Cooling Tower Shells Founded on Soil

by Osama M. El-Shafee, Formerly, Post-Doctoral Fellow; Dept. of Civ. Engrg., Washington Univ., St. Louis, Mo.,
Phillip L. Gould, (F.ASCE), H.D. Jolley Professor and Chmn.; Dept. of Civ. Engrg., Washington Univ., St. Louis, Mo.,


Serial Information: Journal of the Structural Division, 1982, Vol. 108, Issue 4, Pg. 800-813


Document Type: Journal Paper

Abstract: A dynamic axisymmetric finite element model suitable for shells of revolution founded on ring footings is presented. The model consists of high-precision rotational shell finite elements, representing the axisymmetric shell, supported on an equivalent boundary system, representing the soil medium. The substructure method is used to model the shell and soil components. In addition to the seismic analysis capability of the proposed model, it is also applicable to other dynamic loads such as wind. The dynamic behavior of a hyperboloidal cooling tower shell on discrete supports with a ring footing is studied. Dynamic properties are examined and stress analysis is carried out for a variety of soil conditions.

Subject Headings: Finite element method | Soil dynamics | Axisymmetry | Dynamic models | Footings | Seismic loads | Dynamic analysis

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