The center court has a unique "magnolia petals" that can open the roof.

When the roof is closed, it becomes a fully enclosed indoor competition hall. When the roof is opened, the open area reaches more than 7,000 m².

The roof is a giant steel structure, and its opening method is the first in the world to open and close. Its huge openable roof symbolizes the blooming of Shanghai's city flower, the white magnolia.

The main stadium's openable roof has a maximum area of ??more than 15,000 m2. The upper part is composed of 8 petal-shaped roofs. The longest point of a single piece is 71m, the widest point is 46m, and the highest point is 7m. Each piece is a mesh-shaped truss.

structure.

Each "petal" has an area of ??nearly 2,000 square meters and weighs nearly 200 tons. The time it takes for the roof to open once is about 7 minutes and 30 seconds.

The 8 roofs can be opened and closed at the same time by the driving device, which is just like the magnolia flower in bloom in Shanghai, which is spectacular.