JPS6078074A - Construction of air film roof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a pneumatic membrane roof used for sports stadiums and the like.

As shown in Figure 1, by crossing the cable 1 on the roof surface and placing a membrane material on the top surface, the air pressure in the room is made higher than atmospheric pressure, thereby increasing the roof surface of the air membrane structure that makes up the roof surface. When constructing, the conventional construction method is as follows. That is, after constructing the supporting frame 2 for the membrane roof, the cable 1 is installed in the deflated position so that the roof 3 is always in use when inflated, as shown by the chain line in Figure 2. Membrane materials and fastening hardware were being installed at high places using a rolling tower and boom truck 4. After attaching the fastening hardware 5 and the membrane material, air was introduced into the room, and the cable 1 and the membrane material were inflated together to construct the roof 3.

According to the method described above, attaching bare metal objects to cables is dangerous due to high-altitude work, and it is necessary to carry a small amount of material and move a heavy burr such as a boom truck at each work position. Particularly in the case of a pneumatic membrane roof, since there are a large number of fastening hardware, the above-mentioned problems are significant both in terms of efficiency and economy. Additionally, the sports stadium has tiered seating at the bottom, making it difficult to move heavy machinery around the inner periphery.

The present invention aims to solve the above problems.

A feature of the present invention is a method of attaching fastening hardware to the cable in advance. That is, in the present invention, the cable is first marked with a fastening hardware on the ground, then the fastening hardware is attached to the cable on the ground, and then the cable is hoisted to the deflated position, the membrane material is applied, and air is introduced into the room. The roof membrane is then inflated. When pre-attaching fastening hardware on the ground, placing the cable on the east side will make the pre-attachment work easier.

Embodiments of the present invention will be described below with reference to FIG.

A socket is attached to the end of the cable 1 to be constructed, and then markings are made for attaching a fastening hardware 5 such as a cross clamp, a stopper fitting, or a clamp for supporting a membrane material. The markings are color-coded depending on the type of fastening hardware 5, as described later, and marks are placed directly above the cable 1 at a constant pitch so that the cable 1 can be installed without twisting.
Or draw a line.

Next, the cable 1 is set using a bundle 6, a hanging wire 7, etc. at a height that is convenient for the worker on the ground floor F. Therefore, various types of fastening hardware 5 are attached to the marked locations on the cable 1.

In this way, once the fastening hardware 5 has been attached to the cable 1 on the ground, the cable 1 can be attached using a hanging wire or the like.
is lifted to the deflate position D of the membrane roof, and the socket at the end is supported on the support frame 2.

Then, using a hanging scaffold or the like, a covering material is stretched over the cable 1 and air is sent into the room to push it up to the roof 3, an inflated position I, thereby constructing a dome roof.

The marking method will be explained using the membrane material support clamp 5a shown in FIGS. 4 and 5 as an example. This support clamp has two holding plates 5a1 and 5a2, and both holding plates have bolts 5a3.
By tightening the nut 5a4 attached to the cable 1, the cable 1 is clamped and the support clamp is properly fixed to the cable and stands upright.

When installing this support clamp, as shown in FIG. 4, make a mark 8 on the cable 1 with the same length as the holding plate 5a1, align the holding plates 5a1 and 5a2 with this mark, and then tighten the nut. 5a4 to secure the support clamp.

Further, as shown in FIG. 5, a mark 8a is made with a pump at the center of the holding plate 5a1 on the upper side of the support clamp 5a, a mark 8b is also made directly above the cable 1, and the mark 8a on the side of the support clamp is attached to the cable. Attach the support clamp 5a to the cable 1 so as to match the mark 8b of the cable 1.

9 is a membrane support plate, 10 is a membrane material, and 11 is a membrane pressing body.

As described above, in the present invention, after marking the cable for attaching the fastening hardware, the fastening hardware is first attached to the cable on the ground, and then the cable is hoisted to the deflated position, and then the membrane material is applied and air is sent into the room. Since the roof membrane is inflated using the method, the air membrane roof can be constructed safely, efficiently, and economically.

[Brief explanation of the drawing]

Fig. 1 is a cable layout diagram of a pneumatic membrane roof, Fig. 2 is an explanatory diagram showing a process of the conventional air membrane roof construction method, and Fig. 3 is a process of the construction method of a pneumatic membrane roof of the present invention. FIG. 4 is an enlarged sectional view showing the state in which the fastening hardware is attached to the cable, and FIG. 5 is an enlarged sectional view showing the state in which the membrane material is attached to the fastening hardware. 1... Cable, 5... Fastening hardware, 6... Bundle, 7...
・Hanging wire, 8, 8a, 8b...mark,
D... Deflation position, ■... Inflation position. Engraving of the drawings (no changes to the content) Figure 2/3 Figure 3 f completed Figure 4
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Claims (1)

[Claims] After marking the cable for fastening fittings, attaching the fastening fittings on the ground first, then hoisting the cable to the deflated position and applying the membrane material, and finally inflating the roof membrane by blowing air into the room. A method of constructing an air membrane roof featuring: