Modelling of connections in FE stability analysis of framed structures (CROSBI ID 132642)
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Turkalj, Goran ; Brnić, Josip ; Vizentin, Goran ; Lanc, Domagoj
engleski
Modelling of connections in FE stability analysis of framed structures
Semi-rigid connections and their influence on the elastic buckling load value of frame structures are considered. A numerical FE method is presented. Equilibrium equations of a buckled beam member are derived applying linearized virtual work principle. Connection stiffness is taken into account by modifying conventional stiffness matrices, thus obtaining a hybrid beam element which enables the integration of semi-rigid connections in stability analysis. Stability analysis is treated as an eigenvalue problem.
stability analysis; finite element method; frames; flexible connections
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