This project will develop performance-based fire-resistant design provisions for the complete floor system consisting of composite floors, SpeedCore walls, and wall-to-floor connections. The design provisions will consider both standard and design fire scenarios and develop design methods that account for the complexities of behavior including thermal deformations (expansion / contraction, bowing), restraints including axial and flexural deformations and forces induced in the connections, and connection limit states including fracture failure. Different types of shear connections between the wall and floor system will be considered.