@#$\%^$$$^$#$\%$$@#$^\%$#$$\%^$$#$^*$&$&$^\%$#$&$*^$$$^\%$$$\%^$&$&$^$$$^*\%$$$^\%$&$$^\%$$$\%^$&$$^$ Explain the role of concrete and steel in providing strength and durability to such structures. Detail the process of designing a reinforced concrete beam, considering factors like loading conditions, material properties, and safety requirements according to relevant building codes