Theoretical Non-Linear Analysis of Composite ( Pultruded GFRP I-Section and Deck Concrete) Strengthened With GFRP Stiffness: Theoretical Non-Linear Analysis of Composite ( Pultruded GFRP I-Section and Deck Concrete) Strengthened With GFRP Stiffness. Samarra J. Eng. Sci. Res. [Internet]. 2024 Apr. 1 [cited 2026 May 13];2(1):64-75. Available from: https://journals.uosamarra.edu.iq/sjesr/article/view/19