[ANSWERED] Solve the grid structures shown in Figures P5–52 through P5–57 using a computer program. For grids..

Solve the grid structures shown in Figures P5–52 through
P5–57 using a computer program. For grids P5–52—P5–54, let E = 30
10
6
psi, G = 12
10
6
psi, I = 200 in.
4
,
and J = 100 in.
4
, except as noted in the figures. In Figure P5–54,
let the cross elements
have I = 50 in.
4
and J = 20 in.
4
, with
dimensions and loads as in Figure P5–53. For grids P5–55 through P5–57, let E =
210 GPa, G = 84 GPa, I = 2
104 m
4
, J =1
10
4
m
4
, and A = 1
10
-2
m
2
.