袁迎曙    李  果
    （中国矿业大学  徐州 221008）

[提要]  在恒定压应力状态下，对钢筋混凝土柱进行了钢筋加速锈蚀试验。通过试验研究和有限元模拟分析，对轴压钢筋混凝土柱在锈蚀过程中的力学性能进行了动态分析；提出了压应力状态下锈蚀过程中柱截面应力重分布的特点与发展阶段；并揭示了轴压钢筋混凝土柱的结构性能退化特征。
[关键词]  钢筋混凝土柱  锈蚀钢筋  应力重分布  结构性能  退化特征

An accelerated corrosion test of steel bars in reinforced concrete columns under constant compression was conducted. Dynamic analyses for structural behavior of the reinforced concrete column during corrosion were carried out using test research and finite element method. Features and development periods of the stress redistribution in the process of rusting are discussed for the column in axial compression. Its deterioration characteristics are presented.
Keywords: reinforced concrete column; corroded bar; stress distribution; structural behavior; deterioration characteristics