Stability of Water Cooled Columns

by Atle Gjelsvik, Assoc. Prof. of Civ. Engrg.; Dept. of Civ. Engrg. and Engrg. Mech., Columbia Univ., New York, NY,

Serial Information: Journal of the Engineering Mechanics Division, 1971, Vol. 97, Issue 4, Pg. 1205-1222

Document Type: Journal Paper


It is shown analytically that the buckling strength of tubular columns can be significantly reduced by partial yielding caused by temperature gradients across the wall of the column. The buckling is of the Shanley type. For columns subjected to constant load, the temperature difference between the outside and inside of the column takes the place of the load in the classical Shanley formulation, and it is this temperature difference which must increase as the column begins to bend. Columns with a slenderness ratio close to the critical are the most sensitive to the temperature gradients. It seems possible that such a column with unavoidable imperfections, designed according to the usual practice for unheated columns, may become unstable at the temperature reached during a fire.

Subject Headings: Temperature effects | Water management | Columns | Buckling | Thermal loads | Load factors | Thermal analysis | Structural strength

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