JPH03206271A - Film roof utilizing pneumatic truss - Google Patents

Abstract

PURPOSE:To simplify constitution of a roof and to shorten a term of works by employing a compression member as a pneumatic column and high strength fibers as a tension member, and supporting a film room to a truss being a light structure. CONSTITUTION:An air truss unit 2 to support a film roof 1 comprises a pneumatic column 3 made of a plastic film reinforced by glass fibers, a cross pneumatic column 4 formed of the same material as that of the pneumatic column, and fibers 5, 6, and 7. A compression force member forms the pneumatic column, and a tension member is formed of a similar material. The truss 1 is formed by combining together various members and decreased in weight to support the film roof. This constitution simplifies constitution of a roof and shortens a term of works.

Description

[Detailed description of the invention] (a) Industrial application field This relates to improvements to make it easier to use I-structured buildings, which have recently become popular. The membrane building that will be built during the Senri Expo,
It was exhibited for the first time in the American pavilion, and it achieved great development.

However, this method pressurizes the entire space and supports the entire mock loop with air pressure, and the airtight structure of this space,
Air locks at entrances and exits, complete air conditioning equipment, etc. are required.

In addition, some are supported by cables or lightweight frame rugs,
There is no great track record.

(c) Problems to be solved by the invention Space pressurized air domes require a fan drive for pressurization, consumption of energy, increased cost due to the airtight structure of the space, and special structure of the air lock at the entrance/exit. There is a problem with this.

Air conditioners also need to be operated for almost the entire season, and cannot be expected to provide ventilation and cooling through natural wind, as is the case with open air conditioners. Of course, even if the energy loss caused by wasteful leakage is reduced, the overall energy consumption inevitably increases in the end.

(2) Means for solving the problem The present invention will be explained with reference to the drawings. In Fig. 1, this is a configuration diagram, and 1 is a membrane loop, which is a membrane body similar to that of Tokyo Dome. There is one T which is not supported by the T. , it does not require the same degree of airtightness as the pneumatic dome, has better resistance to rain penetration, and is simpler. 2
is a pneumatic truss unit, and the truss is a unit that can be assembled into units of arbitrary size to form a whole, and is intended to facilitate mass production, simplify operation, and shorten construction time. shall be. Also, with this system, the air pressure can be released and the bag can be folded into a small size, which is advantageous for stocking.

3 is a pneumatic cylinder, which is a cylinder made of blastig film reinforced with glass fiber, carbon fiber, or carbon fiber, and compressed air of several to 10 atmospheres is put inside. This allows it to support the weight like an air spring, creating a compression member. However, since it is not a bellows-type elastic material like an air spring, it is thin and has a high internal pressure. 4 is a cross pneumatic cylinder, which is also made of the same material, and is attached to the pneumatic cylinder 3 at a different point in the elongated direction at right angles here and there in the shape of a branch pipe. Air pressure naturally works together and becomes a compressive force member. 5 is a fiber, which is made by combining glass fiber, carbon fiber, etc. with an adhesive, has a large resistance force in line with the tensile force, and becomes a tensile force member of the truss. In the figure, this is used in the part where tensile force is applied, and it effectively constructs a lightweight truss. 6 is also a fiber and is used for the member on the opposite side. 7 is also a fiber, which is a tensile force member for connecting the units 14 and 2 together.

(E) Function Ordinary solid ζKoyoru 1 laths are used in many bridges and buildings. Wire lobes and the like are used as tension members in suspension bridges. However, compression members and are exclusively made of steel materials such as ITZ steel and steel plates.
There was no single case where pneumatic membrane products were used.

The l/las is a material that can bear a large load with as little material as possible by combining the members of the species lx

According to the present invention, the compression member is a pneumatic cylinder made of lightweight, high-strength glass resin, carbon fiber and plastic, and the fibers of the tension member are also made of similar materials, which are lightweight and very advantageous. be. Basically, the compressive force is supported by air pressure and does not require weight. This air pressure varies somewhat depending on the outside temperature, but it is sufficient to withstand the winter, and in the summer the pressure is higher than necessary, but this is not a problem because the pneumatic membrane is strong.

It is just like tires for cars.

In the present invention, the cylinder of the pneumatic membrane is thin-walled and can be folded into a small size when the air pressure is released, making it easy to carry. It is.

Also, unlike steel materials, there is no need to worry about corrosion and it has excellent weather resistance.
4. Supplementary IB such as painting is unnecessary, and it also has good lighting, which saves on the electricity bill of Himei. In short, in modern Z-ming, there are many things that are supported by air pressure, such as automobile tires and air springs for railway vehicles, and the present invention also falls into this field.

(f) Effects of the invention The roofs of buildings can be constructed more simply, require less construction work, are cheaper, and are maintenance-free, which greatly contributes to the improvement of people's lives.

[Brief explanation of drawings]

Claims (1)

[Claims] A membrane loop that utilizes a pneumatic truss, which is constructed of a truss that employs pneumatic cylinders as compression members and high-strength fibers as tension members, as a lightweight structure for supporting the membrane loop.