The “3way” open classroom built at the ETSAV , is an ultra-thin gridshell of long and wide birch plywood 12mm planks. The structure hosts openair lectures for students. The system is based on the coupling of three families of pseudo-geodesic curves on a common surface, that can be built from completely straight and planar planks without any waste. The simple 1D manufacturing technology relies solely on the exact positioning of the holes. The students followed a program of continuous reviews by international experts on structural design, wood construction, computational geometry and membrane patterning. The students solved all the design, numerical fabrication and construction processes themselves. It was built at the Stage phase in June 2021 in Barcelona.

Students: Jorge Adrian Martorell, Christian Merhej, Rudy Riachy, Alberto Sadun, Marc Serra, Alex Solà, Aitor Vadillo, Luis Ángel Garcia, Khalifa Alkhazriji, Ángel Barrón, Dalia Ezzeddine, Danny Vallejo, Ehsan Naguib, Weston Porter.

International experts:

Julian Lienhard , Bending-active, STR.ucture

Dragos Naicu, timber gridhsell

Anna Bauer, Structural analysis, Kiwi3d

Ángel Antequera, Load cases and Wind, CODA

Alberto Pugnale, Timber construction, University Melbourne

Almudena Majano, Timber engineering, UPMadrid

Antonio Lara, Timber Engineering, UPMadrid

Ton Miserachs, Membrane patterning, TP construcció i Arquitectura textil

Structural Analysis for the Optimization of Three-Way Geodesic Gridshell and Membrane as Structural Element Analysis