Modified Janssen Theory for Flexible Circular Bins
Publication: Journal of Structural Engineering
Volume 122, Issue 4
Abstract
The classic Janssen theory takes no consideration of the interaction between the stored material pressure and the wall deformation, and thus may give poor prediction of pressures in flexible bins. Based on the following two assumptions: (1) The vertical pressure in the stored material is uniformly distributed at the same depth; and (2) the stresses in bin walls can be modelled by the membrane theory, a modified Janssen theory has been developed, which can not only take account of the wall flexibility, but also preserve the simplicity of the original theory. It is shown that the wall flexibility can be represented by a nondimensional parameter α=E s R/E w t. In addition, the lateral pressure ratio, κ, may be computed based on Poisson's ratio of stored material, νs. It is also illustrated that the modified Janssen formula could give a very close estimation with the finite-element method for different levels of α. Therefore, the present theory may at least provide a reference for the more rational determination of some critical parameters which affect the wall pressure in future designs of flexible wall bins.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Abdel-Sayed, G., Monasa, F., and Siddall, W.(1985). “Cold-formed steel farm structures. part I: grain bins.”J. Struct. Engrg., ASCE, 111(10), 2065–2089.
2.
Anderson, P.(1966). “Temperature stresses in steel grain storage tanks.”Civ. Engrg., ASCE, 36(1), 74.
3.
Jenike, A. W., Johanson, J. R., and Carson, J. W.(1973). “Bin loads—part 3: mass flow bins.”J. Engrg. Ind., ASME, 95(1), 6–12.
4.
Ooi, J. Y., and Rotter, J. M.(1990). “Wall pressures in squat steel silos from simple finite element analysis.”Comp. and Struct., 37(4), 361–374.
5.
Pieper, K., and Wenzel, F. (1963). Pressure conditions in silos . W. Ernst and John, Berlin, Germany.
6.
Reimbert, M. L., and Reimbert, A. M. (1976). Silos: theory and practice . Trans Tech Publications, Clausthal, Germany.
Information & Authors
Information
Published In
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Apr 1, 1996
Published in print: Apr 1996
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.