Simply Supported Beam : Overhang to One Side : Point Load : (Fig. 3.20)
Simply supported – a beam supported on the ends which are free to rotate and have no moment resistance
Over hanging – a simple beam extending beyond its support on one end.
Point loads are concentrated loads applied along the span of a member or the edge of a wall panel. Defining point loads may be accomplished graphically or in the spreadsheets.
In this example, one get clear idea how to calculate reactions when a simply supported beam is having point load overhang on one side of the support.
Reactions : Taking moments about B, we get
(i.e. acting downwards)
S.F.D. : Between C and A, S.F. =-W=constant
Between A and B, S.F. =
The S.F.D. is shown in Fig. 3.20 (b).
B.M.D. : Between C and A,
Mx=Wx, which gives MC=0 ; MA=Wa.
Between A and B,
which gives MA=Wa and MB=0.
The B.M.D. diagram is shown in Fig. 3.20 (c).