The 6 m long fixed-fixed steel (E = 210 GPa, I = 4 × 10-4 m4 ) in Figure 11.38 can be modeled using.

The 6 m long fixed-fixed steel (E = 210 GPa, I = 4 ×
10−4 m4 ) in Figure 11.38 can be modeled using two 3 m long elements.
Using hand calculations, determine the displacement and slope at node 2 knowing
the element stiffness matrix is given by