Discuss the principles of structural analysis in civil engineering, emphasizing the importance of understanding the behavior of various materials under different loading conditions. Explore the fundamental concepts behind structural analysis methods such as the equilibrium equations, compatibility conditions, and constitutive equations for materials. Delve into the significance of analyzing structures for internal forces, deformations, and stability to ensure safety and efficiency in design. Furthermore, elaborate on the role of computational tools and software in modern structural analysis practices, addressing their advantages and limitations in simulating complex real$-$world scenarios.