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Seismic fragility assessment of high-rise stacks in oil refineries

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Abstract

The seismic fragility is assessed for typical high-rise stacks encountered in oil refineries, namely process towers, chimneys, and flares. Models of varying complexity were developed for the structures of interest, attempting to balance computational complexity and accuracy regarding the structural dynamic and strength properties. The models were utilized along with a set of hazard-consistent ground motions for evaluating the seismic demands through incremental dynamic analysis. Demand/capacity-related uncertainties were explicitly accounted for in the proposed framework. Damage states were defined for each of the examined structure considering characteristic serviceability and ultimate limit states. Τhe proposed resource-efficient roadmap for the analytical seismic fragility assessment of typical high-rise stacks, as well as the findings of the presented research work are available to be exploited in seismic risk assessment studies of oil refineries.

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Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.

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Acknowledgements

The authors would like to thank Ms. E. Vourlakou for preparing the photorealistic images of the buildings.

Funding

The financial support from the European Union’s Horizon 2020 research and innovation programmes “INFRASTRESS-Improving resilience of sensitive industrial plants & infrastructures exposed to cyber-physical threats, by means of an open testbed stress-testing system” under Grant Agreement No. 833088, “HYPERION – Development of a Decision Support System for Improved Resilience & Sustainable Reconstruction of historic areas to cope with Climate Change & Extreme Events based on Novel Sensors and Modelling tools” under Grant Agreement No. 821054 and “HARMONIA – Development of a Support System for Improved Resilience and Sustainable Urban areas to cope with Climate Change and Extreme Events based on GEOSS and Advanced Modelling Tools” under Grant Agreement No. 101003517 is gratefully acknowledged.

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Correspondence to N. D. Karaferis.

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The authors have no relevant financial or non-financial interests to disclose.

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Karaferis, N.D., Kazantzi, A.K., Melissianos, V.E. et al. Seismic fragility assessment of high-rise stacks in oil refineries. Bull Earthquake Eng 20, 6877–6900 (2022). https://doi.org/10.1007/s10518-022-01472-2

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  • DOI: https://doi.org/10.1007/s10518-022-01472-2

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