Cylindrical Concrete Water Tanks: Analysis and Design
The minimum weight design of circular cylindrical concrete water tanks is studied in this paper. The internal radius and height of a tank are maintained constant while the thickness of the wall is varied along the axis so that the bending (tensile) and hoop stresses attain values as close as possible to their respective allowable values. Only the piecewise linear variations of wall thickness are considered. For the analysis a numerical procedure which combines the Runge-Kutta method of solution of ordinary differential equations with a numerical minimization method is used. This procedure is then imbedded into a minimization routine to deal with the design problems.
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