【万博レポート】大屋根リングの造り方 | Expo 2025 Osaka, Kansai, Japan

Описание: Today, we’re going to be exploring the colossal wooden structure in the heart of the Expo, the Grand Ring!
It’s in fact the largest wooden structure in the world, built using centuries-old Japanese carpentry techniques.
The Grand Ring is a 675 metre wide, giant circular structure that surrounds the central zones of the expo.
But what really makes the Grand Ring special is the fact that it is made almost entirely of wood.
Despite its massive size, almost all of its structural components are made of wood.
On top of that, just 30% of the wood used to make it was imported, while the remaining 70% was domestically sourced timber, from suppliers all over Japan from Hokkaido to Kyushu.
The use of so much local timber has contributed to Japan’s forestry industry and local economies.
Not to mention that it has even been officially registered in the Guinness World Records as the largest wooden structure in the world!
It was constructed with traditional Nuki joints, which have historically been used to build shrines, Buddhist temples and so on.
Nuki joinery is a technique where wooden beams are put through holes in wooden posts, and wedged tightly in place.
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■Grand Ring
https://www.expo2025.or.jp/en/expo-ma...

■Nuki (joinery)
https://en.wikipedia.org/wiki/Nuki_(j...)

■EXPO 2025 OSAKA KANSAI JAPAN
https://www.expo2025.or.jp/en/overvie...

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This channel is run by a team of Japanese people living in Japan who wish to share some of the lesser-known but equally spectacular sights and experiences in Japan. Through our travels, we will share Japanese history, culture, food, activities, and much more with you!
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00:00 intro
01:17 What is Grand Ring?
02:19 What is the Grand Ring made of?
03:17 Japan's proud traditional Nuki joinery
04:00 Sustainability in mind
05:04 Beautiful artwork
06:01 What will happen to this after the Expo ends?
06:35 outro