JP6928421B2 - Roof structure - Google Patents

Description

The present invention relates to a roof structure, and more particularly to a roof structure using a climbing beam.

Patent Document 1 discloses a roof structure in which a nail or the like is driven into a field board placed on a climbing beam to connect the climbing beam and the field board.

Japanese Unexamined Patent Publication No. 2007-40039

In the roof structure described in Patent Document 1, it is necessary to use a thick field board in order to secure the horizontal rigidity of the roof surface, and therefore, there is a problem that the weight of the roof becomes large.

An object of the present invention is to propose a roof structure capable of ensuring the horizontal rigidity of the roof surface and reducing the weight.

The roof structure of the present invention includes a hut structure, a roof base arranged on the hut structure, and a fixture, and the hut structure spans a purlin, an eaves girder, and the purlin and the eaves girder. It has a plurality of climbing beams arranged, and the roof base is composed of a plurality of sandwich panels attached to the plurality of climbing beams, and the sandwich panel is a core material between a pair of metal outer skins. Ri panels der disposed, said fixture through said pair of metal covering of the sandwich panels, characterized in that it is fixed to the climbing beams.

The roof structure of the present invention can secure the horizontal rigidity of the roof surface and reduce the weight.

It is a perspective view which shows the building provided with the roof structure of one Embodiment of this invention. It is a partially cutaway perspective view which shows an example of the sandwich panel which the roof structure has the same above. FIG. 1A is a view showing a portion, FIG. 3A is a plan view, FIG. 3B is a cross-sectional view taken along the line bb of FIG. 3A, and FIG. 3C is a cross-sectional view taken along the line cc of FIG. 3A. .. 4A is a cross-sectional view taken along the line dd of FIG. 3A, and FIG. 4B is a cross-sectional view taken along the line ee of FIG. 3A.

As shown in FIG. 1, the roof structure of one embodiment of the present invention is suitably adopted for small and medium-sized buildings such as general houses, stores, and meeting places, and a roof using a climbing beam 5. It is a structure.

The roof structure includes a hut structure 1 and a roof base 2 arranged on the hut structure 1. The hut structure 1 has a purlin 3, an eaves girder 4, and a plurality of climbing beams 5 arranged over the purlin 3 and the eaves girder 4. Further, the shed assembly 1 includes a shed beam 6 and a shed bundle 7. The hut assembly 1 may not include either the hut beams 6 or the hut bundles 7. In the following, based on the state shown in FIG. 1, the side where the eaves girder 4 is located with respect to the purlin 3 is the water side, the opposite side is the water side, and the direction in which the plurality of climbing beams 5 are lined up is the left-right direction. Each configuration will be described. In FIG. 1, the direction indicated by the arrow X1 is the water upper side, the direction indicated by the arrow Y1 is the right direction, and the direction indicated by the arrow Z1 is the upward direction.

In the hut structure 1 of the present embodiment, the plurality of climbing beams 5 are arranged at a predetermined distance in the left-right direction. Here, the predetermined distance is, for example, 910 mm. The climbing beam 5 is, for example, a square lumber having a left-right width of 105 mm and a height of 105 mm in the vertical direction. The distance between the climbing beams 5 adjacent to the left and right and the size of the climbing beam 5 are not limited to the above distance and size.

The upper end of each climbing beam 5 is fixed on the purlin 3, and the portion slightly above the water side is fixed on the eaves girder 4. The climbing beam 5 is fixed to the purlin 3 or the eaves girder 4 by striking a plurality of (for example, three) fixing tools such as screws from above. The screw used for fixing the climbing beam 5 has, for example, a total length of 205 mm, a diameter of the shaft portion of 6 mm or 8 mm, and a diameter of the head portion larger than the diameter of the shaft portion.

By fixing the climbing beam 5 by striking a fixture from above, for example, an L-shaped metal fitting is attached to the side surface of the climbing beam 5 and the upper surface of the purlin 3 or the eaves girder 4 with screws or the like and fixed. It is possible to reduce the number of fixtures to be used and shorten the construction time as compared with the case of using the above.

