JPH05171843A - Supporting structure of cable in roof sheet - Google Patents

Abstract

PURPOSE:To remarkably simplify the supporting structure of a cable and greatly lighten the supporting member by arranging a cable at the outside of a sheet body constituting the roof sheet and reducing compulsive loads acting between the sheet body and the cable. CONSTITUTION:A sheet roof 14 is provided with a sheet body 24 composed of an interial sheet 20 and an exterial sheet 22 as a double-sheet structure and a cable 26 arranged at the outside of the sheet body 24. A heat-insulating material 28 is interposed between the interial sheet 20 and the exterial sheet 22. The interial sheet 20 and the exterial sheet 22 are combined with melting at the position of the cable 26. The central part of a wound belt 38 attached with fasteners 36 at both ends thereof is fixed at the outside of the combined part 34. A jointing sheet 40 branched from both sides of the wound belt 38 is extended to the outside of the exterial sheet 22. The wound belt 38 is applied around the cable 26 and the fastener 36 is fastened. The cable 26 is covered with the jointing sheet 40 on the outside thereof. And the heat-insulating material 42 is filled in the inside of the jointing member 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane roof structure in which a roof membrane stretched over a large space facility is supported by a cable.

[0002]

2. Description of the Related Art In recent years, there has appeared a structure in which a roof of a structure such as a large space facility having a pillarless structure such as a dome is constructed as a membrane roof. In this membrane roof structure, the upper end portion of the outer wall surrounding the large space facility is covered with a roof membrane formed of a waterproof flexible membrane. The membrane roof is inflated (inflated) by injecting air into the facility, and a dome-shaped roof having a bulged central portion in the inflated state is configured. Further, in order to prevent the membrane roof from being fluttered due to the influence of wind or the like, it is usually supported by a cable installed between opposing outer walls.

The above-mentioned cable is, for example, an actual fair 2-248.
As disclosed in Japanese Patent Publication No. 57 (E04H 15/54), the membrane roof is arranged inside the membrane body, that is, inside the facility, so that the cable is fixed to the membrane body through the mounting hardware. It has become.

[0004]

However, in such a conventional membrane roof structure, as described above, the membrane body and the cable constituting the roof membrane are fixed inside the membrane body through the mounting hardware. Therefore, when injecting air into the facility to inflate the membrane roof, it is necessary to lift a considerably heavy cable in a suspended state. Therefore, an unreasonable load is generated between the film body and the cable. The load at this time is input to the attachment portion of the membrane and the cable. Therefore, it is necessary to remarkably increase the strength of the attachment metal for fixing the cable, which inevitably increases the weight of the attachment metal and makes it expensive.

In view of such conventional problems, therefore, the present invention arranges the cables outside the membranes constituting the membrane roof to reduce an unreasonable load input between the membranes and the cables. Accordingly, it is an object of the present invention to provide a cable supporting structure for a membrane roof, which can significantly simplify the structure of the supporting portion of the cable and can achieve a significant weight reduction of the supporting portion.

[0006]

In order to achieve the above object, the first structure of the present invention comprises a film body covering the upper side of a large space facility, and a cable supporting the film body at appropriate intervals. In the membrane roof, the cable is arranged outside the membrane body, and a wrapping band around which the cable is detachably wound is fixed via a fastener to the outer side surface of the membrane body corresponding to the portion where the cable is arranged. The cable is supported on the membrane through the winding band.

Further, in order to achieve such an object, the second structure of the present invention is that the inner wall of the membrane body covering the upper side of the large space facility is
In a membrane roof having a double membrane structure with an outer membrane, and a heat insulating material interposed between these inner membrane and outer membrane, and a cable supporting the membrane body at an appropriate interval, the cable is placed outside the membrane body. The inner membrane and the outer membrane are joined together at a location where the cable is placed, and a wrapping band that is detachably wound around the cable is secured to the outer surface of the joined portion via a fastener, On both sides of this winding band, a joint film that branches from the outside of the film body and covers the outside of the cable is extended, and while supporting the cable on the film body through the winding band, The outside of the cable is covered and the inside of this joint membrane is filled with insulation.

[0008]

In the cable supporting structure for the membrane roof according to the first configuration of the present invention having the above-described configuration, the cable arranged outside the membrane is wound with the winding band fixed to the outer surface of the membrane. By turning, the cable and the film body are attached. Therefore, by arranging the cable on the outside of the membrane body, the membrane body can push up the cable when the membrane roof is inflated, and when the inflation is completed, the membrane body is supported while being pressed by the cable. Therefore, the attachment strength between the film body and the cable can be reduced. Therefore, it is possible to secure sufficient strength of the cable support by the support by the winding band, and it is possible to significantly reduce the weight of the support portion. Further, since the winding band can be attached and detached via the fastener, the cable attaching work can be remarkably simplified.

