Trees planted 50 years ago to regenerate the mountains of Japan, which had been devastated by overlogging, have matured and are now ready to be harvested. In the future, we will utilize these forest resources in our daily lives and be able to maintain Japan's forests in a stable manner through initiatives toward economic activities that come full circle.
As a new way of using wood that contributes to the expansion of the "forest cycle," a forest resource cycle, we have developed and put into practical use the T-Forest series of earthquake-resistant reinforcement technology using wood-based materials, and we are developing it into the "Forest Grand Cycle."
Seismic reinforcement technology "T-FoRest" series
Wooden brace "T-FoRest Light"
This is an “earthquake-resistant bracing” reinforcement method that uses laminated wood.
It is almost as strong as bracing that uses steel frames.
Incorporating PC steel rods into the laminated wood braces allows them to efficiently bear “pushing” and “pulling” forces.
Wooden Earthquake-Resistant "T-FoRest Wall"
This is a reinforcement method that uses “earthquake-resistant walls” made of wooden panels.
It is almost as strong as reinforced concrete (RC) bearing walls.
The wood panels (CLT or LVL) are fixed to RC columns and beams of the building using special adhesives.
Wooden material used in earthquake reinforcement and manufacturing methods
New wood-based materials called engineered wood, such as laminated wood, CLT, and LVL are now attracting attention as a third type of construction material that can replace conventional concrete and steel.
Case Study
Major awards for T-FoRest.
2015 Commendation from the Ministry of the Environment for Activities for the Prevention of Global Warming
2016 Eco-Products Award (Award from the Ministry of Land, Infrastructure, Transport and Tourism)
2016 Wood Design Award, 2016 Excellence Award (Director-General of the Forestry Agency Award)
2016 Japan Prestressed Concrete Institute Award (Technology Development Division)
2017 Engineering Distinguished Service Award
Case Study
Takenaka Corporation Niikura Takenaka Dormitory (T-FoRest Wall renovated in December 2014)
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Scene of installation work -
Cafeteria (CLT earthquake-resistant wall)
Mukogawa Women's University, Literature Building No.2
(T-FoRest Wall renovated in October 2015)
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General classroom (LVL earthquake-resistant wall) -
Seminar room (LVL earthquake-resistant wall)
Arima Onsen Taiko-no-yu, Arima Kirari (T-FoRest Light renovated in March 2019)
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After installation -
Rest area (Wooden brace)