Question

A simply supported beam with an overhang is traversed by a unit concentrated moment from the left to the right as shown below

The influence line for reaction at B is given by
——>» Direction of Motion

• A.
• B. Zero every where
• C.
• D.

Answer 1

The correct option is A


What ever may be the position of couple,reactions are same at supports of simply supported beam with over hang.
$\sum M_A=0$
$\therefore R_B\times L=1$
$R_B=\frac{1}{L}$
$\therefore ILDis{R}_B$