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Analysis of cylindrical granular material silos under seismic excitation

  • Silos generally work as storage structures between supply and demand for various goods, and their structural safety has long been of interest to the civil engineering profession. This is especially true for dynamically loaded silos, e.g., in case of seismic excitation. Particularly thin-walled cylindrical silos are highly vulnerable to seismic induced pressures, which can cause critical buckling phenomena of the silo shell. The analysis of silos can be carried out in two different ways. In the first, the seismic loading is modeled through statically equivalent loads acting on the shell. Alternatively, a time history analysis might be carried out, in which nonlinear phenomena due to the filling as well as the interaction between the shell and the granular material are taken into account. The paper presents a comparison of these approaches. The model used for the nonlinear time history analysis considers the granular material by means of the intergranular strain approach for hypoplasticity theory. The interaction effects between the granular material and the shell is represented by contact elements. Additionally, soil–structure interaction effects are taken into account.

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Metadaten
Author:Christoph ButenwegORCiD, Julia Rosin, Stefan Holler
DOI:https://doi.org/10.3390/buildings7030061
ISSN:2075-5309
Parent Title (English):Buildings
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of Completion:2017
Date of the Publication (Server):2021/01/05
Tag:earthquake engineering; granular silo; hypoplasticity; nonlinear transient analyses
Volume:7
Issue:3
First Page:1
Last Page:12
Link:https://doi.org/10.3390/buildings7030061
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Energietechnik
collections:Verlag / MDPI
Open Access / Gold
Licence (German):License LogoCreative Commons - Namensnennung