“Bird’s Nest” renovation project completed, landscape lighting achieves 30% energy saving_Travel Channel_中国青年网

On the 28th, the Beijing Major Office officially announced the official announcement: As the final work of the Beijing Winter Olympics project, the National Stadium “Bird’s Nest” renovation project, which is responsible for the opening and closing ceremonies of the Beijing Winter Olympics and the Winter Paralympics, was completed. . A reporter from Beijing Youth Daily learned that the renovation and upgrading of the Bird’s Nest involves four aspects and a total of 37 sub-items, including the upgrading of barrier-free facility systems, audience service facility systems, landscape lighting systems, and other facilities and equipment systems. The equipment and facilities of the Bird’s Nest have been renewed, the environment has become beautiful, and the gorgeous turn from “summer” to “winter” has been realized.

It is reported that in order to serve the 2022 Beijing Winter Olympics, under the guidance of the Beijing Major Project Office and Beijing State-owned Assets Corporation, the National Stadium “Bird’s Nest” fully launched various renovation tasks in April last year and was officially completed on October 28 this year.

According to Xiang Jun, party secretary and chairman of the National Stadium Co., Ltd., “This transformation reflects humanistic care everywhere.” In terms of system transformation and upgrading of barrier-free facilities, it involves barrier-free elevators, ramps, toilets and other service facilities. “For example, the entrance and exit of the bathroom have been widened, and the wash basin has also been enlarged; 18 barrier-free elevators have been updated, and stainless steel mirrors have been added to the elevator cars so that the audience can see the situation behind them from any angle. And increase the armrest operation panel, lower the position of the emergency call button.” Xiang Jun said. In addition, add children’s toilet washers, children’s step stools, and height-adjustable multifunctional storage tables in 101 barrier-free toilets of the existing stadiums to create a safe, smooth, applicable and humanized barrier-free environment. The Bird’s Nest has built a barrier-free ramp on the northeast side of the perimeter base of the stadium; the audience seats in the stadium will determine the proportion of wheelchair seats according to the number of people, and the barrier-free seats in some areas will be encrypted.

In terms of audience service facilities, the performance will be warmer through renovation and upgrading. The Bird’s Nest has installed electronic screens of different sizes in the audience area, and 90 small and medium electronic screens surround the stand area, presenting a clearer viewing effect. In addition, the Bird’s Nest has added 128 warm water direct drinking fountains in the grandstand distribution area. “Because the event is in the winter, each stand will provide the audience with warm water direct drinking water service, which can meet the drinking water demand of 40,000 to 50,000 spectators, and has the ability to supply outdoor warm water in winter.” Xiang Jun said. The bathroom sink in the audience area can also provide hot water service, allowing the audience to truly experience the temperature of the bird’s nest.

Energy-saving and low-carbon is the new label of the Bird’s Nest. According to reports, the National Stadium reformed the landscape lighting system. On the basis of making full use of the original equipment and pipelines, the original traditional attenuated light sources were replaced with high-standard LED lamps. The roof PTFE membrane, the facade steel frame and the red wall of the stands The brightness, uniformity, glare point and exposure point of the camera have been improved. After the transformation, it can be controlled by the operation mode to achieve 30% energy saving effect. At the same time, color-changing floodlights can be used to present more diversified lighting effects according to the needs of different time periods, creating iconic city night view business cards. The air-conditioning system transformation adopts advanced intelligent cloud multi-connected air-conditioning to achieve high efficiency and energy saving.

At the same time, the Bird’s Nest has further upgraded other facilities and equipment. “The Bird’s Nest was completed in 2007 and has been in operation for more than ten years so far. This transformation and upgrading has invested a lot of manpower and material resources to update and upgrade the original facilities and equipment to enhance the reliability of the stadium’s operation. “Xiang Jun said. For example, all sound reinforcement systems in venues and auditoriums have been upgraded and transformed, using a total of 244 latest linear array technology speakers, new constant-voltage speakers, digital power amplifiers and other equipment. It is reported that these devices are all domestic products with independent intellectual property rights, and achieve a maximum sound pressure level of 10dB higher than the national standard, and the sound transmission gain and speech intelligibility meet the requirements of national performance-level venues. Complete the replacement of stadium thermal station equipment and radiators, and improve the operational stability of the stadium thermal system.

A reporter from Beijing Youth Daily learned that after the renovation of the Bird’s Nest is completed on October 28, detailed polishing and debugging will continue in the next 2 to 3 months. During the Winter Olympics, the Bird’s Nest will open a brand new intelligent service and transform into energy saving. Smart venues that reduce emissions provide better viewing experience and services for Chinese and foreign guests and all spectators.

