Research Article
Sep 1973

Dynamic Wind Stresses in Hyperbolic Cooling Towers

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Publication: Journal of the Structural Division
Volume 99, Issue 9

Abstract

The paper outlines a general procedure to estimate the wind dynamic stresses in hyperbolic cooling towers on the basis of a statistical dynamic approach. Using wind tunnel measurements of pressure fluctuations and assuming that resonance is negligible, predicted wind stresses agreed with measured stresses on an aeroelastic model. It is shown that wind coupling responses reside essentially in the first, second, and third circumferential harmonic modes and that (138 m) 451 feet between modes is important. The procedure is applied to (138-m) 451-ft tower, fixed or on columns. Results show that static and dynamic stresses are of the same order of magnitude.

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Published In

Journal of the Structural Division
Volume 99Issue 9September 1973
Pages: 1823 - 1835

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Published in print: Sep 1973
Published online: Feb 1, 2021

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Salman H. Abu-Sitta, M.ASCE
Assoc. Prof., Faculty of Engrg. Sci., The Univ. of Western Ontario, London, Ontario, Canada
Mahmoud G. Hashish
Grad. Student, Faculty of Engrg. Sci., The Univ. of Western Ontario, London, Ontario, Canada

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