JPH0674677B2 - Dome roof air film structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to an air film structure for a dome roof, and more particularly to an air film structure for a dome roof that supports a film material by the pressure of air from the inside.

(Prior Art) Conventionally, as an air film structure of this kind of dome roof, for example, there is one as shown in FIG.

That is, in this conventional one, a truss-shaped frame 22 is formed by the steel frame member 21, a plurality of the frames 22 are erected on the ground 24, and the film material 23 is stretched on the frame 22. . Then, in use thereof, air is supplied to the internal space by a blower to pressurize the film material 23 from the inside and bulge it outward to support it.

According to this, even if a failure or the like occurs in the blower and the pressure applied to the film material 23 cannot be maintained, or even if the film material 23 is damaged, the frame material 22 supports the film material 23. In addition, there is an advantage that the film material 23 can be prevented from falling.

(Problems to be Solved by the Invention) However, in the above conventional air film structure, a frame formed in a truss shape by welding each steel frame member 21 having a predetermined shape.
Since 22 is used, not only a great manufacturing cost is required, but also the work performed at a high place becomes extremely complicated, resulting in a great problem that the safety during construction is remarkably lacking. It was.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and the purpose thereof is to perform construction work at a high place extremely easily and safely while maintaining the above-mentioned conventional advantages. Not only the weight of the entire structure can be reduced,
Moreover, it is to provide an air film structure for a dome roof that can be manufactured at low cost.

(Means for Solving the Problem) That is, in order to achieve the above-mentioned object, the present invention stretches a plurality of cables 9 ... On a plurality of support rods 7 ... Then, the string beam structure 14 is formed,
Further, a film material 19 is stretched on the stringed beam structure 14 to provide an air film structure of a dome roof.

Further, the pressing cable 20 may be stretched over the film material 19.

(Operation) Therefore, in the dome roof air film structure characterized by the above structure, when air is supplied to the internal space by a blower or the like, the dome in which the film material 19 bulges outward through the string beam structure 14 The roof will be formed.

Further, when the presser cable 20 is stretched over the film material 19, the presence of the presser cable 20 causes the film material 19 to be formed into various bulging shapes, so that the position where the presser cable 20 is stretched can be arbitrarily set. By changing it, a dome roof having a desired appearance can be constructed.

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

In FIG. 1, reference numeral 1 indicates a dome roof. Reference numeral 2 denotes an arch-shaped supporting bone constituted by connecting a plurality of arch members 3 made of steel formed in a substantially arc shape by joint members 4 ... As shown in FIG. The arch members 3a, 3a are fixed to pedestals 6, 6 as a base provided on the ground 5, and a plurality of supporting bones 2 ... Having such a structure are formed in desired dimensions and are erected at predetermined intervals. There is. In FIG. 2, reference numerals 7 ... Denote a support rod made of a substantially rod-shaped steel material that is radially provided on the upper portion of the support bone 2 at desired intervals, and the upper and lower ends of the support rod 7 are shown in FIG. Multiple holes 8
... is drilled.

9 is a cable made of a wire rope having a fork end 10 at one end and an eye end 11 at the other end as shown in FIG. 4, and a shackle 12 is attached to the fork end 10 A shackle 12 is attached to the end 11 via a turnbuckle 13, and as shown in FIG. 2, between adjacent support rods 7 and 7 of the same support bone 2, and different support bones 2 as shown in FIG. A plurality of cables 9 ... Are stretched between the supporting rods 7 ... Using the holes 8 to form a tension beam structure 14. Further, reference numeral 15 in FIG. 1 denotes a column which is erected on the ground 5 on one end side, and a plurality of the cables 9 are stretched between the column 15 and the support bone 2a on one end side.

In FIG. 3, reference numeral 16 denotes a joint cloth made of vinyl chloride resin-coated polyester woven cloth. The joint cloth 16 is folded in two and eyelets 17 are attached at predetermined intervals in the longitudinal direction. A racking rope 18 is inserted through the holes 17 and is hung around a cable 9 stretched between the support rods 7 of the different support bones 2 as described above. Reference numeral 19 denotes a film material made of a vinyl chloride resin-coated polyester woven cloth, which is sewn at both ends of the joint cloth 16 and stretched so as to seal the internal space. In FIG. 1, 20 ... is the support column
15 shows a presser cable stretched from 15 onto the membrane material 19,
As shown, a fork end 10 is provided at one end and an eye end 11 is provided at the other end, which is a wire rope, and a turn buckle 13 is attached to the eye end 11.

Although the dome roof 1 according to the present embodiment has the above-mentioned configuration, when using this, first, air is supplied into the dome roof 1 by a blower (not shown), whereby the dome is formed. The inner space of the roof 1 is filled with air, and the film material 19 bulges outward. In this case, the film material 19
Since the presser cable 20 is stretched on the upper side,
As shown in FIG. 6 and line 19a in FIG. 6, the film material 19 swells in various shapes, so that the tension position of the pressing cables 20 ... Can be arbitrarily changed or its tension can be adjusted. Thus, the dome roof 1 having various forms with different bulging shapes can be obtained.

