A$)$ Consider the frame in the adjoining figure, which is subjected to the following actions:

Case $1)$ Distributed load acting on member $BC$ only

Case $2)$ Initial curvature in member $AB$ only

Case $3)$ Support settlement at point $D$ only

Determine the horizontal displacement at point $C$ for each of the above cases.

B$)$ Consider the case $4$ below where all actions act simultaneously

Case $4)$ All actions combined $=$ Cases $1+2+3$

Determine for case $4$ the support reactions, member force in $AB$ and horizontal displacement at $C$

Enter your answers in the space provided.

Dimensions:

$\backslash$table$[[h,9,m$