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Engineering Review : Međunarodni časopis namijenjen publiciranju originalnih istraživanja s aspekta analize konstrukcija, materijala i novih tehnologija u području strojarstva, brodogradnje, temeljnih tehničkih znanosti, elektrotehnike, računarstva i građevinarstva, Vol. 26 No. 1-2, 2006.

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STABILITY ANALYSIS OF SEMI-RIGID FRAMES USING FINITE ELEMENT METHOD

Goran Vizentin ; Tehnički fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska

Puni tekst: hrvatski pdf 161 Kb

str. 97-97

preuzimanja: 353

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Puni tekst: engleski pdf 161 Kb

str. 97-97

preuzimanja: 308

citiraj

Sažetak

In this work 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, and material is assumed to be homogeneous, isotropic and linear-elastic. In the numerical part of the paper the hybrid S-R (semi-rigid) finite element for the modelling of frames containing connections of various rigidity is presented. Elastic and geometric stiffness matrices of the S-R element are derived by transformation of the conventional beam finite 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 modelling of frames as semi-rigid ones is justified.

Ključne riječi

stability; semi-rigid connections; eigenvalues; programming

Hrčak ID:

28415

URI

https://hrcak.srce.hr/28415

Datum izdavanja:

27.12.2006.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.777 *