JP2001317231A - Tear propagation prevention structure of membrane body in membrane structural building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tear propagation prevention structure of a membrane body so as to prevent the propagation of tears from widely spreading the tears even if the tears occur in the membrane body constituting a membrane structural building. SOLUTION: The tear propagation prevention structure is so constituted that tapes 3 with high strength are stuck on the membrane body 1 constituting a membrane structural building. It is so constituted that the tape 3 with high tension is held between membrane materials 1a and 1a of a weld metal zone welding the membrane materials 1a and 1a to each other for constituting the membrane body 1 and that the membrane body 1 and tape 3 are integrally formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has been developed as a structure for preventing the propagation of tears of a membrane of a membrane structure building using a membrane material for a roof, such as a dome stadium, a gymnasium, an indoor pool, etc. The structure is not limited to a film body, but can be applied to a film body stretched on an outer wall surface of a building.

[0002]

2. Description of the Related Art In recent years, many membrane-structured buildings using a membrane material for a roof, such as a dome stadium, a gymnasium and an indoor pool, have been constructed.

[0003] The membrane material used for this roof has tough durability. However, when a part is torn by a flying object or the like, the torn part is torn from the torn part to cause a tear. However, there was a problem that the size gradually increased.

[0004] As a material for preventing the propagation of tears, there is a cloth called ripstop nylon. This is a material in which a thick thread is woven in a lattice in the fabric to stop the tear propagation at the thick thread even if a tear occurs, but this fabric reduces the weight of climbing tents and rain kappa. The fabric was thinner than usual and used for the intended purpose, and was not durable enough to be used for a membrane structure building.

[0005]

Therefore, in the present invention,
It is an object of the present invention to provide a structure for preventing the propagation of a tear in a membrane, which prevents the tear from propagating even if the membrane constituting the membrane structure building is torn.

[0006]

According to the first aspect of the present invention, a high-strength tape 3 is attached to a membrane 1 constituting a membrane structure building.

In this way, even if the film body 1 is torn, if the tear comes to the tape 3, the tearing force is dispersed by the tape 3, and the tear propagation stops there.

According to the second aspect of the present invention, the film body 1 is formed by welding and connecting a plurality of film materials 1a, 1a, and the film material of a welding portion where the film materials 1a, 1a are welded to each other. 1a, 1a
The high-strength tape 3 was sandwiched between the films, and the film body 1 and the tape 3 were integrated.

In this way, the high-strength tape 3 cannot be seen from the outside.

According to the third aspect of the present invention, the tape 4 is attached to the film body 1.

In this way, even if the film body 1 is torn, if the tear comes to the tape 4, the tearing force is dispersed by the tape 4, so that the tear propagation stops there.

According to the fourth aspect of the present invention, the net 5 is attached to the membrane 1.

In this way, even if the film body 1 is torn, if the tear comes to the net 5, the tearing force is dispersed by the net 5, so that the tear propagation stops there.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are shown in FIGS.
A description will be given based on FIG.

FIG. 1 shows an example of a membrane structure building in which a membrane body 1 is used for a roof. Beams 2... 2 are radially installed substantially like umbrella bones. The film body 1 is stretched between the two. Furthermore, beam 2,
The film body 1 stretched between the two is formed in a substantially sector shape, and both side ends are fixed to the beam 2.

Since this membrane body 1 is a large one used for a large building such as a dome stadium, a long strip-like membrane material 1a is cut out, a plurality of pieces are welded and connected, and according to each mounting place. It is formed so that it may become a shape.

The film material 1a used for the film body 1 is usually
A glass fiber woven cloth coated on both sides with an ethylene tetrafluoride resin is used.

In such a membrane-structured building, a part of the membrane is torn by a flying object or the like.
Is likely to propagate in a direction substantially parallel to the beam 2.

The present invention relates to a structure for preventing the propagation of the tearing of the film body 1, and FIG. 2 shows a first embodiment thereof.

In this embodiment, a high-strength tape 3 is applied in the width direction of the film body 1 (in a direction substantially perpendicular to the beam 2) so that the film body 1 is not torn.

As the high-strength tape 3 to be used, a glass fiber, an aramid fiber, a carbon fiber, a fiber such as a polyparaphenylene benzobisoxazole fiber or the like woven in a flat rope shape, or a band made of a metal such as iron or stainless steel. Board can be used.

When the high-strength tape 3 is bonded to the film material 1a to form the film body 1, the high-strength tape 3 is inserted between the film materials 1a to be integrated by heat welding, or the heat of the film materials 1a, 1a is combined. Attach the high-strength tape 3 in the middle of the welded part, and further, cover cloth 1b
May be stuck thereon to cover and integrate the high-strength tape 3.

In this way, even if tear propagation occurs in the film body 1, since the high-strength tape 3 is adhered and reinforced, when the tear reaches the high-strength tape 3, the film will tear. Is dispersed by the high-strength tape 3 and stops at the high-strength tape 3.

FIG. 3 shows a second embodiment.
In this example, a tape 4 made of the same material as the film body 1 formed in a band shape is attached in the width direction so that a part of the film body 1 is doubled and reinforced so that no tear propagation occurs. It is preferable that the tape 4 to be stuck on the surface is cut in the bias direction, and the width thereof can be arbitrarily changed according to the installation location.

