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Stability of column-supported steel cylinders with engaged columns

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Abstract
Steel silos are often supported on a small number of columns to facilitate emptying operations. The connection between these columns and an elevated cylindrical metal silo shell is a long-standing difficult problem in shell analysis. The presence of local supports beneath a cylinder leads to stress concentrations in the cylindrical wall just above the supports, which can cause buckling or plastic collapse and consequently failure of the entire structure. Engaged columns produce a gentler introduction of the support forces into the cylindrical shell and cause a smoother stress distribution above the column termination. Engaged columns are therefore a very practical solution for local supports. In practice, smaller silo structures are often supported on engaged columns attached to the side of the shell, but very few investigations of the structural behaviour or the strength of such an arrangement have ever been made. In this paper, the structural behaviour of a cylinder supported on engaged columns is investigated, including the effects of geometric imperfections and geometric nonlinearity. The study is conducted using the requirements for computational evaluations set out in EN 1993-1-6 (2007) and using the finite element package ABAQUS. The columns are assumed to be flexurally and axially rigid to provide a clear scientific study of the failure behaviour of the cylinder under these conditions
Keywords
capacity curve., local supports, cylinder, Eurocode, instability, shell structure

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MLA
Doerich, Cornelia, et al. “Stability of Column-Supported Steel Cylinders with Engaged Columns.” International Association for Shell and Spatial Structures (IASS) Symposium, Proceedings, edited by Alberto Domingo and Carlos Lázaro, Universidad Politécnica de Valencia, 2009, pp. 2535–46.
APA
Doerich, C., Vanlaere, W., Lagae, G., & Rotter, J. M. (2009). Stability of column-supported steel cylinders with engaged columns. In A. Domingo & C. Lázaro (Eds.), International Association for Shell and Spatial Structures (IASS) symposium, Proceedings (pp. 2535–2546). Valencia, Spain: Universidad Politécnica de Valencia.
Chicago author-date
Doerich, Cornelia, Wesley Vanlaere, Guy Lagae, and J Michael Rotter. 2009. “Stability of Column-Supported Steel Cylinders with Engaged Columns.” In International Association for Shell and Spatial Structures (IASS) Symposium, Proceedings, edited by Alberto Domingo and Carlos Lázaro, 2535–46. Valencia, Spain: Universidad Politécnica de Valencia.
Chicago author-date (all authors)
Doerich, Cornelia, Wesley Vanlaere, Guy Lagae, and J Michael Rotter. 2009. “Stability of Column-Supported Steel Cylinders with Engaged Columns.” In International Association for Shell and Spatial Structures (IASS) Symposium, Proceedings, ed by. Alberto Domingo and Carlos Lázaro, 2535–2546. Valencia, Spain: Universidad Politécnica de Valencia.
Vancouver
1.
Doerich C, Vanlaere W, Lagae G, Rotter JM. Stability of column-supported steel cylinders with engaged columns. In: Domingo A, Lázaro C, editors. International Association for Shell and Spatial Structures (IASS) symposium, Proceedings. Valencia, Spain: Universidad Politécnica de Valencia; 2009. p. 2535–46.
IEEE
[1]
C. Doerich, W. Vanlaere, G. Lagae, and J. M. Rotter, “Stability of column-supported steel cylinders with engaged columns,” in International Association for Shell and Spatial Structures (IASS) symposium, Proceedings, Valencia, Spain, 2009, pp. 2535–2546.
@inproceedings{763181,
  abstract     = {{Steel silos are often supported on a small number of columns to facilitate emptying operations. The connection between these columns and an elevated cylindrical metal silo shell is a long-standing difficult problem in shell analysis. The presence of local supports beneath a cylinder leads to stress concentrations in the cylindrical wall just above the supports, which can cause buckling or plastic collapse and consequently failure of the entire structure. Engaged columns produce a gentler introduction of the support forces into the cylindrical shell and cause a smoother stress distribution above the column termination. Engaged columns are therefore a very practical solution for local supports. In practice, smaller silo structures are often supported on engaged columns attached to the side of the shell, but very few investigations of the structural behaviour or the strength of such an arrangement have ever been made. In this paper, the structural behaviour of a cylinder supported on engaged columns is investigated, including the effects of geometric imperfections and geometric nonlinearity. The study is conducted using the requirements for computational evaluations set out in EN 1993-1-6 (2007) and using the finite element package ABAQUS. The columns are assumed to be flexurally and axially rigid to provide a clear scientific study of the failure behaviour of the cylinder under these conditions}},
  author       = {{Doerich, Cornelia and Vanlaere, Wesley and Lagae, Guy and Rotter, J Michael}},
  booktitle    = {{International Association for Shell and Spatial Structures (IASS) symposium, Proceedings}},
  editor       = {{Domingo, Alberto and Lázaro, Carlos}},
  isbn         = {{978-84-8363-461-5}},
  keywords     = {{capacity curve.,local supports,cylinder,Eurocode,instability,shell structure}},
  language     = {{eng}},
  location     = {{Valencia, Spain}},
  pages        = {{2535--2546}},
  publisher    = {{Universidad Politécnica de Valencia}},
  title        = {{Stability of column-supported steel cylinders with engaged columns}},
  year         = {{2009}},
}