The Swiss village of Mulens has recently completed the construction of a remarkable 30-meter tower named Tor Alva, which is now recognized as the tallest building in the world created through 3D printing technology. This innovative structure was printed using advanced techniques on a large 3D printer.
The project was driven by architects Michael Hansmeyer and Professor Benjamin Dillenburger from ETH Zurich, with the goal of revitalizing the small village, which currently has a population of just 11, predominantly elderly residents. The tower was designed to resemble a multi-layered cake and is comprised of 32 white concrete columns, reflecting the artistic legacy of Swiss confectionery.
The building process took five months, with construction elements being crafted on site and then assembled using two robotic systems. One robot utilized a cement-like mixture to build the structure layer by layer, while another integrated steel reinforcements within the columns to enhance load-bearing capabilities. This method also allows for the creation of complex shapes, which would be challenging to achieve using traditional concrete.
Notably, the assembly of the tower employs a formwork-free technique, connecting its elements with removable screws and cables, facilitating potential future disassembly and relocation.
The Tor Alva tower is set to be open for tours starting May 23, 2025, with plans for the upper level to host theatrical performances. The structure is expected to remain in Mulens for around five years before it will be dismantled and reassembled elsewhere.
For more details on the innovations in construction through 3D printing, visit ETH Zurich and NewAtlas.