Six-Storey Mixed-Plan Office with Steel Moment Frame, Transfer Beams, and CFA Piles

This solution designs a six-storey city centre office featuring a transition from square lower floors to octagonal upper levels. The recommended scheme utilizes a structural steel frame with metal deck ribbed slabs and Moment Resisting Frames (MRF) around cores for lateral stability.

Key challenges addressed include achieving large column-free spans on lower levels and managing load transfer via deep transfer beams. Technical calculations cover wind loading, column buckling with eccentricity, transfer beam bending, and CFA pile bearing capacity, referencing BS EN 1990-1997. Deliverables include a comprehensive design appraisal, A1-A3 carbon calculations, schematic plans, and a detailed construction method statement.