TY - GEN
T1 - Ultimate Strength and Design of Lipped Channel Columns Experiencing Local/Distortional Mode Interaction - Part I
T2 - 6th International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics, ICASS 2009
AU - Young, Ben
AU - Camotim, Dinar
AU - Silvestre, Nuno
PY - 2009/12/1
Y1 - 2009/12/1
N2 - This paper reports the results of an experimental investigation aimed at assessing the post-buckling behaviour and ultimate strength of fixed-ended cold-formed steel lipped channel columns experiencing local/distortional mode interaction. A total of 26 columns were tested and the specimens were carefully selected to ensure various levels of local/distortional interaction effects (more or less close local and distortional critical stresses). The experimental results presented consist of the specimen geometries, material properties, initial imperfections, non-linear equilibrium paths and ultimate strength values. Since the collapse of most columns combines local and distortional deformations, these experimental results may be used to (i) assess the relevance of local/distortional interaction, (ii) calibrate and validate numerical simulations and (iii) provide experimental data aimed at developing a Direct Strength Method (DSM) approach to design cold-formed steel lipped channel columns against local/distortional interaction ? such a DSM approach is addressed in Part II of this paper.
AB - This paper reports the results of an experimental investigation aimed at assessing the post-buckling behaviour and ultimate strength of fixed-ended cold-formed steel lipped channel columns experiencing local/distortional mode interaction. A total of 26 columns were tested and the specimens were carefully selected to ensure various levels of local/distortional interaction effects (more or less close local and distortional critical stresses). The experimental results presented consist of the specimen geometries, material properties, initial imperfections, non-linear equilibrium paths and ultimate strength values. Since the collapse of most columns combines local and distortional deformations, these experimental results may be used to (i) assess the relevance of local/distortional interaction, (ii) calibrate and validate numerical simulations and (iii) provide experimental data aimed at developing a Direct Strength Method (DSM) approach to design cold-formed steel lipped channel columns against local/distortional interaction ? such a DSM approach is addressed in Part II of this paper.
KW - Cold-formed lipped channel columns
KW - Experimental investigation
KW - Highstrength steel
KW - Initial geometrical imperfections
KW - Local-distortional interaction
KW - Mild steel
KW - Ultimate strength
UR - http://www.scopus.com/inward/record.url?scp=77955067819&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:77955067819
SN - 9789889914059
T3 - ICASS '09/IJSSD - Proceedings of Sixth International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics
SP - 460
EP - 469
BT - ICASS '09/IJSSD - Proceedings of Sixth International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics
Y2 - 16 December 2009 through 18 December 2009
ER -