Jardim Júnior, F. et al. 2021. Study of the viability of the Direct Strength Method in cold formed steel lipped channel sections with perforations. REEC - Revista Eletrônica de Engenharia Civil. 17, 1 (Dec. 2021), 1–15. DOI:https://doi.org/10.5216/reec.v17i1.56289.