Question

The bending moment diagram of a beam is shown in the figure.

The shear force diagram of the beam is represented by

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

(a)
$Shearforce=\frac{d}{dx}\left(Bendingmoment\right)$

As BMD is linear, therefore shear force must be constant and slope of BMD change its sign at mid-span therefore shear force also changes its sign at mid span.