Use the Unit Load Method to compute the horizontal displacement ${}_{Ax}$ of joint A of the following planar

frame. Assume that the frame has a roller support at $A,$ a simple support at $C,$ and that all members have same

El$.$ Express your answer as a positive EI ${}_{Ax}$ value $($e$.$g$.$ EI ${}_{Ax}=120).$ Drop any minus sign from your answer.

W

$|-d_1+d_2$

Assume that

$W=15k\frac{N}{m}$

$P=50kN$

$d_1=1\mathrm{.}5m$

$d_2=1\mathrm{.}5m$

$d_3=4m$

$d_4=4m$

The value of $EI{}_{Ax}$ is equal to: