Inflatable membrane structure is an important branch of light space structure, in addition to colorful shape, there are excellent architectural characteristics, structural characteristics, and appropriate economic type, so the birth of membrane structure, quickly developed around the world. The membrane structure is mainly divided into tension membrane structure, skeleton membrane structure, inflatable membrane structure, cable truss membrane structure, tension integral structure and cable dome membrane structure.
The inflatable membrane structure is a relatively closed space structure. Unlike traditional space structure buildings, it blows air inside the structure through the fan to keep a certain pressure difference inside and outside the membrane structure to ensure the stiffness of the membrane structure system and maintain the designed shape.

At the same time, the pressure control system can make the structure maintain a certain internal and external pressure to ensure the stability of the structure.
In 1917, British W.Lanchester invented an inflatable membrane structure as the roof of the right external hospital building, which is a roof system with convenient installation and economic cost, but he himself did not build it.
In 1946, the British Walter Bird built the first modern inflatable membrane structure, Doppler Radome (Doppler Radome), with a diameter of 15m and a height of 18.3m, using glass fiber as a base cloth of chloroprene rubber as the layer of film. Between 1950 and 1970, the camera built a large number of similar domes in the United States, Germany and other places, with a maximum diameter of 60m.
The 1970 EXPO in Osaka, Japan (EXPO ’70) provided an opportunity for the development of membrane structures. Due to the frequent earthquakes in Japan and the low level of soft soil, the pavilion should adopt a light structural system. The US Pavilion, designed by David Geiger, is the first to have a long-span low-profile inflatable membrane structure with a plane of 139m×78m oval.
From 1972 to 1984, designed by David Geiger, Birdair built seven huge inflatable membrane structures in the United States, including the Silver Dome (220m×159m), but most of the membrane structures proved to be difficult to effectively resist the harsh weather conditions.
In 1988, the Toyko Dome was built in Japan. Although the inflatable membrane structure technology has reached a new level, no giant inflatable membrane structure buildings have been built around the world since.
Inflatable membrane structure created a brilliant history of long span architecture before the appearance of cable dome system.
Inflatable membrane structure is a new type of space building, which has incomparable advantages over traditional buildings. Especially for the need for a large area of large space of the factory, it has more advantages than any building, so it can be widely used in the need for large span of work space.
Therefore, it can be applied to large-scale work workshops, warehouses, sports venues, exhibition halls and so on.

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