Check the minimum beam depth requirement of ACI 318-14 (Table 9.3.1.1) to waive deflection computations.
Using the minimum depth for non-prestressed beams in Table 9.3.1.1.
(For simply supported beams) | ACI 318-14 (Table 9.3.1.1) |
Therefore, since hmin = 18.75 in. < h = 20 in. the preliminary beam depth satisfies the minimum depth requirement, and the beam deflection computations are not required.
In absence of initial dimensions, the width of the rectangular section (b) may be chosen in the following range recommended by the reference:
o.k.