[UFO stamping] 2021 Universiade Dongan Lake Stadium steel structure capped

Zhongxin.com: With the completion of hoisting of the "k" unit, the hoisting of the large steel structure of the main stadium of the 31st World University Games-Dong'an Lake Sports Park Stadium was completed. Roofing and other multi-professional cross construction operations.

The project was invested and constructed by China Resources Land. The installation company of China Construction Second Engineering Bureau was responsible for the construction of the steel structure and metal roof. The project has a total construction area of 120,000 square meters and a building height of 50 meters. It can accommodate an audience of 40,000 people and uses 14,000 tons of steel, which is equivalent to two Eiffel Towers.

Due to the complex structure of the stadium, more than 19,000 steel structural members are required, involving more than 70 types of cross-sections, and the roof is up to 50 meters. The risk of working at height is huge. After comprehensive analysis using the BIM model, the project team innovatively adopted the construction method of “building blocks”, splitting the entire steel structure body into modules of different sizes, after welding and assembling on the ground, and using large-scale lifting equipment for overall lifting. Bit. This technology not only greatly reduces the difficulty of installation and construction, but also improves quality and safety, and shortens the construction period more effectively.

The stadium is also special in that its roof is about 46 meters wide, with a total area of 27,000 square meters, representing the sun god bird pattern of the essence of the ancient ancient Shu culture. "UFO" meets "Shenbird", which implies the perfect fusion of tradition and modernity, and reflects the urban development concept of Chengdu's interdependence and mutual promotion of inheritance and openness, which adds another touch to the "UFO" full of science and technology. Mysterious.

In order to ensure the beauty of architectural design and structural safety at the same time, the steel frame is perfectly integrated with the metal roof and glass curtain wall, drawing inspiration from the "bird's nest" structure, and adopting a combination of vertical cross grid and flat cantilever truss. It is also the first time this kind of structure has been used in large-scale stadiums in China.

In the next step, the stadium will enter a multi-disciplinary cross-construction stage such as metal roofing. It is expected that the metal roof will be closed by the end of May.