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 ...

Refer to the ACI Code for specific applications of these formulas. Negative moment at face of all supports for ( a) slabs with spans not exceeding 10 ft (3 m) and ( b) beams and girders where the ...