China News Service, Chengdu, August 18 (Reporter He Shaoqing) On the 18th, the 31st Summer Universiade (hereinafter referred to as the "Chengdu Universiade") main stadium in the Dongan Lake Sports Park, Chengdu, is composed of 12540 pieces of colored glass on the top of the main stadium. The composition of the "Sun Bird" pattern "fly" on the roof, the "Sun Bird" gold ornaments have been magnified nearly 2.7 million times to complete the puzzle with the largest "Sun Bird" pattern in history.
The main stadium of the Chengdu Universiade under construction. Photo by Zhang Lang
It is understood that the Chengdu Universiade is the third time that China has hosted the Summer Universiade for University Students after the 2001 Beijing Universiade and the 2011 Shenzhen Universiade. It is also the first time Western China has hosted a world comprehensive sports meeting. The Chengdu Universiade will be held from August 18 to 29, 2021. There will be more than 10,000 athletes from about 170 countries and regions participating.
As the main stadium for the opening and closing ceremonies of the Chengdu Universiade, the Chengdu Dong'an Lake Sports Park Stadium has a construction area of about 120,000 square meters, and its appearance is a sci-fi "flying saucer" shape. The "sun bird" pattern on the glass roof of the stadium of about 27,000 square meters is derived from the iconic cultural relic unearthed at the Jinsha site in Sichuan in 2001. It is composed of four equally spaced birds.
In order to make more than 10,000 pieces of glass into the "sun bird" pattern with as little error as possible, the construction party used BIM technology combined with smart construction technologies such as three-dimensional scanners, line robots, and smart QR codes to accurately collect data. Parametric design orders, accurate numbering, and online management of the entire process of materials.
"After the main stadium is completed, the steel structure is not visible in the pattern during the day, and the light is not visible at night, and the pattern of the'sun bird' is still clearly defined." Zhong Jie, the curtain wall project manager of the Oriental Decoration Stadium subordinate to China Construction Decoration Group, the participant of the Universiade main stadium, introduced Since the opening ceremony of the Chengdu Universiade is held at night, the main venue of the Chengdu Universiade has cleverly used design and materials to achieve a natural rendering effect of light and shadow.
Zhong Jie introduced that at this time in Chengdu, the temperature on the top of the daylight can be as high as fifty or sixty degrees on a sunny day, which is a severe test for the construction of workers. The method of multiple shifts is adopted to avoid high-temperature construction as much as possible. Workers will start working again after three o'clock in the afternoon. With the advent of the flood season, the glass surface is smooth in rainy days, and workers are likely to fall and cause danger. The project department insisted on prohibiting the construction of the roof within one and a half hours after raining and clearing the sky to ensure that the roof can only be climbed after the water vapor on the top of the daylighting roof has dispersed. Before operation, the water on the glass surface must be cleaned up before normal construction.
The main stadium of the Chengdu Universiade under construction. Photo by Zhang Lang
"This project is a challenge for me. It requires particularly high construction technology and quality control, and there is no experience to learn from." Li Tianliang, 55-year-old main stadium curtain wall project quality director, said that he requires every process to be at least After three inspections, the person in charge was present within five minutes after the problem was found, and the problem was solved whenever the problem was found.
It is understood that the main stadium of the Chengdu Universiade consists of "one game and three halls". Among them, 40,000 main stadiums are responsible for the opening and closing ceremonies of the Universiade; 18,000 multi-functional gymnasiums are responsible for the functions of the Universiade gymnastics competitions; 4,500 swimming and diving halls are responsible for the functions of the Universiade swimming competitions; (Finish)