STEEL - SINGAPORE SPORTS HUB (NATIONAL STADIUM ROOF)

At the heart of the Singapore Sports Hub is the new National Stadium, a state-of-the-art 55,000 seat sports venue, air-cooled for comfort and designed with a movable roof and retractable seating to support the widest range of sports and leisure events throughout the year. It will be the first stadium in the world custom designed to host athletics, football, rugby and cricket all in one venue, converting from one mode to another within 48 hours. With a span of over 310m, the National Stadium roof is the largest free spanning dome structure in the world.
For more information and pictures of this entry, click bit.ly/1lMrR4F.