Stiffened Sheathings of Orthotropic Cylindrical Shells
Publication: Journal of Structural Engineering
Volume 118, Issue 4
Abstract
Geometric characteristics of orthotropic shells introduce computational difficulties (discretization of the stiffeners, computing time, interaction at the ring and stringer junctions with the sheathing, etc.). Navigation‐dam gates, tidal surge barriers, etc., are hydraulic steel structures composed of orthotropic sheathings, which can now be more easily computed with the development of the LBR‐3 stiffened sheathing software. This method is one of harmonic analysis and is founded on the Fourier series expansions. It is based on the analytical solution of the governing differential equations for orthotropic cylindrical shells. These differential equations result from the DKJ method (Donnell, von Kármán, and Jenkins) and allow taking into account the torsional stiffness, the lateral bending stiffness, and the exact position of each stiffener. New developments that permit the designing of stiffened cylindrical structures with many boundary conditions are presented. After the numerical verifications, an example of a tidal surge barrier design is presented.
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Information & Authors
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Published In
Journal of Structural Engineering
Volume 118 • Issue 4 • April 1992
Pages: 926 - 943
Copyright
Copyright © 1992 ASCE.
History
Published online: Apr 1, 1992
Published in print: Apr 1992
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