According to the air- supported membrane forming principle and fire risk，taking an air-supported membrane building as an example, in view of the technical difficulties in the practical application of PVC air-supported membrane structure, the structural response analysis under fire condition was carried out to calculate the membrane surface stress and maximum displacement under different scenarios. Based on the membrane combustion experiment, the most unfavorable fire scenario is designed. Calculate the maximum temperature near the membrane structure, put forward the fire protection design scheme and verify the feasibility of the scheme.

air- supported membrane structure, PVC membrane material, fire protection design, numerical simulation