Innovative Timber Pavilion Unveiled for Japan's National Tree-Planting Festival

The Onodatesho Pavilion, a striking temporary structure made from local cedar and cypress, was unveiled for Japan’s 76th National Tree-Planting Festival. Designed by Yano Aoyama Architecture Design, this pavilion serves as a ceremonial centerpiece, welcoming the Emperor and Empress at an event dedicated to celebrating and preserving the nation's forests.

Architectural Design and Structure

The pavilion showcases a unique design characterized by three asymmetrical planes that rotate around an imaginary axis. This architectural marvel, crafted from the largest cross-laminated timber (CLT) panels available in Japan, features dimensions of 12 by 2.3 meters. The form is achieved through a series of six operations—tilt, rotate, lean, taper, shift, and cut—employing a simple structural system that emphasizes reuse and sustainability.

Material and Community Collaboration

Collaboration played a crucial role in the pavilion's development, as local carpenters and CLT manufacturers partnered with the architects to blend traditional timber craftsmanship with modern techniques. The use of cedar and cypress from the Ehime region not only enhances the pavilion's aesthetic but also strengthens its connection to the local environment. Additionally, the pavilion incorporates cut-offs from the CLT panels into secondary elements, promoting a culture of material reuse.

Post-Festival Life of the Pavilion

True to its sustainable ethos, the Onodatesho Pavilion is designed with a life beyond the festival. After the event, the main CLT panels can be easily disassembled and repurposed for custom furniture within the regional school network. This approach ensures that the pavilion, while temporary, contributes to the community long after the festival concludes.

Source: www.designboom.com