Hybrid beam element for stability analysis of semi-rigid frames (CROSBI ID 519896)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Turkalj, Goran ; Vizentin, Goran ; Brnić, Josip
engleski
Hybrid beam element for stability analysis of semi-rigid frames
Semi-rigid connections and their influence on the elastic buckling load value of frame structures are presented. Equilibrium equations of a buckled beam member are derived applying linearized virtual work principle, St. Venant torsion theory and Euler-Bernoulli flexural theory. Deformations prior buckling are neglected, while material is assumed to be homogeneous, isotropic and linear-elastic. The hybrid S-R (semi-rigid) beam element for modelling of frames containing connections of various rigidity is presented. Elastic and geometric stiffness matrices of the S-R element are derived by a special transformation of the conventional beam element stiffness matrices. Stability analysis is treated as an eigenvalue problem. On the basis of the aforementioned numerical algorithm, the computer program EIGEN-SR is developed. Accuracy of the programme is verified through appropriate examples proving, thus, the modeling of frames as semi-rigid ones is justified.
stability; semi-rigid connections; semi-rigid frames; hybrid beam element; FEM
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Podaci o prilogu
CD-ROM-x.
2006.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 5th International Congress of Croatian Society of Mechanics
Matejiček, Franjo
Zagreb: Hrvatsko društvo za mehaniku (HDM)
Podaci o skupu
5th INTERNATIONAL CONGRESS OF CROATIAN SOCIETY OF MECHANICS
predavanje
21.09.2006-23.09.2006
Trogir, Hrvatska