Kyushu Japan Railway Company Kumamoto Branch

Kumamoto-shi, Kumamoto
Kyushu Japan Railway Company Kumamoto Branch

CLT building under an elevated track

The new Kumamoto branch of Kyushu Railway Company was planned for a site under an elevated railway section on the north side of Kumamoto Station. Kyushu Railway Company is actively using locally-grown timber to add wooden finishes to its rolling stock, station buildings, and elsewhere. Therefore, this building also uses local timber for its wooden structure. In particular, we tried using “CLT” (cross-laminated timber), a new wooden construction material, under the elevated railway. The building we formed from CLT, which was made from local timber, achieves innovation and community contribution, and forms spaces that give a feeling of the warmth of wood. This building made use of the “Project to validate the insulative performance effects of business facilities which use timber,” which is a subsidy project by the Ministry of the Environment. It will be used over the next several years to validate the energy-saving and CO₂-reduction effects of CLT.

Office Buildings
Sustainable Architecture
Providing Safe and Secure Buildings
The 63rd Association of Railway Architects Award
The 31st Nikkei New Office Award*
*application from the client

Work data

Kyushu Railway Company
Kumamoto-shi, Kumamoto
Steel, partly timber structure (CLT construction method)
Number of floors
1 above-ground level
Total Floor Area
March 2018
Building Use
Structural design: Yasui Architects and Engineers, Inc., Sumitomo Forestry Co., Ltd.
Supervision: Kyushu Railway Company, Construction Division, Facilities Section
Photo Credit
JR Kyushu, Open House
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