拉应力状态下混凝土构件的角部二维碳化研究

Two-dimensional angle carbide research of concrete under tensile stress states

在前人多维碳化测试试验的基础上,通过分析混凝土碳化规律,得出混凝土边角部位的二维碳化区存在交互作用且角部区域碳化深度远大于其他部位的结论。并对传统的《混凝土结构耐久性评定标准》中给定的碳化深度公式进行修正。建立了处于应力状态下的混凝土一、二维碳化深度计算公式。通过分析结果与规范值的对比论证,发现笔者建议的多维碳化深度公式计算结果与试验实测值更加吻合。而且具有计算简便,实用性强的特点。可为计算实际混凝土构件多维碳化深度提供一定的参考。

On the basis of predecessors＇ multidimensional carbonization test experiment, through the analysis of concrete carbonation regularity, it is concluded that the concrete edge parts of the two-dimensional carbonization zone exists interaction and carbonation depth comer area than other parts of the conclusion. And the durability of concrete structures of traditional evaluation standard given in carbonation depth formula for correction. Set up under the stress state of concrete, two-dimensional carbonation depth calculation formula. Through this article analysis results and the specification value of contrast, found this article suggests the multi-dimensional carbonation depth formula calculation results with the experimental values more consistent. And with the features of easy calculation, the characteristics of strong practicability. To calculate the actual concrete member multidimensional carbonation depth to provide certain reference.