  RAM

  Bird’s Nest Annual Stadium

  Utilization rate exceeds 85%

The National Stadium (Bird’s Nest) is the main stadium of the 29th Summer Olympic Games. It is located in the central area of ​​Beijing Olympic Park. It covers an area of ​​20.4 hectares with a construction area of ​​258,000 square meters and can accommodate 91,000 spectators. The Bird’s Nest started construction on December 24, 2003 and was completed on June 28, 2008.

After the Summer Olympics ended, the Bird’s Nest has been in use. The data shows that the annual venue utilization rate of the Bird’s Nest is over 85%. As of the first half of 2021, more than 320 large-scale competitions with more than 10,000 people have been held. In 2022, the Bird’s Nest will also undertake the opening and closing ceremonies of the Beijing Winter Olympics and the Paralympic Winter Games. It will become the only main venue in the world that has undertaken the opening and closing ceremonies of the Summer and Winter Olympics.

  Other highlights

  National Speed ​​Skating Stadium

  The equipment and facilities are operating well during the test competition

Yesterday, the National Speed ​​Skating Stadium, which passed the “examination” of the test competition to the north of the Bird’s Nest, also appeared simultaneously. A reporter from Beijing Youth Daily learned that from October 8th to 10th, the National Speed ​​Skating Hall “Ice Ribbon” held a new round of test competition for the Beijing 2022 Winter Olympics. The equipment and facilities of the National Speed ​​Skating Hall , Has also been fully tested. The relevant person in charge of the National Speed ​​Skating Stadium said in an interview yesterday that during the test competition, all equipment and facilities operated well, and the unparalleled ice surface also received unanimous praise from athletes from home and abroad.

The National Speed ​​Skating Stadium project is located on the northwest side of the South Park of the Olympic Forest Park, adjacent to the National Tennis Center to the north, Olin West Road to the east, and Lincui Road to the west. The venue has about 12,000 seats and a building height of 33.8 meters. During the Beijing 2022 Winter Olympics, it will undertake speed skating competitions. Because its façade is assembled by 3360 curved glass units, each piece of glass has a different curvature. At the same time, there are 22 high-to-low glass hovering outside the curtain wall, which is like a ribbon that is floating around. It is affectionately called by everyone. It is the “Ice Ribbon”.

According to Zhang Shaohui, general manager of Beijing National Speed ​​Skating Stadium Operation Co., Ltd., the single-layer bidirectional orthogonal saddle-shaped cable net structure roof of the National Speed ​​Skating Stadium is the largest all-ice surface in Asia and is the first to use the world’s most environmentally friendly carbon dioxide system on a large scale. Ice technology, etc., are at the forefront of the current sports building design and construction in various professional fields. Among them, the most commendable is the ice surface.

“During the past test competition, many domestic and foreign athletes have achieved good results, and they have praised the state of the ice surface continuously and are very satisfied.” Zhang Shaohui said. As it has passed the test of the test competition, the National Speed ​​Skating Stadium is ready. Inside the speed skating hall, a reporter from the Beijing Youth Daily noticed that the ice surface showed a white and transparent effect against the light. The toilets and rest areas inside the venue have been properly placed, clean and clean.

Zhang Shaohui told the reporter of Beiqing Daily that the “Ice Ribbon” adopts an all-ice design, with an ice surface area of ​​about 12,000 square meters, which is currently the largest ice surface in Asia. At the same time, the ice surface adopts a sub-module control unit, which divides the ice surface into several areas, and makes ice according to the sub-area and sub-standards of the competition event. In other words, in the subsequent use of the stadium, the ice surface can also hold short-track speed skating, curling and other activities. In the following operation period, different ice conditions will be provided for different mass operations.

It is worth mentioning that in all-ice stadiums, because of the “special” air-conditioning control system, the temperature of the ice surface and the audience seating area for the athletes are not the same, and the audience will not feel cold when watching the game. Athletes will not feel hot during exercise.

In terms of environmental protection, “Ice Ribbon” also adopts carbon dioxide transcritical direct cooling ice making technology. It is the world’s largest carbon dioxide transcritical direct cooling ice making system and the world’s first Winter Olympic venue to use this technology for cooling.

The carbon dioxide transcritical direct cooling ice making technology is one of the most advanced, environmentally friendly and efficient ice making technologies for winter sports venues. Its application can not only provide a highly balanced ice surface for the Winter Olympic Games, but it can also make the national speed skating stadium carbon emissions close to zero. Zhang Shaohui introduced that not only that, but the heat generated by ice making can also be recovered to save electricity and energy.