JP2806754B2 - Roof panel and roof structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof panel and a roof structure, and more particularly to a roof panel and a roof structure which are lighter in weight.

[0002]

2. Description of the Related Art A roof structure in which the roof of a building is constituted by a plurality of divided roof panels is disclosed in
Japanese Patent Application Laid-Open No. 134224/1984 and Japanese Patent Application Laid-Open No. 55-59256. This roof structure is, for example, a box-shaped building unit 1 having a ceiling beam 2 as shown in FIG.
Ceiling beam 2 on the outer wall side of the unit building 3 constructed by juxtaposing
b and the ceiling beam 2a on the side facing the outer wall side ceiling beam 2b
A roof panel 6 is provided between a truss 5 serving as a support and a girder truss 5 installed on a ceiling beam 2a of an adjacent building unit, with its eaves-side end extending outward from the outer wall-side ceiling beam 2a. It is configured by being crossed over.

The roof panel 6 is made of a steel frame 9 formed in the same square shape as the roof panel 6.
In addition, a plurality of purlin materials 20 are arranged in parallel with the eaves, and a field board 11 is stretched on these purlin materials 20. Therefore, the roof panel 6 can be manufactured easily at a factory, transported to a construction site, and installed side by side on the upper part of the unit building 3 to easily form the roof.

[0004]

However, in the above-mentioned roof panel, the steel frame 9 is attached to the roof panel 6.
Because it is formed in the same size as, it is not only expensive to manufacture, but also very heavy,
There is a problem that the handling (management) is poor and involves danger. Therefore, in the roof structure constituted by the roof panel, there is a problem that workability is poor and that a large load is applied to a lower building structure.

The present invention has been made to solve the above problems, and has as its object to provide a roof panel and a roof structure capable of achieving weight reduction, reduction in manufacturing cost, and improvement in handling and workability. It is.

[0006]

In order to achieve the above object, a roof panel according to the present invention is provided on a ceiling beam on an outer wall of a building and a ceiling beam on a side opposite to the ceiling beam on the outer wall. In the roof panel spanned between the support,
A frame spanned between the outer wall-side ceiling beam and the support in the range therebetween, and a rafter that is disposed on the frame and at least the eaves side end extends outward from the frame. And a base plate stretched over these rafters.

Further, the roof structure according to the invention of claim 2 is:
An outer wall-side ceiling beam of a unit building configured by juxtaposing a box-shaped building unit with the roof panel frame according to claim 1,
It is characterized by being bridged between the ceiling beam on the side facing the outer wall side ceiling beam and the support installed on the ceiling beam of the building unit adjacent to this.

[0008]

According to the first aspect of the present invention, the range of the frame of the roof panel is between the ceiling beam on the outer wall side of the building and the support member installed on the ceiling beam on the side facing the outer wall side ceiling beam. Since it is formed in such a size that it can be bridged inside, the weight can be reduced and the manufacturing cost can be reduced as compared with the conventional roof panel, and the handleability is good and the safety is improved.

According to the second aspect of the present invention, the frame of the roof panel is provided with an outer wall-side ceiling beam of a unit building constructed by juxtaposing box-shaped building units, and is opposed to the outer wall-side ceiling beam. The bridge structure spans between the ceiling beam on the side of the building and the support installed on the ceiling beam of the building unit adjacent to the ceiling beam, thus improving the workability and joining the lower building structure. The structure can be simplified by reducing the load burden.

[0010]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1 showing the first embodiment, reference numeral 1 denotes a frame having a ceiling beam 2 between the upper ends of four columns (not shown) and a floor beam (not shown) between the lower ends of the columns. A unit building 3 is formed by arranging the building units 1 adjacent to each other in a rectangular parallelepiped building unit. The roof structure 4 according to the present embodiment installed on the upper part of the unit building 3 covers two adjacent building units 1 orthogonal to the longitudinal direction of the unit building 3 as shown in FIGS. A girder truss 5 which is designed to have a roof width and is installed on an adjacent ceiling beam 2a between adjacent building units 1 and supports a ridge of a roof.
And a roof panel 6 which is divided into a plurality of pieces at appropriate width intervals in the longitudinal direction of the unit building 3 and is bridged between the girder truss 5 and the outer wall side ceiling beam 2b of the unit building 3. That is, the girder truss 5 is installed so as to straddle the ceiling beam 2a on the side facing the outer wall side ceiling beam 2b of the unit building 3 and the ceiling beam 2a of the building unit 1 adjacent thereto.

