Preliminary Concrete Sizing

The question we looked at was a newspaper building (Q4 2005) and we all pretty much had at least one scheme that comprised the following layout. Roof to level 5, slab spans 6.25mx6.15m, either flat slabs or down stand beams Transfer structure at level 5, and slabs spanning 13.3mx 12.5m. Looking at the upper floors first, the floor span is relatively small (