Distortional buckling resistance of cold-formed steel

Evaluation of limit state of stress and strain of free-fixed columns with variable geometry according to criteria from the Brazilian code for concrete structures

“…The dimensions, heights and structural arrangement of the column and column segments are shown in Figure 4, (a) and (b), where g is the gravitational acceleration; S1, S2, S3, S4, and S5 are the cross-sections; D and th indicate the external diameter and wall thickness, respectively; db represents the diameter of steel bars; nb is the number of bars, c´ is the cover of concrete in the respective cross-sections, and "Var" indicates tapered section at the segment. It is worth mentioning that, although the average wall thickness of the cross-sections represents 0.72% of the height of the superstructure, no analyses regarding the local buckling or distortion of the section were considered, since it is a problem that should be treated with another specific approach, as discussed by Pierin and Silva (2015). Therefore, the present approximation is restricted to the global instability evaluation, similar to the work developed by Schnabl and Planinc (2017).…”

Industrial storage system continuous perforated uprights: a combined design proposal

“…There are numerous studies regarding industrial storage systems constructed of cold-formed steel. The main elements are studied separately, including continuous perforated uprights, beams, and connections (Baldassino, Bernuzzi, & Simoncelli, 2019;Bernuzzi & Simoncelli, 2017;Elias, Neiva, Sarmanho, Alves, & Castro, 2018;Huang, Wang, Zhao, & Sivakumaran, 2021;Liu, Pekoz, Gao, Ziemian, & Crews, 2021;Neiva et al, 2018;Pierin & Pignatta, 2015;Prabha, Marimuthu, Saravanan, & Arul Jayachandran, 2010;Sena Cardoso & Rasmussen, 2016). Neiva et al (Neiva et al, 2018) carried out a numerical and experimental study about uprights with perforated section racktype in a cold-formed profile.…”