JPH073954A - Arched folded plate roof - Google Patents

Abstract

PURPOSE:To provide an arched folded plate roof with the small radius of curvature for a small building while having appropriate strength even without a rafter by bending a polycarbonate resin plate of specific cross-sectional form into arch shape. CONSTITUTION:A polycarbonate resin plate is bent to prepare a folded plate 1 with crests 3 with flat top parts 2 and valleys 5 with flat bottom parts 4 formed in the alternately continuous state. This folded plate 1 is provided with 4-6 groups of crests 3 and valleys 5 per 1m in width. The thickness of the folded plate 1 is to be 1-5mm, the crest height (h) from the bottom part 4 to the top part 2 is to be 40-60mm, and the rising angle of inclined parts is to be 35-55 deg.. The whole folded plate 1 is bent in arch shape with the radius of curvature 15-30m in the ridge line direction of the crest 3. Strength as roofing material can be thereby maintained even without using a rafter, and an arched roof with the small radius of curvature can be constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arched folded roof made of polycarbonate resin which is constructed as an arched roof for various buildings.

[0002]

2. Description of the Related Art Polycarbonate resin (hereinafter abbreviated as "PC resin") has excellent weather resistance, impact resistance, and transparency, so that it can be used as a daylighting roof material for pools, warehouses,
It is widely used from large buildings such as gymnasiums to simple buildings such as bus stops and bicycle storage areas. As the shape of the roof, in addition to a flat shape such as a one-way or two-way flow, an arch-shaped roof as shown in FIG. 4 is increasing due to design requirements.

Conventionally, such an arched roof is shown in FIG.
Rafters (15) on top of the purlin (14) as shown in
The roof was made into an arch shape by finely assembling it, and the roof was made into an arch shape. A frame made of aluminum or the like was assembled on each grid, and a flat plate was fitted into this frame for construction. However, if an arch-shaped roof is formed using a flat plate, it is necessary to insert the purlin (14) and rafters (15) in detail, and since the upper frame must be assembled, these create shadows and the lighting rate decreases. To do. Further, since the weight of the entire roof becomes large, there is a drawback in that the basic steel frame (16) needs to be solid enough to withstand the weight of the roof.

Therefore, a PC as shown in FIG.
The folding plate (1) made by bending a resin flat plate is subjected to R bending in the direction of the ridgeline (7) of the mountain (3), and the arched plate roof (20) as shown in FIG. ) Came to be adopted. If it is such an edition (1),
4) There is no need to assemble rafters on top of it, and as shown in FIG. 7, a tight frame (21) matching the uneven shape of the origami (1) is attached to the purlin (14), Mountain of (1) (3) and mountain of Thailand and frame (21) (2
It is only necessary to overlap with 2) and fasten them with the bolts (23), and it is possible to reduce the weight of the basic steel frame (16) without lowering the lighting rate.

[0005]

However, although a conventional folding plate can make a large roof having a high rigidity and a radius of curvature of more than 30 m, it is extremely difficult to make a small arched folding plate roof having a size smaller than that. Therefore, it has not been possible to sufficiently meet the demands for small buildings and various designs.

[0006] The present invention is intended to provide an arc-shaped folded roof made of PC resin having a relatively small radius of curvature for the purpose of solving the above-mentioned problems.

[0007]

Means for Solving the Problems The present inventor has made it possible to maintain the strength as a roofing material without using rafters by making the cross-sectional shape of the PC resin folding plate to be a particular one, and it is excellent. We have found that it is possible to construct an arched folding roof with a small radius of curvature while taking advantage of the advantages of a folding roof that can obtain high lighting efficiency.

In order to achieve the above-mentioned object, the arched folded roof of the present invention is obtained by bending a PC resin plate to form a ridge (3) having a flat top (2) and a valley having a flat bottom (4). An arched fold plate roof constructed by bending a fold plate (1) formed by alternately and (5) in an arch shape with a radius of curvature of 15 to 30 m in the ridgeline (7) direction of the mountain (3). In addition, while the folding plate (1) is formed of a PC resin plate having a thickness of 1 to 5 mm, the folding plate (1) has a width of 4 to 4 per 1 m in width.
Having 6 sets of peaks (3) and valleys (5), said bottom (4)
The peak height (h) from the top to the top (2) is 40 to 60 mm, and the slope (6) between the bottom (4) and the top (2) is 35 to 55 ° from the bottom (4). It is characterized in that it is formed at a rising angle (θ).

