【提要】 设计了84个试件在高温下钢筋与混凝土间的粘结力试验，回归分析得到钢筋与混凝土间的粘结力降低系数与温度的关系，分析了火灾后混凝土结构构件的抗力，提出了火灾后混凝土构件的抗力计算模型，在此基础上运用JC法对火灾后的混凝土构件的可靠性进行了分析，并进行了工程实例分析。
【关键词】 火灾 混凝土构件 可靠性分析 抗力分析
Reliability Analysis of RC Component After Fire/Xu Zejing1,2， Song Yupu1 Xu Youlin3(1 The State Key Laboratory of Coast and Offshore Engineering，Dalian University of Technology, Dalian 410000, China; 2 Henan Provincial Academy of Building Research, Zhengzhou 450000, China; 3 China Academy of Building Research, Beijing 100013, China)Abstract:The tests on the bond capability between steel bar and concrete of eightyfour RC components under high temperatures are carried out. The relationship of bond capability and the temperature is regressed based on the test results. The resistance and the reliability of RC component after fire are analyzed by JC method. The calculation model of resistance and reliability analysis of RC component after fire is advised, and it is  used in some projects.
Keywords:fire; RC component; reliability analysis; resistance analysis
1) 大连理工大学海岸及近海工程国家重点实验室,410000；  2)河南省建筑科学研究院,
郑州，450000；  3) 中国建筑科学研究院,北京,100013。