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本文在火灾后钢筋与混凝土应力一应变关系试验结果的基础上，通过大量数值计算，给出了火灾后钢筋混凝土构件的截面夸矩一曲率恢复力骨架曲线特征参数的统计公式，为利用杆系模型进行火灾后钢筋混凝土结构的地震反应分析并进行抗震加固奠定了某础。
Based on the experimental results of the stress-strain relationship between steel bars and concrete after fire, a large number of numerical calculations are made to give a statistical formula for the characteristic parameters of the skeleton-curvature restoring force of the reinforced concrete members after fire. The model laid a foundation for seismic response analysis of reinforced concrete structures after fire and seismic reinforcement.