Introduction of the 28 Olympic Games Hall (Bird's Nest)

The external structure of "Bird's Nest" is mainly composed of huge portal steel frames, with 24 truss columns, and 2 truss columns and 2 lower columns have been hoisted. In addition, the hoisting of the main truss in the inner ring of the roof and the installation of the facade substructure have been fully launched. The thickness of steel used in the "Bird's Nest" steel structure can reach 11 cm, which has never been produced in China before. In addition, a translucent film will be pasted on the outer surface of the grid structure at the top of the "Bird's Nest". After using this film, the light in the stadium is not direct, but diffuse reflection, which makes the light softer. The diffused light can also solve the maintenance problem of the lawn in the stadium, and also has the function of sheltering the seats from the wind and rain.

Many people who have seen the design model of the "Bird's Nest" describe it as a warm bird's nest woven from a stadium with a capacity of 1, people with a branch-like steel net! The "nest" used to nurture and care for life is entrusted with human hopes for the future.

The components of the whole stadium structure support each other, forming a grid-like framework, which looks like a bird's nest woven from branches. Its gray mineral steel mesh is covered with transparent membrane material, which contains an earthy red bowl-shaped stadium stand. Here, the hollowing-out technique, the lines of ceramics, the brilliance and enthusiasm of red in China traditional culture are perfectly integrated with the most advanced modern steel structure design.

The whole building is connected by a giant net structure, and there is no column inside. The grandstand is a complete bowl-shaped shape without any shelter, just like a huge container, which gives the stadium incredible drama and unparalleled shock. This uniform and continuous ring will also give the audience the best view, stimulate their excitement and inspire athletes to sprint faster, higher and stronger. Here, people are truly given a central position.

What is more ingenious is that the "Bird's Nest" slightly bulges the outdoor terrain of the whole stadium, placing many ancillary facilities under the terrain, which not only avoids the huge investment consumed by the underground excavation, but also slowly descends on the edge of the outdoor square, building 2, open-air seats in the warm-up venue according to the situation, organically integrating with the surrounding environment, and saving investment again.

Guan Zhaoye, chairman of the judging committee and academician of China Academy of Engineering, commented that there is no unnecessary treatment for this building, and everything has an image because of its function, and the architectural form and structural details are naturally unified.

The jury and many other architectural experts agree that the "Bird's Nest" will not only set up a unique historic landmark building for the 28 Olympic Games, but also be of groundbreaking significance in the history of world architectural development, and will provide historical testimony for the development of China and the world architecture in the 21st century.

It is not easy to design and build a "Bird's Nest", and it is even more difficult to make the "Bird's Nest" full of vigor and vitality in the future. According to reports, the concept of thrifty hosting the Olympic Games and sustainable development has been running through the design of the "Bird's Nest" at the beginning and in the process of deepening the design. Under the premise of meeting the Olympic function, the balance between permanent facilities and temporary facilities is fully considered. According to the requirements, the Bird's Nest has 1, seats, of which 8, are permanent and the other 2, are temporarily added during the Olympic Games.

On this basis, the function of the "Bird's Nest" is combined with the future positioning of surrounding areas and even the medium-and long-term development planning of the whole city. According to the established planning scheme, the central area of the Olympic Park where the "Bird's Nest" is located will become a civic activity center integrating sports competitions, conferences and exhibitions, culture and entertainment, business and leisure shopping. As the main stadium of Beijing Olympic Games, the "Bird's Nest" will become one of the landmark buildings in Beijing, and it will also become a hot spot for visiting and traveling for a long time. At the same time, in the design and construction of the "Bird's Nest", great efforts have been made in the multi-function of the venue and space, so as to improve the utilization efficiency of the venue. Besides being able to undertake the opening, closing and sports competitions, it will also meet various needs such as fitness, business, exhibition and performance, laying a solid foundation for the successful implementation of "post-Olympic development".

As the main stadium of Beijing Olympic Games, the National Stadium will adopt solar photovoltaic power generation system. Green Olympics, Hi-tech Olympics and People's Olympics are the three major themes of Beijing Olympics. Suntech's solar photovoltaic power generation system settled in the "Bird's Nest", integrating clean and environmentally friendly solar power generation with the national stadium, which is not only an excellent embodiment of the three major themes of Beijing Olympics, but also plays a positive role in promoting the use of green energy, effectively controlling and reducing air pollution in Beijing and surrounding areas, and advocating a green lifestyle. At present, the technology of solar photovoltaic power generation system is at the advanced level in the world. The solar power generation system is independently developed by Wuxi Suntech Solar Power Co., Ltd. and provided exclusively to the National Stadium. It is installed on 12 main passages of the National Stadium with a total investment of 1 million yuan and a total capacity of 13 kilowatts, which will play a good supplement to the power supply of the National Stadium.