JPS6151115B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for installing a water stop seal and a condensation catcher at a joint portion of a membrane material in an air membrane structure.

``Prior art'' As shown in the plan view of Fig. 3, the so-called air membrane structure consists of a compression ring 1 provided around the building, a wire 2... stretched across it according to the scale of the building, and the wire 2... In this structure, a membrane material 3 is stretched between them to form a roof surface, a pressure greater than the weight per unit area of the roof surface is applied to the chamber, and the roof surface is supported by air pressure. The tensioning of the membrane material 3 is usually carried out by jointing two wires between the ends of the cut membrane material 3 in an area surrounded by the wires 2.

That is, in the original joint configuration, as shown in FIG. 4, a U-bolt 4 and a holding plate 5 made of an aluminum channel are attached to the wire 2, and the holding plate 5 is inserted and fixed into a large aluminum channel 6. The aluminum channel 6 constitutes a plate portion for the membrane material joint (the large aluminum channels 6 are of a predetermined length and are arranged in series with a predetermined joint gap in order to follow the up-and-down posture of the wire 2). , On top of this, the ends of each membrane material 3 divided by wires 2 are processed into a bag shape,
Insert the rope 7 into this, press the large-diameter end with the metal fitting 8 of the mold (with a bolt), and attach the membrane material 3 to the wire 2.
If we make it a fixed relationship with respect to

At this joint part, airtightness and watertightness must be ensured to prevent air leaks and water leakage. It is fixed via a synthetic rubber cushion to prevent damage, and the water-stop seal between the adjacent membrane materials 3 and 3 is fixed by forcing the gasket 9 into the gap between the large diameter portions. This is done by unstable means, and the cover for the metal fitting 8 of the mold is covered by holding the upper neoprene cover 10 on one side with the metal fitting 8 as shown in the figure, and fitting and fixing the other side into the gasket 9. It is done by

On the other hand, 11 in the figure indicates the large aluminum channel 6.
This is a condensation catcher that is attached at the same time as the membrane material 3 is attached to the large aluminum channel 6.
It is made to match the length, and synthetic rubber sections are placed at the joints.

However, the joint section of the above structure has various problems as described below.

(1) In the condensation catcher 11, a situation occurs in which the aluminum profiles collide with each other during the process of inflating the wire 2 from the shortening deflation, which interferes with the behavior of the wire peculiar to the air film structure. In addition, the edges of the hard aluminum shape material may hit the membrane material 3, easily damaging the membrane.

(2) The condensation catcher 11 is constructed by assembling synthetic rubber moldings onto the previously installed aluminum moldings on site, and the connection of dissimilar materials makes the integration weak and water-tightness poor, and because it requires on-site work. There are disadvantages in terms of quality control and safety.

(3) Although the construction of the water stop seal is time-consuming, it is not perfect.

Therefore, the applicant has proposed a joint portion having a longitudinal structure as shown in FIG.

As shown in the figure, in this proposal, the holding plate 5' is fixed in the middle of the U bolt 4' and only presses down the wire 2', and the holding plate 5' is only inserted into the large aluminum channel 6' and fixed by the U This is done by an aluminum channel 12' fixed at the tip of the bolt 4'.

The condensation tray 11' is entirely made of synthetic rubber,
The left and right sides are installed separately.

This serves as a cushion that improves the fit between the membrane material 3' and the large aluminum channel 6', and has the advantage that the membrane material 3' is not damaged.

As described above, since the condensation receiver 11' is entirely made of synthetic rubber, it can easily follow the behavior of the wire 2 during inflation and deflation, and the membrane material 3 will not be damaged.

The left and right condensation receivers 11', 11' are connected to each other by passing a connecting pipe 13 as shown in detail in FIG.

In the figure, reference numeral 20 indicates a connection port formed at a predetermined location of the condensation receiver 11', and reference numeral 21 indicates a fastening fitting.

The water in the condensation pan 11' is finally drained to the outside through the portion where it hits the compression ring 1.

Regarding the condensation catcher 11', there is a level difference between it and the orthogonal wire, which must be treated at the same level. In addition, by interposing a spacer between the holding plate 5' and the aluminum channel 12 and raising the level of the large aluminum channel 6' for the lower wire, it is possible to make them the same.

Next, the upper neoprene cover 10' is formed with a thick wall portion 14 on one side end, and a fitting groove 15 attached to the thick wall portion 14 is inserted into a locking protrusion 16 formed on the mold hardware 8'. The metal fitting 8' of the mold is covered by the metal fitting 8'.

The gap between the thick portions 14 is sealed by inserting a band-shaped gasket 17 into an insertion groove 18 attached to the thick portion 14.

Since this is not a forced joint treatment, it has the advantage of ensuring flexibility in the behavior of the wire 2 and being easy in terms of workability.

