Probabilistic assessment of material failure in anchored above ground storage tanks during flood events

Mia, Md Manik; Kameshwar, Sabarethinam

doi:10.1016/j.engstruct.2023.117244

Cited by 3 publications

(2 citation statements)

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“…Mia and Kameshwar [32] studied the bottom plate failure in unanchored and anchored tanks and developed their fragility functions. Material failure in bottom plates and shells in tanks exposed to static flood waters was studied by Mia and Kameshwar [33], which revealed that anchoring tanks can lead to bottom-plate failure before shell buckling.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, for individual ASTs, anchoring has been suggested as a structural mitigation measure. However, the effectiveness of anchoring ASTs as a mitigation measure for individual tanks in light of new fragility models, such as bottom-plate failure fragility models [32,33], has not been assessed for a regional portfolio of ASTs. Considering these gaps, the objective of this research was to assess the effectiveness of regional storm surge reduction strategies and tank-level structural mitigation measures in reducing the failure probability of ASTs and understand the suitability of different fragility models for regional application.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the Effectiveness of Regional Storm Surge Reduction Strategies and Tank Level Structural Mitigation Measures for Aboveground Storage Tanks

Ghimire,

Kameshwar

2024

JMSE

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The effectiveness of regional storm surge reduction strategies and tank-level structural mitigation measures in reducing the failure probability of aboveground storage tanks (ASTs) were studied. Given past failures during flood and hurricane events, several studies have developed fragility models for ASTs. However, the suitability of these fragility models for different hurricane hazard scenarios is unknown. Furthermore, to combat climate change and sea level rise, several regional storm surge reduction strategies are being proposed. However, the effectiveness of these strategies in improving the safety of ASTs is also unknown. So, herein, a framework was proposed that facilitates assessing the suitability of fragility models and the quantification of AST failures and their consequences while propagating uncertainties using Monte Carlo simulations. The application of the proposed framework to Cameron, Louisiana, provided several key insights: (1) fragility models that do not model wave loads and dislocation failure are not suitable for the region; (2) a regional risk mitigation strategy was insufficient for lowering future spill volume, repair, and cleanup costs; and (3) considering bottom-plate failure of anchored tanks—a structural risk mitigation measure—would lead to a 47–72% reduction in the consequences of tank failure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%