TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
The Influence of Beams' Axes Shifting on the Level of Stress and Displacements
(Influenţa dezaxării barelor asupra nivelului de tensiuni şi deplasări)
Vol LXII • No. 4B/2010
Ioan Popa, Ion Florea, Lavinia Silvia Stanciu
Universitatea Petrol - Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail : ipopa@upg-ploiesti.ro

 Keywords   resistance calculus, beams, concurrent axes.

 Abstract
In the case of metallic structures consisting of beams, there are situations where, technically, many beams can not or should not get fixed in their nodes, so that their axes intersect. In many cases, for these structures there are adopted computational models having beams with intersected axes, which no longer meet the real situation. In the present paper, the authors will present, on concrete examples, the results of the resistance calculus for structures of which the beams have intersected axes, versus the results of the resistance calculus for structures of which the beams have non-intersected axes.

 Rezumat
În cazul structurilor alcătuite din bare, există situaţii în care barele nu se pot sau nu trebuie să se prindă la noduri, astfel încât să rezulte concurenţa axelor acestora. Daca se adoptă modele de calcul cu axele barelor concurente, fapt care nu mai respectă situaţia reală, apar semnificative erori de calcul. În articolul de faţă se vor prezenta, pe exemple concrete, rezultatele calculelor de rezistenţă pentru structuri având bare cu axele concurente în noduri, comparativ cu rezultatele în cazul structurilor din bare cu axele neconcurente în noduri, precum şi erorile ce apar.



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