Research Article
Sep 1981
Collapse by Ponding of Air-Supported Spherical Caps
Publication: Journal of the Structural Division
Volume 107, Issue 9
Abstract
A theory is presented to predict the critical central weight which, in the presence a ponding medium, will lead to collapse of an inextensible air supported spherical membrane. Results are developed for a range of radii, pressures and ponding medium densities. Also explored is the manner in which these results will be effected by meridional action only, such as would be caused by a system of cables converging at the apex. A description is given of a series of tests carried out on two laboratory models to confirm the theoretical results. The experimental results indicate that the theory may lead to under design and that this instability is particularly sensitive to surface irregularities near the apex.
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Published In
Journal of the Structural Division
Volume 107 • Issue 9 • September 1981
Pages: 1731 - 1742
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Sep 1981
Published online: Feb 1, 2021
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Authors
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David J. Malcolm, AM.ASCE
Sr. Engr., DAF Indal Ltd., 3570 Hawks tone Road, Mississauga, Ontario, L5C 2V8
Peter G. Glockner, M.ASCE
Prof. and Head, Dept. of Mechanical Engrg., The Univ. of Calgary, Calgary, Alberta, T2N IN4
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.