How does an air dome stadium work?

Generally speaking, an air dome gymnasium is a closed indoor gymnasium built with "air", using membrane materials as the shell, and generating air pressure differences through inflation to support it. Although the air dome stadium looks like a simple "big bread" from the outside, it actually has a secret inside. It relies on various systems to maintain normal operation.

1. Membrane material system: The air dome stadium uses flexible high-strength materials, such as PVDF membrane material with upgraded PVC membrane coating, as the main part of the air dome. The membrane material is pre-processed in the factory and then brought to the site for installation. 

2. Anchorage system: The anchorage system consists of reinforced concrete ring beams, bolts and angles. The bolts are buried inside the ring beam, with only a part exposed. During installation, the membrane material is placed first, and then the angle steel is placed to tightly compress the membrane material. Finally, they are tightly fixed together through nuts, thus forming a closed space. The anchoring system is the cornerstone of the stability of the air dome pavilion and can withstand up to 16 level typhoons.

3. Steel cable system: The steel cable system is the external protection device of the air dome building. The air membrane wraps the entire outer membrane structure through a crisscross cross steel cable network, so that the load borne by the outer membrane is effectively transferred to the steel cable system, and An anchoring system distributed evenly to the footings. The steel cable system can prevent the air dome building from displacement in strong winds, reduce the stress on the membrane material, increase the structural safety performance, and extend the service life.

4. Inflatable pressurization system: Air is injected into the air dome through a fan to increase the internal air pressure, causing the air dome to expand and maintain the energized state. The stability of the air dome gymnasium is closely related to the internal air pressure. Properly adjusting the internal air pressure can resist wind and other external forces.

5.  Mechanical and electrical system: The mechanical and electrical supporting system of the air dome integrates central control, pressure compensation, fresh air, temperature control and emergency systems. Fans, fresh air, air conditioners, lights, etc. that automatically control the air dome are in normal operation. All mechanical and electrical equipment are integrated and designed to enable remote control.

6. Intelligent monitoring system: The intelligent monitoring system includes remote monitoring and PLC intelligent control system, which can automatically detect, remotely monitor and comprehensively manage the operating status and safety status of various electromechanical equipment in the venue to ensure the normal operation of the air dome pavilion.

7.  Passage door system: The air dome uses professional airtight doors as entry and exit passages. Revolving doors, emergency doors (fire entrances and exits), double doors and air-locked passages can be set up according to needs to meet the entry and exit of people and vehicles. All entrances and exits adopt modular design and strictly follow the air dome construction regulations, making them safe and beautiful.

8. Lighting system: Adopt advanced floodlighting, effectively utilizing the high reflectivity of the membrane to provide uniform, non-dazzling lighting inside the building. Usually there are two forms of column lighting or chandelier lighting.

9. Temperature control and sound control system: Glass fiber insulation cotton is used to fill the space between the outer membrane and the inner membrane, which together form the thermal insulation system of the air dome pavilion, which can greatly reduce the energy consumption of heating and cooling air conditioners. The still air between the double-layer membranes provides a spatial isolation layer, which can effectively block the propagation of sound waves and improve the sound insulation effect inside the air dome building.

The air dome gymnasium is a prefabricated building that achieves a high-end and comfortable sports environment with constant temperature and humidity through integrated intelligent control of air pressure, temperature, air quality and other indicators. This design makes the air film gymnasium fast to build, cost-effective, removable and reusable, and is widely used in the construction of basketball halls, badminton halls, swimming pools, football halls and other sports venues.