摘要
通过对国内外相关研究成果的整理和分析,依据混凝土火灾爆裂危险性的影响因素,建立了混凝土结构火灾爆裂危险性分级评价体系。根据爆裂危险度值的大小将混凝土结构的爆裂危险性分为5级。爆裂危险性预测与实测结果的一致性显示了所提混凝土火灾爆裂危险性分级评价体系的有效性,可为混凝土构件和结构减灾防火设计提供参考。
Based on an analysis of domestic and overseas former research results, and considering the factors influ- encing explosive spalling, a hierarchical system for assessing the fire spalling risk of concrete structures was estab- lished. Five levels of spalling risk were defined in this system by the total risk value of the concrete structure. Good agreement between the results of spalling risk prediction and the fire test shows the efficacy of the proposed system in assessing the fire spalling risk of concrete structures, which could provide a reference for the fire resistance design of concrete structures.
出处
《自然灾害学报》
CSCD
北大核心
2012年第1期204-210,共7页
Journal of Natural Disasters
基金
国家自然科学基金项目(50278012)
辽宁省教育厅基金项目(2009A064
L2011215)
关键词
混凝土结构
火灾
爆裂
危险性评估
concrete structures
fire
explosive spalling
risk assessment
