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Framework for rational decision-making in bridge maintenance

delete2024-06-30
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OA
AI
F
Frida Liljefors *
J
Jochen Köhler
DOI:10.1080/15732479.2024.2371607delete
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摘要

摘要

En 中文
Bridges are deteriorating, and their safety must be continuously assessed. Efficient management of bridges is essentially about making decisions on maintenance activities in line with the decision maker’s preferences. In other words, structural safety should be ensured while optimally allocating resources. In theory, methods are available for solving this complex task; however, they have not yet been implemented by bridge owners. In this study, the implementation into practice is facilitated by presenting a consistent framework for rational decision-making. It is argued that structural assessment is a decision problem that infrastructure owners are obliged to take responsibility for. Bayesian decision theory is presented as the theoretically ideal decision-making framework. The main components of the framework—representations of structural reliability and failure consequences—are discussed in detail, and human safety constraints are integrated. For demonstration purposes, the decision-making framework is applied to two case studies. In addition, it is parameterised by the relative cost of the intervention to failure and the current failure probability to be applicable for any assessment situation. In that way, this study contributes to more efficient maintenance of single bridges and the development of generally applicable structural codes for assessing existing structures.
Keyword:
Bayesian decision-making
bridge maintenance
existing structures
human safety
structural assessment

期刊

Structure and Infrastructure Engineering 封面图
Structure and Infrastructure Engineering
IF:
2.6
论文数:
489
被引数:
5.3K

机构

N
Norwegian University of Science and Technology
学者数:
1.7K
论文数: 927
被引数: 3.2W
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