Vol. 3, No. 2, pp. 583-593(2007)
EXPERIMENTAL STUDY OF VRATTAYATA SHAPE STEEL SILO MODELS
N.V. Deshpande 1,* and L.M. Gupta 2
1Assistant Professor, Department of Civil Engineering,
K.I.T.S., Ramtek - 441106 (M.S.), INDIA
*(corresponding author: E-mail : This email address is being protected from spambots. You need JavaScript enabled to view it.)
2Professor, Department of Applied Mechanics, VNIT, Nagpur (M.S.), INDIA
E-mail : This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
Received: 26 May 2006; Revised: 27 October 2006; Accepted: 7 November 2006
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ABSTRACT
Silos are the tall containers used to store bulk solids. The circular and rectangular shapes of silo containers are common in use. The vrattayata shape for silo containers resembles like an elongated circle. It is formed by connecting two semicircular walls of same radius with straight walls. The length of straight walls is kept as less as possible to minimize the effect of bending stresses. The behaviour of vertical walls of three such vrattayata silo models and that of one circular silo model are experimentally investigated. The volume enclosed within vertical walls of all silo models is kept unchanged to have the same capacity. The inferred static horizontal pressures from measured strains are compared with predictions by Reimbert’s theory and by the method recommended in Euro Code 1 Part 4. The results obtained are discussed and conclusions are drawn.
KEYWORDS
Silo; circular; vrattayata; reimbert’s theory; stress; strain
REFERENCES
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[3] Blight, G.E., “Pressures Exerted by Materials Stored in Silos : Part I, Coarse Materials”, Journal of Geotechnique, Vol. 36, No. 1, 1986, pp. 33–46.
[4] Blight, G.E., “Pressures Exerted by Materials Stored in Silos : Part II, Fine Powders”, Journal of Geotechnique, Vol. 36, No. 1, 1986, pp. 47 – 56.
[5] Eurocode 1 : DD ENV 1991 – 4 : 1996, “Basis of Design and Actions on Structures”, Part 4. Actions in Silos and Tanks, British Standards Institutions.
[6] Reimbert, M.L. and Reimbert, A.M., “Silos Theory and Practice”, Trans Tech Publications, 1976, Vol. 1, No. 3.
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