$16$

Multiple Choice $10$ points

Use the moment distribution method with modified stiffness factor to complete the table. Assume $E$ is constant, A is fixed, B and C are rocker supports.

$\backslash$table$[[$Joint$,$A$,$B$,,$C$],[$Member$,$AB$,$BA$,$BC$,$CB$],[$DF$,0,x_1=,0\mathrm{.}5294,1],[$FEM$,,,-12000,],[$Dist$.,,x_2=,,],[$CO$,x_4=,,,],[$Sum$,,,,]]$