A framework for the asset integrity management of large deteriorating concrete structures
A framework for the asset integrity management of large deteriorating concrete structures
复制标题
大型老化混凝土结构资产完整性管理框架
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
M. Faber
中科院分区：
文献类型：
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作者：
D. Štraub;V. Malioka;M. Faber
许多混凝土结构可以看作是工程系统的很大一部分。对于这些，实际的退化模型和检查和维修活动的规划需要明确考虑结构各个组成部分之间的相互依赖关系。工程师和决策者越来越认识到基础设施老化的重要性，但迄今为止，涉及这一主题的研究项目相对较少。本文概述了大型工程系统中与检查、监测和维修活动计划有关的决策问题。随后，通过考虑混凝土结构中钢筋的氯化物引起的腐蚀，提出了一个用于表示退化的空间和时间变化的模型框架。该框架在计算上效率很高，有助于在所有时间点对整个系统的恶化风险进行一致的定量建模。最后，演示了如何将框架应用于大型混凝土结构的检查和维护活动的优化规划。
Many concrete structures can be considered as large parts of engineering systems. For these, realistic modelling of deterioration and the planning of inspection and maintenance activities requires explicit consideration of the interdependencies among the individual elements of the structure. Ageing of the infrastructure has become increasingly recognized by engineers and decision makers as being important, yet relatively few research projects have addressed this topic to date. The present paper provides an overview of the decision problems related to the planning of inspection, monitoring and maintenance activities in large engineering systems. This is followed by the presentation of a model framework for the representation of spatial and temporal variability of deterioration, illustrated by consideration of chloride-induced corrosion of the reinforcement in concrete structures. The framework is computationally highly efficient and facilitates the consistent, quantitative modelling of the risks from deterioration for the entire system at all points in time. Finally, it is demonstrated how the framework can be applied to optimize the planning of inspection and maintenance activities for large concrete structures.