2021-11-13

Tap the wall and hear the sound of “Dong Dong”. Are the walls of the technical buildings of the two Winter Olympic venues hollow?

By yqqlm yqqlm

(Winter Olympics asked “Ji”) tap the wall and hear the sound of “Dong Dong”. Is the wall of the technical building of the two Winter Olympics competition venues hollow

Beijing, Zhangjiakou, November 13 (Xinhua) walking on the second floor platform of the technical building of the two centers (National biathlon center and national cross-country skiing Center), if you tap the wall, you will hear an obvious “Dong Dong” sound. Is the wall hollow? No, this is because the exterior wall decoration uses 20mm thick glass fiber reinforced concrete, commonly known as GRC board. Between it and the wall, a prefabricated steel keel and thermal insulation materials directly pasted on the wall are also installed to play a good thermal insulation role

GRC board is used for exterior wall decoration, which can realize large-area plate prefabrication. Each plate is designed independently, processed by factory customization and installed directly on site, which can effectively avoid building material loss and on-site pollution. At the same time, GRC board is used for exterior wall decoration, which is more waterproof and convenient for construction. Compared with plastering required for traditional exterior wall decoration, it avoids pollution and material waste caused by on-site sand and ash mixing

Tap the wall and hear the sound of “Dong Dong”. Are the walls of the technical buildings of the two Winter Olympic venues hollow?

the picture shows the technical building of the national winter biathlon center. Zhai Yujia’s

the internal partition wall in the building uses aerated concrete block bricks. This material has the advantages of thermal insulation, heat insulation, light weight, compression resistance, convenient construction and so on. The material is mixed with industrial waste fly ash as one of the raw materials to realize energy saving, land saving and waste utilization

“the technical building will be preserved as the Winter Olympic heritage, so the project is very key.” according to Li Zhenlong, the venue and infrastructure manager of the national cross-country skiing center, the technical buildings of the national biathlon center and the national cross-country skiing center adopt hollow glass curtain wall technology, which is convenient for judges and technical officials to observe the stadium. It also meets the requirements of the venue for wind pressure resistance, water tightness and air tightness. While thermal insulation, it can also reduce the air conditioning load and energy consumption. (compiled by Zhao Danmei)