Anti-rolling members 30 are attached between the two climbing beams 5 adjacent to each other in the left-right direction on the purlin 3 and the eaves girder 4, respectively (see FIGS. 3A to 3C). The anti-rolling material 30 is a square lumber having the same length as the distance between two climbing beams 5 adjacent to each other in the left-right direction. The anti-roll member 30 is installed so that the end faces in the longitudinal direction (that is, the left and right end faces) come into contact with the left and right side surfaces of the climbing beam 5, thereby suppressing the climbing beam 5 from falling in the left-right direction.

The building frame 100 shown in FIG. 1 further includes a hut structure 11 having rafters 8 in addition to the hut structure 1 having a climbing beam 5. The hut assembly 11 includes a purlin 13, an eaves girder 14, a main building 12, a plurality of rafters 8 arranged over the purlin 13, the purlin 12, and the eaves girder 14, a hut beam 16, and a hut bundle 17. Have. In the present embodiment, the purlin 13 is a horizontal member passed between the through columns. The shed bunch 17 supports the purlin 12.

In the hut assembly 11 of the present embodiment, the plurality of rafters 8 are arranged at a certain distance in the left-right direction. Here, the constant distance is, for example, 455 mm. The rafter 8 is, for example, a square lumber having a left-right width of 45 mm and a height of 60 mm in the vertical direction. The distance between the rafters 8 adjacent to the left and right and the size of the rafters 8 are not limited to the above distance and size, but the distance between the rafters 8 adjacent to the left and right is larger than the distance between the climbing beams 5 adjacent to the left and right. Also short, the size of the rafters 8 is smaller than the size of the climbing beams 5.

In each rafter 8, the upper end of the water is fixed on the purlin 13, the part slightly above the water side is fixed on the eaves girder 14, and the upper part of the water is fixed on the eaves girder 14. The central part in the underwater direction is fixed on the main building 12. The rafter 8 is fixed to the purlin 13 or the purlin 12 or the eaves girder 14 by striking a fixture such as a screw from above. The fixtures used to fix the rafters 8 are smaller in thickness and length than the fixtures used to fix the climbing beams 5.

The skeleton 100 further includes a shaft assembly 18, a floor assembly 19, and a foundation 20. The framework 18 has through columns, pipe columns, studs, bases, trunk differences, piercings, braces, and the like. The floor structure 19 has a base, obiki, joists, floor bundles, second-floor beams, small beams, flint beams, and the like. The skeleton 100 is formed by a wooden frame construction method, a lightweight steel frame construction method, or the like, but may be formed by a construction method other than these.

The roof base 2 is composed of a plurality of sandwich panels 9 attached to a plurality of climbing beams 5. As shown in FIG. 2, the sandwich panel 9 is a panel in which a core material 92 is arranged between a pair of metal outer skins 90 and 91.

Specifically, the metal outer skins 90 and 91 are formed by rolling or bending a metal plate into a desired shape. The thickness of the metal plate is, for example, about 0.27 to 1.6 mm. The metal plate includes, but is not limited to, a steel plate, a painted steel plate, a galvanized steel plate, an aluminum-zinc alloy plated steel plate, and the like.

The core material 92 is a resin foam or a fibrous inorganic material or a combination thereof. The core material 92 is a member having heat insulating properties. The resin foam is, for example, polyisocyanurate foam, urethane foam, phenol foam, etc. having a ^{density of 40 to 60 kg / m 3.} The resin foam is formed, for example, by injecting a foamable resin liquid between a pair of metal outer skins 90 and 91 and foaming the resin foam. The resin foam may be molded into a plate shape, and in this case, the resin foam is attached to the metal outer skins 90 and 91 by adhesion.

The fibrous inorganic material is, for example, a plurality of blocks obtained by solidifying rock wool, glass wool, or the like with a binder or the like and arranging them in a single plate shape. The fibrous inorganic material is attached to the metal outer skins 90 and 91 by adhesion, for example.

