Venue structure of Beijing National Olympic Center Stadium

Building structure

The Olympic Sports Center Gymnasium was designed and built in the 1980s and has poor energy conservation. In this renovation and expansion, a layer of external insulation structure was added to the entire exterior wall of the building, and the doors and windows were replaced with thermal insulation doors and windows. The advantage of this design is that it increases the thermal insulation performance of the entire building and reduces energy consumption during post-match venue operation. The building's energy saving also complies with Beijing's latest 65% building energy saving requirement.

The roof of the Olympic Sports Center Gymnasium was originally made of metal sandwich panels, and its waterproof and thermal insulation properties were difficult to meet the requirements of the venue. During the renovation and expansion, it was replaced with the same aluminum-magnesium-manganese panels as the roof of the National Center for the Performing Arts. The advantages of this material are high strength, durability, corrosion resistance, and easy construction.

Natural ventilation and natural lighting

The main entrance to the south hall of the Olympic Sports Center Gymnasium was originally relatively narrow. Under reconstruction and expansion, this has become the highlight of the entire building. The hall was replaced with a roof with an integral glass roof, local natural ventilation and natural lighting. Yang Zhou said that such renovation maintains the original architectural style and adds a sense of modernity.

The seats in the competition hall are unique

When you walk into the competition hall of the renovated and expanded Olympic Sports Center Stadium, you will find a kind of lavender seats that are rare in all venues in Beijing covering the stands. . It is a challenging design in stadium design to use uniform color seats in all stands. Because people have become accustomed to stadium seats in various bright colors. For venue management, different colored seats can help with zoning. In the design of the Olympic Sports Center Stadium, the focus of the entire venue is reserved for the competition field. Therefore, brightly colored seats should not distract people's attention. Moreover, the combination of lavender seats and the exquisite gray color of the venue will create a very elegant atmosphere in the venue. When the game starts, athletes standing in the center of the field will see spectators of various hair colors and skin colors watching and cheering for them against a lavender background.

Ramp for barrier-free facilities

During the Paralympic Games, the Olympic Sports Center Gymnasium will undertake the training tasks of multiple disabled sports teams. The gymnasium meets the requirements of the Beijing Olympic Organizing Committee for barrier-free facilities. Barrier-free ramps can lead directly from the outside to the auditorium, and barrier-free toilet facilities for disabled people have also been equipped.

The functional rooms are unique

The newly built area of ??4,410 square meters during the renovation and expansion of the Olympic Sports Center Gymnasium is mainly functional rooms on the first floor on the south side of the gymnasium. The newly built buildings are mainly used for competition, training, media, spectators, security and competition operation needs during the Olympic Games. The construction of this part of functional housing also solved the problem of space utilization in the Olympic Sports Center after games. The newly built functional rooms can meet the needs during the game through simple internal separation, and after the game, they can be easily transformed into service areas in the Olympic Sports Center venue complex.

Green is all around you

There are several ginkgo trees and other evergreen trees in the Olympic Sports Center complex, and these green vegetation were preserved as much as possible during the renovation and expansion. During the renovation and expansion, the construction team consciously avoided these green vegetation when digging earth, and sent special personnel to water and maintain the vegetation every day, so that the green vegetation could be retained in place.

After the renovation and expansion, the street lights in the park use solar energy, and the gray water can be recycled through the recovery system.

The interior decoration is fashionable and simple

The modern aluminum-magnesium-manganese plate roof, the romantic competition hall, the spacious and bright audience hall... Enter the Olympic Sports Center Gymnasium , people are immediately attracted by this modern beauty that combines strength and softness. Walking into the main entrance of the south hall of the gymnasium, the redesigned and constructed south hall gives people the feeling of walking into the internal structure of a huge building, full of novelty. The minimalist design style with no suspended ceilings and an unobstructed view of the building equipment not only makes the entire hall simple and elegant, but also makes everyone who walks in here feel at home and comfortable.

Wear a cotton-padded jacket for roof insulation

According to reports, a new layer of external insulation has been added to the outside of the gymnasium building, which is equivalent to putting a small cotton-padded jacket on the building. The insulation performance of the wall reduces energy consumption during future operation.

