Bending and Membrane Equilibrium in Cooling Towers

by E. L. Albasiny,
D. W. Martin,


Serial Information: Journal of the Engineering Mechanics Division, 1967, Vol. 93, Issue 3, Pg. 1-18


Document Type: Journal Paper

Abstract:

The complete linear bending equations for thin elastic shells are specialized to the case of single sheet hyperboloids that are subjected everywhere to the normal loading cos nθ, in which θ is the meridional angle. Solutions computed by finite difference methods for a typical cooling tower show: (1) that solutions in the main body of the shell are not sensitive to the forms of base support considered; (2) that the induced stresses have their largest values when n is 8 and thereafter decrease fairly rapidly with n; (3) that these stresses are predicted reliably by the membrane theory for n less than 4; and (4) that for loadings on model towers in wind tunnels, the results of membrane theory agree well with the complete bending solutions.

Subject Headings: Cooling towers | Membranes | Equilibrium | Load factors | Bending (structural) | Finite difference method | Elastic analysis | Linear functions | Case studies

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