钢筋混凝土结构抗火研究进展与趋势

Development and Trend of the Research on Fire-Resistance of Reinforced Concrete Structures

火灾高温对钢筋混凝土结构材性有显著影响,极易造成结构损伤、破坏甚至倒塌。在大量阅读国内外文献的基础上,从建筑火灾发展过程研究、钢筋混凝土结构在火灾中的行为研究、钢筋混凝土结构抗火设计方法的研究、火灾后钢筋混凝土结构的损伤评估和加固方法的研究等4个方面对钢筋混凝土结构抗火研究进行了论述;总结了目前国内外钢筋混凝土结构抗火研究的主要进展及成果;指出了结构抗火研究尚存在的一些问题;最后,对结构抗火研究趋势进行了展望。

High temperature caused by fire is of great impact on the properties of reinforced concrete structural material. It may damage or even collapse structures. Based on an extensive research on four aspects, the process of building fire, the behavior of structures under fire, the fire-resistant design method of structures and various methods available for inspections and rehabilitation of structures after fire, a summary of research situation concerning fire resistance of reinforced concrete structures is presented, and the current problems is pointed out. Finally, a prospect on fire-resistance of reinforced concrete structures is given.