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Earthquakes and Structures Volume 14, Number 2, February 2018 , pages 95-102 DOI: https://doi.org/10.12989/eas.2018.14.2.095 |
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Seismic behavioral fragility curves of concrete cylindrical water tanks for sloshing, cracking, and wall bending |
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Mohammad Yazdabad, Farhad Behnamfar and Abdolreza K. Samani
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| Abstract | ||
| Seismic fragility curves of concrete cylindrical tanks are determined using the finite element method. Vulnerabilities including sloshing of contents, tensile cracking and compression failure of the tank wall due to bending are accounted for. Effects of wall flexibility, fixity at the base, and height-diameter ratio on the response are investigated. Tall, medium and squat tanks are considered. The dynamic analysis is implemented using the horizontal components of consistent earthquakes. The study shows that generally taller tanks are more vulnerable to all of the failure modes considered. Among the modes of failure, the bending capacity of wall was shown to be the critical design parameter. | ||
| Key Words | ||
| earthquake; concrete cylindrical tank; fragility curve; finite element method; vulnerability | ||
| Address | ||
| Mohammad Yazdabad, Farhad Behnamfar and Abdolreza K. Samani: Department of Civil Engineering, Isfahan University of Technology, Esfahan 8415683111, Iran | ||