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首页> 外文会议>International conference on sustainable development of critical infrastructure >Reliability Assessment of RC Structures Subjected to Carbonation by Incorporating Spatial Variations
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Reliability Assessment of RC Structures Subjected to Carbonation by Incorporating Spatial Variations

机译：通过纳入空间变异来进行碳酸化的RC结构的可靠性评估

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When carbonation reaches the depth of the rebar embedded into the concrete, the high alkalinity of the concrete pore solution is neutralised and hydration products are dissolved. As carbonation progresses, the corrosion could extend enough to deteriorate the structural performance. In this paper, a time-dependent structural reliability analysis method taking the carbonation into consideration is proposed. To predict the corrosion process of reinforced concrete (RC) structures, spatial variability of corrosion has to be considered. A computational procedure to integrate the spatial variability of corrosion due to carbonation into life-cycle reliability assessment of existing RC structures is established. An illustrative example of a RC structure subjected to carbonation is presented. The emphasis is placed on investigating the effects of the spatial variation of inspected carbonation depths on the reliability estimates of RC structures.
机译：当碳酸化达到嵌入混凝土中的钢筋的深度时，混凝土孔溶液的高碱度是中和的，并且溶解水合产物。随着碳酸化进展，腐蚀可能足够延伸以恶化结构性能。本文提出了一种考虑碳化的时间依赖性结构可靠性分析方法。为了预测钢筋混凝土（RC）结构的腐蚀过程，必须考虑腐蚀的空间变异性。建立了通过碳酸化渗透到生命周期可靠性评估的计算过程，是对现有RC结构的生命周期可靠性评估。介绍了经受碳化的RC结构的说明性实例。重点是研究检查所检查的碳酸化深度的空间变化对RC结构可靠性估计的影响。

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