摘要
在合理确定火灾作用下钢管配筋混凝土柱的截面温度分布及高温下钢材和混凝土应力-应变关系模型的基础上,提出了钢管配筋混凝土柱耐火极限的理论计算方法.理论计算结果与以往国内外试验结果进行对比,两者吻合较好.本方法可供有关工程实践和规程制订参考.
Based on the temperature distribution of CFST and the stress- strain relations of steel, bars and core concrete of bar- reinforced concrete filled steel tubes, theoretical model for the analysis of fire resistance of bar - reinforced concrete filled steel tubes with circular or square has been put forward in the paper. The model has been verified by experimental results and good agreement has been reached. The method presented in this paper may be referenced for the practical design and code writing.
出处
《大连民族学院学报》
CAS
2006年第3期76-78,共3页
Journal of Dalian Nationalities University
关键词
钢管混凝土
配筋
柱
耐火极限
concrete filled steel tubes
bar- reinforced
columns
fire resistance