Further, in the cable supporting structure for the membrane roof according to the second structure of the present invention, the membrane body has a double membrane structure with an inner membrane and an outer membrane, and heat insulation is provided between the inner membrane and the outer membrane. The present invention is applied to a membrane roof in which a material is interposed. In addition to the function according to the first configuration, a joint membrane branched from the outside of the membrane on both sides of the winding band extends outside the cable. Since the inner wall of the joint membrane is covered with the heat insulating material, the heat insulating effect of the joint portion between the inner membrane and the outer membrane where the cable is arranged can be improved.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 4 show an embodiment of a membrane roof structure according to the present invention, FIG. 1 is a schematic configuration diagram showing a cross section of a large space facility to which the present invention is applied, and FIG. 2 is a line AA in FIG. 3 is an enlarged sectional view corresponding to FIG. 3, FIG. 3 is a sectional view corresponding to line BB in FIG. 2, and FIG. 4 is an enlarged view of the holding member.

That is, the large space facility shown in FIG. 1 is used as an artificial ski resort 10, and outer walls 12, 12 which are continuous in the direction perpendicular to the plane of the drawing in the figure are constructed on both sides.
A membrane roof 14 is stretched between the upper ends of the two members 12. The floor surface 18 of the large space portion 16 formed by the outer walls 12 and 12 and the membrane roof 14 is continuously inclined in the extending direction of the outer walls 12 and 12, and the floor surface 18 is artificially attached to the inclined floor surface 18. It is possible to glide on the snow by forming snow on the slope.

The membrane roof 14 is inflated by injecting air into the inside in a solid line state in FIG.
Further, the two-dot chain line state indicates a state in which the internal air pressure is removed and the air is deflated.

As shown in FIG. 2, the membrane roof 14 includes a membrane body 24 having a double membrane structure composed of an inner membrane 20 and an outer membrane 22, and a cable 26 arranged outside the membrane body 24. And is configured. The inner membrane 20 and the outer membrane 2
A heat insulating material 28 is interposed between the two and the membrane roof 14 is configured as a heat insulating membrane roof. In addition, the cable 26
A plurality of the outer walls 12 are stretched between the upper end portions of the outer walls 12 in the extending direction of the outer wall 12 (the direction perpendicular to the paper surface in the drawing) at appropriate intervals.

A machine room 30 and a lift room 32 are provided outside the outer walls 12, 12, and an air conditioner, an artificial snowmaking machine, a snow gun, etc. are installed in the machine room 30.

Here, in the cable supporting structure for the membrane roof of the present embodiment, as shown in FIG.
0 and the outer membrane 22 are bonded to each other by fusing at the position where the cable 26 is arranged, and the inner membrane 20 and the outer membrane 22 are integrated at the joint portion 34.
It should be noted that the heat insulating material 28 is eliminated at the joint portion 34.

Further, the outer membrane 22 in the connecting portion 34 is
A central portion of a winding band 38 having fasteners 36 attached at both ends is fixed to the outer side of the outer membrane 2 and the outer membrane 2
On the outside of 2, branch from both sides of the winding band 38,
Coupling membranes 40, 40 covering the outside of the cable 26 are extended. A magic fastener is used as the fastener 36.

As shown in FIG. 2B, the winding band 38 is wound around the cable 26 and the fastener 36 is engaged with the cable 26, so that the cable 26 is attached to the film body 24.

Further, after the cable 26 is attached to the membrane 24 via the winding band 38, air is injected into the large space 16 to inflate the membrane roof 14 as shown in FIG. In this inflated state, the joint membranes 40, 40
Are arranged so as to cover the outside of the cable 26, and the respective tip portions are folded and fused to each other. Then, the inside covered with the joint films 40, 40 is filled with a heat insulating material 42.

In the cable supporting structure for the membrane roof according to the present embodiment having the above-described structure, the membrane body 2 is provided through the winding band 38.
Since the cable 26 is supported on the outer side of the membrane roof 4, the cable 26 is pushed up as the membrane roof 14 rises when the membrane roof 14 is inflated. When the membrane roof 14 is completely inflated, the cable 26 restricts the rise of the roof membrane 14, and the cable 26 supports the membrane roof 14 in this state.

Therefore, since the membrane roof 14 is supported in the inflated state and the membrane body 24 is pressed against the cable 26, the attachment strength between the membrane body 24 and the cable 26 can be reduced. .. Therefore, the supporting strength of the cable 26 can be sufficiently ensured while being supported by the winding band 38, that is, the winding band 38 is locked via the fastener 36, and the cable supporting portion is remarkably The weight can be reduced.

