Bending of Composite Stiffened Hypar Shell Roofs under Point Load
Publication: Journal of Engineering Mechanics
Volume 134, Issue 6
Abstract
The present paper applies a combination of an eight noded shell element with a three noded beam element, both curved and isoparametric to solve a bending problem of a composite stiffened hypar shell subjected to a concentrated load. Benchmark problems are solved to validate the suitability of the approach and a wide spectrum of stiffened hypar shell problems are solved by varying the lamination and curvature of simply supported and clamped shell surfaces. Different positions of stiffeners, both in plan and section, are considered together with variation of stiffener depth. Both static deflections and force/moment resultants are examined thoroughly. The performances of the different shell options are studied by arranging them rankwise and through a typical relative performance matrix, which will enable a designer to make a rational choice between a number of options.
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Acknowledgments
The first writer gratefully acknowledges the financial assistance of the Council of Scientific and Industrial Research (India) through the Senior Research Fellowship vide Grant No. UNSPECIFIED9/96 (412) 2003-EMR-I.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 134 • Issue 6 • June 2008
Pages: 441 - 454
Copyright
© 2008 ASCE.
History
Received: Dec 17, 2004
Accepted: Oct 29, 2007
Published online: Jun 1, 2008
Published in print: Jun 2008
Notes
Note. Associate Editor: Arif Masud
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