A General Overview of some Stadium Design methods employed in Nigeria
There has been a lot of talk about the Uyo Stadium of late, especially as it has now been completed and commissioned (See video). However where does this stadium really stack up internationally? The beauty of this stadium lies in its structural components and cladding. It may not include features such as retractable elements or an Olympic Standard seating capacity, but on the topic of structural organization, efficiency and beauty - it is World Class. It also features a multi-coloured lighting system that filters through 15mm point fixed white plexiGlass panels. The design is inspired by the Alianz Arena in Munich, Germany.
The Stadium seats 30,000 people and has 36 emergency exits, floodlights and two video-capable screens. However as stated earlier, the real beauty of the facility lies in its structure.
Length: 248 m
Width: 156 m
Height: 24 m
A Cantilever is essentially a horizontal beam or structure that is not supported on one end. What you will notice about cantilevers, is that they are usually tapered, because there is greater stress and force being applied at the support than at the ends. Even more importantly, an effective cantilever will be a continuous design to the ground. In the Port Harcourt Stadium however (shown below), we see that the system is quite discontinuous and there is no tapering, which means that the roof cannot span the entire length of the stands without structural posts midway.
The general rule of thumb in cantilever design, is that the more back-span you have, the more cantilevering is possible. The Uyo Stadium has a lot of back-span, because the roofing trusses, curve all the way towards the ground. The Port Harcourt trusses on the other hand, do not have enough back-span as they are terminated at the roof level.
The Abuja Stadium as with the Uyo Stadium make use of modern engineering to save on material consumption and to enhance the experience.
Written by T.Adeniyi for BBB.