Further, the core material 92 is a combination of a layer made of a fibrous inorganic material and a layer made of a resin foam laminated in the thickness direction of the sandwich panel 9 (the direction in which the metal outer skins 90 and 91 are lined up). May be good.

Further, as the core material 92 located at the peripheral end of the sandwich panel 9, a refractory core material having higher fire resistance than the fibrous inorganic material or the resin foam may be used. In this case, the refractory core material is, for example, an inorganic material such as gypsum or calcium silicate.

The sandwich panel 9 has a rectangular plate shape, has a fitting convex portion 93 at one end in the lateral direction, and has a fitting recess 94 at the other end in the lateral direction. The fitting convex portion 93 and the fitting concave portion 94 are provided at each end of the sandwich panel 9 in the lateral direction over the longitudinal direction, respectively. A packing 95 is arranged at the bottom of the fitting recess 94. The sandwich panel 9 is used horizontally so that the longitudinal direction is parallel to the left-right direction. That is, in the present embodiment, the sandwich panel 9 is attached to the climbing beam 5 in a posture in which the fitting convex portion 93 is located at the end on the water side and the fitting recess 94 is located at the end on the water side. Used.

The sandwich panel 9 has, for example, a length in the longitudinal direction (left-right direction) of 1820 mm, a width in the lateral direction (water-water-downward direction) of 910 mm, and a thickness of 35 mm, 45 mm, or 60 mm. The sandwich panel 9 may have a size other than the above.

The sandwich panel 9 is attached to the climbing beam 5 by using a fixture 10 such as a screw (see FIG. 3A). The fixture 10 is, for example, a screw having a total length of 80 mm, a diameter of a shaft portion of 5.5 mm, and a diameter of a head portion larger than the diameter of the shaft portion. The fixture 10 is used so as to penetrate the pair of metal outer skins 90 and 91 and fix the tip portion to the climbing beam 5.

When the sandwich panel 9 is used as the roof base 2, the sandwich panel 9 can secure a certain level of horizontal rigidity on the roof surface, and is lighter than a structural plywood having a thickness having the same level of horizontal rigidity. It has become.

Subsequently, an example of the construction procedure of the roof structure of the present embodiment will be described.

First, a plurality of sandwich panels 9 are placed side by side in a row in the left-right direction on a plurality of climbing beams 5 arranged in the left-right direction of the hut assembly 1. At this time, each sandwich panel 9 is arranged so as to span at least two climbing beams 5 adjacent to each other in the left-right direction. After that, each sandwich panel 9 is fixed to each climbing beam 5 located below by driving the fixture 10 from above. At this time, the left and right ends of each sandwich panel 9 are fixed to the climbing beams 5 located below the respective sandwich panels 9.

In the above procedure, a plurality of sandwich panels 9 are installed in a row so as to extend from the climbing beam 5 located at the left end of the plurality of climbing beams 5 to the climbing beam 5 located at the right end. The installation of the sandwich panel 9 in a row is performed from the lower end of each climbing beam 5 to the upper end of the water.

In the two rows of sandwich panels 9 adjacent to each other in the water-water-down direction, the positions of the left and right ends of the sandwich panel 9 in the water-up row and the positions of the left and right ends of the sandwich panel 9 in the water-side row are located. , Installed so that it shifts in the left-right direction.

Here, the two sandwich panels 9 adjacent to each other in the water-water-downward direction are connected by fitting the fitting convex portion 93 and the fitting concave portion 94 as shown in FIG. 4A. At this time, the fitting convex portion 93 and the fitting concave portion 94 are brought into close contact with each other via the packing 95. Further, as shown in FIG. 4B, the two sandwich panels 9 adjacent to each other in the left-right direction are connected by abutting the opposite ends in the left-right direction.

