Solve all problems using the finite element stiffness method. For the rigid frame shown...

Solve all problems using the finite element stiffness method.

For the rigid frame shown in Figure P5–4, determine (1) the nodal displacements and rotation at node 4, (2) the reactions, and (3) the forces in each element. Then check equilibrium at node 4. Finally, draw the shear force and bending moment diagrams for each element. Let E = 30 × 10³ ksi, A = 8 in.² , and I = 800 in.⁴ for all elements.