Parametric optimization problem of cross-sectional sizes for cold-formed C-profiles subjected to central compression has been considered by the paper. formulated as follow: define optimum taking into account post-buckling behavior and structural requirements when stripe width thickness well type profile are constant defined designer.
 Criterion load-bearing capacity maximization assumed pu...

C and Z sections are two of the most common cold-formed steel shapes in use today. Accurate prediction of the bending performance of these sections is important for reliable and efficient cold-formed steel structures. Recent analytical work has highlighted discontinuities and inconsistencies in the American Iron and Steel Institute ~AISI! and Canadian Standards Association ~S136! design provisi...

During earthquake excitations, reinforced concrete bridge columns can be subjected to a combination of axial load, shear force, flexural moments, and torsional moments. The torsional moment can be much more significant in columns of bridges that are skewed, curved, have unequal spans, or unequal column heights. Combined loading including torsion can result in complex flexural and shear failure ...

The design rules for centrically compressed stainless steel equal-leg angle members are not explicitly stated in the current European standard SRPS EN 1993-1-4. This paper summarizes results of extensive research conducted on this type structural elements aiming to define recommendations their design. Based a systematic experimental investigation, detailed numerical analysis was performed, and ...

Abstract This paper investigates the lateral‐torsional buckling of built‐up cold‐formed steel beams featuring two or three component C‐ sigma‐sections arranged to have a closed loop. Several thicknesses each cross‐section with nominal yield stress values 450 MPa and 550 were tested obtain lateral strength data for range slenderness values. Complementary reference tests conducted on same section...

Steel angle sections are frequently employed in bracing systems or truss structures as single members built-up members. Angles may be coupled back-to-back to create Tee cruciform cross-sections. These sensitive torsional and flexural-torsional buckling due the cross-section shape fact that axial force not applied at shear centre. In this work, a comprehensive numerical investigation of behaviou...