A 3d-printed house to withstand strong earthquakes was built in 26 hours

A team in Guatemala used 3D printing technology to construct an earthquake-proof house within a remarkable timeframe of 26 hours. This project aimed to create a structure designed to withstand earthquakes, since 3d structures have already been constructed worldwide. This innovative approach involved organic-shaped walls produced by the 3D printer, combined with traditional techniques, e.g. a palm leaf roof.

COBOD International, a 3D printer supplier, collaborated with the Danish architecture firm 3DCP Group and Progreso, a cement company, to build the 49 square-meter house. The construction, consisting of 3-meter-high walls, was completed in 26 printing hours spread across seven days.

To enhance the earthquake resistance of the structure, meticulous calculations were undertaken to ensure compliance with local codes and global guidelines. Despite challenges posed by extreme heat and direct sunlight, the team strategically printed during nighttime to counteract potential ink cracking. Additionally, heavy rainfall was a difficulty during the construction process.

The significance of 3D-printed buildings has gained interest in recent years, driven by environmental considerations within the construction sector. COBO is recognized for designing Europe's first 3D-printed building in Copenhagen, Denmark, and a school in Ukraine amid wartime destruction. The technology's potential to reduce greenhouse gas emissions and material waste in construction should be highlighted.

Given that the construction industry contributes significantly to greenhouse gas emissions, the efficiency and reduced environmental footprint offered by 3D printing are becoming increasingly significant. The technology not only minimizes waste but also eases the physical demands on workers, eliminating heavy lifting and reducing the likelihood of errors while accelerating production.