formed at the ridgeline portion where the adjacent roof surfaces having different slopes intersect.

Japanese Unexamined Patent Publication No. 11-117399

Here, FIG. 5 shows a sloped roof structure in which the two roof panels 50 and 60 constituting the roof surfaces 51 and 61 having different slopes are fixed so as to be butted by the refracting portion 70. Specifically, the sloped roof structure shown in FIG. 5 includes face materials 52 and 62 forming the roof surfaces 51 and 61, and a plurality of hanging timbers 53 and 63 that support the face materials 52 and 62 from below. The hanging timbers 53 and 63 are provided with frame members 54 and 64 having a substantially U-shaped cross section, which are fixed to the tip end portion on the bending portion 70 side and extend along the bending portion 70. The roof panels 50 and 60 are directly or indirectly fixed to a frame member such as a column or a beam via a connecting member 71 or the like.

When a roof having a different slope is formed by using such roof panels 50 and 60, the end faces 54a and 64a of the frame members 54 and 64 are vertical surfaces extending in the vertical direction. The vertical end faces 54a and 64a may be brought into contact with each other, and the opposing frame members 54 and 64 may be fixed to each other by a fastening member 72 such as a bolt.

However, for example, when the slope of the roof surface 51 is relatively large as in the roof panel 50 of FIG. 5, the angle formed by the end surface 54a of the frame member 54, which is a vertical surface, and the roof surface 51 becomes small, and the frame member 54 There is a problem that the space for fastening and constructing the fastening member 72 such as a bolt for fixing the roof cannot be secured, and the workability is deteriorated.

Therefore, an object of the present invention is to provide a sloped roof structure and a building having a structure capable of improving the workability of the bent portion in a roof having a bent portion formed by adjacent roof surfaces having different slopes. Is what you do.

The present invention has been made to solve the above problems, and the sloped roof structure of the present invention has a sloped roof structure having different slopes and having a bending portion formed by two adjacent roof surfaces. And
Both of the two support portions that support the two face materials forming the two roof surfaces at the refracting portion are
It is characterized in that it is arranged so as not to exceed the surface that divides the angle formed by the two roof surfaces into two equal parts.

In the sloped roof structure of the present invention, the shape of the end portion of the two support portions located on both sides of the bisected surface is different from the bisected surface. It is preferable that the roof is symmetrical.

Further, in the sloped roof structure of the present invention, the support portion includes a hanging timber arranged below the face member and a frame member provided so as to cover the end portion of the hanging timber. Is preferable.

Further, in the sloped roof structure of the present invention, the frame material includes an upper flange portion, a lower flange portion, and a web portion that connects the upper flange portion and the lower flange portion.
It is preferable that the end portion of the hanging timber is arranged between the upper flange portion and the lower flange portion.

Further, in the sloped roof structure of the present invention, the refracting portion is preferably a corner ridge in a hipped roof.

Further, the building of the present invention is characterized by having any of the above-mentioned sloped roof structures.

According to the present invention, it is possible to provide a sloped roof structure and a building having a structure capable of improving the workability of the bent portion in a roof having a bent portion formed by adjacent roof surfaces having different slopes.

It is a perspective view which shows the building which has the sloped roof structure as one Embodiment of this invention. It is a top view of the building shown in FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing which shows the refracting part of the sloped roof structure as another embodiment of this invention. It is sectional drawing of the sloped roof structure illustrated for comparison.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same reference numerals are given to common members and parts in each figure.

FIG. 1 is a perspective view of a building 1 having a sloped roof structure as an embodiment of the present invention. FIG. 2 is a diagram showing a roof surface when the building 1 is viewed from above in the vertical direction. FIG. 3 is a cross-sectional view taken along the line AA of FIG.

First, the outline of the building 1 will be described. Building 1 is, for example, a two-story industrialized house having a steel frame, which is composed of a reinforced concrete foundation (not shown) and frame members such as columns and beams, and supports the roof 3. It is composed of an upper structure 2 having a frame and fixed to a foundation. The frame members that make up the frame frame are standardized in advance, and are manufactured in advance at the factory and then carried to the construction site for assembly.

The foundation is located below the superstructure 2 and supports the superstructure 2. The specific configuration of the foundation is not particularly limited, but may be, for example, a cloth foundation having a T-shaped cross section.

The frame frame of the superstructure 2 is composed of a plurality of columns, a plurality of beams, and the like. Exterior materials and the like constituting the outer peripheral wall are arranged on the outer peripheral portion of the frame frame. A roof 3 is provided on the upper part of the frame frame.

