Example:

A typicol floor plan for a concrete building is shown below

a$)$ Compute the moment and shear diagram envelopes for beams olong, lines $5$

b$)$ Show the dimensions of cross sections of the beam to be designed in line $5$ between A and $B$

$h=26$ in $($total depth for all beoms$)$

$h_f=6$ in $($slob thickness$)$

$f_c^{\text{'}}=4000$ psi, $f_y=60000$ psi, normal weight concsete $150l\frac{b}{f}{t}^3{}_L=120$ psf $($live load on floor$)$