JP2811244B2 - Configuration of membrane roof dome with rectangular plane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane roof dome having a rectangular plane.

[0002]

2. Description of the Related Art Membrane roof domes having a rectangular plane are used for holding sports, events and the like. As shown in FIG. 3, the structure of the membrane roof dome is composed of one member a arranged in parallel with each other and the other member b arranged in a direction orthogonal to the respective members a. It is configured. In the structure of the membrane roof dome, one of the members a
There is almost no difference in the vertical position of the adjacent intersection between the member a and the other member b. Therefore, if the film c is stretched between these members a and b, a sag of the film c cannot be secured. .

For this reason, as shown in FIG. 4, a bundle e is supported by a wire d at the center between one member a and the other member b to produce a sag of the film material c. ing.
In the example of FIGS. 5 and 6, the bundle f is erected on one of the members a and the other members b to support the purlin g. The film material c is stretched.

[0004]

The structure of a conventional membrane roof dome is, as described above, one member a and the other member b.
Since there is almost no difference in the vertical position of the adjacent intersection with
(1) At the center between one member a and the other member b, a bundled material e is supported by a wire d to stand up to create a sag of the film material, or (2) one member a and It is necessary to raise the bundle material f on one of the other members b to support the purlin material g, and to stretch the film material c between the purlin materials g.

[0005] Therefore, when the roof surface is viewed from the inside of the dome, the wire d and the bundle material e, or the bundle material f and the purlin material g enter the eyes, giving a complicated feeling. Further, it impairs the translucency of the film material, which is a characteristic of the film structure. In addition, because of the configuration described above, there is a problem that the out-of-plane rigidity of the single-layer dome configuration is small.

The present invention has been made in view of the above problems, and has as its object to simplify the structural structure of a membrane roof dome and to obstruct the light transmittance, which is a characteristic of the membrane roof dome. Another object of the present invention is to provide a membrane roof dome having a rectangular flat surface capable of improving the out-of-plane rigidity of the entire structure.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to one member arranged in parallel with each other and the other member arranged in a direction perpendicular to the respective members. In the configuration of the membrane roof dome having a rectangular flat surface composed of members, adjacent intersections of the one member and the other member are vertically displaced from each other, so that the two intersections are perpendicular to each other.
The alternate member intersections are defined as upper member intersections, the remaining member intersections are defined as lower member intersections, and a film material is directly stretched between these upper member intersections and the lower member intersections. Orthogonal to a plurality of quadrangular pyramids with the member intersection point of
It is characterized by being formed in the direction.

[0008]

The structure of the membrane roof dome having a rectangular plane according to the present invention is such that adjacent intersections of one member and the other member are displaced in the vertical direction as described above, so that the two orthogonal directions are one in both directions. Each other member intersection is defined as the upper member intersection, the remaining member intersections are defined as the lower member intersection, and a film material is directly stretched between these upper member intersections and the lower member intersection to form the upper member intersection. A plurality of quadrangular pyramids having vertices at the member intersections are formed in two orthogonal directions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the configuration of a membrane roof dome having a rectangular plane according to the present invention will be described with reference to the embodiments shown in FIGS. 1
Are arranged in parallel with each other, and each member 2 is
In each of the other members arranged in a direction orthogonal to the other, the adjacent intersections of the one member 1 and the other members 2 are displaced in the vertical direction, and every other two orthogonal directions are alternately arranged. The member intersection point p is defined as the upper member intersection point, the remaining member intersection point q is defined as the lower member intersection point, and the film material 3 is directly stretched between the upper member intersection point p and the lower member intersection point q to form the upper member intersection point. A plurality of quadrangular pyramids (quadrangular pyramids having a height difference H) having the member intersection point p as a vertex are formed in two orthogonal directions.

As described above, the structure of the membrane roof dome having a rectangular plane according to the present invention is such that the adjacent intersections of one member 1 and the other member 2 are displaced in the vertical direction, and two orthogonal directions are formed. The other member intersection point p is set as the upper member intersection point, the remaining member intersection point q is set as the lower member intersection point, and the film material 3 is directly stretched between the upper member intersection point p and the lower member intersection point q. Then, since a plurality of quadrangular pyramid portions (quadrangular pyramid portions having a height difference H) having the upper member intersection point p as a vertex are formed in two orthogonal directions, the wire d, the bundle material e, or the bundle material f Even if the purlin material g is not used, the zag of the film material 3 is secured,
The structure of the membrane roof dome is simplified.

Further, since the wire d and the bundle material e, or the bundle material f and the purlin material g are not required, the light transmittance as a characteristic of the membrane roof dome is not hindered. Further, a film material 3 is provided on each of the members 1 and 2.
Is formed, a quadrangular pyramid-shaped portion having the vertex of the intersection point p located at the upper part and the lower intersection point q existing therearound is formed, so that the film material 3 has a sufficient sag. Thus, the bundle material and the purlin material for attaching the film material 3 become unnecessary.
Further, as described above, since a plurality of quadrangular pyramids having the apex of the upper member intersection point p are formed in two orthogonal directions, the out-of-plane rigidity of the entire structure is improved.

[0012]

As described above, the structure of the membrane roof dome having a rectangular plane according to the present invention is such that adjacent intersections of one member and the other member are displaced in the vertical direction, and two directions orthogonal to each other are formed. Every other member intersection is defined as the upper member intersection, the remaining member intersection is defined as the lower member intersection, and a film material is directly stretched between these upper member intersection and the lower member intersection to form the upper member intersection. Since a plurality of quadrangular pyramids having the member intersections as vertices are formed in two directions orthogonal to each other, it is possible to secure the zag of the film material without using a wire, a bundle material, or a bundle material or a purlin material, The structure of the membrane roof dome can be simplified.

Further, since wires and bundles, or bundles and purlins can be dispensed with, the translucency characteristic of the membrane roof dome is not impaired. Further, as described above, since the plurality of quadrangular pyramids having the vertices at the intersection of the upper members are formed in two orthogonal directions, the out-of-plane rigidity of the entire structure can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a configuration of a membrane roof dome having a rectangular plane according to the present invention.

FIG. 2 is an enlarged perspective view showing a part of FIG. 1;

FIG. 3 is a perspective view showing an example of a configuration of a conventional membrane roof dome.

FIG. 4 is an enlarged perspective view showing a part of FIG. 3;

FIG. 5 is a perspective view showing another example of a conventional membrane roof dome.

FIG. 6 is a vertical sectional side view taken along the line II in FIG. 5;

[Description of Signs] 1 One member 2 The other member 3 Membrane material p Upper member intersection q Lower member intersection

Claims (1)

(57) [Claims] 1. One member arranged in parallel with each other,
In the configuration of the membrane roof dome having a rectangular plane composed of the other members arranged in a direction orthogonal to the respective members, the adjacent intersections of the one member and the other members are set to In the vertical direction, every other member intersection in two orthogonal directions is defined as an upper member intersection, and the remaining member intersections are defined as a lower member intersection, and the intersection between the upper member intersection and the lower member intersection is determined. A structure of a membrane roof dome having a rectangular plane, wherein a plurality of quadrangular pyramids having apex at the intersection of the upper members are formed in two orthogonal directions by directly stretching a membrane material therebetween.