The outer peripheral wall of the building 1 includes, for example, an exterior material, a heat insulating material, and an interior material. As the exterior material, a panel of lightweight aerated concrete (hereinafter referred to as "ALC"; "ALC" is an abbreviation for "autoclaved light weight concrete") can be used, but the present invention is not limited thereto. For example, it is also possible to use a metal-based or ceramic-based siding having fire resistance, an extruded cement board, a wood panel material, or the like. Further, the heat insulating material is plate-shaped and can be formed of, for example, a foamed resin-based material such as phenol foam, polystyrene foam, urethane foam, etc., and is connected along the inner surface of the outer layer formed by the above-mentioned exterior material. By doing so, a heat insulating layer on the outer peripheral wall can be formed. As the interior material, for example, gypsum board can be used, and the inner layer of the outer peripheral wall can be formed by connecting to the inside of the heat insulating layer.

Hereinafter, the roof 3 constituting the sloped roof structure in the building 1 will be described in detail. The roof 3 of the present embodiment is a hipped roof having a plurality of sloped roof surfaces. Hereinafter, the hipped roof 3 will be described as an example, but the present invention can also be applied to roofs having different slopes in other types.

Specifically, the roof 3 shown in FIGS. 1 and 2 includes four sloped roof surfaces composed of a first roof surface 11, a second roof surface 21, a third roof surface 31, and a fourth roof surface 41. A corner ridge 4 as a bending portion is formed at a boundary portion (ridge line portion) of adjacent sloped roof surfaces. A large ridge 5 is formed at the boundary between the first roof surface 11 and the second roof surface 12.

In this example, the slope of the first roof surface 11 (inclination angle with respect to the horizontal plane) is smaller than the slope of the second roof surface 21, the third roof surface 31, and the fourth roof surface 41.

Here, FIG. 3 shows a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view of a plane having different slopes and orthogonal to the extending direction of the corner ridge 4 formed by the adjacent first roof surface 11 and the fourth roof surface 41.

The first roof surface 11 is formed by the upper surface of the face material 12 constituting the first roof panel 10. In this example, the face material 12 is a plate-shaped member that serves as a base material for the roof material, and a waterproof member (not shown) such as a waterproof sheet and a roof exposed to the outside are on the upper surface of the face material 12. Materials (not shown) and the like can be arranged. As the waterproof member, for example, a sheet-shaped member such as a sheet-shaped asphalt roofing can be used, but the waterproof member is not limited thereto. Further, as the roofing material, for example, cement-based roofing materials such as clay roof tiles and artificial slate, natural slate, metal roofing material and the like can be used, but the roofing material is not limited thereto. In the present embodiment, the upper surface of the face material 12 as the base material is the roof surface, but the upper surface of the roof material (the surface parallel to the face material 12) arranged above the face material 12 is the roof surface. May be.

The first roof panel 10 includes a hanging lumber 13 and a frame member 14 as support portions for supporting the face material 12 in the refracting portion. The hanging timber 13 is a long member that supports the face member 12 from below, and extends from the corner ridge 4 or the large ridge 5 toward the outer peripheral edge of the roof 3 on the underwater side. In this example, a plurality of hanging timbers 13 along the face member 12 are arranged substantially in parallel at predetermined intervals.

The frame member 14 includes an upper flange portion 14a, a lower flange portion 14b, and a web portion 14c that connects the upper flange portion 14a and the lower flange portion 14b. As shown in FIG. 3, the frame member 14 has a substantially U-shaped cross section and covers the end portion 13a of the hanging timber 13 on the corner ridge 4 side. Further, the frame member 14 extends along the corner ridge 4 and has a function as a corner tree. One frame member 14 may extend over the entire length of the corner ridge 4, or a plurality of frame members 14 divided into short lengths are arranged along the corner ridge 4 at intervals. You may. In this example, the face member 12 and the upper flange portion 14a of the frame member 14 are arranged so as to be adjacent to each other, but the present invention is not limited to this, and for example, the surface so as to cover the upper surface of the upper flange portion 14a. It is also possible to install the lumber 12.

Here, the surface C shown by the alternate long and short dash line in FIG. 3 is a virtual plane that divides the angle formed by the first roof surface 11 and the fourth roof surface 41 into two equal parts. The hanging timber 13 and the frame member 14 constituting the support portion are arranged so as not to exceed the virtual plane C. Specifically, in the present embodiment, the outer surface 14d (the surface opposite to the hanging timber 13) of the web portion 14c of the frame member 14 is arranged so as to be in contact with the virtual plane C.

The end portion 13a of the hanging timber 13 on the corner ridge 4 side is arranged so as to be sandwiched between the upper flange portion 14a and the lower flange portion 14b, and the tip surface 13b is formed along the inner surface of the web portion 14c. There is. The shape of the end portion 13a of the hanging timber 13 does not have to match the shape of the inner surface of the frame member 14. That is, there may be a space between the tip surface 13b and the inner surface of the web portion 14c.

