ELASTIC STABILITY OF BEAM-COLUMNS WITH FLEXURAL CONNECTIONS UNDER VARIOUS CONSERVATIVE END AXIAL FORCES

Citation
Jd. Aristizabalochoa, ELASTIC STABILITY OF BEAM-COLUMNS WITH FLEXURAL CONNECTIONS UNDER VARIOUS CONSERVATIVE END AXIAL FORCES, Journal of structural engineering, 123(9), 1997, pp. 1194-1200
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Engineering, Civil","Construcion & Building Technology
ISSN journal
0733-9445
Volume
123
Issue
9
Year of publication
1997
Pages
1194 - 1200
Database
ISI
SICI code
0733-9445(1997)123:9<1194:ESOBWF>2.0.ZU;2-L
Abstract
Stability criteria that evaluate the elastic critical axial load of be am-columns with flexural connections under the combination of conserva tive end axial forces are presented in a classical manner, The end axi al loads include gravity loads combined with forces such as those prod uced by tension cables that always pass through fixed points or forces applied by rigid links. The proposed method follows the same format a nd classification of beam-columns and frames under gravity loads. The derived equations that can be applied to the stability analysis of bea m-columns in structural and mechanical systems with rigid, semirigid, and hinged end connections overcome the limitations of current methods of stability analysis (such as the well-known alignment charts for br aced and unbraced columns and frames under gravity loads), Several exa mples are presented in detail that demonstrate the effects of compress ive forces applied by prestress-ed cables or rigid links combined with gravity loads on the overall stability of frames and the effectivenes s of the proposed stability equations.