New material fireproof system for bridge steel cable

The invention discloses a novel material fireproof system for a bridge steel cable. A fireproof layer is wound and wrapped on the outer side of an inhaul cable; the sealing layer is bonded and fixed on the outer side of the fireproof layer; the fastening isolation layer is made of a fluororubber material and is tightly wrapped on the outer side of the sealing layer; the protection layer is of a hard sleeve-shaped structure and is fixedly arranged on the outer side of the fastening isolation layer in a sleeving mode. On the basis of the structure of the fireproof layer and the sealing layer, the fastening sealing layer made of fluororubber and the protective layer of a hard sleeve-shaped structure are additionally arranged, through use of new materials, on the basis of improving stability, the fireproof, protective and isolation effects are further improved, and the high-standard bridge fireproof requirement is met. 本发明公开了一种用于桥梁钢索的新材料防火体系，防火层缠绕包裹在拉索外侧；密封层粘结固定在防火层外侧；紧固隔离层为氟橡胶材质，且裹紧在密封层外侧；防护层为硬质套管状结构，且套设固定在紧固隔离层