[Commentary] A few days ago, the steel structure of the National Ski Jumping Center of the Beijing 2022 Winter Olympic Games venue was successfully unloaded. At the same time, the main structure of the Bingyuhuan project, which connects the ski jumping center with the biathlon center and cross-country skiing center, also smoothly passed through.
[Explanation] The National Ski Jumping Center is the competition venue with the largest amount of engineering and the most technical difficulty in the Zhangjiakou area of the Beijing Winter Olympics in 2022. The gap between the top and bottom of the venue is more than 160 meters, and the appearance is like a symbol of ancient Chinese auspicious ornaments-Ruyi, so Named "Xue Ruyi", the project was undertaken by China Railway Construction Engineering Group.
The "Xue Ruyi" steel structure has a diameter of 78 meters and a hollow inner circle of 36 meters in diameter. It is about half a football field large. During construction, 39 tire frames are used as temporary supports, and the highest one is about 37 meters. The project team used tower cranes for high-altitude assembly and installation. It took 418 days to complete the steel structure installation. This unloading successfully separated the support tire frame from the steel structure body. "Snow Ruyi" no longer uses the support to stand on its own.
[Same period] Xi Xiaodong, Project Executive Manager of National Ski Jumping Center
The National Ski Jumping Center started the work of unloading the steel structure at 4 am on June 10, then divided into seven steps, which lasted up to ten hours and officially completed the unloading of the steel structure at 2.24 pm that day. In one step, the 39 temporary supports behind me, which are commonly known as tire frames, will take about 20 to 25 days to complete the entire demolition work. The next step is the decoration of the Peak Club.
[Explanation] While the "Snow Ruyi" steel structure is unloaded, the elevated pedestrian walkway used to connect the three venues of the National Ski Jumping Center, Cross-Country Skiing Center, and Biathlon Center-the "Bingyuhuan" sightseeing corridor project, also On June 12, the last steel beam was capped to achieve full penetration.
[Same period] Yang Dashan, site leader of Bingyuhuan Project
The project of Bingyuhuan was started on June 1, 2019. As of today, it is a total of 377 working days. At present, it has reached the top of the main structure steel structure. Next (we will) carry out renovation work, such as railing This type of decoration works to protect the safety of the audience.
【Explanation】It is understood that currently 36 projects of 76 venues and supporting infrastructure of Zhangjiakou in Beijing 2022 Winter Olympics have been completed, and the remaining 40 projects under construction will be completed within the year.
Huangfu reports on Zhangjiakou, Hebei
Editor in charge: [Wang Kai]