As described above, a plurality of sandwich panels 9 are installed on the entire plurality of climbing beams 5. After that, the roofing material is installed on the entire plurality of sandwich panels 9 installed on the climbing beam 5. After that, roofing materials such as roof tiles, metal roofing materials, and slate boards are installed on the roofing material to form a roof.

On the other hand, a plurality of sandwich panels 9 are installed on the plurality of rafters 8 arranged in the left-right direction of the hut assembly 11 in the same procedure as the installation of the sandwich panels 9 on the plurality of climbing beams 5 described above. NS. Here, each sandwich panel 9 is installed so as to span a plurality of (for example, five) rafters 8 adjacent to each other in the left-right direction. Here, the number of rafters 8 located below one sandwich panel 9 is larger than the number of climbing beams 5 located below one sandwich panel 9.

Each sandwich panel 9 is fixed to each rafter 8 located below. At this time, each sandwich panel 9 is fixed to the rafters 8 whose left and right ends are located below each. The two rows of sandwich panels 9 adjacent to each other on the rafters 8 in the water-water-down direction also have the positions of the left and right ends of the sandwich panel 9 in the water-up row and the left-right ends of the sandwich panel 9 in the water-side row. Is installed so that the position of is shifted in the left-right direction.

After installing the plurality of sandwich panels 9 on the entire plurality of rafters 8, the roofing material is installed on the entire surface of the plurality of sandwich panels 9. After that, roofing materials such as roof tiles, metal roofing materials, and slate boards are installed on the roofing material to form a roof.

Further, a bearing wall is formed by installing a plurality of sandwich panels 9 as an outer wall base on the outdoor side of the framework 18. After that, the outer wall of the bearing wall is formed by applying a decorative finish such as painting, tiled, or ceramic siding on the outdoor surface of the sandwich panel 9 fixed to the framework 18. The sandwich panels 9 may also be attached to the outdoor sides of the hut beams 6 and 16 of the hut structures 1 and 11 and the hut bundles 7 and 17 to form a bearing wall.

Further, a load-bearing floor is formed by installing the sandwich panel 9 as a floor base plate on the floor structure 19. After that, the floor is formed by installing a finishing material such as a decorative veneer, a resin flooring material, and a carpet on the sandwich panel 9 fixed to the flooring 19.

The roof structure of the present embodiment described above is characterized by having the following configurations.

That is, the roof structure of the present embodiment includes a hut structure 1 and a roof base 2 arranged on the hut structure 1. The hut structure 1 has a purlin 3, an eaves girder 4, and a plurality of climbing beams 5 arranged over the purlin 3 and the eaves girder 4. The roof base 2 is composed of a plurality of sandwich panels 9 attached to a plurality of climbing beams 5. The sandwich panel 9 is a panel in which the core material 92 is arranged between the pair of metal outer skins 90 and 91.

As described above, in the roof structure of the present embodiment, the roof base 2 mounted on the climbing beam 5 of the hut structure 1 is not a commonly used structural plywood, but a pair of metal outer skins 90, 91. It is composed of a sandwich panel 9 in which a core material 92 is arranged between them. Here, since the outer skins of the front surface and the back surface of the sandwich panel 9 are each made of metal, it is possible to secure a certain strength while suppressing the thickness. Therefore, according to the roof structure of the present embodiment, it is possible to reduce the weight and secure the horizontal rigidity of the roof surface.

Further, the roof structure of the present embodiment includes the following configurations in addition to the above configurations.

That is, in the roof structure of the present embodiment, the core material 92 is a resin foam, a fibrous inorganic material, or a combination thereof.

By providing the above configuration, the roof structure of the present embodiment can form the roof base 2 with the sandwich panel 9 having heat insulating properties, and separately from the roof base 2, materials for ensuring heat insulating properties and the like. No construction is required. Here, the material for ensuring the heat insulating property is, for example, a heat insulating material, a plywood as a base of the heat insulating material, a base wood for fastening the plywood, etc., and these materials are heavy and have heat insulating properties. The construction to secure it is complicated. However, since the roof structure of the present embodiment does not require materials or construction for ensuring heat insulation, the construction period and construction cost can be suppressed.