Further, in order to reinforce the film body 1, FIG.
As shown in FIG. 5, two tapes 4 to be adhered to the surface may be overlapped (third embodiment), or as shown in FIG. 5, one end may be bent to increase the thickness (fourth embodiment). good. Further, as shown in FIG. 6, both ends may be bent to increase the thickness (fifth embodiment).

In the above-described first to fifth embodiments, the example in which the reinforcing member is reinforced in the width direction is shown. However, the reinforcing member may be reinforced by attaching the film member 1 in a lattice shape.

FIG. 7 shows a sixth embodiment. In this embodiment, a mesh 5 is attached to the membrane 1 so that no tear propagation occurs in the membrane 1, and even if tear propagation occurs, the mesh 5 The force of tearing is dispersed by the ropes constituting 5,
The tearing of the film body 1 is stopped there.

As the material of the rope, any material such as polyester fiber, nylon fiber and glass fiber can be used.

The rope 5a used for the net 5 has a substantially circular cross-sectional shape and has a small adhesive surface with the membrane 1, so that it is difficult to fix the rope 5a. If the rope 5a is not fixed to the membrane 1, the rope 5a is pulled. It is difficult to support the tearing force with the rope 5a.
Rope 5a of the net 5 because it is difficult to stop the tear propagation
It is preferable that a covering cloth 1c made of the same material as that of the film body 1 is put on the intersection 5b, and the covering cloth 1c is thermally welded to the film body 1 along the rope 5a.

The fixing of the rope 5a of the net 5 and the membrane 1 is performed as shown in FIG.
As shown in the seventh embodiment, the covering cloth 1d is attached to the rope 5a.
And heat welding can also be performed.

The above is the embodiment, and the example in which the membrane 1 is used for the roof is shown. However, the structure of the present invention is not limited to the membrane used for the roof.

[0032]

According to the first aspect of the present invention, a high-strength tape 3 is adhered to the film body 1. Even if the film body 1 is torn, if the break comes to the tape 3, it is pulled. As the tearing force is distributed by the tape 3, the tear propagation stops there. Therefore, even if the film body 1 is torn, it is minimized.

According to the second aspect of the present invention, the film materials 1a, 1a
The high-strength tape 3 is sandwiched between the film materials 1a, 1a of the welding portion where the two are welded together, and the film body 1 and the tape 3 are integrated. Since it is hidden and cannot be seen from the outside, the appearance is good.

According to the third aspect of the present invention, the tape 4 of the same material as the film body 1 is attached to the film body 1.
If the tear comes to tape 4 even if it breaks,
Since the tearing force is dispersed by the tape 4,
The tear propagation stops there. Therefore, even if the film body 1 is torn, it is minimized.

According to the fourth aspect of the present invention, the net 5 is attached to the membrane 1, and even if the membrane 1 is torn, if the tear comes to the net 5, the net 5 is torn. As the force is distributed by the net 5, the tear propagation stops there. Therefore, even if the film body 1 is torn, it is minimized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a membrane structure building diagram in which a structure for preventing a tear propagation of a membrane body according to the present invention is used for a roof.

FIG. 2 is a diagram showing a first embodiment of a tear propagation preventing structure for a membrane according to the present invention.
It is explanatory drawing which shows an Example.

FIG. 3 is a second view of the structure for preventing the tear propagation of the membrane according to the present invention;
It is explanatory drawing which shows an Example.

FIG. 4 is a third view of the structure for preventing the propagation of tearing of the membrane according to the present invention;
It is explanatory drawing which shows an Example.

FIG. 5 is a diagram showing a fourth embodiment of the tear propagation preventing structure for a membrane according to the present invention.
It is explanatory drawing which shows an Example.

FIG. 6 is a diagram showing a fifth embodiment of the tear propagation preventing structure for a membrane according to the present invention.
It is explanatory drawing which shows an Example.

FIG. 7 shows a sixth embodiment of the tear propagation preventing structure for a membrane according to the present invention.
It is explanatory drawing which shows an Example.

FIG. 8 shows a seventh embodiment of the tear propagation preventing structure for a membrane according to the present invention.
It is explanatory drawing which shows an Example.

[Explanation of symbols]

 Reference Signs List 1 film body 1a film material 1b covering cloth 1c covering cloth 1d covering cloth 2 beams 3 high-strength tape 4 tape 5 mesh

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Koichi Taniwaki 3-20, Sumikatsuda, Hirakata-shi, Osaka Taiyo Kogyo Co., Ltd. F-term in the Hirakata Plant (reference) 2E141 AA07 BB05 CC05 EE03 EE04

Claims (4)

[Claims] 1. A membrane (1) constituting a membrane structure building,
A structure for preventing tear propagation of a membrane in a membrane structure building, wherein a high-strength tape (3) is attached. 2. A film body (1) in which a plurality of film materials (1a, 1a) are welded and connected, and a film material (1a) of a welded portion where the film materials (1a, 1a) are welded to each other. 2. The tear propagation prevention of a membrane in a membrane structure building according to claim 1, wherein a high-strength tape (3) is sandwiched between the first and second layers, 1a), and the membrane (1) and the tape (3) are integrated. Construction. 3. A membrane (1) constituting a membrane structure building,
A structure for preventing the propagation of tears of a membrane, wherein a tape (4) is attached. 4. A membrane (1) constituting a membrane structure building,
A structure for preventing the tear propagation of a membrane in a membrane structure building, wherein a net (5) is attached.