2. Eight times the slab thickness on each side of the stem plus the stem thickness:

3. Center-to-center spacing of the panel:

Select the flexural steel As for Mu = 562.50 kip-ft using the trial method. The effective depth d = h - 2.6 = 22.5 - 2.6 = 19.9 in.

S fy 60

Check value of a.

384.62 = T = C = abeff(0.85f) = a(90)(0.85)4 a = 1.26

Figure 7.15. Design example, simply supported T-beam.

Repeat the procedure using a moment arm based on the improved value of a.

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