4.7 OVERHANGING BEAMS
If the end portion of a beam extends beyond the support, then the beam is known as overhanging beam. Overhanging may be on one of the supports or on both the sides.
In the case of an overhanging beam, the bending moment is positive between the supports, whereas the bending moment is negative for the overhanging portion.
At the same point on the beam, the bending moment is zero or changes sign from positive to negative value or vice versa. This point where the bending moment changes sign is called as the point of contraflexure or point of inflexion.
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