The winding band 38 is a fastener 36.
Since it is detachable via the cable 26, when the cable 26 is attached to the film body 24, it is only necessary to wind the winding band 38 around the cable 26 and lock the fastener 36. Can be converted.

Further, in the present embodiment, the membrane 24 has a double membrane structure with the inner membrane 20 and the outer membrane 22.
By interposing the heat insulating material 28 between the outer membrane 22 and the outer membrane 22, the membrane roof 14 can be configured as a heat insulating membrane roof, and it is possible to significantly reduce the influence of the outside air temperature in the large space portion 16 and to improve indoor artificialness. The air conditioning effect of the ski resort 10 can be significantly improved.

Furthermore, in this embodiment, the cable 26 is used.
The outer side of the joint membrane 4 is covered with the joint membranes 40, 40.
The inside of 0 is filled with the heat insulating material 42.
Therefore, the inner membrane 20 to which the cable 26 is attached
The heat insulating material 42 can also cover the joint 34 between the outer membrane 22 and the outer membrane 22. Therefore, it is possible to prevent the outside temperature from affecting the large space portion 16 from the connecting portion 34, and it is possible to further improve the heat insulating effect in the indoor artificial ski resort 10.

In the present embodiment, the case where the present invention is applied to the membrane roof 14 of the indoor artificial ski resort 10 is disclosed, but the present invention is not limited to this, and other large space facilities using the membrane roof, for example, a general dome. It goes without saying that the membrane roof structure of the present invention can be applied to the above.

[0025]

As described above, in the cable mounting structure for the membrane roof according to the first aspect of the present invention, the cable is arranged outside the membrane and the cable is fixed to the outer surface of the membrane. Since the film is attached to the film through the winding band, the film is pressed by the cable when the roof film is inflated, and the attachment strength between the film and the cable can be reduced. The strength can be sufficiently secured by simple cable support by. Further, since the winding band can be attached and detached via the fastener, the cable attaching work can be remarkably simplified, and the construction work of the membrane roof can be speeded up and the cost can be reduced.

Further, in the cable supporting structure for a membrane roof according to claim 2 of the present invention, the membrane has a double membrane structure with an inner membrane and an outer membrane, and a heat insulating material is provided between the inner membrane and the outer membrane. In the membrane roof with the interposition of, the inner membrane and the outer membrane are joined together at the position where the cable is arranged, and the cable is supported on the outer surface of the joined portion through the winding strip, while the winding strip is formed. Since the outer side of the cable is covered with a joint membrane that is branched from both sides of the membrane and extends from the outer side of the membrane, and the inside of this joint membrane is filled with a heat insulating material, the membrane has a double membrane structure with a heat insulating material interposed. In addition to significantly improving the heat insulating effect of the roof, the heat insulating material of the joint membrane portion can significantly improve the heat insulating effect of the joint portion between the inner membrane and the outer membrane where the cable is arranged. Play.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a cross section of an indoor artificial ski resort to which the present invention is applied.

FIG. 2 is an enlarged cross-sectional view corresponding to line AA in FIG. 1 showing the cable supporting process of the membrane roof in order according to one embodiment of the present invention.

[Explanation of symbols]

 10 Artificial Ski Area (Large Space Facility) 12 Outer Wall 14 Membrane Roof 20 Inner Membrane 22 Outer Membrane 24 Membrane 26 Cable 28 Heat Insulation Material 34 Joining Part 36 Fastener 38 Wrap Band 40 Tie Membrane 42 Heat Insulation Material

Claims (2)

[Claims] 1. A membrane roof comprising a membrane body covering an upper side of a large space facility and a cable supporting the membrane body at appropriate intervals, wherein the cable is arranged outside the membrane body, and the cable is arranged. The winding band for removably winding the cable is fixed to the outer surface of the film body corresponding to the portion to be fastened via a fastener, and the cable is supported on the film body via the winding band. Membrane roof cable support structure. 2. A membrane covering the upper side of a large space facility has a double membrane structure consisting of an inner membrane and an outer membrane, a heat insulating material is interposed between the inner membrane and the outer membrane, and the membrane is supported at an appropriate interval. In a membrane roof provided with a cable to be arranged, the cable is arranged outside the membrane body, and the inner membrane and the outer membrane are joined together at a portion where the cable is arranged, and a fastener is attached to an outer surface of the joined portion. Via which a winding band for removably winding the cable is fixed, and a joint film that branches from the outside of the film body and covers the outside of the cable is extended to both sides of the winding band, and the winding is performed. A cable support structure for a membrane roof, characterized in that the cable is supported by a membrane through a band, the joint membrane covers the outside of the cable, and the joint membrane is filled with a heat insulating material.