The fourth roof surface 41 is formed by the upper surface of the face material 42 constituting the fourth roof panel 40. The fourth roof panel 40 includes a face material 42, a lumber 43, and a frame material 44, similarly to the first roof panel 10. The materials of the face materials 12, 42, the lumbers 13, 43, and the frame materials 14, 44 are not particularly limited.

The frame member 44 includes an upper flange portion 44a, a lower flange portion 44b, and a web portion 44c, similarly to the frame member 14. As shown in FIG. 3, the frame member 44 has a substantially U-shaped cross section, extends along the corner ridge 4, and has a function as a corner tree.

The hanging timber 43 and the frame member 44 constituting the support portion are arranged so as not to exceed the virtual plane C. Specifically, in the present embodiment, the outer surface 44d of the web portion 44c of the frame member 44 is arranged so as to be in contact with the virtual plane C. In this example, the face member 42 and the upper flange portion 44a of the frame member 44 are arranged so as to be adjacent to each other, but the present invention is not limited to this, and for example, the surface so as to cover the upper surface of the upper flange portion 44a. It is also possible to install the lumber 42.

The end portion 43a on the corner ridge 4 side of the hanging timber 43 is arranged so as to be sandwiched between the upper flange portion 44a and the lower flange portion 44b, and the tip surface 43b is formed along the inner surface of the web portion 44c. There is.

The frame member 44 is fixed to the frame member 14 by the fastening member 6. Specifically, in a state where the outer surface 44d of the web portion 44c and the outer surface 14d of the web portion 14c are in contact with each other on the virtual plane C, the bolts and nuts (fastening member 6) penetrating the web portions 14c and 44c together. ) Is fixed.

The first roof panel 10 and the fourth roof panel 40 are indirectly fixed to a frame member such as a column, a beam, a corner timber, or a bundle member via a connecting member 7. More specifically, the lower flange portion 14b of the frame member 14 and the lower flange portion 44b of the frame member 44 are fixed to the connecting member 7 by using the fastening member 6. The first roof panel 10 and the fourth roof panel 40 may be directly fixed to a frame member such as a column or a beam. Further, the frame members 14 and 44 are not indispensable, and the hanging timbers 13 and 43 may be directly fixed to the connecting member 7 or the frame frame.

In the sloped roof structure of the present embodiment, the hanging timbers 13, 43 and the frame members 14, 44, which form the support portions in the first roof panel 10 and the fourth roof panel 40, respectively, do not exceed the virtual plane C. It is located in. With such a configuration, it is possible to secure the space required for fastening the fastening member 6 on both sides (the first roof panel 10 side and the fourth roof panel 40 side) sandwiching the virtual plane C. Therefore, the fastening member 6 can be easily fastened from either the first roof panel 10 side or the fourth roof panel 40 side. As described above, according to the sloped roof structure of the present embodiment, it is possible to improve the workability of the bent portion (corner ridge 4 in this example) formed by the roof surface having a different slope.

Here, in the present embodiment, the frame member 14 and the frame member 44 located on both sides of the virtual plane C are symmetrical with respect to the virtual plane C, and similarly, the end portion 13a of the hanging timber 13 is formed. And the end portion 43a of the lumber 43 are symmetrical with respect to the virtual plane C. That is, the shape of the end portion of the support portion located on both sides of the virtual plane C on the refraction portion side is symmetrical with respect to the virtual plane C. As a result, the members can be standardized, so that the manufacturing cost of the members can be reduced. Further, since the space can be evenly secured on both sides of the refracting portion, the workability is further improved. The shapes of the frame member 14 and the frame member 44 do not necessarily have to be symmetrical with respect to the virtual plane C. Similarly, the shapes of the end portion 13a of the hanging timber 13 and the end portion 43a of the hanging timber 43 do not have to be symmetrical with respect to the virtual plane C.

FIG. 4 shows a sloped roof structure as another embodiment of the present invention. Similar to the embodiment shown in FIG. 3, the first roof panel 110 includes a face material 112, a lumber 113 and a frame member 114, and the fourth roof panel 140 includes a face material 142, a lumber 143 and a frame material 144. .. Further, the corner ridge 4 is formed by the first roof surface 111 and the fourth roof surface 141.

In the present embodiment, the outer surface 114d of the frame member 114 of the first roof panel 110 and the outer surface 144d of the frame member 144 of the fourth roof panel 140 are separated from each other except for the lower end portion. Further, the reinforcing member 8 is used to fix the frame member 114 and the frame member 144. Specifically, the reinforcing member 8 is arranged on the upper surface of the upper flange portion 114a of the frame member 114 and the upper flange portion 144a of the frame member 144 along the corner ridge 4, and is fixed by the fastening member 6. In this way, the reinforcing members 8 are arranged so as to overlap the upper portions of the two opposing frame members 114 and 144, and the roof panels 110 and 140 are fastened together by using the fastening member 6 to increase the connecting strength between the roof panels 110 and 140. can. The reinforcing member 8 may be fastened to the face material 112 and the face material 142 with the fastening member 6, and the face material 112 and the face material 142 may be connected to each other.

