Introduction to the structure of

SIGMA inflatable tent

There are three types of inflatable membrane structure: single-layer, double-layer and air rib. The inflatable membrane structure generally needs long-term uninterrupted energy supply. The single-layer inflatable membrane structure in low arch and long-span buildings must be a closed space with a certain indoor and outdoor air pressure difference.

Our inflatable structure is mainly in two forms:

Air supported and Air bag

1. Air supported structure is to use single-layer membrane as roof and external wall directly, and anchor the periphery on ring beam or ground beam. The air pressure in the air bag is 2-7 times of the outdoor air pressure, so it is a high-pressure system. The air supported membrane structure (cable membrane structure) inflates air into the building through the pressure control system, so as to maintain a certain pressure difference between indoor and outdoor, make the covering membrane subject to buoyancy, and produce a certain pre tension stress, so as to ensure the stiffness of the system. The indoor air pressure automatic regulation system is set up to adjust the indoor and outdoor air pressure in time to adapt to the change of external load. Because there is no need for any support in the middle of the span, it is suitable for super long-span buildings, generally for large gymnasiums.

2. Air bag membrane structure is to inflate a single membrane component to keep enough internal pressure. The combination of multiple membrane components can form a certain shape of an overall stress system. This structure has high requirements for the air tightness of the membrane material itself, or needs to inflate the membrane component continuously.