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A platform for research: civil engineering, architecture and urbanism
Risk acceptance framework for specifying fire safety measures in tunnels
The unique nature of tunnels, their potential for high consequences, and the emergence of new technologies (such as new energy carriers, NEC) implies that a risk-based approach is often required for the fire safety assessment of tunnel structures. The relationship between societal requirements and private considerations is however not always clear. To clarify this, a risk acceptance framework is presented which provides a roadmap for identifying the preferred fire safety design alternative. To support practical implementation, (i) sources of uncertainty to be considered as part of the probabilistic assessment are discussed, notably with a view on the consideration of NEC; and (ii) two simplified state-of-practice case studies are presented. Together, the discussion of uncertainties and the presented case studies highlight the knowledge gap between the theoretical risk acceptance framework and practical implementation. Therefore, a research and development project, FIERCE (Fire Integrated Environment for Risk Comprehension and Evaluation), has been initiated with support of the Flemish government. The targets and conceptualization of FIERCE are presented at the end of the paper.
Risk acceptance framework for specifying fire safety measures in tunnels
The unique nature of tunnels, their potential for high consequences, and the emergence of new technologies (such as new energy carriers, NEC) implies that a risk-based approach is often required for the fire safety assessment of tunnel structures. The relationship between societal requirements and private considerations is however not always clear. To clarify this, a risk acceptance framework is presented which provides a roadmap for identifying the preferred fire safety design alternative. To support practical implementation, (i) sources of uncertainty to be considered as part of the probabilistic assessment are discussed, notably with a view on the consideration of NEC; and (ii) two simplified state-of-practice case studies are presented. Together, the discussion of uncertainties and the presented case studies highlight the knowledge gap between the theoretical risk acceptance framework and practical implementation. Therefore, a research and development project, FIERCE (Fire Integrated Environment for Risk Comprehension and Evaluation), has been initiated with support of the Flemish government. The targets and conceptualization of FIERCE are presented at the end of the paper.
Risk acceptance framework for specifying fire safety measures in tunnels
Van Coile, Ruben (author) / Schepers, Melchior (author) / Pachera, Matteo (author) / Kamaliseresht, Khodadad (author)
2022-01-01
Proceedings of the 13th International Conference on Structural Safety and Reliability (ICOSSAR 2021)
Conference paper
Electronic Resource
English
DDC:
690
A comparison of safety risk acceptance principles for UK tunnels
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