Retrofitting of Box Section Concrete Beams to Resist Shear and Torsion Using Near-Surface-Mount (NSM) GFRP Stirrups. Fract&SI [Internet]. 2023 Dec. 17 [cited 2026 Oct. 16];18(67):319-36. Available from: https://staging.fracturae.com/index.php/fis/article/view/4532