As shown in FIG. 4, the girder truss 5 is formed in a gate shape by a steel material, and the lower portion of both legs is mounted so as to straddle on the adjacent ceiling beam 2a and is bolted to the lower portion. A joining plate 7 is provided, and an inclined upper joining plate 8 for bolting a frame 9 described later of the roof panel 6 is appropriately provided at an upper portion. The girder truss 5 is formed to have substantially the same length as the width of the roof panel 6, and is arranged in series on the adjacent ceiling beam 2a in accordance with the number of roof panels 6 installed. In addition, a joint plate similar to the upper joint plate 8 is attached to the outer wall side ceiling beam 2b to bolt the frame 9 of the roof panel 6 (not shown).

As shown in FIGS. 1 and 2, the roof panel 6 is framed between the outer beam ceiling beam 2b of the unit building 3 and the girder truss 5 in a range between the beam 9 and the frame 9. It is mainly composed of a plurality of rafters 10 arranged on the body 9 and having at least an eaves end 10a extending outward from the frame 9 and a field board 11 stretched over the rafters 10. I have. The frame 9 is formed in a square shape by, for example, a steel material having a U-shaped cross section, and a wooden rafter 10 is fixed on the frame 9 by screws or the like. The rafter 10 of the roof panel 6 in this embodiment is designed such that the ridge end 10b opposite to the eaves end 10a is located at substantially the same position as the upper edge of the frame 9. And these rafters 10
On the top, a field board 11 made of plywood or the like is attached by nailing or the like.

The roof panel 6 constructed as described above is mounted on the frame beam 9 between the girder truss 5 and the outer wall side ceiling beam 2b previously installed on the adjacent ceiling beam 2a of the unit building 3 by bolts. The girder truss 5 is attached to the frame 9 in advance, or the girder truss 5 and the frame 9 are bolted to the ceiling beams 2a and 2b. Then, a roof material such as a tile is attached to the roof panel 6 thus installed via a waterproof sheet to complete the roof. In addition, the divided roofing material is previously mounted on the roof panel 6 via the divided waterproof sheet, and after the roof panel 6 is installed, the adjacent waterproof sheet and the adjacent roofing material are joined. You may make it.

According to the roof panel 6 constructed as described above, the frame 9 is formed between the ceiling beam 2 of the unit building 3 and the girder truss 5 in such a size as to be bridged within the range therebetween. Therefore, the weight and the manufacturing cost can be reduced as compared with the conventional roof panel, and the handling property is good and the safety is improved.

Further, according to the roof structure 4 using the roof panel 6, the frame 9 of the roof panel 6 is used for the unit building 3 having the box-shaped building unit 1 having the ceiling beams 2 juxtaposed. Since it is constructed by bridging between the outer wall-side ceiling beam 2b and the girder truss 5 installed on the ceiling beam 2a between the adjacent building units 1, the workability is improved and the lower building structure The structure can be simplified by reducing the applied load.

FIG. 5 shows a modification of the girder truss. The girder truss 5 is constructed by hanging a pair of front and rear plaster boards 13 between a pair of left and right wooden pillars 12.
A lower joining plate 7 is attached to the lower end of 2, and an upper joining plate 8 having a V-shaped cross section is attached to the upper end by screwing or the like.

FIG. 6 shows a roof structure according to a second embodiment of the present invention. The roof structure 4 of this embodiment is designed to have a roof width that covers three adjacent building units 1 orthogonal to the longitudinal direction of the unit building 3 and the adjacent ceiling beams 2.
Since a is two sets, the girder truss 5 is provided in two rows corresponding to this. The rafter 10 of the roof panel 6 used in the roof structure 4 has a ridge side end as shown in FIG. 7 in order to position the ridge of the roof at the center between the two rows of girder trusses 5. 10b is extended outward from the upper edge of the frame 9, and a ridge plate 14 is stretched between these extended ends.

