Who suggested building five nails in the north of the bird's nest?

Cui Kai architecture. According to relevant data, five nails in the north of the Bird's Nest were designed by Cui Kai. The National Stadium (Bird's Nest) is located in the south of the central area of Beijing Olympic Park and is the main stadium of the 2008 Beijing Olympic Games. The building area is 258,000 square meters, which can accommodate 9 1 10,000 people.