Tubular Conical Columns for Offshore Structures

[+] Author and Article Information
S. J. Cox

Department of Computational and Applied Mathematics, Rice University, P.O. Box 1892, Houston, TX 77251

J. Offshore Mech. Arct. Eng 115(4), 219-222 (Nov 01, 1993) (4 pages) doi:10.1115/1.2920115 History: Received September 13, 1993; Online June 12, 2008


We examine submerged nonlinear tubular columns with slenderness ratios between 40 and 160 and ratios of diameter to thickness between 20 and 50. We demonstrate that the column’s Euler buckling load can be increased nearly 30 percent by a volume preserving taper of only a few degrees. We determine the effect of hydrostatic pressure and self-weight on such conical columns and offer some preliminary remarks on the role played by model imperfections.

Copyright © 1993 by The American Society of Mechanical Engineers
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