eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2016-12-17 4 7 440 444 10.12691/ajme-4-7-38 AJME20164738 article Pavol Lengvarsky pavol.lengvarsky@tuke.sk 1 Jozef Bocko 1 Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Košice, Slovakia In this paper the static analysis of the truss is investigated. The analytical and computational method of the roof structures are presented. At the beginning, the analytical method is used for determination of values of external supports, axial forces and principal stresses in truss. Then the computational method is used for the solution of the same problems. The roof structure is modeled by the finite element method, where the bar members are represented by the truss elements. The finite element model loaded by external forces, without and with self-weight of structure is computed. At the end, the analytical and computational buckling analysis for the trusses with maximal compressive axial force is performed. The comparison of results of analytical and computational method shows that all methods are accurate enough, but of course computational method is faster and more adaptive for any subsequent changes. http://pubs.sciepub.com/ajme/4/7/38/ajme-4-7-38.pdf static analysis truss analytical method finite element method buckling analysis