Structural fire engineering involves designing structures to withstand the effects of fire and minimize the risk to occupants and firefighters. Craft a theoretical framework elucidating the principles of structural fire engineering, including fire behavior, structural fire resistance, and fire protection measures. Discuss theoretical models for predicting fire dynamics and structural response to fire loading, such as computational fluid dynamics $($CFD$)$ simulations and structural fire analysis methods. Explore theoretical approaches to fire$-$resistant construction materials and systems, including fireproofing, compartmentation, and structural fireproofing, and analyze their role in enhancing fire safety and resilience in buildings and infrastructure.