Substitute Wind Concept for Elastic Stability of Cooling Tower Shells

by Udo Wittek, Univ Kaiserslautern, Kaiserslautern, West Germany,
Klaus Grote, Univ Kaiserslautern, Kaiserslautern, West Germany,

Document Type: Proceeding Paper

Part of: Materials and Member Behavior


The influence of the nonaxisymmetric wind distribution on the stability behavior of cooling tower shells is examined. It is demonstrated, considering about 50 cooling tower shells, that the natural wind can be replaced by a substitutional axisymmetric wind. The value of this substitutional wind load is depending on the main geometrical properties and is approximately given as a function of the radius at the base, the radius at the throat, the height of the throat and the height of the cooling tower.

Subject Headings: Cooling towers | Wind engineering | Wind loads | Shell structures | Elastic analysis | Structural design | Load factors

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