The city I work for is comtenplating contracting with our local Sanitary District (sewage treatment)to allow them to provide billing services for the city sewer charges. It is estimated that the billing would cost the city $250,000per year with an initial startup cost(software) of $100,000. the...
I am trying to calculate a spiral rebar cage that is 5' 3" in diameter, 55' in heigth, and has 6" between loops. i believe this is called pitch. i know the weight of the rebar per foot but cannot find a suitable formula for the spiral length.