PC used for the arched folded roof of the present invention
When the plate thickness of the resin (1) is less than 1 mm, the strength as a roof material is insufficient, and when it exceeds 5 mm, the rigidity of the plate (1) becomes too high and the radius of curvature is bent to 30 m or less. Therefore, it is necessary to use the one having a diameter of 1 to 5 mm. In terms of the balance between strength and rigidity, it is particularly preferable that the plate thickness is about 1.3 to 3.0 mm.

The shape of the folded plate (1) is as shown in FIGS.
As shown in Fig. 1, a crest (3) having a flat top (2) and a valley (5) having a flat bottom (4) are formed alternately and continuously, and a set of It is necessary that the mountains (3) and the valleys (5) are formed at a rate of 4 to 6 groups per 1 m in width (hereinafter, the number of groups of the mountains (3) and the valleys (5) is abbreviated as “the number of mountains”. ). This is because the rigidity becomes too small when the number of peaks per 1 m width is less than 4, and the purlin (14) interval must be shortened in order to obtain sufficient strength as a roofing material, which lowers the daylighting rate and increases the foundation. This is because the weight of the steel frame (16) cannot be reduced. On the other hand, if it exceeds 6 peaks, it takes too much time to process, and if you look up from the bottom, many lines are visible and the appearance is not good, and the part of the line casts a shadow and the lighting rate also decreases.

The height (h) from the bottom (4) of the valley (5) to the top (2) of the mountain (3) of the plate (1).
However, if it is less than 40 mm, the mountains (3) and the valleys (5) cannot be clearly recognized at a distance, and it looks like a general corrugated sheet and becomes cheesy,
On the other hand, when it exceeds 60 mm, the rigidity of the plate (1) becomes too high, and it becomes difficult to bend it to a radius of curvature of 30 m or less. Therefore, the peak height (h) needs to be 40 to 60 mm, and particularly preferably about 45 to 55 mm.

The rising angle (θ) of the inclined portion (5) between the bottom (4) of the crest (3) and the top (2) of the valley (5) of the plate (1) is less than 35 °. Then, 4 per 1m width
When ~ 6 peaks are formed, the width of the top portion (2) and the bottom portion (4) becomes too narrow, and the bolt (23) tightens the tight frame (2).
It becomes difficult to fix it in 1) for construction. On the other hand, when the rising angle (θ) exceeds 55 °, the rigidity of the plate (1) becomes too high and it becomes difficult to bend it to a radius of curvature of 30 m or less. Therefore, it is necessary to set the rising angle (θ) of the inclined portion (6) to 35 to 55 °, particularly 40 to 4
A range of 5 ° is preferred.

In the construction method of the arched folded roof of the present invention, as in the conventional method, the tight frame (21) is directly attached to the purlin (14) without assembling the rafter, and the bolt (23) is attached. All you have to do is to fasten the first edition (1) with).

[0014]

In the arched fold plate roof of the present invention, the fold plate (1) is formed of a polycarbonate resin plate having a thickness of 1 to 5 mm, and the fold plate (1) has a width of 4 to 6 per 1 m width. A set of peaks (3) and valleys (5), the peak height (h) from the bottom (4) to the top (2) is 40-60 mm,
And a slope (6) between the bottom (4) and the top (2)
Since the rising angle (θ) of 3 is a specific shape of 35 to 55 °, it is possible to perform R-bending with a radius of curvature of 15 to 30 m without difficulty, and to construct an arched fold plate roof with a smaller radius of curvature than before. You can

[0015]

Next, a specific embodiment of the arched folded roof of the present invention will be described with reference to the drawings.

