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Decision support method for multi-criteria selection of bridge rehabilitation strategy

机译：桥梁修复策略多指标选择的决策支持方法

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摘要

Bridge management is the decision-making process for selecting and prioritizing the actions necessary to maintain a bridge within acceptable limits of safety and serviceability. The current decision-making approach for bridge management is based on optimizing the life cycle cost of the structure. This is a single criterion decision-making process which does not include the indirect impact of the maintenance, repair and replacement actions. Sound bridge management decisions should be made through balanced consideration of multiple and conflicting criteria. This requirement motivated the development of a multi-criteria decision support method for bridge deck management. The method is based on a modified analytic hierarchy process (AHP) to evaluate and rank alternative bridge rehabilitation strategies. The modified AHP provides an effective analytical tool to deal with complex decision making and has the following features: (1) multi-criteria decision-making process; (2) accounts for the uncertainty associated with the pairwise comparison values; and (3) provides a sensitive evaluation of consistency in judgements. The proposed decision support method is a rational decision-making technique for bridge management. The method practicality and validity is demonstrated using a real case study from the industry.
机译：桥梁管理是一种决策过程，用于选择和确定将桥梁维护在可接受的安全性和可维修性范围内所需的优先级。当前桥梁管理的决策方法基于优化结构的生命周期成本。这是一个单一标准的决策过程，不包括维护，维修和更换措施的间接影响。合理的桥梁管理决策应通过平衡考虑多个和相互冲突的标准来做出。这项要求推动了桥面板管理的多标准决策支持方法的发展。该方法基于改进的层次分析法（AHP）来评估和分级替代桥梁修复策略。改进后的层次分析法为处理复杂的决策提供了有效的分析工具，具有以下特点：（1）多准则决策过程； （2）考虑与成对比较值相关的不确定性； （3）对判断的一致性提供敏感的评估。所提出的决策支持方法是桥梁管理的一种合理的决策技术。该方法的实用性和有效性通过业界的案例研究得到了证明。

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