Analysis of Substation Deadend Concrete Structures

Three full-scale concrete pole substation frame structures were tested under specified loading conditions to compare the actual test performance to the theoretical computational predictions based on conventional structural analysis. The objective was to develop refined analytical procedures, conceivably based on improved modeling of the structures, which provide better estimation of the induced forces due to structural loads. Various loading cases were applied to each structural configuration, and all structures were loaded to destruction. All testing was conducted in a vertical configuration, with the poles embedded in crushed granular material to simulate actual field conditions.