以钢筋混凝土梁的盐雾腐蚀试验为基础,研究了受氯离子腐蚀钢筋混凝土梁的延性特性,并深入分析了其内在原因。在已有截面曲率延性系数公式的基础上,结合试验条件,采用参数修正的方法建立了受腐蚀钢筋混凝土梁截面曲率延性系数计算模型。模型计算结果与试验结果比较,证明了该模型能较好地反映受腐蚀构件延性的变化规律,可为受腐蚀钢筋混凝土结构的耐久性评估提供理论依据。
Based on the salt spray test of reinforced concrete beams,the ductility of reinforced beams of the corrosion condition of chloride ions was analyzed.With the parameter amendment method and combining the experimental conditions,the computation model of the section curvature ductility factor of reinforced concrete beams under corrosion condition was worked out on the basis of existing section curvature ductility factor formula.The comparison between the calculation results from the model and the experiment results showed that this new model might reflect the rules of ductility changes of corroded parts and thus could provide theoretical bases for evaluating the firmness of been corroded reinforced concrete beams.
参考文献
| [1] | 阎西康 .盐腐蚀钢筋混凝土构件力学性能试验研究[D].天津大学,2005. |
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