thread507-215879
Known: Mu (in kips), b (in), d (in), f'c (ksi) and fy (ksi).
Cu = β1*f'c*b*d/fy
(Remember: β1 is the depth factor for an equivalent compression stress block)
Equation 1a:
Required Steel Area (exact solution), As = Cu(1-(1-2Mu/Øfy d Cu)0.5)
Ø = 0.9 with the assumption the beam...