Collapse prevention device for air-supported structure

The invention relates to a collapse prevention device for an air-supported structure. The collapse prevention device comprises at least two support elements and flexible connecting elements, wherein the support elements are arranged on the ground along the inner wall of the air-supported structure, a support space is formed between every two support elements, installing holes are formed in the support elements, and the flexible connecting elements are arranged in the installing holes in a penetrating way and form a transverse support part between the support elements. According to the invention, a plurality of support elements are arranged on the ground along the inner wall of the air-supported structure, and the transverse support part is formed by the flexible connecting elements between the support elements. Therefore, when the air-supported structure collapses, the air-supported arch top with the collapsed top part can be supported, and in addition, a personnel evacuation passage can be formed for ensuring the safety of personnel in the air-supported structure.