国产精品毛片在线视频

National speed skating hall construction project
"China plan" creates outstanding "Winter Olympics project"

The national speed skating hall, also known as "ice ribbon", takes "ice" and "speed" as design symbols. It is the landmark venue of Beijing 2022 Winter Olympic Games and the only newly built ice competition venue. During the Winter Olympic Games, it undertakes the competition and training of speed skating. "Ice ribbon" has achieved innovation and breakthrough in design concept, technology, material selection, construction techniques and other aspects, forming a "China Program" with various scientific and technological highlights and international reference.

Panorama of effect picture

Effect picture night scene

The national speed skating hall is the first venue to realize PPP cooperation between government and social capital under the bidding of municipal major office. In February 2018, Beijing state owned assets company, as the representative of the government investor of the national speed skating Pavilion project, and social capital such as shoukai shares, urban construction group, Zhuzong group and huati group, were established to start the construction of the national speed skating hall project. The main hall of the national speed skating hall covers an area of about 80000 square meters, with 2 floors underground and 3 floors above the ground. There are two underground parking spaces in the East and West. There are about 12000 spectator seats during the game and 8500 after the game.

The 198m long and 124m wide roof cable net structure of national speed skating Pavilion is the largest single-layer bidirectional orthogonal cable net structure in the world. With the wisdom of all parties and the efforts of all parties, the speed skating Pavilion successfully completed the tensioning of the largest span single-layer bidirectional orthogonal saddle shaped roof cable net structure in less than two years, filling the first large tonnage and large-area single-layer orthogonal cable net synchronous tensioning technology gap in China.

The steel structure of the national speed skating hall consists of three parts: the rigid structure, the steel ring truss and the cable net structure. The steel consumption is 14000 tons. All of them use domestic high vanadium closed cables. The steel consumption of the roof system is only about one fourth of that of the traditional roof, reaching the international leading level, which truly embodies the concept of "green Olympic Games". In 2019, the national speed skating hall won the highest award in the domestic steel structure industry - "China steel structure gold award outstanding project of the year".

The national speed skating hall adopts full ice design, with 12000 square meters of ice, the highest in Asia. At the same time, as the first in the history of the Olympic Games, the ice making system using carbon dioxide transcritical direct evaporation refrigeration has become the world's first speed skating stadium using natural working medium carbon dioxide as refrigerant.

In the future, in the long-term sustainable development of Olympic venues, the national speed skating hall will be built into a new type of urban sports complex with ice and snow sports as the core to comprehensively promote the national fitness and sports consumption, and strive to become a new coordinate to meet the people's yearning for a better winter life.

Completed in June 2018   Structural construction Workers, "Ice ribbon" completes "intensive cultivation"

Completed on the ground in September 2018 mix Concretion Structure, "Ice ribbon" and "rising from the ground"

April, 2019 month "Ice ribbon"“ "Sky curtain" woven

April, 2019 month "Ice ribbon" ushers in "ribbon flying"