Gramazio Kohler Research
Open Positions
On-site Robotic Construction
Robotic Lightweight Structures
Jammed Architectural Structures
Complex Timber Structures
Spatial Wire Cutting
Mobile Robotic Tiling
Rock Print
The Sequential Roof
Aerial Construction
Smart Dynamic Casting
Topology Optimization
Iridescence Print
Robotic Fabrication Laboratory
Mesh Mould
YOUR Software Environment
Robotic Foldings
Acoustic Bricks
Flight Assembled Architecture
The Endless Wall
The Catenary Pavilion
Additive processes
Pike Loop
Room acoustics
Architonic Concept Space
Structural Oscillations
Winery Gantenbein

The Sequential Roof, Zurich, 2010-2015
Digital assembly of a complex roof structure
The Arch_Tec_Lab of the Institute of Technology in Architecture (ITA) is covered by a novel timber roof structure, developed and planned at the Chair of Architecture and Digital Fabrication. The structure consists of 168 single trusses – which are woven into a 2,308 square meter free-form roof design. As such, an integrated digital planning process connects design, structural analysis and the generation of fabrication data. Based on this data, a robot-based assembly process of 48,624 timber slats to individually formed trussed beams allows an efficient fabrication of the complex roof geometry. The project demonstrates the potential of combining digital fabrication technology with timber as a local and sustainable building material. In collaboration with experts from academia and practice, the Chair's research results in the field of digital timber construction are being condensed and applied at full architectural scale. The Sequential Roof was planned by Arch-Tec-Lab AG and manufactured by ERNE AG Holzbau.
Gramazio Kohler Research, ETH Zurich

Client: ETH Zurich Building and Constructions Infrastructure Division
Collaborators: Aleksandra Anna Apolinarska (project lead construction), Michael Knauss (project lead building project), Jaime de Miguel (project lead preliminary project), Selen Ercan, Olga Linardou
Selected experts: Dr. Lüchinger + Meyer Bauingenieure AG, SJB. Kempter Fitze AG, Prof. Dr. Josef Schwartz (Chair of Structural Design, ETH Zurich), Prof. Dr. Andrea Frangi (Institute of Structural Engineering, ETH Zurich), Estia SA (EPF Lausanne), ROB Technologies AG
Selected contractors: Arch-Tec-Lab AG, ERNE AG Holzbau

Copyright 2014, Gramazio Kohler Research, ETH Zurich, Switzerland
Gramazio Kohler Research
Chair of Architecture and Digital Fabrication
ETH Zurich / Building HIL / Floor F / Room 56
Stefano-Franscini Platz 5 / CH-8093 Zurich

+41 44 633 49 06
+41 44 633 11 71