Solve all problems using the finite element stiffness method

Solve all problems using the finite element stiffness method. For the rigid frame shown in Figure P5-4. determine the nodal displacements and rotation at node 4, the reactions, and 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 times 103 ksi, A = 8 in.2, and I = 800 in.4 for all elements.

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