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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Rework Problem 2-18 assuming that the superimposed live load has increased to 1.75 kips/ft and there is now a 1.0 kip/ft superimposed dead load (in addition to the beam weight). As before, check ∅Mn for the beam designed.
Problem 2-18
Design a rectangular reinforced concrete beam (tension steel only) for a simple span of 30 ft. There is no superimposed dead load (other than the weight of the beam) and the superimposed live load is 1.35 kips/ft. The beam is to be 12 in. wide and 27 in. deep overall. Use f′ c = 5000 psi and A615 grade 60 steel. As a check, calculate ∅Mn for the beam designed.
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