Experimenting with digital natural growth models

The Ligna Pavilion is an experimental and temporary pavilion constructed entirely of wood. The idea of the project is to incorporate the logic and behavior of natural growth models with architecture to generate the structure of the pavilion. Algorithmic design methods were used to control and integrate the design and manufacturing process.

Location: Hanover, Germany / Oulu, Finland

Program: Pavilion

Client: Woodpolis Oy

Team: Lundén Österlund Architects, Eero Lundén, Toni Österlund

Lunden Architecture Company_Ligna6

Tree-like Structure

The structure of the Ligna Pavilion is based on digitally grown “trees”. The digital trees were grown with three-dimensional L-system (Lindenmayer System) on a base surface that defines the overall form. The finished design structure consists of 324 individual birch beams in 4 sections sizes and with 487 connections.No two beams are alike.

The digital model of the generated pavilion was transferred to computerized machinery at Woodpolis at Kuhmo, Finland. All the birch beams were manufactured during one day. The pavilion was first assembled at the Ligna-fair in Hannover, Germany, after which it was moved to the courtyard of the Oulu School of Architecture in Finland.

Lunden Architecture Company_Ligna11 © Sauli Kosonen

No two beams are alike.

Lunden Architecture Company_Ligna8 © Sauli Kosonen

Pavilion under construction

Lunden Architecture Company_Ligna1 © Sauli Kosonen

Pavilion amongst trees