JPH082329Y2 - Roof structure - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a roof structure suitable for a roof such as a gymnasium, an indoor ground, and the like. The present invention relates to a roof structure coated with a film material made of a flexible material.

“Prior art and its problems” In general, a roof is located above a building to prevent rain, snow, etc. from entering the building, and has a function of blocking direct sunlight. As the span of a building becomes larger, such a roof is often applied with a shell structure or an air film structure in addition to a structure in which a roof material (roofing material) is supported by beams. Is coming.

The shell structure is a curved roof to which the membrane theory is applied, and includes, for example, a dome in which an arch is three-dimensionally constructed, an HP shell, and the like. This shell structure is mainly used for reinforced concrete construction, but there are also steel and wooden constructions in which fine members are assembled like a mesh to form a shell.

3 and 4 show an example of such a shell structure. In the drawings, reference numeral 1 is a main beam material, reference numeral 2 is a diagonal beam material, reference numeral 3 is a horizontal connecting material, and reference numeral 4 is Shows the wire. When the film material is stretched on the upper chord surface of the truss, a V-shaped cross section is formed because tension is applied to the film material by the pressing cable. For this reason, it is not possible to insert a horizontal connecting material or a brace for connecting the trusses to each other on the upper chord surface of the truss, and the upper chord material of the main beam member 1, which is arranged above, has a laterally unstable structure. Further, when the brace is placed on the lower chord surface, there is a problem that the design becomes noisy and the advantages of the film material as a finishing material cannot be utilized.

The present invention has been made in view of the above circumstances,
The purpose of the present invention is to provide a roof structure that is superior in design and can obtain rigidity in the orthogonal direction while maintaining strength and rigidity in the span direction of the truss.

[Means for Solving the Problems] In the roof structure of the present invention, the main beam members are arranged in a substantially lattice-like appearance, and a plurality of sub-beam members are provided at a predetermined interval from the main beam member. Main beam members which are arranged substantially parallel to each other along one extending direction of the main beam member and are located between two main beam members, and which are adjacent to each other between the main beam member and the sub-beam member. By constructing the diagonal beam members connecting the sub beam members so as to have one or more intersections with each other, a steel-framed mountain frame structure having the sub beam members as ridge lines is formed, and on the upper surface of the mountain frame frame structure. Is characterized in that it is provided so as to cover a film material made of a sheet-shaped flexible material.

"Operation" The rigidity of the truss in the span direction and the orthogonal direction is exerted by the combination of the lattice-shaped main beam member, sub-beam member and oblique beam member.

[Embodiment] An embodiment of the roof structure of the present invention will be described below with reference to the drawings.

The roof structure of the present embodiment, as shown in FIG.
A main part is composed of 10, a sub-beam member 12, and a diagonal beam member 14 connecting the main beam member 10 and the sub-beam member 12. Then, the main beam members 10 are arranged in parallel to each other at a predetermined interval, and the sub-beam members 12 are three-dimensionally arranged between the main beam members 10 along the extending direction of the main beam members 10. A diagonal beam member 14 is connected between the main beam member 10 and the sub-beam member 12 so as to integrally connect the main beam member 10 and the sub-beam member 12 adjacent to each other.

The slanted beam member 14 and the main beam member 10 and the sub-beam member 12 are 1
The above-mentioned intersections are formed and are laid in a grid pattern, whereby each main beam member 10 constitutes a lattice-shaped lower chord surface, and each sub-beam member 12 has a triangular cross-section chevron that is a ridge line. Frame
16 are configured.

The top surface of the mountain frame 16 is covered with a film material (not shown) made of a sheet-shaped flexible material so as to cover the mountain frame 16.

The roof structure of the present embodiment has a main beam member 10 and a sub-beam member 12
The truss composed of is provided with a membrane material (not shown) for use. Then, the mountain frame 16 is set so as to extend along the vertical direction of the roof as shown in FIG. In this case, for example, when there is a lot of snow in a snowy area, etc., this snow is guided downward along the mountain structure 16 of the roof structure, so that no snow remains on the roof, and therefore the snow load applied to the roof. Can be reduced.

According to the roof structure of the present embodiment, the external force in the span direction applied to the sub-beam member 12 can be received by the main beam member 10 via the oblique beam member 14, so that the strength and rigidity of the truss in the span direction are maintained. It is possible to obtain the effect that the rigidity in the orthogonal direction can be obtained.

In addition, since the main beam member 10 and the sub-beam member 12 are three-dimensionally assembled, it is possible to achieve a design effect such as a roof structure having an excellent design.

[Advantage of the Invention] In the roof structure of the present invention, the main beam members are arranged in a substantially lattice-like appearance, and a plurality of sub-beam members are provided at predetermined intervals between the main beam members and the main beam members. A main beam and a sub-beam adjacent to each other between the main beam and the sub-beam, which are arranged substantially parallel to each other in one extending direction of By constructing the diagonal beam members connecting the two beams so as to have one or more intersections with each other, a mountain frame structure of steel frame having the ridge line of the sub-beam member is formed, and a sheet-like mountain structure is formed on the upper surface of the mountain frame frame. Since the membrane material made of a flexible material is provided so as to cover, the external force in the span direction applied to the sub-beam material can be received by the main beam material through the oblique beam material, and the truss span direction The effect of being able to obtain the rigidity in the orthogonal direction while maintaining the strength and rigidity of it can.

In addition, because the main beam material and the sub-beam material are three-dimensionally assembled,
A design effect such as a roof structure having an excellent design can also be achieved.

[Brief description of drawings]

1 and 2 are partial perspective views showing an embodiment of the present invention, and FIGS. 3 and 4 are views showing an example of a conventional roof structure. 10 …… Main beam material, 12 …… Secondary beam material, 14 …… Slanted beam material, 16 …… Yamagata frame structure.

Claims (1)

[Scope of utility model registration request] 1. A main beam member is arranged in a substantially lattice-like appearance, and a plurality of sub-beam members are arranged at predetermined intervals with respect to the main beam member in one extending direction of the main beam member. Along the main beam and the sub-beam, diagonal beams that connect the main beam and the sub-beams adjacent to each other are arranged substantially parallel to each other and between the two main beam members. By being installed so as to have one or more intersecting portions, a mountain frame structure of steel frame having the ridge line of the sub-beam member is constructed, and a film made of a sheet-like flexible material is formed on the upper surface of the mountain frame structure. A roof structure characterized by being provided so as to cover the material.