$f_c^{\text{'}}=4,000,$ normal$-$weight concrete, $f_y=60,000$

Load on the slab, $L=140psf,D=45psf+$ Self weight

Design a continuous one$-$way slab for maximum $-M_u.$ Assume ends integral

with the support for moment calculations using the ACI approximate moment

equations for three spans. Check for maximum spacing requirements. Use the

beam width, $b_w=12$ inches to calculate the clear span for the slab. Note: One$-$way slab must be designed along the shorter span.