耐火耐候建筑用钢与Q235钢耐火性能的对比研究  

Comparison Research on Fire Endurance between Fire-Resistant and Weathering Construction Steel and Q235 Steel

作　　者：刘继雄[1] 陈晓[1] 董汉雄[1] 邓照军[1] 熊家锦[2] 师华[2] 郑卫东[2] 肖利鹏[2] 

机构地区：[1]武钢技术中心 [2]北京航空材料研究院,北京100095

出　　处：《物理测试》2005年第2期6-11,共6页Physics Examination and Testing

摘　　要：在实验室条件下,对武钢研制生产的高性能耐火耐候建筑用钢WGJ510C2和普通建筑结构用钢 Q235 进行了中型炉耐火试验的对比分析,结果表明:两种钢在不同涂料以及同一涂料不同厚度下,其耐火极限均有明显的差异。在裸露条件下,WGJ510C2的耐火极限明显优于 Q235;同一涂料,在一定厚度范围内,随着防火涂料厚度的增加,耐火钢的优势也增大;对于不同的防火涂料,如使用隔热性能好的涂料,则耐火钢的优势更大,即良好的防火涂料的隔热效果更能充分发挥耐火钢的优势。H profiled bar fire-resistant capability between the fire-resistant and weathering construction steel newly developed in Wuhan Steel and conventional construction steel Q235 was compared . The result shows that the fire endurance of the two steels is obviously varied with different fire protection coats or in different thickness with common fire protection coat. The fire endurance of WGJ510C2 in bareness is much better than that of Q235 and the advantage of WGJ510C2 is of more notability with the increase of thickness in the thickness range of the same fire coat. The better fire-resistant capability of WGJ510C2 can be realized with better heat insulated coat.

关 键 词：建筑用钢 Q235钢 对比研究 耐火性能 耐候 防火涂料 耐火极限 实验室条件 耐火钢 对比分析 耐火试验 建筑结构 研制生产 隔热性能 隔热效果 厚度 优势 

分 类 号：TU511[建筑科学—建筑技术科学]