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3D buckling assessment of cylindrical steel silos of uniform thickness under seismic action

Moazezi Mehretehran, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.tws.2018.07.040
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. This paper investigates the dynamic buckling behavior of steel silos subjected to horizontal base excitations. The elastic-plastic buckling resistance of three silos with different aspect ratios is estimated using Incremental Dynamic Analyses (IDA). Accordingly, the critical base shear, base moment and the peak ground acceleration (PGA) at the buckling instant are calculated. Moreover, the additional normal pressures induced from bulk solids on silo walls are evaluated and compared with those of Eurocode 8. The results obtained suggest that slender silos are more vulnerable to buckling failure, while squatter silos represent a considerably higher resistance under same seismic conditions. © 2018 Elsevier Ltd
  6. Keywords:
  7. Critical base shear ; Dynamic pressure ; Elastic-plastic buckling resistance ; Steel silo ; Aspect ratio ; Chemical industry ; Seismology ; Steel structures ; Base shear ; Buckling failure ; Dynamic buckling ; Dynamic pressures ; Elastic-Plastic ; Incremental dynamic analysis ; Peak ground acceleration ; Seismic condition ; Elastoplasticity
  8. Source: Thin-Walled Structures ; Volume 131 , 2018 , Pages 654-667 ; 02638231 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0263823118302659