If a joint with the above structure is to be constructed in a normal manner, the condensation catcher 1 shown in FIGS.
The upper neoprene cover 1' and the upper neoprene cover 10' are individually rolled into rolls and are pulled out and installed at the site, and then the gasket 17 is finished and assembled as shown in FIG. 8.

That is, after the gasket 17 is assembled, the zipper 23 is inserted into the groove 22 provided at the back of the groove 18 for locking.

Also, in the case of wire intersections, use the condensation catcher 1 mentioned above.
1', the upper neoprene cover 10' is a dead end, and the one in the orthogonal direction which also becomes a dead end;
The corner type connection is made by heat welding, and the gasket 17 is welded so that one of the two intersecting directions is a straight side 17a and the other is a short side 17b, as shown in FIGS. 9a and 9b. Thermal welding connections will be made at the sections 24, .

In both cases, the rolls are rolled out and installed on site.

``Problem to be Solved by the Invention'' However, according to the above construction procedure, the condensation catch 11', the upper neoprene cover 10', and the gasket 17 all require on-site heat welding at wire intersections. Become.

However, thermal welding of synthetic rubber requires heat and pressure, and requires large-scale equipment to perform on-site, making it difficult and dangerous to perform on unstable scaffolds such as membrane structures.

``Means for Solving the Problems'' and ``Operations'' The present invention was made in view of the above circumstances, and its gist is that a wire is connected to a U-bolt as a plate portion for a membrane joint. The paired condensation catcher that is assembled to the large aluminum channel to be attached is entirely made of synthetic rubber, and the upper neoprene cover for covering the metal parts of the mold is shaped with a thick part at one end, A membrane material joint having a thick part provided with a fitting groove for fitting into a locking protrusion shaped on the metal part of the above-mentioned type, and further attached by inserting a band-shaped gasket between the thick parts. Regarding the section structure, the condensation catch placed along the wiring for each cut membrane material and the corner type connection of the upper neoprene cover are made in advance at the factory, and these are attached to the tensioning wire, and then, When performing on-site installation and on-site welding connections of band-shaped gaskets,
The aim is to eliminate the condensation pan and the corner-type connection of the upper neoprene cover, which are difficult and dangerous in on-site work, and to simplify and improve safety.

"Example" This will be explained in detail below based on the drawings.

FIG. 1 shows the planar shapes A to C of the membrane materials 3' in various cut shapes determined from FIG. 3, and FIG. This is what I did.

The encircling lines in the figure indicate the corner portions.

Condensation pan 11' arranged along the line 25
Additionally, the upper neoprene cover 10' is pre-assembled at the factory without the need for field corner connections.

Actually, it is manufactured by connecting the straight part of extrusion molding to a corner mold and pouring molten rubber into the corner mold.

Therefore, there is no need to pull out the rolled material at the site or connect the corner type at the site, and it is only necessary to bring it to the large aluminum channel 6' and assemble it.

Next, the gasket 17 can be installed on the previously assembled upper neoprene cover 10' on-site as in the conventional case.

"Effects of the Invention" As described above, according to the principles of the present invention, the work of attaching the condensation pan and the upper neoprene cover is simplified and safer, which is extremely suitable.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of various cutting shapes of the membrane material, Figure 2 is an explanatory diagram of the wire along each shape in Figure 1, Figure 3 is an explanatory diagram of the membrane structure, and Figure 4 is an explanatory diagram of the conventional membrane. Figures 5a and 5b are explanatory diagrams of the material joint part, and Figures 5a and 6b are explanatory front and side views of the membrane material joint part of the subject of the present invention.
The figure is an explanatory diagram of the connection pipe installation procedure, Figures 7a and b are roll cross-sectional diagrams of the condensation pan and upper neoprene cover, Figure 8 is an explanatory diagram of the installation of the strip gasket, and Figure 9 is an explanatory diagram of the installation procedure of the connecting pipe.
Figures a and b are explanatory diagrams of various on-site connection procedures for band-shaped gaskets. 24...Welded part, 25... Along wiring.

Claims (1)

[Claims] 1. The paired condensation catcher that is attached to the large aluminum channel that is attached to the wire via U-bolts as a plate part for the membrane joint is entirely made of synthetic rubber, and the upper neoprene cover is used to cover the metal parts of the mold. shall be formed by shaping a thick part on one side end, and providing a fitting groove in the thick part to fit into the locking protrusion shaped in the metal part of the mold, and further, the thickness In the case of a membrane material joint structure in which a gasket in the form of a band is inserted between the sections to attach the membrane material, the condensation catch placed along the wire for each cut membrane material and the corner type connection of the upper neoprene cover are prepared in advance at the factory. A waterproof seal for a joint part of a membrane material in an air membrane structure, which is characterized in that the seal is attached to a tension wire, and then a band-shaped gasket is installed on-site and a welded connection is performed on-site. Installation method for condensation catcher.