Review of matrix algebra solution of equations, review of energy principles, virtual work; structural indeterminacies;, formalized flexibility method of structural analysis, development of element stiffness matrices, direct stiffness method of analysis for 2D and 3D structures, computer applications and software development axial force effects; fundamental of vibrations; equations of motion for SDOF-systems; analysis of harmonic motion; analysis of undamped and damped motions.