Multi-Storey Steel Frame with Large Atrium, Transfer Beams, and Pile Foundations

This solution details a multi-storey steel frame featuring a 24m clear-span atrium, composite metaldeck slabs, and a reinforced concrete pool flat slab. The structural scheme employs braced bays and shear walls for lateral stability, utilizing the slabs as diaphragms to transfer lateral loads.

Key engineering challenges addressed include buoyancy and hydrostatic uplift managed via raft and pile foundations, and significant load redistribution through deep transfer beams. Technical design checks cover castellated secondary beams, truss axial forces, column buckling, punching shear, and wind-induced tension in cross-bracing.

Deliverables include comprehensive load run-downs, schematic plan and section drawings, and detailed connection sketches featuring elastomeric bearings and expansion joints.