Steel-wood structure | Tokyo 2020 Olympics Main Venue

Steel-wood structure | Tokyo 2020 Olympics Main Venue

The Tokyo Olympics in Japan started on July 23, 2021. In addition to the exciting events of the Olympics, the wooden buildings specific to the Olympics are also very attractive.

1. Tokyo Olympic Village Plaza

40,000 pieces of recyclable wood

The Tokyo Olympic Organizing Committee has a sustainable project called "Operation BATON" (Baton Operation), which means to use the country's sustainable resources to build the Olympic Village.

This plan means that all buildings in the Tokyo 2020 Olympic Village Plaza will be constructed using recycled wood.

As early as the 2018 Tokyo Olympics, the wooden badge was born. The badge is made of wood such as Japanese cedar, Japanese larch, and Japanese cypress. These woods are also commonly used in "Japanese-style Wakai" buildings.

Since the introduction of this dazzling badgevarious buildings in the Olympic Village have also continued this concept. Architects using wood donated by various municipal governments have taken this opportunity to show their talents to maximize the beauty of space, light and shadow, and simplicity of modern Japanese architectural design.

The Olympic Village Plaza building was constructed from 40,000 pieces of wood and cost 2.4 billion yen (approximately 150 million yuan). The wood types donated by 63 municipal governments include larch, Japanese cedar, and Japanese cypress.

Each piece of wood is marked with the name of the donated city. Does the combination of Japanese kanji and the original wood reminiscent of the Japanese modern design style like ``MUJI''?

After the Tokyo Olympics, every piece of wood in the Olympic Village Square will be demolished and returned to the donated city for recycling, and for the construction of local public facilities, such as the construction of public benches or school buildings.

2. Important reception place

There are general stores, cafes, and media centers in the square. These facilities provide convenient resources for athletes during their stay in the Olympic and Paralympic Games.

During the Olympic Games, athletes and staff from more than 200 countries will gather in the Olympic Village. The square will be the central hub of the entire Olympic Village in terms of location and function .

It not only hosts the opening ceremony of the Olympic Village, but is also an important place to receive politicians and media from all over the world.

The main stadium of the Olympic Games-New National Stadium


1. Giant wooden stadium

The brand new National Arena was rebuilt from the old gymnasium originally built-in 1958. It will host the opening and closing ceremonies of the Olympic Games, as well as football matches and other sports events here. This "Forest Stadium" has a distinctive Kengo Kuma style, which fully demonstrates the characteristics of localization and low-carbon environmental protection.

From a distance, the entire stadium is surrounded by trees, and the stadium itself is actually a huge collection of slender wooden blocks.

All the timber used for construction is taken from 47 prefectures and cities in JapanIt can be said that it symbolizes the concerted efforts of the whole people to participate in the construction of the main Olympic stadium. The mixed structure composed of wood and steel supports the large roof with a total weight of 20,000 tons.

2. Combining nature with modern technology

The façade is composed of overlapping multi-layer eaves. The eaves are inspired by the construction craftsmanship of Japanese temple eaves. The small-diameter wooden shutters reproduce the traditional beauty of Japanese architecture in a modern way.

Kengo Kuma once said that in the design of the Olympic venues, he is most proud of two things: one is that the venue does not have any air-conditioning; the other is the construction of spaces and walks for people to get close to.

The ingenious multi-layer eaves design introduces natural wind into the center of the venue. In addition, 185 blowers with strong horsepower covering the entire hall were installed to increase ventilation and provide assistance for low-carbon cooling.

The wrap-around outdoor corridor on the 5th floor of the stadium is called  "the forest of the sky", planted with more than 100 kinds of plants such as cherry blossoms, trees, shrubs, and moss, echoing the forest outside the stadium. When the weather is fine, people can stroll around and look at the Tokyo Skytree, a landmark building in the distance.


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