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本文介绍了厚涂型防火涂料的防火机理和火灾后截面温度场的计算,以及有无防火保护的钢管混凝土试件火灾后承载力试验,分析了防火涂料对钢管混凝土火灾后承载力的影响．研究结果可以为更准确地评估钢管混凝土火灾后的损伤程度及给出合理的加固修复措施提供依据．
This paper introduces the fireproof mechanism of fire-retardant coatings and the calculation of the temperature field after fire, as well as the test of the post-fire load-carrying capacity of CFST specimens with or without fire protection. The influence of fire-retardant coating on the bearing capacity of CFST after fire is analyzed. The results can provide a basis for more accurately assessing the degree of damage of concrete filled steel tube after fire and providing reasonable reinforcement and repair measures.