EFFECTS OF FLEXURAL RIGIDITY OF REINFORCEMENT BARS ON THE FUNDAMENTAL NATURAL FREQUENCY OF REINFORCED CONCRETE SLABS. Nigerian Journal of Technology, [S. l.], v. 28, n. 2, p. 48–57, 2008. DOI: 10.4314/njt.282.542. Disponível em: https://nijotech.com/index.php/nijotech/article/view/542.. Acesso em: 27 apr. 2024.