The largest professional group of designers in the world with 27,000 members announced it was awarding its Supreme Award for Structural Engineering Excellence -- one of the most prestigious accolades -- to the Singapore Sports Hub.

The Institution for Structural Engineers made the announcement on Nov. 14, 2015.

Designed by DP Architects, AECOM, and Arup, the Sports Hub is recognised for its architectural and engineering achievements, as it spans 312 metres, is 80 metres high, consists of 15,000 tonnes of steel structure and has a 70,000-sq-metre surface.

In human terms, where people look like ants on the roof:

It took 4,000 workers 45 months to finish building, making it the largest dome ever built.

But it is the movable roof superstructure that gets engineers priapic with excitement.

With its capacity to open and close in 20 minutes, the roof of Singapore's new National Stadium comes in two parts.

The uppermost lightweight super-structure made of two pieces that run down the sides of the main 9,000-tonne steel traditional roof superstructure that’s locked in place:

Besides, the superstructure is embedded with 20,000 LEDs so it can act like a giant screen too.

The seating inside the stadium can also be adjusted using huge hydraulic lifts that add and subtract seats.

H/T Gizmodo

Top photo via Gizmodo via DP Architects

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