Abstract
The fire safety issue has been a potential hazard in the rapid development of air-supported membrane structures. Therefore, to obtain the fire response of the air-supported membrane structure, the full-scale fire test of the air-supported membrane structure was designed and carried out, and the fire damage mode was discussed. The fire damage characteristics of the air-supported membrane structure are concluded by analyzing the firepower, air temperature, internal air pressure, and structural deformation. The test results show that the fire’s synergistic effect of high temperature and high air pressure makes welded seams damaged earlier than the membrane. Moreover, damaged parts and opening doors of the structure lead to air leakage. When the air leakage exceeds the air intake, the internal air pressure will drop rapidly, causing the structure to collapse. The collapse at the emergency exit is faster than the structural roof, significantly reducing the available time for safe evacuation.
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