Further, the first roof panel 110 and the fourth roof panel 140 are indirectly fixed to the frame member via the connecting member 7. Similar to the previous embodiment, by using a fastening member 6, a lower flange 1 4 4b of the lower flange portion 114b and the frame material 144 of the frame member 114 are fixed to the connecting member 7.

Also in this embodiment, the shapes of the frame member 114 and the frame member 144 are symmetrical with respect to the virtual plane C. Further, the shapes of the end portion 113a of the hanging timber 113 and the end portion 143a of the hanging timber 143 are also symmetrical with respect to the virtual plane C. In this example, the face member 112 and the upper flange portion 114a of the frame member 114 are arranged so as to be adjacent to each other, but the present invention is not limited to this, and for example, the surface so as to cover the upper surface of the upper flange portion 114a. It is also possible to install the material 112. Similarly, the face material 142 can be installed so as to cover the upper surface of the upper flange portion 144a.

The building according to the present invention is not limited to the specific configuration shown in the above-described embodiment, and various modifications can be made without departing from the gist of the invention described in the claims. For example, the roof 3 of the building 1 described above is a hipped roof, but it can also be applied to other types of roofs such as a gabled roof, a square roof, and a gabled roof. Further, the reinforcing member 8 shown in FIG. 4 can also be applied to the sloped roof structure of the embodiment shown in FIG. That is, by arranging the reinforcing members 8 so as to overlap the upper portions of the two opposing frame members 14 and 44 and fastening them using the fastening member 6, the connecting strength between the roof panels 10 and 40 can be increased. Further, the case where the hanging wood, the face material, and the frame material are assembled as a roof panel in advance in a factory or the like has been described, but the present invention is not limited to this, and the hanging wood, the face material, the frame material, etc. Each member of the above may be fixed to the frame frame.

1: Building 2: Superstructure 3: Roof 4: Corner ridge (refractive part)
5: Large ridge 6: Fastening member 7: Connecting member 8: Connecting member 10, 110: First roof panel 11, 111: First roof surface 12, 112: Face material 13, 113: Lumber (support part)
13a, 113a: End 13b: Tip surface 14, 114: Frame material (support part)
14a, 114a: Upper flange portion 14b, 114b: Lower flange portion 14c, 114c: Web portion 14d, 114d: Outer surface 21: Second roof surface 31: Third roof surface 40, 140: Fourth roof panel 41, 141: First 4 Roof surface 42, 142: Face material 43, 143: Hanging wood (support part)
43a, 143a: Ends 44, 144: Frame material (support)
44a, 144a: Upper flange part 44b, 144b: Lower flange part 44c, 144c: Web part 44d, 144d: Outer surface 50, 60: Roof panel 51, 61: Roof surface 52, 62: Face material 53, 63: Lumber 54 , 64: Frame material 54a, 64a: End face 70: Refracting part 71: Connecting member 72: Fastening member

Claims (5)

A sloped roof structure having different slopes and having a refracting part formed by two adjacent roof surfaces.
Both of the two support portions that support the two face materials forming the two roof surfaces at the refracting portion are
It is arranged so as not to exceed the surface that divides the angle formed by the two roof surfaces into two equal parts.
The support portion includes a hanging timber arranged below the face member and a frame member provided so as to cover the end portion of the hanging timber.
The frame material includes an upper flange portion, a lower flange portion, and a web portion that connects the upper flange portion and the lower flange portion.
The end portion of the hanging timber is arranged between the upper flange portion and the lower flange portion.
A sloped roof structure, characterized in that the web portions of the two support portions are fixed to each other by a fastening member. A sloped roof structure having different slopes and having a refracting part formed by two adjacent roof surfaces.
Both of the two support portions that support the two face materials forming the two roof surfaces at the refracting portion are
It is arranged so as not to exceed the surface that divides the angle formed by the two roof surfaces into two equal parts.
The support portion includes a hanging timber arranged below the face member and a frame member provided so as to cover the end portion of the hanging timber.
The frame material includes an upper flange portion, a lower flange portion, and a web portion that connects the upper flange portion and the lower flange portion.
The end portion of the hanging timber is arranged between the upper flange portion and the lower flange portion.
A sloped roof structure, characterized in that the lower flange portions of the two support portions are fixed to the connecting member by a fastening member and fixed via the connecting member. The first or second aspect of the present invention, wherein the shape of the end portion of the two support portions located on both sides of the bisected surface is symmetrical with respect to the bisected surface. Slope roof structure. The sloped roof structure according to any one of claims 1 to 3 , wherein the refracting portion is a corner ridge in a hipped roof. A building having a sloped roof structure according to any one of claims 1 to 4.

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