Location : Alfred Rewane Road, Ikoyi, Lagos, Nigeria
Built up Area : 24,000m2
Office building consisting of 18 suspended floors (including roof) + 1No. basement floor
12m deep, 600mm thick reinforced concrete diaphragm wall construction was adopted as the excavation retaining wall to shore the basement floor construction.
Various diameters of deep seated bored piles (800mm to 1400mm ), to 42m & 57m depths, were installed to support the superstructure.
The Superstructure is formed with a reinforced concrete frame with a typical floor system of 300mm thick flat slab on grids of 9m x 9m.
Shear walls, as required, were introduced within the building for lateral stability.