JPH0322517B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a membrane roof in a building with an air membrane structure.

(Prior art) For example, as shown in Fig. 4, a conventional membrane roof has an elliptical ring beam B with a total of eight cables C,
There is a method in which Ca is stretched diagonally, a membrane panel P is stretched in a space divided by cables, each panel is tied to the cable, and then air is blown with a blower to inflate the membrane. And membrane panel P
Usually, three to four membrane materials are connected by welding, and the four circumferences are folded back and welded.

(Problems to be Solved by the Invention) With conventional membrane roofs, there are many spaces partitioned by crossing cables, which increases the number of membrane panels, which requires time and effort for membrane processing, and reduces the need for membrane cables. The construction is time-consuming, and it is necessary to use rubber gaskets to ensure watertightness and airtightness at the joints between membrane panels, which does not necessarily ensure sufficient airtightness.

(Means for Solving the Problems) In the present invention, both the upper and lower cables 2 and 3 intersect with each other, and are connected and fixed at the intersection through a membrane support fitting 4, and both ends of the upper and lower cables are connected to the lower frame 1. It is stopped at. A membrane material 6 is stretched between the upper cables 2, and the membrane material is stretched in the direction of the upper cable. The lower cable 3 is connected to the membrane material 6 only through the membrane support fitting 4, ensuring roof rigidity.

(Example) An example of the present invention will be described below based on the drawings.

In Figures 1 and 2, the ring beam 1a of the lower frame 1 has a
Cable 2 is fastened on top of the book. Both ends of the two lower cables 3 that intersect with the upper cable 2 are also connected to the ring beam 1. It is fixed at a. Membrane support fittings 4 are attached to the upper cable 2 in an upright position at predetermined intervals as shown in FIG. The supporting plate 5 is fixed. Membrane material 6 stretched along between the upper cables 2 and 2
Both side portions of are located on a support plate 5, and are held between this support plate and channel-type holding members 7, 7 and fixed with bolts 4a and nuts 4b. Wire rods 8, 8 are wound around both ends of the membrane material 6, passed through the lower part of the presser member 7, and passed upward to cover both presser members, and the butted ends are welded to seal the covered portion 9.

The lower cable 3 is fixed at the intersection with the upper cable 2 with a fixing clamp 10 to ensure the rigidity of the roof surface.
It does not engage with the membrane material 6. A connecting rod 10a attached to the clamp 10 is connected to the lower cable 3.

As shown in FIG. 3, the membrane material 6 is made by joining a large number of membrane bodies of the same shape at welded parts 6a to form one elongated rectangular panel, folded around the four circumferences, and formed into a folded side 6b.
is welded to the back side. In the above example, the roof surface is divided into six sections by the upper cable 2, so six membrane materials 6 are used.

If the cable configuration in this example (upper cable 2 is
When adapting the lower cable 3 (two lower cables 3) to the conventional example, the space divided by the crossing cables is 18
18 sheets of membrane material are required.

Therefore, in this example, the number of membrane materials is reduced to 1/1 compared to the conventional example.
3.

(Effects of the Invention) As explained above, according to the present invention, since the membrane material is stretched and fixed between the upper cables in only one direction, the number of membrane panels can be reduced, which facilitates membrane processing. The installation work is not time-consuming, and there are fewer joints with adjacent membrane materials on the roof surface, which improves airtightness and increases the flexibility in fitting the membrane materials.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the installation state, Figure 2 is an enlarged sectional view showing the configuration of the intersection of the upper and lower cables,
FIG. 3 is an enlarged perspective view of the membrane material, and FIG. 4 is a plan view of a conventional example. 1...Lower frame, 2...Upper cable, 3...Lower cable, 4...Membrane support fitting, 5...Support plate, 6
...Membrane material, 10...Fixing clamp.

Claims (1)

[Scope of Claims] 1. An upper cable that spans in one direction and has both ends fixed to the lower frame, and an upper cable that intersects with the upper cable and is connected at the intersection via a membrane support fitting, and both ends are fixed to the lower frame; A membrane roof consisting of a lower cable that ensures roof rigidity, and a membrane material that is stretched and fixed between the upper cables and connected to the lower cable only through the membrane support fittings.