Structural assessment of an existing steel frame building for adding new story by linear static analysis. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 3, p. 682–698, 2021. DOI: 10.21533/pen.v9.i3.882. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/882. Acesso em: 21 apr. 2026.