Construction materials have advanced significantly, with carbon fiber-reinforced polymers (CFRP) as an efficient option for enhancing structural performance when applied correctly. This research aims to design and analyze reinforced concrete beam sections combining concrete, steel, CFRP strips, and metal tubes. The study depends on the high compressive strength of concrete confined in metal tubes and the tensile strength of CFRP strips. At the same time, transverse and longitudinal reinforcement contribute to shear and flexural resistance. Twelve beam models were analyzed, comprising three conventional reinforced concrete beams and nine composite sections that incorporated CFRP and metal tubes. Results showed a significant improvement in moment capacity; using CFRP increased the capacity by 82.76% on average, metal tubes by 628.27%, and the combined use of both by 791.3%. The study highlights the effectiveness of these techniques in both the design and strengthening phases, offering practical guidelines for future applications