Further, the roof structure of the present embodiment includes the following configurations in addition to the above configurations.

That is, the roof structure of the present embodiment further includes a fixture 10 for fixing the sandwich panel 9 to the climbing beam 5. In the roof structure of the present embodiment, the fixture 10 penetrates the pair of metal outer skins 90 and 91 of the sandwich panel 9 and is fixed to the climbing beam 5.

By providing the above configuration, the roof structure of the present embodiment can persistently resist this external force when a large external force is applied in the horizontal direction due to an earthquake or the like.

Further, in the building provided with the roof structure of the present embodiment, in addition to the need for materials and construction for ensuring heat insulation, the ceiling material and construction for partitioning the interior and the attic are not required, and climbing is not required. The back surface (lower surface) of the sandwich panel 9 fixed to the beam 5 can be used as a design surface that can be seen from the room.

Further, in the roof structure of the present embodiment described above, the hut structure 1 is made of climbing beams 5, and the roof base 2 is made of a metal outer skin sandwich panel 9, so that the main house and the hut bundle supporting the main house can be omitted. The construction time and construction cost can be reduced by this amount.

Further, in the building frame 100 of the present embodiment, since the strength of the roof surface is increased by using the sandwich panel 9 whose outer skin is made of metal as the roof base 2, the bending of the purlin 3 and the eaves girder 4 is the cause. Deformation of the skeleton 100 is unlikely to occur, and it is possible to omit the flint beam from the floor structure 19.

Further, in the roof structure in which the sandwich panel 9 whose outer skin is made of metal is attached to the climbing beam 5, the bending of the climbing beam 5 and the purlin 3 can be suppressed, and the upper end of the framework 18 and the bearing wall is large toward the outdoor side. It is possible to suppress the application of force.

The building frame 100 of the embodiment shown in FIG. 1 includes a hut structure 11 using rafters 8 in addition to the hut structure 1 using climbing beams 5, but the hut structure 11 using rafters 8 is provided. It may not be provided. In the hut assembly 1 using the climbing beam 5, the sandwich panel 9 can be fixed with a thick and large fixture as compared with the hut assembly 11 using the rafters 8, and the sandwich panel 9 is firmly fixed with a small number of pieces. be able to. Further, the hut assembly 1 using the climbing beam 5 can reduce the construction of striking a fixture such as a screw as compared with the hut assembly 11 using the rafters 8, and can reduce the construction time and the construction cost. Further, in the hut structure 1 using the climbing beams 5, the sandwich panel 9 is widely exposed from between the climbing beams 5 adjacent to each other in the left-right direction toward the indoor space on the second floor, as compared with the hut structure 11 using the rafters 8. It can be done and the inside view can be refreshed.

Although the present invention has been described above based on the embodiments shown in the accompanying drawings, the present invention is not limited to the above-described embodiments, and appropriate design changes can be made within the scope of the present invention. Is.

1 Hut assembly 2 Roof base 3 Rafters 4 Eaves girder 5 Climbing beam 9 Sandwich panel 10 Fixture 90 Metal outer skin 91 Metal outer skin 92 Core material

Claims (2)

With the hut
The roof base placed on the hut and
With fixtures,
The hut structure
It has a purlin, an eaves girder, and a plurality of climbing beams arranged over the purlin and the eaves girder and connected only through the purlin and the eaves girder.
The roof base is
It is composed of a plurality of sandwich panels attached to the plurality of climbing beams.
The sandwich panel is a panel in which a core material is arranged between a pair of metal outer skins.
The fixture penetrates the pair of metal outer skins of the sandwich panel and is fixed to the climbing beam .
Roof structure on the eaves digits, characterized by Rukoto cleat member is provided on the climbing Harima two adjacent. The roof structure according to claim 1, wherein the core material is a resin foam, a fibrous inorganic material, or a combination thereof .

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