现浇混凝土框架结构火灾后加固设计探讨

Strengthening Design of Cast-in-place Concrete Frame Structure Damaged by Fire

现代建筑中钢筋混凝土的使用越来越广泛,伴随该类建筑物火灾的时有发生,混凝土结构遭受火灾后的损伤机理以及评估和加固方法正受到越来越多的设计人员和研究人员的关注,并开展了相应的研究。以一个实际现浇混凝土框架结构局部遭受火灾为例,从火灾后的检测、受损鉴定和加固设计方法几个方面进行了讨论,在此基础上,对加固修复方法提出了一些新的建议,对今后类似结构有一定的参考价值。

More and more extensive use of reinforced concrete in modern architecture, along building fires have occurred, the designers and researchers concerned about and study the damage mechanism of concrete structures subjected to fire, as well as assessment and strengthening methods. The paper investigated the strengthening design of a cast-in-place concrete frame structure which had been suffered fire. Fire detection, damage identification and strengthening design method are described. Some recommendations of repaired method were proposed and maybe useful to the similar structural design.