Advanced Strengthening of Steel Structures: Investigating GFRP Reinforcement for Floor Beams with Trapezoidal Web OpeningsMohammed Benzerara, Hamda Guedaoura, S.M. Anas, Mashalbek Yolchiyev and Barno DaminovaE3S Web Conf., 497 (2024) 02013DOI: https://doi.org/10.1051/e3sconf/202449702013