TY - GEN
T1 - GBT-based semi-analytical solutions for the elastic/plastic stability analysis of stainless steel thin-walled columns exposed to fire
AU - Gonçalves, R.
AU - Neves, Rui Alexandre Marçalo
AU - Camotim, D.
N1 - The authors gratefully acknowledge the financial support of FCT (Fundação para a Ciência e a Tecnologia, Portugal), through Project “StaSteFi—Fire design of stainless steel structural elements”.
PY - 2019/9
Y1 - 2019/9
N2 - This paper presents and illustrates the application of an efficient Generalized Beam Theory (GBT) semi-analytical solution procedure to determine elastic and plastic bifurcation loads (linear stability analysis) of stainless steel thin-walled members subjected to uniform compression and exposed to fire. Besides global (flexural or flexural-torsional) buckling, the proposed GBT formulation allows for cross-section deformation and therefore makes it possible to capture local and distortional buckling. The temperature effect is taken into account using the material law for stainless steel specified in Eurocode 3 part 1-4 (CEN 2006) and Annex C of part 1-2 (CEN 2009). For plastic buckling, the material tangent moduli are obtained using both J2 small-strain incremental and deformation plasticity theories. For illustrative purposes, the procedure is applied to columns with a lipped channel cross-section.
AB - This paper presents and illustrates the application of an efficient Generalized Beam Theory (GBT) semi-analytical solution procedure to determine elastic and plastic bifurcation loads (linear stability analysis) of stainless steel thin-walled members subjected to uniform compression and exposed to fire. Besides global (flexural or flexural-torsional) buckling, the proposed GBT formulation allows for cross-section deformation and therefore makes it possible to capture local and distortional buckling. The temperature effect is taken into account using the material law for stainless steel specified in Eurocode 3 part 1-4 (CEN 2006) and Annex C of part 1-2 (CEN 2009). For plastic buckling, the material tangent moduli are obtained using both J2 small-strain incremental and deformation plasticity theories. For illustrative purposes, the procedure is applied to columns with a lipped channel cross-section.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85084020670&origin=resultslist&sort=cp-f&src=s&st1=GBT-based+semi-analytical+solutions+for+the+elastic%2fplastic+stability+analysis+of+stainless+steel+thin-walled+columns+exposed+to+fire&sid=f524968d5af5826f873e85b3b2bd2000&sot=b&sdt=b&sl=148&s=TITLE-ABS-KEY%28GBT-based+semi-analytical+solutions+for+the+elastic%2fplastic+stability+analysis+of+stainless+steel+thin-walled+columns+exposed+to+fire%29&relpos=0&citeCnt=0&searchTerm=
M3 - Conference contribution
BT - Stability and Ductility of Steel Structures - Proceedings of the International Colloquia on Stability and Ductility of Steel Structures, 2019
PB - Structural Stability Research Council (SSRC)
T2 - International Colloquia on Stability and Ductility of Steel Structures, 2019
Y2 - 11 September 2019 through 13 September 2019
ER -