BIM For the Fowl’s Nest – A Case Examine

8 Oct by Timothy Harris

BIM For the Fowl’s Nest – A Case Examine

The Fowl’s Nest, formally often known as the Nationwide Stadium, triggered fairly a stir when it was unveiled in 2008. It was each hated and liked, however for architects, engineers and building staff world wide, it impressed one other emotion – awe. This undertaking was enormously detailed, and couldn’t have been achieved in as quick a time, with as low prices and little room for error, had it not been for constructing info modeling know-how. We have a look at how BIM made it potential for the structural engineers, metal detailers and building staff to place the Fowl’s Nest collectively in time for the Olympics.

Important statistics for the Fowl’s Nest

* 332m lengthy, 297m vast, 69m excessive

* Website space: 204,278 sq. m.

* Construction incorporates 36km of unwrapped metal size

* Largest metal truss spans 343m

The Fowl’s Nest Challenges

To some individuals it would seem like a tangled ball of discarded wire. To the people who constructed it, there was far more concerned than discovering leftovers. Among the points that constructing info modelling helped resolve shortly for the structural engineers and metal detailers included:

* Weight minimization

* Decreasing building prices

* The saddle-shaped, ellipse primarily based roof

* An outward incline of the exterior floor of 13 levels from vertical

* As you see within the important statistics, the biggest metal beam is 343m lengthy, and the construction used 36km of unwrapped metal size.

How BIM helped

One of the troublesome elements of the constructing for the structural engineers was the roof. The big weight of the metal confirmed of their calculations {that a} full metal roof was merely not potential. It took over a yr for Chinese language metal detailers and fabricators (two corporations – Huning and Jinggong) to provide symmetrical 3D views of the connections and members. Good constructing info modeling software program has mirroring capabilities, which took plenty of the legwork out of this undertaking. The connections are nearly not possible to visualise mentally – however this isn’t required, with the appearance of 3D modeling for building.

One other of the Fowl’s Nest’s main options that may not have been potential with out BIM is the cushion system of the interior areas of the constructing’s facade. It was not solely assist that needed to be thought-about within the design; the structural engineers used constructing info modeling to foretell how the construction would react to wind, daylight and climate. The answer ended up being to fill some areas strategically with ETFE, a translucent materials used to assemble the ‘Bubble Constructing’ additionally within the Chinese language Olympic Park.

Clearly, the looks of the constructing is it is most vital issue. It’s completely different, uncommon and culturally vital; as properly it’s ‘anti-technocratic’ (based on the designers). This may not have been potential with out the help of constructing info modelling.