The fire resistance rating of concrete members coated with different thickness of fire-resistant coating was analyzed by experiment in the fire.Studies showed that the impact of CFRP and steel on the temperature field of the specimens was the same,the fireproof effect of thick-layer fire-resistant coating for steel structure was obvious,the thickness of the fire-resistant coating and the fire performance are not proportional.It identified that the best values of the fire retardant coating thickness is 40 mm.%试验研究分析了涂不同厚度防火涂料的粘贴法加固混凝土试件在火灾下的耐火极限。试验结果表明，碳纤维布和钢板对试件温度场的影响是相同的，厚涂型钢结构防火涂料对混凝土结构的防火作用明显，防火涂料厚度与防火性能并不成正比。试验确定粘贴法加固混凝土构件防火涂层厚度的最佳取值为40 mm。
展开▼