It turns out that the roof material is a metal sandwich panel, and its waterproof and thermal insulation properties are difficult to meet the needs of the venue. Moreover, due to long-term exposure to the sun, the roof often undergoes "deformation" of thermal expansion and contraction, especially at 9 a.m. every day. At 10 o'clock and from 4 to 6 p.m., people entering the stadium will hear loud "bang bangs" from the roof, which affects the athletes' competition and is not conducive to the audience's enjoyment of the game. Now the roof materials have all been replaced with aluminum-magnesium-manganese panels, which are the same waterproof materials as the China Grand Theater roof. They are also designed and installed with combined functions such as thermal insulation and sound absorption to improve the functions of the roof.

High-tech protection

During the interview, the reporter learned that many new materials and technologies have been used in the Olympic Sports Center Gymnasium. For example, the suspended sound absorbers used have a fabric surface layer with extremely strong fire resistance, which meets both sound absorption requirements and fire protection requirements. VRV air conditioning system and central air conditioning system are comprehensively used, and two sets of return air conditioning systems are set up in the venue. The wind system not only ensures the different comfort requirements of the athlete area and spectator area, but also facilitates the operation after the game is open to the public, saves energy consumption and reduces operating costs; at the same time, it also adds a building automatic control system, a mobile phone signal enhancement system, Monitoring system, access control system, integrated wiring system, LED display system, etc.

Functional division highlights humanity

The plan shape of the Olympic Sports Center Gymnasium is hexagonal. On the north side of the first floor are VIP rooms, security guards and working rooms for journalists. The second floor is the audience entrance and lounge. The east and west sides of the third floor are the time scoreboard and office lounge.

In addition, the Olympic Sports Center Gymnasium also fully considers functional zoning and traffic flow lines of users in each functional area in its operation design. According to different users and nature of use, various groups of people are stratified as much as possible. The zones do not intersect with each other, and the traffic flow is smooth, convenient, reasonable and smooth, which meets the operational design requirements of the Olympic Games and also facilitates the operation, management and use of the stadium after the games.

Environmental protection is everywhere

In order to save water resources, the project department established wastewater treatment facilities such as sedimentation tanks at the construction site to collect rainwater and domestic wastewater in a timely manner to achieve secondary Utilization, the water currently used by the project department to flush toilets and spray dust on site is this kind of treated water. The project department also quantitatively managed the construction team's water use, installed water meters in each external construction team's water use area, measured the construction water consumption of each team, and formulated each team's water use indicators and corresponding measures based on the actual construction conditions. Reward and punishment measures will be provided to teams that make savings, and teams that use excessive amounts of water will be punished by paying out-of-pocket for the excess. According to preliminary calculations, after changing the management method, the project department can save 400 tons of water per month.

In order to reduce noise and dust, during the renovation and demolition process of the venue, the project department changed the traditional construction sequence from outside to inside, retaining the peripheral glass curtain wall and dismantling the facilities inside the venue first. , and finally the outer curtain wall was demolished. The original glass curtain wall effectively prevented the spread of noise and dust.

In order to reduce dust during on-site construction, we designed and produced a sprayable water curtain using scrap steel pipes, which not only saves water resources, but also moisturizes and reduces dust on site at any time. In addition, the project department maintained the original flowers and trees on site during the renovation of the venue, and further greened the areas that can be greened.

Invisible protective nets ensure spectator safety

Behind the white goals on both sides of the field, two black protective nets 24 meters long and 8 meters wide are very eye-catching. Competition director Li Zhiwen said: “The reason why these two nets are pulled up behind the goal is because the handball event is a fast-break game. Pulling up the protective net can make the goalkeeper more quickly when the shot misses. Get the ball and continue playing; on the other hand, it can also prevent players from hitting the ball too hard and causing the ball to fly towards the audience and injure the audience.

We chose to use a black protective net because the black net not only It can be distinguished from the white goal and does not interfere with the athletes' sight. Moreover, during the TV broadcast, the audience cannot see this net on the TV screen. It can be said that this black net is an invisible protection. net.

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Addition of subwoofer equipment in the venue

The sound amplification system in the venue has also been transformed. The original amplification system was a single one, while the modified one is composed of It consists of the main sound amplification system and mobile audio auxiliary equipment for the venue and auditorium. It is particularly worth mentioning that the addition of subwoofer equipment to the competition venue, coupled with the original sound absorption equipment in the venue, the acoustics of the renovated competition hall It is comparable to the concert hall. ”

Post-game function

It can meet the requirements of various domestic sports competitions and can undertake international competitions. It is an important part of the national sports competition center and the national team. Training base