Inflatable structure, also known as "inflatable membrane structure", refers to a structure in which a house is formed by charging air with a film product made of a polymer material. Membrane structure is an important branch of the lightweight space structure. In addition to a variety of shapes, there are excellent architectural characteristics, structural characteristics, and a suitable economy, so the birth of the membrane structure has rapidly developed around the world. The membrane structure building is mainly divided into a tensioned membrane structure, a skeleton membrane structure, an inflatable membrane structure, a cable membrane structure, a tensioning overall structure and a cable dome membrane structure.
Inflatable membrane structure is a relatively closed space structure. Unlike traditional space architecture, it blows air through the fan to the interior of the structure to maintain a certain pressure difference inside and outside the membrane structure to ensure the rigidity of the membrane structure system. The designed shape.
Structure classification:
Inflatable structures are mainly air-inflated and bladder-type two structural forms.
1. The air-bearing structure uses single-layer film directly as the roof and exterior wall, anchors the perimeter on the ring beam or ground beam, and forms a cylindrical, spherical or other shape after inflating. The indoor air pressure of the building is 1.001 of outdoor air pressure. ~1.003 times. People and things enter and exit through air locks. In order to reduce the tensile force of the film and increase the span of the structure, a steel cable net can be arranged on the air-supported structural film.
2. The airbag type structure is to fill air with airbags made of thin film to form basic components such as pillars, beams, arches, plates, shells, etc. The air pressure in the airbags of the building connected by these components is outdoor air pressure. 2 to 7 times, it is a high pressure system.
Structural characteristics:
Inflatable structures began to be used in the 1940s as stadiums, exhibition halls, warehouses, and field hospitals. It is especially suitable for light-moving temporary buildings and semi-permanent buildings. The inflated structure has the advantages of light weight, large span, simple structure, convenient construction, and flexible architectural modeling; the disadvantages thereof are poor heat insulation and fire resistance, and there are gas leakage problems that require continuous air supply.
application:
1, gym application:
Because the membrane structure is endowed with oxygen-enriched and is not affected by the external weather, the membrane structure is widely used in sports fields such as skating rinks, swimming pools, and badminton courts.
2, industrial applications:
The large-area open-work areas in China, such as polluted soil treatment areas, compost disposal areas, hazardous waste disposal areas, and landfill operation areas, can easily spread to the surrounding areas, seriously affecting the lives of surrounding residents. The environment not only physically but also psychologically brings serious harm to people.
Inflatable membrane structure is an innovative architectural form that can be used in large-area open work areas. There is no precedent in the world for organic control of pollutants in the work area and integration with collection and treatment systems.
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