Fig 2: Column head dimension along: Adopting the diameter of column head = 1.30 m =1300 mm f) Depth of flat slab: The thickness of the flat slab up to spans of 10 m shall be generally controlled by considerations of span ( L ) to effective depth ( d ) ratios given as below: Cantilever 7; simply supported 20; Continuous 26 For slabs with drops, span to effective depth ratios given above shall be applied directly; otherwise the span to effective depth ratios in accordance with above shall be multiplied by 0.9. For this purpose, the longer span of the panel shall be considered. The minimum thickness of slab shall be 125 mm.
9 Longer span Shorter span L =6.6 m , L =5.6 m 1 2 Not greater than L /4 = 1.65 m 1 L =5.6 m , L =6.6 m 1 2 Not greater than L /4 = 1.4 m 1