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3D wind buckling analysis of long steel corrugated silos with vertical stiffeners

Maleki, S ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.engfailanal.2018.03.031
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. Thin-walled cylindrical steel silos are susceptible to instability under wind pressure when they are empty or only partially filled. This paper investigates numerically the wind buckling behavior of a real steel corrugated silo with 8.02 m diameter and 17.62 m height, strengthened by open-section vertical stiffeners. Accordingly, comprehensive 3D finite element models were used and detailed linear and non-linear buckling analyses were conducted. The effects of sinusoidal corrugated sheet profile dimensions on this issue were specially explored. Wind load vertical and circumferential distributions were adopted from Eurocode. Two proposed circumferential pressure distributions for an isolated silo and a silo in a group were taken into consideration. To investigate the material efficiency of corrugated steel silos, a comparison between a full-scale corrugated silo and an equivalent flat sheets one was performed. Additionally, imperfection sensitivity analyses for both structures were carried out. © 2018 Elsevier Ltd
  6. Keywords:
  7. Imperfection sensitivity analysis ; Isolated silos ; Silos in a group ; Steel corrugated silo ; Wind buckling resistance ; Finite element method ; Sensitivity analysis ; Steel structures ; Structural dynamics ; Thin walled structures ; Wind effects ; 3D finite element model ; Buckling analysis ; Buckling behaviors ; Buckling resistance ; Corrugated sheets ; Imperfection sensitivity ; Material efficiency ; Vertical stiffeners ; Buckling
  8. Source: Engineering Failure Analysis ; Volume 90 , 2018 , Pages 156-167 ; 13506307 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1350630717311536