Further, since the air film structure according to the present embodiment is constructed by stretching the lightweight cable 9 made of a wire cable between the supporting bones 2 ... to form the string beam structure 14, the construction work at the site is not required. There is a great advantage that the work can be carried out extremely easily and quickly without any inconvenience that complicates, and thus work at high places can be performed safely.

Further, even if the blower fails or the film material 19 is damaged, the film material 19 is supported by the tension beam structure 14, so that the falling or the like can be prevented well, and the tension beam structure 14 is The rigidity and strength of the dome roof 1 itself can be sufficiently secured.

In the above embodiment, the supporting bone 2 is connected to the arch member 3 having a substantially arc shape, but the specific structure of the supporting bone 2 is not limited to this. The point is that the supporting bone may be formed in an arch shape.

Further, the concrete configuration of the stringed beam structure 14 formed by the plurality of cables 9 via the supporting rods 7 of the supporting bones 2 does not matter. In short, it suffices that the tension beam structure 14 is formed on the supporting bone 2 by suspending the plurality of cables 9 on the plurality of supporting rods 7 ...

Further, although the turnbuckle 13 is used for the cable 9 and the presser cable 20 in this embodiment, they may be constituted by wire ropes only, and the supporting rod 7 and the support pole of each of these cables 9 and 20 may be used. The means for attaching to 15 is not limited to the embodiment, and its specific configuration is not limited.

Furthermore, the tension position of the presser cable 20 does not matter, but the tension of the film material 19 can be changed by arbitrarily changing the tension position.
Thus, the dome roof 1 bulging into various shapes can be obtained.

Furthermore, although the membrane material 19 is made of vinyl chloride resin-coated polyester woven fabric in the above-mentioned embodiment, the specific material is not limited to this, and the cable 9 is used as in the embodiment.
When the film material 19 is attached to the bonding cloth 16 having the racking rope 18 that is hung on the wall, the wrinkles of the film material 19 can be removed through the bonding cloth 16 by adjusting the tension of the racking rope 18. However, the film material 19 can be directly joined to the support rod 7 by providing a connection member or the like on the support rod 7, and the specific joining means is not critical.

Besides, the specific configurations of the respective parts such as the shape of the support rod 7 and the film material 19 can be arbitrarily changed in design within the scope intended by the present invention.

(Effects of the Invention) As described above, the present invention is one in which a plurality of cables are stretched over a plurality of support rods protruding from an arch-shaped support bone to form a string beam structure. Since the stringed beam structure can be formed by suspending a lightweight cable on a supporting rod, like a conventional one in which a truss-shaped frame is formed by a steel frame member,
Since the construction work is not complicated, it is extremely simple and quick, and not only can work in high places be performed safely, but also the cost can be significantly reduced, so the special effect was obtained. is there.

Also, since the above-mentioned stringed beam structure has sufficient rigidity and strength, even if the membrane material stretched over the stringed beam structure cannot maintain its pressurized state due to a failure of the blower or the like, it is supported by this stringed beam structure. There is no possibility that the film material will be dropped and fall.

Further, when the pressing cable is stretched on the membrane material stretched on the above-mentioned stringed beam structure, the membrane material which is pressurized from the inside and bulges outward is variously bulged by the pressing cable. Since it is formed into a shape, the dome roof having a desired appearance can be formed by arbitrarily changing the tension position of the pressing cable or adjusting the tension thereof. It will be.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention, FIG. 1 is a plan view of a dome roof, FIG. 2 is a sectional view taken along line XX of FIG.
FIG. 3 is a perspective view showing a joined state of the stringed beam structure and the membrane material, FIG. 4 is a perspective view of a cable, FIG. 5 is a perspective view of a holding cable, and FIG. 6 is a plan view showing a use state of a dome roof. FIG. 7 shows a conventional example, in which (a) is a sectional view of the dome roof, and (b) is a partially enlarged view. 2 ... Supporting bone, 7 ... Supporting rod 9 ... Cable, 14 ... Stranded beam structure 19 ... Membrane material, 20 ... Presser cable

Continuation of the front page (56) References JP-A-60-98066 (JP, A)

Claims (2)

[Claims] 1. A tension string beam structure 14 is formed by stretching a plurality of cables 9 on a plurality of support rods 7 protruding from an arch-shaped support bone 2, and on the string string beam structure 14. The film material
An air film structure for the dome roof, which is characterized in that 19 are stretched. 2. The air film structure for a dome roof according to claim 1, wherein a holding cable 20 is stretched over the film material 19.