Winner 2022

The Supreme Award for Structural Engineering Excellence

Award for
advancing the structural application of low carbon materials

Project Description

This school gymnasium in Bali is an ambitious demonstration of the structural use of bamboo, utilising the material’s unique combination of strength and flexibility. Anticlastic shells span between 19m wide by 13m high arches, both of which contribute to the structural spanning. Due to the variable material properties of bamboo and the pioneering form, extensive testing was carried out to justify the design.

Judge’s comments

Ark Gymnasium is an extraordinary project. It brings together local materials, fundamental research and creativity-charged structural engineering expertise to produce something of pure delight. Not only does it demonstrate how we might consider the spectacular use of natural building materials for major projects, but it also lays out the path, via research, which can lead to the confident use of such materials. This is a marvellous demonstration of artistry, technical know how and a drive towards net zero.

Project overview

Structural Designer

  • Atelier One

Client Name

  • The Green School, Bali


  • Bali, Indonesia


  • Ibuku

Principal Contractor

  • PT Bamboo Pure

Key Contractors

  • Jorg Stamm – Bamboo Master Craftsman

    Studio Nimmersatt – Lighting

    Tommaso Riva – Photographer

    James Wolf – Testing Co-ordinator

Year Submitted

  • 2022

Key attributes

  • Planet, Process