Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves

Risk reduction and management of oil, gas, and petrochemical plants are important in terms of energy supply, financial implications, life loss, and repairs. Probabilistic analysis and reliability methods are effective approaches for calculating the risk and cost to such plants, which are composed of...

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Main Authors: Saeedeh Kouhestani, Bijan Sayyafzadeh, Mahdi Sharifi
Format: Article
Language:fas
Published: University of Qom 2020-08-01
Series:پژوهش‌های زیرساخت‌های عمرانی
Subjects:
Online Access:https://cer.qom.ac.ir/article_1761_4f2c23c66ee78d4bd03e6da07f19e66f.pdf
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author Saeedeh Kouhestani
Bijan Sayyafzadeh
Mahdi Sharifi
author_facet Saeedeh Kouhestani
Bijan Sayyafzadeh
Mahdi Sharifi
author_sort Saeedeh Kouhestani
collection DOAJ
description Risk reduction and management of oil, gas, and petrochemical plants are important in terms of energy supply, financial implications, life loss, and repairs. Probabilistic analysis and reliability methods are effective approaches for calculating the risk and cost to such plants, which are composed of units with different types of equipment and structures that have different responses and consequences. One major piece of equipment in a plant that has been shut down is the flare. Depending on the height, the flares can be self-supported, guy-supported, or derrick-supported. The current study investigated the seismic probability behavior of a derrick-supported flare. An existing flare was investigated using the finite element method and incremental dynamic analysis as a case study. The different limit states of the structures were considered when calculating the fragility curves using the results of incremental dynamic analysis. The results showed that the seismic demand on the main structure of the flare stack in the ordinary seismic intensity range was not significant due to the flexible behavior of the structure.
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spelling doaj.art-7fdc7efe2a0b46238bd97cddfe4d4b6b2024-03-31T19:58:13ZfasUniversity of Qomپژوهش‌های زیرساخت‌های عمرانی2783-140X2020-08-01618910210.22091/cer.2021.6244.12181761Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility CurvesSaeedeh Kouhestani0Bijan Sayyafzadeh1Mahdi Sharifi2Department of Civil Engineering, Faculty of Engineering, University of QomDepartment of Civil Engineering, Faculty of Engineering, University of QomDepartment of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranRisk reduction and management of oil, gas, and petrochemical plants are important in terms of energy supply, financial implications, life loss, and repairs. Probabilistic analysis and reliability methods are effective approaches for calculating the risk and cost to such plants, which are composed of units with different types of equipment and structures that have different responses and consequences. One major piece of equipment in a plant that has been shut down is the flare. Depending on the height, the flares can be self-supported, guy-supported, or derrick-supported. The current study investigated the seismic probability behavior of a derrick-supported flare. An existing flare was investigated using the finite element method and incremental dynamic analysis as a case study. The different limit states of the structures were considered when calculating the fragility curves using the results of incremental dynamic analysis. The results showed that the seismic demand on the main structure of the flare stack in the ordinary seismic intensity range was not significant due to the flexible behavior of the structure.https://cer.qom.ac.ir/article_1761_4f2c23c66ee78d4bd03e6da07f19e66f.pdfincremental dynamic analysisflarefragility curveseismic vulnerabilityprobabilistic assessment
spellingShingle Saeedeh Kouhestani
Bijan Sayyafzadeh
Mahdi Sharifi
Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
پژوهش‌های زیرساخت‌های عمرانی
incremental dynamic analysis
flare
fragility curve
seismic vulnerability
probabilistic assessment
title Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
title_full Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
title_fullStr Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
title_full_unstemmed Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
title_short Seismic Vulnerability Assessment of Derrick-Supported Flare-Stacks Using Fragility Curves
title_sort seismic vulnerability assessment of derrick supported flare stacks using fragility curves
topic incremental dynamic analysis
flare
fragility curve
seismic vulnerability
probabilistic assessment
url https://cer.qom.ac.ir/article_1761_4f2c23c66ee78d4bd03e6da07f19e66f.pdf
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AT bijansayyafzadeh seismicvulnerabilityassessmentofderricksupportedflarestacksusingfragilitycurves
AT mahdisharifi seismicvulnerabilityassessmentofderricksupportedflarestacksusingfragilitycurves