Problem $2.(50$ points$)$:

Use the moment distribution method to analyze the frame structure as shown $($Use at least $6$

cycles of moment distribution for your solution$).$ The frame has fixed connections at A and D$.$

Note that joints B and C are rigid and can carry moments. Use a well$-$organized Table showing

all the necessary steps and important features. Explain clearly the process during the moment

distribution with well organized rows and columns and side note to explain the procedure.

Determine the internal moments, shear forces and reactions of the frame at the supports

and rigid connections.

Draw an expanded free$-$body diagram for the $($exploded$)$ frame and show all internal

moments, shear forces and reactions for each span. El$=$constant.

Draw the shear and moment diagram for the frame.

How will the answer change if member $BC$ has a stiffness of $4$I compared to I value for $AB,$

and $CD.$

Show all your work, show all the steps to get the maximum credit, be neat and organized, take

a good photo or scan of the finished exam, use dark pen or pencil on light color paper. Each

step of your solution should be numbered. We need to easily be able to follow your work and

solution.

$EI=$ constant