Numerical Study of Composite Concrete Castellated Double Channel Beams with Strengthening Techniques. Journal of Engineering, [S. l.], v. 30, n. 02, p. 30–51, 2024. DOI: 10.31026/j.eng.2024.02.03. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/2706. Acesso em: 29 mar. 2025.