FIG. 8 shows a roof structure according to a third embodiment of the present invention. The roof structure 4 of the present embodiment is designed to have a roof width that covers four adjacent building units 1 orthogonal to the longitudinal direction of the unit building 3 and the adjacent ceiling beams 2.
Since a is three sets, the girder truss 5
(5a to 5c) are provided in three rows. These girder trusses 5
Since the center girder truss 5a is located at the ridge of the roof, it is formed higher than the girder trusses 5b and 5c on both sides.

The rafters 10 of the roof panel 6 used in the roof structure 4 are shown in FIG. 9 to cover the spaces between the girder trusses 5b and 5c on both sides and the center girder truss 5a. As shown, the ridge-side end 10b extends further outward from the upper edge of the frame 9, and a ridge plate 14 is stretched between these extended ends. A ridge beam 15 to be joined on the girder truss 5a is hung.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design variations and the like that do not depart from the gist of the present invention. Is also included in the present invention. For example, in the above embodiment, the roof panel 6 is described for the unit building 3, but the roof panel of the present invention can be applied to a general building. In the above embodiment, the roof panel 6
Although the case where the frame 9 is made of steel is described,
The frame of the roof panel may be made of metal other than steel, for example, such as aluminum, wooden, or resin. Furthermore,
In the above embodiment, the girder truss 5 is employed as the support. However, the support is not limited to the girder truss 5 as long as the support can support the ridge-side end of the frame 9 of the roof panel 6. Further, the present invention can be easily applied to other roofs such as a ridge roof in addition to the gable roof.

[0022]

In summary, according to the present invention, the following excellent effects can be obtained.

(1) According to the first aspect of the present invention, the frame of the roof panel is provided between the ceiling beam on the outer wall side of the building and the support member installed on the ceiling beam on the side facing the outer wall side ceiling beam. Since it is formed in such a size that it is bridged within the range, the weight and the manufacturing cost can be reduced as compared with the conventional roof panel, and the handling property is good and the safety is improved.

(2) According to the second aspect of the present invention, the frame of the roof panel is attached to an outer wall side ceiling beam of a unit building constructed by juxtaposing box-shaped building units, and the outer wall side ceiling beam. Since the roof structure is bridged between the ceiling beam on the opposite side and the support installed on the ceiling beam of the building unit adjacent to it, the workability is improved and the lower building structure is The structure can be simplified by reducing the applied load.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a front view of the roof structure shown in FIG.

FIG. 3 is a perspective view of the roof panel shown in FIG. 1;

FIG. 4 is a perspective view of the girder truss shown in FIG.

FIG. 5 is a perspective view showing a modification of the girder truss.

FIG. 6 is a front view of a roof structure according to a second embodiment of the present invention.

FIG. 7 is a perspective view of the roof panel shown in FIG.

FIG. 8 is a front view of a roof structure according to a third embodiment of the present invention.

FIG. 9 is a perspective view of the roof panel shown in FIG. 6;

FIG. 10 is a perspective view showing a conventional roof structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building unit 2 Ceiling beam 2b Exterior wall side ceiling beam 3 Unit building 5 Girder truss (support) 6 Roof panel 9 Frame body 10 Rafter 10a Eaves front end 11 Field board

Claims (2)

(57) [Claims] 1. A roof panel spanned between an outer wall-side ceiling beam of a building and a support provided on the ceiling beam on a side opposite to the outer wall-side ceiling beam, wherein the outer wall-side ceiling beam, the support, A frame that is bridged in the range between the frames, a rafter that is disposed on the frame and at least the eaves end is extended outward from the frame, and is stretched over these rafters A roof panel comprising a field plate. 2. A ceiling beam on an outer wall side of a unit building constructed by juxtaposing a frame body of a roof panel according to claim 1 and a box-shaped building unit, and a ceiling beam on a side facing the outer wall side ceiling beam. And a support structure provided between a support installed on a ceiling beam of a building unit adjacent thereto and a roof structure.