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DATA DRIVEN PREDICTIVE ANALYTICS FOR BRIDGE ASSET MANAGEMENT

机译:桥梁资产管理数据驱动预测分析

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Data Driven Predictive Analytics for Bridge Asset Management is normally used for suitable repair and or rehabilitation plan of a typical bridge system based on the development of degradation model. Bridges would be showing signs of distress due to aging, improper repair, rehabilitation, or lack of proper maintenance. There is a wide research gap in bridge asset management particularly in the field of proper structural evaluation of bridges. Extending the useful service life of aging bridges is very important for the transportation industry. One of the problems faced by the US transportation industry is the degradation of structural components of highway bridges (normal deterioration and natural disasters like Hurricane Sandy etc.). The main reason behind these problems is the over usage of highway bridges beyond their useful service life in association with improper bridge asset management. The structural evaluation of the bridges is mostly done visually which varies in interpretation based on the judgement of the inspector (structure evaluator). In degradation model analysis, failure can be directly related to a change over time in a measurable structural parameter. This opens up the possibility of measuring degradation over time and using those data to extrapolate when failure will occur. This approach would allow us to fit acceleration models and life distribution models without actually waiting for failures to occur. In this analysis, various structural parameters, which drift monotonically (upwards, or downwards), can be measured over time towards a specified critical value corresponding to their failure stage. The aim is to fit models using degradation data instead of failures. The degradation model will be multidimensional, incorporating infrastructure element type, exposure, and time.
机译:桥梁资产管理的数据驱动预测分析通常用于基于降解模型的发展的典型桥梁系统的适当修复和或康复计划。由于老化,修复,修复或缺乏适当的维护,桥梁将显示出痛苦的迹象。桥梁资产管理中具有广泛的研究差距,特别是在桥梁适当的结构评估领域。延长老化桥梁的使用寿命对运输行业非常重要。美国交通行业面临的问题之一是公路桥梁结构部件的退化(正常恶化和飓风桑迪等自然灾害等)。这些问题背后的主要原因是与不正确的桥梁资产管理相关联的公路桥梁超出其有用的使用寿命。桥梁的结构评估主要是在视觉上进行,这在基于检查员(结构评估员)的判断中的解释中变化。在降解模型分析中,失败可以与可测量的结构参数中随时间的变化直接相关。这会使随着时间的推移测量劣化并在发生故障时使用这些数据来开辟可能性。这种方法允许我们适合加速模型和生命分布模型,而实际上正在等待发生故障。在该分析中,可以随时间朝向对应于其故障阶段的指定临界值来测量各种结构参数。目的是使用劣化数据而不是故障来适合模型。劣化模型将是多维的,包括基础设施元素类型,曝光和时间。

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