Comparative Design of Structural Steel Truss Frame and Post-Tensioned Concrete Frame with Deep Transfer Beams

This solution evaluates two structural schemes: a structural steel frame utilizing a roof truss and metaldeck composite slabs, and a reinforced concrete frame featuring deep post-tensioned (PT) transfer beams spanning 16m. Key engineering challenges addressed include managing large spans, cantilevered balconies, and complex ground conditions involving a high water table and varying soil strata.

Comprehensive feasibility calculations are provided for truss loading, PT beam shear and moment, post-tensioning stress checks, column buckling, and secant wall/pile foundation design. The solution includes detailed load run-down diagrams, structural zone layouts, and schematic sections (A-A, B-B) for both schemes, covering both serviceability and ultimate limit states.