Engineering, 22.03.2021 17:50, xojade

An overpass is being considered for a certain crossing. The superstructure design under consideration will be made of reinforced concrete and will have a weight per foot depending on the span between piers in accordance with Piers will be made of steel and will cost $250,000 each. The superstructure will be erected at a cost of $3.20 per pound. If the number of piers required is to be one less than the number of spans, find the number of piers that will result in a minimum total cost for piers and superstructure if .

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An overpass is being considered for a certain crossing. The superstructure design under consideratio...