Footings Example 1—Design of a square spread footing of a seven-story building Design and detail a typical square spread footing of a six bay by five bay seven-story building, founded on stiff soil, supporting a 24 in. square column. The building has a 10 ft high basement. The bottom of the footing is 13 ft below finished grade. RC RAFT FOUNDATION (BS8110) RAFT FOUNDATION DESIGN (BS8110 : PART 1 : 1997) Raft and soil definition Soil definition Allowable bearing pressure qallow = 75.0 kN/m 2 Design depres'n dia under slab ?depslab = 1900 mm Raft slab definition Max dim between joints lmax = 20.000 m Slab thickness hslab = 250 mm The only difference between the normal strip foundation and the strip foundation with an orthogonal cross section is the fact that the latter requires reinforcement at the "flange's" upper surface. In the case of a strip foundation where the flange and the web have the same dimensions a hidden beam is formed. The Institution of Structural Engineers The Institution of Civil Engineers MARCH 2000 Manual for the design of reinforced concrete building structures to EC2 In this report, a full discussion and clarification of the design of Raft foundation in loose sand will be shown in details. The columns loads calculation for this raft is also will be shown in terms of the turbidity area of the columns. Reinforcement detailing of footing is as much important as site investigation for the structural design of footing. A good detailing reflects the design requirement of the footing for structural stability.A good detailing of reinforcement covers topics like cover to reinforcement Overview of rebar modelling, detailing & scheduling in Revit concrete elements such as raft foundations and other mass concrete elements. about detailing of reinforcement in Revit as Manual for Design and Detailings of Reinforced Concrete to Code of Practice for Structural Use of Concrete 2004 Housing Department May 2008 (Version 2.3) The minimum rein