First, using a PC resin plate having a thickness of 2 mm, an effective width of 600 mm and a length of 6000 as shown in FIG.
A folded plate (1) was prepared in which overlapping portions (11) and (12) were extended at both ends in the width direction in mm. This oriental plate (1) corresponds to 5 peaks per 1 m width, the peak height (h) is 50 mm, the rising angle (θ) of the inclined portion (6) is 42 °, and the top of the peak (3) ( The width of 2) is 43.1 mm, the width of the bottom part (4) of the valley (5) is 45 mm, and the length of the inclined part (6) is 73.9 mm.

Next, as shown in FIG. 3, an arched plate roof having a radius of curvature of 20 m was constructed by the plate (1). First of all, the construction is performed on the 11 purlins (14) assembled at intervals of 1000 mm on the tight frame (13a) with a height of 921.2 mm, in the order of left and right eaves in order.
5.4mm, 818.2mm, 689.6mm, 510mm, 2
Tight frame with different height of 80mm (13b) (13
c) (13d) (13e) (13f) was attached. Next, two folding plates (1) are piled up at the edges in the direction of the ridge (7), and three folding plates (1) are transversely piled up so that the overlapping portions (11) and (12) are piled up and connected. The tight plate (13a) (13b) (13c) (13d) (13e) of the origami plate (1) with the bolt (12) as shown in FIG.
It fastened to (13f). In addition, each tight frame (1
3a) (13b) (13c) (13d) (13e) (1
3f) is a tight frame (21) shown in FIG.
In the similar manner, a tight frame body that matches the cross-sectional shape of the origami plate (1) is provided with spacers of a predetermined height to obtain the respective heights.

The arch-shaped fold plate roof constructed as described above did not cause distortion in the fold plate after construction, and there was no problem of deformation or damage even under a load of 300 kg / f. .

[0019]

INDUSTRIAL APPLICABILITY As described above, in the arched folded roof of the present invention, the PC resin plate is bent to form the peaks having flat tops and the valleys having flat bottoms alternately and continuously. In an arched plate roof constructed by bending the plate in an arch shape with a radius of curvature of 15 to 30 m in the ridgeline direction of the mountain, the plate is formed of a PC resin plate having a thickness of 1 to 5 mm, and The plate has 4 to 6 sets of peaks and valleys per 1 m width, and the peak height from the bottom to the top is 40 to 60 mm.
In addition, since the inclined portion between the bottom portion and the top portion is formed with a rising angle of 35 to 55 ° from the bottom portion, the radius of curvature is 15 to 30 m, which is smaller than the conventional arch shape. It becomes possible to construct a folded roof. In addition, since it has appropriate rigidity and can be installed at the same spacing as the conventional purlin, it is possible to make an arched fold plate roof with good lighting efficiency by utilizing the transparency of PC resin, and reduce the weight of the basic steel frame. You can also plan.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a plate used for the arched plate roof of the present invention.

FIG. 2 is a cross-sectional view of a plate used for the arched plate roof of the embodiment of the present invention.

FIG. 3 is a cross-sectional view of an arched folded roof according to an embodiment of the present invention.

FIG. 4 is a perspective view of an arch-shaped roof using a flat plate.

FIG. 5 is a perspective view of an arch-shaped roof using a folded plate.

FIG. 6 is a perspective view of a general folded plate.

FIG. 7 is a partially cutaway perspective view showing a method for constructing an arched folded roof.

[Explanation of symbols]

 1 ... Folded plate 2 ... Top 3 ... Mountain 4 ... Bottom 5 ... Valley 6 ... Slope 7 ... Ridge h ... Mountain height θ ... Rise angle

Claims (1)

[Claims] 1. A plate (3) having a flat top portion (2) and a valley (5) having a flat bottom portion (4) alternately formed by bending a polycarbonate resin plate. 1)
Radius of curvature 15 to 30 m in the direction of the ridgeline (7) of the mountain (3)
In an arch-shaped fold plate roof constructed by bending in an arch form, the fold plate (1) is formed of a polycarbonate resin plate having a thickness of 1 to 5 mm, and the fold plate (1) has a width of 1 mm.
with 4-6 sets of peaks (3) and valleys (5) per m,
The mountain height (h) from the bottom (4) to the top (2) is 4
0 to 60 mm, and the inclined part (6) between the bottom part (4) and the top part (2) is formed at a rising angle (θ) of 35 to 55 ° from the bottom part (4). An arched folded roof.