"Green" is one of the concepts of Hangzhou Asian Games, and "no waste Asian Games" is an important connotation of "green Asian Games". How does the Hangzhou Asian Games implement the concept of "no waste" in venue construction? The "strong observation" column of People's Daily Online interviewed relevant experts.
The National Expo squash stadium of Hangzhou Olympic Sports Center is the squash competition venue of this Asian Games, with a total area of about 9504 square meters.
"The squash hall was rebuilt from the original 4D exhibition hall of Hangzhou International Expo Center, which maximized the use of the original facilities, equipment and machine rooms of Hangzhou Expo, and selected synthetic recyclable materials for construction materials." Fang Ming, president of the China Academy of Urban Planning and Design, said that after the end of the Asian Games, the venue could be demolished as soon as possible to restore the function of the original exhibition hall, Realize the seamless connection between the "Asian Games status" and the operating status of the exhibition hall.
It is understood that this Asian Games introduced the concept of "no waste" for the first time in history, and integrated it into the whole process of the preparation, holding and post Games utilization of the Asian Games. It is expected that the recycling rate of materials during the Hangzhou Asian Games will not be less than 50%.
Fang Ming introduced that the management of waste in the venue has been refined. From classified garbage cans that can measure the weight of garbage in real time and upload data to intelligent garbage classification systems, from refrigerators set up to store perishable kitchen waste to garbage collection points that can realize automatic air detection and automatic deodorization and disinfection, every piece of waste in the venue will be taken seriously.
Hu Guanglong, manager of the property management department of Hangzhou International Expo Center, said that the squash hall has achieved the goal of capturing the data of "other garbage" and "recyclables". Through the vertical comparison of the data of the previous day, corresponding management measures were taken in time to increase the sorting rate of garbage classification and improve the utilization rate of recyclables, so as to achieve the goal of "no waste".
The main stadium of Wenzhou Olympic Sports Center. Source: drawings provided by China Construction Eighth Engineering Division
Implement the principle of "no waste", and do not relax in the construction of new sites. The main stadium of Wenzhou Olympic Sports Center is one of the 12 new stadiums for the Asian Games. It is also the venue for some group matches and knockout matches of the football project of the Asian Games. It can accommodate 50000 people at the same time.
"In the design and construction of the venues, lightweight steel structures and energy-saving equipment are used, and variable frequency water supply systems, air source heat pump centralized domestic hot water systems, and rainwater recovery systems are set up. In addition, considering the operational flexibility of the combination of peace and competition, the primary pump variable flow system is used for air conditioning, and the variable frequency operation of air conditioning water pumps reduces the transmission energy consumption; After the game, variable refrigerant multi connected air conditioners are used to ensure flexibility. In terms of daily management and operation, we will comprehensively promote reduction, recycling and innocuity. " Ren Hongfan, the project manager of Wenzhou Olympic Sports Center Main Stadium of China Construction Eighth Engineering Bureau Shanghai Co., Ltd., introduced that the venue will have "no waste" elements throughout every detail. While retaining the original seats, making full use of the original building space, and realizing "can be changed but not built", it will also fully implement paperless tickets for the Asian Games, promote electronic registration, electronic office, and promote "bottle free action".
Implement "no waste", and do not compromise the architectural beauty. If you look at the south bank of the Qiantang River from a high altitude, the two Asian Games venues, the Hangzhou Olympic Sports Center Stadium and the Natatorium, look like a colorful butterfly flapping its wings.
Wang Wei, the project manager of the main stadium and natatorium of China Construction Eighth Engineering Bureau, said that the double-layer fishscale manganese aluminum alloy roof of the "butterfly" twin halls was dignified, elegant and unique in structure. There were more than 22400 single fishscale aluminum plates above the roof, and more than 950000 adapters in total. The allowable installation error should not be greater than 10 mm.
In order to achieve this goal, the project team made full use of BIM technology for numbering, and completed the construction of super large three-dimensional curved fish scale metal roof by developing the rapid installation process of "ground block assembly+roof assembly" of fish scale roof panels.
"The blessing of intelligent technology has played an important role in the construction of the environmental protection function of the" Huadie "twin pavilion." Wang Wei introduced that there are 210 light guide tubes above the pavilion, which diffuse the outdoor natural light to the interior through the top of the light shield. Compared with the fluorescent lamp, it has no advantages in stroboscopic, environmental protection and energy conservation. Its service life is up to 25 years, and it also has the opening and closing function, It can save about 100000 kilowatt hours of electricity every year.
(Editor in charge: Zhu Jiang, He Yingchun)
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