Rectangular Beams with Tensile Reinforcing Only. This type of beam includes slabs, for which the beam width b equals 12 in (305 mm) when the moment and shear are expressed per foot (m) of width. The ...

4.4.3 limits the size of notches at the ends of members for bearing over a support. The depth of such notches cannot exceed one-fourth of the total depth d of the beam. In this example, d = 17 5/8 in.