Venue: Wukesong Gymnasium
Construction site: Wukesong Cultural and Sports Center
Commencement time: March 29th, 2005.
Construction period: started in March 2005 and completed in August 2007;
Building area: 63,000 square meters
Games-time function: basketball
Post-game function
Including Wukesong Gymnasium, Wukesong Baseball Stadium, cultural and sports facilities and supporting commercial facilities as public services, it is an important place to meet the commercial, cultural, sports and leisure needs of community residents in western Beijing.
Brief introduction of venues
Wukesong Gymnasium is the key construction project of Wukesong Cultural and Sports Center, with a building scale of 63,000 square meters and an audience capacity of about 6,543,800+8,000.
The construction of Wukesong Gymnasium is an important milestone in Beijing's preparations for the Olympic Games, which indicates that the construction of Beijing Olympic venues is actively and steadily advancing.
After the game, it mainly undertakes basketball games, and all kinds of large-scale basketball games at home and abroad will be considered here.
technical requirement
(1) Area, height, number of seats and number of floors
Area: 61591m2; Seat:17754; Number of floors: underground 1 floor, 6 floors above ground; Height: 27.86 meters.
(2) The main structure system of the gymnasium:
Cast-in-situ reinforced concrete frame-shear wall structure is adopted below the second floor, and the wall of elevator machine room, pipe shaft and frame beam and column form the frame-shear wall structure system. Due to the requirement of building function, only a few shear walls can be arranged above the second floor. In order to ensure the overall stiffness of the superstructure, eight inter-column supports are arranged along the perimeter of the building from the second floor to the lower chord of the roof truss. The cast-in-place reinforced concrete frame-shear wall-steel support structure system is formed.
(3) The roof structure system of the competition hall.
The axial span of the roof of the competition hall is120×120m, and the roof structure is supported on 20 columns arranged along the periphery of the building. According to the architect's requirements for roof structure layout, a bidirectional orthogonal truss system is adopted. In order to reduce the weight of the structure, the steel structure is adopted, and the roof is made of metal roof panels. Adopt pronunciation.
In order to make the stress of the roof structure system more reasonable, the trusses in both directions are made in the form of variable height. The height of the mid-span truss is 9.3 meters, and the height of the truss at the bearing is 6.3 meters. ..
(4) Foundation and foundation
Natural foundation scheme is adopted. Based on the characteristics of this project, the axial force of each vertical load-bearing member is very different and the span is also different. Therefore, according to the actual situation, it is proposed to adopt strip foundation under column, independent foundation under column, strip foundation under wall and local raft foundation respectively. Using waterproof board to solve the problem of building waterproof.
(5) Introduction content of equipment specialty
The gymnasium is equipped with water supply, drainage, domestic hot water supply, reclaimed water and fire water supply systems; And heating, central air conditioning, mechanical ventilation and mechanical smoke control system.
Form of cold and heat source: electric refrigeration and urban heating network are used to provide the required cold and heat for the whole building. The main engine room of cold and heat source is located on the underground machine room floor, and the cooling tower is located under the outdoor ground. Roof rainwater is collected and stored in an outdoor underground pool for outdoor greening. The circular driveway is equipped with a lift pump for drainage.
The competition hall is equipped with automatic fire monitor fire extinguishing system.
All-air air conditioning system is used in the competition hall and audience lounge, and air supply is provided under the audience seats in the competition hall; Other air-conditioned rooms are fan coil unit+fresh air system; Individual weak current computer rooms are equipped with split air conditioners.
According to the fire performance analysis and specification requirements, mechanical smoke control and exhaust systems are set up in darkrooms and inner walkways such as competition halls, audience lounges, restaurants and shops, and positive pressure air supply systems are set up in smoke control stairwells and walkways outside sponsors' boxes.
(6) Description of electrical specialty
The high voltage part includes: power load grade and classification, high voltage 10KV system and relay protection, low voltage distribution and diesel generator subsystem, lighting, trunk laying, lightning protection and grounding protection system.
The weak current system includes the following contents: satellite receiving and cable TV system, integrated wiring system, building equipment monitoring system, safety protection system, integrated management system, timing and scoring system and scoring processing system, conference, sound reinforcement system and fire fighting system.
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As one of the most important projects in the optimization and adjustment plan of Olympic venues, the design modification of Wukesong Gymnasium of Olympic Basketball Stadium has attracted wide attention. Under the guidance of the principle of "Thrift Olympics", Wukesong Gymnasium has been greatly reduced in cost, construction difficulty and safety performance after optimization design.
The optimized Wukesong Gymnasium cancels the commercial supporting facilities on the upper part of the original gymnasium and the four large screens on the facade, and the construction area is reduced from the original 1 19000 square meters to 63000 square meters, and the steel consumption is reduced from nearly 50000 tons to 4000 tons. In addition, the competition floor of the stadium has been raised by nearly 8 meters, the entrance of the audience hall has been raised to the ground, and the circular driveway, sinking square and tunnel have also been simplified. The adjusted Wukesong Gymnasium is expected to save more than 500 million yuan.
"Scheme optimization" not only simplifies the function of Wukesong Gymnasium, saves the cost, but also brings benefits to architectural design. The Wukesong Gymnasium with simplified functions can accommodate 1.8 million people, which is the same as the first and second gymnasiums, but smaller. If the site is large, it is more difficult to control reverberation time, and it is much easier to control various sound fields, such as sound absorption and sound insulation, with better effect. In this way, if you want to hold a concert or conference in the future, the sound conditions inside will be much better.
Another advantage of small is energy saving, which is easy to understand. For example, air conditioning is a very energy-consuming part of sports venues. With the same air conditioner, the power consumption of a room of 50 square meters is definitely much less than that of 100 square meters.
Venue characteristics
There is a "barrel screen" in the center of the stadium.
Wukesong Gymnasium will become one of the few competition venues specially designed for basketball in China, and this feature is reflected in many aspects such as competition venues, stands, players' locker rooms and so on. The most special thing is that Wukesong Gymnasium plans to draw lessons from the advantages of American NBA venues and set up multiple large screens on site, which will help to create a hot stadium atmosphere.
At present, the general stadiums in China only have big screens at both ends of the stadium to broadcast the game scenes live. Wukesong Gymnasium plans to keep the TV screen on the outside of the stadium, and set up a "barrel screen" over the center of the stadium according to NBA venue standards, with a large screen with an area of about 13 square meter on each side, which can not only play the game, but also play the tidbits of the audience and players.