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|Title:||Influence of splices on the stability behaviour of columns and frames||Authors:||Simão, Pedro D.
Coelho, Ana M. Girão
Bijlaard, Frans S. K.
|Keywords:||Column Stability; GBT; Lagrange Multipliers; Rayleigh-Ritz method; Spliced Columns||Issue Date:||2010||Publisher:||Federal University of Rio de Janeiro
State University of Rio de Janeiro
|Citation:||SIMÃO, Pedro D.; COELHO, Ana M. Girão; BIJLAARD, Frans S. K. - Influence of splices on the stability behaviour of columns and frames. In BATISTA, E.; VELLASCO, P.; LIMA, L. de, ed lit. - SDSS’Rio 2010 International Colloquium on Stability and Ductility of Steel Structures : proceedings. Rio de Janeiro : Federal University; State University, 2010. ISBN 978-85-285-0137-7. Vol. 2, p. 619-626||Serial title, monograph or event:||SDSS’Rio 2010 International Colloquium on Stability and Ductility of Steel Structures : proceedings||Volume:||2||Place of publication or event:||Rio de Janeiro||Abstract:||The paper presents a study on the influence of splice connections on the stability behaviour of compressed steel columns. The column is modelled as two independent prismatic parts connected by a rotational spring at the splice location and rotational and extensional springs at the column ends to represent the effect of the adjacent structure. The general behaviour is characterized using a polynomial Rayleigh-Ritz approximation substituted into the potential energy function, in combination with the Lagrange’s method of undetermined multipliers, and based on this model the critical load is found. The load-carrying capacity is analysed with respect to the following variables: (i) location and rotational stiffness of the splice, (ii) change in the column section serial size and (iii) column end-restraints stiffness coefficients. A nonlinear regression model is developed to predict simple relationships between the critical load and the relevant column characteristics.||URI:||http://hdl.handle.net/10316/14504||ISBN:||978-85-285-0137-7||Rights:||openAccess|
|Appears in Collections:||FCTUC Eng.Civil - Artigos e Resumos em Livros de Actas|
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