Seismic Performance of Industrial Pressure Vessels: Parametric Investigations of Simplified Modeling Approaches for Vulnerability Assessment

Karakostas, Christos; Moschonas, Ioannis F.; Lekidis, V.; Papadopoulos, Savvas

doi:10.7712/120115.3520.944

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Research to date on the seismic fragility of oil refinery structures is unevenly distributed among them. While liquid storage tanks (e.g., Bakalis et al 2017;Spritzer and Guzey 2017;Vathi et al 2017;Phan et al 2020;Bakalis and Karamanos 2021;Caprinozzi and Dolšek 2021;Hernandez-Hernandez et al 2021;Yu and Whittaker 2021), pipe-racks (e.g., Bursi et al 2018;Di Sarno and Karagiannakis 2020;Farhan and Bousias 2020;Zhang et al 2021) and pressure vessels (e.g., Patkas and Karamanos 2007;Karakostas et al 2015;Fiore et al 2018) are considered well-studied, flare stacks, chimneys (e.g. Guo and Zhang 2019), piping systems within plants (Bursi et al 2015;Di Sarno and Karagiannakis 2020) and open-frame structures (e.g., Butenweg et al 2021) have received comparatively little attention.…”

Section: Introductionmentioning

confidence: 99%

Seismic fragility assessment of building-type structures in oil refineries

Kazantzi¹,

Karaferis

Melissianos

et al. 2022

Bull Earthquake Eng

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A seismic fragility assessment methodology is presented for equipment-supporting reinforced concrete and steel buildings that are typically encountered in oil refineries. Using a suite of hazard-consistent ground motions and reduced-order models, incremental dynamic analysis is performed to obtain the seismic demand of the structural systems examined.Appropriate drift-and floor acceleration-sensitive failure modes are considered to define the limit state capacities of the supporting structure and the nested non-structural process equipment. Special care is exercised on the demand and capacity representation of structural and non-structural components, offering a transparent roadmap for undertaking analytical fragility assessment for equipment-supporting buildings typical to an oil refinery. The findings and the proposed methodology can be exploited by designers and facility managers for mitigating the risk of failure prior to the occurrence of an earthquake event, for designing the pertinent structures and their non-structural components by means of a risk-aware performance-based methodology, or as feed data in early warning systems.

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Section: Introductionmentioning

confidence: 99%

Seismic fragility assessment of building-type structures in oil refineries

Kazantzi¹,

Karaferis

Melissianos

et al. 2022

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

“…Bursi et al 2018;Di Sarno and Karagiannakis 2021;Farhan and Bousias 2020;Zhang et al 2021), and pressure vessels (e.g. Patkas and Karamanos 2007;Karakostas et al 2015). On the other hand, the seismic fragility of typical high-rise stacks, i.e.…”

Section: Introductionmentioning

confidence: 99%

Seismic fragility assessment of high-rise stacks in oil refineries

Karaferis

Kazantzi²,

Melissianos

et al. 2022

Bull Earthquake Eng

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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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Mechanical modeling, seismic fragility, and correlation issues for groups of spherical pressure vessels

2023

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A roadmap is outlined for determining comprehensive seismic fragility curves for (single or groups of) spherical pressure vessel structures commonly found in oil refineries. The developed modeling techniques aim to strike a balance between accuracy and computational efficiency, with a focus on capturing the most pertinent failure modes relevant to these structural types. First, a set of “partial” fragilities is determined based on each vessel’s fill ratio, as the response varies substantially depending on the amount of liquid content. Considering that a seismic assessment process invariably involves simultaneous consideration of such partial fragilities, a Monte Carlo-based approach is employed for their combination. The results naturally depend on the level of correlation employed, but can be almost perfectly matched by simpler analytical methods in the edge cases of full and zero correlation.

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Seismic Performance of Industrial Pressure Vessels: Parametric Investigations of Simplified Modeling Approaches for Vulnerability Assessment

Abstract: Keywords:Pressure vessels, pushover analysis, vulnerability and fragility assessment, surrogate models. Abstract

Cited by 3 publications

References 2 publications

Seismic fragility assessment of building-type structures in oil refineries

Seismic fragility assessment of building-type structures in oil refineries

Seismic fragility assessment of high-rise stacks in oil refineries

Mechanical modeling, seismic fragility, and correlation issues for groups of spherical pressure vessels

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